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1
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define([
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2
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"dojo/_base/declare"
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3
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], function(declare){
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4
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return declare('steam2.StatsChartLoader', null, {
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5
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6
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loaderURL: '/stabile/static/img/loader.gif',
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7
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8
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constructor: function(chart){
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9
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var node = this.node = chart.node;
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10
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11
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this.loader = dojo.create('div', {
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12
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className: 'loading',
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13
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innerHTML:dojo.replace('<img alt="..." src="{loader}" style="vertical-align:middle;position:relative;left:{left}px;top:{top}px" height="20px" />', {
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14
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left: node.clientWidth / 2,
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15
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top: node.clientHeight / 2,
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16
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loader: this.loaderURL}),
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17
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style: dojo.replace('display:none;height:{height};width:{width}', {
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18
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height: node.style.height,
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19
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width: node.style.width })
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20
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}, node, 'before');
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21
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22
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this.noDataNotifier = dojo.create('div', {
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23
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innerHTML: '<div style="padding-top:' + node.clientHeight / 2 + 'px;text-align:center;">no data!</div>',
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24
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style: dojo.replace('display:none;height:{height};width:{width}', {
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25
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height: node.style.height,
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26
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width: node.style.width })
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27
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}, node, 'before');
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28
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29
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30
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dojo.connect(chart, 'loading', this, this.show);
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31
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dojo.connect(chart, 'render' , this, this.hide);
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32
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dojo.connect(chart, 'noData', this, this.noData);
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33
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},
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34
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35
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show: function(){
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36
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this.node.style.display = 'none';
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37
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this.noDataNotifier.style.display = 'none';
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38
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this.loader.style.display = '';
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39
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},
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40
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41
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hide: function(){
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42
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this.loader.style.display = 'none';
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43
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this.noDataNotifier.style.display = 'none';
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44
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this.node.style.display = '';
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45
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},
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46
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47
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noData: function(){
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48
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this.loader.style.display = 'none';
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49
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this.noDataNotifier.style.display = '';
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50
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}
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51
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52
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});
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53
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54
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});
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55
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