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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/tests/mochitest/general/test_contentViewer_overrideDPPX.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+++ b/dom/tests/mochitest/general/test_contentViewer_overrideDPPX.html
@@ -0,0 +1,358 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>nsIContentViewer::overrideDPPX test</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
+</head>
+
+<body>
+
+<iframe></iframe>
+
+<script type="application/javascript;version=1.8">
+
+SimpleTest.waitForExplicitFinish();
+
+const frameWindow = document.querySelector("iframe").contentWindow;
+
+const originalDPR = window.devicePixelRatio;
+const originalZoom = SpecialPowers.getFullZoom(window);
+const dppx = originalDPR * 1.5;
+const zoom = originalZoom * 0.5;
+
+const setOverrideDPPX = (value) => {
+ if (value > 0) {
+ info(`override window's dppx to ${value}`);
+ } else {
+ info(`restore window's dppx to default value`);
+ }
+
+ SpecialPowers.setOverrideDPPX(window, value);
+}
+
+const setFullZoom = (value) => {
+ info(`set window's fullZoom to ${value}`);
+ SpecialPowers.setFullZoom(window, value);
+}
+
+const createFontStyleForDPPX = (doc, value, size) => {
+ info(`adding a stylesheet that set font size to ${size}px for ${value}dppx`);
+
+ let style = doc.createElement("style");
+
+ style.setAttribute("media", `(resolution: ${value}dppx)`);
+
+ doc.head.appendChild(style);
+
+ style.sheet.insertRule(`body {font-size: ${size}px}`, 0);
+
+ return style;
+}
+
+const getBodyFontSize = (w) => w.getComputedStyle(w.document.body).fontSize;
+
+const assertValuesAreInitial = () => {
+ is(window.devicePixelRatio, originalDPR,
+ "devicePixelRatio has the original value.");
+ is(SpecialPowers.getFullZoom(window), originalZoom,
+ "fullZoom has the original value.");
+
+ is(frameWindow.devicePixelRatio, originalDPR,
+ "devicePixelRatio has the original value.");
+ is(SpecialPowers.getFullZoom(frameWindow), originalZoom,
+ "fullZoom has the original value.");
+}
+
+const gTests = {
+ "test overrideDPPX with devicePixelRatio": (done) => {
+ assertValuesAreInitial();
+
+ setOverrideDPPX(dppx);
+
+ is(window.devicePixelRatio, dppx,
+ "devicePixelRatio overridden.");
+ is(frameWindow.devicePixelRatio, dppx,
+ "frame's devicePixelRatio overridden.");
+
+ setOverrideDPPX(0);
+
+ is(window.devicePixelRatio, originalDPR,
+ "devicePixelRatio back to default.");
+ is(frameWindow.devicePixelRatio, originalDPR,
+ "frame's devicePixelRatio back to default.");
+
+ done();
+ },
+ "test overrideDPPX with devicePixelRatio and fullZoom": (done) => {
+ assertValuesAreInitial();
+
+ setFullZoom(zoom);
+ setOverrideDPPX(dppx);
+
+ is(window.devicePixelRatio, dppx,
+ "devicePixelRatio overridden; fullZoom ignored");
+ is(frameWindow.devicePixelRatio, dppx,
+ "frame's devicePixelRatio overridden; fullZoom ignored");
+
+ setOverrideDPPX(0);
+
+ is(window.devicePixelRatio, originalDPR * zoom,
+ "devicePixelRatio now is affected by fullZoom");
+ is(frameWindow.devicePixelRatio, originalDPR * zoom,
+ "frame's devicePixelRatio now is affected by fullZoom");
+ isnot(dppx, originalDPR * zoom,
+ "test is no longer testing what it should be");
+
+ setFullZoom(originalZoom);
+
+ is(window.devicePixelRatio, originalDPR,
+ "devicePixelRatio back to default.");
+ is(frameWindow.devicePixelRatio, originalDPR,
+ "frame's devicePixelRatio back to default.");
+
+ done();
+
+ },
+ "test overrideDPPX with media queries": (done) => {
