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// Copyright 2017 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 CHROME_RENDERER_EXTENSIONS_APP_HOOKS_DELEGATE_H_
#define CHROME_RENDERER_EXTENSIONS_APP_HOOKS_DELEGATE_H_
#include <string>
#include "base/macros.h"
#include "chrome/renderer/extensions/chrome_v8_extension_handler.h"
#include "extensions/renderer/bindings/api_binding_hooks_delegate.h"
#include "v8/include/v8.h"
class GURL;
namespace content {
class RenderFrame;
}
namespace extensions {
class APIRequestHandler;
class Dispatcher;
class ScriptContext;
// The custom hooks for the chrome.app API.
class AppHooksDelegate : public APIBindingHooksDelegate {
public:
using GetterCallback =
base::Callback<void(const v8::PropertyCallbackInfo<v8::Value>& info)>;
AppHooksDelegate(Dispatcher* dispatcher, APIRequestHandler* request_handler);
~AppHooksDelegate() override;
// APIBindingHooksDelegate:
APIBindingHooks::RequestResult HandleRequest(
const std::string& method_name,
const APISignature* signature,
v8::Local<v8::Context> context,
std::vector<v8::Local<v8::Value>>* arguments,
const APITypeReferenceMap& refs) override;
void InitializeTemplate(v8::Isolate* isolate,
v8::Local<v8::ObjectTemplate> object_template,
const APITypeReferenceMap& type_refs) override;
// Total misnomer. Returns true if there is a hosted app associated with
// |script_context| active in this process. This naming is to match the
// chrome.app function it implements.
bool GetIsInstalled(ScriptContext* script_context) const;
private:
// A helper class to handle IPC message sending/receiving. Isolated from
// AppHooksDelegate to avoid multiple inheritence.
class IPCHelper : public ChromeV8ExtensionHandler {
public:
explicit IPCHelper(AppHooksDelegate* owner);
~IPCHelper() override;
// Sends the IPC message to the browser to get the install state of the
// app.
void SendGetAppInstallStateMessage(content::RenderFrame* render_frame,
const GURL& url,
int request_id);
private:
// IPC::Listener:
bool OnMessageReceived(const IPC::Message& message) override;
// Handle for ExtensionMsg_GetAppInstallStateResponse; just forwards to
// AppHooksDelegate.
void OnAppInstallStateResponse(const std::string& state, int request_id);
AppHooksDelegate* owner_ = nullptr;
DISALLOW_COPY_AND_ASSIGN(IPCHelper);
};
// Returns the manifest of the extension associated with the frame.
v8::Local<v8::Value> GetDetails(ScriptContext* script_context) const;
// Determines the install state for the extension associated with the frame.
// Note that this could be "disabled" for hosted apps when the user visits the
// site but doesn't have the app enabled. The response is determined
// asynchronously before completing the request with the given |request_id|.
void GetInstallState(ScriptContext* script_context, int request_id);
// Returns the "running state" (one of running, cannot run, and ready to run)
// for the extension associated with the frame of the script context.
const char* GetRunningState(ScriptContext* script_context) const;
// Handle for ExtensionMsg_GetAppInstallStateResponse.
void OnAppInstallStateResponse(const std::string& state, int request_id);
// Dispatcher handle. Not owned.
Dispatcher* dispatcher_ = nullptr;
APIRequestHandler* request_handler_ = nullptr;
IPCHelper ipc_helper_;
GetterCallback callback_;
DISALLOW_COPY_AND_ASSIGN(AppHooksDelegate);
};
} // namespace extensions
#endif // CHROME_RENDERER_EXTENSIONS_APP_HOOKS_DELEGATE_H_
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