Drag-and-drop: Move startDrag out of WebView/RenderView.

content/renderer/render_widget.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/renderer/render_widget.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/feature_list.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_info.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_synthetic_delay.h"
 #include "build/build_config.h"
 #include "cc/output/compositor_frame_sink.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "content/common/content_switches_internal.h"
+#include "content/common/drag_event_source_info.h"
+#include "content/common/drag_messages.h"
 #include "content/common/input/synthetic_gesture_packet.h"
 #include "content/common/input_messages.h"
 #include "content/common/render_message_filter.mojom.h"
 #include "content/common/swapped_out_messages.h"
 #include "content/common/text_input_state.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/content_features.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/context_menu_params.h"
 #include "content/renderer/cursor_utils.h"
 #include "content/renderer/devtools/render_widget_screen_metrics_emulator.h"
+#include "content/renderer/drop_data_builder.h"
 #include "content/renderer/external_popup_menu.h"
 #include "content/renderer/gpu/frame_swap_message_queue.h"
 #include "content/renderer/gpu/queue_message_swap_promise.h"
 #include "content/renderer/gpu/render_widget_compositor.h"
 #include "content/renderer/ime_event_guard.h"
 #include "content/renderer/input/input_handler_manager.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/render_frame_impl.h"
 #include "content/renderer/render_frame_proxy.h"
 #include "content/renderer/render_process.h"
@@ skipping 46 matching lines @@
 #include "content/renderer/mus/render_widget_mus_connection.h"
 #endif
 
 #if defined(OS_MACOSX)
 #include "content/renderer/text_input_client_observer.h"
 #endif
 
 using blink::WebCompositionUnderline;
 using blink::WebCursorInfo;
 using blink::WebDeviceEmulationParams;
+using blink::WebDragOperationsMask;
+using blink::WebDragData;
 using blink::WebGestureEvent;
+using blink::WebImage;
 using blink::WebInputEvent;
 using blink::WebInputEventResult;
 using blink::WebKeyboardEvent;
+using blink::WebLocalFrame;
 using blink::WebMouseEvent;
 using blink::WebMouseWheelEvent;
 using blink::WebNavigationPolicy;
 using blink::WebNode;
 using blink::WebPagePopup;
 using blink::WebPoint;
 using blink::WebPopupType;
 using blink::WebRange;
 using blink::WebRect;
 using blink::WebSize;
@@ skipping 836 matching lines @@
 
     text_input_info_ = new_info;
     text_input_type_ = new_type;
     text_input_mode_ = new_mode;
     can_compose_inline_ = new_can_compose_inline;
     text_input_flags_ = new_info.flags;
   }
 }
 
 bool RenderWidget::WillHandleGestureEvent(const blink::WebGestureEvent& event) {
-  if (owner_delegate_)
-    return owner_delegate_->RenderWidgetWillHandleGestureEvent(event);
+  possible_drag_event_info_.event_source =
+      ui::DragDropTypes::DRAG_EVENT_SOURCE_TOUCH;
+  possible_drag_event_info_.event_location =
+      gfx::Point(event.globalX, event.globalY);
 
   return false;
 }
 
 bool RenderWidget::WillHandleMouseEvent(const blink::WebMouseEvent& event) {
   for (auto& observer : render_frames_)
     observer.RenderWidgetWillHandleMouseEvent();
 
+  possible_drag_event_info_.event_source =
+      ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
+  possible_drag_event_info_.event_location =
+      gfx::Point(event.globalX, event.globalY);
+
   if (owner_delegate_)
     return owner_delegate_->RenderWidgetWillHandleMouseEvent(event);
 
   return false;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // RenderWidgetScreenMetricsDelegate
 
 void RenderWidget::Redraw() {
@@ skipping 1075 matching lines @@
 
 void RenderWidget::requestPointerUnlock() {
   mouse_lock_dispatcher_->UnlockMouse(webwidget_mouse_lock_target_.get());
 }
 
 bool RenderWidget::isPointerLocked() {
   return mouse_lock_dispatcher_->IsMouseLockedTo(
       webwidget_mouse_lock_target_.get());
 }
 
+void RenderWidget::startDragging(blink::WebReferrerPolicy policy,
+                                 const WebDragData& data,
+                                 WebDragOperationsMask mask,
+                                 const WebImage& image,
+                                 const WebPoint& webImageOffset) {
+  blink::WebRect offset_in_window(webImageOffset.x, webImageOffset.y, 0, 0);
+  convertViewportToWindow(&offset_in_window);
+  DropData drop_data(DropDataBuilder::Build(data));
+  drop_data.referrer_policy = policy;
+  gfx::Vector2d imageOffset(offset_in_window.x, offset_in_window.y);
+  Send(new DragHostMsg_StartDragging(routing_id_, drop_data, mask,
+                                     image.getSkBitmap(), imageOffset,
+                                     possible_drag_event_info_));
+}
+
 blink::WebWidget* RenderWidget::GetWebWidget() const {
   return webwidget_internal_;
 }
 
 }  // namespace content