Add a content API to create a message channel.

android_webview/native/aw_contents.cc

 // Copyright 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 "android_webview/native/aw_contents.h"
 
 #include <limits>
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_browser_main_parts.h"
@@ skipping 34 matching lines @@
 #include "base/supports_user_data.h"
 #include "components/autofill/content/browser/content_autofill_driver.h"
 #include "components/autofill/core/browser/autofill_manager.h"
 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
 #include "content/public/browser/android/content_view_core.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/cert_store.h"
 #include "content/public/browser/favicon_status.h"
+#include "content/public/browser/message_port_provider.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/renderer_preferences.h"
 #include "content/public/common/ssl_status.h"
 #include "jni/AwContents_jni.h"
 #include "net/base/auth.h"
 #include "net/cert/x509_certificate.h"
@@ skipping 59 matching lines @@
 
 base::subtle::Atomic32 g_instance_count = 0;
 
 void OnIoThreadClientReady(content::RenderFrameHost* rfh) {
   int render_process_id = rfh->GetProcess()->GetID();
   int render_frame_id = rfh->GetRoutingID();
   AwResourceDispatcherHostDelegate::OnIoThreadClientReady(
       render_process_id, render_frame_id);
 }
 
+void OnMessageChannelCreated(ScopedJavaGlobalRef<jobject>* callback,
+    int* port1, int* port2) {
+  JNIEnv* env = AttachCurrentThread();
+  Java_AwContents_onMessageChannelCreated(env, *port1, *port2,
+    callback->obj());
+}
+
 }  // namespace
 
 // static
 AwContents* AwContents::FromWebContents(WebContents* web_contents) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   return AwContentsUserData::GetContents(web_contents);
 }
 
 // static
 AwContents* AwContents::FromID(int render_process_id, int render_view_id) {
@@ skipping 1024 matching lines @@
     TRIM_MEMORY_MODERATE = 60,
   };
   if (level >= TRIM_MEMORY_MODERATE) {
     ReleaseHardwareDrawIfNeeded();
     return;
   }
 
   browser_view_renderer_.TrimMemory(level, visible);
 }
 
+// TODO(sgurun) add support for posting a frame whose name is known (only
+//               main frame is supported at this time, see crbug.com/389721)
+void AwContents::PostMessageToFrame(JNIEnv* env, jobject obj,
+    jstring frame_name, jstring message, jstring source_origin,
+    jstring target_origin, jintArray msgPorts) {
+
+  base::string16* j_source_origin = new base::string16;
+  ConvertJavaStringToUTF16(env, source_origin, j_source_origin);
+  base::string16* j_target_origin = new base::string16;
+  ConvertJavaStringToUTF16(env, target_origin, j_target_origin);
+  base::string16* j_message = new base::string16;
+  ConvertJavaStringToUTF16(env, message, j_message);
+  std::vector<int>* j_ports  = new std::vector<int>;
+
+  if (msgPorts != nullptr)
+    base::android::JavaIntArrayToIntVector(env, msgPorts, j_ports);
+
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&content::MessagePortProvider::PostMessageToFrame,
+                 web_contents_.get(),
+                 base::Owned(j_source_origin),
+                 base::Owned(j_target_origin),
+                 base::Owned(j_message),
+                 base::Owned(j_ports)));
+}
+
+void AwContents::CreateMessageChannel(JNIEnv* env, jobject obj,
+    jobject callback) {
+  ScopedJavaGlobalRef<jobject>* j_callback = new ScopedJavaGlobalRef<jobject>();
+  j_callback->Reset(env, callback);
+
+  int* port1 = new int;
+  int* port2 = new int;
+  BrowserThread::PostTaskAndReply(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&content::MessagePortProvider::CreateMessageChannel,
+                 web_contents_.get(),
+                 port1,
+                 port2),
+      base::Bind(&OnMessageChannelCreated,
+                 base::Owned(j_callback),
+                 base::Owned(port1),
+                 base::Owned(port2)));
+}
+
+
 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
   g_should_download_favicons = true;
 }
 
 }  // namespace android_webview