71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
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// http://www.x.org/releases/X11R7.6/doc/xcmiscproto/xc-misc.pdf
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var x11 = Require('x11/core/x11');
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// TODO: move to templates
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exports.requireExt = function(display, callback)
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{
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var X = display.client;
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X.QueryExtension('XC-MISC', function(err, ext) {
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if (!ext.present)
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return callback(new Error('extension not available'));
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ext.QueryVersion = function(clientMaj, clientMin, cb)
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{
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X.seq_num++;
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X.pack_stream.pack('CCSSS', [ext.majorOpcode, 0, 2, clientMaj, clientMin]);
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X.replies[X.seq_num] = [
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function(buf, opt) {
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var res = buf.unpack('SS');
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return res;
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},
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cb
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];
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X.pack_stream.flush();
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}
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ext.GetXIDRange = function(cb)
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{
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X.seq_num++;
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X.pack_stream.pack('CCS', [ext.majorOpcode, 1, 1]);
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X.replies[X.seq_num] = [
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function(buf, opt) {
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var res = buf.unpack('LL');
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return {
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startId: res[0],
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count: res[1]
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};
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},
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cb
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];
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X.pack_stream.flush();
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}
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ext.GetXIDList = function( count, cb )
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{
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X.seq_num++;
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X.pack_stream.pack('CCSL', [ext.majorOpcode, 2, 2, count]);
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X.replies[X.seq_num] = [
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function(buf, opt) {
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var numIds = buf.unpack('L')[0];
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var res = [];
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for (var i = 0; i < numIds; ++i)
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res.push(buf.unpack('L', 24+i*4));
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return res;
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},
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cb
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];
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X.pack_stream.flush();
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}
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ext.QueryVersion(1, 1, function(err, vers) {
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if (err)
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return callback(err);
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ext.major = vers[0];
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ext.minor = vers[1];
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callback(null, ext);
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});
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});
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}
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