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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_ASH_CROSAPI_NEW_WINDOW_DELEGATE_H_
#define CHROME_BROWSER_UI_ASH_CROSAPI_NEW_WINDOW_DELEGATE_H_
#include "ash/public/cpp/new_window_delegate.h"
#include "base/memory/raw_ptr.h"
#include "base/scoped_multi_source_observation.h"
#include "base/scoped_observation.h"
#include "components/exo/wm_helper.h"
#include "ui/aura/window.h"
#include "ui/aura/window_observer.h"
// Handles opening new tabs and windows on behalf on ash.
// Use crosapi to control Lacros Browser.
// Web browser unrelated operations are forwarded to the given delegate.
class CrosapiNewWindowDelegate : public ash::NewWindowDelegate {
public:
// CrosapiNewWindowDelegate forwards methods which are not related to
// web browser to the given |delegate|.
explicit CrosapiNewWindowDelegate(ash::NewWindowDelegate* delegate);
CrosapiNewWindowDelegate(const CrosapiNewWindowDelegate&) = delete;
const CrosapiNewWindowDelegate& operator=(const CrosapiNewWindowDelegate&) =
delete;
~CrosapiNewWindowDelegate() override;
// Overridden from ash::NewWindowDelegate:
void NewTab() override;
void NewWindow(bool incognito, bool should_trigger_session_restore) override;
void NewWindowForDetachingTab(
aura::Window* source_window,
const ui::OSExchangeData& drop_data,
NewWindowForDetachingTabCallback closure) override;
void OpenUrl(const GURL& url,
OpenUrlFrom from,
Disposition disposition) override;
void OpenCalculator() override;
void OpenFileManager() override;
void OpenDownloadsFolder() override;
void OpenCrosh() override;
void OpenGetHelp() override;
void RestoreTab() override;
void ShowKeyboardShortcutViewer() override;
void ShowShortcutCustomizationApp() override;
void ShowTaskManager() override;
void OpenDiagnostics() override;
void OpenFeedbackPage(FeedbackSource source,
const std::string& description_template) override;
void OpenPersonalizationHub() override;
private:
// Observes the aura::Window instances created after the webui tab-drop
// has been requested. Its OnWindowPropertyChanged() override checks for
// a specific |window_id| to invoke the closure routine.
class WindowObserver : public exo::WMHelper::ExoWindowObserver,
public aura::WindowObserver {
public:
explicit WindowObserver(CrosapiNewWindowDelegate* owner,
NewWindowForDetachingTabCallback closure);
~WindowObserver() override;
// aura::WindowObserver overrides.
void OnWindowVisibilityChanged(aura::Window* window, bool visible) override;
void OnWindowDestroying(aura::Window* window) override;
// WMHelper::ExoWindowObserver overrides.
void OnExoWindowCreated(aura::Window* window) override;
void SetWindowID(const std::string& window_id);
private:
raw_ptr<CrosapiNewWindowDelegate, ExperimentalAsh> owner_;
// Observes windows launched after window tab-drop request.
base::ScopedMultiSourceObservation<aura::Window, aura::WindowObserver>
observed_windows_{this};
// The callback must be called, even out of the scope of
// OnWindowPropertyChanged(), since it owns ownership of its callee
// (ash::TabDragDropDelegate).
NewWindowForDetachingTabCallback closure_;
// Stores the window id of the Lacros window created by
// CrosapiNewWindowDelegate::NewWindowForDetachingTab().
std::string window_id_;
// Stores the set of Exo aura::Window instances whose surface widget has
// been committed prior to |window_id_| is set.
std::set<aura::Window*> windows_committed_prior_to_window_id_;
};
// Destroys the WindowObserver once the "WebUI tab-drop closure routine has
// been invoked".
void DestroyWindowObserver();
// Not owned. Practically, this should point to ChromeNewWindowClient in
// production.
const raw_ptr<ash::NewWindowDelegate, ExperimentalAsh> delegate_;
std::unique_ptr<WindowObserver> window_observer_;
};
#endif // CHROME_BROWSER_UI_ASH_CROSAPI_NEW_WINDOW_DELEGATE_H_
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