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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 CHROME_BROWSER_INTENTS_CWS_INTENTS_REGISTRY_H_
#define CHROME_BROWSER_INTENTS_CWS_INTENTS_REGISTRY_H_
#pragma once
#include "base/callback_forward.h"
#include "base/gtest_prod_util.h"
#include "base/hash_tables.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/profiles/profile_keyed_service.h"
#include "content/public/common/url_fetcher_delegate.h"
#include "googleurl/src/gurl.h"
namespace net {
class URLRequestContextGetter;
}
// Handles storing and retrieving of web intents in the web database.
// The registry provides filtering logic to retrieve specific types of intents.
class CWSIntentsRegistry : public ProfileKeyedService,
public content::URLFetcherDelegate {
public:
// Data returned from CWS for a single service.
struct IntentExtensionInfo {
IntentExtensionInfo();
~IntentExtensionInfo();
string16 id; // The id of the extension.
string16 name; // The name of the extension.
int num_ratings; // Number of ratings in CWS store.
double average_rating; // The average CWS rating.
string16 manifest; // The containing extension's manifest info.
GURL icon_url; // Where to retrieve an icon for this service.
};
// List of Intent extensions, as returned by GetIntentServices's |callback|
typedef std::vector<IntentExtensionInfo> IntentExtensionList;
// Callback to return results from GetIntentServices upon completion.
typedef base::Callback<void(const IntentExtensionList&)> ResultsCallback;
// Requests all intent services matching |action| and |mimetype|.
// |mimetype| must conform to definition as outlined for
// WebIntentsRegistry::GetIntentServices.
// |callback| will be invoked upon retrieving results from CWS, returning
// a list of matching Intent extensions.
void GetIntentServices(const string16& action,
const string16& mimetype,
const ResultsCallback& callback);
// Build a REST query URL to retrieve intent info from CWS.
static GURL BuildQueryURL(const string16& action, const string16& type);
private:
// Make sure that only CWSIntentsRegistryFactory can create an instance of
// CWSIntentsRegistry.
friend class CWSIntentsRegistryFactory;
FRIEND_TEST_ALL_PREFIXES(CWSIntentsRegistryTest, ValidQuery);
FRIEND_TEST_ALL_PREFIXES(CWSIntentsRegistryTest, InvalidQuery);
// content::URLFetcherDelegate implementation.
virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
// |context| is a profile-dependent URL request context. Must not be NULL.
explicit CWSIntentsRegistry(net::URLRequestContextGetter* context);
virtual ~CWSIntentsRegistry();
struct IntentsQuery;
// This is an opaque version of URLFetcher*, so we can use it as a hash key.
typedef intptr_t URLFetcherHandle;
// Maps URL fetchers to queries.
typedef base::hash_map<URLFetcherHandle, IntentsQuery*> QueryMap;
// Map for all in-flight web data requests/intent queries.
QueryMap queries_;
// Request context for any CWS requests.
scoped_refptr<net::URLRequestContextGetter> request_context_;
DISALLOW_COPY_AND_ASSIGN(CWSIntentsRegistry);
};
#endif // CHROME_BROWSER_INTENTS_CWS_INTENTS_REGISTRY_H_
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