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460 lines
18 KiB
460 lines
18 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="xdg_shell">
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<copyright>
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Copyright © 2008-2013 Kristian Høgsberg
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Copyright © 2013 Rafael Antognolli
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Copyright © 2013 Jasper St. Pierre
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Copyright © 2010-2013 Intel Corporation
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that copyright notice and this permission
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notice appear in supporting documentation, and that the name of
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the copyright holders not be used in advertising or publicity
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pertaining to distribution of the software without specific,
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written prior permission. The copyright holders make no
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representations about the suitability of this software for any
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purpose. It is provided "as is" without express or implied
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warranty.
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THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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</copyright>
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<interface name="xdg_shell" version="1">
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<description summary="create desktop-style surfaces">
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This interface is implemented by servers that provide
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desktop-style user interfaces.
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It allows clients to associate a xdg_surface with
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a basic surface.
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</description>
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<enum name="version">
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<description summary="latest protocol version">
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Use this enum to check the protocol version, and it will be updated
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automatically.
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</description>
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<entry name="current" value="2" summary="Always the latest version"/>
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</enum>
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<request name="use_unstable_version">
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<description summary="enable use of this unstable version">
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Use this request in order to enable use of this interface.
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Understand and agree that one is using an unstable interface,
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that will likely change in the future, breaking the API.
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</description>
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<arg name="version" type="int"/>
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</request>
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<request name="get_xdg_surface">
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<description summary="create a shell surface from a surface">
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Create a shell surface for an existing surface.
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Only one shell or popup surface can be associated with a given
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surface.
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</description>
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<arg name="id" type="new_id" interface="xdg_surface"/>
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<arg name="surface" type="object" interface="wl_surface"/>
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</request>
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<request name="get_xdg_popup">
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<description summary="create a shell surface from a surface">
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Create a popup surface for an existing surface.
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Only one shell or popup surface can be associated with a given
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surface.
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</description>
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<arg name="id" type="new_id" interface="xdg_popup"/>
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<arg name="surface" type="object" interface="wl_surface"/>
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<arg name="parent" type="object" interface="wl_surface"/>
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<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat whose pointer is used"/>
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<arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
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<arg name="x" type="int"/>
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<arg name="y" type="int"/>
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<arg name="flags" type="uint"/>
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</request>
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<event name="ping">
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<description summary="check if the client is alive">
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The ping event asks the client if it's still alive. Pass the
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serial specified in the event back to the compositor by sending
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a "pong" request back with the specified serial.
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Compositors can use this to determine if the client is still
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alive. It's unspecified what will happen if the client doesn't
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respond to the ping request, or in what timeframe. Clients should
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try to respond in a reasonable amount of time.
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</description>
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<arg name="serial" type="uint" summary="pass this to the callback"/>
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</event>
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<request name="pong">
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<description summary="respond to a ping event">
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A client must respond to a ping event with a pong request or
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the client may be deemed unresponsive.
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</description>
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<arg name="serial" type="uint" summary="serial of the ping event"/>
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</request>
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</interface>
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<interface name="xdg_surface" version="1">
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<description summary="desktop-style metadata interface">
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An interface that may be implemented by a wl_surface, for
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implementations that provide a desktop-style user interface.
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It provides requests to treat surfaces like windows, allowing to set
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properties like maximized, fullscreen, minimized, and to move and resize
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them, and associate metadata like title and app id.
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On the server side the object is automatically destroyed when
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the related wl_surface is destroyed. On client side,
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xdg_surface.destroy() must be called before destroying
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the wl_surface object.
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</description>
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<request name="destroy" type="destructor">
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<description summary="remove xdg_surface interface">
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The xdg_surface interface is removed from the wl_surface object
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that was turned into a xdg_surface with
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xdg_shell.get_xdg_surface request. The xdg_surface properties,
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like maximized and fullscreen, are lost. The wl_surface loses
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its role as a xdg_surface. The wl_surface is unmapped.
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</description>
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</request>
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<request name="set_transient_for">
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<description summary="surface is a child of another surface">
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Setting a surface as transient of another means that it is child
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of another surface.
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Child surfaces are stacked above their parents, and will be
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unmapped if the parent is unmapped too. They should not appear
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on task bars and alt+tab.
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</description>
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<arg name="parent" type="object" interface="wl_surface" allow-null="true"/>
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</request>
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<request name="set_margin">
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<description summary="set the visible frame boundaries">
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This tells the compositor what the visible size of the window
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should be, so it can use it to determine what borders to use for
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constrainment and alignment.
