1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/renderer_host/render_widget_host_impl.h"
6
7 #include <math.h>
8
9 #include <algorithm>
10 #include <set>
11 #include <tuple>
12 #include <unordered_map>
13 #include <utility>
14
15 #include "base/auto_reset.h"
16 #include "base/bind.h"
17 #include "base/bind_helpers.h"
18 #include "base/command_line.h"
19 #include "base/hash/hash.h"
20 #include "base/i18n/rtl.h"
21 #include "base/lazy_instance.h"
22 #include "base/location.h"
23 #include "base/macros.h"
24 #include "base/message_loop/message_loop_current.h"
25 #include "base/metrics/field_trial.h"
26 #include "base/metrics/histogram_macros.h"
27 #include "base/single_thread_task_runner.h"
28 #include "base/strings/string_number_conversions.h"
29 #include "base/strings/utf_string_conversions.h"
30 #include "base/task/post_task.h"
31 #include "base/threading/thread_task_runner_handle.h"
32 #include "base/time/default_tick_clock.h"
33 #include "base/trace_event/trace_event.h"
34 #include "build/build_config.h"
35 #include "cc/base/switches.h"
36 #include "cc/trees/browser_controls_params.h"
37 #include "cc/trees/render_frame_metadata.h"
38 #include "components/viz/common/features.h"
39 #include "components/viz/host/host_frame_sink_manager.h"
40 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
41 #include "content/browser/bad_message.h"
42 #include "content/browser/browser_main_loop.h"
43 #include "content/browser/browser_plugin/browser_plugin_guest.h"
44 #include "content/browser/child_process_security_policy_impl.h"
45 #include "content/browser/compositor/surface_utils.h"
46 #include "content/browser/file_system/browser_file_system_helper.h"
47 #include "content/browser/gpu/compositor_util.h"
48 #include "content/browser/renderer_host/dip_util.h"
49 #include "content/browser/renderer_host/display_util.h"
50 #include "content/browser/renderer_host/frame_token_message_queue.h"
51 #include "content/browser/renderer_host/input/fling_scheduler.h"
52 #include "content/browser/renderer_host/input/input_router_config_helper.h"
53 #include "content/browser/renderer_host/input/input_router_impl.h"
54 #include "content/browser/renderer_host/input/synthetic_gesture.h"
55 #include "content/browser/renderer_host/input/synthetic_gesture_controller.h"
56 #include "content/browser/renderer_host/input/synthetic_gesture_target.h"
57 #include "content/browser/renderer_host/input/timeout_monitor.h"
58 #include "content/browser/renderer_host/input/touch_emulator.h"
59 #include "content/browser/renderer_host/render_view_host_delegate.h"
60 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
61 #include "content/browser/renderer_host/render_view_host_impl.h"
62 #include "content/browser/renderer_host/render_widget_helper.h"
63 #include "content/browser/renderer_host/render_widget_host_input_event_router.h"
64 #include "content/browser/renderer_host/render_widget_host_owner_delegate.h"
65 #include "content/browser/renderer_host/render_widget_host_view_base.h"
66 #include "content/browser/renderer_host/render_widget_host_view_child_frame.h"
67 #include "content/common/content_constants_internal.h"
68 #include "content/common/cursors/webcursor.h"
69 #include "content/common/drag_messages.h"
70 #include "content/common/frame_messages.h"
71 #include "content/common/input/sync_compositor_messages.h"
72 #include "content/common/input_messages.h"
73 #include "content/common/text_input_state.h"
74 #include "content/common/view_messages.h"
75 #include "content/common/visual_properties.h"
76 #include "content/common/widget_messages.h"
77 #include "content/public/browser/browser_context.h"
78 #include "content/public/browser/browser_thread.h"
79 #include "content/public/browser/device_service.h"
80 #include "content/public/browser/keyboard_event_processing_result.h"
81 #include "content/public/browser/native_web_keyboard_event.h"
82 #include "content/public/browser/notification_service.h"
83 #include "content/public/browser/notification_types.h"
84 #include "content/public/browser/peak_gpu_memory_tracker.h"
85 #include "content/public/browser/render_frame_metadata_provider.h"
86 #include "content/public/browser/render_widget_host_iterator.h"
87 #include "content/public/browser/render_widget_host_observer.h"
88 #include "content/public/browser/storage_partition.h"
89 #include "content/public/common/content_constants.h"
90 #include "content/public/common/content_features.h"
91 #include "content/public/common/content_switches.h"
92 #include "content/public/common/result_codes.h"
93 #include "content/public/common/use_zoom_for_dsf_policy.h"
94 #include "content/public/common/web_preferences.h"
95 #include "gpu/GLES2/gl2extchromium.h"
96 #include "gpu/command_buffer/service/gpu_switches.h"
97 #include "gpu/ipc/common/gpu_messages.h"
98 #include "mojo/public/cpp/bindings/pending_receiver.h"
99 #include "mojo/public/cpp/system/platform_handle.h"
100 #include "net/base/filename_util.h"
101 #include "skia/ext/image_operations.h"
102 #include "skia/ext/platform_canvas.h"
103 #include "storage/browser/file_system/isolated_context.h"
104 #include "third_party/blink/public/web/web_ime_text_span.h"
105 #include "ui/base/clipboard/clipboard_constants.h"
106 #include "ui/base/ui_base_switches.h"
107 #include "ui/display/display_switches.h"
108 #include "ui/display/screen.h"
109 #include "ui/events/blink/web_input_event_traits.h"
110 #include "ui/events/event.h"
111 #include "ui/events/keycodes/dom/dom_code.h"
112 #include "ui/gfx/color_space.h"
113 #include "ui/gfx/geometry/size_conversions.h"
114 #include "ui/gfx/geometry/vector2d_conversions.h"
115 #include "ui/gfx/geometry/vector2d_f.h"
116 #include "ui/gfx/image/image.h"
117 #include "ui/gfx/image/image_skia.h"
118 #include "ui/gfx/skbitmap_operations.h"
119 #include "ui/snapshot/snapshot.h"
120
121 #if defined(OS_ANDROID)
122 #include "content/browser/renderer_host/input/fling_scheduler_android.h"
123 #include "ui/android/view_android.h"
124 #endif
125
126 #if defined(OS_MACOSX)
127 #include "content/browser/renderer_host/input/fling_scheduler_mac.h"
128 #include "services/device/public/mojom/wake_lock_provider.mojom.h"
129 #include "ui/accelerated_widget_mac/window_resize_helper_mac.h"
130 #endif
131
132 using base::TimeDelta;
133 using base::TimeTicks;
134 using blink::WebDragOperation;
135 using blink::WebDragOperationsMask;
136 using blink::WebGestureEvent;
137 using blink::WebInputEvent;
138 using blink::WebKeyboardEvent;
139 using blink::WebMouseEvent;
140 using blink::WebMouseWheelEvent;
141
142 namespace content {
143 namespace {
144
145 bool g_check_for_pending_visual_properties_ack = true;
146
ShouldDisableHangMonitor()147 bool ShouldDisableHangMonitor() {
148 return base::CommandLine::ForCurrentProcess()->HasSwitch(
149 switches::kDisableHangMonitor);
150 }
151
152 // <process id, routing id>
153 using RenderWidgetHostID = std::pair<int32_t, int32_t>;
154 using RoutingIDWidgetMap =
155 std::unordered_map<RenderWidgetHostID,
156 RenderWidgetHostImpl*,
157 base::IntPairHash<RenderWidgetHostID>>;
158 base::LazyInstance<RoutingIDWidgetMap>::DestructorAtExit
159 g_routing_id_widget_map = LAZY_INSTANCE_INITIALIZER;
160
161 // Implements the RenderWidgetHostIterator interface. It keeps a list of
162 // RenderWidgetHosts, and makes sure it returns a live RenderWidgetHost at each
163 // iteration (or NULL if there isn't any left).
164 class RenderWidgetHostIteratorImpl : public RenderWidgetHostIterator {
165 public:
RenderWidgetHostIteratorImpl()166 RenderWidgetHostIteratorImpl()
167 : current_index_(0) {
168 }
169
~RenderWidgetHostIteratorImpl()170 ~RenderWidgetHostIteratorImpl() override {}
171
Add(RenderWidgetHost * host)172 void Add(RenderWidgetHost* host) {
173 hosts_.push_back(RenderWidgetHostID(host->GetProcess()->GetID(),
174 host->GetRoutingID()));
175 }
176
177 // RenderWidgetHostIterator:
GetNextHost()178 RenderWidgetHost* GetNextHost() override {
179 RenderWidgetHost* host = nullptr;
180 while (current_index_ < hosts_.size() && !host) {
181 RenderWidgetHostID id = hosts_[current_index_];
182 host = RenderWidgetHost::FromID(id.first, id.second);
183 ++current_index_;
184 }
185 return host;
186 }
187
188 private:
189 std::vector<RenderWidgetHostID> hosts_;
190 size_t current_index_;
191
192 DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostIteratorImpl);
193 };
194
DropDataToMetaData(const DropData & drop_data)195 std::vector<DropData::Metadata> DropDataToMetaData(const DropData& drop_data) {
196 std::vector<DropData::Metadata> metadata;
197 if (!drop_data.text.is_null()) {
198 metadata.push_back(DropData::Metadata::CreateForMimeType(
199 DropData::Kind::STRING, base::ASCIIToUTF16(ui::kMimeTypeText)));
200 }
201
202 if (drop_data.url.is_valid()) {
203 metadata.push_back(DropData::Metadata::CreateForMimeType(
204 DropData::Kind::STRING, base::ASCIIToUTF16(ui::kMimeTypeURIList)));
205 }
206
207 if (!drop_data.html.is_null()) {
208 metadata.push_back(DropData::Metadata::CreateForMimeType(
209 DropData::Kind::STRING, base::ASCIIToUTF16(ui::kMimeTypeHTML)));
210 }
211
212 // On Aura, filenames are available before drop.
213 for (const auto& file_info : drop_data.filenames) {
214 if (!file_info.path.empty()) {
215 metadata.push_back(DropData::Metadata::CreateForFilePath(file_info.path));
216 }
217 }
218
219 // On Android, only files' mime types are available before drop.
220 for (const auto& mime_type : drop_data.file_mime_types) {
221 if (!mime_type.empty()) {
222 metadata.push_back(DropData::Metadata::CreateForMimeType(
223 DropData::Kind::FILENAME, mime_type));
224 }
225 }
226
227 for (const auto& file_system_file : drop_data.file_system_files) {
228 if (!file_system_file.url.is_empty()) {
229 metadata.push_back(
230 DropData::Metadata::CreateForFileSystemUrl(file_system_file.url));
231 }
232 }
233
234 for (const auto& custom_data_item : drop_data.custom_data) {
235 metadata.push_back(DropData::Metadata::CreateForMimeType(
236 DropData::Kind::STRING, custom_data_item.first));
237 }
238
239 return metadata;
240 }
241
242 class UnboundWidgetInputHandler : public mojom::WidgetInputHandler {
243 public:
SetFocus(bool focused)244 void SetFocus(bool focused) override {
245 DLOG(WARNING) << "Input request on unbound interface";
246 }
MouseCaptureLost()247 void MouseCaptureLost() override {
248 DLOG(WARNING) << "Input request on unbound interface";
249 }
MouseLockLost()250 void MouseLockLost() override {
251 DLOG(WARNING) << "Input request on unbound interface";
252 }
SetEditCommandsForNextKeyEvent(const std::vector<content::EditCommand> & commands)253 void SetEditCommandsForNextKeyEvent(
254 const std::vector<content::EditCommand>& commands) override {
255 DLOG(WARNING) << "Input request on unbound interface";
256 }
CursorVisibilityChanged(bool visible)257 void CursorVisibilityChanged(bool visible) override {
258 DLOG(WARNING) << "Input request on unbound interface";
259 }
FallbackCursorModeToggled(bool is_on)260 void FallbackCursorModeToggled(bool is_on) override {
261 DLOG(WARNING) << "Input request on unbound interface";
262 }
ImeSetComposition(const base::string16 & text,const std::vector<ui::ImeTextSpan> & ime_text_spans,const gfx::Range & range,int32_t start,int32_t end)263 void ImeSetComposition(const base::string16& text,
264 const std::vector<ui::ImeTextSpan>& ime_text_spans,
265 const gfx::Range& range,
266 int32_t start,
267 int32_t end) override {
268 DLOG(WARNING) << "Input request on unbound interface";
269 }
ImeCommitText(const base::string16 & text,const std::vector<ui::ImeTextSpan> & ime_text_spans,const gfx::Range & range,int32_t relative_cursor_position,ImeCommitTextCallback callback)270 void ImeCommitText(const base::string16& text,
271 const std::vector<ui::ImeTextSpan>& ime_text_spans,
272 const gfx::Range& range,
273 int32_t relative_cursor_position,
274 ImeCommitTextCallback callback) override {
275 DLOG(WARNING) << "Input request on unbound interface";
276 }
ImeFinishComposingText(bool keep_selection)277 void ImeFinishComposingText(bool keep_selection) override {
278 DLOG(WARNING) << "Input request on unbound interface";
279 }
RequestTextInputStateUpdate()280 void RequestTextInputStateUpdate() override {
281 DLOG(WARNING) << "Input request on unbound interface";
282 }
RequestCompositionUpdates(bool immediate_request,bool monitor_request)283 void RequestCompositionUpdates(bool immediate_request,
284 bool monitor_request) override {
285 DLOG(WARNING) << "Input request on unbound interface";
286 }
DispatchEvent(std::unique_ptr<content::InputEvent> event,DispatchEventCallback callback)287 void DispatchEvent(std::unique_ptr<content::InputEvent> event,
288 DispatchEventCallback callback) override {
289 DLOG(WARNING) << "Input request on unbound interface";
290 }
DispatchNonBlockingEvent(std::unique_ptr<content::InputEvent> event)291 void DispatchNonBlockingEvent(
292 std::unique_ptr<content::InputEvent> event) override {
293 DLOG(WARNING) << "Input request on unbound interface";
294 }
WaitForInputProcessed(WaitForInputProcessedCallback callback)295 void WaitForInputProcessed(WaitForInputProcessedCallback callback) override {
296 DLOG(WARNING) << "Input request on unbound interface";
297 }
AttachSynchronousCompositor(mojo::PendingRemote<mojom::SynchronousCompositorControlHost> control_host,mojo::PendingAssociatedRemote<mojom::SynchronousCompositorHost> host,mojo::PendingAssociatedReceiver<mojom::SynchronousCompositor> compositor_request)298 void AttachSynchronousCompositor(
299 mojo::PendingRemote<mojom::SynchronousCompositorControlHost> control_host,
300 mojo::PendingAssociatedRemote<mojom::SynchronousCompositorHost> host,
301 mojo::PendingAssociatedReceiver<mojom::SynchronousCompositor>
302 compositor_request) override {
303 NOTREACHED() << "Input request on unbound interface";
304 }
305 };
306
307 base::LazyInstance<UnboundWidgetInputHandler>::Leaky g_unbound_input_handler =
308 LAZY_INSTANCE_INITIALIZER;
309
310 } // namespace
311
312 ///////////////////////////////////////////////////////////////////////////////
313 // RenderWidgetHostImpl
314
RenderWidgetHostImpl(RenderWidgetHostDelegate * delegate,RenderProcessHost * process,int32_t routing_id,mojo::PendingRemote<mojom::Widget> widget,bool hidden,std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue)315 RenderWidgetHostImpl::RenderWidgetHostImpl(
316 RenderWidgetHostDelegate* delegate,
317 RenderProcessHost* process,
318 int32_t routing_id,
319 mojo::PendingRemote<mojom::Widget> widget,
320 bool hidden,
321 std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue)
322 : delegate_(delegate),
323 process_(process),
324 routing_id_(routing_id),
325 clock_(base::DefaultTickClock::GetInstance()),
326 is_hidden_(hidden),
327 latency_tracker_(delegate_),
328 hung_renderer_delay_(TimeDelta::FromMilliseconds(kHungRendererDelayMs)),
329 new_content_rendering_delay_(
330 TimeDelta::FromMilliseconds(kNewContentRenderingDelayMs)),
331 frame_token_message_queue_(std::move(frame_token_message_queue)),
332 render_frame_metadata_provider_(
333 #if defined(OS_MACOSX)
334 ui::WindowResizeHelperMac::Get()->task_runner(),
335 #else
336 base::ThreadTaskRunnerHandle::Get(),
337 #endif
338 frame_token_message_queue_.get()),
339 frame_sink_id_(base::checked_cast<uint32_t>(process_->GetID()),
340 base::checked_cast<uint32_t>(routing_id_)) {
341 DCHECK(frame_token_message_queue_);
342 frame_token_message_queue_->Init(this);
343
344 #if defined(OS_MACOSX)
345 fling_scheduler_ = std::make_unique<FlingSchedulerMac>(this);
346 #elif defined(OS_ANDROID)
347 fling_scheduler_ = std::make_unique<FlingSchedulerAndroid>(this);
348 #else
349 fling_scheduler_ = std::make_unique<FlingScheduler>(this);
350 #endif
351 CHECK(delegate_);
352 CHECK_NE(MSG_ROUTING_NONE, routing_id_);
353 DCHECK(base::ThreadPoolInstance::Get())
354 << "Ref. Prerequisite section of post_task.h";
355
356 std::pair<RoutingIDWidgetMap::iterator, bool> result =
357 g_routing_id_widget_map.Get().insert(std::make_pair(
358 RenderWidgetHostID(process->GetID(), routing_id_), this));
359 CHECK(result.second) << "Inserting a duplicate item!";
360 process_->AddRoute(routing_id_, this);
361 process_->AddObserver(this);
362 render_process_blocked_state_changed_subscription_ =
363 process_->RegisterBlockStateChangedCallback(base::BindRepeating(
364 &RenderWidgetHostImpl::RenderProcessBlockedStateChanged,
365 base::Unretained(this)));
366 process_->AddPriorityClient(this);
367
368 SetupInputRouter();
369 SetWidget(std::move(widget));
370
371 const auto* command_line = base::CommandLine::ForCurrentProcess();
372 if (!command_line->HasSwitch(switches::kDisableNewContentRenderingTimeout)) {
373 new_content_rendering_timeout_ = std::make_unique<TimeoutMonitor>(
374 base::BindRepeating(&RenderWidgetHostImpl::ClearDisplayedGraphics,
375 weak_factory_.GetWeakPtr()));
376 }
377
378 delegate_->RenderWidgetCreated(this);
379 render_frame_metadata_provider_.AddObserver(this);
380 }
381
~RenderWidgetHostImpl()382 RenderWidgetHostImpl::~RenderWidgetHostImpl() {
383 render_frame_metadata_provider_.RemoveObserver(this);
384 if (!destroyed_)
385 Destroy(false);
386 }
387
388 // static
FromID(int32_t process_id,int32_t routing_id)389 RenderWidgetHost* RenderWidgetHost::FromID(
390 int32_t process_id,
391 int32_t routing_id) {
392 return RenderWidgetHostImpl::FromID(process_id, routing_id);
393 }
394
395 // static
FromID(int32_t process_id,int32_t routing_id)396 RenderWidgetHostImpl* RenderWidgetHostImpl::FromID(
397 int32_t process_id,
398 int32_t routing_id) {
399 DCHECK_CURRENTLY_ON(BrowserThread::UI);
400 RoutingIDWidgetMap* widgets = g_routing_id_widget_map.Pointer();
401 auto it = widgets->find(RenderWidgetHostID(process_id, routing_id));
402 return it != widgets->end() ? it->second : nullptr;
403 }
404
405 // static
406 std::unique_ptr<RenderWidgetHostIterator>
GetRenderWidgetHosts()407 RenderWidgetHost::GetRenderWidgetHosts() {
408 auto hosts = std::make_unique<RenderWidgetHostIteratorImpl>();
409 for (auto& it : g_routing_id_widget_map.Get()) {
410 RenderWidgetHostImpl* widget = it.second;
411 RenderWidgetHostOwnerDelegate* owner_delegate = widget->owner_delegate();
412 // If the widget is not for a main frame, add to |hosts|.
