Index: content/browser/renderer_host/java_bridge_dispatcher_host_manager.cc |
diff --git a/content/browser/renderer_host/java_bridge_dispatcher_host_manager.cc b/content/browser/renderer_host/java_bridge_dispatcher_host_manager.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..905adcfc5572c86f970eda0a5e9136231436dede |
--- /dev/null |
+++ b/content/browser/renderer_host/java_bridge_dispatcher_host_manager.cc |
@@ -0,0 +1,76 @@ |
+// 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 "content/browser/renderer_host/java_bridge_dispatcher_host_manager.h" |
+ |
+#include "base/utf_string_conversions.h" |
+#include "content/browser/renderer_host/java_bridge_dispatcher_host.h" |
+#include "content/browser/tab_contents/tab_contents.h" |
+ |
+JavaBridgeDispatcherHostManager::JavaBridgeDispatcherHostManager( |
+ TabContents* tab_contents) |
+ : TabContentsObserver(tab_contents) { |
+} |
+ |
+JavaBridgeDispatcherHostManager::~JavaBridgeDispatcherHostManager() { |
+ DCHECK_EQ(0U, instances_.size()); |
+} |
+ |
+void JavaBridgeDispatcherHostManager::AddNamedObject(const string16& name, |
+ NPObject* object) { |
+ // Record this object in a map so that we can add it into RenderViewHosts |
+ // created later. We don't need to take a reference because each |
+ // JavaBridgeDispatcherHost will do so. The object can't be deleted until |
+ // after RemoveNamedObject() is called, at which time we remove the entry |
+ // from the map. |
+ DCHECK(!instances_.empty()) << "There must be at least one instance present"; |
+ objects_[name] = object; |
+ |
+ for (InstanceMap::iterator iter = instances_.begin(); |
+ iter != instances_.end(); ++iter) { |
+ iter->second->AddNamedObject(name, object); |
+ } |
+} |
+ |
+void JavaBridgeDispatcherHostManager::RemoveNamedObject(const string16& name) { |
+ ObjectMap::iterator iter = objects_.find(name); |
+ if (iter == objects_.end()) { |
+ return; |
+ } |
+ |
+ objects_.erase(iter); |
+ |
+ for (InstanceMap::iterator iter = instances_.begin(); |
+ iter != instances_.end(); ++iter) { |
+ iter->second->RemoveNamedObject(name); |
+ } |
+} |
+ |
+void JavaBridgeDispatcherHostManager::RenderViewCreated( |
+ RenderViewHost* render_view_host) { |
+ // Creates a JavaBridgeDispatcherHost for the specified RenderViewHost and |
+ // adds all currently registered named objects to the new instance. |
+ scoped_refptr<JavaBridgeDispatcherHost> instance = |
+ new JavaBridgeDispatcherHost(render_view_host); |
+ |
+ for (ObjectMap::const_iterator iter = objects_.begin(); |
+ iter != objects_.end(); ++iter) { |
+ instance->AddNamedObject(iter->first, iter->second); |
+ } |
+ |
+ instances_[render_view_host] = instance; |
+} |
+ |
+void JavaBridgeDispatcherHostManager::RenderViewDeleted( |
+ RenderViewHost* render_view_host) { |
+ instances_.erase(render_view_host); |
+} |
+ |
+void JavaBridgeDispatcherHostManager::TabContentsDestroyed( |
+ TabContents* tab_contents) { |
+ // When the tab is shutting down, the TabContents clears its observers before |
+ // it kills all of its RenderViewHosts, so we won't get a call to |
+ // RenderViewDeleted() for all RenderViewHosts. |
+ instances_.clear(); |
+} |