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.
5 #include "chrome/browser/ui/views/extensions/browser_action_overflow_menu_controller.h"
7 #include "base/message_loop/message_loop.h"
8 #include "base/strings/utf_string_conversions.h"
9 #include "chrome/browser/extensions/extension_action.h"
10 #include "chrome/browser/extensions/extension_action_manager.h"
11 #include "chrome/browser/extensions/extension_context_menu_model.h"
12 #include "chrome/browser/profiles/profile.h"
13 #include "chrome/browser/ui/browser_list.h"
14 #include "chrome/browser/ui/views/extensions/browser_action_drag_data.h"
15 #include "chrome/browser/ui/views/toolbar/browser_action_view.h"
16 #include "chrome/browser/ui/views/toolbar/browser_actions_container.h"
17 #include "extensions/common/extension.h"
18 #include "ui/gfx/canvas.h"
19 #include "ui/views/controls/menu/menu_item_view.h"
20 #include "ui/views/controls/menu/menu_runner.h"
21 #include "ui/views/controls/menu/submenu_view.h"
22 #include "ui/views/widget/widget.h"
24 // In the browser actions container's chevron menu, a menu item view's icon
25 // comes from BrowserActionView::GetIconWithBadge() when the menu item view is
26 // created. But, the browser action's icon may not be loaded in time because it
27 // is read from file system in another thread.
28 // The IconUpdater will update the menu item view's icon when the browser
29 // action's icon has been updated.
30 class IconUpdater : public BrowserActionView::IconObserver {
32 IconUpdater(views::MenuItemView* menu_item_view, BrowserActionView* view)
33 : menu_item_view_(menu_item_view),
35 DCHECK(menu_item_view);
37 view->set_icon_observer(this);
39 virtual ~IconUpdater() {
40 view_->set_icon_observer(NULL);
43 // Overridden from BrowserActionView::IconObserver:
44 virtual void OnIconUpdated(const gfx::ImageSkia& icon) OVERRIDE {
45 menu_item_view_->SetIcon(icon);
49 // The menu item view whose icon might be updated.
50 views::MenuItemView* menu_item_view_;
52 // The view to be observed. When its icon changes, update the corresponding
53 // menu item view's icon.
54 BrowserActionView* view_;
56 DISALLOW_COPY_AND_ASSIGN(IconUpdater);
59 BrowserActionOverflowMenuController::BrowserActionOverflowMenuController(
60 BrowserActionsContainer* owner,
62 views::MenuButton* menu_button,
63 const std::vector<BrowserActionView*>& views,
69 menu_button_(menu_button),
72 start_index_(start_index),
74 menu_ = new views::MenuItemView(this);
75 menu_runner_.reset(new views::MenuRunner(
76 menu_, for_drop_ ? views::MenuRunner::FOR_DROP : 0));
77 menu_->set_has_icons(true);
79 size_t command_id = 1; // Menu id 0 is reserved, start with 1.
80 for (size_t i = start_index; i < views_->size(); ++i) {
81 BrowserActionView* view = (*views_)[i];
82 views::MenuItemView* menu_item = menu_->AppendMenuItemWithIcon(
84 base::UTF8ToUTF16(view->extension()->name()),
85 view->GetIconWithBadge());
87 // Set the tooltip for this item.
88 base::string16 tooltip = base::UTF8ToUTF16(
89 view->extension_action()->GetTitle(
90 view->view_controller()->GetCurrentTabId()));
91 menu_->SetTooltip(tooltip, command_id);
93 icon_updaters_.push_back(new IconUpdater(menu_item, view));
99 BrowserActionOverflowMenuController::~BrowserActionOverflowMenuController() {
101 observer_->NotifyMenuDeleted(this);
104 bool BrowserActionOverflowMenuController::RunMenu(views::Widget* window) {
105 gfx::Rect bounds = menu_button_->bounds();
106 gfx::Point screen_loc;
107 views::View::ConvertPointToScreen(menu_button_, &screen_loc);
108 bounds.set_x(screen_loc.x());
109 bounds.set_y(screen_loc.y());
111 views::MenuAnchorPosition anchor = views::MENU_ANCHOR_TOPRIGHT;
112 // As we maintain our own lifetime we can safely ignore the result.
