Preliminary metro snap plumbing.

chrome/browser/ui/views/frame/browser_view.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_view.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 797 matching lines @@
                         fullscreen_request_.bubble_type);
     } else {
       ProcessFullscreen(true, GURL(),
                         FEB_TYPE_BROWSER_FULLSCREEN_EXIT_INSTRUCTION);
     }
   } else {
     ProcessFullscreen(false, GURL(), FEB_TYPE_NONE);
   }
 }
 
+#if defined(OS_WIN)
+void BrowserView::ToggleMetroSnapMode(bool enable) {
+  // Reduce jankiness during the following position changes by:
+  //   * Hiding the window until it's in the final position
+  //   * Ignoring all intervening Layout() calls, which resize the webpage and
+  //     thus are slow and look ugly
+  ignore_layout_ = true;
+  LocationBarView* location_bar = GetLocationBarView();
+#if !defined(USE_AURA)
+  OmniboxViewWin* omnibox_view =
+      static_cast<OmniboxViewWin*>(location_bar->GetLocationEntry());
+  static_cast<views::NativeWidgetWin*>(frame_->native_widget())->
+    PushForceHidden();
+#endif
+
+  if (enable) {
+    // Move focus out of the location bar if necessary.
+    views::FocusManager* focus_manager = GetFocusManager();
+    DCHECK(focus_manager);
+    // Look for focus in the location bar itself or any child view.
+    if (location_bar->Contains(focus_manager->GetFocusedView()))
+      focus_manager->ClearFocus();
+
+#if !defined(USE_AURA)
+    // If we don't hide the edit and force it to not show until we come out of
+    // fullscreen, then if the user was on the New Tab Page, the edit contents
+    // will appear atop the web contents once we go into fullscreen mode.  This
+    // has something to do with how we move the main window while it's hidden;
+    // if we don't hide the main window below, we don't get this problem.
+    omnibox_view->set_force_hidden(true);
+    ShowWindow(omnibox_view->m_hWnd, SW_HIDE);
+#endif
+  } else {
+#if !defined(USE_AURA)
+    // Show the edit again since we're no longer in fullscreen mode.
+    omnibox_view->set_force_hidden(false);
+    ShowWindow(omnibox_view->m_hWnd, SW_SHOW);
+#endif
+  }
+
+  // Enter metro snap mode.
+  static_cast<views::NativeWidgetWin*>(
+      frame_->native_widget())->SetMetroSnapFullscreen(enable);
+
+  // Update various state as if we were in fullscreen mode.
+  // TODO(robertshield): This may need to be modified for metro snap
+  // mode - especially the command state changes.
+  browser_->WindowFullscreenStateChanged();
+
+  // Undo our anti-jankiness hacks and force the window to re-layout now that
+  // it's in its final position.
+  ignore_layout_ = false;
+  Layout();
+
+#if !defined(USE_AURA)
+  static_cast<views::NativeWidgetWin*>(
+    frame_->native_widget())->PopForceHidden();
+#endif
+}
+#endif  // defined(OS_WIN)
+
 void BrowserView::RestoreFocus() {
   WebContents* selected_web_contents = GetSelectedWebContents();
   if (selected_web_contents)
     selected_web_contents->GetView()->RestoreFocus();
 }
 
 void BrowserView::SetWindowSwitcherButton(views::Button* button) {
   if (window_switcher_button_)
     RemoveChildView(window_switcher_button_);
   window_switcher_button_ = button;
@@ skipping 1271 matching lines @@
     ShowWindow(omnibox_view->m_hWnd, SW_HIDE);
 #endif
   }
 #if defined(OS_WIN) && !defined(USE_AURA)
   static_cast<views::NativeWidgetWin*>(frame_->native_widget())->
       PushForceHidden();
 #endif
 
   // Toggle fullscreen mode.
   frame_->SetFullscreen(fullscreen);
-
   browser_->WindowFullscreenStateChanged();
 
   if (fullscreen) {
     bool is_kiosk =
         CommandLine::ForCurrentProcess()->HasSwitch(switches::kKioskMode);
     if (!is_kiosk) {
       fullscreen_bubble_.reset(new FullscreenExitBubbleViews(
           GetWidget(), browser_.get(), url, bubble_type));
     }
   } else {
@@ skipping 306 matching lines @@
                                        this,
                                        web_contents->GetRenderViewHost(),
                                        password_generator,
                                        browser_.get(),
                                        wrapper->password_manager());
 
   views::BubbleDelegateView::CreateBubble(bubble);
   bubble->SetAlignment(views::BubbleBorder::ALIGN_EDGE_TO_ANCHOR_EDGE);
   bubble->Show();
 }