724 lines
19 KiB
XML
724 lines
19 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"
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[
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<!ENTITY % defs SYSTEM "defs.ent"> %defs;
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]>
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<book id="xtest">
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<bookinfo>
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<title>XTEST Extension Protocol</title>
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<subtitle>X Consortium Standard</subtitle>
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<authorgroup>
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<author>
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<firstname>Kieron</firstname><surname>Drake</surname>
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<affiliation><orgname>UniSoft Ltd.</orgname></affiliation>
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</author>
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</authorgroup>
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<releaseinfo>X Version 11, Release &fullrelvers;</releaseinfo>
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<releaseinfo>Version 2.2</releaseinfo>
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<copyright><year>1992</year><holder>UniSoft Group Ltd.</holder></copyright>
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<copyright><year>1992</year><year>1994</year><holder>X Consortium</holder></copyright>
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<legalnotice>
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<para>
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Permission to use, copy, modify, and distribute this documentation for any
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purpose and without fee is hereby granted, provided that the above copyright
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notice and this permission notice appear in all copies. UniSoft makes no
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representations about the suitability for any purpose of the information in
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this document. This documentation is provided "as is" without express or
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implied warranty.
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</para>
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<para>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
|
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furnished to do so, subject to the following conditions:
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</para>
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|
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<para>
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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</para>
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<para>
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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 THE
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X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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</para>
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|
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<para>
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Except as contained in this notice, the name of the X Consortium shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the X Consortium.
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</para>
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</legalnotice>
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</bookinfo>
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<chapter id="Overview">
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<title>Overview</title>
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<para>
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This extension is a minimal set of client and server extensions
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required to completely test the X11 server with no user intervention.
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</para>
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<para>
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This extension is not intended to support general journaling and
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playback of user actions. This is a difficult area [XTrap, 89] as it attempts
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to synchronize synthetic user interactions with their effects; it is at the
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higher level of dialogue recording/playback rather than at the strictly lexical
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level. We are interested only in the latter, simpler, case. A more detailed
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discussion and justification of the extension functionality is given in
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[Drake, 91].
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</para>
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<para>
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We are aiming only to provide a minimum set of facilities that
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solve immediate testing and validation problems. The testing extension
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itself needs testing, where possible, and so should be as simple as possible.
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</para>
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<para>
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We have also tried to:
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</para>
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<itemizedlist>
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<listitem>
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<para>
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Confine the extension to an appropriate high level within the server
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to minimize portability problems. In practice this means that the extension
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should be at the DIX level or use the DIX/DDX interface, or both. This
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has effects, in particular, on the level at which "input synthesis"
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can occur.
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</para>
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</listitem>
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<listitem>
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<para>
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Minimize the changes required in the rest of the server.
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</para>
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</listitem>
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<listitem>
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<para>
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Minimize performance penalties on normal server operation.
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</para>
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</listitem>
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</itemizedlist>
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</chapter>
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<chapter id="Description">
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<title>Description</title>
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<para>
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The functions provided by this extension fall into two groups:
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</para>
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<variablelist>
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<varlistentry>
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<term>Client Operations</term>
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<listitem>
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<para>
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These routines manipulate otherwise hidden client-side behavior. The
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actual implementation will depend on the details of the actual language
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binding and what degree of request buffering, GContext caching, and so on, is
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provided.
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In the C binding, defined in "XTEST Extension Library", routines are
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provided to access the internals of two opaque data structures
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-- <function>GC</function>s
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and
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<function>Visual</function>s --
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and to discard any requests pending within the
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output buffer of a connection. The exact details can be expected to differ for
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other language bindings.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Server Requests</term>
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<listitem>
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<para>
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The first of these requests is similar to that provided in most
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extensions: it allows a client to specify a major and minor version
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number to the server and for the server to respond with major and minor
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versions of its own. The remaining two requests allow the following:
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<!-- .RS -->
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</para>
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<itemizedlist>
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<listitem>
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<para>
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Access to an otherwise "write-only" server resource: the cursor
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associated with a given window
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</para>
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</listitem>
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<listitem>
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<para>
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Perhaps most importantly, limited synthesis of input device events,
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almost as if a cooperative user had moved the pointing device
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or pressed a key or button.
