1 files changed, 166 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/MotionMark/tests/dom/resources/focus.js b/third_party/webkit/PerformanceTests/MotionMark/tests/dom/resources/focus.js
new file mode 100644
index 0000000000..d7722cdff4
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/MotionMark/tests/dom/resources/focus.js
@@ -0,0 +1,166 @@
+(function() {
+
+var maxVerticalOffset = 50;
+var minimumDiameter = 30;
+var centerDiameter = 90;
+var sizeVariance = 60;
+var travelDistance = 50;
+
+var opacityMultiplier = 30;
+
+var FocusElement = Utilities.createClass(
+    function(stage)
+    {
+        var size = minimumDiameter + sizeVariance;
+
+        // Size and blurring are a function of depth.
+        this._depth = Pseudo.random();
+        var distance = Utilities.lerp(this._depth, 0, sizeVariance);
+        size -= distance;
+
+        var top = Stage.random(0, stage.size.height - size) - stage.maxBlurValue * 3;
+        var left = Stage.random(0, stage.size.width - size) - stage.maxBlurValue * 3;
+
+        this.container = document.createElement('div');
+        this.container.style.width = (size + stage.maxBlurValue * 6) + "px";
+        this.container.style.height = (size + stage.maxBlurValue * 6) + "px";
+        this.container.style.top = top + "px";
+        this.container.style.left = left + "px";
+        this.container.style.zIndex = Math.round((1 - this._depth) * 10);
+
+        this.particle = Utilities.createElement("div", {}, this.container);
+        this.particle.style.width = size + "px";
+        this.particle.style.height = size + "px";
+        this.particle.style.top = (stage.maxBlurValue * 3) + "px";
+        this.particle.style.left = (stage.maxBlurValue * 3) + "px";
+
+        var depthMultiplier = Utilities.lerp(1 - this._depth, 0.8, 1);
+        this._sinMultiplier = Pseudo.random() * Stage.randomSign() * depthMultiplier * travelDistance;
+        this._cosMultiplier = Pseudo.random() * Stage.randomSign() * depthMultiplier * travelDistance;
+    }, {
+
+    hide: function()
+    {
+        this.container.style.display = "none";
+    },
+
+    show: function()
+    {
+        this.container.style.display = "block";
+    },
+
+    animate: function(stage, sinFactor, cosFactor)
+    {
+        var top = sinFactor * this._sinMultiplier;
+        var left = cosFactor * this._cosMultiplier;
+
+        Utilities.setElementPrefixedProperty(this.container, "filter", "blur(" + stage.getBlurValue(this._depth) + "px) opacity(" + stage.getOpacityValue(this._depth) + "%)");
+        this.container.style.transform = "translate3d(" + left + "%, " + top + "%, 0)";
+    }
+});
+
+var FocusStage = Utilities.createSubclass(Stage,
+    function()
+    {
+        Stage.call(this);
+    }, {
+
+    movementDuration: 2500,
+    focusDuration: 1000,
+
+    centerObjectDepth: 0.0,
+
+    minBlurValue: 1.5,
+    maxBlurValue: 15,
+    maxCenterObjectBlurValue: 5,
+
+    initialize: function(benchmark, options)
+    {
+        Stage.prototype.initialize.call(this, benchmark, options);
+
+        this._testElements = [];
+        this._focalPoint = 0.5;
+        this._offsetIndex = 0;
+
+        this._centerElement = document.getElementById("center-text");
+        this._centerElement.style.width = (centerDiameter + this.maxCenterObjectBlurValue * 6) + "px";
+        this._centerElement.style.height = (centerDiameter + this.maxCenterObjectBlurValue * 6) + "px";
+        this._centerElement.style.zIndex = Math.round(10 * this.centerObjectDepth);
+
+        var particle = document.querySelector("#center-text div");
+        particle.style.width = centerDiameter + "px";
+        particle.style.height = centerDiameter + "px";
+        particle.style.top = (this.maxCenterObjectBlurValue * 3) + "px";
+        particle.style.left = (this.maxCenterObjectBlurValue * 3) + "px";
+
+        var blur = this.getBlurValue(this.centerObjectDepth, true);
+        Utilities.setElementPrefixedProperty(this._centerElement, "filter", "blur(" + blur + "px)");
+    },
+
+    complexity: function()
+    {
+        return 1 + this._offsetIndex;
+    },
+
+    tune: function(count)
+    {
+        if (count == 0)
+            return;
+
+        if (count < 0) {
+            this._offsetIndex = Math.max(0, this._offsetIndex + count);
+            for (var i = this._offsetIndex; i < this._testElements.length; ++i)
+                this._testElements[i].hide();
+            return;
+        }
+
+        var newIndex = this._offsetIndex + count;
+        for (var i = this._testElements.length; i < newIndex; ++i) {
+            var obj = new FocusElement(this);
+            this._testElements.push(obj);
+            this.element.appendChild(obj.container);
+        }
+        for (var i = this._offsetIndex; i < newIndex; ++i)
+            this._testElements[i].show();
+        this._offsetIndex = newIndex;
+    },
+
+    animate: function()
+    {
+        var time = this._benchmark.timestamp;
+        var sinFactor = Math.sin(time / this.movementDuration);
+        var cosFactor = Math.cos(time / this.movementDuration);
+
+        var focusProgress = 0.5 + 0.5 * Math.sin(time / this.focusDuration);
+        this._focalPoint = focusProgress;
+
+        Utilities.setElementPrefixedProperty(this._centerElement, "filter", "blur(" + this.getBlurValue(this.centerObjectDepth, true) + "px)");
+
+        for (var i = 0; i < this._offsetIndex; ++i)
+            this._testElements[i].animate(this, sinFactor, cosFactor);
+    },
+
+    getBlurValue: function(depth, isCenter)
+    {
+        if (isCenter)
+            return 1 + Math.abs(depth - this._focalPoint) * (this.maxCenterObjectBlurValue - 1);
+
+        return Utilities.lerp(Math.abs(depth - this._focalPoint), this.minBlurValue, this.maxBlurValue);
+    },
+
+    getOpacityValue: function(depth)
+    {
+        return Math.max(1, opacityMultiplier * (1 - Math.abs(depth - this._focalPoint)));
+    },
+});
+
+var FocusBenchmark = Utilities.createSubclass(Benchmark,
+    function(options)
+    {
+        Benchmark.call(this, new FocusStage(), options);
+    }
+);
+
+window.benchmarkClass = FocusBenchmark;
+
+}());