some tweaks to knikhil's change
[dygraphs.git] / tests / callback.html
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1<html>
2 <head>
3 <title>callbacks</title>
4 <!--[if IE]>
5 <script type="text/javascript" src="excanvas.js"></script>
6 <![endif]-->
7 <script type="text/javascript" src="../dygraph-combined.js"></script>
8 <script type="text/javascript" src="../dygraph-canvas.js"></script>
9 <script type="text/javascript" src="../dygraph.js"></script>
10 <script type="text/javascript" src="data.js"></script>
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11 <style type="text/css">
12 #div_g {
13 position: absolute;
14 left: 200px;
15 top: 100px;
16 }
17 #status {
18 position: absolute;
19 top: 400px;
20 }
21 </style>
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22 </head>
23 <body>
24 <p>Hover, click and zoom to test the callbacks:</p>
d16579a0 25 <div id="div_g" style="width:600px; height:300px;"></div>
b258a3da 26
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27 <input type="button" value="Clear list" onclick="javascript:document.getElementById('status').innerHTML=''" />
28 <input type="checkbox" id="highlight" checked><label for="highlight"> Show 'highlight' events</label>
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29 <input type="checkbox" id="showLabels" checked
30 onclick='g.updateOptions({showLabelsOnHighlight: this.checked});'>
8bc236f9 31 <label for="showLabels"> Show Labels on highlight</label>
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32 <div id="status" style="width:100%; height:200px;"></div>
33
34 <script type="text/javascript">
35 s = document.getElementById("status");
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36 g = null;
37 pts_info = function(e, x, pts) {
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38 var str = "(" + x + ") ";
39 for (var i = 0; i < pts.length; i++) {
40 var p = pts[i];
41 if (i) str += ", ";
3230c662 42 str += p.name + ": " + p.yval;
b258a3da 43 }
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44
45 var x = e.offsetX;
46 var y = e.offsetY;
47 var dataXY = g.toDataCoords(x, y);
48 str += ", (" + x + ", " + y + ")";
49 str += " -> (" + dataXY[0] + ", " + dataXY[1] + ")";
50
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51 return str;
52 };
53
54 g = new Dygraph(
d16579a0 55 document.getElementById("div_g"),
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56 NoisyData, {
57 rollPeriod: 7,
58 showRoller: true,
59 errorBars: true,
60
61 highlightCallback: function(e, x, pts) {
599fb4ad 62 if (document.getElementById('highlight').checked) {
3230c662 63 s.innerHTML += "<b>Highlight</b> " + pts_info(e,x,pts) + "<br/>";
599fb4ad 64 }
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65 },
66
67 clickCallback: function(e, x, pts) {
3230c662 68 s.innerHTML += "<b>Click</b> " + pts_info(e,x,pts) + "<br/>";
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69 },
70
71 zoomCallback: function(minX, maxX) {
72 s.innerHTML += "<b>Zoom</b> [" + minX + ", " + maxX + "]<br/>";
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73 },
74
75 drawCallback: function(g) {
76 s.innerHTML += "<b>Draw</b> [" + g.xAxisRange() + "]<br/>";
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77 }
78 }
79 );
80 </script>
81 </body>
82</html>