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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 UI_TOUCH_SELECTION_TOUCH_SELECTION_MENU_RUNNER_H_
#define UI_TOUCH_SELECTION_TOUCH_SELECTION_MENU_RUNNER_H_
#include "base/memory/weak_ptr.h"
#include "base/strings/string_util.h"
#include "ui/touch_selection/ui_touch_selection_export.h"
namespace aura {
class Window;
}
namespace gfx {
class Rect;
class Size;
}
namespace ui {
// Client interface for TouchSelectionMenuRunner.
class UI_TOUCH_SELECTION_EXPORT TouchSelectionMenuClient {
public:
TouchSelectionMenuClient();
virtual ~TouchSelectionMenuClient();
virtual bool IsCommandIdEnabled(int command_id) const = 0;
virtual void ExecuteCommand(int command_id, int event_flags) = 0;
// Called when the quick menu needs to run a context menu. Depending on the
// implementation, this may run the context menu synchronously, or request the
// menu to show up in which case the menu will run asynchronously at a later
// time.
virtual void RunContextMenu() = 0;
// Whether the Quick Menu should be opened.
virtual bool ShouldShowQuickMenu() = 0;
// Returns the current text selection.
virtual std::u16string GetSelectedText() = 0;
// Returns a WeakPtr to this client. `TouchSelectionMenuRunnerChromeOS`
// performs asynchronous work before showing the menu. The client can be
// deleted during that time window. See https://crbug.com/1146270
base::WeakPtr<TouchSelectionMenuClient> GetWeakPtr();
private:
base::WeakPtrFactory<TouchSelectionMenuClient> weak_factory_{this};
};
// An interface for the singleton object responsible for running touch selection
// quick menu.
class UI_TOUCH_SELECTION_EXPORT TouchSelectionMenuRunner {
public:
TouchSelectionMenuRunner(const TouchSelectionMenuRunner&) = delete;
TouchSelectionMenuRunner& operator=(const TouchSelectionMenuRunner&) = delete;
virtual ~TouchSelectionMenuRunner();
static TouchSelectionMenuRunner* GetInstance();
// Checks whether there is any command available to show in the menu.
virtual bool IsMenuAvailable(
const TouchSelectionMenuClient* client) const = 0;
// Creates and displays the quick menu, if there is any command available.
// |anchor_rect| is in screen coordinates.
virtual void OpenMenu(base::WeakPtr<TouchSelectionMenuClient> client,
const gfx::Rect& anchor_rect,
const gfx::Size& handle_image_size,
aura::Window* context) = 0;
virtual void CloseMenu() = 0;
virtual bool IsRunning() const = 0;
protected:
TouchSelectionMenuRunner();
};
} // namespace ui
#endif // UI_TOUCH_SELECTION_TOUCH_SELECTION_MENU_RUNNER_H_
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