[DevTools] Send ack early when paused in mouse move to keep events coming.

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/observer_list.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "content/common/content_export.h"
 #include "content/common/cursors/webcursor.h"
 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
 #include "content/common/input/synthetic_gesture_params.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/WebInputEvent.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/base/ui_base_types.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"
 #include "ui/surface/transport_dib.h"
 
 struct ViewHostMsg_UpdateRect_Params;
 struct ViewMsg_Resize_Params;
 class ViewHostMsg_UpdateRect;
 
 namespace IPC {
 class SyncMessage;
 }
 
 namespace blink {
 struct WebDeviceEmulationParams;
 class WebGestureEvent;
-class WebInputEvent;
 class WebKeyboardEvent;
 class WebMouseEvent;
 class WebTouchEvent;
 }
 
 namespace cc { class OutputSurface; }
 
 namespace gfx {
 class Range;
 }
@@ skipping 115 matching lines @@
   void FinishHandlingImeEvent();
 
   // Returns whether we currently should handle an IME event.
   bool ShouldHandleImeEvent();
 
   virtual void InstrumentWillBeginFrame(int frame_id) {}
   virtual void InstrumentDidBeginFrame() {}
   virtual void InstrumentDidCancelFrame() {}
   virtual void InstrumentWillComposite() {}
 
+  // When paused in debugger, we send ack for mouse event early. This ensures
+  // that we continue receiving mouse moves and pass them to debugger. Returns
+  // whether we are paused in mouse move event and sent the ack.
+  bool SendAckForMouseMoveFromDebugger();
+
+  // When resumed from pause in debugger while handling mouse move,
+  // we should not send an extra ack (see SendAckForCurrentMouseMove).
+  void IgnoreAckForMouseMoveFromDebugger();
+
   bool UsingSynchronousRendererCompositor() const;
 
   // ScreenMetricsEmulator class manages screen emulation inside a render
   // widget. This includes resizing, placing view on the screen at desired
   // position, changing device scale factor, and scaling down the whole
   // widget if required to fit into the browser window.
   class ScreenMetricsEmulator;
 
   // Emulates screen and widget metrics. Supplied values override everything
   // coming from host.
@@ skipping 365 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_;
+  // Type of event we are currently handling.
+  blink::WebInputEvent::Type handling_event_type_;
+
+  // Whether we should not sent ack for current mouse move.
+  bool ignore_ack_for_mouse_move_from_debugger_;
 
   // 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_;
 
@@ skipping 107 matching lines @@
 
   ui::MenuSourceType context_menu_source_type_;
   gfx::Point touch_editing_context_menu_location_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_