113 ignore_result(menu_runner_->RunMenuAt(
114 window, menu_button_, bounds, anchor, ui::MENU_SOURCE_NONE));
116 // Give the context menu (if any) a chance to execute the user-selected
118 base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
123 void BrowserActionOverflowMenuController::CancelMenu() {
127 void BrowserActionOverflowMenuController::NotifyBrowserActionViewsDeleting() {
128 icon_updaters_.clear();
131 bool BrowserActionOverflowMenuController::IsCommandEnabled(int id) const {
132 BrowserActionView* view = (*views_)[start_index_ + id - 1];
133 return view->IsEnabled(view->view_controller()->GetCurrentTabId());
136 void BrowserActionOverflowMenuController::ExecuteCommand(int id) {
137 (*views_)[start_index_ + id - 1]->view_controller()->ExecuteActionByUser();
140 bool BrowserActionOverflowMenuController::ShowContextMenu(
141 views::MenuItemView* source,
144 ui::MenuSourceType source_type) {
145 BrowserActionView* view = (*views_)[start_index_ + id - 1];
146 if (!view->extension()->ShowConfigureContextMenus())
149 scoped_refptr<ExtensionContextMenuModel> context_menu_contents =
150 new ExtensionContextMenuModel(
151 view->extension(), browser_, view->view_controller());
152 views::MenuRunner context_menu_runner(context_menu_contents.get(),
153 views::MenuRunner::HAS_MNEMONICS |
154 views::MenuRunner::IS_NESTED |
155 views::MenuRunner::CONTEXT_MENU);
157 // We can ignore the result as we delete ourself.
158 // This blocks until the user choses something or dismisses the menu.
159 ignore_result(context_menu_runner.RunMenuAt(menu_button_->GetWidget(),
161 gfx::Rect(p, gfx::Size()),
162 views::MENU_ANCHOR_TOPLEFT,
165 // The user is done with the context menu, so we can close the underlying
172 void BrowserActionOverflowMenuController::DropMenuClosed(
173 views::MenuItemView* menu) {
177 bool BrowserActionOverflowMenuController::GetDropFormats(
178 views::MenuItemView* menu,
180 std::set<OSExchangeData::CustomFormat>* custom_formats) {
181 return BrowserActionDragData::GetDropFormats(custom_formats);
184 bool BrowserActionOverflowMenuController::AreDropTypesRequired(
185 views::MenuItemView* menu) {
186 return BrowserActionDragData::AreDropTypesRequired();
189 bool BrowserActionOverflowMenuController::CanDrop(
190 views::MenuItemView* menu, const OSExchangeData& data) {
191 return BrowserActionDragData::CanDrop(data, owner_->profile());
194 int BrowserActionOverflowMenuController::GetDropOperation(
195 views::MenuItemView* item,
196 const ui::DropTargetEvent& event,
197 DropPosition* position) {
198 // Don't allow dropping from the BrowserActionContainer into slot 0 of the
199 // overflow menu since once the move has taken place the item you are dragging
200 // falls right out of the menu again once the user releases the button
201 // (because we don't shrink the BrowserActionContainer when you do this).
202 if ((item->GetCommand() == 0) && (*position == DROP_BEFORE)) {
203 BrowserActionDragData drop_data;
204 if (!drop_data.Read(event.data()))
205 return ui::DragDropTypes::DRAG_NONE;
207 if (drop_data.index() < owner_->VisibleBrowserActions())
208 return ui::DragDropTypes::DRAG_NONE;
211 return ui::DragDropTypes::DRAG_MOVE;
214 int BrowserActionOverflowMenuController::OnPerformDrop(
215 views::MenuItemView* menu,
216 DropPosition position,
217 const ui::DropTargetEvent& event) {
218 BrowserActionDragData drop_data;
219 if (!drop_data.Read(event.data()))
220 return ui::DragDropTypes::DRAG_NONE;
223 ViewForId(menu->GetCommand(), &drop_index);
225 // When not dragging within the overflow menu (dragging an icon into the menu)
226 // subtract one to get the right index.
227 if (position == DROP_BEFORE &&
228 drop_data.index() < owner_->VisibleBrowserActions())
231 owner_->MoveBrowserAction(drop_data.id(), drop_index);
235 return ui::DragDropTypes::DRAG_MOVE;
238 bool BrowserActionOverflowMenuController::CanDrag(views::MenuItemView* menu) {
242 void BrowserActionOverflowMenuController::WriteDragData(
243 views::MenuItemView* sender, OSExchangeData* data) {
245 BrowserActionView* view = ViewForId(sender->GetCommand(), &drag_index);
246 BrowserActionDragData drag_data(view->extension()->id(), drag_index);
247 drag_data.Write(owner_->profile(), data);
250 int BrowserActionOverflowMenuController::GetDragOperations(
251 views::MenuItemView* sender) {
252 return ui::DragDropTypes::DRAG_MOVE;
255 BrowserActionView* BrowserActionOverflowMenuController::ViewForId(
256 int id, size_t* index) {
257 // The index of the view being dragged (GetCommand gives a 1-based index into
258 // the overflow menu).
259 size_t view_index = owner_->VisibleBrowserActions() + id - 1;
262 return owner_->GetBrowserActionViewAt(view_index);