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CSD often has invisible areas for decoration purposes, like drop
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shadows. These "shadow" drawings need to be subtracted out of the
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normal boundaries of the window when computing where to place
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windows (e.g. to set this window so it's centered on top of another,
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or to put it to the left or right of the screen.)
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This value should change as little as possible at runtime, to
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prevent flicker.
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This value is also ignored when the window is maximized or
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fullscreen, and assumed to be 0.
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If never called, this value is assumed to be 0.
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</description>
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<arg name="left_margin" type="int"/>
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<arg name="right_margin" type="int"/>
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<arg name="top_margin" type="int"/>
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<arg name="bottom_margin" type="int"/>
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</request>
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<request name="set_title">
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<description summary="set surface title">
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Set a short title for the surface.
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This string may be used to identify the surface in a task bar,
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window list, or other user interface elements provided by the
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compositor.
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The string must be encoded in UTF-8.
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</description>
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<arg name="title" type="string"/>
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</request>
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<request name="set_app_id">
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<description summary="set surface class">
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Set an id for the surface.
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The app id identifies the general class of applications to which
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the surface belongs.
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It should be the ID that appears in the new desktop entry
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specification, the interface name.
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</description>
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<arg name="app_id" type="string"/>
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</request>
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<request name="move">
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<description summary="start an interactive move">
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Start a pointer-driven move of the surface.
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This request must be used in response to a button press event.
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The server may ignore move requests depending on the state of
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the surface (e.g. fullscreen or maximized).
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</description>
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<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat whose pointer is used"/>
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<arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
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</request>
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<enum name="resize_edge">
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<description summary="edge values for resizing">
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These values are used to indicate which edge of a surface
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is being dragged in a resize operation. The server may
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use this information to adapt its behavior, e.g. choose
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an appropriate cursor image.
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</description>
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<entry name="none" value="0"/>
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<entry name="top" value="1"/>
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<entry name="bottom" value="2"/>
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<entry name="left" value="4"/>
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<entry name="top_left" value="5"/>
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<entry name="bottom_left" value="6"/>
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<entry name="right" value="8"/>
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<entry name="top_right" value="9"/>
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<entry name="bottom_right" value="10"/>
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</enum>
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<request name="resize">
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<description summary="start an interactive resize">
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Start a pointer-driven resizing of the surface.
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This request must be used in response to a button press event.
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The server may ignore resize requests depending on the state of
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the surface (e.g. fullscreen or maximized).
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</description>
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<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat whose pointer is used"/>
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<arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
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<arg name="edges" type="uint" summary="which edge or corner is being dragged"/>
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</request>
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<event name="configure">
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<description summary="suggest resize">
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The configure event asks the client to resize its surface.
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The size is a hint, in the sense that the client is free to
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ignore it if it doesn't resize, pick a smaller size (to
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satisfy aspect ratio or resize in steps of NxM pixels).
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The client is free to dismiss all but the last configure
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event it received.
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The width and height arguments specify the size of the window
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in surface local coordinates.
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</description>
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<arg name="width" type="int"/>
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<arg name="height" type="int"/>
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</event>
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<request name="set_output">
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<description summary="set the default output used by this surface">
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Set the default output used by this surface when it is first mapped.
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If this value is NULL (default), it's up to the compositor to choose
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which display will be used to map this surface.
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When fullscreen or maximized state are set on this surface, and it
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wasn't mapped yet, the output set with this method will be used.
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Otherwise, the output where the surface is currently mapped will be
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used.
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</description>
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<arg name="output" type="object" interface="wl_output" allow-null="true"/>
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</request>
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<event name="request_set_fullscreen">
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<description summary="server requests that the client set fullscreen">
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Event sent from the compositor to the client requesting that the client
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goes to a fullscreen state. It's the client job to call set_fullscreen
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and really trigger the fullscreen state.
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</description>
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</event>
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<event name="request_unset_fullscreen">
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<description summary="server requests that the client unset fullscreen">
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Event sent from the compositor to the client requesting that the client
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leaves the fullscreen state. It's the client job to call
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unset_fullscreen and really leave the fullscreen state.
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</description>
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</event>
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<request name="set_fullscreen">
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<description summary="set the surface state as fullscreen">
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Set the surface as fullscreen.
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After this request, the compositor should send a configure event
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informing the output size.
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This request informs the compositor that the next attached buffer
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committed will be in a fullscreen state. The buffer size should be the
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same size as the size informed in the configure event, if the client
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doesn't want to leave any empty area.
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In other words: the next attached buffer after set_maximized is the new
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maximized buffer. And the surface will be positioned at the maximized
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position on commit.
