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/KeyboardEvent.h"
8 #include "mozilla/dom/KeyboardEventBinding.h"
9 #include "mozilla/dom/Element.h"
10 #include "nsIFrame.h"
11 #include "nsMenuBarFrame.h"
12 #include "nsMenuBarListener.h"
13 #include "nsMenuFrame.h"
14 #include "nsMenuPopupFrame.h"
15 #include "mozilla/dom/XULMenuElement.h"
16 #include "mozilla/dom/XULMenuElementBinding.h"
17 #include "nsXULPopupManager.h"
18
19 namespace mozilla {
20 namespace dom {
21
WrapNode(JSContext * aCx,JS::Handle<JSObject * > aGivenProto)22 JSObject* XULMenuElement::WrapNode(JSContext* aCx,
23 JS::Handle<JSObject*> aGivenProto) {
24 return XULMenuElement_Binding::Wrap(aCx, this, aGivenProto);
25 }
26
GetActiveChild()27 already_AddRefed<Element> XULMenuElement::GetActiveChild() {
28 nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
29 if (menu) {
30 RefPtr<Element> el;
31 menu->GetActiveChild(getter_AddRefs(el));
32 return el.forget();
33 }
34 return nullptr;
35 }
36
SetActiveChild(Element * arg)37 void XULMenuElement::SetActiveChild(Element* arg) {
38 nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
39 if (menu) {
40 menu->SetActiveChild(arg);
41 }
42 }
43
HandleKeyPress(KeyboardEvent & keyEvent)44 bool XULMenuElement::HandleKeyPress(KeyboardEvent& keyEvent) {
45 nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
46 if (!pm) {
47 return false;
48 }
49
50 // if event has already been handled, bail
51 if (keyEvent.DefaultPrevented()) {
52 return false;
53 }
54
55 if (nsMenuBarListener::IsAccessKeyPressed(&keyEvent)) return false;
56
57 nsMenuFrame* menu = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
58 if (!menu) {
59 return false;
60 }
61
62 nsMenuPopupFrame* popupFrame = menu->GetPopup();
63 if (!popupFrame) {
64 return false;
65 }
66
67 uint32_t keyCode = keyEvent.KeyCode();
68 switch (keyCode) {
69 case KeyboardEvent_Binding::DOM_VK_UP:
70 case KeyboardEvent_Binding::DOM_VK_DOWN:
71 case KeyboardEvent_Binding::DOM_VK_HOME:
72 case KeyboardEvent_Binding::DOM_VK_END: {
73 nsNavigationDirection theDirection;
74 theDirection = NS_DIRECTION_FROM_KEY_CODE(popupFrame, keyCode);
75 return pm->HandleKeyboardNavigationInPopup(popupFrame, theDirection);
76 }
77 default:
78 return pm->HandleShortcutNavigation(&keyEvent, popupFrame);
79 }
80 }
81
OpenedWithKey()82 bool XULMenuElement::OpenedWithKey() {
83 nsMenuFrame* menuframe = do_QueryFrame(GetPrimaryFrame(FlushType::Frames));
84 if (!menuframe) {
85 return false;
86 }
87
88 nsIFrame* frame = menuframe->GetParent();
89 while (frame) {
90 nsMenuBarFrame* menubar = do_QueryFrame(frame);
91 if (menubar) {
92 return menubar->IsActiveByKeyboard();
93 }
94 frame = frame->GetParent();
95 }
96 return false;
97 }
98
99 } // namespace dom
100 } // namespace mozilla
101