Introduce WindowStateDelegate::ToggleFullscreen

chrome/browser/ui/views/frame/app_non_client_frame_view_ash.cc

 // 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.
 
 #include "chrome/browser/ui/views/frame/app_non_client_frame_view_ash.h"
 
 #include "ash/wm/caption_buttons/frame_caption_button_container_view.h"
+#include "ash/wm/window_state.h"
+#include "ash/wm/window_state_delegate.h"
 #include "base/i18n/rtl.h"
+#include "chrome/browser/ui/browser_commands.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "grit/ash_resources.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/rect.h"
@@ skipping 59 matching lines @@
     paint_bounds.set_x(view->GetMirroredXForRect(paint_bounds));
     canvas->TileImageInt(background_, paint_bounds.x(), paint_bounds.y(),
         paint_bounds.width(), paint_bounds.height());
   }
 
   gfx::ImageSkia background_;
 
   DISALLOW_COPY_AND_ASSIGN(ControlViewBackground);
 };
 
+class FrameWindowStateDelegate : public ash::wm::WindowStateDelegate {
+ public:
+  FrameWindowStateDelegate() {}
+  virtual ~FrameWindowStateDelegate(){}
+
+  // Invoked when the user uses Shift+F4/F4 to toggle the window
+  // fullscreen state.
+  virtual bool ToggleFullscreen(ash::wm::WindowState* window_state) OVERRIDE {
+    bool is_fullscreen = window_state->IsFullscreen();
+
+    // Windows which cannot be maximized should not be fullscreened.
+    if (!is_fullscreen && !window_state->CanMaximize())
+      return true;
+
+    Browser* browser = chrome::FindBrowserWithWindow(window_state->window());
+    CHECK(browser);
+    if (is_fullscreen) {
+      chrome::ToggleFullscreenMode(browser);
+      return true;
+    }
+    // AppNonClientFrameViewAsh shows only the window controls and no other
+    // window decorations which is pretty close to fullscreen. Put v1 apps
+    // into maximized mode instead of fullscreen to avoid showing the ugly
+    // fullscreen exit bubble.
+    if (browser->is_app() && browser->app_type() != Browser::APP_TYPE_CHILD)
+      window_state->ToggleMaximized();
+    else
+      chrome::ToggleFullscreenMode(browser);
+    return true;
+  }
+ private:
+  DISALLOW_COPY_AND_ASSIGN(FrameWindowStateDelegate);
+};
+
 }  // namespace
 
 // Observer to detect when the browser frame widget closes so we can clean
 // up our ControlView. Because we can be closed via a keyboard shortcut we
 // are not guaranteed to run AppNonClientFrameView's Close() or Restore().
 class AppNonClientFrameViewAsh::FrameObserver : public views::WidgetObserver {
  public:
   explicit FrameObserver(AppNonClientFrameViewAsh* owner) : owner_(owner) {}
   virtual ~FrameObserver() {}
 
@@ skipping 48 matching lines @@
   // Need to exclude the shadow from the active control area.
   gfx::Insets hit_test_insets(control_view_->GetInsets());
   if (base::i18n::IsRTL()) {
     hit_test_insets = gfx::Insets(hit_test_insets.top(),
                                   hit_test_insets.right(),
                                   hit_test_insets.bottom(),
                                   hit_test_insets.left());
   }
   window->SetHitTestBoundsOverrideOuter(hit_test_insets, hit_test_insets);
 
+
+  ash::wm::GetWindowState(window)->SetDelegate(new FrameWindowStateDelegate());
+
   gfx::Rect control_bounds = GetControlBounds();
   window->SetBounds(control_bounds);
   control_widget_->Show();
 }
 
 AppNonClientFrameViewAsh::~AppNonClientFrameViewAsh() {
   frame()->RemoveObserver(frame_observer_.get());
   // This frame view can be replaced (and deleted) if the window is restored
   // via a keyboard shortcut like Alt-[.  Ensure we close the control widget.
   CloseControlWidget();
@@ skipping 61 matching lines @@
       base::i18n::IsRTL() ? 0 : (width() - preferred.width()), 0,
       preferred.width(), preferred.height());
 }
 
 void AppNonClientFrameViewAsh::CloseControlWidget() {
   if (control_widget_) {
     control_widget_->Close();
     control_widget_ = NULL;
   }
 }