mirror of
https://github.com/niklasvh/html2canvas.git
synced 2023-08-10 21:13:10 +03:00
118 lines
4.2 KiB
HTML
118 lines
4.2 KiB
HTML
<!DOCTYPE html>
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<html>
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<head lang="en">
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<meta charset="UTF-8">
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<title>Scrolling tests</title>
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<link rel="stylesheet" href="lib/mocha.css" />
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<script src="../../node_modules/bluebird/js/browser/bluebird.js"></script>
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<script src="../../dist/html2canvas.js"></script>
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<script src="../assets/jquery-1.6.2.js"></script>
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<script src="lib/expect.js"></script>
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<script src="lib/mocha.js"></script>
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</head>
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<body>
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<div id="mocha"></div>
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<script>mocha.setup('bdd')</script>
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<div id="scroll-render" style="height: 200px; width: 200px;">
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<div style="height: 500px; width: 400px;overflow: scroll;" id="scrollable">
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<div style="height: 500px;background: red;"></div>
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<div style="height: 650px; background: green"></div>
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</div>
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</div>
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<div style="height: 2200px"></div>
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<div style="height: 500px;background: green;" id="bottom-content"><a name="content"> </a></div>
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<script>
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describe("Scrolling", function() {
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it("with random scroll", function (done) {
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$(window).scrollTop(123);
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setTimeout(function() {
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html2canvas(document.body, {type: 'view'}).then(function () {
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expect($(window).scrollTop()).to.equal(123);
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done();
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}).catch(function (error) {
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done(error);
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});
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}, 0);
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});
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it("with url anchor", function (done) {
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window.location.hash = "#content";
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setTimeout(function() {
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var top = $(window).scrollTop();
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html2canvas(document.body, {type: 'view'}).then(function () {
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var currentTop = $(window).scrollTop();
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window.location.hash = "";
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expect(currentTop).to.be.greaterThan(1500);
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if ((currentTop - top) !== 200) { // phantomjs issue
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expect(currentTop).to.equal(top);
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}
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done();
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}).catch(function (error) {
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done(error);
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});
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}, 0);
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});
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it("with content scroll", function (done) {
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$("#scrollable").scrollTop(500);
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setTimeout(function() {
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html2canvas(document.querySelector("#scroll-render")).then(function (canvas) {
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expect($("#scrollable").scrollTop()).to.equal(500);
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expect(canvas.width).to.equal(200);
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expect(canvas.height).to.equal(200);
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validCanvasPixels(canvas);
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done();
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}).catch(function (error) {
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done(error);
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});
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}, 0);
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});
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it("with window scroll", function (done) {
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$(window).scrollTop(500);
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setTimeout(function() {
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console.log(document.querySelector("#bottom-content").getBoundingClientRect().top);
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html2canvas(document.querySelector("#bottom-content")).then(function (canvas) {
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expect($(window).scrollTop()).to.equal(500);
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validCanvasPixels(canvas);
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done();
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}).catch(function (error) {
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done(error);
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});
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}, 0);
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});
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});
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function validCanvasPixels(canvas) {
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var ctx = canvas.getContext("2d");
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var data = ctx.getImageData(0, 0, canvas.width, canvas.height).data;
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for (var i = 0, len = 200*199*4; i < len; i+=4) {
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if (data[i] !== 0 || data[i+1] !== 128 || data[i+2] !== 0 || data[i+3] !== 255) {
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console.log(i, data[i], data[i+1], data[i+2], data[i+3]);
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expect().fail("Invalid canvas data");
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}
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}
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}
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after(function() {
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if (history) {
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history.pushState("", document.title, window.location.pathname + window.location.search);
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}
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});
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mocha.checkLeaks();
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mocha.globals(['jQuery']);
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if (window.mochaPhantomJS) {
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mochaPhantomJS.run();
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}
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else {
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mocha.run();
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}
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mocha.suite.afterAll(function() {
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document.body.setAttribute('data-complete', 'true');
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});
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</script>
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</body>
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</html>
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