Make packaged apps use AppNonClientFrameViewAsh when maximized

chrome/browser/ui/views/frame/browser_frame_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/browser_frame_ash.h"
 
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_util.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
-#include "ui/aura/client/aura_constants.h"
+#include "chrome/browser/ui/views/frame/non_client_frame_view_switcher_ash.h"
 #include "ui/aura/window.h"
-#include "ui/aura/window_observer.h"
 #include "ui/gfx/font.h"
 #include "ui/views/view.h"
 
-using aura::Window;
-
-////////////////////////////////////////////////////////////////////////////////
-// BrowserFrameAsh::WindowPropertyWatcher
-
-class BrowserFrameAsh::WindowPropertyWatcher : public aura::WindowObserver {
- public:
-  explicit WindowPropertyWatcher(BrowserFrameAsh* browser_frame_ash,
-                                 BrowserFrame* browser_frame)
-      : browser_frame_ash_(browser_frame_ash),
-        browser_frame_(browser_frame) {}
-
-  virtual void OnWindowPropertyChanged(aura::Window* window,
-                                       const void* key,
-                                       intptr_t old) OVERRIDE {
-    if (key != aura::client::kShowStateKey)
-      return;
-
-    ui::WindowShowState old_state = static_cast<ui::WindowShowState>(old);
-    ui::WindowShowState new_state =
-        window->GetProperty(aura::client::kShowStateKey);
-
-    // Allow the frame to be replaced when entering or exiting the maximized
-    // state.
-    if (browser_frame_->non_client_view() &&
-        browser_frame_ash_->browser_view()->browser()->is_app() &&
-        (old_state == ui::SHOW_STATE_MAXIMIZED ||
-         new_state == ui::SHOW_STATE_MAXIMIZED)) {
-      // Defer frame layout when replacing the frame. Layout will occur when the
-      // window's bounds are updated. The window maximize/restore animations
-      // clone the window's layers and rely on the subsequent layout to set
-      // the layer sizes.
-      // If the window is minimized, the frame view needs to be updated via
-      // an OnBoundsChanged event so that the frame will change its size
-      // properly.
-      browser_frame_->non_client_view()->UpdateFrame(
-          old_state == ui::SHOW_STATE_MINIMIZED);
-    }
-  }
-
-  virtual void OnWindowBoundsChanged(aura::Window* window,
-                                     const gfx::Rect& old_bounds,
-                                     const gfx::Rect& new_bounds) OVERRIDE {
-    // Don't do anything if we don't have our non-client view yet.
-    if (!browser_frame_->non_client_view())
-      return;
-
-    // If the window just moved to the top of the screen, or just moved away
-    // from it, invoke Layout() so the header size can change.
-    if ((old_bounds.y() == 0 && new_bounds.y() != 0) ||
-        (old_bounds.y() != 0 && new_bounds.y() == 0))
-      browser_frame_->non_client_view()->Layout();
-  }
-
- private:
-  BrowserFrameAsh* browser_frame_ash_;
-  BrowserFrame* browser_frame_;
-
-  DISALLOW_COPY_AND_ASSIGN(WindowPropertyWatcher);
-};
-
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserFrameAsh, public:
 
 // static
 const char BrowserFrameAsh::kWindowName[] = "BrowserFrameAsh";
 
 BrowserFrameAsh::BrowserFrameAsh(BrowserFrame* browser_frame,
                                  BrowserView* browser_view)
     : views::NativeWidgetAura(browser_frame),
-      browser_view_(browser_view),
-      window_property_watcher_(new WindowPropertyWatcher(this, browser_frame)) {
+      browser_view_(browser_view) {
   GetNativeWindow()->SetName(kWindowName);
-  GetNativeWindow()->AddObserver(window_property_watcher_.get());
+  if (browser_view->browser()->is_app()) {
+    // Apps switch to a special non client frame view when maximized.
+    browser_frame_switcher_.reset(new NonClientFrameViewSwitcherAsh(
+        browser_frame, GetNativeWindow()));
+  }
+
   if (browser_view->browser()->is_type_tabbed())
     ash::wm::SetAnimateToFullscreen(GetNativeWindow(), false);
 
   // Turn on auto window management if we don't need an explicit bounds.
   // This way the requested bounds are honored.
   if (!browser_view->browser()->bounds_overridden() &&
       !browser_view->browser()->is_session_restore())
     SetWindowAutoManaged();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
-// BrowserFrameAsh, views::NativeWidgetAura overrides:
-
-void BrowserFrameAsh::OnWindowDestroying() {
-  // Window is destroyed before our destructor is called, so clean up our
-  // observer here.
-  GetNativeWindow()->RemoveObserver(window_property_watcher_.get());
-  views::NativeWidgetAura::OnWindowDestroying();
-}
+// BrowserFrameAsh, views::NativeWidgetAura override:
 
 void BrowserFrameAsh::OnWindowTargetVisibilityChanged(bool visible) {
   if (visible) {
     // Once the window has been shown we know the requested bounds
     // (if provided) have been honored and we can switch on window management.
     SetWindowAutoManaged();
   }
   views::NativeWidgetAura::OnWindowTargetVisibilityChanged(visible);
 }
 
@@ skipping 25 matching lines @@
 BrowserFrameAsh::~BrowserFrameAsh() {
 }
 
 void BrowserFrameAsh::SetWindowAutoManaged() {
   if (browser_view_->browser()->type() != Browser::TYPE_POPUP ||
       browser_view_->browser()->is_app()) {
     ash::wm::GetWindowState(GetNativeWindow())->
         set_window_position_managed(true);
   }
 }