Revert 236254 "Replace old with new synthetic gesture framework."

trunk/src/content/browser/renderer_host/render_widget_host_view_android.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 "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 15 matching lines @@
 #include "cc/trees/layer_tree_host.h"
 #include "content/browser/accessibility/browser_accessibility_manager_android.h"
 #include "content/browser/android/content_view_core_impl.h"
 #include "content/browser/android/in_process/synchronous_compositor_impl.h"
 #include "content/browser/android/overscroll_glow.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/browser/renderer_host/compositor_impl_android.h"
 #include "content/browser/renderer_host/dip_util.h"
+#include "content/browser/renderer_host/generic_touch_gesture_android.h"
 #include "content/browser/renderer_host/image_transport_factory_android.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target_android.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/input_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/config/gpu_driver_bug_workaround_type.h"
 #include "skia/ext/image_operations.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "ui/gfx/android/device_display_info.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/size_conversions.h"
 
 namespace content {
 
 namespace {
 
 const int kUndefinedOutputSurfaceId = -1;
+const int kMinimumPointerDistance = 50;
 
 void InsertSyncPointAndAckForCompositor(
     int renderer_host_id,
     uint32 output_surface_id,
     int route_id,
     const gpu::Mailbox& return_mailbox,
     const gfx::Size return_size) {
   cc::CompositorFrameAck ack;
   ack.gl_frame_data.reset(new cc::GLFrameData());
   if (!return_mailbox.IsZero()) {
@@ skipping 545 matching lines @@
 
   content_view_core_->ShowDisambiguationPopup(target_rect, zoomed_bitmap);
 }
 
 scoped_ptr<SyntheticGestureTarget>
 RenderWidgetHostViewAndroid::CreateSyntheticGestureTarget() {
   return scoped_ptr<SyntheticGestureTarget>(new SyntheticGestureTargetAndroid(
       host_, content_view_core_->CreateTouchEventSynthesizer()));
 }
 
+SyntheticGesture* RenderWidgetHostViewAndroid::CreateSmoothScrollGesture(
+    bool scroll_down, int pixels_to_scroll, int mouse_event_x,
+    int mouse_event_y) {
+  return new GenericTouchGestureAndroid(
+      GetRenderWidgetHost(),
+      content_view_core_->CreateOnePointTouchGesture(
+          mouse_event_x, mouse_event_y,
+          0, scroll_down ? -pixels_to_scroll : pixels_to_scroll));
+}
+
+SyntheticGesture* RenderWidgetHostViewAndroid::CreatePinchGesture(
+    bool zoom_in, int pixels_to_move, int anchor_x,
+    int anchor_y) {
+  int distance_between_pointers = zoom_in ?
+      kMinimumPointerDistance : (kMinimumPointerDistance + pixels_to_move);
+  return new GenericTouchGestureAndroid(
+      GetRenderWidgetHost(),
+      content_view_core_->CreateTwoPointTouchGesture(
+          anchor_x, anchor_y - distance_between_pointers / 2,
+          0, (zoom_in ? -pixels_to_move : pixels_to_move) / 2,
+          anchor_x, anchor_y + distance_between_pointers / 2,
+          0, (zoom_in ? pixels_to_move : -pixels_to_move) / 2));
+}
+
 void RenderWidgetHostViewAndroid::OnAcceleratedCompositingStateChange() {
 }
 
 void RenderWidgetHostViewAndroid::SendDelegatedFrameAck(
     uint32 output_surface_id) {
   cc::CompositorFrameAck ack;
   if (resource_collection_.get())
     resource_collection_->TakeUnusedResourcesForChildCompositor(&ack.resources);
   RenderWidgetHostImpl::SendSwapCompositorFrameAck(host_->GetRoutingID(),
                                                    output_surface_id,
@@ skipping 731 matching lines @@
 // RenderWidgetHostView, public:
 
 // static
 RenderWidgetHostView*
 RenderWidgetHostView::CreateViewForWidget(RenderWidgetHost* widget) {
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
   return new RenderWidgetHostViewAndroid(rwhi, NULL);
 }
 
 } // namespace content