413 if (!owner_delegate) {
414 hosts->Add(widget);
415 continue;
416 }
417
418 // If the widget is for a main frame, only add if there is a RenderWidget in
419 // the renderer process. When this is false, there is no main RenderFrame
420 // and so no RenderWidget for this RenderWidgetHost.
421 if (owner_delegate->IsMainFrameActive())
422 hosts->Add(widget);
423 }
424
425 return std::move(hosts);
426 }
427
428 // static
429 std::unique_ptr<RenderWidgetHostIterator>
GetAllRenderWidgetHosts()430 RenderWidgetHostImpl::GetAllRenderWidgetHosts() {
431 auto hosts = std::make_unique<RenderWidgetHostIteratorImpl>();
432 for (auto& it : g_routing_id_widget_map.Get())
433 hosts->Add(it.second);
434
435 return std::move(hosts);
436 }
437
438 // static
From(RenderWidgetHost * rwh)439 RenderWidgetHostImpl* RenderWidgetHostImpl::From(RenderWidgetHost* rwh) {
440 return static_cast<RenderWidgetHostImpl*>(rwh);
441 }
442
SetView(RenderWidgetHostViewBase * view)443 void RenderWidgetHostImpl::SetView(RenderWidgetHostViewBase* view) {
444 if (view) {
445 view_ = view->GetWeakPtr();
446 if (!create_frame_sink_callback_.is_null())
447 std::move(create_frame_sink_callback_).Run(view_->GetFrameSinkId());
448 } else {
449 view_.reset();
450 }
451
452 synthetic_gesture_controller_.reset();
453 }
454
455 // static
456 const base::TimeDelta RenderWidgetHostImpl::kActivationNotificationExpireTime =
457 base::TimeDelta::FromMilliseconds(300);
458
GetProcess()459 RenderProcessHost* RenderWidgetHostImpl::GetProcess() {
460 return process_;
461 }
462
GetRoutingID()463 int RenderWidgetHostImpl::GetRoutingID() {
464 return routing_id_;
465 }
466
GetView()467 RenderWidgetHostViewBase* RenderWidgetHostImpl::GetView() {
468 return view_.get();
469 }
470
GetFrameSinkId()471 const viz::FrameSinkId& RenderWidgetHostImpl::GetFrameSinkId() {
472 return frame_sink_id_;
473 }
474
SendScreenRects()475 void RenderWidgetHostImpl::SendScreenRects() {
476 if (!renderer_initialized_ || waiting_for_screen_rects_ack_)
477 return;
478
479 if (is_hidden_) {
480 // On GTK, this comes in for backgrounded tabs. Ignore, to match what
481 // happens on Win & Mac, and when the view is shown it'll call this again.
482 return;
483 }
484
485 if (!view_)
486 return;
487
488 last_view_screen_rect_ = view_->GetViewBounds();
489 last_window_screen_rect_ = view_->GetBoundsInRootWindow();
490 view_->WillSendScreenRects();
491 Send(new WidgetMsg_UpdateScreenRects(GetRoutingID(), last_view_screen_rect_,
492 last_window_screen_rect_));
493 waiting_for_screen_rects_ack_ = true;
494 }
495
SetFrameDepth(unsigned int depth)496 void RenderWidgetHostImpl::SetFrameDepth(unsigned int depth) {
497 if (frame_depth_ == depth)
498 return;
499
500 frame_depth_ = depth;
501 UpdatePriority();
502 }
503
SetIntersectsViewport(bool intersects)504 void RenderWidgetHostImpl::SetIntersectsViewport(bool intersects) {
505 if (intersects_viewport_ == intersects)
506 return;
507
508 intersects_viewport_ = intersects;
509 UpdatePriority();
510 }
511
UpdatePriority()512 void RenderWidgetHostImpl::UpdatePriority() {
513 if (!destroyed_)
514 process_->UpdateClientPriority(this);
515 }
516
Init()517 void RenderWidgetHostImpl::Init() {
518 DCHECK(process_->IsInitializedAndNotDead());
519
520 renderer_initialized_ = true;
521
522 SendScreenRects();
523 SynchronizeVisualProperties();
524
525 if (owner_delegate_)
526 owner_delegate_->RenderWidgetDidInit();
527
528 if (view_)
529 view_->OnRenderWidgetInit();
530 }
531
532 std::pair<mojo::PendingAssociatedRemote<blink::mojom::WidgetHost>,
533 mojo::PendingAssociatedReceiver<blink::mojom::Widget>>
BindNewWidgetInterfaces()534 RenderWidgetHostImpl::BindNewWidgetInterfaces() {
535 // This API may get called on a RenderWidgetHostImpl from a
536 // reused RenderViewHostImpl so we need to ensure old channels are dropped.
537 blink_widget_host_receiver_.reset();
538 blink_widget_.reset();
539 return std::make_pair(
540 blink_widget_host_receiver_.BindNewEndpointAndPassRemote(),
541 blink_widget_.BindNewEndpointAndPassReceiver());
542 }
543
BindWidgetInterfaces(mojo::PendingAssociatedReceiver<blink::mojom::WidgetHost> widget_host,mojo::PendingAssociatedRemote<blink::mojom::Widget> widget)544 void RenderWidgetHostImpl::BindWidgetInterfaces(
545 mojo::PendingAssociatedReceiver<blink::mojom::WidgetHost> widget_host,
546 mojo::PendingAssociatedRemote<blink::mojom::Widget> widget) {
547 // This API may get called on a RenderWidgetHostImpl from a
548 // reused RenderViewHostImpl so we need to ensure old channels are dropped.
549 blink_widget_host_receiver_.reset();
550 blink_widget_.reset();
551 blink_widget_host_receiver_.Bind(std::move(widget_host));
552 blink_widget_.Bind(std::move(widget));
553 }
554
555 std::pair<mojo::PendingAssociatedRemote<blink::mojom::FrameWidgetHost>,
556 mojo::PendingAssociatedReceiver<blink::mojom::FrameWidget>>
BindNewFrameWidgetInterfaces()557 RenderWidgetHostImpl::BindNewFrameWidgetInterfaces() {
558 // This API may get called on a RenderWidgetHostImpl from a
559 // reused RenderViewHostImpl so we need to ensure old channels are dropped.
560 blink_frame_widget_host_receiver_.reset();
561 blink_frame_widget_.reset();
562 return std::make_pair(
563 blink_frame_widget_host_receiver_.BindNewEndpointAndPassRemote(),
564 blink_frame_widget_.BindNewEndpointAndPassReceiver());
565 }
566
BindFrameWidgetInterfaces(mojo::PendingAssociatedReceiver<blink::mojom::FrameWidgetHost> frame_widget_host,mojo::PendingAssociatedRemote<blink::mojom::FrameWidget> frame_widget)567 void RenderWidgetHostImpl::BindFrameWidgetInterfaces(
568 mojo::PendingAssociatedReceiver<blink::mojom::FrameWidgetHost>
569 frame_widget_host,
570 mojo::PendingAssociatedRemote<blink::mojom::FrameWidget> frame_widget) {
571 // This API may get called on a RenderWidgetHostImpl from a
572 // reused RenderViewHostImpl so we need to ensure old channels are dropped.
573 blink_frame_widget_host_receiver_.reset();
574 blink_frame_widget_.reset();
575 blink_frame_widget_host_receiver_.Bind(std::move(frame_widget_host));
576 blink_frame_widget_.Bind(std::move(frame_widget));
577 }
578
InitForFrame()579 void RenderWidgetHostImpl::InitForFrame() {
580 DCHECK(process_->IsInitializedAndNotDead());
581 renderer_initialized_ = true;
582
583 if (view_)
584 view_->OnRenderWidgetInit();
585 }
586
ShouldShowStaleContentOnEviction()587 bool RenderWidgetHostImpl::ShouldShowStaleContentOnEviction() {
588 return delegate_ && delegate_->ShouldShowStaleContentOnEviction();
589 }
590
ShutdownAndDestroyWidget(bool also_delete)591 void RenderWidgetHostImpl::ShutdownAndDestroyWidget(bool also_delete) {
592 CancelKeyboardLock();
593 RejectMouseLockOrUnlockIfNecessary(
594 blink::mojom::PointerLockResult::kElementDestroyed);
595
596 if (process_->IsInitializedAndNotDead() && !owner_delegate()) {
597 // Tell the RendererWidget to close. We only want to do this if the
598 // RenderWidget is the root of the renderer object graph, which is for
599 // pepper fullscreen and popups.
600 bool rv = Send(new WidgetMsg_Close(routing_id_));
601 DCHECK(rv);
602 }
603
604 Destroy(also_delete);
605 }
606
OnMessageReceived(const IPC::Message & msg)607 bool RenderWidgetHostImpl::OnMessageReceived(const IPC::Message &msg) {
608 // Only process most messages if the RenderWidget is alive.
609 if (!renderer_initialized())
610 return false;
611
612 bool handled = true;
613 IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostImpl, msg)
614 IPC_MESSAGE_HANDLER(WidgetHostMsg_Close, OnClose)
615 IPC_MESSAGE_HANDLER(WidgetHostMsg_UpdateScreenRects_ACK,
616 OnUpdateScreenRectsAck)
617 IPC_MESSAGE_HANDLER(WidgetHostMsg_RequestSetBounds, OnRequestSetBounds)
618 IPC_MESSAGE_HANDLER(WidgetHostMsg_SetTooltipText, OnSetTooltipText)
619 IPC_MESSAGE_HANDLER(WidgetHostMsg_SetCursor, OnSetCursor)
620 IPC_MESSAGE_HANDLER(WidgetHostMsg_AutoscrollStart, OnAutoscrollStart)
621 IPC_MESSAGE_HANDLER(WidgetHostMsg_AutoscrollFling, OnAutoscrollFling)
622 IPC_MESSAGE_HANDLER(WidgetHostMsg_AutoscrollEnd, OnAutoscrollEnd)
623 IPC_MESSAGE_HANDLER(WidgetHostMsg_TextInputStateChanged,
624 OnTextInputStateChanged)
625 IPC_MESSAGE_HANDLER(WidgetHostMsg_SelectionBoundsChanged,
626 OnSelectionBoundsChanged)
627 IPC_MESSAGE_HANDLER(DragHostMsg_StartDragging, OnStartDragging)
628 IPC_MESSAGE_HANDLER(DragHostMsg_UpdateDragCursor, OnUpdateDragCursor)
629 IPC_MESSAGE_HANDLER(WidgetHostMsg_FrameSwapMessages,
630 OnFrameSwapMessagesReceived)
631 IPC_MESSAGE_HANDLER(WidgetHostMsg_ForceRedrawComplete,
632 OnForceRedrawComplete)
633 IPC_MESSAGE_HANDLER(WidgetHostMsg_DidFirstVisuallyNonEmptyPaint,
634 OnFirstVisuallyNonEmptyPaint)
635 IPC_MESSAGE_HANDLER(WidgetHostMsg_HasTouchEventHandlers,
636 OnHasTouchEventHandlers)
637 IPC_MESSAGE_HANDLER(WidgetHostMsg_IntrinsicSizingInfoChanged,
638 OnIntrinsicSizingInfoChanged)
639 IPC_MESSAGE_HANDLER(WidgetHostMsg_AnimateDoubleTapZoomInMainFrame,
640 OnAnimateDoubleTapZoomInMainFrame)
641 IPC_MESSAGE_HANDLER(WidgetHostMsg_ZoomToFindInPageRectInMainFrame,
642 OnZoomToFindInPageRectInMainFrame)
643 IPC_MESSAGE_UNHANDLED(handled = false)
644 IPC_END_MESSAGE_MAP()
645
646 return handled;
647 }
648
Send(IPC::Message * msg)649 bool RenderWidgetHostImpl::Send(IPC::Message* msg) {
650 return process_->Send(msg);
651 }
652
SetIsLoading(bool is_loading)653 void RenderWidgetHostImpl::SetIsLoading(bool is_loading) {
654 is_loading_ = is_loading;
655 if (view_)
656 view_->SetIsLoading(is_loading);
657 }
658
WasHidden()659 void RenderWidgetHostImpl::WasHidden() {
660 if (is_hidden_)
661 return;
662
663 RejectMouseLockOrUnlockIfNecessary(
664 blink::mojom::PointerLockResult::kWrongDocument);
665
666 TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::WasHidden");
667 is_hidden_ = true;
668
669 // Unthrottle SynchronizeVisualProperties IPCs so that the first call after
670 // show goes through immediately.
671 visual_properties_ack_pending_ = false;
672
673 // Don't bother reporting hung state when we aren't active.
674 StopInputEventAckTimeout();
675
676 // If we have a renderer, then inform it that we are being hidden so it can
677 // reduce its resource utilization.
678 Send(new WidgetMsg_WasHidden(routing_id_));
679
680 // Tell the RenderProcessHost we were hidden.
681 process_->UpdateClientPriority(this);
682
683 bool is_visible = false;
684 NotificationService::current()->Notify(
685 NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
686 Source<RenderWidgetHost>(this), Details<bool>(&is_visible));
687 for (auto& observer : observers_)
688 observer.RenderWidgetHostVisibilityChanged(this, false);
689 }
690
WasShown(const base::Optional<RecordContentToVisibleTimeRequest> & record_tab_switch_time_request)691 void RenderWidgetHostImpl::WasShown(
692 const base::Optional<RecordContentToVisibleTimeRequest>&
693 record_tab_switch_time_request) {
694 if (!is_hidden_)
695 return;
696
697 TRACE_EVENT_WITH_FLOW0("renderer_host", "RenderWidgetHostImpl::WasShown",
698 routing_id_, TRACE_EVENT_FLAG_FLOW_OUT);
699 is_hidden_ = false;
700
701 // If we navigated in background, clear the displayed graphics of the
702 // previous page before going visible.
703 ForceFirstFrameAfterNavigationTimeout();
704
705 SendScreenRects();
706 RestartInputEventAckTimeoutIfNecessary();
707
708 Send(new WidgetMsg_WasShown(
709 routing_id_,
710 record_tab_switch_time_request ? base::TimeTicks::Now()
711 : base::TimeTicks(),
712 view_->is_evicted(), record_tab_switch_time_request));
713 view_->reset_is_evicted();
714
715 process_->UpdateClientPriority(this);
716
717 bool is_visible = true;
718 NotificationService::current()->Notify(
719 NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
720 Source<RenderWidgetHost>(this), Details<bool>(&is_visible));
721 for (auto& observer : observers_)
722 observer.RenderWidgetHostVisibilityChanged(this, true);
723
724 // It's possible for our size to be out of sync with the renderer. The
725 // following is one case that leads to this:
726 // 1. SynchronizeVisualProperties -> Send
727 // WidgetMsg_SynchronizeVisualProperties
728 // to render.
729 // 2. SynchronizeVisualProperties -> do nothing as
730 // sync_visual_props_ack_pending_ is true
731 // 3. WasHidden
732 // By invoking SynchronizeVisualProperties the renderer is updated as
733 // necessary. SynchronizeVisualProperties does nothing if the sizes are
734 // already in sync.
735 //
736 // TODO: ideally WidgetMsg_WasShown would take a size. This way, the renderer
737 // could handle both the restore and resize at once. This isn't that big a
738 // deal as RenderWidget::WasShown delays updating, so that the resize from
739 // SynchronizeVisualProperties is usually processed before the renderer is
740 // painted.
741 SynchronizeVisualProperties();
742 }
743
744 #if defined(OS_ANDROID)
SetImportance(ChildProcessImportance importance)745 void RenderWidgetHostImpl::SetImportance(ChildProcessImportance importance) {
746 if (importance_ == importance)
747 return;
748 importance_ = importance;
749 process_->UpdateClientPriority(this);
750 }
751
AddImeInputEventObserver(RenderWidgetHost::InputEventObserver * observer)752 void RenderWidgetHostImpl::AddImeInputEventObserver(
753 RenderWidgetHost::InputEventObserver* observer) {
754 if (!ime_input_event_observers_.HasObserver(observer)) {
755 ime_input_event_observers_.AddObserver(observer);
756 }
757 }
758
RemoveImeInputEventObserver(RenderWidgetHost::InputEventObserver * observer)759 void RenderWidgetHostImpl::RemoveImeInputEventObserver(
760 RenderWidgetHost::InputEventObserver* observer) {
761 ime_input_event_observers_.RemoveObserver(observer);
762 }
763 #endif
764
GetInitialVisualProperties()765 VisualProperties RenderWidgetHostImpl::GetInitialVisualProperties() {
766 VisualProperties initial_props = GetVisualProperties();
767
768 // A RenderWidget being created in the renderer means the browser should
769 // reset any state that may be set for the previous RenderWidget but which
770 // will be incorrect with a fresh RenderWidget.
771 ResetStateForCreatedRenderWidget(initial_props);
772
773 return initial_props;
774 }
775
GetVisualProperties()776 VisualProperties RenderWidgetHostImpl::GetVisualProperties() {
777 // This is only called while the RenderWidgetHost is attached to a delegate
778 // still.
779 DCHECK(delegate_);
780 // When the renderer process is gone, there's no need for VisualProperties
781 // which are to be sent to the renderer process.
782 DCHECK(view_);
783
784 VisualProperties visual_properties;
785
786 GetScreenInfo(&visual_properties.screen_info);
787
788 visual_properties.is_fullscreen_granted =
789 delegate_->IsFullscreenForCurrentTab();
790 visual_properties.display_mode = delegate_->GetDisplayMode(this);
791 visual_properties.zoom_level = delegate_->GetPendingPageZoomLevel();
792
793 RenderViewHostDelegateView* rvh_delegate_view = delegate_->GetDelegateView();
794 DCHECK(rvh_delegate_view);
795
796 visual_properties.browser_controls_params.browser_controls_shrink_blink_size =
797 rvh_delegate_view->DoBrowserControlsShrinkRendererSize();
798 visual_properties.browser_controls_params
799 .animate_browser_controls_height_changes =
800 rvh_delegate_view->ShouldAnimateBrowserControlsHeightChanges();
801
802 float top_controls_height = rvh_delegate_view->GetTopControlsHeight();
803 float top_controls_min_height = rvh_delegate_view->GetTopControlsMinHeight();
804 float bottom_controls_height = rvh_delegate_view->GetBottomControlsHeight();
805 float bottom_controls_min_height =
806 rvh_delegate_view->GetBottomControlsMinHeight();
807 float browser_controls_dsf_multiplier = 1.f;
808 // The top and bottom control sizes are physical pixels but the IPC wants
809 // DIPs *when not using page zoom for DSF* because blink layout is working
810 // in DIPs then.
811 if (!IsUseZoomForDSFEnabled()) {
812 browser_controls_dsf_multiplier =
813 visual_properties.screen_info.device_scale_factor;
814 }
815 visual_properties.browser_controls_params.top_controls_height =
816 top_controls_height / browser_controls_dsf_multiplier;
817 visual_properties.browser_controls_params.top_controls_min_height =
818 top_controls_min_height / browser_controls_dsf_multiplier;
819 visual_properties.browser_controls_params.bottom_controls_height =
820 bottom_controls_height / browser_controls_dsf_multiplier;
821 visual_properties.browser_controls_params.bottom_controls_min_height =
822 bottom_controls_min_height / browser_controls_dsf_multiplier;
823
824 visual_properties.auto_resize_enabled = auto_resize_enabled_;
825 visual_properties.min_size_for_auto_resize = min_size_for_auto_resize_;
826 visual_properties.max_size_for_auto_resize = max_size_for_auto_resize_;
827
828 visual_properties.new_size = view_->GetRequestedRendererSize();
829
830 // This widget is for a frame that is the main frame of the outermost frame
831 // tree. That makes it the top-most frame. OR this is a non-frame widget.
832 const bool is_top_most_widget = !view_->IsRenderWidgetHostViewChildFrame();
833 // This widget is for a frame, but not the main frame of its frame tree.
834 const bool is_child_frame_widget =
835 view_->IsRenderWidgetHostViewChildFrame() && !owner_delegate_;
836
837 // These properties come from the main frame RenderWidget and flow down the
838 // tree of RenderWidgets. Some properties are global across all nested
839 // WebContents/frame trees. Some properties are global only within their
840 // WebContents/frame tree.
841 //
842 // Each child frame RenderWidgetHost that inherits values gets them from their
843 // parent RenderWidget in the renderer process. It then passes them along to
844 // its own RenderWidget, and the process repeats down the tree.
