Initial browser-side implementation for touch-action

content/renderer/render_widget.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_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <deque>
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "content/common/browser_rendering_stats.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
 #include "content/renderer/paint_aggregator.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebPopupType.h"
 #include "third_party/WebKit/public/web/WebTextDirection.h"
 #include "third_party/WebKit/public/web/WebTextInputInfo.h"
+#include "third_party/WebKit/public/web/WebTouchAction.h"
 #include "third_party/WebKit/public/web/WebWidget.h"
 #include "third_party/WebKit/public/web/WebWidgetClient.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/range/range.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/vector2d.h"
 #include "ui/gfx/vector2d_f.h"
@@ skipping 497 matching lines @@
   // just handled.
   virtual void DidHandleTouchEvent(const blink::WebTouchEvent& event) {}
 
   // Check whether the WebWidget has any touch event handlers registered
   // at the given point.
   virtual bool HasTouchEventHandlersAt(const gfx::Point& point) const;
 
   // Check whether the WebWidget has any touch event handlers registered.
   virtual void hasTouchEventHandlers(bool has_handlers);
 
+  // Tell the browser about the actions permitted for a new touch point.
+  virtual void setTouchAction(blink::WebTouchAction touch_action);
+
   // Creates a 3D context associated with this view.
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> CreateGraphicsContext3D(
       const blink::WebGraphicsContext3D::Attributes& attributes);
 
   bool OnSnapshotHelper(const gfx::Rect& src_subrect, SkBitmap* bitmap);
 
   void ScheduleCompositeImpl(bool force_redraw);
 
   // Routing ID that allows us to communicate to the parent browser process
   // RenderWidgetHost. When MSG_ROUTING_NONE, no messages may be sent.
@@ skipping 94 matching lines @@
 
   // Indicates whether we have been focused/unfocused by the browser.
   bool has_focus_;
 
   // Are we currently handling an input event?
   bool handling_input_event_;
 
   // Are we currently handling an ime event?
   bool handling_ime_event_;
 
+  // Are we currently handling a touchstart event?
+  bool handling_touchstart_event_;
+
   // True if we have requested this widget be closed.  No more messages will
   // be sent, except for a Close.
   bool closing_;
 
   // Whether this RenderWidget is currently swapped out, such that the view is
   // being rendered by another process.  If all RenderWidgets in a process are
   // swapped out, the process can exit.
   bool is_swapped_out_;
 
   // Indicates if an input method is active in the browser process.
@@ skipping 119 matching lines @@
   float popup_origin_scale_for_emulation_;
 
   scoped_ptr<ResizingModeSelector> resizing_mode_selector_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_