+ assertValuesAreInitial();
+
+ let frameDoc = frameWindow.document;
+
+ let originalFontSize = getBodyFontSize(window);
+ let frameOriginalFontSize = getBodyFontSize(frameWindow);
+
+ let style = createFontStyleForDPPX(document, dppx, "32");
+ let frameStyle = createFontStyleForDPPX(frameDoc, dppx, "32");
+
+ let currentFontSize = getBodyFontSize(window);
+ let frameCurrentFontSize = getBodyFontSize(frameWindow);
+
+ is(currentFontSize, originalFontSize,
+ "media queries are not applied yet");
+ is(frameCurrentFontSize, frameOriginalFontSize,
+ "frame's media queries are not applied yet");
+
+ setOverrideDPPX(dppx);
+
+ currentFontSize = getBodyFontSize(window);
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+
+ isnot(currentFontSize, originalFontSize,
+ "media queries are applied.");
+ isnot(frameCurrentFontSize, frameOriginalFontSize,
+ "frame's media queries are applied.");
+
+ is(currentFontSize, "32px",
+ "font size has the expected value.");
+ is(frameCurrentFontSize, "32px",
+ "frame's font size has the expected value.");
+
+ setOverrideDPPX(0);
+
+ currentFontSize = getBodyFontSize(window);
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+
+ is(currentFontSize, originalFontSize,
+ "media queries are not applied anymore.");
+ is(frameCurrentFontSize, frameOriginalFontSize,
+ "media queries are not applied anymore.");
+
+ style.remove();
+ frameStyle.remove();
+
+ done();
+ },
+ "test overrideDPPX with media queries and fullZoom": (done) => {
+ assertValuesAreInitial();
+
+ let frameDoc = frameWindow.document;
+
+ let styles = [
+ createFontStyleForDPPX(document, originalDPR, "23"),
+ createFontStyleForDPPX(document, dppx, "32"),
+ createFontStyleForDPPX(document, originalDPR * zoom, "48"),
+ createFontStyleForDPPX(frameDoc, originalDPR, "23"),
+ createFontStyleForDPPX(frameDoc, dppx, "32"),
+ createFontStyleForDPPX(frameDoc, originalDPR * zoom, "48")
+ ];
+
+ let currentFontSize = getBodyFontSize(window);
+ let frameCurrentFontSize = getBodyFontSize(frameWindow);
+ is(currentFontSize, "23px",
+ "media queries are not applied yet");
+ is(frameCurrentFontSize, "23px",
+ "frame's media queries are not applied yet");
+
+ setFullZoom(zoom);
+ setOverrideDPPX(dppx);
+
+ currentFontSize = getBodyFontSize(window);
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+ is(currentFontSize, "32px",
+ "media queries are applied for overridden DDPX; fullZoom ignored.");
+ is(frameCurrentFontSize, "32px",
+ "frame's media queries are applied for overridden DDPX; fullZoom ignored.");
+
+ setOverrideDPPX(0);
+
+ currentFontSize = getBodyFontSize(window);
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+ is(currentFontSize, "48px",
+ "media queries are applied for fullZoom.");
+ is(frameCurrentFontSize, "48px",
+ "frame's media queries are applied for fullZoom.");
+
+ setFullZoom(originalZoom);
+
+ currentFontSize = getBodyFontSize(window);
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+ is(currentFontSize, "23px",
+ "media queries are not applied anymore.");
+ is(frameCurrentFontSize, "23px",
+ "frame's media queries are not applied anymore.");
+
+ styles.forEach(style => style.remove());
+
+ done();
+ },
+ "test OverrideDPPX with MediaQueryList": (done) => {
+ assertValuesAreInitial();
+
+ let promises = [
+ new Promise(resolve => {
+ let mql = window.matchMedia(`(resolution: ${dppx}dppx)`);
+
+ mql.addListener(function listener() {
+ ok("MediaQueryList's listener invoked.")
