Cross-process postMessage

content/renderer/proxy_view_host.cc

+// Copyright (c) 2011 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 "proxy_view_host.h"
+#include "base/logging.h"
+#include "content/renderer/dom_proxy_listener.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebData.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebSettings.h"
+
+namespace content {
+
+ProxyViewHost::ProxyViewHost(RenderView* owner,
+                             int64 opener_browsing_instance_frame_id)
+  : RenderViewObserver(owner),
+    opener_browsing_instance_frame_id_(opener_browsing_instance_frame_id) {
+  webview_ = WebView::create(this);
+  webview_->settings()->setJavaScriptEnabled(true);
+  webview_->initializeMainFrame(this);
+
+  WebFrame* frame = webview_->mainFrame();
+
+  frame->loadHTMLString(std::string(), GURL("about:swappedout"),
+                        GURL("about:swappedout"), false);
+}
+
+void ProxyViewHost::didFinishDocumentLoad(WebFrame* frame) {
+  DCHECK_EQ(frame, webview_->mainFrame());
+  dom_proxy_listener_ = new DOMProxyListener(
+      frame, opener_browsing_instance_frame_id_);
+}
+
+void ProxyViewHost::Navigate(const GURL& url) {
+  // TODO(supersat): Does window.opener get reset on navigations?
+}
+
+void ProxyViewHost::ClosePage() {
+  // If the owner frame closes, the opener proxy is no longer needed.
+  delete this;
+}
+
+WebFrame* ProxyViewHost::mainFrame() {
+  return webview_->mainFrame();
+}
+
+ProxyViewHost::~ProxyViewHost() {
+  delete dom_proxy_listener_;
+  webview_->close();
+}
+
+}  // namespace content