tests/hairlines.html

   1 <!DOCTYPE html>
   2 <html>
   3   <head>
   4     <title>Hairlines demo</title>
   5     <script type="text/javascript" src="../dist/dygraph.js"></script>
   6
   7     <!-- Include the Javascript for the plug-in -->
   8     <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
   9     <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.1/jquery-ui.min.js"></script>
  10
  11     <link rel='stylesheet' href='http://code.jquery.com/ui/1.10.1/themes/base/jquery-ui.css' />
  12
  13     <script type="text/javascript" src="../src/extras/hairlines.js"></script>
  14     <script type="text/javascript" src="../src/extras/super-annotations.js"></script>
  15
  16     <style>
  17       #demodiv {
  18         position: absolute;
  19         left: 10px;
  20         right: 200px;
  21         height: 400px;
  22         display: inline-block;
  23       }
  24       #status {
  25         position: absolute;
  26         right: 10px;
  27         width: 180px;
  28         height: 400px;
  29         display: inline-block;
  30       }
  31       #controls {
  32         position: absolute;
  33         left: 10px;
  34         margin-top: 420px;
  35       }
  36
  37       /* This style & the next show how you can customize the appearance of the
  38          hairlines */
  39       .hairline-info {
  40         border: 1px solid black;
  41         border-top-right-radius: 5px;
  42         border-bottom-right-radius: 5px;
  43
  44         display: table;  /* shrink to fit */
  45         min-width: 100px;
  46
  47         z-index: 10;  /* should appear on top of the chart */
  48         padding: 3px;
  49         background: white;
  50         font-size: 14px;
  51         cursor: move;
  52       }
  53
  54       .dygraph-hairline {
  55         /* border-right-style: dotted !important; */
  56         cursor: move;
  57       }
  58
  59       .dygraph-hairline.selected div {
  60         left: 2px !important;
  61         width: 2px !important;
  62       }
  63       .hairline-info.selected {
  64         border: 2px solid black;
  65         padding: 2px;
  66       }
  67
  68       .annotation-info {
  69         background: white;
  70         border-width: 1px;
  71         border-style: solid;
  72         padding: 4px;
  73         display: table;  /* shrink to fit */
  74         box-shadow: 0 0 4px gray;
  75         cursor: move;
  76
  77         min-width: 120px;  /* prevents squishing at the right edge of the chart */
  78       }
  79       .annotation-info.editable {
  80         min-width: 180px;  /* prevents squishing at the right edge of the chart */
  81       }
  82
  83       .dygraph-annotation-line {
  84         box-shadow: 0 0 4px gray;
  85       }
  86     </style>
  87   </head>
  88   <body>
  89     <h2>Hairlines Demo</h2>
  90
  91     <p>Click the chart to add a hairline. Drag the hairline to move it.</p>
  92     <p>Click a point to add an editable annotation. Drag it to move it up/down.</p>
  93
  94     <!--
  95     The "info box" for each hairline is based on this template.
  96     Customize it as you wish. The .hairline-legend element will be populated
  97     with data about the current points and the .hairline-kill-button element
  98     will remove the hairline when clicked. Everything else will be untouched.
