Implement Mac Pop-up Dictionary for OOPIF.

content/renderer/text_input_client_observer.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/text_input_client_observer.h"
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "build/build_config.h"
 #include "content/common/text_input_client_messages.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
+#include "content/renderer/render_frame_impl.h"
 #include "content/renderer/render_view_impl.h"
+#include "content/renderer/render_widget.h"
+#include "ipc/ipc_message.h"
 #include "third_party/WebKit/public/platform/WebPoint.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "third_party/WebKit/public/web/mac/WebSubstringUtil.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace content {
 
-TextInputClientObserver::TextInputClientObserver(RenderViewImpl* render_view)
-#if defined(ENABLE_PLUGINS)
-    : RenderViewObserver(render_view), render_view_impl_(render_view) {
-#else
-    : RenderViewObserver(render_view) {
-#endif
-}
+TextInputClientObserver::TextInputClientObserver(RenderWidget* render_widget)
+    : render_widget_(render_widget) {}
 
 TextInputClientObserver::~TextInputClientObserver() {
 }
 
 bool TextInputClientObserver::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(TextInputClientObserver, message)
     IPC_MESSAGE_HANDLER(TextInputClientMsg_StringAtPoint,
                         OnStringAtPoint)
     IPC_MESSAGE_HANDLER(TextInputClientMsg_CharacterIndexForPoint,
                         OnCharacterIndexForPoint)
     IPC_MESSAGE_HANDLER(TextInputClientMsg_FirstRectForCharacterRange,
                         OnFirstRectForCharacterRange)
     IPC_MESSAGE_HANDLER(TextInputClientMsg_StringForRange, OnStringForRange)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void TextInputClientObserver::OnDestruct() {
-  delete this;
+bool TextInputClientObserver::Send(IPC::Message* message) {
+  return render_widget_->Send(message);
 }
 
-blink::WebView* TextInputClientObserver::webview() {
-  return render_view()->GetWebView();
+blink::WebFrameWidget* TextInputClientObserver::GetWebFrameWidget() const {
+  blink::WebWidget* widget = render_widget_->GetWebWidget();
+  // We should always receive a WebFrameWidget in the call above. RenderViewImpl
+  // however might return a WebView if the main frame is destroyed, but as long
+  // as there is a rendered page, we should not be in that state and the RVImpl
+  // should be returning a frame widget.
+  DCHECK(widget->isWebFrameWidget());
+  return static_cast<blink::WebFrameWidget*>(render_widget_->GetWebWidget());
 }
 
+blink::WebLocalFrame* TextInputClientObserver::GetFocusedFrame() const {
+  blink::WebLocalFrame* focused =
+      RenderFrameImpl::FromWebFrame(GetWebFrameWidget()->localRoot())
+          ->render_view()
+          ->webview()
+          ->focusedFrame();
+  return focused->localRoot() == GetWebFrameWidget()->localRoot() ? focused
+                                                                  : nullptr;
+}
+
+#if defined(ENABLE_PLUGINS)
+PepperPluginInstanceImpl* TextInputClientObserver::GetFocusedPepperPlugin()
+    const {
+  blink::WebLocalFrame* focusedFrame = GetFocusedFrame();
+  return focusedFrame
+             ? RenderFrameImpl::FromWebFrame(focusedFrame)
+                   ->focused_pepper_plugin()
+             : nullptr;
+}
+#endif
+
 void TextInputClientObserver::OnStringAtPoint(gfx::Point point) {
 #if defined(OS_MACOSX)
   blink::WebPoint baselinePoint;
   NSAttributedString* string = blink::WebSubstringUtil::attributedWordAtPoint(
-      webview(), point, baselinePoint);
+      GetWebFrameWidget(), point, baselinePoint);
 
   std::unique_ptr<const mac::AttributedStringCoder::EncodedString> encoded(
       mac::AttributedStringCoder::Encode(string));
   Send(new TextInputClientReplyMsg_GotStringAtPoint(
-      routing_id(), *encoded.get(), baselinePoint));
+      render_widget_->routing_id(), *encoded.get(), baselinePoint));
 #else
   NOTIMPLEMENTED();
 #endif
 }
 
 void TextInputClientObserver::OnCharacterIndexForPoint(gfx::Point point) {
   blink::WebPoint web_point(point);
   uint32_t index = static_cast<uint32_t>(
-      webview()->focusedFrame()->characterIndexForPoint(web_point));
-  Send(new TextInputClientReplyMsg_GotCharacterIndexForPoint(routing_id(),
-      index));
+      GetFocusedFrame()->characterIndexForPoint(web_point));
+  Send(new TextInputClientReplyMsg_GotCharacterIndexForPoint(
+      render_widget_->routing_id(), index));
 }
 
 void TextInputClientObserver::OnFirstRectForCharacterRange(gfx::Range range) {
   gfx::Rect rect;
 #if defined(ENABLE_PLUGINS)
-  if (render_view_impl_->GetFocusedPepperPlugin()) {
-    rect = render_view_impl_->GetFocusedPepperPlugin()->GetCaretBounds();
+  PepperPluginInstanceImpl* focused_plugin = GetFocusedPepperPlugin();
+  if (focused_plugin) {
+    rect = focused_plugin->GetCaretBounds();
   } else
 #endif
   {
-    blink::WebLocalFrame* frame = webview()->focusedFrame();
+    blink::WebLocalFrame* frame = GetFocusedFrame();
     // TODO(yabinh): Null check should not be necessary.
     // See crbug.com/304341
     if (frame) {
       blink::WebRect web_rect;
       frame->firstRectForCharacterRange(range.start(), range.length(),
                                         web_rect);
       rect = web_rect;
     }
   }
-  Send(new TextInputClientReplyMsg_GotFirstRectForRange(routing_id(), rect));
+  Send(new TextInputClientReplyMsg_GotFirstRectForRange(
+      render_widget_->routing_id(), rect));
 }
 
 void TextInputClientObserver::OnStringForRange(gfx::Range range) {
 #if defined(OS_MACOSX)
   blink::WebPoint baselinePoint;
   NSAttributedString* string = nil;
-  blink::WebLocalFrame* frame = webview()->focusedFrame();
+  blink::WebLocalFrame* frame = GetFocusedFrame();
   // TODO(yabinh): Null check should not be necessary.
   // See crbug.com/304341
   if (frame) {
     string = blink::WebSubstringUtil::attributedSubstringInRange(
         frame, range.start(), range.length(), &baselinePoint);
   }
   std::unique_ptr<const mac::AttributedStringCoder::EncodedString> encoded(
       mac::AttributedStringCoder::Encode(string));
-  Send(new TextInputClientReplyMsg_GotStringForRange(routing_id(),
-      *encoded.get(), baselinePoint));
+  Send(new TextInputClientReplyMsg_GotStringForRange(
+      render_widget_->routing_id(), *encoded.get(), baselinePoint));
 #else
   NOTIMPLEMENTED();
 #endif
 }
 
 }  // namespace content