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// 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.
#ifndef CONTENT_COMMON_CONTENT_CLIENT_H_
#define CONTENT_COMMON_CONTENT_CLIENT_H_
#pragma once
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/string16.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
class CommandLine;
class GURL;
struct GPUInfo;
struct PepperPluginInfo;
namespace IPC {
class Message;
}
namespace base {
class StringPiece;
}
namespace sandbox {
class TargetPolicy;
}
namespace content {
class ContentBrowserClient;
class ContentClient;
class ContentPluginClient;
class ContentRendererClient;
class ContentUtilityClient;
// Setter and getter for the client. The client should be set early, before any
// content code is called.
CONTENT_EXPORT void SetContentClient(ContentClient* client);
CONTENT_EXPORT ContentClient* GetContentClient();
// Returns the user agent string being used by the browser. SetContentClient()
// must be called prior to calling this, and this routine must be used
// instead of webkit_glue::GetUserAgent() in order to ensure that we use
// the same user agent string everywhere.
// TODO(dpranke): This is caused by webkit_glue being a library that can
// get linked into multiple linkable objects, causing us to have multiple
// static values of the user agent. This will be fixed when we clean up
// webkit_glue.
CONTENT_EXPORT const std::string& GetUserAgent(const GURL& url);
// Interface that the embedder implements.
class CONTENT_EXPORT ContentClient {
public:
ContentClient();
virtual ~ContentClient();
ContentBrowserClient* browser() { return browser_; }
void set_browser(ContentBrowserClient* c) { browser_ = c; }
ContentPluginClient* plugin() { return plugin_; }
void set_plugin(ContentPluginClient* p) { plugin_ = p; }
ContentRendererClient* renderer() { return renderer_; }
void set_renderer(ContentRendererClient* r) { renderer_ = r; }
ContentUtilityClient* utility() { return utility_; }
void set_utility(ContentUtilityClient* u) { utility_ = u; }
// Sets the currently active URL. Use GURL() to clear the URL.
virtual void SetActiveURL(const GURL& url) = 0;
// Sets the data on the current gpu.
virtual void SetGpuInfo(const GPUInfo& gpu_info) = 0;
// Gives the embedder a chance to register its own pepper plugins.
virtual void AddPepperPlugins(std::vector<PepperPluginInfo>* plugins) = 0;
// Returns whether the given message should be allowed to be sent from a
// swapped out renderer.
virtual bool CanSendWhileSwappedOut(const IPC::Message* msg) = 0;
// Returns whether the given message should be processed in the browser on
// behalf of a swapped out renderer.
virtual bool CanHandleWhileSwappedOut(const IPC::Message& msg) = 0;
// Returns the user agent and a flag indicating whether the returned
// string should always be used (if false, callers may override the
// value as needed to work around various user agent sniffing bugs).
virtual std::string GetUserAgent(bool *overriding) const = 0;
// Returns a string resource given its id.
virtual string16 GetLocalizedString(int message_id) const = 0;
// Return the contents of a resource in a StringPiece given the resource id.
virtual base::StringPiece GetDataResource(int resource_id) const = 0;
#if defined(OS_WIN)
// Allows the embedder to sandbox a plugin, and apply a custom policy.
virtual bool SandboxPlugin(CommandLine* command_line,
sandbox::TargetPolicy* policy) = 0;
#endif
private:
// The embedder API for participating in browser logic.
ContentBrowserClient* browser_;
// The embedder API for participating in plugin logic.
ContentPluginClient* plugin_;
// The embedder API for participating in renderer logic.
ContentRendererClient* renderer_;
// The embedder API for participating in utility logic.
ContentUtilityClient* utility_;
};
} // namespace content
#endif // CONTENT_COMMON_CONTENT_CLIENT_H_
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