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486 lines
20 KiB
XML
486 lines
20 KiB
XML
<?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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xdg_shell allows clients to turn a wl_surface into a "real window"
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which can be dragged, resized, stacked, and moved around by the
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user. Everything about this interface is suited towards traditional
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desktop environments.
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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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The 'current' member of this enum gives the version of the
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protocol. Implementations can compare this to the version
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they implement using static_assert to ensure the protocol and
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implementation versions match.
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</description>
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<entry name="current" value="5" summary="Always the latest version"/>
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</enum>
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<enum name="error">
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<entry name="role" value="0" summary="given wl_surface has another role"/>
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</enum>
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<request name="destroy" type="destructor">
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<description summary="destroy xdg_shell">
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Destroy this xdg_shell object.
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Destroying a bound xdg_shell object while there are surfaces
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still alive with roles from this interface is illegal and will
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result in a protocol error. Make sure to destroy all surfaces
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before destroying this object.
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</description>
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</request>
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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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Negotiate the unstable version of the interface. This
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mechanism is in place to ensure client and server agree on the
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unstable versions of the protocol that they speak or exit
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cleanly if they don't agree. This request will go away once
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the xdg-shell protocol is stable.
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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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This creates an xdg_surface for the given surface and gives it the
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xdg_surface role. See the documentation of xdg_surface for more details.
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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 popup for a surface">
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This creates an xdg_popup for the given surface and gives it the
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xdg_popup role. See the documentation of xdg_popup for more details.
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This request must be used in response to some sort of user action
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like a button press, key press, or touch down event.
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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 of the user event"/>
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<arg name="serial" type="uint" summary="the serial of the user event"/>
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<arg name="x" type="int"/>
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<arg name="y" type="int"/>
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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 pong request"/>
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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="A desktop window">
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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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</description>
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<request name="destroy" type="destructor">
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<description summary="Destroy the xdg_surface">
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Unmap and destroy the window. The window will be effectively
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hidden from the user's point of view, and all state like
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maximization, fullscreen, and so on, will be lost.
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</description>
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</request>
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<request name="set_parent">
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<description summary="set the parent of this surface">
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Set the "parent" of this surface. This window should be stacked
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above a parent. The parent surface must be mapped as long as this
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surface is mapped.
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Parent windows should be set on dialogs, toolboxes, or other
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"auxilliary" surfaces, so that the parent is raised when the dialog
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is raised.
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</description>
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<arg name="parent" type="object" interface="xdg_surface" allow-null="true"/>
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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 application ID">
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Set an application identifier 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. The compositor can use this to group multiple
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applications together, or to determine how to launch a new
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application.
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See the desktop-entry specification [0] for more details on
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application identifiers and how they relate to well-known DBus
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names and .desktop files.
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[0] http://standards.freedesktop.org/desktop-entry-spec/
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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="show_window_menu">
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<description summary="show the window menu">
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Clients implementing client-side decorations might want to show
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a context menu when right-clicking on the decorations, giving the
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user a menu that they can use to maximize or minimize the window.
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This request asks the compositor to pop up such a window menu at
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the given position, relative to the local surface coordinates of
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the parent surface. There are no guarantees as to what menu items
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the window menu contains.
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This request must be used in response to some sort of user action
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like a button press, key press, or touch down event.
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</description>
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<arg name="seat" type="object" interface="wl_seat" summary="the wl_seat of the user event"/>
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<arg name="serial" type="uint" summary="the serial of the user event"/>
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<arg name="x" type="int" summary="the x position to pop up the window menu at"/>
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<arg name="y" type="int" summary="the y position to pop up the window menu at"/>
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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 an interactive, user-driven move of the surface.
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This request must be used in response to some sort of user action
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like a button press, key press, or touch down 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 of the user event"/>
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<arg name="serial" type="uint" summary="the serial of the user event"/>
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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 user-driven, interactive resize of the surface.
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This request must be used in response to some sort of user action
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like a button press, key press, or touch down 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 of the user event"/>
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<arg name="serial" type="uint" summary="the serial of the user event"/>
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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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<enum name="state">
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<description summary="types of state on the surface">
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The different state values used on the surface. This is designed for
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state values like maximized, fullscreen. It is paired with the
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configure event to ensure that both the client and the compositor
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setting the state can be synchronized.
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States set in this way are double-buffered. They will get applied on
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the next commit.
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Desktop environments may extend this enum by taking up a range of
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values and documenting the range they chose in this description.
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They are not required to document the values for the range that they
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chose. Ideally, any good extensions from a desktop environment should
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make its way into standardization into this enum.
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The current reserved ranges are:
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0x0000 - 0x0FFF: xdg-shell core values, documented below.
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0x1000 - 0x1FFF: GNOME
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</description>
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<entry name="maximized" value="1" summary="the surface is maximized">
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The surface is maximized. The window geometry specified in the configure
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event must be obeyed by the client.
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</entry>
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<entry name="fullscreen" value="2" summary="the surface is fullscreen">
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The surface is fullscreen. The window geometry specified in the configure
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event must be obeyed by the client.
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</entry>
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<entry name="resizing" value="3">
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The surface is being resized. The window geometry specified in the
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configure event is a maximum; the client cannot resize beyond it.
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Clients that have aspect ratio or cell sizing configuration can use
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a smaller size, however.
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</entry>
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<entry name="activated" value="4">
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Client window decorations should be painted as if the window is
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active. Do not assume this means that the window actually has
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keyboard or pointer focus.
