Make panels not show on top when there is an app running in full screen mode.

chrome/browser/ui/panels/panel_manager.cc

 // Copyright (c) 2011 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/panels/panel_manager.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/fullscreen.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/panels/panel_mouse_watcher.h"
 #include "chrome/browser/ui/panels/panel_strip.h"
 #include "chrome/browser/ui/window_sizer.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 
 namespace {
 const int kOverflowStripThickness = 24;
 
 // Width of spacing around panel strip and the left/right edges of the screen.
 const int kPanelStripLeftMargin = kOverflowStripThickness + 6;
 const int kPanelStripRightMargin = 24;
 
 // Height of panel strip is based on the factor of the working area.
 const double kPanelStripHeightFactor = 0.5;
 
+static const int kFullScreenModeCheckInterval = 1000;

[jianli, 2011/12/02 00:04:45]

nit: either add comment to mention ms or add ms suffix to the variable name.

[prasadt, 2011/12/02 00:29:39]

Done.

+
 }  // namespace
 
 // static
 PanelManager* PanelManager::GetInstance() {
   static base::LazyInstance<PanelManager> instance = LAZY_INSTANCE_INITIALIZER;
   return instance.Pointer();
 }
 
 PanelManager::PanelManager()
     : panel_mouse_watcher_(PanelMouseWatcher::Create()),
-      auto_sizing_enabled_(true) {
+      auto_sizing_enabled_(true),
+      is_full_screen_mode_on_(false) {
   panel_strip_.reset(new PanelStrip(this));
   auto_hiding_desktop_bar_ = AutoHidingDesktopBar::Create(this);
   OnDisplayChanged();
 }
 
 PanelManager::~PanelManager() {
 }
 
 void PanelManager::OnDisplayChanged() {
   scoped_ptr<WindowSizer::MonitorInfoProvider> info_provider(
@@ skipping 34 matching lines @@
   int width = browser->override_bounds().width();
   int height = browser->override_bounds().height();
   Panel* panel = new Panel(browser, gfx::Size(width, height));
   panel_strip_->AddPanel(panel);
 
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_PANEL_ADDED,
       content::Source<Panel>(panel),
       content::NotificationService::NoDetails());
 
+  if (num_panels() == 1) {
+    full_screen_mode_timer_.Start(FROM_HERE,
+        base::TimeDelta::FromMilliseconds(kFullScreenModeCheckInterval),
+        this, &PanelManager::CheckFullScreenMode);
+  }
+
   return panel;
 }
 
 int PanelManager::StartingRightPosition() const {
   return panel_strip_->StartingRightPosition();
 }
 
+void PanelManager::CheckFullScreenMode() {
+  bool is_full_screen_mode_on_new = IsFullScreenMode();
+  if (is_full_screen_mode_on_ == is_full_screen_mode_on_new)
+    return;
+  is_full_screen_mode_on_ = is_full_screen_mode_on_new;
+  panel_strip_->OnFullScreenModeChanged(is_full_screen_mode_on_);
+}
+
 void PanelManager::Remove(Panel* panel) {
   if (panel_strip_->Remove(panel))
     return;
   // TODO(jianli): else try removing from overflow strip
 }
 
 void PanelManager::OnPanelRemoved(Panel* panel) {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_PANEL_REMOVED,
       content::Source<Panel>(panel),
       content::NotificationService::NoDetails());
+
+  if (num_panels() == 0)
+    full_screen_mode_timer_.Stop();
 }
 
 void PanelManager::StartDragging(Panel* panel) {
   panel_strip_->StartDragging(panel);
 }
 
 void PanelManager::Drag(int delta_x) {
   panel_strip_->Drag(delta_x);
 }
 
@@ skipping 82 matching lines @@
   // TODO(jianli): + overflow_strip_->num_panels();
 }
 
 bool PanelManager::is_dragging_panel() const {
   return panel_strip_->is_dragging_panel();
 }
 
 const PanelManager::Panels& PanelManager::panels() const {
   return panel_strip_->panels();
 }