Copyright 2017 The Chromium Authors. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice (including the next paragraph) shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. The global interface exposing aura shell capabilities is used to instantiate an interface extension for a wl_surface object. This extended interface will then allow the client to use aura shell specific functionality. Instantiate an interface extension for the given wl_surface to provide aura shell functionality. If the given wl_surface is not associated with a shell surface, the shell_surface_missing protocol error is raised. Instantiate an interface extension for the given wl_output to provide aura shell functionality. An additional interface to a wl_surface object, which allows the client to access aura shell specific functionality for surface. Frame types that can be used to decorate a surface. Suggests a surface should use a specific frame. Set the "parent" of this surface. "x" and "y" arguments specify the initial position for surface relative to parent. Set the frame colors. Set the startup ID. Set the application ID. An additional interface to a wl_output object, which allows the client to access aura shell specific functionality for output. These flags describe properties of an output scale. They are used in the flags bitfield of the scale event. The scale event describes an available scale for the output. The event is sent when binding to the output object and there will always be one scale, the current scale. The event is sent again if an output changes scale, for the scale that is now current. In other words, the current scale is always the last scale that was received with the current flag set. The connection event describes how the output is connected. The event is sent when binding to the output object. This event describes the device specific scale factor for the output. The device specific scale factor is not expected the change during the lifetime of the output. And it is not limited to an integer value like the scale factor provided by wl_output interface. The exact contents scale used by the compositor can be determined by combining this device scale factor with the current output scale. The event is sent when binding to the output object.