<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>meta viewport test</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> <meta name="viewport" content="width=2000, minimum-scale=0.75"> <script src="viewport_helpers.js"></script> </head> <body> <p>width=2000, minimum-scale=0.75</p> <script type="application/javascript;version=1.7"> "use strict"; SimpleTest.waitForExplicitFinish(); let tests = []; tests.push(function test1() { SpecialPowers.pushPrefEnv(scaleRatio(1.0), function() { let info = getViewportInfo(800, 480); is(info.minZoom, 0.75, "minumum scale is set explicitly"); is(info.defaultZoom, 0.75, "initial scale is bounded by the minimum scale"); is(info.maxZoom, 10, "maximum scale defaults to the absolute maximum"); is(info.width, 2000, "width is set explicitly"); is(info.height, 1200, "height is proportional to displayHeight"); is(info.autoSize, false, "autoSize is disabled by default"); is(info.allowZoom, true, "zooming is enabled by default"); info = getViewportInfo(2000, 1000); is(info.minZoom, 0.75, "minumum scale is still set explicitly"); is(info.defaultZoom, 1, "initial scale fits the width"); is(info.width, 2000, "width is set explicitly"); is(info.height, 1000, "height is proportional to the new displayHeight"); nextTest(); }); }); tests.push(function test2() { SpecialPowers.pushPrefEnv(scaleRatio(1.5), function() { let info = getViewportInfo(800, 480); is(info.minZoom, 1.125, "minumum scale is converted to device pixel scale"); is(info.defaultZoom, 1.125, "initial scale is bounded by the minimum scale"); is(info.maxZoom, 15, "maximum scale defaults to the absolute maximum"); is(info.width, 2000, "width is still set explicitly"); is(info.height, 1200, "height is still proportional to displayHeight"); nextTest(); }); }); function getViewportInfo(aDisplayWidth, aDisplayHeight) { let defaultZoom = {}, allowZoom = {}, minZoom = {}, maxZoom = {}, width = {}, height = {}, autoSize = {}; let cwu = SpecialPowers.getDOMWindowUtils(window); cwu.getViewportInfo(aDisplayWidth, aDisplayHeight, defaultZoom, allowZoom, minZoom, maxZoom, width, height, autoSize); return { defaultZoom: defaultZoom.value, minZoom: minZoom.value, maxZoom: maxZoom.value, width: width.value, height: height.value, autoSize: autoSize.value, allowZoom: allowZoom.value }; } function nextTest() { if (tests.length) (tests.shift())(); else SimpleTest.finish(); } addEventListener("load", nextTest); </script> </body> </html>