845 //
846 // The plumbing goes:
847 // 1. Browser: parent RenderWidgetHost
848 // 2. IPC -> WidgetMsg_UpdateVisualProperties
849 // 3. Renderer A: parent RenderWidget
850 // (sometimes blink involved)
851 // 4. Renderer A: child RenderFrameProxy
852 // 5. IPC -> FrameHostMsg_SynchronizeVisualProperties
853 // 6. Browser: child CrossProcessFrameConnector
854 // 7. Browser: parent RenderWidgetHost (We're here if |is_child_frame|.)
855 // 8. IPC -> WidgetMsg_UpdateVisualProperties
856 // 9. Renderer B: child RenderWidget
857
858 // This property comes from the top-level main frame.
859 if (is_top_most_widget) {
860 visual_properties.compositor_viewport_pixel_rect =
861 gfx::Rect(view_->GetCompositorViewportPixelSize());
862 } else {
863 visual_properties.compositor_viewport_pixel_rect =
864 properties_from_parent_local_root_.compositor_viewport;
865 if (!IsUseZoomForDSFEnabled()) {
866 // If UseZoomForDSF is not used, the coordinates were not scaled by DSF
867 // when coming from the renderer.
868 visual_properties.compositor_viewport_pixel_rect =
869 gfx::ScaleToEnclosingRect(
870 visual_properties.compositor_viewport_pixel_rect,
871 visual_properties.screen_info.device_scale_factor);
872 }
873 }
874
875 // These properties come from the top-level main frame's renderer. The
876 // top-level main frame in the browser doesn't specify a value.
877 if (!is_top_most_widget) {
878 visual_properties.page_scale_factor =
879 properties_from_parent_local_root_.page_scale_factor;
880 visual_properties.is_pinch_gesture_active =
881 properties_from_parent_local_root_.is_pinch_gesture_active;
882 }
883
884 // The |visible_viewport_size| is affected by auto-resize which is magical and
885 // tricky.
886 //
887 // For the top-level main frame, auto resize ends up asynchronously resizing
888 // the widget's RenderWidgetHostView and the size will show up there, so
889 // nothing needs to be written in here.
890 //
891 // For nested main frames, auto resize happens in the renderer so we need to
892 // store the size on this class and use that. When auto-resize is not enabled
893 // we use the size of the nested main frame's RenderWidgetHostView.
894 //
895 // For child frames, we always use the value provided from the parent.
896 //
897 // For non-frame widgets, there is no auto-resize and we behave like the top-
898 // level main frame.
899 gfx::Size viewport;
900 if (is_child_frame_widget)
901 viewport = properties_from_parent_local_root_.visible_viewport_size;
902 else
903 viewport = view_->GetVisibleViewportSize();
904 visual_properties.visible_viewport_size = viewport;
905
906 visual_properties.capture_sequence_number = view_->GetCaptureSequenceNumber();
907
908 // TODO(ccameron): GetLocalSurfaceId is not synchronized with the device
909 // scale factor of the surface. Fix this.
910 viz::LocalSurfaceIdAllocation local_surface_id_allocation =
911 view_->GetLocalSurfaceIdAllocation();
912 if (local_surface_id_allocation.IsValid()) {
913 visual_properties.local_surface_id_allocation = local_surface_id_allocation;
914 }
915
916 if (screen_orientation_type_for_testing_) {
917 visual_properties.screen_info.orientation_type =
918 *screen_orientation_type_for_testing_;
919 }
920
921 if (screen_orientation_angle_for_testing_) {
922 visual_properties.screen_info.orientation_angle =
923 *screen_orientation_angle_for_testing_;
924 }
925
926 return visual_properties;
927 }
928
SynchronizeVisualProperties()929 bool RenderWidgetHostImpl::SynchronizeVisualProperties() {
930 return SynchronizeVisualProperties(false);
931 }
932
SynchronizeVisualPropertiesIgnoringPendingAck()933 void RenderWidgetHostImpl::SynchronizeVisualPropertiesIgnoringPendingAck() {
934 visual_properties_ack_pending_ = false;
935 SynchronizeVisualProperties();
936 }
937
SynchronizeVisualProperties(bool scroll_focused_node_into_view)938 bool RenderWidgetHostImpl::SynchronizeVisualProperties(
939 bool scroll_focused_node_into_view) {
940 // If the RenderViewHost is inactive, then there is no RenderWidget that can
941 // receive visual properties yet, even though we are setting them on the
942 // browser side. Wait until there is a local main frame with a RenderWidget
943 // to receive these before sending the visual properties.
944 //
945 // When the RenderViewHost becomes active, a SynchronizeVisualProperties()
946 // call does not explicitly get made. That is because RenderWidgets for frames
947 // are created and initialized with a valid VisualProperties already, and once
948 // their initial navigation completes (and they are in the foreground) the
949 // RenderWidget will be shown, which means a VisualProperties update happens
950 // at the time where compositing begins.
951 //
952 // Note that this drops |scroll_focused_node_into_view| but this value does
953 // not make sense for an inactive RenderViewHost's top level RenderWidgetHost,
954 // because there is no frames associated with the RenderWidget when it is
955 // inactive, so there is no focused node, or anything to scroll and display.
956 if (owner_delegate_ && !owner_delegate_->IsMainFrameActive())
957 return false;
958 // This is similar to the above but when the renderer process has crashed, so
959 // more objects are gone than the RenderWidget.
960 if (!renderer_initialized_)
961 return false;
962
963 // Skip if the |delegate_| has already been detached because it's web contents
964 // is being deleted, or if LocalSurfaceIdAllocation is suppressed, as we are
965 // first updating our internal state from a child's request, before
966 // subsequently merging ids to send.
967 if (visual_properties_ack_pending_ || !process_->IsInitializedAndNotDead() ||
968 !view_ || !view_->HasSize() || !delegate_ ||
969 surface_id_allocation_suppressed_ ||
970 !view_->CanSynchronizeVisualProperties()) {
971 return false;
972 }
973
974 auto visual_properties = std::make_unique<VisualProperties>();
975 *visual_properties = GetVisualProperties();
976 if (!StoredVisualPropertiesNeedsUpdate(old_visual_properties_,
977 *visual_properties))
978 return false;
979
980 visual_properties->scroll_focused_node_into_view =
981 scroll_focused_node_into_view;
982
983 Send(new WidgetMsg_UpdateVisualProperties(routing_id_, *visual_properties));
984
985 bool width_changed =
986 !old_visual_properties_ || old_visual_properties_->new_size.width() !=
987 visual_properties->new_size.width();
988
989 // This is copied from RenderWidget::UpdateSurfaceAndScreenInfo and used to
990 // detect if there is a screen orientation change.
991 // TODO(lanwei): clean the duplicate code.
992 if (visual_properties && old_visual_properties_) {
993 bool orientation_changed =
994 old_visual_properties_->screen_info.orientation_angle !=
995 visual_properties->screen_info.orientation_angle ||
996 old_visual_properties_->screen_info.orientation_type !=
997 visual_properties->screen_info.orientation_type;
998 if (orientation_changed)
999 delegate_->DidChangeScreenOrientation();
1000 }
1001
1002 TRACE_EVENT_WITH_FLOW2(
1003 TRACE_DISABLED_BY_DEFAULT("viz.surface_id_flow"),
1004 "RenderWidgetHostImpl::SynchronizeVisualProperties send message",
1005 visual_properties->local_surface_id_allocation
1006 .value_or(viz::LocalSurfaceIdAllocation())
1007 .local_surface_id()
1008 .submission_trace_id(),
1009 TRACE_EVENT_FLAG_FLOW_OUT, "message",
1010 "WidgetMsg_SynchronizeVisualProperties", "local_surface_id",
1011 visual_properties->local_surface_id_allocation
1012 .value_or(viz::LocalSurfaceIdAllocation())
1013 .local_surface_id()
1014 .ToString());
1015 visual_properties_ack_pending_ =
1016 DoesVisualPropertiesNeedAck(old_visual_properties_, *visual_properties);
1017 old_visual_properties_ = std::move(visual_properties);
1018
1019 // Warning: |visual_properties| invalid after this point.
1020
1021 if (delegate_) {
1022 delegate_->RenderWidgetWasResized(this, width_changed);
1023 }
1024
1025 return true;
1026 }
1027
GotFocus()1028 void RenderWidgetHostImpl::GotFocus() {
1029 Focus();
1030 if (owner_delegate_)
1031 owner_delegate_->RenderWidgetGotFocus();
1032 if (delegate_)
1033 delegate_->RenderWidgetGotFocus(this);
1034 }
1035
LostFocus()1036 void RenderWidgetHostImpl::LostFocus() {
1037 Blur();
1038 if (owner_delegate_)
1039 owner_delegate_->RenderWidgetLostFocus();
1040 if (delegate_)
1041 delegate_->RenderWidgetLostFocus(this);
1042 }
1043
Focus()1044 void RenderWidgetHostImpl::Focus() {
1045 RenderWidgetHostImpl* focused_widget =
1046 delegate_ ? delegate_->GetRenderWidgetHostWithPageFocus() : nullptr;
1047
1048 if (!focused_widget)
1049 focused_widget = this;
1050 focused_widget->SetPageFocus(true);
1051 }
1052
Blur()1053 void RenderWidgetHostImpl::Blur() {
1054 RenderWidgetHostImpl* focused_widget =
1055 delegate_ ? delegate_->GetRenderWidgetHostWithPageFocus() : nullptr;
1056
1057 if (!focused_widget)
1058 focused_widget = this;
1059 focused_widget->SetPageFocus(false);
1060 }
1061
FlushForTesting()1062 void RenderWidgetHostImpl::FlushForTesting() {
1063 if (associated_widget_input_handler_)
1064 return associated_widget_input_handler_.FlushForTesting();
1065 if (widget_input_handler_)
1066 return widget_input_handler_.FlushForTesting();
1067 }
1068
SetPageFocus(bool focused)1069 void RenderWidgetHostImpl::SetPageFocus(bool focused) {
1070 is_focused_ = focused;
1071
1072 // Portals should never get page focus.
1073 DCHECK(!delegate_ || !delegate_->IsPortal() || !focused);
1074
1075 if (!focused) {
1076 // If there is a pending mouse lock request, we don't want to reject it at
1077 // this point. The user can switch focus back to this view and approve the
1078 // request later.
1079 if (IsMouseLocked())
1080 view_->UnlockMouse();
1081
1082 if (IsKeyboardLocked())
1083 UnlockKeyboard();
1084
1085 if (auto* touch_emulator = GetExistingTouchEmulator())
1086 touch_emulator->CancelTouch();
1087 } else if (keyboard_lock_allowed_) {
1088 LockKeyboard();
1089 }
1090
1091 GetWidgetInputHandler()->SetFocus(focused);
1092
1093 // Also send page-level focus state to other SiteInstances involved in
1094 // rendering the current FrameTree, if this widget is for a main frame.
1095 if (owner_delegate_ && delegate_)
1096 delegate_->ReplicatePageFocus(focused);
1097 }
1098
LostCapture()1099 void RenderWidgetHostImpl::LostCapture() {
1100 if (auto* touch_emulator = GetExistingTouchEmulator())
1101 touch_emulator->CancelTouch();
1102
1103 GetWidgetInputHandler()->MouseCaptureLost();
1104
1105 if (delegate_)
1106 delegate_->LostCapture(this);
1107 }
1108
SetActive(bool active)1109 void RenderWidgetHostImpl::SetActive(bool active) {
1110 Send(new WidgetMsg_SetActive(routing_id_, active));
1111 }
1112
LostMouseLock()1113 void RenderWidgetHostImpl::LostMouseLock() {
1114 if (delegate_)
1115 delegate_->LostMouseLock(this);
1116 }
1117
SendMouseLockLost()1118 void RenderWidgetHostImpl::SendMouseLockLost() {
1119 widget_input_handler_->MouseLockLost();
1120 }
1121
ViewDestroyed()1122 void RenderWidgetHostImpl::ViewDestroyed() {
1123 CancelKeyboardLock();
1124 RejectMouseLockOrUnlockIfNecessary(
1125 blink::mojom::PointerLockResult::kElementDestroyed);
1126
1127 // TODO(evanm): tracking this may no longer be necessary;
1128 // eliminate this function if so.
1129 SetView(nullptr);
1130 }
1131
RequestRepaintForTesting()1132 bool RenderWidgetHostImpl::RequestRepaintForTesting() {
1133 if (!view_)
1134 return false;
1135
1136 return view_->RequestRepaintForTesting();
1137 }
1138
RenderProcessBlockedStateChanged(bool blocked)1139 void RenderWidgetHostImpl::RenderProcessBlockedStateChanged(bool blocked) {
1140 if (blocked)
1141 StopInputEventAckTimeout();
1142 else
1143 RestartInputEventAckTimeoutIfNecessary();
1144 }
1145
StartInputEventAckTimeout()1146 void RenderWidgetHostImpl::StartInputEventAckTimeout() {
1147 if (ShouldDisableHangMonitor())
1148 return;
1149
1150 if (!input_event_ack_timeout_.IsRunning()) {
1151 input_event_ack_timeout_.Start(
1152 FROM_HERE, hung_renderer_delay_,
1153 base::BindOnce(&RenderWidgetHostImpl::OnInputEventAckTimeout,
1154 weak_factory_.GetWeakPtr()));
1155 input_event_ack_start_time_ = clock_->NowTicks();
1156 }
1157 }
1158
RestartInputEventAckTimeoutIfNecessary()1159 void RenderWidgetHostImpl::RestartInputEventAckTimeoutIfNecessary() {
1160 if (!GetProcess()->IsBlocked() && !ShouldDisableHangMonitor() &&
1161 in_flight_event_count_ > 0 && !is_hidden_) {
1162 input_event_ack_timeout_.Start(
1163 FROM_HERE, hung_renderer_delay_,
1164 base::BindOnce(&RenderWidgetHostImpl::OnInputEventAckTimeout,
1165 weak_factory_.GetWeakPtr()));
1166 }
1167 }
1168
IsCurrentlyUnresponsive()1169 bool RenderWidgetHostImpl::IsCurrentlyUnresponsive() {
1170 return is_unresponsive_;
1171 }
1172
StopInputEventAckTimeout()1173 void RenderWidgetHostImpl::StopInputEventAckTimeout() {
1174 input_event_ack_timeout_.Stop();
1175
1176 if (!input_event_ack_start_time_.is_null()) {
1177 base::TimeDelta elapsed = clock_->NowTicks() - input_event_ack_start_time_;
1178 const base::TimeDelta kMinimumHangTimeToReport =
1179 base::TimeDelta::FromSeconds(5);
1180 if (elapsed >= kMinimumHangTimeToReport)
1181 UMA_HISTOGRAM_LONG_TIMES("Renderer.Hung.Duration", elapsed);
1182
1183 input_event_ack_start_time_ = TimeTicks();
1184 }
1185 RendererIsResponsive();
1186 }
1187
DidNavigate()1188 void RenderWidgetHostImpl::DidNavigate() {
1189 // Stop the flinging after navigating to a new page.
1190 StopFling();
1191
1192 // Resize messages before navigation are not acked, so reset
1193 // |visual_properties_ack_pending_| and make sure the next resize will be
1194 // acked if the last resize before navigation was supposed to be acked.
1195 visual_properties_ack_pending_ = false;
1196 if (view_)
1197 view_->DidNavigate();
1198
1199 if (!new_content_rendering_timeout_)
1200 return;
1201
1202 new_content_rendering_timeout_->Start(new_content_rendering_delay_);
1203
1204 ClearPendingUserActivation();
1205 }
1206
ForwardMouseEvent(const WebMouseEvent & mouse_event)1207 void RenderWidgetHostImpl::ForwardMouseEvent(const WebMouseEvent& mouse_event) {
1208 // VrController moves the pointer during the scrolling and fling. To ensure
1209 // that scroll performance is not affected we drop mouse events during
1210 // scroll/fling.
1211 if (GetView()->IsInVR() && (is_in_gesture_scroll_[static_cast<int>(
1212 blink::WebGestureDevice::kTouchpad)] ||
1213 is_in_touchpad_gesture_fling_)) {
1214 return;
1215 }
1216
1217 ForwardMouseEventWithLatencyInfo(mouse_event,
1218 ui::LatencyInfo(ui::SourceEventType::MOUSE));
1219 if (owner_delegate_)
1220 owner_delegate_->RenderWidgetDidForwardMouseEvent(mouse_event);
1221 }
1222
ForwardMouseEventWithLatencyInfo(const blink::WebMouseEvent & mouse_event,const ui::LatencyInfo & latency)1223 void RenderWidgetHostImpl::ForwardMouseEventWithLatencyInfo(
1224 const blink::WebMouseEvent& mouse_event,
1225 const ui::LatencyInfo& latency) {
1226 TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardMouseEvent", "x",
1227 mouse_event.PositionInWidget().x(), "y",
1228 mouse_event.PositionInWidget().y());
1229
1230 DCHECK_GE(mouse_event.GetType(), blink::WebInputEvent::kMouseTypeFirst);
1231 DCHECK_LE(mouse_event.GetType(), blink::WebInputEvent::kMouseTypeLast);
1232
1233 for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
1234 if (mouse_event_callbacks_[i].Run(mouse_event))
1235 return;
1236 }
1237
1238 if (IsIgnoringInputEvents())
1239 return;
1240
1241 // Delegate must be non-null, due to |IsIgnoringInputEvents()| test.
1242 if (delegate_->PreHandleMouseEvent(mouse_event))
1243 return;
1244
1245 auto* touch_emulator = GetExistingTouchEmulator();
1246 if (touch_emulator &&
1247 touch_emulator->HandleMouseEvent(mouse_event, GetView())) {
1248 return;
1249 }
1250
1251 MouseEventWithLatencyInfo mouse_with_latency(mouse_event, latency);
1252 DispatchInputEventWithLatencyInfo(mouse_event, &mouse_with_latency.latency);
1253 input_router_->SendMouseEvent(
1254 mouse_with_latency, base::BindOnce(&RenderWidgetHostImpl::OnMouseEventAck,
1255 weak_factory_.GetWeakPtr()));
1256 }
1257
ForwardWheelEvent(const WebMouseWheelEvent & wheel_event)1258 void RenderWidgetHostImpl::ForwardWheelEvent(
1259 const WebMouseWheelEvent& wheel_event) {
1260 ForwardWheelEventWithLatencyInfo(wheel_event,
1261 ui::LatencyInfo(ui::SourceEventType::WHEEL));
1262 }
1263
ForwardWheelEventWithLatencyInfo(const blink::WebMouseWheelEvent & wheel_event,const ui::LatencyInfo & latency)1264 void RenderWidgetHostImpl::ForwardWheelEventWithLatencyInfo(
1265 const blink::WebMouseWheelEvent& wheel_event,
1266 const ui::LatencyInfo& latency) {
1267 TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardWheelEvent", "dx",
1268 wheel_event.delta_x, "dy", wheel_event.delta_y);
1269
1270 if (IsIgnoringInputEvents())
1271 return;
1272
1273 auto* touch_emulator = GetExistingTouchEmulator();
1274 if (touch_emulator && touch_emulator->HandleMouseWheelEvent(wheel_event))
1275 return;
1276
1277 MouseWheelEventWithLatencyInfo wheel_with_latency(wheel_event, latency);
1278 DispatchInputEventWithLatencyInfo(wheel_event, &wheel_with_latency.latency);
1279 input_router_->SendWheelEvent(wheel_with_latency);
1280 }
1281
WaitForInputProcessed(SyntheticGestureParams::GestureType type,SyntheticGestureParams::GestureSourceType source,base::OnceClosure callback)1282 void RenderWidgetHostImpl::WaitForInputProcessed(
1283 SyntheticGestureParams::GestureType type,
1284 SyntheticGestureParams::GestureSourceType source,
1285 base::OnceClosure callback) {
1286 // TODO(bokan): Input can be queued and delayed in InputRouterImpl based on
1287 // the kind of events we're getting. To be truly robust, we should wait until
1288 // those queues are flushed before issuing this message. This will be done in
1289 // a follow-up and is the reason for the currently unused type and source
1290 // params. https://crbug.com/902446.
