1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_VIEWS_WIDGET_DESKTOP_AURA_X11_MOVE_LOOP_H_ 6 #define UI_VIEWS_WIDGET_DESKTOP_AURA_X11_MOVE_LOOP_H_ 7 8 #include "ui/gfx/native_widget_types.h" 9 #include "ui/gfx/x/x11_types.h" 10 11 namespace views { 12 13 // Runs a nested message loop and grabs the mouse. This is used to implement 14 // dragging. 15 class X11MoveLoop { 16 public: 17 virtual ~X11MoveLoop() {} 18 19 // Runs the nested message loop. While the mouse is grabbed, use |cursor| as 20 // the mouse cursor. Returns true if the move-loop is completed successfully. 21 // If the pointer-grab fails, or the move-loop is canceled by the user (e.g. 22 // by pressing escape), then returns false. 23 virtual bool RunMoveLoop(aura::Window* window, gfx::NativeCursor cursor) = 0; 24 25 // Updates the cursor while the move loop is running. 26 virtual void UpdateCursor(gfx::NativeCursor cursor) = 0; 27 28 // Ends the move loop that's currently in progress. 29 virtual void EndMoveLoop() = 0; 30 }; 31 32 } // namespace views 33 34 #endif // UI_VIEWS_WIDGET_DESKTOP_AURA_X11_MOVE_LOOP_H_ 35
