Move download messages from Renderer to Frame filter.

third_party/WebKit/Source/web/WebLocalFrameImpl.cpp

 /*
  * Copyright (C) 2009 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 102 matching lines @@
 #include "core/editing/serializers/Serialization.h"
 #include "core/editing/spellcheck/SpellChecker.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/fetch/SubstituteData.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/RemoteFrame.h"
 #include "core/frame/Settings.h"
 #include "core/frame/UseCounter.h"
+#include "core/frame/VisualViewport.h"
 #include "core/html/HTMLAnchorElement.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLFormElement.h"
 #include "core/html/HTMLFrameElementBase.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/html/HTMLHeadElement.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLLinkElement.h"
 #include "core/html/PluginDocument.h"
@@ skipping 1618 matching lines @@
     UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
     v8::HandleScope handleScope(toIsolate(frame()));
     v8::Local<v8::Value> result = frame()->script().executeScriptInMainWorldAndReturnValue(ScriptSourceCode(script));
     if (result.IsEmpty() || !result->IsString())
         return;
     String scriptResult = toCoreString(v8::Local<v8::String>::Cast(result));
     if (!frame()->navigationScheduler().locationChangePending())
         frame()->loader().replaceDocumentWhileExecutingJavaScriptURL(scriptResult, ownerDocument);
 }
 
+HitTestResult WebLocalFrameImpl::hitTestResultForVisualViewportPos(const IntPoint& posInViewport)
+{
+    IntPoint rootFramePoint(frame()->host()->visualViewport().viewportToRootFrame(posInViewport));

[dcheng, 2016/06/12 05:58:34]

Do you mind doing a quick test whether this does the right thing for an OOPI
that you'd have to scroll into the viewport? It doesn't seem like it'll work
properly in that case, and if that's true, we should stick a todo on it.

[brettw, 2016/06/15 17:22:12]

It seems to work.

+    IntPoint docPoint(frame()->view()->rootFrameToContents(rootFramePoint));
+    HitTestResult result = frame()->eventHandler().hitTestResultAtPoint(docPoint, HitTestRequest::ReadOnly | HitTestRequest::Active);
+    result.setToShadowHostIfInUserAgentShadowRoot();
+    return result;
+}
+
 static void ensureFrameLoaderHasCommitted(FrameLoader& frameLoader)
 {
     // Internally, Blink uses CommittedMultipleRealLoads to track whether the
     // next commit should create a new history item or not. Ensure we have
     // reached that state.
     if (frameLoader.stateMachine()->committedMultipleRealLoads())
         return;
     frameLoader.stateMachine()->advanceTo(FrameLoaderStateMachine::CommittedMultipleRealLoads);
 }
 
@@ skipping 325 matching lines @@
 void WebLocalFrameImpl::setFrameWidget(WebFrameWidget* frameWidget)
 {
     m_frameWidget = frameWidget;
 }
 
 WebFrameWidget* WebLocalFrameImpl::frameWidget() const
 {
     return m_frameWidget;
 }
 
+void WebLocalFrameImpl::copyImageAt(const WebPoint& posInViewport)
+{
+    HitTestResult result = hitTestResultForVisualViewportPos(posInViewport);
+    if (!isHTMLCanvasElement(result.innerNodeOrImageMapImage()) && result.absoluteImageURL().isEmpty()) {
+        // There isn't actually an image at these coordinates.  Might be because
+        // the window scrolled while the context menu was open or because the page
+        // changed itself between when we thought there was an image here and when
+        // we actually tried to retreive the image.
+        //
+        // FIXME: implement a cache of the most recent HitTestResult to avoid having
+        //        to do two hit tests.
+        return;
+    }
+
+    frame()->editor().copyImage(result);
+}
+
+void WebLocalFrameImpl::saveImageAt(const WebPoint& posInViewport)
+{
+    Node* node = hitTestResultForVisualViewportPos(posInViewport).innerNodeOrImageMapImage();
+    if (!node || !(isHTMLCanvasElement(*node) || isHTMLImageElement(*node)))
+        return;
+
+    String url = toElement(*node).imageSourceURL();
+    if (!KURL(KURL(), url).protocolIsData())
+        return;
+
+    m_client->saveImageFromDataURL(url);
+}
+
 WebSandboxFlags WebLocalFrameImpl::effectiveSandboxFlags() const
 {
     if (!frame())
         return WebSandboxFlags::None;
     return static_cast<WebSandboxFlags>(frame()->loader().effectiveSandboxFlags());
 }
 
 void WebLocalFrameImpl::forceSandboxFlags(WebSandboxFlags flags)
 {
     frame()->loader().forceSandboxFlags(static_cast<SandboxFlags>(flags));
 }
 
 void WebLocalFrameImpl::clearActiveFindMatch()
 {
     ensureTextFinder().clearActiveFindMatch();
 }
 
 } // namespace blink