[PATCH] xdg_shell: Adding a new shell protocol.
Rafael Antognolli
rafael.antognolli at intel.com
Fri Nov 8 11:48:09 PST 2013
xdg_shell is a protocol aimed to substitute wl_shell in the long term,
but will not be part of the wayland core protocol. It starts as a
non-stable API, aimed to be used as a development place at first, and
once features are defined as required by several desktop shells, we can
finally make it stable.
It provides mainly two new interfaces: xdg_surface and xdg_popup.
The xdg_surface interface implements a desktop-style window, that can be
moved, resized, maximized, etc. It provides a request for creating
child/parent relationship, called xdg_surface.set_transient_for.
The xdg_popup interface implements a desktop-style popup/menu. A
xdg_popup is always transient for another surface, and also has implicit
grab.
---
protocol/xdg-surface.xml | 378 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 378 insertions(+)
create mode 100644 protocol/xdg-surface.xml
diff --git a/protocol/xdg-surface.xml b/protocol/xdg-surface.xml
new file mode 100644
index 0000000..66b8d29
--- /dev/null
+++ b/protocol/xdg-surface.xml
@@ -0,0 +1,378 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="xdg_surface">
+
+ <copyright>
+ Copyright © 2008-2013 Kristian Høgsberg
+ Copyright © 2013 Rafael Antognolli
+ Copyright © 2013 Jasper St. Pierre
+ Copyright © 2010-2013 Intel Corporation
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that copyright notice and this permission
+ notice appear in supporting documentation, and that the name of
+ the copyright holders not be used in advertising or publicity
+ pertaining to distribution of the software without specific,
+ written prior permission. The copyright holders make no
+ representations about the suitability of this software for any
+ purpose. It is provided "as is" without express or implied
+ warranty.
+
+ THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+ THIS SOFTWARE.
+ </copyright>
+
+ <interface name="xdg_shell" version="1">
+ <description summary="create desktop-style surfaces">
+ This interface is implemented by servers that provide
+ desktop-style user interfaces.
+
+ It allows clients to associate a xdg_surface with
+ a basic surface.
+ </description>
+
+ <request name="use_unstable_version">
+ <description summary="enable use of this unstable version">
+ Use this request in order to enable use of this interface.
+
+ Understand and agree that one is using an unstable interface,
+ that will likely change in the future, breaking the API.
+ </description>
+ <arg name="version" type="int"/>
+ </request>
+
+ <request name="get_xdg_surface">
+ <description summary="create a shell surface from a surface">
+ Create a shell surface for an existing surface.
+
+ Only one shell or popup surface can be associated with a given
+ surface.
+ </description>
+ <arg name="id" type="new_id" interface="xdg_surface"/>
+ <arg name="surface" type="object" interface="wl_surface"/>
+ </request>
+
+ <request name="get_xdg_popup">
+ <description summary="create a shell surface from a surface">
+ Create a popup surface for an existing surface.
+
+ Only one shell or popup surface can be associated with a given
+ surface.
+ </description>
+ <arg name="id" type="new_id" interface="xdg_popup"/>
+ <arg name="surface" type="object" interface="wl_surface"/>
+ <arg name="parent" type="object" interface="wl_surface"/>
+ <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat whose pointer is used"/>
+ <arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
+ <arg name="x" type="int"/>
+ <arg name="y" type="int"/>
+ <arg name="flags" type="uint"/>
+ </request>
+ </interface>
+
+ <interface name="xdg_surface" version="1">
+
+ <description summary="desktop-style metadata interface">
+ An interface that may be implemented by a wl_surface, for
+ implementations that provide a desktop-style user interface.
+
+ It provides requests to treat surfaces like windows, allowing to set
+ properties like maximized, fullscreen, minimized, and to move and resize
+ them, and associate metadata like title and app id.
+
+ On the server side the object is automatically destroyed when
+ the related wl_surface is destroyed. On client side,
+ xdg_surface.destroy() must be called before destroying
+ the wl_surface object.
+ </description>
+
+ <request name="destroy" type="destructor">
+ <description summary="remove xdg_surface interface">
+ The xdg_surface interface is removed from the wl_surface object
+ that was turned into a xdg_surface with
+ xdg_shell.get_xdg_surface request. The xdg_surface properties,
+ like maximized and fullscreen, are lost. The wl_surface loses
+ its role as a xdg_surface. The wl_surface is unmapped.
+ </description>
+ </request>
+
+ <request name="set_transient_for">
+ <description summary="surface is a child of another surface">
+ Setting a surface as transient of another means that it is child
+ of another surface.
