1 files changed, 246 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/StyleBench/resources/main.js b/third_party/webkit/PerformanceTests/StyleBench/resources/main.js
new file mode 100644
index 0000000000..2ab877744b
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/StyleBench/resources/main.js
@@ -0,0 +1,246 @@
+window.benchmarkClient = {
+    displayUnit: 'runs/min',
+    iterationCount: 10,
+    stepCount: null,
+    suitesCount: null,
+    _measuredValuesList: [],
+    _finishedTestCount: 0,
+    _progressCompleted: null,
+    willAddTestFrame: function (frame) {
+        var main = document.querySelector('main');
+        var style = getComputedStyle(main);
+        frame.style.left = main.offsetLeft + parseInt(style.borderLeftWidth) + parseInt(style.paddingLeft) + 'px';
+        frame.style.top = main.offsetTop + parseInt(style.borderTopWidth) + parseInt(style.paddingTop) + 'px';
+    },
+    willRunTest: function (suite, test) {
+        document.getElementById('info').textContent = suite.name + ' ( ' + this._finishedTestCount + ' / ' + this.stepCount + ' )';
+    },
+    didRunTest: function () {
+        this._finishedTestCount++;
+        this._progressCompleted.style.width = (this._finishedTestCount * 100 / this.stepCount) + '%';
+    },
+    didRunSuites: function (measuredValues) {
+        this._measuredValuesList.push(measuredValues);
+    },
+    willStartFirstIteration: function () {
+        this._measuredValuesList = [];
+        this._finishedTestCount = 0;
+        this._progressCompleted = document.getElementById('progress-completed');
+        document.getElementById('logo-link').onclick = function (event) { event.preventDefault(); return false; }
+    },
+    didFinishLastIteration: function () {
+        document.getElementById('logo-link').onclick = null;
+
+        var results = this._computeResults(this._measuredValuesList, this.displayUnit);
+
+        this._updateGaugeNeedle(results.mean);
+        document.getElementById('result-number').textContent = results.formattedMean;
+        if (results.formattedDelta)
+            document.getElementById('confidence-number').textContent = '\u00b1 ' + results.formattedDelta;
+
+        this._populateDetailedResults(results.formattedValues);
+        document.getElementById('results-with-statistics').textContent = results.formattedMeanAndDelta;
+
+        if (this.displayUnit == 'ms') {
+            document.getElementById('show-summary').style.display = 'none';
+            showResultDetails();
+        } else
+            showResultsSummary();
+    },
+    _computeResults: function (measuredValuesList, displayUnit) {
+        var suitesCount = this.suitesCount;
+        function valueForUnit(measuredValues) {
+            if (displayUnit == 'ms')
+                return measuredValues.geomean;
+            return measuredValues.score;
+        }
+
+        function sigFigFromPercentDelta(percentDelta) {
+            return Math.ceil(-Math.log(percentDelta)/Math.log(10)) + 3;
+        }
+
+        function toSigFigPrecision(number, sigFig) {
+            var nonDecimalDigitCount = number < 1 ? 0 : (Math.floor(Math.log(number)/Math.log(10)) + 1);
+            return number.toPrecision(Math.max(nonDecimalDigitCount, Math.min(6, sigFig)));
+        }
+
+        var values = measuredValuesList.map(valueForUnit);
+        var sum = values.reduce(function (a, b) { return a + b; }, 0);
+        var arithmeticMean = sum / values.length;
+        var meanSigFig = 4;
+        var formattedDelta;
+        var formattedPercentDelta;
+        if (window.Statistics) {
+            var delta = Statistics.confidenceIntervalDelta(0.95, values.length, sum, Statistics.squareSum(values));
+            if (!isNaN(delta)) {
+                var percentDelta = delta * 100 / arithmeticMean;
+                meanSigFig = sigFigFromPercentDelta(percentDelta);
+                formattedDelta = toSigFigPrecision(delta, 2);
+                formattedPercentDelta = toSigFigPrecision(percentDelta, 2) + '%';
+            }
+        }
+
+        var formattedMean = toSigFigPrecision(arithmeticMean, Math.max(meanSigFig, 3));
+
+        return {
+            formattedValues: values.map(function (value) {
+                return toSigFigPrecision(value, 4) + ' ' + displayUnit;
+            }),
+            mean: arithmeticMean,
+            formattedMean: formattedMean,
+            formattedDelta: formattedDelta,
+            formattedMeanAndDelta: formattedMean + (formattedDelta ? ' \xb1 ' + formattedDelta + ' (' + formattedPercentDelta + ')' : ''),
+        };
+    },
+    _addDetailedResultsRow: function (table, iterationNumber, value) {
+        var row = document.createElement('tr');
+        var th = document.createElement('th');
+        th.textContent = 'Iteration ' + (iterationNumber + 1);
+        var td = document.createElement('td');
+        td.textContent = value;
+        row.appendChild(th);
+        row.appendChild(td);
+        table.appendChild(row);
+    },
+    _updateGaugeNeedle: function (rpm) {
+        var needleAngle = Math.max(0, Math.min(rpm, 140)) - 70;
+        var needleRotationValue = 'rotate(' + needleAngle + 'deg)';
+
