15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_DISPATCHER_HOST_MANAGER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_DISPATCHER_HOST_MANAGER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <map> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/android/jni_helper.h" 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/android/scoped_java_ref.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/ref_counted.h" 142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/memory/weak_ptr.h" 15868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/strings/string16.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/web_contents_observer.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct NPObject; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class JavaBridgeDispatcherHost; 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class RenderViewHost; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This class handles injecting Java objects into all of the RenderViews 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// associated with a WebContents. It manages a set of JavaBridgeDispatcherHost 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// objects, one per RenderViewHost. 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class JavaBridgeDispatcherHostManager 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : public WebContentsObserver, 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) public base::SupportsWeakPtr<JavaBridgeDispatcherHostManager> { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit JavaBridgeDispatcherHostManager(WebContents* web_contents); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~JavaBridgeDispatcherHostManager(); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // These methods add or remove the object to each JavaBridgeDispatcherHost. 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Each one holds a reference to the NPObject while the object is bound to 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the corresponding RenderView. See JavaBridgeDispatcherHost for details. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void AddNamedObject(const string16& name, NPObject* object); 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void RemoveNamedObject(const string16& name); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Every time a JavaBoundObject backed by a real Java object is 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // created/destroyed, we insert/remove a strong ref to that Java object into 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // this set so that it doesn't get garbage collected while it's still 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // potentially in use. Although the set is managed native side, it's owned 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // and defined in Java so that pushing refs into it does not create new GC 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // roots that would prevent ContentViewCore from being garbage collected. 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void SetRetainedObjectSet(const JavaObjectWeakGlobalRef& retained_object_set); 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // WebContentsObserver overrides 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void RenderViewDeleted(RenderViewHost* render_view_host) OVERRIDE; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE; 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void DocumentAvailableInMainFrame() OVERRIDE; 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void JavaBoundObjectCreated(const base::android::JavaRef<jobject>& object); 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void JavaBoundObjectDestroyed(const base::android::JavaRef<jobject>& object); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef std::map<RenderViewHost*, scoped_refptr<JavaBridgeDispatcherHost> > 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InstanceMap; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InstanceMap instances_; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef std::map<string16, NPObject*> ObjectMap; 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ObjectMap objects_; 632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) JavaObjectWeakGlobalRef retained_object_set_; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(JavaBridgeDispatcherHostManager); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CONTENT_BROWSER_RENDERER_HOST_JAVA_JAVA_BRIDGE_DISPATCHER_HOST_MANAGER_H_ 71