  99     -->
 100     <div id="hairline-template" class="hairline-info" style="display:none">
 101       <button class='hairline-kill-button'>Kill</button>
 102       <div class='hairline-legend'></div>
 103     </div>
 104     <div id="annotation-template" class="annotation-info" style="display:none">
 105       <div>{{text}}</div>
 106       <div>{{x}}, {{series}}: {{y}}</div>
 107     </div>
 108     <div id="annotation-editable-template" class="annotation-info" style="display:none">
 109       <button class='annotation-kill-button'>Delete</button>
 110       <button class='annotation-update'>Change</button>
 111       <button class='annotation-cancel'>Cancel</button><br/>
 112       <input dg-ann-field='text' type='text' size=30 value='{{text}}' />
 113       <div>{{x}}, {{series}}: {{y}}</div>
 114     </div>
 115     <script type="text/javascript">
 116     $(document).on('keyup', '.annotation-info input', function(e) {
 117       var $annotationDiv = $(this).parent('.annotation-info');
 118       if (e.keyCode == 13 || e.keyCode == 10) {  // enter
 119         $annotationDiv.find('.annotation-update').click();
 120       } else if (e.keyCode == 27) {  // escape
 121         $annotationDiv.find('.annotation-cancel').click();
 122       }
 123     })
 124     .on('dblclick', '.annotation-info', function(e) {
 125       if (e.target.tagName == 'INPUT') return;
 126       $(this).find('.annotation-cancel').click();
 127     });
 128     </script>
 129
 130     <div id="demodiv"></div>
 131     <div id="status"></div>
 132
 133     <div id="controls">
 134       <input type="checkbox" id="update" checked=true><label for="update"> Update</label>
 135
 136       <button id="add-button">Add a Hairline</button>
 137       <button id="remove-button">Remove a Hairline</button>
 138       <button id="reset-button">Reset Hairlines</button>
 139       <br/>
 140       Hairline mode:
 141       <input type=radio name="hairline-mode" id="hairline-interpolated" checked=true>
 142       <label for="hairline-interpolated"> Interpolated</label>
 143       <input type=radio name="hairline-mode" id="hairline-closest">
 144       <label for="hairline-closest"> Closest</label>
 145
 146       <p>Learn more about the <a href="https://docs.google.com/document/d/1OHNE8BNNmMtFlRQ969DACIYIJ9VVJ7w3dSPRJDEeIew/edit">Hairlines/Super-annotations plugins and their APIs</a>.</p>
 147
 148     </div>
 149
 150
 151     <script type="text/javascript">
 152       var last_t = 0;
 153       var data = [];
 154       var fn = function(t) {
 155         return Math.sin(Math.PI/180 * t * 4);
 156       };
 157       for (; last_t < 200; last_t++) {
 158         data.push([last_t, fn(last_t)]);
 159       }
 160
 161       hairlines = new Dygraph.Plugins.Hairlines({
 162         divFiller: function(div, data) {
 163           // This behavior is identical to what you'd get if you didn't set
 164           // this option. It illustrates how to write a 'divFiller'.
 165           var html = Dygraph.Plugins.Legend.generateLegendHTML(
 166               data.dygraph, data.hairline.xval, data.points, 10);
 167           $('.hairline-legend', div).html(html);
 168           $(div).data({xval: data.hairline.xval});  // see .hover() below.
 169         }
 170       });
 171       annotations = new Dygraph.Plugins.SuperAnnotations({
 172         defaultAnnotationProperties: {
 173           'text': 'Annotation Description'
 174         }
 175       });
 176       g = new Dygraph(
 177               document.getElementById("demodiv"),
 178               data,
 179               {
 180                 labelsDiv: document.getElementById('status'),
 181                 labelsSeparateLines: true,
 182                 legend: 'always',
 183                 labels: [ 'Time', 'Value' ],
 184
 185                 axes: {
 186                   x: {
 187                     valueFormatter: function(val) {
 188                       return val.toFixed(2);
 189                     }
 190                   },
 191                   y: {
 192                     pixelsPerLabel: 50
 193                   }
 194                 },
 195
 196                 // Set the plug-ins in the options.
