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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.
//
//
// This file contains the Extension App autocomplete provider. The provider
// is responsible for keeping track of which Extension Apps are installed and
// their URLs. An instance of it gets created and managed by the autocomplete
// controller.
//
// For more information on the autocomplete system in general, including how
// the autocomplete controller and autocomplete providers work, see
// chrome/browser/autocomplete.h.
#ifndef CHROME_BROWSER_AUTOCOMPLETE_EXTENSION_APP_PROVIDER_H_
#define CHROME_BROWSER_AUTOCOMPLETE_EXTENSION_APP_PROVIDER_H_
#pragma once
#include <string>
#include <utility>
#include <vector>
#include "base/compiler_specific.h"
#include "chrome/browser/autocomplete/autocomplete.h"
#include "chrome/browser/autocomplete/autocomplete_match.h"
#include "content/common/notification_observer.h"
#include "content/common/notification_registrar.h"
class TemplateURLModel;
class ExtensionAppProvider : public AutocompleteProvider,
public NotificationObserver {
public:
ExtensionAppProvider(ACProviderListener* listener, Profile* profile);
// Only used for testing.
void AddExtensionAppForTesting(const std::string& app_name,
const std::string url);
// AutocompleteProvider implementation:
virtual void Start(const AutocompleteInput& input,
bool minimal_changes) OVERRIDE;
private:
// An ExtensionApp is a pair of Extension Name and the Launch URL.
typedef std::pair<std::string, std::string> ExtensionApp;
typedef std::vector<ExtensionApp> ExtensionApps;
virtual ~ExtensionAppProvider();
// Fetch the current app list and cache it locally.
void RefreshAppList();
// Register for install/uninstall notification so we can update our cache.
void RegisterForNotifications();
// Highlights a certain part of a match string within a certain match class.
// |input| is the input we got from the user, |match_class| is the
// AutoComplete match classification that keeps track of the highlighting
// values, and |iter| is the location of the user input found within
// |match_string|.
void HighlightMatch(const AutocompleteInput& input,
ACMatchClassifications* match_class,
std::string::const_iterator iter,
const std::string& match_string);
// Calculate the relevance of the match.
int CalculateRelevance(AutocompleteInput::Type type,
int input_length,
int target_length,
const GURL& url);
// NotificationObserver implementation:
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) OVERRIDE;
NotificationRegistrar registrar_;
// Our cache of ExtensionApp objects (name + url) representing the extension
// apps we know about.
ExtensionApps extension_apps_;
DISALLOW_COPY_AND_ASSIGN(ExtensionAppProvider);
};
#endif // CHROME_BROWSER_AUTOCOMPLETE_EXTENSION_APP_PROVIDER_H_
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