Drag-and-drop: DragEnter, DragOver, DragLeave, DragDrop

components/test_runner/event_sender.cc

 // Copyright 2014 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 "components/test_runner/event_sender.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 13 matching lines @@
 #include "components/test_runner/web_view_test_proxy.h"
 #include "components/test_runner/web_widget_test_proxy.h"
 #include "gin/handle.h"
 #include "gin/object_template_builder.h"
 #include "gin/wrappable.h"
 #include "third_party/WebKit/public/platform/WebInputEvent.h"
 #include "third_party/WebKit/public/platform/WebPointerProperties.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "third_party/WebKit/public/web/WebContextMenuData.h"
+#include "third_party/WebKit/public/web/WebFrameWidget.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebPagePopup.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/events/blink/blink_event_util.h"
 #include "ui/events/keycodes/dom/keycode_converter.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "v8/include/v8.h"
 
 using blink::WebContextMenuData;
@@ skipping 1312 matching lines @@
   std::unique_ptr<WebInputEvent> widget_event =
       TransformScreenToWidgetCoordinates(raw_event);
   const WebMouseEvent* event =
       widget_event.get() ? static_cast<WebMouseEvent*>(widget_event.get())
                          : &raw_event;
 
   WebPoint client_point(event->x, event->y);
   WebPoint screen_point(event->globalX, event->globalY);
   current_drag_data_ = drag_data;
   current_drag_effects_allowed_ = mask;
-  current_drag_effect_ = view()->dragTargetDragEnter(
+  current_drag_effect_ = mainFrameWidget()->dragTargetDragEnter(
       drag_data, client_point, screen_point, current_drag_effects_allowed_,
       modifiersWithButtons(
           current_pointer_state_[kRawMousePointerId].modifiers_,
           current_pointer_state_[kRawMousePointerId].current_buttons_));
 
   // Finish processing events.
   ReplaySavedEvents();
 }
 
 void EventSender::MouseDown(int button_number, int modifiers) {
@@ skipping 653 matching lines @@
   current_drag_data_.setFilesystemId(
       delegate()->RegisterIsolatedFileSystem(absolute_filenames));
   current_drag_effects_allowed_ = blink::WebDragOperationCopy;
 
   const WebPoint& last_pos =
       current_pointer_state_[kRawMousePointerId].last_pos_;
   float scale = delegate()->GetWindowToViewportScale();
   WebPoint scaled_last_pos(last_pos.x * scale, last_pos.y * scale);
 
   // Provide a drag source.
-  view()->dragTargetDragEnter(
+  mainFrameWidget()->dragTargetDragEnter(
       current_drag_data_, scaled_last_pos, scaled_last_pos,
       current_drag_effects_allowed_, 0);
   // |is_drag_mode_| saves events and then replays them later. We don't
   // need/want that.
   is_drag_mode_ = false;
 
   // Make the rest of eventSender think a drag is in progress.
   current_pointer_state_[kRawMousePointerId].pressed_button_ =
       WebMouseEvent::Button::Left;
   current_pointer_state_[kRawMousePointerId].current_buttons_ |=
@@ skipping 633 matching lines @@
   const WebMouseEvent* event =
       widget_event.get() ? static_cast<WebMouseEvent*>(widget_event.get())
                          : &raw_event;
 
   WebPoint client_point(event->x, event->y);
   WebPoint screen_point(event->globalX, event->globalY);
   current_drag_effect_ = drag_effect;
   if (current_drag_effect_) {
     // Specifically pass any keyboard modifiers to the drop method. This allows
     // tests to control the drop type (i.e. copy or move).
-    view()->dragTargetDrop(current_drag_data_, client_point, screen_point,
-                           event->modifiers);
+    mainFrameWidget()->dragTargetDrop(current_drag_data_, client_point,
+                                      screen_point, event->modifiers);
   } else {
-    view()->dragTargetDragLeave();
+    mainFrameWidget()->dragTargetDragLeave();
   }
   current_drag_data_.reset();
   view()->dragSourceEndedAt(client_point, screen_point, current_drag_effect_);
   view()->dragSourceSystemDragEnded();
 }
 
 void EventSender::DoDragAfterMouseUp(const WebMouseEvent& raw_event) {
   std::unique_ptr<WebInputEvent> widget_event =
       TransformScreenToWidgetCoordinates(raw_event);
   const WebMouseEvent* event =
       widget_event.get() ? static_cast<WebMouseEvent*>(widget_event.get())
                          : &raw_event;
 
   last_click_time_sec_ = event->timeStampSeconds;
   last_click_pos_ = current_pointer_state_[kRawMousePointerId].last_pos_;
 
   // If we're in a drag operation, complete it.
   if (current_drag_data_.isNull())
     return;
 
   WebPoint client_point(event->x, event->y);
   WebPoint screen_point(event->globalX, event->globalY);
-  blink::WebDragOperation drag_effect = view()->dragTargetDragOver(
+  blink::WebDragOperation drag_effect = mainFrameWidget()->dragTargetDragOver(
       client_point, screen_point, current_drag_effects_allowed_,
       event->modifiers);
 
   // Bail if dragover caused cancellation.
   if (current_drag_data_.isNull())
     return;
 
   FinishDragAndDrop(raw_event, drag_effect);
 }
 
 void EventSender::DoDragAfterMouseMove(const WebMouseEvent& raw_event) {
   if (current_pointer_state_[kRawMousePointerId].pressed_button_ ==
           WebMouseEvent::Button::NoButton ||
       current_drag_data_.isNull()) {
     return;
   }
 
   std::unique_ptr<WebInputEvent> widget_event =
       TransformScreenToWidgetCoordinates(raw_event);
   const WebMouseEvent* event =
       widget_event.get() ? static_cast<WebMouseEvent*>(widget_event.get())
                          : &raw_event;
 
   WebPoint client_point(event->x, event->y);
   WebPoint screen_point(event->globalX, event->globalY);
-  current_drag_effect_ = view()->dragTargetDragOver(
+  current_drag_effect_ = mainFrameWidget()->dragTargetDragOver(
       client_point, screen_point, current_drag_effects_allowed_,
       event->modifiers);
 }
 
 void EventSender::ReplaySavedEvents() {
   replaying_saved_events_ = true;
   while (!mouse_event_queue_.empty()) {
     SavedEvent e = mouse_event_queue_.front();
     mouse_event_queue_.pop_front();
 
@@ skipping 132 matching lines @@
 }
 
 blink::WebView* EventSender::view() {
   return web_widget_test_proxy_base_->web_view_test_proxy_base()->web_view();
 }
 
 blink::WebWidget* EventSender::widget() {
   return web_widget_test_proxy_base_->web_widget();
 }
 
+blink::WebFrameWidget* EventSender::mainFrameWidget() {
+  return view()->mainFrame()->toWebLocalFrame()->frameWidget();
+}
+
 std::unique_ptr<WebInputEvent> EventSender::TransformScreenToWidgetCoordinates(
     const WebInputEvent& event) {
   return delegate()->TransformScreenToWidgetCoordinates(
       web_widget_test_proxy_base_, event);
 }
 
 }  // namespace test_runner