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// 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.
#ifndef CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
#define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
#include "base/id_map.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "content/public/renderer/render_view_observer.h"
#include "ipc/ipc_sender.h"
namespace WebKit {
class WebFrame;
struct WebPluginParams;
}
namespace content {
class BrowserPlugin;
class BrowserPluginManagerFactory;
class RenderViewImpl;
// BrowserPluginManager manages the routing of messages to the appropriate
// BrowserPlugin object based on its instance ID.
class CONTENT_EXPORT BrowserPluginManager
: public RenderViewObserver,
public base::RefCounted<BrowserPluginManager> {
public:
// Returns the one BrowserPluginManager for this process.
static BrowserPluginManager* Create(RenderViewImpl* render_view);
// Overrides factory for testing. Default (NULL) value indicates regular
// (non-test) environment.
static void set_factory_for_testing(BrowserPluginManagerFactory* factory) {
BrowserPluginManager::factory_ = factory;
}
BrowserPluginManager(RenderViewImpl* render_view);
// Creates a new BrowserPlugin object with a unique identifier.
// BrowserPlugin is responsible for associating itself with the
// BrowserPluginManager via AddBrowserPlugin. When it is destroyed, it is
// responsible for removing its association via RemoveBrowserPlugin.
virtual BrowserPlugin* CreateBrowserPlugin(
RenderViewImpl* render_view,
WebKit::WebFrame* frame,
const WebKit::WebPluginParams& params) = 0;
void AddBrowserPlugin(int instance_id, BrowserPlugin* browser_plugin);
void RemoveBrowserPlugin(int instance_id);
BrowserPlugin* GetBrowserPlugin(int instance_id) const;
void SetEmbedderFocus(const RenderViewImpl* embedder, bool focused);
RenderViewImpl* render_view() const { return render_view_; }
// RenderViewObserver implementation.
// BrowserPluginManager must override the default Send behavior.
virtual bool Send(IPC::Message* msg) OVERRIDE = 0;
// Don't destroy the BrowserPluginManager when the RenderViewImpl goes away.
// BrowserPluginManager's lifetime is managed by a reference count. Once
// the host RenderViewImpl and all BrowserPlugins release their references,
// then the BrowserPluginManager will be destroyed.
virtual void OnDestruct() OVERRIDE {}
protected:
// Friend RefCounted so that the dtor can be non-public.
friend class base::RefCounted<BrowserPluginManager>;
// Static factory instance (always NULL for non-test).
static BrowserPluginManagerFactory* factory_;
virtual ~BrowserPluginManager();
IDMap<BrowserPlugin> instances_;
base::WeakPtr<RenderViewImpl> render_view_;
int browser_plugin_counter_;
};
} // namespace content
#endif // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_MANAGER_H_
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