Support detaching/attaching panels via inter-strip drags.

chrome/browser/ui/panels/overflow_panel_strip.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/panels/overflow_panel_strip.h"
 
 #include "base/logging.h"
 #include "chrome/browser/ui/panels/docked_panel_strip.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
 #include "chrome/browser/ui/panels/panel_mouse_watcher.h"
@@ skipping 167 matching lines @@
   PanelStrip* docked_strip = panel_manager_->docked_strip();
   panel->MoveToStrip(docked_strip);
   docked_strip->RestorePanel(panel);
 }
 
 bool OverflowPanelStrip::CanShowPanelAsActive(const Panel* panel) const {
   // All overflow panels cannot be shown as active.
   return false;
 }
 
+void OverflowPanelStrip::SavePanelPlacement(Panel* panel) {

[jennb, 2012/03/03 02:19:33]

nit: (and probably overkill) but feels like this interface belongs in
DraggableStrip, which DockedStrip and DetachedStrip implement, but OverflowStrip
does not implement.

[jianli, 2012/03/07 19:14:31]

Will add DraggableStrip if we have more strips later.

+  NOTREACHED();
+}
+
+void OverflowPanelStrip::LoadSavedPanelPlacement() {
+  NOTREACHED();
+}
+
+void OverflowPanelStrip::DiscardSavedPanelPlacement() {
+  NOTREACHED();
+}
+
 bool OverflowPanelStrip::CanDragPanel(const Panel* panel) const {
   // All overflow panels are not draggable.
   return false;
 }
 
-void OverflowPanelStrip::StartDraggingPanel(Panel* panel) {
+void OverflowPanelStrip::StartDraggingPanelLocally(Panel* panel) {
   NOTREACHED();
 }
 
-void OverflowPanelStrip::DragPanel(Panel* panel, int delta_x, int delta_y) {
+void OverflowPanelStrip::DragPanelLocally(Panel* panel,
+                                          int delta_x,
+                                          int delta_y) {
   NOTREACHED();
 }
 
-void OverflowPanelStrip::EndDraggingPanel(Panel* panel, bool cancelled) {
+void OverflowPanelStrip::EndDraggingPanelLocally(Panel* panel, bool cancelled) {
   NOTREACHED();
 }
 
+void OverflowPanelStrip::AddDraggingPanel(Panel* panel,
+                                          const gfx::Point& position) {
+  NOTREACHED();
+}
+
 void OverflowPanelStrip::RefreshLayout() {
   if (panels_.empty())
     return;
   DoRefresh(0, panels_.size() - 1);
 }
 
 void OverflowPanelStrip::DoRefresh(size_t start_index, size_t end_index) {
   if (panels_.empty() || start_index == panels_.size())
     return;
 
@@ skipping 180 matching lines @@
   // expanded overflow panels when in full screen mode so no need
   // to detect when mouse hovers over the overflow strip.
   if (is_full_screen)
     panel_manager_->mouse_watcher()->RemoveObserver(this);
   else
     panel_manager_->mouse_watcher()->AddObserver(this);
 
   for (size_t i = 0; i < panels_.size(); ++i)
     panels_[i]->FullScreenModeChanged(is_full_screen);
 }