Draggable region support for frameless app window on CrOS.

chrome/browser/ui/views/extensions/shell_window_views.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/extensions/shell_window_views.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/common/extensions/draggable_region.h"
 #include "chrome/common/extensions/extension.h"
@@ skipping 318 matching lines @@
 #endif
   OnViewWasResized();
 
   window_->Show();
 }
 
 views::View* ShellWindowViews::GetInitiallyFocusedView() {
   return web_view_;
 }
 
+bool ShellWindowViews::ShouldDescendIntoChildForEventHandling(
+    aura::Window* child,
+    const gfx::Point& event_location,
+    ui::EventType event_type) {
+  DCHECK_EQ(child, web_view_->web_contents()->GetView()->GetNativeView());

[Ben Goodger (Google), 2012/08/21 02:17:40]

the body of this function needs to be #ifdef USE_AURA.

[jianli, 2012/08/21 17:22:00]

Done.

+  // Shell window should claim mouse click/drag events that fall within the
+  // draggable region.
+  return !draggable_region_.get() ||
+         !draggable_region_->contains(event_location.x(), event_location.y()) ||
+         (event_type != ui::ET_MOUSE_PRESSED &&

[Ben Goodger (Google), 2012/08/21 02:17:40]

I don't understand why the need to filter on event type. It seems like any event
to an area designated part of the frame should trigger handling by the top
window.

+          event_type != ui::ET_MOUSE_DRAGGED &&
+          event_type != ui::ET_MOUSE_RELEASED);
+}
+
 void ShellWindowViews::OnFocus() {
   web_view_->RequestFocus();
 }
 
 void ShellWindowViews::ViewHierarchyChanged(
     bool is_add, views::View *parent, views::View *child) {
   if (is_add && child == this) {
     web_view_ = new views::WebView(NULL);
     AddChildView(web_view_);
     web_view_->SetWebContents(web_contents());
@@ skipping 134 matching lines @@
   return window_;
 }
 
 const views::Widget* ShellWindowViews::GetWidget() const {
   return window_;
 }
 
 void ShellWindowViews::OnViewWasResized() {
   // TODO(jeremya): this doesn't seem like a terribly elegant way to keep the
   // window shape in sync.
-#if defined(OS_WIN) && !defined(USE_AURA)
+#if defined(OS_WIN) && !defined(USE_ASH)
   // Set the window shape of the RWHV.
   DCHECK(window_);
   DCHECK(web_view_);
   gfx::Size sz = web_view_->size();
   int height = sz.height(), width = sz.width();
   int radius = 1;
   gfx::Path path;
   if (window_->IsMaximized() || window_->IsFullscreen()) {
     // Don't round the corners when the window is maximized or fullscreen.
     path.addRect(0, 0, width, height);
@@ skipping 72 matching lines @@
 
   draggable_region_.reset(draggable_region);
   OnViewWasResized();
 }
 
 // static
 NativeShellWindow* NativeShellWindow::Create(
     ShellWindow* shell_window, const ShellWindow::CreateParams& params) {
   return new ShellWindowViews(shell_window, params);
 }