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</para>
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</listitem>
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</itemizedlist>
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</listitem>
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</varlistentry>
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</variablelist>
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</chapter>
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<chapter id="Types">
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<title>Types</title>
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<para>
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The following types are used in the request and event definitions in
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subsequent sections:
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</para>
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<informaltable frame="none">
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<tgroup cols='2' align='left' colsep='0' rowsep='0'>
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<colspec colname='c1' colwidth="1.0*"/>
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<colspec colname='c2' colwidth="3.0*"/>
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<tbody>
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<row>
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<entry namest="c1" nameend="c2">
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FAKE_EVENT_TYPE
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{ <function>KeyPress</function>,
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<function>KeyRelease</function>,
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<function>MotionNotify</function>,
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<function>ButtonPress</function>,
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<function>ButtonRelease</function> }
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</entry>
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</row>
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<row>
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<entry></entry>
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</row>
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<row>
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<entry>FAKE_EVENT</entry>
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<entry>[type: FAKE_EVENT_TYPE,</entry>
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</row>
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<row>
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<entry></entry>
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<entry>detail: BYTE,</entry>
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</row>
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<row>
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<entry></entry>
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<entry>time: TIME,</entry>
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</row>
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<row>
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<entry></entry>
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<entry>root: WINDOW,</entry>
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</row>
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<row>
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<entry></entry>
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<entry>rootX, rootY: INT16]</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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<para>
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CURSOR { <function>CurrentCursor</function>, <function> None</function> }
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or a cursor as defined by the X11 Protocol.
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</para>
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</chapter>
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<chapter id="Client_Operations">
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<title>Client Operations</title>
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<para>
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These are abstract definitions of functionality. They refer to client-side
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objects such as "GC" and "VISUAL" that are quoted to
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denote their abstract nature. Concrete versions of these functions are
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defined only for particular language bindings. In some circumstances
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a particular language binding may not implement the relevant abstract
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type or may provide it as a transparent, rather than opaque, type, with
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the result that the corresponding function does not make sense or is
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not required, respectively.
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</para>
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<para>
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<olink targetdoc='xtestlib' targetptr='XTestSetGContextOfGC'><function>XTestSetGContextOfGC</function></olink>
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</para>
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<informaltable frame="none">
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<tgroup cols='1' align='left' colsep='0' rowsep='0'>
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<colspec colname='c1' colwidth="1.0*"/>
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<tbody>
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<row>
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<entry>
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<emphasis remap='I'>gc</emphasis>: "GC"
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</entry>
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</row>
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<row>
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<entry>
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<emphasis remap='I'>gid</emphasis>: GCONTEXT
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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<para>
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Sets the GCONTEXT within the "GC" gc to have
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the value specified by gid.
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</para>
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<para>
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<olink targetdoc='xtestlib' targetptr='XTestSetVisualIDOfVisual'><function>XTestSetVisualIDOfVisual</function></olink>
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</para>
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<informaltable frame="none">
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<tgroup cols='1' align='left' colsep='0' rowsep='0'>
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<colspec colname='c1' colwidth="1.0*"/>
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<tbody>
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<row>
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<entry>
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<emphasis remap='I'>visual</emphasis>: "VISUAL"
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</entry>
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</row>
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<row>
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<entry>
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<emphasis remap='I'>visualid</emphasis>: VISUALID
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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<para>
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Sets the VISUALID within the "VISUAL" visual to have
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the value specified by visualid.