1291 WaitForInputProcessed(std::move(callback));
1292 }
1293
WaitForInputProcessed(base::OnceClosure callback)1294 void RenderWidgetHostImpl::WaitForInputProcessed(base::OnceClosure callback) {
1295 // TODO(bokan): The RequestPresentationCallback mechanism doesn't seem to
1296 // work in OOPIFs. For now, just callback immediately. Remove when fixed.
1297 // https://crbug.com/924646.
1298 if (GetView()->IsRenderWidgetHostViewChildFrame()) {
1299 std::move(callback).Run();
1300 return;
1301 }
1302
1303 input_router_->WaitForInputProcessed(std::move(callback));
1304 }
1305
ForwardGestureEvent(const blink::WebGestureEvent & gesture_event)1306 void RenderWidgetHostImpl::ForwardGestureEvent(
1307 const blink::WebGestureEvent& gesture_event) {
1308 ForwardGestureEventWithLatencyInfo(
1309 gesture_event,
1310 ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
1311 gesture_event));
1312 }
1313
ForwardGestureEventWithLatencyInfo(const blink::WebGestureEvent & gesture_event,const ui::LatencyInfo & latency)1314 void RenderWidgetHostImpl::ForwardGestureEventWithLatencyInfo(
1315 const blink::WebGestureEvent& gesture_event,
1316 const ui::LatencyInfo& latency) {
1317 TRACE_EVENT1("input", "RenderWidgetHostImpl::ForwardGestureEvent", "type",
1318 WebInputEvent::GetName(gesture_event.GetType()));
1319 // Early out if necessary, prior to performing latency logic.
1320 if (IsIgnoringInputEvents())
1321 return;
1322
1323 // The gesture events must have a known source.
1324 DCHECK_NE(gesture_event.SourceDevice(),
1325 blink::WebGestureDevice::kUninitialized);
1326
1327 if (gesture_event.GetType() == blink::WebInputEvent::kGestureScrollBegin) {
1328 DCHECK(
1329 !is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())]);
1330 is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())] =
1331 true;
1332 scroll_peak_gpu_mem_tracker_ =
1333 PeakGpuMemoryTracker::Create(PeakGpuMemoryTracker::Usage::SCROLL);
1334 } else if (gesture_event.GetType() ==
1335 blink::WebInputEvent::kGestureScrollEnd) {
1336 DCHECK(
1337 is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())]);
1338 is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())] =
1339 false;
1340 is_in_touchpad_gesture_fling_ = false;
1341 if (view_) {
1342 if (scroll_peak_gpu_mem_tracker_ &&
1343 !view_->is_currently_scrolling_viewport()) {
1344 // We start tracking peak gpu-memory usage when the initial scroll-begin
1345 // is dispatched. However, it is possible that the scroll-begin did not
1346 // trigger any scrolls (e.g. the page is not scrollable). In such cases,
1347 // we do not want to report the peak-memory usage metric. So it is
1348 // canceled here.
1349 scroll_peak_gpu_mem_tracker_->Cancel();
1350 }
1351
1352 view_->set_is_currently_scrolling_viewport(false);
1353 }
1354 scroll_peak_gpu_mem_tracker_ = nullptr;
1355 } else if (gesture_event.GetType() ==
1356 blink::WebInputEvent::kGestureFlingStart) {
1357 if (gesture_event.SourceDevice() == blink::WebGestureDevice::kTouchpad) {
1358 // TODO(sahel): Remove the VR specific case when motion events are used
1359 // for Android VR event processing and VR touchpad scrolling is handled by
1360 // sending wheel events rather than directly injecting Gesture Scroll
1361 // Events. https://crbug.com/797322
1362 if (GetView()->IsInVR()) {
1363 // Regardless of the state of the wheel scroll latching
1364 // WebContentsEventForwarder doesn't inject any GSE events before GFS.
1365 DCHECK(is_in_gesture_scroll_[static_cast<int>(
1366 gesture_event.SourceDevice())]);
1367
1368 // Reset the is_in_gesture_scroll since while scrolling in Android VR
1369 // the first wheel event sent by the FlingController will cause a GSB
1370 // generation in MouseWheelEventQueue. This is because GSU events before
1371 // the GFS are directly injected to RWHI rather than being generated
1372 // from wheel events in MouseWheelEventQueue.
1373 is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())] =
1374 false;
1375 }
1376 // a GSB event is generated from the first wheel event in a sequence after
1377 // the event is acked as not consumed by the renderer. Sometimes when the
1378 // main thread is busy/slow (e.g ChromeOS debug builds) a GFS arrives
1379 // before the first wheel is acked. In these cases no GSB will arrive
1380 // before the GFS. With browser side fling the out of order GFS arrival
1381 // does not need a DCHECK since the fling controller will process the GFS
1382 // and start queuing wheel events which will follow the one currently
1383 // awaiting ACK and the renderer receives the events in order.
1384
1385 is_in_touchpad_gesture_fling_ = true;
1386 } else {
1387 DCHECK(is_in_gesture_scroll_[static_cast<int>(
1388 gesture_event.SourceDevice())]);
1389
1390 // The FlingController handles GFS with touchscreen source and sends GSU
1391 // events with inertial state to the renderer to progress the fling.
1392 // is_in_gesture_scroll must stay true till the fling progress is
1393 // finished. Then the FlingController will generate and send a GSE which
1394 // shows the end of a scroll sequence and resets is_in_gesture_scroll_.
1395 }
1396 }
1397
1398 // Delegate must be non-null, due to |IsIgnoringInputEvents()| test.
1399 if (delegate_->PreHandleGestureEvent(gesture_event))
1400 return;
1401
1402 GestureEventWithLatencyInfo gesture_with_latency(gesture_event, latency);
1403 DispatchInputEventWithLatencyInfo(gesture_event,
1404 &gesture_with_latency.latency);
1405 input_router_->SendGestureEvent(gesture_with_latency);
1406 }
1407
ForwardTouchEventWithLatencyInfo(const blink::WebTouchEvent & touch_event,const ui::LatencyInfo & latency)1408 void RenderWidgetHostImpl::ForwardTouchEventWithLatencyInfo(
1409 const blink::WebTouchEvent& touch_event,
1410 const ui::LatencyInfo& latency) {
1411 TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardTouchEvent");
1412
1413 // Always forward TouchEvents for touch stream consistency. They will be
1414 // ignored if appropriate in FilterInputEvent().
1415
1416 TouchEventWithLatencyInfo touch_with_latency(touch_event, latency);
1417 DispatchInputEventWithLatencyInfo(touch_event, &touch_with_latency.latency);
1418 input_router_->SendTouchEvent(touch_with_latency);
1419 }
1420
ForwardKeyboardEvent(const NativeWebKeyboardEvent & key_event)1421 void RenderWidgetHostImpl::ForwardKeyboardEvent(
1422 const NativeWebKeyboardEvent& key_event) {
1423 ui::LatencyInfo latency_info;
1424
1425 if (key_event.GetType() == WebInputEvent::kRawKeyDown ||
1426 key_event.GetType() == WebInputEvent::kChar) {
1427 latency_info.set_source_event_type(ui::SourceEventType::KEY_PRESS);
1428 }
1429 ForwardKeyboardEventWithLatencyInfo(key_event, latency_info);
1430 }
1431
ForwardKeyboardEventWithLatencyInfo(const NativeWebKeyboardEvent & key_event,const ui::LatencyInfo & latency)1432 void RenderWidgetHostImpl::ForwardKeyboardEventWithLatencyInfo(
1433 const NativeWebKeyboardEvent& key_event,
1434 const ui::LatencyInfo& latency) {
1435 ForwardKeyboardEventWithCommands(key_event, latency, nullptr, nullptr);
1436 }
1437
ForwardKeyboardEventWithCommands(const NativeWebKeyboardEvent & key_event,const ui::LatencyInfo & latency,const std::vector<EditCommand> * commands,bool * update_event)1438 void RenderWidgetHostImpl::ForwardKeyboardEventWithCommands(
1439 const NativeWebKeyboardEvent& key_event,
1440 const ui::LatencyInfo& latency,
1441 const std::vector<EditCommand>* commands,
1442 bool* update_event) {
1443 DCHECK(WebInputEvent::IsKeyboardEventType(key_event.GetType()));
1444
1445 TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardKeyboardEvent");
1446 if (owner_delegate_ &&
1447 !owner_delegate_->MayRenderWidgetForwardKeyboardEvent(key_event)) {
1448 return;
1449 }
1450
1451 if (IsIgnoringInputEvents())
1452 return;
1453
1454 if (!process_->IsInitializedAndNotDead())
1455 return;
1456
1457 // First, let keypress listeners take a shot at handling the event. If a
1458 // listener handles the event, it should not be propagated to the renderer.
1459 if (KeyPressListenersHandleEvent(key_event)) {
1460 // Some keypresses that are accepted by the listener may be followed by Char
1461 // and KeyUp events, which should be ignored.
1462 if (key_event.GetType() == WebKeyboardEvent::kRawKeyDown)
1463 suppress_events_until_keydown_ = true;
1464 return;
1465 }
1466
1467 if (suppress_events_until_keydown_) {
1468 // If the preceding RawKeyDown event was handled by the browser, then we
1469 // need to suppress all events generated by it until the next RawKeyDown or
1470 // KeyDown event.
1471 if (key_event.GetType() == WebKeyboardEvent::kKeyUp ||
1472 key_event.GetType() == WebKeyboardEvent::kChar)
1473 return;
1474 DCHECK(key_event.GetType() == WebKeyboardEvent::kRawKeyDown ||
1475 key_event.GetType() == WebKeyboardEvent::kKeyDown);
1476 suppress_events_until_keydown_ = false;
1477 }
1478
1479 bool is_shortcut = false;
1480
1481 // Only pre-handle the key event if it's not handled by the input method.
1482 if (delegate_ && !key_event.skip_in_browser) {
1483 // We need to set |suppress_events_until_keydown_| to true if
1484 // PreHandleKeyboardEvent() handles the event, but |this| may already be
1485 // destroyed at that time. So set |suppress_events_until_keydown_| true
1486 // here, then revert it afterwards when necessary.
1487 if (key_event.GetType() == WebKeyboardEvent::kRawKeyDown)
1488 suppress_events_until_keydown_ = true;
1489
1490 // Tab switching/closing accelerators aren't sent to the renderer to avoid
1491 // a hung/malicious renderer from interfering.
1492 switch (delegate_->PreHandleKeyboardEvent(key_event)) {
1493 case KeyboardEventProcessingResult::HANDLED:
1494 return;
1495 #if defined(USE_AURA)
1496 case KeyboardEventProcessingResult::HANDLED_DONT_UPDATE_EVENT:
1497 if (update_event)
1498 *update_event = false;
1499 return;
1500 #endif
1501 case KeyboardEventProcessingResult::NOT_HANDLED:
1502 break;
1503 case KeyboardEventProcessingResult::NOT_HANDLED_IS_SHORTCUT:
1504 is_shortcut = true;
1505 break;
1506 }
1507
1508 if (key_event.GetType() == WebKeyboardEvent::kRawKeyDown)
1509 suppress_events_until_keydown_ = false;
1510 }
1511
1512 auto* touch_emulator = GetExistingTouchEmulator();
1513 if (touch_emulator && touch_emulator->HandleKeyboardEvent(key_event))
1514 return;
1515 NativeWebKeyboardEventWithLatencyInfo key_event_with_latency(key_event,
1516 latency);
1517 key_event_with_latency.event.is_browser_shortcut = is_shortcut;
1518 DispatchInputEventWithLatencyInfo(key_event, &key_event_with_latency.latency);
1519 // TODO(foolip): |InputRouter::SendKeyboardEvent()| may filter events, in
1520 // which the commands will be treated as belonging to the next key event.
1521 // WidgetInputHandler::SetEditCommandsForNextKeyEvent should only be sent if
1522 // WidgetInputHandler::DispatchEvent is, but has to be sent first.
1523 // https://crbug.com/684298
1524 if (commands && !commands->empty())
1525 GetWidgetInputHandler()->SetEditCommandsForNextKeyEvent(*commands);
1526
1527 input_router_->SendKeyboardEvent(
1528 key_event_with_latency,
1529 base::BindOnce(&RenderWidgetHostImpl::OnKeyboardEventAck,
1530 weak_factory_.GetWeakPtr()));
1531 }
1532
CreateSyntheticGestureControllerIfNecessary()1533 void RenderWidgetHostImpl::CreateSyntheticGestureControllerIfNecessary() {
1534 if (!synthetic_gesture_controller_ && view_) {
1535 synthetic_gesture_controller_ =
1536 std::make_unique<SyntheticGestureController>(
1537 this, view_->CreateSyntheticGestureTarget());
1538 }
1539 }
1540
QueueSyntheticGesture(std::unique_ptr<SyntheticGesture> synthetic_gesture,base::OnceCallback<void (SyntheticGesture::Result)> on_complete)1541 void RenderWidgetHostImpl::QueueSyntheticGesture(
1542 std::unique_ptr<SyntheticGesture> synthetic_gesture,
1543 base::OnceCallback<void(SyntheticGesture::Result)> on_complete) {
1544 CreateSyntheticGestureControllerIfNecessary();
1545 if (synthetic_gesture_controller_) {
1546 synthetic_gesture_controller_->QueueSyntheticGesture(
1547 std::move(synthetic_gesture), std::move(on_complete));
1548 }
1549 }
1550
QueueSyntheticGestureCompleteImmediately(std::unique_ptr<SyntheticGesture> synthetic_gesture)1551 void RenderWidgetHostImpl::QueueSyntheticGestureCompleteImmediately(
1552 std::unique_ptr<SyntheticGesture> synthetic_gesture) {
1553 CreateSyntheticGestureControllerIfNecessary();
1554 if (synthetic_gesture_controller_) {
1555 synthetic_gesture_controller_->QueueSyntheticGestureCompleteImmediately(
1556 std::move(synthetic_gesture));
1557 }
1558 }
1559
EnsureReadyForSyntheticGestures(base::OnceClosure on_ready)1560 void RenderWidgetHostImpl::EnsureReadyForSyntheticGestures(
1561 base::OnceClosure on_ready) {
1562 CreateSyntheticGestureControllerIfNecessary();
1563 if (synthetic_gesture_controller_) {
1564 synthetic_gesture_controller_->EnsureRendererInitialized(
1565 std::move(on_ready));
1566 } else {
1567 // If we couldn't create a SyntheticGestureController then we won't ever be
1568 // ready. Invoke the callback to unblock the calling code.
1569 std::move(on_ready).Run();
1570 }
1571 }
1572
TakeSyntheticGestureController(RenderWidgetHostImpl * host)1573 void RenderWidgetHostImpl::TakeSyntheticGestureController(
1574 RenderWidgetHostImpl* host) {
1575 DCHECK(!synthetic_gesture_controller_);
1576 if (host->synthetic_gesture_controller_) {
1577 synthetic_gesture_controller_ =
1578 std::move(host->synthetic_gesture_controller_);
1579 synthetic_gesture_controller_->UpdateSyntheticGestureTarget(
1580 view_->CreateSyntheticGestureTarget(), this);
1581 }
1582 }
1583
SetCursor(const WebCursor & cursor)1584 void RenderWidgetHostImpl::SetCursor(const WebCursor& cursor) {
1585 if (!view_)
1586 return;
1587 view_->UpdateCursor(cursor);
1588 }
1589
ShowContextMenuAtPoint(const gfx::Point & point,const ui::MenuSourceType source_type)1590 void RenderWidgetHostImpl::ShowContextMenuAtPoint(
1591 const gfx::Point& point,
1592 const ui::MenuSourceType source_type) {
1593 Send(new WidgetMsg_ShowContextMenu(GetRoutingID(), source_type, point));
1594 }
1595
OnCursorVisibilityStateChanged(bool is_visible)1596 void RenderWidgetHostImpl::OnCursorVisibilityStateChanged(bool is_visible) {
1597 GetWidgetInputHandler()->CursorVisibilityChanged(is_visible);
1598 }
1599
OnFallbackCursorModeToggled(bool is_on)1600 void RenderWidgetHostImpl::OnFallbackCursorModeToggled(bool is_on) {
1601 GetWidgetInputHandler()->FallbackCursorModeToggled(is_on);
1602 }
1603
1604 // static
DisableResizeAckCheckForTesting()1605 void RenderWidgetHostImpl::DisableResizeAckCheckForTesting() {
1606 g_check_for_pending_visual_properties_ack = false;
1607 }
1608
AddKeyPressEventCallback(const KeyPressEventCallback & callback)1609 void RenderWidgetHostImpl::AddKeyPressEventCallback(
1610 const KeyPressEventCallback& callback) {
1611 key_press_event_callbacks_.push_back(callback);
1612 }
1613
RemoveKeyPressEventCallback(const KeyPressEventCallback & callback)1614 void RenderWidgetHostImpl::RemoveKeyPressEventCallback(
1615 const KeyPressEventCallback& callback) {
1616 for (size_t i = 0; i < key_press_event_callbacks_.size(); ++i) {
1617 if (key_press_event_callbacks_[i] == callback) {
1618 key_press_event_callbacks_.erase(
1619 key_press_event_callbacks_.begin() + i);
1620 return;
1621 }
1622 }
1623 }
1624
AddMouseEventCallback(const MouseEventCallback & callback)1625 void RenderWidgetHostImpl::AddMouseEventCallback(
1626 const MouseEventCallback& callback) {
1627 mouse_event_callbacks_.push_back(callback);
1628 }
1629
RemoveMouseEventCallback(const MouseEventCallback & callback)1630 void RenderWidgetHostImpl::RemoveMouseEventCallback(
1631 const MouseEventCallback& callback) {
1632 for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
1633 if (mouse_event_callbacks_[i] == callback) {
1634 mouse_event_callbacks_.erase(mouse_event_callbacks_.begin() + i);
1635 return;
1636 }
1637 }
1638 }
1639
AddInputEventObserver(RenderWidgetHost::InputEventObserver * observer)1640 void RenderWidgetHostImpl::AddInputEventObserver(
1641 RenderWidgetHost::InputEventObserver* observer) {
1642 if (!input_event_observers_.HasObserver(observer))
1643 input_event_observers_.AddObserver(observer);
1644 }
1645
RemoveInputEventObserver(RenderWidgetHost::InputEventObserver * observer)1646 void RenderWidgetHostImpl::RemoveInputEventObserver(
1647 RenderWidgetHost::InputEventObserver* observer) {
1648 input_event_observers_.RemoveObserver(observer);
1649 }
1650
AddObserver(RenderWidgetHostObserver * observer)1651 void RenderWidgetHostImpl::AddObserver(RenderWidgetHostObserver* observer) {
1652 observers_.AddObserver(observer);
1653 }
1654
RemoveObserver(RenderWidgetHostObserver * observer)1655 void RenderWidgetHostImpl::RemoveObserver(RenderWidgetHostObserver* observer) {
1656 observers_.RemoveObserver(observer);
1657 }
1658
GetScreenInfo(ScreenInfo * result)1659 void RenderWidgetHostImpl::GetScreenInfo(ScreenInfo* result) {
1660 TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::GetScreenInfo");
1661 if (view_)
1662 view_->GetScreenInfo(result);
1663 else
1664 DisplayUtil::GetDefaultScreenInfo(result);
1665
1666 if (display::Display::HasForceRasterColorProfile())
1667 result->color_space = display::Display::GetForcedRasterColorProfile();
1668
1669 // TODO(sievers): find a way to make this done another way so the method
1670 // can be const.
