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// Copyright 2012 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_BASE_X_X11_DESKTOP_WINDOW_MOVE_CLIENT_H_
#define UI_BASE_X_X11_DESKTOP_WINDOW_MOVE_CLIENT_H_
#include "base/component_export.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "ui/base/x/x11_move_loop_delegate.h"
#include "ui/base/x/x11_whole_screen_move_loop.h"
#include "ui/gfx/geometry/point.h"
namespace gfx {
class Rect;
}
namespace ui {
// When we're dragging tabs, we need to manually position our window.
class COMPONENT_EXPORT(UI_BASE_X) X11DesktopWindowMoveClient
: public X11MoveLoopDelegate {
public:
// Connection point that the window being moved needs to implement.
class Delegate {
public:
// Sets new window bounds.
virtual void SetBoundsOnMove(const gfx::Rect& requested_bounds) = 0;
// Returns the cursor that was used at the time the move started.
virtual scoped_refptr<X11Cursor> GetLastCursor() = 0;
// Returns the size part of the window bounds.
virtual gfx::Size GetSize() = 0;
protected:
virtual ~Delegate();
};
explicit X11DesktopWindowMoveClient(Delegate* window);
~X11DesktopWindowMoveClient() override;
// Overridden from X11WholeScreenMoveLoopDelegate:
void OnMouseMovement(const gfx::Point& screen_point,
int flags,
base::TimeTicks event_time) override;
void OnMouseReleased() override;
void OnMoveLoopEnded() override;
bool RunMoveLoop(bool can_grab_pointer, const gfx::Vector2d& drag_offset);
void EndMoveLoop();
private:
X11WholeScreenMoveLoop move_loop_{this};
// We need to keep track of this so we can actually move it when reacting to
// mouse events.
const raw_ptr<Delegate> window_;
// Our cursor offset from the top left window origin when the drag
// started. Used to calculate the window's new bounds relative to the current
// location of the cursor.
gfx::Vector2d window_offset_;
};
} // namespace ui
#endif // UI_BASE_X_X11_DESKTOP_WINDOW_MOVE_CLIENT_H_
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