chrome/test/data/third_party/spaceport/js/sprites/renderers/css2dImg.js

   1 define([ 'util/ensureCallback', 'features', 'Modernizr', 'sprites/renderers/DomContext', 'util/create', 'sprites/container', 'util/quickPromise' ], function (ensureCallback, features, Modernizr, DomContext, create, container, quickPromise) {
   2     function RenderContext(sourceData, frameData) {
   3         if (!Modernizr.csstransforms) {
   4             return;
   5         }
   6
   7         this.loadPromise = quickPromise();
   8         DomContext.call(this, sourceData, frameData, this.loadPromise.resolve);
   9
  10         this.elements.forEach(function (frameElements) {
  11             frameElements.forEach(function (element) {
  12                 element.style[features.transformOriginStyleProperty] = '0 0';
  13             });
  14         });
  15
  16         this.transformData = frameData.map(function (objectTransforms) {
  17             return objectTransforms.map(function (t) {
  18                 return t.cssTransform2d;
  19             });
  20         });
  21
  22         this.containerElement = container();
  23     }
  24
  25     RenderContext.prototype = create(DomContext.prototype);
  26
  27     RenderContext.prototype.load = function load(callback) {
  28         callback = ensureCallback(callback);
  29
  30         if (!Modernizr.csstransforms) {
  31             callback(new Error('Not supported'));
  32             return;
  33         }
  34
  35         document.body.appendChild(this.containerElement);
  36
  37         this.loadPromise.then(function () {
  38             callback(null);
  39         });
  40     };
  41
  42     RenderContext.prototype.unload = function unload() {
  43         this.containerElement.parentNode.removeChild(this.containerElement);
  44         DomContext.prototype.unload.call(this);
  45     };
  46
  47     var transformStyleProperty = features.transformStyleProperty;
  48
  49     RenderContext.prototype.processElements = function processElements(elements, transforms) {
  50         var count = elements.length;
  51         var i;
  52         for (i = 0; i < count; ++i) {
  53             var element = elements[i];
  54             element.style[transformStyleProperty] = transforms[i];
  55             element.zIndex = i;
  56
  57             // Elements not in the DOM need to be added
  58             if (!element.parentNode) {
  59                 this.containerElement.appendChild(element);
  60             }
  61         }
  62     };
  63
  64     return function (element, frameData) {
  65         return new RenderContext(element, frameData);
  66     };
  67 });