+ mql.removeListener(listener);
+ resolve();
+ });
+ }),
+ new Promise(resolve => {
+ let mql = frameWindow.matchMedia(`(resolution: ${dppx}dppx)`);
+
+ mql.addListener(function listener() {
+ ok("frame's MediaQueryList's listener invoked.")
+ mql.removeListener(listener);
+ resolve();
+ });
+ })
+ ];
+
+ Promise.all(promises)
+ .then(() => setOverrideDPPX(0))
+ .then(done, e => {throw e});
+
+ setOverrideDPPX(dppx);
+ },
+ "test OverrideDPPX with MediaQueryList and fullZoom": (done) => {
+ assertValuesAreInitial();
+
+ let overridden = false;
+
+ let promises = [
+ new Promise(resolve => {
+ let mql = window.matchMedia(`(resolution: ${dppx}dppx)`);
+
+ mql.addListener(function listener() {
+ ok("MediaQueryList's listener for dppx invoked.");
+ mql.removeListener(listener);
+ overridden = true;
+ resolve();
+ });
+ }),
+ new Promise(resolve => {
+ let mql = window.matchMedia(`(resolution: ${originalDPR * zoom}dppx)`);
+
+ mql.addListener(function listener() {
+ ok(overridden,
+ "MediaQueryList's listener for zoom invoked in the right order");
+
+ mql.removeListener(listener);
+ resolve();
+ });
+ })
+ ];
+
+ promises[0]
+ .then(() => setOverrideDPPX(0))
+ .then(promises[1])
+ .then(() => setFullZoom(originalZoom))
+ .then(done, e => {throw e});
+
+ setOverrideDPPX(dppx);
+ setFullZoom(zoom);
+ },
+ "test OverrideDPPX is kept on document navigation": (done) => {
+ assertValuesAreInitial();
+
+ let frameOriginalFontSize = getBodyFontSize(frameWindow);
+ let frameStyle = createFontStyleForDPPX(frameWindow.document, dppx, "32");
+ let frameCurrentFontSize = getBodyFontSize(frameWindow);
+
+ is(frameCurrentFontSize, frameOriginalFontSize,
+ "frame's media queries are not applied yet");
+
+ setOverrideDPPX(dppx);
+
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+
+ is(frameWindow.devicePixelRatio, dppx,
+ "frame's devicePixelRatio overridden.");
+ isnot(frameCurrentFontSize, frameOriginalFontSize,
+ "frame's media queries are applied.");
+ is(frameCurrentFontSize, "32px",
+ "frame's font size has the expected value.");
+
+ frameWindow.frameElement.addEventListener("load", function listener() {
+ this.removeEventListener("load", listener);
+
+ frameStyle = createFontStyleForDPPX(frameWindow.document, dppx, "32");
+
+ frameCurrentFontSize = getBodyFontSize(frameWindow);
+
+ is(frameWindow.devicePixelRatio, dppx,
+ "frame's devicePixelRatio is still overridden.");
+ isnot(frameCurrentFontSize, frameOriginalFontSize,
+ "frame's media queries are still applied.");
+ is(frameCurrentFontSize, "32px",
+ "frame's font size has still the expected value.");
+
+ frameStyle.remove();
+
+ setOverrideDPPX(0);
+
+ done();
+ });
+
+ frameWindow.location.reload(true);
+ }
+};
+
+function* runner(tests) {
+ for (let name of Object.keys(tests)) {
+ info(name);
+ tests[name](next);
+ yield undefined;
+ }
+};
+
+const gTestRunner = runner(gTests);
+
+function next() {
+ SimpleTest.executeSoon(function() {
+ if (gTestRunner.next().done) {
+ SimpleTest.finish();
+ }
+ });
+}
+
+// Run the tests
+addLoadEvent(next);
+
+</script>
+
+</body>
+</html>
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