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</para>
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<para>
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<olink targetdoc='xtestlib' targetptr='XTestDiscard'><function>XTestDiscard</function></olink>
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</para>
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|
<informaltable frame="none">
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|
<tgroup cols='1' align='left' colsep='0' rowsep='0'>
|
|
<colspec colname='c1' colwidth="1.0*"/>
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<tbody>
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<row>
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<entry>
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<emphasis remap='I'>dpy</emphasis>: "CONNECTION"
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</entry>
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</row>
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<row>
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<entry>
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=>
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</entry>
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</row>
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<row>
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<entry>
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status: BOOL
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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|
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<para>
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Discards any requests that are present in the request buffer associated with
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the "CONNECTION" dpy.
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The status returned is
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<function>True</function>
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if there were one or more requests
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in the buffer and
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<function>False</function>
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otherwise.
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</para>
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</chapter>
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<chapter id="Server_Requests">
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<title>Server Requests</title>
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<para>
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<function>XTestGetVersion</function>
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</para>
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|
|
<informaltable frame="none">
|
|
<tgroup cols='1' align='left' colsep='0' rowsep='0'>
|
|
<colspec colname='c1' colwidth="1.0*"/>
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<tbody>
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<row>
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<entry>
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<emphasis remap='I'>clientMajorVersion</emphasis>: CARD16
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</entry>
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</row>
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<row>
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<entry>
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<emphasis remap='I'>clientMinorVersion</emphasis>: CARD16
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</entry>
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</row>
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<row>
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<entry>
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=>
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</entry>
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</row>
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<row>
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<entry>
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serverMajorVersion: CARD16
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</entry>
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</row>
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<row>
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<entry>
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serverMinorVersion: CARD16
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</entry>
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</row>
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<row>
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<entry>
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Errors: <function>Length</function>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
|
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|
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<para>
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This request can be used to ensure that the server version of the XTEST
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extension is usable by the client. This document defines major version two
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(2), minor version one (1).
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</para>
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<para>
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<function>XTestCompareCursor</function>
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</para>
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<informaltable frame="none">
|
|
<tgroup cols='1' align='left' colsep='0' rowsep='0'>
|
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<colspec colname='c1' colwidth="1.0*"/>
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<tbody>
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<row>
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<entry>
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<emphasis remap='I'>window</emphasis>: WINDOW
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</entry>
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</row>
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<row>
|
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<entry>
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<emphasis remap='I'>cursor-id</emphasis>: CURSOR or
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<function>CurrentCursor</function>
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or
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<function>None</function>
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</entry>
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</row>
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<row>
|
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<entry>
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=>
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</entry>
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</row>
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<row>
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<entry>
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same: BOOL
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</entry>
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</row>
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<row>
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<entry>
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Errors:
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<function>Window</function>,
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<function>Length</function>,
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<function>Cursor</function>
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</entry>
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</row>
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</tbody>
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</tgroup>
|
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</informaltable>
|
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|
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<para>
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This request looks up the cursor associated with the window and
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compares it with either the null cursor if cursor-id is
|
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<function>None ,</function>
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or the current cursor (that is, the one being displayed),
|
|
or the cursor whose ID is cursor-id, and returns
|
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the result of the comparison in same.
|
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</para>
|
|
|
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<para>
|
|
<function>XTestFakeInput</function>
|
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</para>
|
|
|
|
<informaltable frame="none">
|
|
<tgroup cols='1' align='left' colsep='0' rowsep='0'>
|
|
<colspec colname='c1' colwidth="1.0*"/>
|
|
<tbody>
|
|
<row>
|
|
<entry>
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<emphasis remap='I'>events</emphasis>: LISTofFAKE_EVENT
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</entry>
|
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</row>
|
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<row>
|
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<entry>
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Errors:
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<function>Window</function>,
|
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<function>Length</function>,
|
|
<function>Alloc</function>,
|
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<function>Value</function>
|
|
</entry>
|
|
</row>
|
|
</tbody>
|
|
</tgroup>
|
|
</informaltable>
|
|
|
|
<para>
|
|
This request simulates the limited set of core protocol
|
|
events within the set FAKE_EVENT_TYPE. Only the following event fields,
|
|
defined in FAKE_EVENT, are interpreted:
|
|
</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term>
|
|
<emphasis remap='I'>type</emphasis>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
This must be one of
|
|
<function>KeyPress</function>,
|
|
<function>KeyRelease</function>,
|
|
<function>MotionNotify</function>,
|
|
<function>ButtonPress</function>,
|
|
or
|
|
<function>ButtonRelease</function>,
|
|
or else a
|
|
<function>Value</function>
|
|
error occurs.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<emphasis remap='I'>detail</emphasis>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
For key events, this field is interpreted as the physical keycode.
