mirror of
https://github.com/thunderbrewhq/thunderbrew
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201 lines
9.0 KiB
XML
201 lines
9.0 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<protocol name="xdg_foreign_unstable_v2">
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<copyright>
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Copyright © 2015-2016 Red Hat Inc.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice (including the next
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paragraph) shall be included in all copies or substantial portions of the
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Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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</copyright>
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<description summary="Protocol for exporting xdg surface handles">
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This protocol specifies a way for making it possible to reference a surface
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of a different client. With such a reference, a client can, by using the
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interfaces provided by this protocol, manipulate the relationship between
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its own surfaces and the surface of some other client. For example, stack
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some of its own surface above the other clients surface.
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In order for a client A to get a reference of a surface of client B, client
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B must first export its surface using xdg_exporter.export_toplevel. Upon
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doing this, client B will receive a handle (a unique string) that it may
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share with client A in some way (for example D-Bus). After client A has
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received the handle from client B, it may use xdg_importer.import_toplevel
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to create a reference to the surface client B just exported. See the
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corresponding requests for details.
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A possible use case for this is out-of-process dialogs. For example when a
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sandboxed client without file system access needs the user to select a file
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on the file system, given sandbox environment support, it can export its
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surface, passing the exported surface handle to an unsandboxed process that
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can show a file browser dialog and stack it above the sandboxed client's
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surface.
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Warning! The protocol described in this file is experimental and backward
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incompatible changes may be made. Backward compatible changes may be added
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together with the corresponding interface version bump. Backward
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incompatible changes are done by bumping the version number in the protocol
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and interface names and resetting the interface version. Once the protocol
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is to be declared stable, the 'z' prefix and the version number in the
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protocol and interface names are removed and the interface version number is
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reset.
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</description>
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<interface name="zxdg_exporter_v2" version="1">
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<description summary="interface for exporting surfaces">
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A global interface used for exporting surfaces that can later be imported
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using xdg_importer.
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</description>
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<request name="destroy" type="destructor">
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<description summary="destroy the xdg_exporter object">
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Notify the compositor that the xdg_exporter object will no longer be
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used.
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</description>
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</request>
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<enum name="error">
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<description summary="error values">
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These errors can be emitted in response to invalid xdg_exporter
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requests.
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</description>
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<entry name="invalid_surface" value="0" summary="surface is not an xdg_toplevel"/>
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</enum>
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<request name="export_toplevel">
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<description summary="export a toplevel surface">
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The export_toplevel request exports the passed surface so that it can later be
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imported via xdg_importer. When called, a new xdg_exported object will
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be created and xdg_exported.handle will be sent immediately. See the
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corresponding interface and event for details.
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A surface may be exported multiple times, and each exported handle may
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be used to create an xdg_imported multiple times. Only xdg_toplevel
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equivalent surfaces may be exported, otherwise an invalid_surface
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protocol error is sent.
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</description>
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<arg name="id" type="new_id" interface="zxdg_exported_v2"
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summary="the new xdg_exported object"/>
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<arg name="surface" type="object" interface="wl_surface"
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summary="the surface to export"/>
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</request>
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</interface>
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<interface name="zxdg_importer_v2" version="1">
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<description summary="interface for importing surfaces">
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A global interface used for importing surfaces exported by xdg_exporter.
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With this interface, a client can create a reference to a surface of
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another client.
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</description>
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<request name="destroy" type="destructor">
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<description summary="destroy the xdg_importer object">
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Notify the compositor that the xdg_importer object will no longer be
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used.
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</description>
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</request>
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<request name="import_toplevel">
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<description summary="import a toplevel surface">
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The import_toplevel request imports a surface from any client given a handle
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retrieved by exporting said surface using xdg_exporter.export_toplevel.
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When called, a new xdg_imported object will be created. This new object
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represents the imported surface, and the importing client can
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manipulate its relationship using it. See xdg_imported for details.
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</description>
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<arg name="id" type="new_id" interface="zxdg_imported_v2"
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summary="the new xdg_imported object"/>
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<arg name="handle" type="string"
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summary="the exported surface handle"/>
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</request>
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</interface>
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<interface name="zxdg_exported_v2" version="1">
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<description summary="an exported surface handle">
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An xdg_exported object represents an exported reference to a surface. The
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exported surface may be referenced as long as the xdg_exported object not
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destroyed. Destroying the xdg_exported invalidates any relationship the
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importer may have established using xdg_imported.
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</description>
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<request name="destroy" type="destructor">
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<description summary="unexport the exported surface">
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Revoke the previously exported surface. This invalidates any
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relationship the importer may have set up using the xdg_imported created
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given the handle sent via xdg_exported.handle.
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</description>
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</request>
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<event name="handle">
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<description summary="the exported surface handle">
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The handle event contains the unique handle of this exported surface
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reference. It may be shared with any client, which then can use it to
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import the surface by calling xdg_importer.import_toplevel. A handle
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may be used to import the surface multiple times.
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</description>
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<arg name="handle" type="string" summary="the exported surface handle"/>
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</event>
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</interface>
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<interface name="zxdg_imported_v2" version="1">
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<description summary="an imported surface handle">
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An xdg_imported object represents an imported reference to surface exported
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by some client. A client can use this interface to manipulate
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relationships between its own surfaces and the imported surface.
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</description>
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<enum name="error">
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<description summary="error values">
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These errors can be emitted in response to invalid xdg_imported
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requests.
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</description>
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<entry name="invalid_surface" value="0" summary="surface is not an xdg_toplevel"/>
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</enum>
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<request name="destroy" type="destructor">
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<description summary="destroy the xdg_imported object">
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Notify the compositor that it will no longer use the xdg_imported
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object. Any relationship that may have been set up will at this point
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be invalidated.
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</description>
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</request>
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<request name="set_parent_of">
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<description summary="set as the parent of some surface">
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Set the imported surface as the parent of some surface of the client.
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The passed surface must be an xdg_toplevel equivalent, otherwise an
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invalid_surface protocol error is sent. Calling this function sets up
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a surface to surface relation with the same stacking and positioning
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semantics as xdg_toplevel.set_parent.
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</description>
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<arg name="surface" type="object" interface="wl_surface"
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summary="the child surface"/>
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</request>
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<event name="destroyed">
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<description summary="the imported surface handle has been destroyed">
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The imported surface handle has been destroyed and any relationship set
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up has been invalidated. This may happen for various reasons, for
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example if the exported surface or the exported surface handle has been
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destroyed, if the handle used for importing was invalid.
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</description>
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</event>
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</interface>
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</protocol>
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