chrome/browser/ui/views/javascript_app_modal_event_blocker_x11.h

   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 #ifndef CHROME_BROWSER_UI_VIEWS_JAVASCRIPT_APP_MODAL_EVENT_BLOCKER_X11_H_
   6 #define CHROME_BROWSER_UI_VIEWS_JAVASCRIPT_APP_MODAL_EVENT_BLOCKER_X11_H_
   7
   8 #include "ui/events/event_handler.h"
   9
  10 class BrowserView;
  11
  12 namespace aura {
  13 class Window;
  14 }
  15
  16 // JavascriptAppModalEventBlockerX11 blocks events to all browser windows except
  17 // the browser window which hosts |app_modal_window| for the duration of its
  18 // lifetime. JavascriptAppModalEventBlockerX11 should not outlive
  19 // |app_modal_window|.
  20 // TODO(pkotwicz): Merge this class into WindowModalityController.
  21 class JavascriptAppModalEventBlockerX11 : public ui::EventHandler {
  22  public:
  23   explicit JavascriptAppModalEventBlockerX11(aura::Window* app_modal_window);
  24   ~JavascriptAppModalEventBlockerX11() override;
  25
  26  private:
  27   // Returns true if the propagation of events to |target| should be stopped.
  28   bool ShouldStopPropagationTo(ui::EventTarget* target);
  29
  30   // ui::EventHandler:
  31   void OnKeyEvent(ui::KeyEvent* event) override;
  32   void OnMouseEvent(ui::MouseEvent* event) override;
  33   void OnScrollEvent(ui::ScrollEvent* event) override;
  34   void OnTouchEvent(ui::TouchEvent* event) override;
  35
  36   // The app modal dialog.
  37   aura::Window* modal_window_;
  38
  39   // The BrowserView which hosts the app modal dialog.
  40   BrowserView* browser_view_with_modal_dialog_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(JavascriptAppModalEventBlockerX11);
  43 };
  44
  45 #endif  // CHROME_BROWSER_UI_VIEWS_JAVASCRIPT_APP_MODAL_EVENT_BLOCKER_X11_H_