|
|
If the keycode is less than min-keycode or greater than max-keycode,
|
|
as returned in the connection setup, then a
|
|
<function>Value</function>
|
|
error occurs.
|
|
For button events, this field is interpreted as the physical (or core) button,
|
|
meaning it will be mapped to the corresponding logical button according to
|
|
the most recent
|
|
<function>SetPointerMapping</function>
|
|
request.
|
|
If the button number is less than one or greater than the number of physical
|
|
buttons, then a
|
|
<function>Value</function>
|
|
error occurs.
|
|
For motion events, if this field is
|
|
<function>True ,</function>
|
|
then rootX and rootY
|
|
are relative distances from the current pointer location; if this field is
|
|
<function>False,</function>
|
|
then they are absolute positions.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<emphasis remap='I'>time</emphasis>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
This is either
|
|
<function>CurrentTime</function>
|
|
(meaning no delay)
|
|
or the delay in milliseconds that the server should wait before
|
|
simulating this event. No other requests from this client will be
|
|
processed until this delay, if any, has expired and subsequent processing
|
|
of the simulated event has been completed.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<emphasis remap='I'>root</emphasis>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
In the case of motion events this field is the ID of the root window on
|
|
which the new motion is to take place. If
|
|
<function>None</function>
|
|
is specified, the root window of the screen the pointer is currently on
|
|
is used instead.
|
|
If this field is not a valid window, then a
|
|
<function>Window</function>
|
|
error occurs.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<emphasis remap='I'>rootX</emphasis> &
|
|
<emphasis remap='I'>rootY</emphasis>
|
|
</term>
|
|
<listitem>
|
|
<para>
|
|
In the case of motion events these fields indicate relative distance or
|
|
absolute pointer coordinates, according to the setting of detail.
|
|
If the specified coordinates are off-screen, the closest on-screen
|
|
coordinates will be substituted.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
|
|
<para>
|
|
When the simulated event(s) are processed, they cause event propagation,
|
|
passive grab activation, and so on, just as if the corresponding input device
|
|
action had occurred. However, motion events might not be recorded in the
|
|
motion history buffer.
|
|
</para>
|
|
|
|
<para>
|
|
For the currently supported event types, the event list must have length one,
|
|
otherwise a
|
|
<function>BadLength</function>
|
|
error occurs.
|
|
</para>
|
|
|
|
<para>
|
|
<olink targetdoc='xtestlib' targetptr='XTestGrabControl'><function>XTestGrabControl</function></olink>
|
|
</para>
|
|
|
|
<informaltable frame="none">
|
|
<tgroup cols='1' align='left' colsep='0' rowsep='0'>
|
|
<colspec colname='c1' colwidth="1.0*"/>
|
|
<tbody>
|
|
<row>
|
|
<entry>
|
|
<emphasis remap='I'>impervious</emphasis>: BOOL
|
|
</entry>
|
|
</row>
|
|
</tbody>
|
|
</tgroup>
|
|
</informaltable>
|
|
|
|
<para>
|
|
If impervious is
|
|
<function>True</function>,
|
|
then the executing client becomes impervious to server grabs;
|
|
that is, it can continue executing requests even if another client
|
|
grabs the server.