 197                 plugins : [
 198                   annotations,
 199                   hairlines
 200                 ]
 201               }
 202           );
 203
 204       var shouldUpdate = true;
 205       var update = function() {
 206         if (!shouldUpdate) return;
 207         data.push([last_t, fn(last_t)]);
 208         last_t++;
 209         data.splice(0, 1);
 210         g.updateOptions({file: data});
 211       };
 212       window.setInterval(update, 1000);
 213
 214       // Control handlers
 215       $('#update').on('change', function() {
 216         shouldUpdate = $(this).is(':checked');
 217       });
 218
 219       $('#add-button').on('click', function(e) {
 220         var h = hairlines.get();
 221         h.push({xval: 137});
 222         hairlines.set(h);
 223       });
 224       $('#remove-button').on('click', function(e) {
 225         var h = hairlines.get();
 226         if (h.length > 0) {
 227           var idx = Math.floor(h.length / 2);
 228           h.splice(idx, 1);
 229         }
 230         hairlines.set(h);
 231       });
 232       $('#reset-button').on('click', function(e) {
 233         setDefaultState();
 234       });
 235       function setHairlineModeRadio() {
 236         var hs = hairlines.get();
 237         if (hs.length) {
 238           var interpolated = hs[0].interpolated;
 239           $('#hairline-interpolated').prop('checked', interpolated);
 240           $('#hairline-closest').prop('checked', !interpolated);
 241         }
 242       }
 243       $('[name=hairline-mode]').change(function() {
 244         var interpolated = $('#hairline-interpolated').is(':checked');
 245         var hs = hairlines.get();
 246         for (var i = 0; i < hs.length; i++) {
 247           hs[i].interpolated = interpolated;
 248         }
 249         hairlines.set(hs);
 250       });
 251
 252       // Persistence
 253       function loadFromStorage() {
 254         hairlines.set(JSON.parse(localStorage.getItem('hairlines')));
 255         annotations.set(JSON.parse(localStorage.getItem('annotations')));
 256         setHairlineModeRadio();
 257       }
 258       $(hairlines).on('hairlinesChanged', function(e) {
 259         localStorage.setItem('hairlines', JSON.stringify(hairlines.get()));
 260         setHairlineModeRadio();
 261       });
 262       $(annotations).on('annotationsChanged', function(e) {
 263         localStorage.setItem('annotations', JSON.stringify(annotations.get()));
 264       });
 265       function setDefaultState() {
 266         // triggers 'hairlinesChanged' and 'annotationsChanged' events, above.
 267         hairlines.set([{xval: 55}]);
 268         annotations.set([{
 269           xval: 67,
 270           series: 'Value',
 271           text: 'Bottom'
 272         },
 273         {
 274           xval: 137,
 275           series: 'Value',
 276           text: 'Fast Change'
 277         }]);
 278       }
 279
 280       if (!localStorage.getItem('hairlines') ||
 281           !localStorage.getItem('annotations')) {
 282         setDefaultState();
 283       } else {
 284         loadFromStorage();
 285       }
 286
 287       // Set focus on text box when you edit an annotation.
 288       $(annotations).on('beganEditAnnotation', function(e, a) {
 289         $('input[type=text]', a.infoDiv).focus();
 290       });
 291
 292       // Select/Deselect hairlines on click.
 293       $(document).on('click', '.hairline-info', function() {
 294         console.log('click');
 295         var xval = $(this).data('xval');
 296         var hs = hairlines.get();
 297         for (var i = 0; i < hs.length; i++) {
 298           if (hs[i].xval == xval) {
 299             hs[i].selected = !hs[i].selected;
 300           }
 301         }
 302         hairlines.set(hs);
 303       });
 304
 305       // Demonstration of how to use various other event listeners
 306       $(hairlines).on({
 307         'hairlineMoved': function(e, data) {
 308           // console.log('hairline moved from', data.oldXVal, ' to ', data.newXVal);
 309         },
 310         'hairlineCreated': function(e, data) {
 311           console.log('hairline created at ', data.xval);
 312         },
 313         'hairlineDeleted': function(e, data) {
 314           console.log('hairline deleted at ', data.xval);
 315         }
 316       });
 317       $(annotations).on({
 318         'annotationCreated': function(e, data) {
 319           console.log('annotation created at ', data.series, data.xval);
 320         },
 321         'annotationMoved': function(e, data) {
 322           console.log('annotation moved from ', data.oldYFrac, ' to ', data.newYFrac);
 323         },
 324         'annotationDeleted': function(e, data) {
 325           console.log('annotation deleted at ', data.series, data.xval);
 326         },
 327         'annotationEdited': function(e, data) {
 328           console.log('edited annotation at ', data.series, data.xval);
 329         },
 330         'cancelEditAnnotation': function(e, data) {
 331           console.log('edit canceled on annotation at ', data.series, data.xval);
 332         }
 333       });
 334
 335       // TODO(danvk): demonstrate other annotations API methods.
 336     </script>
 337 </body>
 338 </html>