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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 ASH_CAPTURE_MODE_FOLDER_SELECTION_DIALOG_CONTROLLER_H_
#define ASH_CAPTURE_MODE_FOLDER_SELECTION_DIALOG_CONTROLLER_H_
#include "ash/wm/window_dimmer.h"
#include "base/files/file_path.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/scoped_observation.h"
#include "ui/aura/window.h"
#include "ui/shell_dialogs/select_file_dialog.h"
#include "ui/wm/core/transient_window_manager.h"
#include "ui/wm/core/transient_window_observer.h"
namespace ui {
class Event;
} // namespace ui
namespace ash {
// Creates, shows and controls capture mode's folder selection dialog.
class FolderSelectionDialogController : public ui::SelectFileDialog::Listener,
public wm::TransientWindowObserver {
public:
class Delegate {
public:
// Called to inform the delegate that the user selected the given |path|.
virtual void OnFolderSelected(const base::FilePath& path) = 0;
// Called to inform the delegate that the dialog window has been added.
virtual void OnSelectionWindowAdded() = 0;
// Called to inform the delegate that the dialog window has been closed.
// This will be called for both when the user selects and accepts a folder
// or cancels or closes the dialog without making a selection.
virtual void OnSelectionWindowClosed() = 0;
protected:
virtual ~Delegate() = default;
};
// Constructs and shows a folder selection dialog under the given |root|
// window.
FolderSelectionDialogController(Delegate* delegate, aura::Window* root);
FolderSelectionDialogController(const FolderSelectionDialogController&) =
delete;
FolderSelectionDialogController& operator=(
const FolderSelectionDialogController&) = delete;
~FolderSelectionDialogController() override;
aura::Window* dialog_window() { return dialog_window_; }
bool did_user_select_a_folder() const { return did_user_select_a_folder_; }
// Returns false while the dialog window is shown, and the |event| is
// targeting a window in the dialog subtree (in this case, the
// |CaptureModeSession| should not consume this event and let it go through to
// the dialog). Returns true otherwise so the session can consume this event.
bool ShouldConsumeEvent(const ui::Event* event) const;
// ui::SelectFileDialog::Listener:
void FileSelected(const ui::SelectedFileInfo& file, int index) override;
// wm::TransientWindowObserver:
void OnTransientChildAdded(aura::Window* window,
aura::Window* transient) override;
void OnTransientChildRemoved(aura::Window* window,
aura::Window* transient) override;
private:
friend class CaptureModeTestApi;
const raw_ptr<Delegate> delegate_;
// Dims everything behind the dialog (including the capture bar, the settings
// menu, and any capture-related UIs). The dimming window is the transient
// parent of the dialog window.
WindowDimmer dialog_background_dimmer_;
// Provides us with the APIs needed to construct a folder selection dialog.
scoped_refptr<ui::SelectFileDialog> select_folder_dialog_;
// This is the window of the dialog that gets created by
// |select_folder_dialog_| as a transient child of the dimming window.
raw_ptr<aura::Window> dialog_window_ = nullptr;
// It will be set to true when user selects a folder from the dialog.
bool did_user_select_a_folder_ = false;
// An optional callback that will be invoked when |dialog_window_| gets added.
base::OnceClosure on_dialog_window_added_callback_for_test_;
// We observe the transient window manager of the dimming window to know when
// the dialog window is added or removed.
base::ScopedObservation<wm::TransientWindowManager,
wm::TransientWindowObserver>
window_observation_{this};
};
} // namespace ash
#endif // ASH_CAPTURE_MODE_FOLDER_SELECTION_DIALOG_CONTROLLER_H_
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