1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "mozilla/dom/HTMLSummaryElement.h"
8
9 #include "mozilla/dom/HTMLDetailsElement.h"
10 #include "mozilla/dom/HTMLElementBinding.h"
11 #include "mozilla/dom/HTMLUnknownElement.h"
12 #include "mozilla/EventDispatcher.h"
13 #include "mozilla/MouseEvents.h"
14 #include "mozilla/Preferences.h"
15 #include "mozilla/TextEvents.h"
16 #include "nsFocusManager.h"
17
18 NS_IMPL_NS_NEW_HTML_ELEMENT(Summary)
19
20 namespace mozilla::dom {
21
22 HTMLSummaryElement::~HTMLSummaryElement() = default;
23
NS_IMPL_ELEMENT_CLONE(HTMLSummaryElement)24 NS_IMPL_ELEMENT_CLONE(HTMLSummaryElement)
25
26 nsresult HTMLSummaryElement::PostHandleEvent(EventChainPostVisitor& aVisitor) {
27 nsresult rv = NS_OK;
28 if (!aVisitor.mPresContext) {
29 return rv;
30 }
31
32 if (aVisitor.mEventStatus == nsEventStatus_eConsumeNoDefault) {
33 return rv;
34 }
35
36 if (!IsMainSummary()) {
37 return rv;
38 }
39
40 WidgetEvent* const event = aVisitor.mEvent;
41 nsCOMPtr<Element> target =
42 do_QueryInterface(event->GetOriginalDOMEventTarget());
43 if (nsContentUtils::IsInInteractiveHTMLContent(target, this)) {
44 return NS_OK;
45 }
46
47 if (event->HasMouseEventMessage()) {
48 WidgetMouseEvent* mouseEvent = event->AsMouseEvent();
49
50 if (mouseEvent->IsLeftClickEvent()) {
51 RefPtr<HTMLDetailsElement> details = GetDetails();
52 MOZ_ASSERT(details,
53 "Expected to find details since this is the main summary!");
54
55 // When dispatching a synthesized mouse click event to a details element
56 // with 'display: none', both Chrome and Safari do not toggle the 'open'
57 // attribute. We had tried to be compatible with this behavior, but found
58 // more inconsistency in test cases in bug 1245424. So we stop doing that.
59 details->ToggleOpen();
60 aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
61 return NS_OK;
62 }
63 } // event->HasMouseEventMessage()
64
65 HandleKeyboardActivation(aVisitor);
66 return rv;
67 }
68
IsHTMLFocusable(bool aWithMouse,bool * aIsFocusable,int32_t * aTabIndex)69 bool HTMLSummaryElement::IsHTMLFocusable(bool aWithMouse, bool* aIsFocusable,
70 int32_t* aTabIndex) {
71 bool disallowOverridingFocusability = nsGenericHTMLElement::IsHTMLFocusable(
72 aWithMouse, aIsFocusable, aTabIndex);
73
74 if (disallowOverridingFocusability || !IsMainSummary()) {
75 return disallowOverridingFocusability;
76 }
77
78 // The main summary element is focusable.
79 *aIsFocusable = true;
80
81 // Give a chance to allow the subclass to override aIsFocusable.
82 return false;
83 }
84
TabIndexDefault()85 int32_t HTMLSummaryElement::TabIndexDefault() {
86 // Make the main summary be able to navigate via tab, and be focusable.
87 // See nsGenericHTMLElement::IsHTMLFocusable().
88 return IsMainSummary() ? 0 : nsGenericHTMLElement::TabIndexDefault();
89 }
90
IsMainSummary() const91 bool HTMLSummaryElement::IsMainSummary() const {
92 HTMLDetailsElement* details = GetDetails();
93 if (!details) {
94 return false;
95 }
96
97 return details->GetFirstSummary() == this || IsRootOfNativeAnonymousSubtree();
98 }
99
GetDetails() const100 HTMLDetailsElement* HTMLSummaryElement::GetDetails() const {
101 return HTMLDetailsElement::FromNodeOrNull(GetParent());
102 }
103
WrapNode(JSContext * aCx,JS::Handle<JSObject * > aGivenProto)104 JSObject* HTMLSummaryElement::WrapNode(JSContext* aCx,
105 JS::Handle<JSObject*> aGivenProto) {
106 return HTMLElement_Binding::Wrap(aCx, this, aGivenProto);
107 }
108
109 } // namespace mozilla::dom
110