Convert drag event position to root frame.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 3764 matching lines @@
 HitTestResult WebViewImpl::coreHitTestResultAt(
     const WebPoint& pointInViewport) {
   DocumentLifecycle::AllowThrottlingScope throttlingScope(
       mainFrameImpl()->frame()->document()->lifecycle());
   FrameView* view = mainFrameImpl()->frameView();
   IntPoint pointInRootFrame =
       view->contentsToFrame(view->viewportToContents(pointInViewport));
   return hitTestResultForRootFramePos(pointInRootFrame);
 }
 
-void WebViewImpl::dragSourceEndedAt(const WebPoint& clientPoint,
+void WebViewImpl::dragSourceEndedAt(const WebPoint& pointInViewport,
                                     const WebPoint& screenPoint,
                                     WebDragOperation operation) {
+  WebPoint pointInRootFrame(
+      page()->frameHost().visualViewport().viewportToRootFrame(
+          pointInViewport));
   PlatformMouseEvent pme(
-      clientPoint, screenPoint, WebPointerProperties::Button::Left,
+      pointInRootFrame, screenPoint, WebPointerProperties::Button::Left,
       PlatformEvent::MouseMoved, 0, PlatformEvent::NoModifiers,
       PlatformMouseEvent::RealOrIndistinguishable,
       WTF::monotonicallyIncreasingTime());
   m_page->deprecatedLocalMainFrame()->eventHandler().dragSourceEndedAt(
       pme, static_cast<DragOperation>(operation));
 }
 
 void WebViewImpl::dragSourceSystemDragEnded() {
   // It's possible for us to get this callback while not doing a drag if
   // it's from a previous page that got unloaded.
   if (m_doingDragAndDrop) {
     m_page->dragController().dragEnded();
     m_doingDragAndDrop = false;
   }
 }
 
 WebDragOperation WebViewImpl::dragTargetDragEnter(
     const WebDragData& webDragData,
-    const WebPoint& clientPoint,
+    const WebPoint& pointInViewport,
     const WebPoint& screenPoint,
     WebDragOperationsMask operationsAllowed,
     int modifiers) {
   DCHECK(!m_currentDragData);
 
   m_currentDragData = DataObject::create(webDragData);
   m_operationsAllowed = operationsAllowed;
 
-  return dragTargetDragEnterOrOver(clientPoint, screenPoint, DragEnter,
+  return dragTargetDragEnterOrOver(pointInViewport, screenPoint, DragEnter,
                                    modifiers);
 }
 
 WebDragOperation WebViewImpl::dragTargetDragOver(
-    const WebPoint& clientPoint,
+    const WebPoint& pointInViewport,
     const WebPoint& screenPoint,
     WebDragOperationsMask operationsAllowed,
     int modifiers) {
   m_operationsAllowed = operationsAllowed;
 
-  return dragTargetDragEnterOrOver(clientPoint, screenPoint, DragOver,
+  return dragTargetDragEnterOrOver(pointInViewport, screenPoint, DragOver,
                                    modifiers);
 }
 
 void WebViewImpl::dragTargetDragLeave() {
   DCHECK(m_currentDragData);
 
   DragData dragData(m_currentDragData.get(), IntPoint(), IntPoint(),
                     static_cast<DragOperation>(m_operationsAllowed));
 
   m_page->dragController().dragExited(&dragData);
 
   // FIXME: why is the drag scroll timer not stopped here?
 
   m_dragOperation = WebDragOperationNone;
   m_currentDragData = nullptr;
 }
 
 void WebViewImpl::dragTargetDrop(const WebDragData& webDragData,
-                                 const WebPoint& clientPoint,
+                                 const WebPoint& pointInViewport,
                                  const WebPoint& screenPoint,
                                  int modifiers) {
+  WebPoint pointInRootFrame(
+      page()->frameHost().visualViewport().viewportToRootFrame(
+          pointInViewport));
+
   DCHECK(m_currentDragData);
   m_currentDragData = DataObject::create(webDragData);
 
   WebAutofillClient* autofillClient =
       mainFrameImpl() ? mainFrameImpl()->autofillClient() : 0;
   UserGestureNotifier notifier(autofillClient, &m_userGestureObserved);
 
   // If this webview transitions from the "drop accepting" state to the "not
   // accepting" state, then our IPC message reply indicating that may be in-
   // flight, or else delayed by javascript processing in this webview.  If a
   // drop happens before our IPC reply has reached the browser process, then
   // the browser forwards the drop to this webview.  So only allow a drop to
   // proceed if our webview m_dragOperation state is not DragOperationNone.
 
   if (m_dragOperation ==
       WebDragOperationNone) {  // IPC RACE CONDITION: do not allow this drop.
     dragTargetDragLeave();
     return;
   }
 
   m_currentDragData->setModifiers(modifiers);
-  DragData dragData(m_currentDragData.get(), clientPoint, screenPoint,
+  DragData dragData(m_currentDragData.get(), pointInRootFrame, screenPoint,
                     static_cast<DragOperation>(m_operationsAllowed));
 
   UserGestureIndicator gesture(DefinitelyProcessingNewUserGesture);
   m_page->dragController().performDrag(&dragData);
 
   m_dragOperation = WebDragOperationNone;
   m_currentDragData = nullptr;
 }
 
 void WebViewImpl::spellingMarkers(WebVector<uint32_t>* markers) {
@@ skipping 16 matching lines @@
   convertedWords.append(words.data(), words.size());
 
   for (Frame* frame = m_page->mainFrame(); frame;
        frame = frame->tree().traverseNext()) {
     if (frame->isLocalFrame())
       toLocalFrame(frame)->removeSpellingMarkersUnderWords(convertedWords);
   }
 }
 
 WebDragOperation WebViewImpl::dragTargetDragEnterOrOver(
-    const WebPoint& clientPoint,
+    const WebPoint& pointInViewport,
     const WebPoint& screenPoint,
     DragAction dragAction,
     int modifiers) {
   DCHECK(m_currentDragData);
 
+  WebPoint pointInRootFrame(
+      page()->frameHost().visualViewport().viewportToRootFrame(
+          pointInViewport));
+
   m_currentDragData->setModifiers(modifiers);
-  DragData dragData(m_currentDragData.get(), clientPoint, screenPoint,
+  DragData dragData(m_currentDragData.get(), pointInRootFrame, screenPoint,
                     static_cast<DragOperation>(m_operationsAllowed));
 
   DragSession dragSession;
   if (dragAction == DragEnter)
     dragSession = m_page->dragController().dragEntered(&dragData);
   else
     dragSession = m_page->dragController().dragUpdated(&dragData);
 
   DragOperation dropEffect = dragSession.operation;
 
@@ skipping 807 matching lines @@
   if (focusedFrame->localFrameRoot() != mainFrameImpl()->frame())
     return nullptr;
   return focusedFrame;
 }
 
 LocalFrame* WebViewImpl::focusedLocalFrameAvailableForIme() const {
   return m_imeAcceptEvents ? focusedLocalFrameInWidget() : nullptr;
 }
 
 }  // namespace blink