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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_WEBAPPS_BROWSER_ANDROID_ADD_TO_HOMESCREEN_DATA_FETCHER_H_
#define COMPONENTS_WEBAPPS_BROWSER_ANDROID_ADD_TO_HOMESCREEN_DATA_FETCHER_H_
#include <string>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/task/cancelable_task_tracker.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "components/webapps/browser/android/shortcut_info.h"
#include "components/webapps/browser/installable/installable_logging.h"
#include "components/webapps/common/web_page_metadata_agent.mojom.h"
#include "content/public/browser/web_contents.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace favicon_base {
struct FaviconRawBitmapResult;
}
namespace webapps {
class InstallableManager;
struct InstallableData;
// Aysnchronously fetches and processes data needed to create a shortcut for an
// Android Home screen launcher.
class AddToHomescreenDataFetcher {
public:
class Observer {
public:
// Called when the homescreen icon title (and possibly information from the
// web manifest) is available.
virtual void OnUserTitleAvailable(const std::u16string& title,
const GURL& url,
bool is_webapk_compatible) = 0;
// Called when all the data needed to prompt the user to add to home screen
// is available.
virtual void OnDataAvailable(
const ShortcutInfo& info,
const SkBitmap& primary_icon,
const InstallableStatusCode installable_status) = 0;
protected:
virtual ~Observer() = default;
};
// Initialize the fetcher by requesting the information about the page from
// the renderer process. The initialization is asynchronous and
// OnDidGetWebAppInstallInfo is expected to be called when finished.
// |observer| must outlive AddToHomescreenDataFetcher.
AddToHomescreenDataFetcher(content::WebContents* web_contents,
int data_timeout_ms,
Observer* observer);
AddToHomescreenDataFetcher(const AddToHomescreenDataFetcher&) = delete;
AddToHomescreenDataFetcher& operator=(const AddToHomescreenDataFetcher&) =
delete;
~AddToHomescreenDataFetcher();
// Accessors, etc.
content::WebContents* web_contents() { return web_contents_.get(); }
const SkBitmap& primary_icon() const { return primary_icon_; }
ShortcutInfo& shortcut_info() { return shortcut_info_; }
private:
// Start the pipeline to fetch data.
void FetchInstallableData();
// Called to stop the timeout timer.
void StopTimer();
// Called if either InstallableManager or the favicon fetch takes too long.
void OnDataTimedout();
// Called when InstallableManager finishes looking for a manifest.
void OnDidGetInstallableData(const InstallableData& data);
// Called when InstallableManager finishes looking for a primary icon.
void OnDidGetPrimaryIcon(const InstallableData& data);
// Called when InstallableManager finishes checking for installability.
void OnDidPerformInstallableCheck(const InstallableData& data);
// Called when installable check failed on any step and continue with the add
// shortcut flow.
void PrepareToAddShortcut(bool fetch_favicon);
// Grabs the favicon for the current URL.
void FetchFavicon();
void OnFaviconFetched(
const favicon_base::FaviconRawBitmapResult& bitmap_result);
// Creates an icon to display to the user to confirm the add to home screen
// from the given |base_icon|. If |use_for_launcher| is true, the created icon
// will also be used as the launcher icon.
void CreateIconForView(const SkBitmap& base_icon);
// Notifies the observer that the shortcut data is all available.
void OnIconCreated(const SkBitmap& icon_for_view, bool is_icon_generated);
base::WeakPtr<content::WebContents> web_contents_;
raw_ptr<InstallableManager, DanglingUntriaged> installable_manager_;
raw_ptr<Observer> observer_;
InstallableStatusCode installable_status_code_ =
InstallableStatusCode::NO_ERROR_DETECTED;
// The icons must only be set on the UI thread for thread safety.
SkBitmap raw_primary_icon_;
SkBitmap primary_icon_;
ShortcutInfo shortcut_info_;
base::CancelableTaskTracker favicon_task_tracker_;
base::OneShotTimer data_timeout_timer_;
base::TimeTicks start_time_;
const base::TimeDelta data_timeout_ms_;
base::WeakPtrFactory<AddToHomescreenDataFetcher> weak_ptr_factory_{this};
};
} // namespace webapps
#endif // COMPONENTS_WEBAPPS_BROWSER_ANDROID_ADD_TO_HOMESCREEN_DATA_FETCHER_H_
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