1671 if (IsUseZoomForDSFEnabled())
1672 input_router_->SetDeviceScaleFactor(result->device_scale_factor);
1673 }
1674
DragTargetDragEnter(const DropData & drop_data,const gfx::PointF & client_pt,const gfx::PointF & screen_pt,WebDragOperationsMask operations_allowed,int key_modifiers)1675 void RenderWidgetHostImpl::DragTargetDragEnter(
1676 const DropData& drop_data,
1677 const gfx::PointF& client_pt,
1678 const gfx::PointF& screen_pt,
1679 WebDragOperationsMask operations_allowed,
1680 int key_modifiers) {
1681 DragTargetDragEnterWithMetaData(DropDataToMetaData(drop_data), client_pt,
1682 screen_pt, operations_allowed, key_modifiers);
1683 }
1684
DragTargetDragEnterWithMetaData(const std::vector<DropData::Metadata> & metadata,const gfx::PointF & client_pt,const gfx::PointF & screen_pt,WebDragOperationsMask operations_allowed,int key_modifiers)1685 void RenderWidgetHostImpl::DragTargetDragEnterWithMetaData(
1686 const std::vector<DropData::Metadata>& metadata,
1687 const gfx::PointF& client_pt,
1688 const gfx::PointF& screen_pt,
1689 WebDragOperationsMask operations_allowed,
1690 int key_modifiers) {
1691 Send(new DragMsg_TargetDragEnter(GetRoutingID(), metadata, client_pt,
1692 screen_pt, operations_allowed,
1693 key_modifiers));
1694 }
1695
DragTargetDragOver(const gfx::PointF & client_pt,const gfx::PointF & screen_pt,WebDragOperationsMask operations_allowed,int key_modifiers)1696 void RenderWidgetHostImpl::DragTargetDragOver(
1697 const gfx::PointF& client_pt,
1698 const gfx::PointF& screen_pt,
1699 WebDragOperationsMask operations_allowed,
1700 int key_modifiers) {
1701 Send(new DragMsg_TargetDragOver(GetRoutingID(), client_pt, screen_pt,
1702 operations_allowed, key_modifiers));
1703 }
1704
DragTargetDragLeave(const gfx::PointF & client_point,const gfx::PointF & screen_point)1705 void RenderWidgetHostImpl::DragTargetDragLeave(
1706 const gfx::PointF& client_point,
1707 const gfx::PointF& screen_point) {
1708 Send(new DragMsg_TargetDragLeave(GetRoutingID(), client_point, screen_point));
1709 }
1710
DragTargetDrop(const DropData & drop_data,const gfx::PointF & client_pt,const gfx::PointF & screen_pt,int key_modifiers)1711 void RenderWidgetHostImpl::DragTargetDrop(const DropData& drop_data,
1712 const gfx::PointF& client_pt,
1713 const gfx::PointF& screen_pt,
1714 int key_modifiers) {
1715 DropData drop_data_with_permissions(drop_data);
1716 GrantFileAccessFromDropData(&drop_data_with_permissions);
1717 Send(new DragMsg_TargetDrop(GetRoutingID(), drop_data_with_permissions,
1718 client_pt, screen_pt, key_modifiers));
1719 }
1720
DragSourceEndedAt(const gfx::PointF & client_pt,const gfx::PointF & screen_pt,blink::WebDragOperation operation)1721 void RenderWidgetHostImpl::DragSourceEndedAt(
1722 const gfx::PointF& client_pt,
1723 const gfx::PointF& screen_pt,
1724 blink::WebDragOperation operation) {
1725 Send(new DragMsg_SourceEnded(GetRoutingID(),
1726 client_pt,
1727 screen_pt,
1728 operation));
1729 }
1730
DragSourceSystemDragEnded()1731 void RenderWidgetHostImpl::DragSourceSystemDragEnded() {
1732 // TODO(dtapuska): Remove this null check once all of the Drag IPCs
1733 // come over the mojo channels. It will be guaranteed that this
1734 // will be non-null.
1735 if (blink_frame_widget_)
1736 blink_frame_widget_->DragSourceSystemDragEnded();
1737 }
1738
FilterDropData(DropData * drop_data)1739 void RenderWidgetHostImpl::FilterDropData(DropData* drop_data) {
1740 #if DCHECK_IS_ON()
1741 drop_data->view_id = GetRoutingID();
1742 #endif // DCHECK_IS_ON()
1743
1744 GetProcess()->FilterURL(true, &drop_data->url);
1745 if (drop_data->did_originate_from_renderer) {
1746 drop_data->filenames.clear();
1747 }
1748 }
1749
SetCursor(const ui::Cursor & cursor)1750 void RenderWidgetHostImpl::SetCursor(const ui::Cursor& cursor) {
1751 SetCursor(WebCursor(cursor));
1752 }
1753
GetPriority()1754 RenderProcessHost::Priority RenderWidgetHostImpl::GetPriority() {
1755 RenderProcessHost::Priority priority = {
1756 is_hidden_,
1757 frame_depth_,
1758 intersects_viewport_,
1759 #if defined(OS_ANDROID)
1760 importance_,
1761 #endif
1762 };
1763 if (owner_delegate_ &&
1764 !owner_delegate_->ShouldContributePriorityToProcess()) {
1765 priority.is_hidden = true;
1766 priority.frame_depth = RenderProcessHostImpl::kMaxFrameDepthForPriority;
1767 #if defined(OS_ANDROID)
1768 priority.importance = ChildProcessImportance::NORMAL;
1769 #endif
1770 }
1771 return priority;
1772 }
1773
RenderProcessExited(RenderProcessHost * host,const ChildProcessTerminationInfo & info)1774 void RenderWidgetHostImpl::RenderProcessExited(
1775 RenderProcessHost* host,
1776 const ChildProcessTerminationInfo& info) {
1777 // When the RenderViewHost or the RenderFrameHost own this instance, they
1778 // manage its destruction. Otherwise it is owned by the renderer process and
1779 // must self-destroy when it exits.
1780 if (!owner_delegate_ && !owned_by_render_frame_host_)
1781 Destroy(true);
1782 }
1783
GetWidgetInputHandler()1784 mojom::WidgetInputHandler* RenderWidgetHostImpl::GetWidgetInputHandler() {
1785 if (associated_widget_input_handler_)
1786 return associated_widget_input_handler_.get();
1787 if (widget_input_handler_)
1788 return widget_input_handler_.get();
1789 // TODO(dtapuska): Remove the need for the unbound interface. It is
1790 // possible that a RVHI may make calls to a WidgetInputHandler when
1791 // the main frame is remote. This is because of ordering issues during
1792 // widget shutdown, so we present an UnboundWidgetInputHandler had
1793 // DLOGS the message calls.
1794 return g_unbound_input_handler.Pointer();
1795 }
1796
NotifyScreenInfoChanged()1797 void RenderWidgetHostImpl::NotifyScreenInfoChanged() {
1798 // The resize message (which may not happen immediately) will carry with it
1799 // the screen info as well as the new size (if the screen has changed scale
1800 // factor).
1801 SynchronizeVisualProperties();
1802
1803 // The device scale factor will be same for all the views contained by the
1804 // MainFrame, so just set it once.
1805 if (delegate_ && !delegate_->IsWidgetForMainFrame(this))
1806 return;
1807
1808 // The delegate may not have an input event router in tests.
1809 if (auto* touch_emulator = GetExistingTouchEmulator())
1810 touch_emulator->SetDeviceScaleFactor(GetScaleFactorForView(view_.get()));
1811 }
1812
GetSnapshotFromBrowser(GetSnapshotFromBrowserCallback callback,bool from_surface)1813 void RenderWidgetHostImpl::GetSnapshotFromBrowser(
1814 GetSnapshotFromBrowserCallback callback,
1815 bool from_surface) {
1816 int snapshot_id = next_browser_snapshot_id_++;
1817 if (from_surface) {
1818 pending_surface_browser_snapshots_.insert(
1819 std::make_pair(snapshot_id, std::move(callback)));
1820 Send(new WidgetMsg_ForceRedraw(GetRoutingID(), snapshot_id));
1821 return;
1822 }
1823
1824 #if defined(OS_MACOSX)
1825 // MacOS version of underlying GrabViewSnapshot() blocks while
1826 // display/GPU are in a power-saving mode, so make sure display
1827 // does not go to sleep for the duration of reading a snapshot.
1828 if (pending_browser_snapshots_.empty())
1829 GetWakeLock()->RequestWakeLock();
1830 #endif
1831 // TODO(nzolghadr): Remove the duplication here and the if block just above.
1832 pending_browser_snapshots_.insert(
1833 std::make_pair(snapshot_id, std::move(callback)));
1834 Send(new WidgetMsg_ForceRedraw(GetRoutingID(), snapshot_id));
1835 }
1836
SelectionChanged(const base::string16 & text,uint32_t offset,const gfx::Range & range,bool user_initiated)1837 void RenderWidgetHostImpl::SelectionChanged(const base::string16& text,
1838 uint32_t offset,
1839 const gfx::Range& range,
1840 bool user_initiated) {
1841 if (view_) {
1842 view_->SelectionChanged(text, static_cast<size_t>(offset), range,
1843 user_initiated);
1844 }
1845 }
1846
OnSelectionBoundsChanged(const WidgetHostMsg_SelectionBounds_Params & params)1847 void RenderWidgetHostImpl::OnSelectionBoundsChanged(
1848 const WidgetHostMsg_SelectionBounds_Params& params) {
1849 if (view_)
1850 view_->SelectionBoundsChanged(params);
1851 }
1852
OnStartDragging(const DropData & drop_data,blink::WebDragOperationsMask drag_operations_mask,const SkBitmap & bitmap,const gfx::Vector2d & bitmap_offset_in_dip,const DragEventSourceInfo & event_info)1853 void RenderWidgetHostImpl::OnStartDragging(
1854 const DropData& drop_data,
1855 blink::WebDragOperationsMask drag_operations_mask,
1856 const SkBitmap& bitmap,
1857 const gfx::Vector2d& bitmap_offset_in_dip,
1858 const DragEventSourceInfo& event_info) {
1859 RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1860 if (!view || !GetView()) {
1861 // Need to clear drag and drop state in blink.
1862 DragSourceSystemDragEnded();
1863 return;
1864 }
1865
1866 DropData filtered_data(drop_data);
1867 RenderProcessHost* process = GetProcess();
1868 ChildProcessSecurityPolicyImpl* policy =
1869 ChildProcessSecurityPolicyImpl::GetInstance();
1870
1871 // Allow drag of Javascript URLs to enable bookmarklet drag to bookmark bar.
1872 if (!filtered_data.url.SchemeIs(url::kJavaScriptScheme))
1873 process->FilterURL(true, &filtered_data.url);
1874 process->FilterURL(false, &filtered_data.html_base_url);
1875 // Filter out any paths that the renderer didn't have access to. This prevents
1876 // the following attack on a malicious renderer:
1877 // 1. StartDragging IPC sent with renderer-specified filesystem paths that it
1878 // doesn't have read permissions for.
1879 // 2. We initiate a native DnD operation.
1880 // 3. DnD operation immediately ends since mouse is not held down. DnD events
1881 // still fire though, which causes read permissions to be granted to the
1882 // renderer for any file paths in the drop.
1883 filtered_data.filenames.clear();
1884 for (const auto& file_info : drop_data.filenames) {
1885 if (policy->CanReadFile(GetProcess()->GetID(), file_info.path))
1886 filtered_data.filenames.push_back(file_info);
1887 }
1888
1889 storage::FileSystemContext* file_system_context =
1890 GetProcess()->GetStoragePartition()->GetFileSystemContext();
1891 filtered_data.file_system_files.clear();
1892 for (size_t i = 0; i < drop_data.file_system_files.size(); ++i) {
1893 storage::FileSystemURL file_system_url =
1894 file_system_context->CrackURL(drop_data.file_system_files[i].url);
1895 if (policy->CanReadFileSystemFile(GetProcess()->GetID(), file_system_url))
1896 filtered_data.file_system_files.push_back(drop_data.file_system_files[i]);
1897 }
1898
1899 float scale = GetScaleFactorForView(GetView());
1900 gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, scale));
1901 view->StartDragging(filtered_data, drag_operations_mask, image,
1902 bitmap_offset_in_dip, event_info, this);
1903 }
1904
OnUpdateDragCursor(WebDragOperation current_op)1905 void RenderWidgetHostImpl::OnUpdateDragCursor(WebDragOperation current_op) {
1906 if (delegate_->OnUpdateDragCursor())
1907 return;
1908
1909 RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1910 if (view)
1911 view->UpdateDragCursor(current_op);
1912 }
1913
OnFrameSwapMessagesReceived(uint32_t frame_token,std::vector<IPC::Message> messages)1914 void RenderWidgetHostImpl::OnFrameSwapMessagesReceived(
1915 uint32_t frame_token,
1916 std::vector<IPC::Message> messages) {
1917 frame_token_message_queue_->OnFrameSwapMessagesReceived(frame_token,
1918 std::move(messages));
1919 }
1920
OnForceRedrawComplete(int snapshot_id)1921 void RenderWidgetHostImpl::OnForceRedrawComplete(int snapshot_id) {
1922 #if defined(OS_MACOSX) || defined(OS_WIN)
1923 // On Mac, when using CoreAnimation, or Win32 when using GDI, there is a
1924 // delay between when content is drawn to the screen, and when the
1925 // snapshot will actually pick up that content. Insert a manual delay of
1926 // 1/6th of a second (to simulate 10 frames at 60 fps) before actually
1927 // taking the snapshot.
1928 base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
1929 FROM_HERE,
1930 base::BindOnce(&RenderWidgetHostImpl::WindowSnapshotReachedScreen,
1931 weak_factory_.GetWeakPtr(), snapshot_id),
1932 TimeDelta::FromSecondsD(1. / 6));
1933 #else
1934 WindowSnapshotReachedScreen(snapshot_id);
1935 #endif
1936 }
1937
OnFirstVisuallyNonEmptyPaint()1938 void RenderWidgetHostImpl::OnFirstVisuallyNonEmptyPaint() {
1939 if (owner_delegate_)
1940 owner_delegate_->RenderWidgetDidFirstVisuallyNonEmptyPaint();
1941 }
1942
RendererExited()1943 void RenderWidgetHostImpl::RendererExited() {
1944 if (!renderer_initialized_)
1945 return;
1946
1947 // Clearing this flag causes us to re-create the renderer when recovering
1948 // from a crashed renderer.
1949 renderer_initialized_ = false;
1950
1951 // After the renderer crashes, the view is destroyed and so the
1952 // RenderWidgetHost cannot track its visibility anymore. We assume such
1953 // RenderWidgetHost to be invisible for the sake of internal accounting - be
1954 // careful about changing this - see http://crbug.com/401859 and
1955 // http://crbug.com/522795.
1956 //
1957 // We need to at least make sure that the RenderProcessHost is notified about
1958 // the |is_hidden_| change, so that the renderer will have correct visibility
1959 // set when respawned.
1960 if (!is_hidden_) {
1961 is_hidden_ = true;
1962 if (!destroyed_)
1963 process_->UpdateClientPriority(this);
1964 }
1965
1966 if (view_) {
1967 view_->RenderProcessGone();
1968 SetView(nullptr); // The View should be deleted by RenderProcessGone.
1969 }
1970 }
1971
ResetStateForCreatedRenderWidget(const VisualProperties & initial_props)1972 void RenderWidgetHostImpl::ResetStateForCreatedRenderWidget(
1973 const VisualProperties& initial_props) {
1974 // When the RenderWidget was destroyed, the ack may never come back. Don't
1975 // let that prevent us from speaking to the next RenderWidget.
1976 waiting_for_screen_rects_ack_ = false;
1977
1978 visual_properties_ack_pending_ =
1979 DoesVisualPropertiesNeedAck(nullptr, initial_props);
1980 old_visual_properties_ = std::make_unique<VisualProperties>(initial_props);
1981
1982 // Reconstruct the input router to ensure that it has fresh state for a new
1983 // RenderWidget. Otherwise it may be stuck waiting for the old renderer to ack
1984 // an event. (In particular, the above call to view_->RenderProcessGone() will
1985 // destroy the aura window, which may dispatch a synthetic mouse move.)
1986 //
1987 // This also stops the event ack timeout to ensure the hung renderer mechanism
1988 // is working properly.
1989 SetupInputRouter();
1990
1991 frame_token_message_queue_->Reset();
1992 }
1993
UpdateTextDirection(base::i18n::TextDirection direction)1994 void RenderWidgetHostImpl::UpdateTextDirection(
1995 base::i18n::TextDirection direction) {
1996 text_direction_updated_ = true;
1997 text_direction_ = direction;
1998 }
1999
NotifyTextDirection()2000 void RenderWidgetHostImpl::NotifyTextDirection() {
2001 if (!text_direction_updated_)
2002 return;
2003 Send(new WidgetMsg_SetTextDirection(GetRoutingID(), text_direction_));
2004 text_direction_updated_ = false;
2005 }
2006
ImeSetComposition(const base::string16 & text,const std::vector<ui::ImeTextSpan> & ime_text_spans,const gfx::Range & replacement_range,int selection_start,int selection_end)2007 void RenderWidgetHostImpl::ImeSetComposition(
2008 const base::string16& text,
2009 const std::vector<ui::ImeTextSpan>& ime_text_spans,
2010 const gfx::Range& replacement_range,
2011 int selection_start,
2012 int selection_end) {
2013 GetWidgetInputHandler()->ImeSetComposition(
2014 text, ime_text_spans, replacement_range, selection_start, selection_end);
2015 #if defined(OS_ANDROID)
2016 for (auto& observer : ime_input_event_observers_) {
2017 observer.OnImeSetComposingTextEvent(text);
2018 }
2019 #endif
2020 }
2021
ImeCommitText(const base::string16 & text,const std::vector<ui::ImeTextSpan> & ime_text_spans,const gfx::Range & replacement_range,int relative_cursor_pos)2022 void RenderWidgetHostImpl::ImeCommitText(
2023 const base::string16& text,
2024 const std::vector<ui::ImeTextSpan>& ime_text_spans,
2025 const gfx::Range& replacement_range,
2026 int relative_cursor_pos) {
2027 GetWidgetInputHandler()->ImeCommitText(text, ime_text_spans,
2028 replacement_range, relative_cursor_pos,
2029 base::OnceClosure());
2030 #if defined(OS_ANDROID)
2031 for (auto& observer : ime_input_event_observers_) {
2032 observer.OnImeTextCommittedEvent(text);
2033 }
2034 #endif
2035 }
2036
ImeFinishComposingText(bool keep_selection)2037 void RenderWidgetHostImpl::ImeFinishComposingText(bool keep_selection) {
2038 GetWidgetInputHandler()->ImeFinishComposingText(keep_selection);
2039 #if defined(OS_ANDROID)
2040 for (auto& observer : ime_input_event_observers_) {
2041 observer.OnImeFinishComposingTextEvent();
2042 }
2043 #endif
2044 }
2045
ImeCancelComposition()2046 void RenderWidgetHostImpl::ImeCancelComposition() {
2047 GetWidgetInputHandler()->ImeSetComposition(base::string16(),
2048 std::vector<ui::ImeTextSpan>(),
2049 gfx::Range::InvalidRange(), 0, 0);
2050 }
2051
RejectMouseLockOrUnlockIfNecessary(blink::mojom::PointerLockResult reason)2052 void RenderWidgetHostImpl::RejectMouseLockOrUnlockIfNecessary(
2053 blink::mojom::PointerLockResult reason) {
2054 DCHECK(!pending_mouse_lock_request_ || !IsMouseLocked());
2055 DCHECK(reason != blink::mojom::PointerLockResult::kSuccess);
2056 if (pending_mouse_lock_request_) {
2057 DCHECK(request_mouse_callback_);
2058 pending_mouse_lock_request_ = false;
2059 mouse_lock_raw_movement_ = false;
2060 std::move(request_mouse_callback_).Run(reason);
2061
2062 } else if (IsMouseLocked()) {
2063 view_->UnlockMouse();
2064 }
2065 }
2066
IsKeyboardLocked() const2067 bool RenderWidgetHostImpl::IsKeyboardLocked() const {
2068 return view_ ? view_->IsKeyboardLocked() : false;
2069 }
2070
GetContentRenderingTimeoutFrom(RenderWidgetHostImpl * other)2071 void RenderWidgetHostImpl::GetContentRenderingTimeoutFrom(
2072 RenderWidgetHostImpl* other) {
2073 if (other->new_content_rendering_timeout_ &&
2074 other->new_content_rendering_timeout_->IsRunning()) {
2075 new_content_rendering_timeout_->Start(
2076 other->new_content_rendering_timeout_->GetCurrentDelay());
2077 }
2078 }
2079
OnMouseEventAck(const MouseEventWithLatencyInfo & mouse_event,InputEventAckSource ack_source,InputEventAckState ack_result)2080 void RenderWidgetHostImpl::OnMouseEventAck(
2081 const MouseEventWithLatencyInfo& mouse_event,
2082 InputEventAckSource ack_source,
2083 InputEventAckState ack_result) {
2084 latency_tracker_.OnInputEventAck(mouse_event.event, &mouse_event.latency,
2085 ack_result);
2086 for (auto& input_event_observer : input_event_observers_)
2087 input_event_observer.OnInputEventAck(ack_source, ack_result,
2088 mouse_event.event);
2089
2090 // Give the delegate the ability to handle a mouse event that wasn't consumed
2091 // by the renderer. eg. Back/Forward mouse buttons.