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A simple way to synchronize and wait for the correct configure event is
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to use a wl_display.sync request right after the set_fullscreen
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request. When the sync callback returns, the last configure event
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received just before it will be the correct one, and should contain the
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right size for the surface to maximize.
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Setting one state won't unset another state. Use
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xdg_surface.unset_fullscreen for unsetting it.
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</description>
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</request>
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<request name="unset_fullscreen">
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<description summary="unset the surface state as fullscreen">
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Unset the surface fullscreen state.
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Same negotiation as set_fullscreen must be used.
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</description>
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</request>
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<event name="request_set_maximized">
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<description summary="server requests that the client set maximized">
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Event sent from the compositor to the client requesting that the client
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goes to a maximized state. It's the client job to call set_maximized
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and really trigger the maximized state.
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</description>
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</event>
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<event name="request_unset_maximized">
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<description summary="server requests that the client unset maximized">
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Event sent from the compositor to the client requesting that the client
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leaves the maximized state. It's the client job to call unset_maximized
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and really leave the maximized state.
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</description>
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</event>
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<request name="set_maximized">
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<description summary="set the surface state as maximized">
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Set the surface as maximized.
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After this request, the compositor will send a configure event
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informing the output size minus panel and other MW decorations.
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This request informs the compositor that the next attached buffer
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committed will be in a maximized state. The buffer size should be the
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same size as the size informed in the configure event, if the client
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doesn't want to leave any empty area.
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In other words: the next attached buffer after set_maximized is the new
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maximized buffer. And the surface will be positioned at the maximized
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position on commit.
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A simple way to synchronize and wait for the correct configure event is
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to use a wl_display.sync request right after the set_maximized request.
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When the sync callback returns, the last configure event received just
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before it will be the correct one, and should contain the right size
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for the surface to maximize.
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Setting one state won't unset another state. Use
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xdg_surface.unset_maximized for unsetting it.
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</description>
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</request>
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<request name="unset_maximized">
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<description summary="unset the surface state as maximized">
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Unset the surface maximized state.
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Same negotiation as set_maximized must be used.
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</description>
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</request>
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<request name="set_minimized">
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<description summary="set the surface state as minimized">
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Set the surface minimized state.
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Setting one state won't unset another state.
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</description>
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</request>
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<event name="focused_set">
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<description summary="surface was focused">
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The focused_set event is sent when this surface has been
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activated. Window decorations should be updated accordingly.
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</description>
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</event>
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<event name="focused_unset">
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<description summary="surface was unfocused">
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The focused_unset event is sent when this surface has been
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deactivated, because another surface has been activated. Window
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decorations should be updated accordingly.
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</description>
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</event>
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<event name="delete">
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<description summary="surface wants to be closed">
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The delete event is sent by the compositor when the user
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wants the surface to be closed. This should be equivalent to
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the user clicking the close button in client-side decorations,
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if your application has any...
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This is only a request that the user intends to close your
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window. The client may choose to ignore this request, or show
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a dialog to ask the user to save their data...
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</description>
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</event>
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</interface>
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<interface name="xdg_popup" version="1">
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<description summary="desktop-style metadata interface">
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An interface that may be implemented by a wl_surface, for
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implementations that provide a desktop-style popups/menus. A popup
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surface is a transient surface with an added pointer grab.
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An existing implicit grab will be changed to owner-events mode,
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and the popup grab will continue after the implicit grab ends
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(i.e. releasing the mouse button does not cause the popup to be
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unmapped).
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The popup grab continues until the window is destroyed or a mouse
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button is pressed in any other clients window. A click in any of
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the clients surfaces is reported as normal, however, clicks in
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other clients surfaces will be discarded and trigger the callback.
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The x and y arguments specify the locations of the upper left
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corner of the surface relative to the upper left corner of the
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parent surface, in surface local coordinates.
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xdg_popup surfaces are always transient for another surface.
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</description>
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<request name="destroy" type="destructor">
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<description summary="remove xdg_surface interface">
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The xdg_surface interface is removed from the wl_surface object
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that was turned into a xdg_surface with
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xdg_shell.get_xdg_surface request. The xdg_surface properties,
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like maximized and fullscreen, are lost. The wl_surface loses
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its role as a xdg_surface. The wl_surface is unmapped.
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</description>
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</request>
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<event name="popup_done">
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<description summary="popup interaction is done">
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The popup_done event is sent out when a popup grab is broken,
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that is, when the users clicks a surface that doesn't belong
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to the client owning the popup surface.
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</description>
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<arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
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</event>
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</interface>
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</protocol>
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