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Side by Side Diff: Source/core/page/CustomContextMenuProvider.cpp

Issue 243403006: Implement contextmenu attribute with basic support of <menu> (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Reflect HTMLMenuElement as per spec Created 6 years, 4 months ago
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1 // Copyright 2014 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 "config.h"
6 #include "core/page/CustomContextMenuProvider.h"
7
8 #include "core/dom/Document.h"
9 #include "core/dom/ElementTraversal.h"
10 #include "core/events/EventDispatcher.h"
11 #include "core/events/MouseEvent.h"
12 #include "core/html/HTMLMenuElement.h"
13 #include "core/html/HTMLMenuItemElement.h"
14 #include "core/page/ContextMenuController.h"
15 #include "core/page/Page.h"
16 #include "platform/ContextMenu.h"
17
18 namespace blink {
19
20 using namespace HTMLNames;
21
22 CustomContextMenuProvider::CustomContextMenuProvider(HTMLMenuElement& menu, HTML Element& subject)
23 : m_menu(menu)
24 , m_subjectElement(subject)
25 {
26 }
27
28 CustomContextMenuProvider::~CustomContextMenuProvider()
29 {
30 }
31
32 void CustomContextMenuProvider::populateContextMenu(ContextMenu* menu)
33 {
34 populateContextMenuItems(*m_menu, *menu);
35 }
36
37 void CustomContextMenuProvider::contextMenuItemSelected(const ContextMenuItem* i tem)
38 {
39 if (HTMLElement* element = menuItemAt(item->action())) {
40 RefPtrWillBeRawPtr<SimulatedMouseEvent> click = SimulatedMouseEvent::cre ate(EventTypeNames::click, m_menu->document().domWindow(), Event::create());
41 click->setRelatedTarget(m_subjectElement.get());
42 element->dispatchEvent(click.release());
43 }
44 }
45
46 void CustomContextMenuProvider::contextMenuCleared()
47 {
48 m_menuItems.clear();
49 m_subjectElement = nullptr;
50 }
51
52 void CustomContextMenuProvider::populateContextMenuItems(const HTMLMenuElement& menu, ContextMenu& contextMenu)
53 {
54 HTMLElement* nextElement = Traversal<HTMLElement>::firstWithin(menu);
55 while (nextElement) {
56 if (isHTMLMenuElement(*nextElement)) {
57 ContextMenu subMenu;
58 populateContextMenuItems(*toHTMLMenuElement(nextElement), subMenu);
59 contextMenu.appendItem(ContextMenuItem(SubmenuType, ContextMenuItemC ustomTagNoAction, nextElement->fastGetAttribute(labelAttr), &subMenu));
60 nextElement = Traversal<HTMLElement>::nextSibling(*nextElement);
61 } else if (isHTMLMenuItemElement(*nextElement)) {
62 m_menuItems.append(nextElement);
63 contextMenu.appendItem(ContextMenuItem(ActionType, static_cast<Conte xtMenuAction>(ContextMenuItemBaseCustomTag + m_menuItems.size() - 1), nextElemen t->fastGetAttribute(labelAttr)));
64 if (ContextMenuItemBaseCustomTag + m_menuItems.size() >= ContextMenu ItemLastCustomTag)
65 break;
66 nextElement = Traversal<HTMLElement>::next(*nextElement, &menu);
67 } else {
68 nextElement = Traversal<HTMLElement>::next(*nextElement, &menu);
69 }
70 }
71 }
72
73 HTMLElement* CustomContextMenuProvider::menuItemAt(unsigned menuId)
74 {
75 int itemIndex = menuId - ContextMenuItemBaseCustomTag;
76 if (itemIndex < 0 || static_cast<unsigned long>(itemIndex) >= m_menuItems.si ze())
77 return 0;
78 return m_menuItems[itemIndex].get();
79 }
80
81 } // namespace blink
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