2092 if (delegate_ && ack_result != INPUT_EVENT_ACK_STATE_CONSUMED && !is_hidden())
2093 delegate_->HandleMouseEvent(mouse_event.event);
2094 }
2095
IsMouseLocked() const2096 bool RenderWidgetHostImpl::IsMouseLocked() const {
2097 return view_ ? view_->IsMouseLocked() : false;
2098 }
2099
SetVisualPropertiesFromParentFrame(float page_scale_factor,bool is_pinch_gesture_active,const gfx::Size & visible_viewport_size,const gfx::Rect & compositor_viewport)2100 void RenderWidgetHostImpl::SetVisualPropertiesFromParentFrame(
2101 float page_scale_factor,
2102 bool is_pinch_gesture_active,
2103 const gfx::Size& visible_viewport_size,
2104 const gfx::Rect& compositor_viewport) {
2105 properties_from_parent_local_root_.page_scale_factor = page_scale_factor;
2106 properties_from_parent_local_root_.is_pinch_gesture_active =
2107 is_pinch_gesture_active;
2108 properties_from_parent_local_root_.visible_viewport_size =
2109 visible_viewport_size;
2110 properties_from_parent_local_root_.compositor_viewport = compositor_viewport;
2111 }
2112
SetAutoResize(bool enable,const gfx::Size & min_size,const gfx::Size & max_size)2113 void RenderWidgetHostImpl::SetAutoResize(bool enable,
2114 const gfx::Size& min_size,
2115 const gfx::Size& max_size) {
2116 auto_resize_enabled_ = enable;
2117 min_size_for_auto_resize_ = min_size;
2118 max_size_for_auto_resize_ = max_size;
2119 }
2120
Destroy(bool also_delete)2121 void RenderWidgetHostImpl::Destroy(bool also_delete) {
2122 DCHECK(!destroyed_);
2123 destroyed_ = true;
2124
2125 for (auto& observer : observers_)
2126 observer.RenderWidgetHostDestroyed(this);
2127 NotificationService::current()->Notify(
2128 NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED, Source<RenderWidgetHost>(this),
2129 NotificationService::NoDetails());
2130
2131 // Tell the view to die.
2132 // Note that in the process of the view shutting down, it can call a ton
2133 // of other messages on us. So if you do any other deinitialization here,
2134 // do it after this call to view_->Destroy().
2135 if (view_) {
2136 view_->Destroy();
2137 view_.reset();
2138 }
2139
2140 render_process_blocked_state_changed_subscription_.reset();
2141 process_->RemovePriorityClient(this);
2142 process_->RemoveObserver(this);
2143 process_->RemoveRoute(routing_id_);
2144 g_routing_id_widget_map.Get().erase(
2145 RenderWidgetHostID(process_->GetID(), routing_id_));
2146
2147 // The |delegate_| may have been destroyed (or is in the process of being
2148 // destroyed) and detached first.
2149 if (delegate_)
2150 delegate_->RenderWidgetDeleted(this);
2151
2152 if (also_delete) {
2153 CHECK(!owner_delegate_);
2154 delete this;
2155 }
2156 }
2157
OnInputEventAckTimeout()2158 void RenderWidgetHostImpl::OnInputEventAckTimeout() {
2159 RendererIsUnresponsive(base::BindRepeating(
2160 &RenderWidgetHostImpl::RestartInputEventAckTimeoutIfNecessary,
2161 weak_factory_.GetWeakPtr()));
2162 }
2163
RendererIsUnresponsive(base::RepeatingClosure restart_hang_monitor_timeout)2164 void RenderWidgetHostImpl::RendererIsUnresponsive(
2165 base::RepeatingClosure restart_hang_monitor_timeout) {
2166 NotificationService::current()->Notify(
2167 NOTIFICATION_RENDER_WIDGET_HOST_HANG,
2168 Source<RenderWidgetHost>(this),
2169 NotificationService::NoDetails());
2170 is_unresponsive_ = true;
2171
2172 if (delegate_) {
2173 delegate_->RendererUnresponsive(this,
2174 std::move(restart_hang_monitor_timeout));
2175 }
2176
2177 // Do not add code after this since the Delegate may delete this
2178 // RenderWidgetHostImpl in RendererUnresponsive.
2179 }
2180
RendererIsResponsive()2181 void RenderWidgetHostImpl::RendererIsResponsive() {
2182 if (is_unresponsive_) {
2183 is_unresponsive_ = false;
2184 if (delegate_)
2185 delegate_->RendererResponsive(this);
2186 }
2187 }
2188
ClearDisplayedGraphics()2189 void RenderWidgetHostImpl::ClearDisplayedGraphics() {
2190 NotifyNewContentRenderingTimeoutForTesting();
2191 if (view_)
2192 view_->ResetFallbackToFirstNavigationSurface();
2193 }
2194
OnKeyboardEventAck(const NativeWebKeyboardEventWithLatencyInfo & event,InputEventAckSource ack_source,InputEventAckState ack_result)2195 void RenderWidgetHostImpl::OnKeyboardEventAck(
2196 const NativeWebKeyboardEventWithLatencyInfo& event,
2197 InputEventAckSource ack_source,
2198 InputEventAckState ack_result) {
2199 latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
2200 for (auto& input_event_observer : input_event_observers_)
2201 input_event_observer.OnInputEventAck(ack_source, ack_result, event.event);
2202
2203 bool processed = (INPUT_EVENT_ACK_STATE_CONSUMED == ack_result);
2204
2205 // The view may be destroyed by the time we get this ack, as is the case with
2206 // portal activations.
2207 if (!processed && GetView())
2208 processed = GetView()->OnUnconsumedKeyboardEventAck(event);
2209
2210 // We only send unprocessed key event upwards if we are not hidden,
2211 // because the user has moved away from us and no longer expect any effect
2212 // of this key event.
2213 if (delegate_ && !processed && !is_hidden() && !event.event.skip_in_browser)
2214 delegate_->HandleKeyboardEvent(event.event);
2215 // WARNING: This RenderWidgetHostImpl can be deallocated at this point
2216 // (i.e. in the case of Ctrl+W, where the call to
2217 // HandleKeyboardEvent destroys this RenderWidgetHostImpl).
2218 }
2219
OnClose()2220 void RenderWidgetHostImpl::OnClose() {
2221 if (owner_delegate_) {
2222 owner_delegate_->RenderWidgetDidClose();
2223 } else {
2224 ShutdownAndDestroyWidget(true);
2225 }
2226 }
2227
OnSetTooltipText(const base::string16 & tooltip_text,base::i18n::TextDirection text_direction_hint)2228 void RenderWidgetHostImpl::OnSetTooltipText(
2229 const base::string16& tooltip_text,
2230 base::i18n::TextDirection text_direction_hint) {
2231 if (!GetView())
2232 return;
2233
2234 // First, add directionality marks around tooltip text if necessary.
2235 // A naive solution would be to simply always wrap the text. However, on
2236 // windows, Unicode directional embedding characters can't be displayed on
2237 // systems that lack RTL fonts and are instead displayed as empty squares.
2238 //
2239 // To get around this we only wrap the string when we deem it necessary i.e.
2240 // when the locale direction is different than the tooltip direction hint.
2241 //
2242 // Currently, we use element's directionality as the tooltip direction hint.
2243 // An alternate solution would be to set the overall directionality based on
2244 // trying to detect the directionality from the tooltip text rather than the
2245 // element direction. One could argue that would be a preferable solution
2246 // but we use the current approach to match Fx & IE's behavior.
2247 base::string16 wrapped_tooltip_text = tooltip_text;
2248 if (!tooltip_text.empty()) {
2249 if (text_direction_hint == base::i18n::LEFT_TO_RIGHT) {
2250 // Force the tooltip to have LTR directionality.
2251 wrapped_tooltip_text =
2252 base::i18n::GetDisplayStringInLTRDirectionality(wrapped_tooltip_text);
2253 } else if (text_direction_hint == base::i18n::RIGHT_TO_LEFT &&
2254 !base::i18n::IsRTL()) {
2255 // Force the tooltip to have RTL directionality.
2256 base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
2257 }
2258 }
2259 view_->SetTooltipText(wrapped_tooltip_text);
2260 }
2261
OnUpdateScreenRectsAck()2262 void RenderWidgetHostImpl::OnUpdateScreenRectsAck() {
2263 waiting_for_screen_rects_ack_ = false;
2264 if (!view_)
2265 return;
2266
2267 if (view_->GetViewBounds() == last_view_screen_rect_ &&
2268 view_->GetBoundsInRootWindow() == last_window_screen_rect_) {
2269 return;
2270 }
2271
2272 SendScreenRects();
2273 }
2274
OnRequestSetBounds(const gfx::Rect & bounds)2275 void RenderWidgetHostImpl::OnRequestSetBounds(const gfx::Rect& bounds) {
2276 if (owner_delegate_) {
2277 owner_delegate_->RequestSetBounds(bounds);
2278 } else if (view_) {
2279 view_->SetBounds(bounds);
2280 }
2281 Send(new WidgetMsg_SetBounds_ACK(routing_id_));
2282 }
2283
OnLocalSurfaceIdChanged(const cc::RenderFrameMetadata & metadata)2284 void RenderWidgetHostImpl::OnLocalSurfaceIdChanged(
2285 const cc::RenderFrameMetadata& metadata) {
2286 TRACE_EVENT_WITH_FLOW1(
2287 "renderer_host,disabled-by-default-viz.surface_id_flow",
2288 "RenderWidgetHostImpl::OnLocalSurfaceIdChanged",
2289 metadata.local_surface_id_allocation &&
2290 metadata.local_surface_id_allocation->IsValid()
2291 ? metadata.local_surface_id_allocation->local_surface_id()
2292 .submission_trace_id() +
2293 metadata.local_surface_id_allocation->local_surface_id()
2294 .embed_trace_id()
2295 : 0,
2296 TRACE_EVENT_FLAG_FLOW_IN, "local_surface_id_allocation",
2297 metadata.local_surface_id_allocation
2298 ? metadata.local_surface_id_allocation->ToString()
2299 : "null");
2300
2301 // Update our knowledge of the RenderWidget's size.
2302 DCHECK(!metadata.viewport_size_in_pixels.IsEmpty());
2303
2304 visual_properties_ack_pending_ = false;
2305
2306 NotificationService::current()->Notify(
2307 NOTIFICATION_RENDER_WIDGET_HOST_DID_UPDATE_VISUAL_PROPERTIES,
2308 Source<RenderWidgetHost>(this), NotificationService::NoDetails());
2309
2310 if (!view_)
2311 return;
2312
2313 viz::ScopedSurfaceIdAllocator scoped_allocator =
2314 view_->DidUpdateVisualProperties(metadata);
2315 base::AutoReset<bool> auto_reset(&surface_id_allocation_suppressed_, true);
2316
2317 if (auto_resize_enabled_ && delegate_) {
2318 // TODO(fsamuel): The fact that we translate the viewport_size from pixels
2319 // to DIP is concerning. This could result in invariants violations.
2320 gfx::Size viewport_size_in_dip = gfx::ScaleToCeiledSize(
2321 metadata.viewport_size_in_pixels, 1.f / metadata.device_scale_factor);
2322 delegate_->ResizeDueToAutoResize(this, viewport_size_in_dip);
2323 }
2324 }
2325
2326 // static
DidVisualPropertiesSizeChange(const VisualProperties & old_visual_properties,const VisualProperties & new_visual_properties)2327 bool RenderWidgetHostImpl::DidVisualPropertiesSizeChange(
2328 const VisualProperties& old_visual_properties,
2329 const VisualProperties& new_visual_properties) {
2330 return old_visual_properties.auto_resize_enabled !=
2331 new_visual_properties.auto_resize_enabled ||
2332 (old_visual_properties.auto_resize_enabled &&
2333 (old_visual_properties.min_size_for_auto_resize !=
2334 new_visual_properties.min_size_for_auto_resize ||
2335 old_visual_properties.max_size_for_auto_resize !=
2336 new_visual_properties.max_size_for_auto_resize)) ||
2337 (!old_visual_properties.auto_resize_enabled &&
2338 (old_visual_properties.new_size != new_visual_properties.new_size ||
2339 (old_visual_properties.compositor_viewport_pixel_rect.IsEmpty() &&
2340 !new_visual_properties.compositor_viewport_pixel_rect.IsEmpty())));
2341 }
2342
2343 // static
DoesVisualPropertiesNeedAck(const std::unique_ptr<VisualProperties> & old_visual_properties,const VisualProperties & new_visual_properties)2344 bool RenderWidgetHostImpl::DoesVisualPropertiesNeedAck(
2345 const std::unique_ptr<VisualProperties>& old_visual_properties,
2346 const VisualProperties& new_visual_properties) {
2347 // We should throttle sending updated VisualProperties to the renderer to
2348 // the rate of commit. This ensures we don't overwhelm the renderer with
2349 // visual updates faster than it can keep up. |needs_ack| corresponds to
2350 // cases where a commit is expected.
2351 bool is_acking_applicable =
2352 g_check_for_pending_visual_properties_ack &&
2353 !new_visual_properties.auto_resize_enabled &&
2354 !new_visual_properties.new_size.IsEmpty() &&
2355 !new_visual_properties.compositor_viewport_pixel_rect.IsEmpty() &&
2356 new_visual_properties.local_surface_id_allocation;
2357
2358 // If acking is applicable, then check if there has been an
2359 // |old_visual_properties| stored which would indicate an update has been
2360 // sent. If so, then acking is defined by size changing.
2361 return is_acking_applicable &&
2362 (!old_visual_properties ||
2363 DidVisualPropertiesSizeChange(*old_visual_properties,
2364 new_visual_properties));
2365 }
2366
2367 // static
StoredVisualPropertiesNeedsUpdate(const std::unique_ptr<VisualProperties> & old_visual_properties,const VisualProperties & new_visual_properties)2368 bool RenderWidgetHostImpl::StoredVisualPropertiesNeedsUpdate(
2369 const std::unique_ptr<VisualProperties>& old_visual_properties,
2370 const VisualProperties& new_visual_properties) {
2371 if (!old_visual_properties)
2372 return true;
2373
2374 const bool size_changed = DidVisualPropertiesSizeChange(
2375 *old_visual_properties, new_visual_properties);
2376
2377 // Hold on the the LocalSurfaceIdAllocation in a local variable otherwise the
2378 // LocalSurfaceId may become invalid when used later.
2379 viz::LocalSurfaceIdAllocation old_parent_local_surface_id_allocation =
2380 old_visual_properties->local_surface_id_allocation.value_or(
2381 viz::LocalSurfaceIdAllocation());
2382 viz::LocalSurfaceIdAllocation new_parent_local_surface_id_allocation =
2383 new_visual_properties.local_surface_id_allocation.value_or(
2384 viz::LocalSurfaceIdAllocation());
2385
2386 const viz::LocalSurfaceId& old_parent_local_surface_id =
2387 old_parent_local_surface_id_allocation.local_surface_id();
2388 const viz::LocalSurfaceId& new_parent_local_surface_id =
2389 new_parent_local_surface_id_allocation.local_surface_id();
2390
2391 const bool parent_local_surface_id_changed =
2392 old_parent_local_surface_id.parent_sequence_number() !=
2393 new_parent_local_surface_id.parent_sequence_number() ||
2394 old_parent_local_surface_id.embed_token() !=
2395 new_parent_local_surface_id.embed_token();
2396
2397 const bool zoom_changed =
2398 old_visual_properties->zoom_level != new_visual_properties.zoom_level;
2399
2400 return zoom_changed || size_changed || parent_local_surface_id_changed ||
2401 old_visual_properties->screen_info !=
2402 new_visual_properties.screen_info ||
2403 old_visual_properties->compositor_viewport_pixel_rect !=
2404 new_visual_properties.compositor_viewport_pixel_rect ||
2405 old_visual_properties->compositor_viewport_pixel_rect !=
2406 new_visual_properties.compositor_viewport_pixel_rect ||
2407 old_visual_properties->is_fullscreen_granted !=
2408 new_visual_properties.is_fullscreen_granted ||
2409 old_visual_properties->display_mode !=
2410 new_visual_properties.display_mode ||
2411 old_visual_properties->browser_controls_params !=
2412 new_visual_properties.browser_controls_params ||
2413 old_visual_properties->visible_viewport_size !=
2414 new_visual_properties.visible_viewport_size ||
2415 old_visual_properties->capture_sequence_number !=
2416 new_visual_properties.capture_sequence_number ||
2417 old_visual_properties->page_scale_factor !=
2418 new_visual_properties.page_scale_factor ||
2419 old_visual_properties->is_pinch_gesture_active !=
2420 new_visual_properties.is_pinch_gesture_active;
2421 }
2422
OnSetCursor(const WebCursor & cursor)2423 void RenderWidgetHostImpl::OnSetCursor(const WebCursor& cursor) {
2424 SetCursor(cursor);
2425 }
2426
OnAutoscrollStart(const gfx::PointF & position)2427 void RenderWidgetHostImpl::OnAutoscrollStart(const gfx::PointF& position) {
2428 GetView()->OnAutoscrollStart();
2429 sent_autoscroll_scroll_begin_ = false;
2430 autoscroll_in_progress_ = true;
2431 delegate()->GetInputEventRouter()->SetAutoScrollInProgress(
2432 autoscroll_in_progress_);
2433 autoscroll_start_position_ = position;
2434 }
2435
OnAutoscrollFling(const gfx::Vector2dF & velocity)2436 void RenderWidgetHostImpl::OnAutoscrollFling(const gfx::Vector2dF& velocity) {
2437 DCHECK(autoscroll_in_progress_);
2438 if (!sent_autoscroll_scroll_begin_ && velocity != gfx::Vector2dF()) {
2439 // Send a GSB event with valid delta hints.
2440 WebGestureEvent scroll_begin = SyntheticWebGestureEventBuilder::Build(
2441 WebInputEvent::kGestureScrollBegin,
2442 blink::WebGestureDevice::kSyntheticAutoscroll);
2443 scroll_begin.SetPositionInWidget(autoscroll_start_position_);
2444 scroll_begin.data.scroll_begin.delta_x_hint = velocity.x();
2445 scroll_begin.data.scroll_begin.delta_y_hint = velocity.y();
2446
2447 ForwardGestureEventWithLatencyInfo(
2448 scroll_begin, ui::LatencyInfo(ui::SourceEventType::OTHER));
2449 sent_autoscroll_scroll_begin_ = true;
2450 }
2451
2452 WebGestureEvent event = SyntheticWebGestureEventBuilder::Build(
2453 WebInputEvent::kGestureFlingStart,
2454 blink::WebGestureDevice::kSyntheticAutoscroll);
2455 event.SetPositionInWidget(autoscroll_start_position_);
2456 event.data.fling_start.velocity_x = velocity.x();
2457 event.data.fling_start.velocity_y = velocity.y();
2458
2459 ForwardGestureEventWithLatencyInfo(
2460 event, ui::LatencyInfo(ui::SourceEventType::OTHER));
2461 }
2462
OnAutoscrollEnd()2463 void RenderWidgetHostImpl::OnAutoscrollEnd() {
2464 autoscroll_in_progress_ = false;
2465
2466 delegate()->GetInputEventRouter()->SetAutoScrollInProgress(
2467 autoscroll_in_progress_);
2468 // Don't send a GFC if no GSB is sent.
