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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_UI_WEBUI_NTP_NEW_TAB_UI_H_
#define CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_UI_H_
#include <map>
#include <string>
#include "base/macros.h"
#include "base/strings/string16.h"
#include "components/prefs/pref_change_registrar.h"
#include "content/public/browser/url_data_source.h"
#include "content/public/browser/web_ui_controller.h"
class GURL;
class Profile;
namespace base {
class DictionaryValue;
}
namespace user_prefs {
class PrefRegistrySyncable;
}
// The WebUIController used for the incognito and guest mode New Tab page.
class NewTabUI : public content::WebUIController {
public:
explicit NewTabUI(content::WebUI* web_ui);
~NewTabUI() override;
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
// Returns whether or not to show apps pages.
static bool ShouldShowApps();
// TODO(dbeam): why are these static |Set*()| methods on NewTabUI?
// Adds "url", "title", and "direction" keys on incoming dictionary, setting
// title as the url as a fallback on empty title.
static void SetUrlTitleAndDirection(base::DictionaryValue* dictionary,
const base::string16& title,
const GURL& gurl);
// Adds "full_name" and "full_name_direction" keys on incoming dictionary.
static void SetFullNameAndDirection(const base::string16& full_name,
base::DictionaryValue* dictionary);
// Returns a pointer to a NewTabUI if the WebUIController object is a new tab
// page.
static NewTabUI* FromWebUIController(content::WebUIController* ui);
private:
class NewTabHTMLSource : public content::URLDataSource {
public:
explicit NewTabHTMLSource(Profile* profile);
~NewTabHTMLSource() override;
// content::URLDataSource implementation.
std::string GetSource() const override;
void StartDataRequest(
const std::string& path,
int render_process_id,
int render_frame_id,
const content::URLDataSource::GotDataCallback& callback) override;
std::string GetMimeType(const std::string&) const override;
bool ShouldReplaceExistingSource() const override;
bool ShouldAddContentSecurityPolicy() const override;
// Adds |resource| to the source. |resource_id| is resource id or 0,
// which means return empty data set. |mime_type| is mime type of the
// resource.
void AddResource(const char* resource,
const char* mime_type,
int resource_id);
private:
// Pointer back to the original profile.
Profile* profile_;
// Maps resource files to mime types an resource ids.
std::map<std::string, std::pair<std::string, int> > resource_map_;
DISALLOW_COPY_AND_ASSIGN(NewTabHTMLSource);
};
void OnShowBookmarkBarChanged();
Profile* GetProfile() const;
PrefChangeRegistrar pref_change_registrar_;
DISALLOW_COPY_AND_ASSIGN(NewTabUI);
};
#endif // CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_UI_H_
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