|
|
If impervious is
|
|
<function>False</function>,
|
|
then the executing client returns to the normal state of being
|
|
susceptible to server grabs.
|
|
</para>
|
|
</chapter>
|
|
|
|
<chapter id="Encoding">
|
|
<title>Encoding</title>
|
|
<para>
|
|
Please refer to the X11 Protocol Encoding document as this document uses
|
|
conventions established there.
|
|
</para>
|
|
|
|
<para>
|
|
The name of this extension is "XTEST".
|
|
</para>
|
|
|
|
<sect1 id="New_Types">
|
|
<title>New Types</title>
|
|
<literallayout class="monospaced">
|
|
FAKE_EVENT_TYPE
|
|
2 KeyPress
|
|
3 KeyRelease
|
|
4 ButtonPress
|
|
5 ButtonRelease
|
|
6 MotionNotify
|
|
</literallayout>
|
|
|
|
<para>
|
|
NOTE that the above values are defined to be the same as those for
|
|
the corresponding core protocol event types.
|
|
</para>
|
|
</sect1>
|
|
|
|
<sect1 id="Requests">
|
|
<title>Requests</title>
|
|
|
|
<literallayout class="monospaced">
|
|
<function>XTestGetVersion</function>
|
|
1 CARD8 opcode
|
|
1 0 xtest opcode
|
|
2 2 request length
|
|
1 CARD8 client major version
|
|
1 unused
|
|
2 CARD16 client minor version
|
|
=>
|
|
1 1 Reply
|
|
1 CARD8 server major version
|
|
2 CARD16 sequence number
|
|
4 0 reply length
|
|
2 CARD16 server minor version
|
|
22 unused
|
|
</literallayout>
|
|
|
|
<literallayout class="monospaced">
|
|
<function>XTestCompareCursor</function>
|
|
1 CARD8 opcode
|
|
1 1 xtest opcode
|
|
2 3 request length
|
|
4 WINDOW window
|
|
4 CURSOR cursor-id
|
|
0 None
|
|
1 CurrentCursor
|
|
=>
|
|
1 1 Reply
|
|
1 BOOL cursors are the same
|
|
2 CARD16 sequence number
|
|
4 0 reply length
|
|
24 unused
|
|
</literallayout>
|
|
|
|
<literallayout class="monospaced">
|
|
<function>XTestFakeInput</function>
|
|
1 CARD8 opcode
|
|
1 2 xtest opcode
|
|
2 1+(1*8) request length
|
|
1 FAKE_EVENT_TYPE fake device event type
|
|
1 BYTE detail: button or keycode
|
|
2 unused
|
|
4 TIME delay (milliseconds)
|
|
0 CurrentTime
|
|
4 WINDOW root window for MotionNotify
|
|
0 None
|
|
8 unused
|
|
2 INT16 x position for MotionNotify
|
|
2 INT16 y position for MotionNotify
|
|
8 unused
|
|
</literallayout>
|
|
|
|
<literallayout class="monospaced">
|
|
<olink targetdoc='xtestlib' targetptr='XTestGrabControl'><function>XTestGrabControl</function></olink>
|
|
1 CARD8 opcode
|
|
1 3 xtest opcode
|
|
2 2 request length
|
|
1 BOOL impervious
|
|
3 unused
|
|
</literallayout>
|
|
</sect1>
|
|
</chapter>
|
|
|
|
<chapter id="References">
|
|
<title>References</title>
|
|
<para>
|
|
Annicchiarico, D., et al.,
|
|
<emphasis remap='I'>XTrap: The XTrap Architecture</emphasis>.
|
|
Digital Equipment Corporation, July 1991.
|
|
</para>
|
|
|
|
<para>
|
|
Drake, K. J.,
|
|
<emphasis remap='I'>Some Proposals for a
|
|
Minimum X11 Testing Extension</emphasis>.
|
|
UniSoft Ltd., June 1991.
|
|
</para>
|
|
</chapter>
|
|
|
|
</book>
|