+        var gaugeNeedleElement = document.querySelector('#summarized-results > .gauge .needle');
+        gaugeNeedleElement.style.setProperty('-webkit-transform', needleRotationValue);
+        gaugeNeedleElement.style.setProperty('-moz-transform', needleRotationValue);
+        gaugeNeedleElement.style.setProperty('-ms-transform', needleRotationValue);
+        gaugeNeedleElement.style.setProperty('transform', needleRotationValue);
+    },
+    _populateDetailedResults: function (formattedValues) {
+        var resultsTables = document.querySelectorAll('.results-table');
+        var i = 0;
+        resultsTables[0].innerHTML = '';
+        for (; i < Math.ceil(formattedValues.length / 2); i++)
+            this._addDetailedResultsRow(resultsTables[0], i, formattedValues[i]);
+        resultsTables[1].innerHTML = '';
+        for (; i < formattedValues.length; i++)
+            this._addDetailedResultsRow(resultsTables[1], i, formattedValues[i]);
+    },
+    prepareUI: function () {
+        window.addEventListener('popstate', function (event) {
+            if (event.state) {
+                var sectionToShow = event.state.section;
+                if (sectionToShow) {
+                    var sections = document.querySelectorAll('main > section');
+                    for (var i = 0; i < sections.length; i++) {
+                        if (sections[i].id === sectionToShow)
+                            return showSection(sectionToShow, false);
+                    }
+                }
+            }
+            return showSection('home', false);
+        }, false);
+
+        function updateScreenSize() {
+            // FIXME: Detect when the window size changes during the test.
+            var screenIsTooSmall = window.innerWidth < 850 || window.innerHeight < 650;
+            document.getElementById('screen-size').textContent = window.innerWidth + 'px by ' + window.innerHeight + 'px';
+            document.getElementById('screen-size-warning').style.display = screenIsTooSmall ? null : 'none';
+        }
+
+        window.addEventListener('resize', updateScreenSize);
+        updateScreenSize();
+    }
+}
+
+function enableOneSuite(suites, suiteToEnable)
+{
+    suiteToEnable = suiteToEnable.toLowerCase();
+    var found = false;
+    for (var i = 0; i < suites.length; i++) {
+        var currentSuite = suites[i];
+        if (currentSuite.name.toLowerCase() == suiteToEnable) {
+            currentSuite.disabled = false;
+            found = true;
+        } else
+            currentSuite.disabled = true;
+    }
+    return found;
+}
+
+function startBenchmark() {
+    if (location.search.length > 1) {
+        var parts = location.search.substring(1).split('&');
+        for (var i = 0; i < parts.length; i++) {
+            var keyValue = parts[i].split('=');
+            var key = keyValue[0];
+            var value = keyValue[1];
+            switch (key) {
+            case 'unit':
+                if (value == 'ms')
+                    benchmarkClient.displayUnit = 'ms';
+                else
+                    console.error('Invalid unit: ' + value);
+                break;
+            case 'iterationCount':
+                var parsedValue = parseInt(value);
+                if (!isNaN(parsedValue))
+                    benchmarkClient.iterationCount = parsedValue;
+                else
+                    console.error('Invalid iteration count: ' + value);
+                break;
+            case 'suite':
+                if (!enableOneSuite(Suites, value)) {
+                    alert('Suite "' + value + '" does not exist. No tests to run.');
+                    return false;
+                }
+                break;
+            }
+        }
+    }
+
+    var enabledSuites = Suites.filter(function (suite) { return !suite.disabled; });
+    var totalSubtestsCount = enabledSuites.reduce(function (testsCount, suite) { return testsCount + suite.tests.length; }, 0);
+    benchmarkClient.stepCount = benchmarkClient.iterationCount * totalSubtestsCount;
+    benchmarkClient.suitesCount = enabledSuites.length;
+    var runner = new BenchmarkRunner(Suites, benchmarkClient);
+    runner.runMultipleIterations(benchmarkClient.iterationCount);
+
+    return true;
+}
+
+function showSection(sectionIdentifier, pushState) {
+    var currentSectionElement = document.querySelector('section.selected');
+    console.assert(currentSectionElement);
+
+    var newSectionElement = document.getElementById(sectionIdentifier);
+    console.assert(newSectionElement);
+
+    currentSectionElement.classList.remove('selected');
+    newSectionElement.classList.add('selected');
+
+    if (pushState)
+        history.pushState({section: sectionIdentifier}, document.title);
+}
+
+function showHome() {
+    showSection('home', true);
+}
+
+function startTest() {
+    if (startBenchmark())
+        showSection('running');
+}
+
+function showResultsSummary() {
+    showSection('summarized-results', true);
+}
+
+function showResultDetails() {
+    showSection('detailed-results', true);
+}
+
+function showAbout() {
+    showSection('about', true);
+}
+
+window.addEventListener('DOMContentLoaded', function () {
+    if (benchmarkClient.prepareUI)
+        benchmarkClient.prepareUI();
+});