зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.8 KiB
HTML
115 строки
3.8 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8">
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<title>meta viewport test</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<meta name="viewport" content="width=320">
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<script src="viewport_helpers.js"></script>
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</head>
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<body>
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<p>Dynamic viewport updates</p>
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<script type="application/javascript">
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"use strict";
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SimpleTest.waitForExplicitFinish();
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let tests = [];
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tests.push(function test1() {
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SpecialPowers.pushPrefEnv(scaleRatio(1.0),
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function() {
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updateViewport("width=device-width");
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let info = getViewportInfo(800, 480);
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is(info.defaultZoom, 1, "initial zoom is 100%");
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is(info.width, 800, "width is the same as the displayWidth");
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is(info.height, 480, "height is the same as the displayHeight");
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is(info.autoSize, true, "width=device-width enables autoSize");
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is(info.allowZoom, true, "zooming is enabled by default");
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info = getViewportInfo(900, 600);
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is(info.width, 900, "changing the displayWidth changes the width");
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is(info.height, 600, "changing the displayHeight changes the height");
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nextTest();
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});
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});
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tests.push(function test2() {
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SpecialPowers.pushPrefEnv(scaleRatio(1.0),
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function() {
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updateViewport("width=320");
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let info = getViewportInfo(800, 80);
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is(info.defaultZoom, 2.5, "initial zoom fits the displayWidth");
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is(info.width, 320, "width is set explicitly");
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is(info.height, 40, "height is at the absolute minimum");
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is(info.autoSize, false, "width=device-width enables autoSize");
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is(info.allowZoom, true, "zooming is enabled by default");
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info = getViewportInfo(480, 800);
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is(info.defaultZoom, 1.5, "initial zoom fits the new displayWidth");
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is(info.width, 320, "explicit width is unchanged");
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is(info.height, 533, "height changes proportional to displayHeight");
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nextTest();
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});
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});
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tests.push(function test3() {
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SpecialPowers.pushPrefEnv(scaleRatio(1.0),
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function() {
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updateViewport("user-scalable=no");
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let info = getViewportInfo(800, 480);
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is(info.allowZoom, false, "zooming is explicitly disabled");
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nextTest();
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});
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});
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tests.push(function test4() {
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SpecialPowers.pushPrefEnv(scaleRatio(1.0),
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function() {
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updateViewport("user-scalable=yes");
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let info = getViewportInfo(800, 480);
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is(info.allowZoom, true, "zooming is explicitly allowed");
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nextTest();
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});
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});
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function getViewportInfo(aDisplayWidth, aDisplayHeight) {
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let defaultZoom = {}, allowZoom = {}, minZoom = {}, maxZoom = {},
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width = {}, height = {}, autoSize = {};
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let cwu = SpecialPowers.getDOMWindowUtils(window);
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cwu.getViewportInfo(aDisplayWidth, aDisplayHeight, defaultZoom, allowZoom,
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minZoom, maxZoom, width, height, autoSize);
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return {
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defaultZoom: defaultZoom.value,
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minZoom: minZoom.value,
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maxZoom: maxZoom.value,
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width: width.value,
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height: height.value,
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autoSize: autoSize.value,
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allowZoom: allowZoom.value
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};
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}
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function updateViewport(content) {
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let meta = document.querySelector("meta[name=viewport]");
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meta.content = content;
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}
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function nextTest() {
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if (tests.length) {
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(tests.shift())();
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} else {
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SimpleTest.finish();
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}
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}
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addEventListener("load", nextTest);
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</script>
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</body>
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</html>
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