Aura: Support hovering restore & close buttons for full screen apps

chrome/browser/ui/views/frame/app_non_client_frame_view_aura.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_UI_VIEWS_FRAME_APP_NON_CLIENT_FRAME_VIEW_AURA_H_
+#define CHROME_BROWSER_UI_VIEWS_FRAME_APP_NON_CLIENT_FRAME_VIEW_AURA_H_
+#pragma once
+
+#include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
+#include "ui/base/animation/animation_delegate.h"
+#include "ui/views/controls/button/button.h"
+#include "ui/views/mouse_watcher.h"
+
+namespace aura {
+class Window;
+}
+
+namespace ui {
+class SlideAnimation;
+}
+
+// NonClientFrameViewAura implementation for apps.
+class AppNonClientFrameViewAura : public BrowserNonClientFrameView,
+                                  public views::MouseWatcherListener {
+ public:
+  AppNonClientFrameViewAura(
+      BrowserFrame* frame, BrowserView* browser_view);
+  virtual ~AppNonClientFrameViewAura();
+
+  // NonClientFrameView:
+  virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
+  virtual gfx::Rect GetWindowBoundsForClientBounds(
+      const gfx::Rect& client_bounds) const OVERRIDE;
+  virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
+  virtual void GetWindowMask(
+      const gfx::Size& size,
+      gfx::Path* window_mask) OVERRIDE;
+  virtual void ResetWindowControls() OVERRIDE;
+  virtual void UpdateWindowIcon() OVERRIDE;
+
+  // BrowserNonClientFrameView:
+  virtual gfx::Rect GetBoundsForTabStrip(
+      views::View* tabstrip) const OVERRIDE;
+  virtual int GetHorizontalTabStripVerticalOffset(
+      bool restored) const OVERRIDE;
+  virtual void UpdateThrobber(bool running) OVERRIDE;
+
+  // View:
+  virtual void OnMouseEntered(const views::MouseEvent& event) OVERRIDE;
+
+  // views::MouseWatcherListener.
+  virtual void MouseMovedOutOfHost() OVERRIDE;
+
+  // Close the app window.
+  void Close();
+
+  // Restore the app window (will result in switching the frame_view back).
+  void Restore();
+
+ private:
+  class ControlView;
+  class Host;
+
+  gfx::Rect GetControlBounds() const;
+
+  // The View containing the restore and close buttons.
+  ControlView* control_view_;
+  // The widget holding the control_view_.
+  views::Widget* control_widget_;
+  // Tracks the mouse and causes the controls to slide back up when it exits.
+  views::MouseWatcher mouse_watcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppNonClientFrameViewAura);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_FRAME_APP_NON_CLIENT_FRAME_VIEW_AURA_H_