| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Firefox/dom/base/test/meta_viewport/ (Firefox Browser Version 153.0.1©) Datei vom 27.6.2026 mit Größe 2 kB |
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Quelle test_meta_viewport7.htmlSprache: HTML |
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<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>meta viewport test</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> <meta name="viewport" content="width=320"> <script src="viewport_helpers.js"></script> </head> <body> <p>Dynamic viewport updates</p> <script type="application/javascript"> "use strict"; add_task(async function test1() { await SpecialPowers.pushPrefEnv(scaleRatio(1.0)); updateViewport("width=device-width"); let info = getViewportInfo(800, 480); is(info.defaultZoom, 1, "initial zoom is 100%"); is(info.width, 800, "width is the same as the displayWidth"); is(info.height, 480, "height is the same as the displayHeight"); is(info.autoSize, true, "width=device-width enables autoSize"); is(info.allowZoom, true, "zooming is enabled by default"); info = getViewportInfo(900, 600); is(info.width, 900, "changing the displayWidth changes the width"); is(info.height, 600, "changing the displayHeight changes the height"); }); add_task(async function test2() { await SpecialPowers.pushPrefEnv(scaleRatio(1.0)); updateViewport("width=320"); let info = getViewportInfo(800, 80); is(info.defaultZoom, 2.5, "initial zoom fits the displayWidth"); is(info.width, 320, "width is set explicitly"); is(info.height, 40, "height is at the absolute minimum"); is(info.autoSize, false, "width=device-width enables autoSize"); is(info.allowZoom, true, "zooming is enabled by default"); info = getViewportInfo(480, 800); is(info.defaultZoom, 1.5, "initial zoom fits the new displayWidth"); is(info.width, 320, "explicit width is unchanged"); is(info.height, 533, "height changes proportional to displayHeight"); }); add_task(async function test3() { await SpecialPowers.pushPrefEnv(scaleRatio(1.0)); updateViewport("user-scalable=no"); let info = getViewportInfo(800, 480); is(info.allowZoom, false, "zooming is explicitly disabled"); }); add_task(async function test4() { await SpecialPowers.pushPrefEnv(scaleRatio(1.0)); updateViewport("user-scalable=yes"); let info = getViewportInfo(800, 480); is(info.allowZoom, true, "zooming is explicitly allowed"); }); function updateViewport(content) { let meta = document.querySelector("meta[name=viewport]"); meta.content = content; } </script> </body> </html>
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2026-08-25