chrome/browser/ui/views/toolbar/extension_toolbar_menu_view.cc

   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 "chrome/browser/ui/views/toolbar/extension_toolbar_menu_view.h"
   6
   7 #include "base/bind.h"
   8 #include "base/location.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "base/time/time.h"
  12 #include "chrome/browser/ui/toolbar/toolbar_actions_bar.h"
  13 #include "chrome/browser/ui/views/frame/browser_view.h"
  14 #include "chrome/browser/ui/views/toolbar/browser_actions_container.h"
  15 #include "chrome/browser/ui/views/toolbar/toolbar_view.h"
  16 #include "chrome/browser/ui/views/toolbar/wrench_menu.h"
  17 #include "ui/views/controls/menu/menu_item_view.h"
  18 #include "ui/views/controls/menu/submenu_view.h"
  19
  20 ExtensionToolbarMenuView::ExtensionToolbarMenuView(Browser* browser,
  21                                                    WrenchMenu* wrench_menu)
  22     : browser_(browser),
  23       wrench_menu_(wrench_menu),
  24       container_(NULL),
  25       browser_actions_container_observer_(this),
  26       weak_factory_(this) {
  27   BrowserActionsContainer* main =
  28       BrowserView::GetBrowserViewForBrowser(browser_)
  29           ->toolbar()->browser_actions();
  30   container_ = new BrowserActionsContainer(browser_, main);
  31   container_->Init();
  32   AddChildView(container_);
  33   // We Layout() the container here so that we know the number of actions
  34   // that will be visible in ShouldShow().
  35   container_->Layout();
  36
  37   // If we were opened for a drop command, we have to wait for the drop to
  38   // finish so we can close the wrench menu.
  39   if (wrench_menu_->for_drop()) {
  40     browser_actions_container_observer_.Add(container_);
  41     browser_actions_container_observer_.Add(main);
  42   }
  43 }
  44
  45 ExtensionToolbarMenuView::~ExtensionToolbarMenuView() {
  46 }
  47
  48 bool ExtensionToolbarMenuView::ShouldShow() {
  49   return wrench_menu_->for_drop() ||
  50       container_->VisibleBrowserActionsAfterAnimation();
  51 }
  52
  53 gfx::Size ExtensionToolbarMenuView::GetPreferredSize() const {
  54   return container_->GetPreferredSize();
  55 }
  56
  57 int ExtensionToolbarMenuView::GetHeightForWidth(int width) const {
  58   const views::MenuConfig& menu_config =
  59       static_cast<const views::MenuItemView*>(parent())->GetMenuConfig();
  60   int end_padding = menu_config.arrow_to_edge_padding -
  61       container_->toolbar_actions_bar()->platform_settings().item_spacing;
  62   width -= start_padding() + end_padding;
  63
  64   int height = container_->GetHeightForWidth(width);
  65   return height;
  66 }
  67
  68 void ExtensionToolbarMenuView::Layout() {
  69   gfx::Size sz = GetPreferredSize();
  70   SetBounds(start_padding() + 1, 0, sz.width(), sz.height());
  71   container_->SetBounds(0, 0, sz.width(), sz.height());
  72 }
  73
  74 void ExtensionToolbarMenuView::OnBrowserActionDragDone() {
  75   // The delay before we close the wrench menu if this was opened for a drop so
  76   // that the user can see a browser action if one was moved.
  77   static const int kCloseMenuDelay = 300;
  78
  79   DCHECK(wrench_menu_->for_drop());
  80   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
  81       FROM_HERE, base::Bind(&ExtensionToolbarMenuView::CloseWrenchMenu,
  82                             weak_factory_.GetWeakPtr()),
  83       base::TimeDelta::FromMilliseconds(kCloseMenuDelay));
  84 }
  85
  86 void ExtensionToolbarMenuView::CloseWrenchMenu() {
  87   wrench_menu_->CloseMenu();
  88 }
  89
  90 int ExtensionToolbarMenuView::start_padding() const {
  91   // We pad enough on the left so that the first icon starts at the same point
  92   // as the labels. We need to subtract 1 because we want the pixel *before*
  93   // the label, and we subtract kItemSpacing because there needs to be padding
  94   // so we can see the drop indicator.
  95   return views::MenuItemView::label_start() - 1 -
  96       container_->toolbar_actions_bar()->platform_settings().item_spacing;
  97 }
  98