+
+ Child surfaces are stacked above their parents, and will be
+ unmapped if the parent is unmapped too. They should not appear
+ on task bars and alt+tab.
+ </description>
+ <arg name="parent" type="object" interface="wl_surface"/>
+ </request>
+
+ <request name="set_title">
+ <description summary="set surface title">
+ Set a short title for the surface.
+
+ This string may be used to identify the surface in a task bar,
+ window list, or other user interface elements provided by the
+ compositor.
+
+ The string must be encoded in UTF-8.
+ </description>
+ <arg name="title" type="string"/>
+ </request>
+
+ <request name="set_app_id">
+ <description summary="set surface class">
+ Set an id for the surface.
+
+ The app id identifies the general class of applications to which
+ the surface belongs.
+
+ It should be the ID that appears in the new desktop entry
+ specification, the interface name.
+ </description>
+ <arg name="app_id" type="string"/>
+ </request>
+
+ <request name="pong">
+ <description summary="respond to a ping event">
+ A client must respond to a ping event with a pong request or
+ the client may be deemed unresponsive.
+ </description>
+ <arg name="serial" type="uint" summary="serial of the ping event"/>
+ </request>
+
+ <event name="ping">
+ <description summary="ping client">
+ Ping a client to check if it is receiving events and sending
+ requests. A client is expected to reply with a pong request.
+ </description>
+ <arg name="serial" type="uint"/>
+ </event>
+
+ <request name="move">
+ <description summary="start an interactive move">
+ Start a pointer-driven move of the surface.
+
+ This request must be used in response to a button press event.
+ The server may ignore move requests depending on the state of
+ the surface (e.g. fullscreen or maximized).
+ </description>
+ <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat whose pointer is used"/>
+ <arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
+ <art name="cursor_surface" type="object" interface="wl_surface" summary="the cursor surface used during the movement"/>
+ </request>
+
+ <enum name="resize_edge">
+ <description summary="edge values for resizing">
+ These values are used to indicate which edge of a surface
+ is being dragged in a resize operation. The server may
+ use this information to adapt its behavior, e.g. choose
+ an appropriate cursor image.
+ </description>
+ <entry name="none" value="0"/>
+ <entry name="top" value="1"/>
+ <entry name="bottom" value="2"/>
+ <entry name="left" value="4"/>
+ <entry name="top_left" value="5"/>
+ <entry name="bottom_left" value="6"/>
+ <entry name="right" value="8"/>
+ <entry name="top_right" value="9"/>
+ <entry name="bottom_right" value="10"/>
+ </enum>
+
+ <request name="resize">
+ <description summary="start an interactive resize">
+ Start a pointer-driven resizing of the surface.
+
+ This request must be used in response to a button press event.
+ The server may ignore resize requests depending on the state of
+ the surface (e.g. fullscreen or maximized).
+ </description>
+ <arg name="seat" type="object" interface="wl_seat" summary="the wl_seat whose pointer is used"/>
+ <arg name="serial" type="uint" summary="serial of the implicit grab on the pointer"/>
+ <arg name="edges" type="uint" summary="which edge or corner is being dragged"/>
+ <art name="cursor_surface" type="object" interface="wl_surface" summary="the cursor surface used during the resizing"/>
+ </request>
+
+ <event name="configure">
+ <description summary="suggest resize">
+ The configure event asks the client to resize its surface.
+
+ The size is a hint, in the sense that the client is free to
+ ignore it if it doesn't resize, pick a smaller size (to
+ satisfy aspect ratio or resize in steps of NxM pixels).
+
+ The edges parameter provides a hint about how the surface
+ was resized. The client may use this information to decide
+ how to adjust its content to the new size (e.g. a scrolling
+ area might adjust its content position to leave the viewable
+ content unmoved). Valid edge values are from resize_edge enum.
+
+ The maximized parameter informs if the surface is in a maximized
+ state. Same for the fullscreen parameter.
+
+ The client is free to dismiss all but the last configure
+ event it received.
+
+ The width and height arguments specify the size of the window
+ in surface local coordinates.
+ </description>
+
+ <arg name="edges" type="uint"/>
+ <arg name="width" type="int"/>
+ <arg name="height" type="int"/>
+ <arg name="maximized" type="uint"/>
+ <arg name="fullscreen" type="uint"/>
+ </event>
+
+ <request name="set_output">
+ <description summary="set the default output used by this surface">
+ Set the default output used by this surface when it is first mapped.
