Custom frame UI for platform apps on Windows.

content/browser/renderer_host/render_widget_host_view_win.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_WIN_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlcrack.h>
 #include <atlmisc.h>
 #include <peninputpanel.h>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time.h"
 #include "base/win/scoped_comptr.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/base/win/ime_input.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
+#include "ui/gfx/scoped_sk_region.h"
 #include "ui/gfx/surface/accelerated_surface_win.h"
 #include "webkit/glue/webcursor.h"
 
 class BackingStore;
 class RenderWidgetHost;
 
 namespace gfx {
 class Size;
 class Rect;
 }
@@ skipping 56 matching lines @@
   void ScheduleComposite();
 
   DECLARE_WND_CLASS_EX(kRenderWidgetHostHWNDClass, CS_DBLCLKS, 0);
 
   BEGIN_MSG_MAP(RenderWidgetHostHWND)
     MSG_WM_CREATE(OnCreate)
     MSG_WM_ACTIVATE(OnActivate)
     MSG_WM_DESTROY(OnDestroy)
     MSG_WM_PAINT(OnPaint)
     MSG_WM_NCPAINT(OnNCPaint)
+    MSG_WM_NCHITTEST(OnNCHitTest)
     MSG_WM_ERASEBKGND(OnEraseBkgnd)
     MSG_WM_SETCURSOR(OnSetCursor)
     MSG_WM_SETFOCUS(OnSetFocus)
     MSG_WM_KILLFOCUS(OnKillFocus)
     MSG_WM_CAPTURECHANGED(OnCaptureChanged)
     MSG_WM_CANCELMODE(OnCancelMode)
     MSG_WM_INPUTLANGCHANGE(OnInputLangChange)
     MSG_WM_THEMECHANGED(OnThemeChanged)
     MSG_WM_NOTIFY(OnNotify)
     MESSAGE_HANDLER(WM_IME_SETCONTEXT, OnImeSetContext)
@@ skipping 88 matching lines @@
       int gpu_host_id) OVERRIDE;
   virtual void AcceleratedSurfacePostSubBuffer(
       const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
       int gpu_host_id) OVERRIDE;
   virtual void AcceleratedSurfaceSuspend() OVERRIDE;
   virtual void OnAccessibilityNotifications(
       const std::vector<ViewHostMsg_AccessibilityNotification_Params>& params
       ) OVERRIDE;
   virtual bool LockMouse() OVERRIDE;
   virtual void UnlockMouse() OVERRIDE;
+  virtual void SetTransparentRegion(SkRegion* region) OVERRIDE;
 
   // Implementation of content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Implementation of BrowserAccessibilityDelegate:
   virtual void SetAccessibilityFocus(int acc_obj_id) OVERRIDE;
   virtual void AccessibilityDoDefaultAction(int acc_obj_id) OVERRIDE;
   virtual void AccessibilityScrollToMakeVisible(
@@ skipping 10 matching lines @@
   //
   // The view will associate itself with the given widget.
   explicit RenderWidgetHostViewWin(RenderWidgetHost* widget);
 
   // Windows Message Handlers
   LRESULT OnCreate(CREATESTRUCT* create_struct);
   void OnActivate(UINT, BOOL, HWND);
   void OnDestroy();
   void OnPaint(HDC unused_dc);
   void OnNCPaint(HRGN update_region);
+  LRESULT OnNCHitTest(const CPoint& pt);
   LRESULT OnEraseBkgnd(HDC dc);
   LRESULT OnSetCursor(HWND window, UINT hittest_code, UINT mouse_message_id);
   void OnSetFocus(HWND window);
   void OnKillFocus(HWND window);
   void OnCaptureChanged(HWND window);
   void OnCancelMode();
   void OnInputLangChange(DWORD character_set, HKL input_language_id);
   void OnThemeChanged();
   LRESULT OnNotify(int w_param, NMHDR* header);
   LRESULT OnImeSetContext(
@@ skipping 285 matching lines @@
 
   // Set to true if we are in the context of a WM_POINTERDOWN message
   bool pointer_down_context_;
 
   // Set to true if the focus is currently on an editable field on the page.
   bool focus_on_editable_field_;
 
   // Set to true if we received a focus change after a WM_POINTERDOWN message.
   bool received_focus_change_after_pointer_down_;
 
+  // Region in which the view will be transparent to clicks.
+  gfx::ScopedSkRegion transparent_region_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewWin);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_WIN_H_