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Code Issues Projects Releases Wiki Activity

Preserve scrolling positions of nodes on clone (#511)

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Niklas von Hertzen
2015-02-28 16:51:52 +02:00
parent 9a0d43d60b
commit 585a96a918
5 changed files with 107 additions and 124 deletions
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4
tests/mocha/form-rendering.html
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@ -108,7 +108,7 @@
CanvasRenderer.prototype.text = function(text) {
expect(text).to.equal('updated');
};
html2canvas(document.querySelector("#block4"), {renderer: CanvasRenderer, strict: true, logging: true, removeContainer: false}).then(function(canvas) {
html2canvas(document.querySelector("#block4"), {renderer: CanvasRenderer, strict: true}).then(function(canvas) {
expect(canvas.width).to.equal(200);
expect(canvas.height).to.equal(200);
done();
@ -138,7 +138,7 @@
CanvasRenderer.prototype.text = function(text) {
expect(text).to.equal('3');
};
html2canvas(document.querySelector("#block5"), {renderer: CanvasRenderer, strict: true, logging: true, removeContainer: false}).then(function(canvas) {
html2canvas(document.querySelector("#block5"), {renderer: CanvasRenderer, strict: true}).then(function(canvas) {
expect(canvas.width).to.equal(200);
expect(canvas.height).to.equal(200);
done();

35
tests/mocha/scrolling.html
View File

@ -12,6 +12,12 @@
<body>
<div id="mocha"></div>
<script>mocha.setup('bdd')</script>
<div id="scroll-render" style="height: 200px; width: 200px;">
<div style="height: 500px; width: 400px;overflow: scroll;" id="scrollable">
<div style="height: 500px;background: red;"></div>
<div style="height: 650px; background: green"></div>
</div>
</div>
<div style="height: 2200px;"></div>
<div style="height: 500px;background: green;"><a name="content">content</a></div>
<script>
@ -32,7 +38,7 @@
window.location.hash = "#content";
setTimeout(function() {
var top = $(window).scrollTop();
html2canvas(document.body, {type: 'view', removeContainer: false}).then(function () {
html2canvas(document.body, {type: 'view'}).then(function () {
var currentTop = $(window).scrollTop();
window.location.hash = "";
expect(currentTop).to.be.greaterThan(1500);
@ -45,8 +51,35 @@
});
}, 0);
});
it("with content scroll", function (done) {
$("#scrollable").scrollTop(500);
setTimeout(function() {
html2canvas(document.querySelector("#scroll-render")).then(function (canvas) {
expect($("#scrollable").scrollTop()).to.equal(500);
document.body.appendChild(canvas);
expect(canvas.width).to.equal(200);
expect(canvas.height).to.equal(200);
validCanvasPixels(canvas);
done();
}).catch(function (error) {
done(error);
});
}, 0);
});
});
function validCanvasPixels(canvas) {
var ctx = canvas.getContext("2d");
var data = ctx.getImageData(0, 0, canvas.width, canvas.height).data;
for (var i = 0, len = 200*199*4; i < len; i+=4) {
if (data[i] !== 0 || data[i+1] !== 128 || data[i+2] !== 0 || data[i+3] !== 255) {
console.log(i, data[i], data[i+1], data[i+2], data[i+3]);
expect().fail("Invalid canvas data");
}
}
}
after(function() {
if (history) {
history.pushState("", document.title, window.location.pathname + window.location.search);