101 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
		
		
			
		
	
	
			101 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
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								// http://www.x.org/releases/X11R7.6/doc/damageproto/damageproto.txt
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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('DAMAGE', 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.ReportLevel	= {
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								            RawRectangles: 0,
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									    DeltaRectangles: 1,
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								            BoundingBox: 2,
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								            NonEmpty: 3
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								        };
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								        ext.QueryVersion = function(clientMaj, clientMin, callback)
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								        {
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								            X.seq_num++;
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								            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 0, 3, 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('LL');
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								                    return res;
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								                },
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								                callback
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								            ];
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								            X.pack_stream.flush();
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								        }
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								        ext.Create = function( damage, drawable, reportlevel )
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								        {
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								            X.seq_num++;
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								            X.pack_stream.pack('CCSLLCxxx', [ext.majorOpcode, 1, 4, damage, drawable, reportlevel]);
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								            X.pack_stream.flush();
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								        }
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								        ext.Destroy = function( damage )
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								        {
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								            X.seq_num++;
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								            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 2, 3, damage]);
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								            X.pack_stream.flush();
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								        }
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								        ext.Subtract = function(damage, repair, parts)
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								        {
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								            X.seq_num++;
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								            X.pack_stream.pack('CCSLLL', [ext.majorOpcode, 3, 4, damage, repair, parts]);
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								            X.pack_stream.flush();
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								        }
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								        ext.Add = function(damage, region)
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								        {
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								            X.seq_num++;
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								            X.pack_stream.pack('CCSLL', [ext.majorOpcode, 4, 3, damage, region]);
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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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								        ext.events = {
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								            DamageNotify: 0
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								        }
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								        X.eventParsers[ext.firstEvent + ext.events.DamageNotify] = function(type, seq, extra, code, raw)
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								        {
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								            var event = {};
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								            event.level = code;
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								            event.seq = seq;
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								            event.drawable = extra;
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								            var values = raw.unpack('LLssSSssSS');
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								            event.damage = values[0];
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								            event.time = values[1];
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								            event.area = {
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								              x: values[2],
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								              y: values[3],
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								              w: values[4],
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								              h: values[5]
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								            };
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								            event.geometry = {
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								              x: values[6],
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								              y: values[7],
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								              w: values[8],
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								              h: values[9]
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								            };
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								            event.name = 'DamageNotify';
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								            return event;
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								        };
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								    });
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								}
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