+
+ If this value is NULL (default), it's up to the compositor to choose
+ which display will be used to map this surface.
+
+ When fullscreen or maximized state are set on this surface, and it
+ wasn't mapped yet, the output set with this method will be used.
+ Otherwise, the output where the surface is currently mapped will be
+ used.
+ </description>
+ <arg name="output" type="object" interface="wl_output" allow-null="true"/>
+ </request>
+
+ <request name="set_fullscreen">
+ <description summary="set the surface state as fullscreen">
+ Set the surface as fullscreen.
+
+ The compositor must reply to this request with a configure event
+ with the dimensions for the output on which the surface will be
+ made fullscreen.
+
+ Once the fullscreen state is set, a "fullscreen_set" event will
+ be sent to the client.
+
+ Setting one state won't unset another state. Use
+ xdg_surface.fullscreen_unset for unsetting it.
+ </description>
+ </request>
+
+ <request name="unset_fullscreen">
+ <description summary="unset the surface state as fullscreen">
+ Unset the surface fullscreen state.
+ </description>
+ </request>
+
+ <request name="set_maximized">
+ <description summary="set the surface state as maximized">
+ Set the surface as maximized.
+
+ The compositor must reply to this request with a configure event
+ with the dimensions for the output on which the surface will be
+ made maximized.
+
+ Once the maximized state is set, a "maximized_set" event will be
+ sent to the client.
+
+ Setting one state won't unset another state. Use
+ xdg_surface.maximized_unset for unsetting it.
+ </description>
+ </request>
+
+ <request name="unset_maximized">
+ <description summary="unset the surface state as maximized">
+ Unset the surface maximized state.
+ </description>
+ </request>
+
+ <request name="set_minimized">
+ <description summary="set the surface state as minimized">
+ Set the surface minimized state.
+
+ Setting one state won't unset another state. Use
+ xdg_surface.minimized_unset for unsetting it.
+ </description>
+ </request>
+
+ <event name="focused_set">
+ <description summary="surface was focused">
+ The focused_set event is sent when this surface has been
+ activated. Window decorations should be updated accordingly.
+ </description>
+ </event>
+
+ <event name="focused_unset">
+ <description summary="surface was unfocused">
+ The focused_unset event is sent when this surface has been
+ deactivated, because another surface has been activated. Window
+ decorations should be updated accordingly.
+ </description>
+ </event>
+ </interface>
+
+ <interface name="xdg_popup" version="1">
+ <description summary="desktop-style metadata interface">
+ An interface that may be implemented by a wl_surface, for
+ implementations that provide a desktop-style popups/menus. A popup
+ surface is a transient surface with an added pointer grab.
+
+ An existing implicit grab will be changed to owner-events mode,
+ and the popup grab will continue after the implicit grab ends
+ (i.e. releasing the mouse button does not cause the popup to be
+ unmapped).
+
+ The popup grab continues until the window is destroyed or a mouse
+ button is pressed in any other clients window. A click in any of
+ the clients surfaces is reported as normal, however, clicks in
+ other clients surfaces will be discarded and trigger the callback.
+
+ The x and y arguments specify the locations of the upper left
+ corner of the surface relative to the upper left corner of the
+ parent surface, in surface local coordinates.
+
+ xdg_popup surfaces are always transient for another surface.
+ </description>
+
+ <request name="destroy" type="destructor">
+ <description summary="remove xdg_surface interface">
+ The xdg_surface interface is removed from the wl_surface object
+ that was turned into a xdg_surface with
+ xdg_shell.get_xdg_surface request. The xdg_surface properties,
+ like maximized and fullscreen, are lost. The wl_surface loses
+ its role as a xdg_surface. The wl_surface is unmapped.
+ </description>
+ </request>
+
+ <request name="pong">
+ <description summary="respond to a ping event">
+ A client must respond to a ping event with a pong request or
+ the client may be deemed unresponsive.
+ </description>
+ <arg name="serial" type="uint" summary="serial of the ping event"/>
+ </request>
+
+ <event name="ping">
+ <description summary="ping client">
+ Ping a client to check if it is receiving events and sending
+ requests. A client is expected to reply with a pong request.
+ </description>
+ <arg name="serial" type="uint"/>
+ </event>
+
+ <event name="popup_done">
+ <description summary="popup interaction is done">
+ The popup_done event is sent out when a popup grab is broken,
+ that is, when the users clicks a surface that doesn't belong
+ to the client owning the popup surface.
+ </description>
+ </event>
+
+ </interface>
+</protocol>
--
1.8.3.1
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