2469 if (!sent_autoscroll_scroll_begin_)
2470 return;
2471
2472 sent_autoscroll_scroll_begin_ = false;
2473 WebGestureEvent cancel_event = SyntheticWebGestureEventBuilder::Build(
2474 WebInputEvent::kGestureFlingCancel,
2475 blink::WebGestureDevice::kSyntheticAutoscroll);
2476 cancel_event.data.fling_cancel.prevent_boosting = true;
2477 cancel_event.SetPositionInWidget(autoscroll_start_position_);
2478
2479 ForwardGestureEventWithLatencyInfo(
2480 cancel_event, ui::LatencyInfo(ui::SourceEventType::OTHER));
2481 }
2482
IsAutoscrollInProgress()2483 bool RenderWidgetHostImpl::IsAutoscrollInProgress() {
2484 return autoscroll_in_progress_;
2485 }
2486
GetTouchEmulator()2487 TouchEmulator* RenderWidgetHostImpl::GetTouchEmulator() {
2488 if (!delegate_ || !delegate_->GetInputEventRouter())
2489 return nullptr;
2490
2491 return delegate_->GetInputEventRouter()->GetTouchEmulator();
2492 }
2493
GetExistingTouchEmulator()2494 TouchEmulator* RenderWidgetHostImpl::GetExistingTouchEmulator() {
2495 if (!delegate_ || !delegate_->GetInputEventRouter() ||
2496 !delegate_->GetInputEventRouter()->has_touch_emulator()) {
2497 return nullptr;
2498 }
2499
2500 return delegate_->GetInputEventRouter()->GetTouchEmulator();
2501 }
2502
OnTextInputStateChanged(const TextInputState & params)2503 void RenderWidgetHostImpl::OnTextInputStateChanged(
2504 const TextInputState& params) {
2505 if (view_)
2506 view_->TextInputStateChanged(params);
2507 }
2508
OnImeCompositionRangeChanged(const gfx::Range & range,const std::vector<gfx::Rect> & character_bounds)2509 void RenderWidgetHostImpl::OnImeCompositionRangeChanged(
2510 const gfx::Range& range,
2511 const std::vector<gfx::Rect>& character_bounds) {
2512 if (view_)
2513 view_->ImeCompositionRangeChanged(range, character_bounds);
2514 }
2515
OnImeCancelComposition()2516 void RenderWidgetHostImpl::OnImeCancelComposition() {
2517 if (view_)
2518 view_->ImeCancelComposition();
2519 }
2520
IsWheelScrollInProgress()2521 bool RenderWidgetHostImpl::IsWheelScrollInProgress() {
2522 return is_in_gesture_scroll_[static_cast<int>(
2523 blink::WebGestureDevice::kTouchpad)];
2524 }
2525
SetMouseCapture(bool capture)2526 void RenderWidgetHostImpl::SetMouseCapture(bool capture) {
2527 if (!delegate_ || !delegate_->GetInputEventRouter())
2528 return;
2529
2530 delegate_->GetInputEventRouter()->SetMouseCaptureTarget(GetView(), capture);
2531 }
2532
RequestMouseLock(bool from_user_gesture,bool privileged,bool unadjusted_movement,InputRouterImpl::RequestMouseLockCallback response)2533 void RenderWidgetHostImpl::RequestMouseLock(
2534 bool from_user_gesture,
2535 bool privileged,
2536 bool unadjusted_movement,
2537 InputRouterImpl::RequestMouseLockCallback response) {
2538 if (pending_mouse_lock_request_) {
2539 std::move(response).Run(blink::mojom::PointerLockResult::kAlreadyLocked);
2540 return;
2541 }
2542
2543 if (!view_ || !view_->HasFocus()) {
2544 std::move(response).Run(blink::mojom::PointerLockResult::kWrongDocument);
2545 return;
2546 }
2547
2548 request_mouse_callback_ = std::move(response);
2549
2550 pending_mouse_lock_request_ = true;
2551 mouse_lock_raw_movement_ = unadjusted_movement;
2552 if (delegate_) {
2553 delegate_->RequestToLockMouse(this, from_user_gesture,
2554 is_last_unlocked_by_target_,
2555 privileged && allow_privileged_mouse_lock_);
2556 // We need to reset |is_last_unlocked_by_target_| here as we don't know
2557 // request source in |LostMouseLock()|.
2558 is_last_unlocked_by_target_ = false;
2559 return;
2560 }
2561
2562 // Directly reject or approve the mouse lock based on privilege.
2563 if (allow_privileged_mouse_lock_ && privileged)
2564 GotResponseToLockMouseRequest(blink::mojom::PointerLockResult::kSuccess);
2565 else
2566 GotResponseToLockMouseRequest(
2567 blink::mojom::PointerLockResult::kPermissionDenied);
2568 }
2569
RequestMouseLockChange(bool unadjusted_movement,InputRouterImpl::RequestMouseLockCallback response)2570 void RenderWidgetHostImpl::RequestMouseLockChange(
2571 bool unadjusted_movement,
2572 InputRouterImpl::RequestMouseLockCallback response) {
2573 if (pending_mouse_lock_request_) {
2574 std::move(response).Run(blink::mojom::PointerLockResult::kAlreadyLocked);
2575 return;
2576 }
2577
2578 if (!view_ || !view_->HasFocus()) {
2579 std::move(response).Run(blink::mojom::PointerLockResult::kWrongDocument);
2580 return;
2581 }
2582
2583 std::move(response).Run(view_->ChangeMouseLock(unadjusted_movement));
2584 }
2585
UnlockMouse()2586 void RenderWidgetHostImpl::UnlockMouse() {
2587 // Got unlock request from renderer. Will update |is_last_unlocked_by_target_|
2588 // for silent re-lock.
2589 const bool was_mouse_locked = !pending_mouse_lock_request_ && IsMouseLocked();
2590 RejectMouseLockOrUnlockIfNecessary(
2591 blink::mojom::PointerLockResult::kUserRejected);
2592 if (was_mouse_locked)
2593 is_last_unlocked_by_target_ = true;
2594 }
2595
FallbackCursorModeLockCursor(bool left,bool right,bool up,bool down)2596 void RenderWidgetHostImpl::FallbackCursorModeLockCursor(bool left,
2597 bool right,
2598 bool up,
2599 bool down) {
2600 GetView()->FallbackCursorModeLockCursor(left, right, up, down);
2601 }
2602
FallbackCursorModeSetCursorVisibility(bool visible)2603 void RenderWidgetHostImpl::FallbackCursorModeSetCursorVisibility(bool visible) {
2604 GetView()->FallbackCursorModeSetCursorVisibility(visible);
2605 }
2606
OnInvalidFrameToken(uint32_t frame_token)2607 void RenderWidgetHostImpl::OnInvalidFrameToken(uint32_t frame_token) {
2608 bad_message::ReceivedBadMessage(GetProcess(),
2609 bad_message::RWH_INVALID_FRAME_TOKEN);
2610 }
2611
OnMessageDispatchError(const IPC::Message & message)2612 void RenderWidgetHostImpl::OnMessageDispatchError(const IPC::Message& message) {
2613 RenderProcessHost* rph = GetProcess();
2614 rph->OnBadMessageReceived(message);
2615 }
2616
OnProcessSwapMessage(const IPC::Message & message)2617 void RenderWidgetHostImpl::OnProcessSwapMessage(const IPC::Message& message) {
2618 RenderProcessHost* rph = GetProcess();
2619 rph->OnMessageReceived(message);
2620 }
2621
RequestKeyboardLock(base::Optional<base::flat_set<ui::DomCode>> codes)2622 bool RenderWidgetHostImpl::RequestKeyboardLock(
2623 base::Optional<base::flat_set<ui::DomCode>> codes) {
2624 if (!delegate_) {
2625 CancelKeyboardLock();
2626 return false;
2627 }
2628
2629 DCHECK(!codes.has_value() || !codes.value().empty());
2630 keyboard_keys_to_lock_ = std::move(codes);
2631 keyboard_lock_requested_ = true;
2632
2633 const bool esc_requested =
2634 !keyboard_keys_to_lock_.has_value() ||
2635 base::Contains(keyboard_keys_to_lock_.value(), ui::DomCode::ESCAPE);
2636
2637 if (!delegate_->RequestKeyboardLock(this, esc_requested)) {
2638 CancelKeyboardLock();
2639 return false;
2640 }
2641
2642 return true;
2643 }
2644
CancelKeyboardLock()2645 void RenderWidgetHostImpl::CancelKeyboardLock() {
2646 if (delegate_)
2647 delegate_->CancelKeyboardLock(this);
2648
2649 UnlockKeyboard();
2650
2651 keyboard_lock_allowed_ = false;
2652 keyboard_lock_requested_ = false;
2653 keyboard_keys_to_lock_.reset();
2654 }
2655
2656 base::flat_map<std::string, std::string>
GetKeyboardLayoutMap()2657 RenderWidgetHostImpl::GetKeyboardLayoutMap() {
2658 if (!view_)
2659 return {};
2660 return view_->GetKeyboardLayoutMap();
2661 }
2662
KeyPressListenersHandleEvent(const NativeWebKeyboardEvent & event)2663 bool RenderWidgetHostImpl::KeyPressListenersHandleEvent(
2664 const NativeWebKeyboardEvent& event) {
2665 if (event.skip_in_browser || event.GetType() != WebKeyboardEvent::kRawKeyDown)
2666 return false;
2667
2668 for (size_t i = 0; i < key_press_event_callbacks_.size(); i++) {
2669 size_t original_size = key_press_event_callbacks_.size();
2670 if (key_press_event_callbacks_[i].Run(event))
2671 return true;
2672
2673 // Check whether the callback that just ran removed itself, in which case
2674 // the iterator needs to be decremented to properly account for the removal.
2675 size_t current_size = key_press_event_callbacks_.size();
2676 if (current_size != original_size) {
2677 DCHECK_EQ(original_size - 1, current_size);
2678 --i;
2679 }
2680 }
2681
2682 return false;
2683 }
2684
FilterInputEvent(const blink::WebInputEvent & event,const ui::LatencyInfo & latency_info)2685 InputEventAckState RenderWidgetHostImpl::FilterInputEvent(
2686 const blink::WebInputEvent& event, const ui::LatencyInfo& latency_info) {
2687 // Don't ignore touch cancel events, since they may be sent while input
2688 // events are being ignored in order to keep the renderer from getting
2689 // confused about how many touches are active.
2690 if (IsIgnoringInputEvents() && event.GetType() != WebInputEvent::kTouchCancel)
2691 return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
2692
2693 if (!process_->IsInitializedAndNotDead())
2694 return INPUT_EVENT_ACK_STATE_UNKNOWN;
2695
2696 if (delegate_) {
2697 if (event.GetType() == WebInputEvent::kMouseDown ||
2698 event.GetType() == WebInputEvent::kTouchStart ||
2699 event.GetType() == WebInputEvent::kGestureTap) {
2700 delegate_->FocusOwningWebContents(this);
2701 }
2702 delegate_->DidReceiveInputEvent(this, event.GetType());
2703 }
2704
2705 return view_ ? view_->FilterInputEvent(event)
2706 : INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
2707 }
2708
IncrementInFlightEventCount()2709 void RenderWidgetHostImpl::IncrementInFlightEventCount() {
2710 ++in_flight_event_count_;
2711 if (!is_hidden_)
2712 StartInputEventAckTimeout();
2713 }
2714
DecrementInFlightEventCount(InputEventAckSource ack_source)2715 void RenderWidgetHostImpl::DecrementInFlightEventCount(
2716 InputEventAckSource ack_source) {
2717 --in_flight_event_count_;
2718 if (in_flight_event_count_ <= 0) {
2719 // Cancel pending hung renderer checks since the renderer is responsive.
2720 StopInputEventAckTimeout();
2721 } else {
2722 // Only restart the hang monitor timer if we got a response from the
2723 // main thread.
2724 if (ack_source == InputEventAckSource::MAIN_THREAD)
2725 RestartInputEventAckTimeoutIfNecessary();
2726 }
2727 }
2728
OnHasTouchEventHandlers(bool has_handlers)2729 void RenderWidgetHostImpl::OnHasTouchEventHandlers(bool has_handlers) {
2730 input_router_->OnHasTouchEventHandlers(has_handlers);
2731 has_touch_handler_ = has_handlers;
2732 }
2733
OnIntrinsicSizingInfoChanged(blink::WebIntrinsicSizingInfo info)2734 void RenderWidgetHostImpl::OnIntrinsicSizingInfoChanged(
2735 blink::WebIntrinsicSizingInfo info) {
2736 if (view_)
2737 view_->UpdateIntrinsicSizingInfo(info);
2738 }
2739
DidOverscroll(const ui::DidOverscrollParams & params)2740 void RenderWidgetHostImpl::DidOverscroll(
2741 const ui::DidOverscrollParams& params) {
2742 if (view_)
2743 view_->DidOverscroll(params);
2744 }
2745
DidStopFlinging()2746 void RenderWidgetHostImpl::DidStopFlinging() {
2747 is_in_touchpad_gesture_fling_ = false;
2748 if (view_)
2749 view_->DidStopFlinging();
2750 }
2751
DidStartScrollingViewport()2752 void RenderWidgetHostImpl::DidStartScrollingViewport() {
2753 if (view_)
2754 view_->set_is_currently_scrolling_viewport(true);
2755 }
2756
AddPendingUserActivation(const WebInputEvent & event)2757 void RenderWidgetHostImpl::AddPendingUserActivation(
2758 const WebInputEvent& event) {
2759 if ((base::FeatureList::IsEnabled(
2760 features::kBrowserVerifiedUserActivationMouse) &&
2761 event.GetType() == WebInputEvent::kMouseDown) ||
2762 (base::FeatureList::IsEnabled(
2763 features::kBrowserVerifiedUserActivationKeyboard) &&
2764 (event.GetType() == WebInputEvent::kKeyDown ||
2765 event.GetType() == WebInputEvent::kRawKeyDown))) {
2766 pending_user_activation_timer_.Start(
2767 FROM_HERE, kActivationNotificationExpireTime,
2768 base::BindOnce(&RenderWidgetHostImpl::ClearPendingUserActivation,
2769 base::Unretained(this)));
2770 pending_user_activation_counter_++;
2771 }
2772 }
2773
ClearPendingUserActivation()2774 void RenderWidgetHostImpl::ClearPendingUserActivation() {
2775 pending_user_activation_counter_ = 0;
2776 pending_user_activation_timer_.Stop();
2777 }
2778
RemovePendingUserActivationIfAvailable()2779 bool RenderWidgetHostImpl::RemovePendingUserActivationIfAvailable() {
2780 if (pending_user_activation_counter_ > 0) {
2781 pending_user_activation_counter_--;
2782 return true;
2783 }
2784 return false;
2785 }
2786
2787 const mojo::AssociatedRemote<blink::mojom::FrameWidget>&
GetAssociatedFrameWidget()2788 RenderWidgetHostImpl::GetAssociatedFrameWidget() {
2789 return blink_frame_widget_;
2790 }
2791
DispatchInputEventWithLatencyInfo(const blink::WebInputEvent & event,ui::LatencyInfo * latency)2792 void RenderWidgetHostImpl::DispatchInputEventWithLatencyInfo(
2793 const blink::WebInputEvent& event,
2794 ui::LatencyInfo* latency) {
2795 latency_tracker_.OnInputEvent(event, latency);
2796 AddPendingUserActivation(event);
2797 for (auto& observer : input_event_observers_)
2798 observer.OnInputEvent(event);
2799 }
2800
OnWheelEventAck(const MouseWheelEventWithLatencyInfo & wheel_event,InputEventAckSource ack_source,InputEventAckState ack_result)2801 void RenderWidgetHostImpl::OnWheelEventAck(
2802 const MouseWheelEventWithLatencyInfo& wheel_event,
2803 InputEventAckSource ack_source,
2804 InputEventAckState ack_result) {
2805 latency_tracker_.OnInputEventAck(wheel_event.event, &wheel_event.latency,
2806 ack_result);
2807 for (auto& input_event_observer : input_event_observers_)
2808 input_event_observer.OnInputEventAck(ack_source, ack_result,
2809 wheel_event.event);
2810
2811 if (!is_hidden() && view_) {
2812 if (ack_result != INPUT_EVENT_ACK_STATE_CONSUMED &&
2813 delegate_ && delegate_->HandleWheelEvent(wheel_event.event)) {
2814 ack_result = INPUT_EVENT_ACK_STATE_CONSUMED;
2815 }
2816 view_->WheelEventAck(wheel_event.event, ack_result);
2817 }
2818 }
2819
OnGestureEventAck(const GestureEventWithLatencyInfo & event,InputEventAckSource ack_source,InputEventAckState ack_result)2820 void RenderWidgetHostImpl::OnGestureEventAck(
2821 const GestureEventWithLatencyInfo& event,
2822 InputEventAckSource ack_source,
2823 InputEventAckState ack_result) {
2824 latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
2825 for (auto& input_event_observer : input_event_observers_)
2826 input_event_observer.OnInputEventAck(ack_source, ack_result, event.event);
2827
2828 // If the TouchEmulator didn't exist when this GestureEvent was sent, we
2829 // shouldn't create it here.
2830 if (auto* touch_emulator = GetExistingTouchEmulator())
2831 touch_emulator->OnGestureEventAck(event.event, GetView());
2832
2833 if (view_)
2834 view_->GestureEventAck(event.event, ack_result);
2835 }
2836
OnTouchEventAck(const TouchEventWithLatencyInfo & event,InputEventAckSource ack_source,InputEventAckState ack_result)2837 void RenderWidgetHostImpl::OnTouchEventAck(
2838 const TouchEventWithLatencyInfo& event,
2839 InputEventAckSource ack_source,
2840 InputEventAckState ack_result) {
2841 latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
2842 for (auto& input_event_observer : input_event_observers_)
2843 input_event_observer.OnInputEventAck(ack_source, ack_result, event.event);
2844
2845 auto* input_event_router =
2846 delegate() ? delegate()->GetInputEventRouter() : nullptr;
2847
2848 // At present interstitial pages might not have an input event router, so we
2849 // just have the view process the ack directly in that case; the view is
2850 // guaranteed to be a top-level view with an appropriate implementation of
2851 // ProcessAckedTouchEvent().
2852 if (input_event_router)
2853 input_event_router->ProcessAckedTouchEvent(event, ack_result, view_.get());
2854 else if (view_)
2855 view_->ProcessAckedTouchEvent(event, ack_result);
2856 }
2857
IsIgnoringInputEvents() const2858 bool RenderWidgetHostImpl::IsIgnoringInputEvents() const {
2859 return process_->IsBlocked() || !delegate_ ||
2860 delegate_->ShouldIgnoreInputEvents();
2861 }
2862
GotResponseToLockMouseRequest(blink::mojom::PointerLockResult response)2863 bool RenderWidgetHostImpl::GotResponseToLockMouseRequest(
2864 blink::mojom::PointerLockResult response) {
2865 if (response != blink::mojom::PointerLockResult::kSuccess) {
2866 RejectMouseLockOrUnlockIfNecessary(response);
2867 }
2868 if (!pending_mouse_lock_request_) {
2869 // This is possible, e.g., the plugin sends us an unlock request before
2870 // the user allows to lock to mouse.
2871 return false;
2872 }
2873
2874 DCHECK(request_mouse_callback_);
2875 pending_mouse_lock_request_ = false;
2876 if (view_ && view_->HasFocus()) {
2877 blink::mojom::PointerLockResult result =
2878 view_->LockMouse(mouse_lock_raw_movement_);
2879 std::move(request_mouse_callback_).Run(result);
2880 return result == blink::mojom::PointerLockResult::kSuccess;
2881 }
2882
2883 std::move(request_mouse_callback_)
2884 .Run(blink::mojom::PointerLockResult::kWrongDocument);
2885 return false;
2886 }
2887
GotResponseToKeyboardLockRequest(bool allowed)2888 void RenderWidgetHostImpl::GotResponseToKeyboardLockRequest(bool allowed) {
2889 DCHECK(keyboard_lock_requested_);
2890 keyboard_lock_allowed_ = allowed;
2891
2892 if (keyboard_lock_allowed_)
2893 LockKeyboard();
2894 else
2895 UnlockKeyboard();
2896 }
2897
DetachDelegate()2898 void RenderWidgetHostImpl::DetachDelegate() {
2899 delegate_ = nullptr;
2900 latency_tracker_.reset_delegate();
2901 }
2902
WindowSnapshotReachedScreen(int snapshot_id)2903 void RenderWidgetHostImpl::WindowSnapshotReachedScreen(int snapshot_id) {
2904 DCHECK(base::MessageLoopCurrentForUI::IsSet());
2905
2906 if (!pending_surface_browser_snapshots_.empty()) {
2907 GetView()->CopyFromSurface(
2908 gfx::Rect(), gfx::Size(),
2909 base::BindOnce(&RenderWidgetHostImpl::OnSnapshotFromSurfaceReceived,
2910 weak_factory_.GetWeakPtr(), snapshot_id, 0));
2911 }
2912
2913 if (!pending_browser_snapshots_.empty()) {
2914 #if defined(OS_ANDROID)
2915 // On Android, call sites should pass in the bounds with correct offset
2916 // to capture the intended content area.
