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 752 matching lines @@
 
 void BrowserView::Restore() {
   frame_->Restore();
 }
 
 void BrowserView::EnterFullscreen(
     const GURL& url, FullscreenExitBubbleType bubble_type) {
   if (IsFullscreen())
     return;  // Nothing to do.
 
-  ProcessFullscreen(true, url, bubble_type);
+  ProcessFullscreen(true, FOR_DESKTOP, url, bubble_type);
 }
 
 void BrowserView::ExitFullscreen() {
   if (!IsFullscreen())
     return;  // Nothing to do.
 
-  ProcessFullscreen(false, GURL(), FEB_TYPE_NONE);
+  ProcessFullscreen(false, FOR_DESKTOP, GURL(), FEB_TYPE_NONE);
 }
 
 void BrowserView::UpdateFullscreenExitBubbleContent(
     const GURL& url,
     FullscreenExitBubbleType bubble_type) {
   if (bubble_type == FEB_TYPE_NONE) {
     fullscreen_bubble_.reset();
   } else if (fullscreen_bubble_.get()) {
     fullscreen_bubble_->UpdateContent(url, bubble_type);
   } else {
     fullscreen_bubble_.reset(new FullscreenExitBubbleViews(
         GetWidget(), browser_.get(), url, bubble_type));
   }
 }
 
 bool BrowserView::IsFullscreen() const {
   return frame_->IsFullscreen();
 }
 
 bool BrowserView::IsFullscreenBubbleVisible() const {
   return fullscreen_bubble_ != NULL;
 }
 
 void BrowserView::FullScreenStateChanged() {
   if (IsFullscreen()) {
     if (fullscreen_request_.pending) {
       fullscreen_request_.pending = false;
-      ProcessFullscreen(true, fullscreen_request_.url,
+      ProcessFullscreen(true, FOR_DESKTOP,
+                        fullscreen_request_.url,
                         fullscreen_request_.bubble_type);
     } else {
-      ProcessFullscreen(true, GURL(),
+      ProcessFullscreen(true, FOR_DESKTOP, GURL(),
                         FEB_TYPE_BROWSER_FULLSCREEN_EXIT_INSTRUCTION);
     }
   } else {
-    ProcessFullscreen(false, GURL(), FEB_TYPE_NONE);
+    ProcessFullscreen(false, FOR_DESKTOP, GURL(), FEB_TYPE_NONE);
   }
 }
 
+#if defined(OS_WIN)
+void BrowserView::SetMetroSnapMode(bool enable) {
+  ProcessFullscreen(enable, FOR_METRO, GURL(), FEB_TYPE_NONE);
+}
+
+bool BrowserView::IsInMetroSnapMode() const {
+#if defined(USE_AURA)
+  return false;
+#else
+  return static_cast<views::NativeWidgetWin*>(
+      frame_->native_widget())->IsInMetroSnapMode();
+#endif
+}
+#endif  // defined(OS_WIN)
+
 void BrowserView::RestoreFocus() {
   WebContents* selected_web_contents = GetActiveWebContents();
   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 1250 matching lines @@
     DCHECK_EQ(0, new_height);
     // The heights are the same, but the old view is null. This only happens
     // when the height is zero. Zero out the bounds.
     new_view->SetBounds(0, 0, 0, 0);
   }
   *old_view = new_view;
   return changed;
 }
 
 void BrowserView::ProcessFullscreen(bool fullscreen,
+                                    FullscreenType type,
                                     const GURL& url,
                                     FullscreenExitBubbleType bubble_type) {
   // 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(OS_WIN) && !defined(USE_AURA)
   OmniboxViewWin* omnibox_view =
       static_cast<OmniboxViewWin*>(location_bar->GetLocationEntry());
 #endif
-  if (!fullscreen) {
+
+  if (!fullscreen && type != FOR_METRO) {
     // Hide the fullscreen bubble as soon as possible, since the mode toggle can
     // take enough time for the user to notice.
     fullscreen_bubble_.reset();
   } else {
     // 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(OS_WIN) && !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
   }
 #if defined(OS_WIN) && !defined(USE_AURA)
   static_cast<views::NativeWidgetWin*>(frame_->native_widget())->
       PushForceHidden();
 #endif
 
-  // Toggle fullscreen mode.
-  frame_->SetFullscreen(fullscreen);
+  if (type == FOR_METRO) {
+#if defined(OS_WIN) && !defined(USE_AURA)
+    // Enter metro snap mode.
+    static_cast<views::NativeWidgetWin*>(
+        frame_->native_widget())->SetMetroSnapFullscreen(fullscreen);
+#endif
+  } else {
+    // Toggle fullscreen mode.
+    frame_->SetFullscreen(fullscreen);
+  }
 
   browser_->WindowFullscreenStateChanged();
 
   if (fullscreen) {
     bool is_kiosk =
         CommandLine::ForCurrentProcess()->HasSwitch(switches::kKioskMode);
-    if (!is_kiosk) {
+    if (!is_kiosk && type != FOR_METRO) {
       fullscreen_bubble_.reset(new FullscreenExitBubbleViews(
           GetWidget(), browser_.get(), url, bubble_type));
     }
   } else {
 #if defined(OS_WIN) && !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
   }
@@ skipping 300 matching lines @@
           this,
           tab_contents->web_contents()->GetRenderViewHost(),
           password_generator,
           browser_.get(),
           tab_contents->password_manager());
 
   views::BubbleDelegateView::CreateBubble(bubble);
   bubble->SetAlignment(views::BubbleBorder::ALIGN_EDGE_TO_ANCHOR_EDGE);
   bubble->Show();
 }