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// Copyright 2013 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_ANDROID_SHORTCUT_HELPER_H_
#define CHROME_BROWSER_ANDROID_SHORTCUT_HELPER_H_
#include "base/android/jni_helper.h"
#include "base/basictypes.h"
#include "base/strings/string16.h"
#include "base/task/cancelable_task_tracker.h"
#include "chrome/browser/android/tab_android.h"
#include "content/public/browser/web_contents_observer.h"
namespace chrome {
struct FaviconBitmapResult;
} // namespace chrome
namespace content {
class WebContents;
} // namespace content
namespace IPC {
class Message;
}
class GURL;
// Adds a shortcut to the current URL to the Android home screen.
// This proceeds over three phases:
// 1) The renderer is asked to parse out webapp related meta tags with an async
// IPC message.
// 2) The highest-resolution favicon available is retrieved for use as the
// icon on the home screen.
// 3) A JNI call is made to fire an Intent at the Android launcher, which adds
// the shortcut.
class ShortcutBuilder : public content::WebContentsObserver {
public:
enum ShortcutType {
APP_SHORTCUT,
APP_SHORTCUT_APPLE,
BOOKMARK
};
explicit ShortcutBuilder(content::WebContents* web_contents,
const base::string16& title,
int launcher_large_icon_size);
virtual ~ShortcutBuilder() {}
void OnDidRetrieveWebappInformation(bool success,
bool is_mobile_webapp_capable,
bool is_apple_mobile_webapp_capable,
const GURL& expected_url);
void FinishAddingShortcut(const chrome::FaviconBitmapResult& bitmap_result);
// WebContentsObserver
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
virtual void WebContentsDestroyed(content::WebContents* web_contents)
OVERRIDE;
private:
void Destroy();
GURL url_;
base::string16 title_;
int launcher_large_icon_size_;
ShortcutType shortcut_type_;
base::CancelableTaskTracker cancelable_task_tracker_;
DISALLOW_COPY_AND_ASSIGN(ShortcutBuilder);
};
class ShortcutHelper {
public:
// Adds a shortcut to the current URL to the Android home screen, firing
// background tasks to pull all the data required.
static void AddShortcut(content::WebContents* web_contents,
const base::string16& title,
int launcher_larger_icon_size);
// Adds a shortcut to the launcher. Must be called from a WorkerPool task.
static void AddShortcutInBackground(
const GURL& url,
const base::string16& title,
ShortcutBuilder::ShortcutType shortcut_type,
const chrome::FaviconBitmapResult& bitmap_result);
// Registers JNI hooks.
static bool RegisterShortcutHelper(JNIEnv* env);
private:
DISALLOW_COPY_AND_ASSIGN(ShortcutHelper);
};
#endif // CHROME_BROWSER_ANDROID_SHORTCUT_HELPER_H_
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