2917 gfx::Rect snapshot_bounds(GetView()->GetViewBounds());
2918 snapshot_bounds.Offset(0, GetView()->GetNativeView()->content_offset());
2919 #else
2920 gfx::Rect snapshot_bounds(GetView()->GetViewBounds().size());
2921 #endif
2922
2923 gfx::Image image;
2924 if (ui::GrabViewSnapshot(GetView()->GetNativeView(), snapshot_bounds,
2925 &image)) {
2926 OnSnapshotReceived(snapshot_id, image);
2927 return;
2928 }
2929
2930 ui::GrabViewSnapshotAsync(
2931 GetView()->GetNativeView(), snapshot_bounds,
2932 base::BindOnce(&RenderWidgetHostImpl::OnSnapshotReceived,
2933 weak_factory_.GetWeakPtr(), snapshot_id));
2934 }
2935 }
2936
OnSnapshotFromSurfaceReceived(int snapshot_id,int retry_count,const SkBitmap & bitmap)2937 void RenderWidgetHostImpl::OnSnapshotFromSurfaceReceived(
2938 int snapshot_id,
2939 int retry_count,
2940 const SkBitmap& bitmap) {
2941 static constexpr int kMaxRetries = 5;
2942 if (bitmap.drawsNothing() && retry_count < kMaxRetries) {
2943 GetView()->CopyFromSurface(
2944 gfx::Rect(), gfx::Size(),
2945 base::BindOnce(&RenderWidgetHostImpl::OnSnapshotFromSurfaceReceived,
2946 weak_factory_.GetWeakPtr(), snapshot_id,
2947 retry_count + 1));
2948 return;
2949 }
2950 // If all retries have failed, we return an empty image.
2951 gfx::Image image;
2952 if (!bitmap.drawsNothing())
2953 image = gfx::Image::CreateFrom1xBitmap(bitmap);
2954 // Any pending snapshots with a lower ID than the one received are considered
2955 // to be implicitly complete, and returned the same snapshot data.
2956 auto it = pending_surface_browser_snapshots_.begin();
2957 while (it != pending_surface_browser_snapshots_.end()) {
2958 if (it->first <= snapshot_id) {
2959 std::move(it->second).Run(image);
2960 pending_surface_browser_snapshots_.erase(it++);
2961 } else {
2962 ++it;
2963 }
2964 }
2965 }
2966
OnSnapshotReceived(int snapshot_id,gfx::Image image)2967 void RenderWidgetHostImpl::OnSnapshotReceived(int snapshot_id,
2968 gfx::Image image) {
2969 // Any pending snapshots with a lower ID than the one received are considered
2970 // to be implicitly complete, and returned the same snapshot data.
2971 auto it = pending_browser_snapshots_.begin();
2972 while (it != pending_browser_snapshots_.end()) {
2973 if (it->first <= snapshot_id) {
2974 std::move(it->second).Run(image);
2975 pending_browser_snapshots_.erase(it++);
2976 } else {
2977 ++it;
2978 }
2979 }
2980 #if defined(OS_MACOSX)
2981 if (pending_browser_snapshots_.empty())
2982 GetWakeLock()->CancelWakeLock();
2983 #endif
2984 }
2985
2986 BrowserAccessibilityManager*
GetRootBrowserAccessibilityManager()2987 RenderWidgetHostImpl::GetRootBrowserAccessibilityManager() {
2988 return delegate_ ? delegate_->GetRootBrowserAccessibilityManager() : nullptr;
2989 }
2990
2991 BrowserAccessibilityManager*
GetOrCreateRootBrowserAccessibilityManager()2992 RenderWidgetHostImpl::GetOrCreateRootBrowserAccessibilityManager() {
2993 return delegate_ ? delegate_->GetOrCreateRootBrowserAccessibilityManager()
2994 : nullptr;
2995 }
2996
GrantFileAccessFromDropData(DropData * drop_data)2997 void RenderWidgetHostImpl::GrantFileAccessFromDropData(DropData* drop_data) {
2998 DCHECK_EQ(GetRoutingID(), drop_data->view_id);
2999 RenderProcessHost* process = GetProcess();
3000 PrepareDropDataForChildProcess(
3001 drop_data, ChildProcessSecurityPolicyImpl::GetInstance(),
3002 process->GetID(), process->GetStoragePartition()->GetFileSystemContext());
3003 }
3004
RequestCompositionUpdates(bool immediate_request,bool monitor_updates)3005 void RenderWidgetHostImpl::RequestCompositionUpdates(bool immediate_request,
3006 bool monitor_updates) {
3007 if (!immediate_request && monitor_updates == monitoring_composition_info_)
3008 return;
3009 monitoring_composition_info_ = monitor_updates;
3010 GetWidgetInputHandler()->RequestCompositionUpdates(immediate_request,
3011 monitor_updates);
3012 }
3013
RequestCompositorFrameSink(mojo::PendingReceiver<viz::mojom::CompositorFrameSink> compositor_frame_sink_receiver,mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient> compositor_frame_sink_client)3014 void RenderWidgetHostImpl::RequestCompositorFrameSink(
3015 mojo::PendingReceiver<viz::mojom::CompositorFrameSink>
3016 compositor_frame_sink_receiver,
3017 mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient>
3018 compositor_frame_sink_client) {
3019 // Connects the viz process end of CompositorFrameSink message pipes. The
3020 // renderer compositor may request a new CompositorFrameSink on context
3021 // loss, which will destroy the existing CompositorFrameSink.
3022 auto callback = base::BindOnce(
3023 [](mojo::PendingReceiver<viz::mojom::CompositorFrameSink> receiver,
3024 mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient> client,
3025 const viz::FrameSinkId& frame_sink_id) {
3026 GetHostFrameSinkManager()->CreateCompositorFrameSink(
3027 frame_sink_id, std::move(receiver), std::move(client));
3028 },
3029 std::move(compositor_frame_sink_receiver),
3030 std::move(compositor_frame_sink_client));
3031
3032 if (view_)
3033 std::move(callback).Run(view_->GetFrameSinkId());
3034 else
3035 create_frame_sink_callback_ = std::move(callback);
3036 }
3037
RegisterRenderFrameMetadataObserver(mojo::PendingReceiver<mojom::RenderFrameMetadataObserverClient> render_frame_metadata_observer_client_receiver,mojo::PendingRemote<mojom::RenderFrameMetadataObserver> render_frame_metadata_observer)3038 void RenderWidgetHostImpl::RegisterRenderFrameMetadataObserver(
3039 mojo::PendingReceiver<mojom::RenderFrameMetadataObserverClient>
3040 render_frame_metadata_observer_client_receiver,
3041 mojo::PendingRemote<mojom::RenderFrameMetadataObserver>
3042 render_frame_metadata_observer) {
3043 render_frame_metadata_provider_.Bind(
3044 std::move(render_frame_metadata_observer_client_receiver),
3045 std::move(render_frame_metadata_observer));
3046 }
3047
HasGestureStopped()3048 bool RenderWidgetHostImpl::HasGestureStopped() {
3049 if (delegate_ && delegate_->GetInputEventRouter() &&
3050 delegate_->GetInputEventRouter()->HasEventsPendingDispatch()) {
3051 return false;
3052 }
3053
3054 if (input_router_->HasPendingEvents())
3055 return false;
3056
3057 std::unique_ptr<RenderWidgetHostIterator> child_widgets(
3058 GetEmbeddedRenderWidgetHosts());
3059 while (RenderWidgetHost* child = child_widgets->GetNextHost()) {
3060 auto* child_impl = static_cast<RenderWidgetHostImpl*>(child);
3061 if (!child_impl->HasGestureStopped()) {
3062 return false;
3063 }
3064 }
3065
3066 return true;
3067 }
3068
DidProcessFrame(uint32_t frame_token)3069 void RenderWidgetHostImpl::DidProcessFrame(uint32_t frame_token) {
3070 frame_token_message_queue_->DidProcessFrame(frame_token);
3071 }
3072
3073 #if defined(OS_MACOSX)
GetWakeLock()3074 device::mojom::WakeLock* RenderWidgetHostImpl::GetWakeLock() {
3075 // Here is a lazy binding, and will not reconnect after connection error.
3076 if (!wake_lock_) {
3077 mojo::Remote<device::mojom::WakeLockProvider> wake_lock_provider;
3078 GetDeviceService().BindWakeLockProvider(
3079 wake_lock_provider.BindNewPipeAndPassReceiver());
3080 wake_lock_provider->GetWakeLockWithoutContext(
3081 device::mojom::WakeLockType::kPreventDisplaySleep,
3082 device::mojom::WakeLockReason::kOther, "GetSnapshot",
3083 wake_lock_.BindNewPipeAndPassReceiver());
3084 }
3085 return wake_lock_.get();
3086 }
3087 #endif
3088
SetupInputRouter()3089 void RenderWidgetHostImpl::SetupInputRouter() {
3090 in_flight_event_count_ = 0;
3091 suppress_events_until_keydown_ = false;
3092 monitoring_composition_info_ = false;
3093 StopInputEventAckTimeout();
3094 associated_widget_input_handler_.reset();
3095 widget_input_handler_.reset();
3096
3097 input_router_ = std::make_unique<InputRouterImpl>(
3098 this, this, fling_scheduler_.get(), GetInputRouterConfigForPlatform());
3099
3100 // input_router_ recreated, need to update the force_enable_zoom_ state.
3101 input_router_->SetForceEnableZoom(force_enable_zoom_);
3102
3103 if (IsUseZoomForDSFEnabled()) {
3104 input_router_->SetDeviceScaleFactor(GetScaleFactorForView(view_.get()));
3105 }
3106 }
3107
SetForceEnableZoom(bool enabled)3108 void RenderWidgetHostImpl::SetForceEnableZoom(bool enabled) {
3109 force_enable_zoom_ = enabled;
3110 input_router_->SetForceEnableZoom(enabled);
3111 }
3112
SetFrameInputHandler(mojom::FrameInputHandler * frame_input_handler)3113 void RenderWidgetHostImpl::SetFrameInputHandler(
3114 mojom::FrameInputHandler* frame_input_handler) {
3115 if (!frame_input_handler)
3116 return;
3117 frame_input_handler->GetWidgetInputHandler(
3118 associated_widget_input_handler_.BindNewEndpointAndPassReceiver(),
3119 input_router_->BindNewFrameHost());
3120 }
3121
SetInputTargetClient(mojo::Remote<viz::mojom::InputTargetClient> input_target_client)3122 void RenderWidgetHostImpl::SetInputTargetClient(
3123 mojo::Remote<viz::mojom::InputTargetClient> input_target_client) {
3124 input_target_client_ = std::move(input_target_client);
3125 }
3126
SetWidget(mojo::PendingRemote<mojom::Widget> widget_remote)3127 void RenderWidgetHostImpl::SetWidget(
3128 mojo::PendingRemote<mojom::Widget> widget_remote) {
3129 if (!widget_remote)
3130 return;
3131
3132 // If we have a bound handler ensure that we destroy the old input router
3133 // while we reset the |widget_input_handler_|.
3134 if (widget_input_handler_.is_bound())
3135 SetupInputRouter();
3136
3137 mojo::Remote<mojom::Widget> widget(std::move(widget_remote));
3138 widget->SetupWidgetInputHandler(
3139 widget_input_handler_.BindNewPipeAndPassReceiver(),
3140 input_router_->BindNewHost());
3141 }
3142
ProgressFlingIfNeeded(TimeTicks current_time)3143 void RenderWidgetHostImpl::ProgressFlingIfNeeded(TimeTicks current_time) {
3144 fling_scheduler_->ProgressFlingOnBeginFrameIfneeded(current_time);
3145 }
3146
ForceFirstFrameAfterNavigationTimeout()3147 void RenderWidgetHostImpl::ForceFirstFrameAfterNavigationTimeout() {
3148 if (!new_content_rendering_timeout_ ||
3149 !new_content_rendering_timeout_->IsRunning()) {
3150 return;
3151 }
3152 new_content_rendering_timeout_->Stop();
3153 ClearDisplayedGraphics();
3154 }
3155
StopFling()3156 void RenderWidgetHostImpl::StopFling() {
3157 input_router_->StopFling();
3158 }
3159
SetScreenOrientationForTesting(uint16_t angle,ScreenOrientationValues type)3160 void RenderWidgetHostImpl::SetScreenOrientationForTesting(
3161 uint16_t angle,
3162 ScreenOrientationValues type) {
3163 screen_orientation_angle_for_testing_ = angle;
3164 screen_orientation_type_for_testing_ = type;
3165 SynchronizeVisualProperties();
3166 }
3167
LockKeyboard()3168 bool RenderWidgetHostImpl::LockKeyboard() {
3169 if (!keyboard_lock_allowed_ || !is_focused_ || !view_)
3170 return false;
3171
3172 // KeyboardLock can be activated and deactivated several times per request,
3173 // for example when a fullscreen tab loses and gains focus multiple times,
3174 // so we need to retain a copy of the keys requested.
3175 base::Optional<base::flat_set<ui::DomCode>> copy = keyboard_keys_to_lock_;
3176 return view_->LockKeyboard(std::move(copy));
3177 }
3178
UnlockKeyboard()3179 void RenderWidgetHostImpl::UnlockKeyboard() {
3180 if (IsKeyboardLocked())
3181 view_->UnlockKeyboard();
3182 }
3183
OnRenderFrameMetadataChangedBeforeActivation(const cc::RenderFrameMetadata & metadata)3184 void RenderWidgetHostImpl::OnRenderFrameMetadataChangedBeforeActivation(
3185 const cc::RenderFrameMetadata& metadata) {}
3186
OnRenderFrameMetadataChangedAfterActivation()3187 void RenderWidgetHostImpl::OnRenderFrameMetadataChangedAfterActivation() {
3188 const auto& metadata =
3189 render_frame_metadata_provider_.LastRenderFrameMetadata();
3190
3191 bool is_mobile_optimized = metadata.is_mobile_optimized;
3192 input_router_->NotifySiteIsMobileOptimized(is_mobile_optimized);
3193 if (auto* touch_emulator = GetExistingTouchEmulator())
3194 touch_emulator->SetDoubleTapSupportForPageEnabled(!is_mobile_optimized);
3195
3196 // The value |kNull| is only used to indicate an absence of vertical scroll
3197 // direction and should therefore be ignored.
3198 if (metadata.new_vertical_scroll_direction ==
3199 viz::VerticalScrollDirection::kNull) {
3200 return;
3201 }
3202
3203 // Changes in vertical scroll direction are only propagated for main frames.
3204 // If there is no |owner_delegate|, this is not a main frame.
3205 if (!owner_delegate())
3206 return;
3207
3208 if (!delegate())
3209 return;
3210
3211 delegate()->OnVerticalScrollDirectionChanged(
3212 metadata.new_vertical_scroll_direction);
3213 }
3214
3215 std::vector<viz::SurfaceId>
CollectSurfaceIdsForEviction()3216 RenderWidgetHostImpl::CollectSurfaceIdsForEviction() {
3217 RenderViewHostImpl* rvh = RenderViewHostImpl::From(this);
3218 // A corresponding RenderViewHostImpl may not exist in unit tests.
3219 if (!rvh)
3220 return {};
3221 return rvh->CollectSurfaceIdsForEviction();
3222 }
3223
3224 std::unique_ptr<RenderWidgetHostIterator>
GetEmbeddedRenderWidgetHosts()3225 RenderWidgetHostImpl::GetEmbeddedRenderWidgetHosts() {
3226 // This iterates over all RenderWidgetHosts and returns those whose Views
3227 // are children of this host's View.
3228 auto hosts = std::make_unique<RenderWidgetHostIteratorImpl>();
3229 auto* parent_view = static_cast<RenderWidgetHostViewBase*>(GetView());
3230 for (auto& it : g_routing_id_widget_map.Get()) {
3231 RenderWidgetHost* widget = it.second;
3232
3233 auto* view = static_cast<RenderWidgetHostViewBase*>(widget->GetView());
3234 if (view && view->IsRenderWidgetHostViewChildFrame() &&
3235 static_cast<RenderWidgetHostViewChildFrame*>(view)->GetParentView() ==
3236 parent_view) {
3237 hosts->Add(widget);
3238 }
3239 }
3240
3241 return std::move(hosts);
3242 }
3243
3244 namespace {
3245
TransformPointAndRectToRootView(RenderWidgetHostViewBase * view,RenderWidgetHostViewBase * root_view,gfx::Point * transformed_point,gfx::Rect * transformed_rect)3246 bool TransformPointAndRectToRootView(RenderWidgetHostViewBase* view,
3247 RenderWidgetHostViewBase* root_view,
3248 gfx::Point* transformed_point,
3249 gfx::Rect* transformed_rect) {
3250 gfx::Transform transform_to_main_frame;
3251 if (!view->GetTransformToViewCoordSpace(root_view, &transform_to_main_frame))
3252 return false;
3253
3254 if (transformed_point)
3255 transform_to_main_frame.TransformPoint(transformed_point);
3256
3257 if (transformed_rect) {
3258 gfx::RectF transformed_rect_f(*transformed_rect);
3259 transform_to_main_frame.TransformRect(&transformed_rect_f);
3260 *transformed_rect = gfx::ToEnclosingRect(transformed_rect_f);
3261 }
3262
3263 return true;
3264 }
3265
3266 } // namespace
3267
OnAnimateDoubleTapZoomInMainFrame(const gfx::Point & point,const gfx::Rect & rect_to_zoom)3268 void RenderWidgetHostImpl::OnAnimateDoubleTapZoomInMainFrame(
3269 const gfx::Point& point,
3270 const gfx::Rect& rect_to_zoom) {
3271 if (!view_)
3272 return;
3273
3274 auto* root_view = view_->GetRootView();
3275 gfx::Point transformed_point(point);
3276 gfx::Rect transformed_rect_to_zoom(rect_to_zoom);
3277 if (!TransformPointAndRectToRootView(view_.get(), root_view,
3278 &transformed_point,
3279 &transformed_rect_to_zoom)) {
3280 return;
3281 }
3282
3283 auto* root_rvhi = RenderViewHostImpl::From(root_view->GetRenderWidgetHost());
3284 root_rvhi->AnimateDoubleTapZoom(transformed_point, transformed_rect_to_zoom);
3285 }
3286
OnZoomToFindInPageRectInMainFrame(const gfx::Rect & rect_to_zoom)3287 void RenderWidgetHostImpl::OnZoomToFindInPageRectInMainFrame(
3288 const gfx::Rect& rect_to_zoom) {
3289 if (!view_)
3290 return;
3291
3292 auto* root_view = view_->GetRootView();
3293 gfx::Rect transformed_rect_to_zoom(rect_to_zoom);
3294 if (!TransformPointAndRectToRootView(view_.get(), root_view, nullptr,
3295 &transformed_rect_to_zoom)) {
3296 return;
3297 }
3298
3299 auto* root_rvhi = RenderViewHostImpl::From(root_view->GetRenderWidgetHost());
3300 root_rvhi->ZoomToFindInPageRect(transformed_rect_to_zoom);
3301 }
3302
GetRootWidgetViewportSize()3303 gfx::Size RenderWidgetHostImpl::GetRootWidgetViewportSize() {
3304 if (!view_)
3305 return gfx::Size();
3306
3307 // if |view_| is RWHVCF and |frame_connector_| is destroyed, then call to
3308 // GetRootView will return null pointer.
3309 auto* root_view = view_->GetRootView();
3310 if (!root_view)
3311 return gfx::Size();
3312
3313 return root_view->GetVisibleViewportSize();
3314 }
3315
3316 } // namespace content
3317