athena/content/web_contents_view_delegate_factory_impl.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 "athena/content/public/web_contents_view_delegate_creator.h"
   6
   7 #include "athena/content/render_view_context_menu_impl.h"
   8 #include "components/web_modal/popup_manager.h"
   9 #include "components/web_modal/single_web_contents_dialog_manager.h"
  10 #include "components/web_modal/web_contents_modal_dialog_host.h"
  11 #include "components/web_modal/web_contents_modal_dialog_manager.h"
  12 #include "content/public/browser/render_widget_host_view.h"
  13 #include "content/public/browser/web_contents.h"
  14 #include "content/public/browser/web_contents_delegate.h"
  15 #include "content/public/browser/web_contents_view_delegate.h"
  16 #include "ui/aura/client/screen_position_client.h"
  17 #include "ui/aura/window.h"
  18 #include "ui/views/widget/widget.h"
  19
  20 namespace athena {
  21 namespace {
  22
  23 class WebContentsViewDelegateImpl : public content::WebContentsViewDelegate {
  24  public:
  25   explicit WebContentsViewDelegateImpl(content::WebContents* web_contents)
  26       : web_contents_(web_contents) {}
  27   virtual ~WebContentsViewDelegateImpl() {}
  28
  29   virtual content::WebDragDestDelegate* GetDragDestDelegate() OVERRIDE {
  30     // TODO(oshima): crbug.com/401610
  31     return NULL;
  32   }
  33
  34   virtual bool Focus() OVERRIDE {
  35     web_modal::PopupManager* popup_manager =
  36         web_modal::PopupManager::FromWebContents(web_contents_);
  37     if (popup_manager)
  38       popup_manager->WasFocused(web_contents_);
  39     return false;
  40   }
  41
  42   virtual void ShowContextMenu(
  43       content::RenderFrameHost* render_frame_host,
  44       const content::ContextMenuParams& params) OVERRIDE {
  45     ShowMenu(BuildMenu(
  46         content::WebContents::FromRenderFrameHost(render_frame_host), params));
  47   }
  48
  49   virtual void SizeChanged(const gfx::Size& size) OVERRIDE {
  50     // TODO(oshima|sadrul): Implement this when sad_tab is componentized.
  51     // See c/b/ui/views/tab_contents/chrome_web_contents_view_delegate_views.cc
  52   }
  53
  54   scoped_ptr<RenderViewContextMenuImpl> BuildMenu(
  55       content::WebContents* web_contents,
  56       const content::ContextMenuParams& params) {
  57     scoped_ptr<RenderViewContextMenuImpl> menu;
  58     content::RenderFrameHost* focused_frame = web_contents->GetFocusedFrame();
  59     // If the frame tree does not have a focused frame at this point, do not
  60     // bother creating RenderViewContextMenuViews.
  61     // This happens if the frame has navigated to a different page before
  62     // ContextMenu message was received by the current RenderFrameHost.
  63     if (focused_frame) {
  64       menu.reset(new RenderViewContextMenuImpl(focused_frame, params));
  65       menu->Init();
  66     }
  67     return menu.Pass();
  68   }
  69
  70   void ShowMenu(scoped_ptr<RenderViewContextMenuImpl> menu) {
  71     context_menu_.reset(menu.release());
  72
  73     if (!context_menu_.get())
  74       return;
  75
  76     // Menus need a Widget to work. If we're not the active tab we won't
  77     // necessarily be in a widget.
  78     views::Widget* top_level_widget = GetTopLevelWidget();
  79     if (!top_level_widget)
  80       return;
  81
  82     const content::ContextMenuParams& params = context_menu_->params();
  83     // Don't show empty menus.
  84     if (context_menu_->menu_model().GetItemCount() == 0)
  85       return;
  86
  87     gfx::Point screen_point(params.x, params.y);
  88
  89     // Convert from target window coordinates to root window coordinates.
  90     aura::Window* target_window = GetActiveNativeView();
  91     aura::Window* root_window = target_window->GetRootWindow();
  92     aura::client::ScreenPositionClient* screen_position_client =
  93         aura::client::GetScreenPositionClient(root_window);
  94     if (screen_position_client) {
  95       screen_position_client->ConvertPointToScreen(target_window,
  96                                                    &screen_point);
  97     }
  98     // Enable recursive tasks on the message loop so we can get updates while
  99     // the context menu is being displayed.
 100     base::MessageLoop::ScopedNestableTaskAllower allow(
 101         base::MessageLoop::current());
 102     context_menu_->RunMenuAt(
 103         top_level_widget, screen_point, params.source_type);
 104   }
 105
 106   aura::Window* GetActiveNativeView() {
 107     return web_contents_->GetFullscreenRenderWidgetHostView()
 108                ? web_contents_->GetFullscreenRenderWidgetHostView()
 109                      ->GetNativeView()
 110                : web_contents_->GetNativeView();
 111   }
 112
 113   views::Widget* GetTopLevelWidget() {
 114     return views::Widget::GetTopLevelWidgetForNativeView(GetActiveNativeView());
 115   }
 116
 117   views::FocusManager* GetFocusManager() {
 118     views::Widget* toplevel_widget = GetTopLevelWidget();
 119     return toplevel_widget ? toplevel_widget->GetFocusManager() : NULL;
 120   }
 121
 122   void SetInitialFocus() {
 123     if (web_contents_->FocusLocationBarByDefault()) {
 124       if (web_contents_->GetDelegate())
 125         web_contents_->GetDelegate()->SetFocusToLocationBar(false);
 126     } else {
 127       web_contents_->Focus();
 128     }
 129   }
 130   scoped_ptr<RenderViewContextMenuImpl> context_menu_;
 131   content::WebContents* web_contents_;
 132   DISALLOW_COPY_AND_ASSIGN(WebContentsViewDelegateImpl);
 133 };
 134
 135 }  // namespace
 136
 137 content::WebContentsViewDelegate* CreateWebContentsViewDelegate(
 138     content::WebContents* web_contents) {
 139   return new WebContentsViewDelegateImpl(web_contents);
 140 }
 141
 142 }  // namespace athena
 143
 144 namespace web_modal {
 145
 146 SingleWebContentsDialogManager*
 147 WebContentsModalDialogManager::CreateNativeWebModalManager(
 148     NativeWebContentsModalDialog dialog,
 149     SingleWebContentsDialogManagerDelegate* native_delegate) {
 150   // TODO(oshima): Investigate if we need to implement this.
 151   NOTREACHED();
 152   return NULL;
 153 }
 154
 155 }  // namespace web_modal