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</entry>
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</enum>
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<event name="configure">
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<description summary="suggest a surface change">
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The configure event asks the client to resize its surface or to
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change its state.
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The width and height arguments specify a hint to the window
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about how its surface should be resized in window geometry
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coordinates.
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The states listed in the event specify how the width/height
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arguments should be interpreted, and possibly how it should be
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drawn.
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Clients should arrange their surface for the new size and
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states, and then send a ack_configure request with the serial
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sent in this configure event at some point before committing
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the new surface.
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If the client receives multiple configure events before it
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can respond to one, it is free to discard all but the last
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event it received.
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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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<arg name="states" type="array"/>
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<arg name="serial" type="uint"/>
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</event>
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<request name="ack_configure">
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<description summary="ack a configure event">
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When a configure event is received, if a client commits the
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surface in response to the configure event, then the client
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must make a ack_configure request before the commit request,
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passing along the serial of the configure event.
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The compositor might use this information to move a surface
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to the top left only when the client has drawn itself for
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the maximized or fullscreen state.
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If the client receives multiple configure events before it
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can respond to one, it only has to ack the last configure event.
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</description>
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<arg name="serial" type="uint" summary="the serial from the configure event"/>
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</request>
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<request name="set_window_geometry">
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<description summary="set the new window geometry">
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The window geometry of a window is its "visible bounds" from the
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user's perspective. Client-side decorations often have invisible
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portions like drop-shadows which should be ignored for the
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purposes of aligning, placing and constraining windows.
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Once the window geometry of the surface is set once, it is not
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possible to unset it, and it will remain the same until
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set_window_geometry is called again, even if a new subsurface or
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buffer is attached.
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If never set, the value is the full bounds of the surface,
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including any subsurfaces. This updates dynamically on every
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commit. This unset mode is meant for extremely simple clients.
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If responding to a configure event, the window geometry in here
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must respect the sizing negotiations specified by the states in
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the configure event.
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The width and height must be greater than zero.
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</description>
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<arg name="x" type="int"/>
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<arg name="y" type="int"/>
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<arg name="width" type="int"/>
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<arg name="height" type="int"/>
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</request>
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<request name="set_maximized" />
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<request name="unset_maximized" />
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<request name="set_fullscreen">
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<description summary="set the window as fullscreen on a monitor">
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Make the surface fullscreen.
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You can specify an output that you would prefer to be fullscreen.
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If this value is NULL, it's up to the compositor to choose which
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display will be used to map this surface.
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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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<request name="unset_fullscreen" />
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<request name="set_minimized">
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<description summary="set the window as minimized">
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Request that the compositor minimize your surface. There is no
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way to know if the surface is currently minimized, nor is there
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any way to unset minimization on this surface.
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If you are looking to throttle redrawing when minimized, please
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instead use the wl_surface.frame event for this, as this will
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also work with live previews on windows in Alt-Tab, Expose or
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similar compositor features.
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</description>
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</request>
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<event name="close">
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<description summary="surface wants to be closed">
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The close 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="short-lived, popup surfaces for menus">
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A popup surface is a short-lived, temporary surface that can be
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used to implement menus. It takes an explicit grab on the surface
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that will be dismissed when the user dismisses the popup. This can
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be done by the user clicking outside the surface, using the keyboard,
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or even locking the screen through closing the lid or a timeout.
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When the popup is dismissed, a popup_done event will be sent out,
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and at the same time the surface will be unmapped. The xdg_popup
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object is now inert and cannot be reactivated, so clients should
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destroy it. Explicitly destroying the xdg_popup object will also
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dismiss the popup and unmap the surface.
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Clients will receive events for all their surfaces during this
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grab (which is an "owner-events" grab in X11 parlance). This is
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done so that users can navigate through submenus and other
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"nested" popup windows without having to dismiss the topmost
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popup.
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Clients that want to dismiss the popup when another surface of
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their own is clicked should dismiss the popup using the destroy
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request.
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The parent surface must have either an xdg_surface or xdg_popup
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role.
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Specifying an xdg_popup for the parent means that the popups are
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nested, with this popup now being the topmost popup. Nested
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popups must be destroyed in the reverse order they were created
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in, e.g. the only popup you are allowed to destroy at all times
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is the topmost one.
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If there is an existing popup when creating a new popup, the
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parent must be the current topmost popup.
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A parent surface must be mapped before the new popup is mapped.
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When compositors choose to dismiss a popup, they will likely
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dismiss every nested popup as well.
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The x and y arguments specify where the top left of the popup
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should be placed, relative to the local surface coordinates of the
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parent surface.
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</description>
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<enum name="error">
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<description summary="xdg_popup error values">
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These errors can be emitted in response to xdg_popup requests.
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</description>
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<entry name="not_the_topmost_popup" value="0" summary="The client tried to map or destroy a non-toplevel popup"/>
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<entry name="invalid_parent" value="1" summary="The client specified an invalid parent surface"/>
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</enum>
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<request name="destroy" type="destructor">
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<description summary="remove xdg_popup interface">
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This destroys the popup. Explicitly destroying the xdg_popup
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object will also dismiss the popup, and unmap the surface.
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If this xdg_popup is not the "topmost" popup, a protocol error
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will be sent.
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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 is dismissed
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by the compositor.
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</description>
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</event>
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</interface>
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</protocol>
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