mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
120 lines
4.6 KiB
JavaScript
120 lines
4.6 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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/* This list allows pre-existing or 'unfixable' CSS issues to remain, while we
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* detect newly occurring issues in shipping CSS. It is a list of objects
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* specifying conditions under which an error should be ignored.
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*
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* Every property of the objects in it needs to consist of a regular expression
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* matching the offending error. If an object has multiple regex criteria, they
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* ALL need to match an error in order for that error not to cause a test
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* failure. */
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const kWhitelist = [
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{sourceName: /cleopatra.*(tree|ui)\.css/i}, /* Cleopatra is imported as-is, see bug 1004421 */
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{sourceName: /codemirror\.css/i}, /* CodeMirror is imported as-is, see bug 1004423 */
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{sourceName: /web\/viewer\.css/i, errorMessage: /Unknown pseudo-class.*(fullscreen|selection)/i }, /* PDFjs is futureproofing its pseudoselectors, and those rules are dropped. */
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{sourceName: /aboutaccounts\/(main|normalize)\.css/i}, /* Tracked in bug 1004428 */
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{sourceName: /loop\/.*sdk-content\/.*\.css$/i /* TokBox SDK assets, see bug 1032469 */}
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];
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let moduleLocation = gTestPath.replace(/\/[^\/]*$/i, "/parsingTestHelpers.jsm");
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let {generateURIsFromDirTree} = Cu.import(moduleLocation, {});
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/**
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* Check if an error should be ignored due to matching one of the whitelist
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* objects defined in kWhitelist
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*
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* @param aErrorObject the error to check
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* @return true if the error should be ignored, false otherwise.
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*/
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function ignoredError(aErrorObject) {
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for (let whitelistItem of kWhitelist) {
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let matches = true;
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for (let prop in whitelistItem) {
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if (!whitelistItem[prop].test(aErrorObject[prop] || "")) {
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matches = false;
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break;
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}
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}
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if (matches) {
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return true;
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}
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}
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return false;
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}
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add_task(function checkAllTheCSS() {
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let appDir = Services.dirsvc.get("XCurProcD", Ci.nsIFile);
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// This asynchronously produces a list of URLs (sadly, mostly sync on our
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// test infrastructure because it runs against jarfiles there, and
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// our zipreader APIs are all sync)
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let uris = yield generateURIsFromDirTree(appDir, ".css");
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// Create a clean iframe to load all the files into:
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let hiddenWin = Services.appShell.hiddenDOMWindow;
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let iframe = hiddenWin.document.createElementNS("http://www.w3.org/1999/xhtml", "html:iframe");
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hiddenWin.document.documentElement.appendChild(iframe);
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let doc = iframe.contentWindow.document;
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// Listen for errors caused by the CSS:
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let errorListener = {
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observe: function(aMessage) {
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if (!aMessage || !(aMessage instanceof Ci.nsIScriptError)) {
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return;
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}
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// Only care about CSS errors generated by our iframe:
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if (aMessage.category.contains("CSS") && aMessage.innerWindowID === 0 && aMessage.outerWindowID === 0) {
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// Check if this error is whitelisted in kWhitelist
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if (!ignoredError(aMessage)) {
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ok(false, "Got error message for " + aMessage.sourceName + ": " + aMessage.errorMessage);
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errors++;
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} else {
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info("Ignored error for " + aMessage.sourceName + " because of filter.");
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}
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}
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}
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};
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// We build a list of promises that get resolved when their respective
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// files have loaded and produced no errors.
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let allPromises = [];
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let errors = 0;
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// Register the error listener to keep track of errors.
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Services.console.registerListener(errorListener);
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for (let uri of uris) {
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let linkEl = doc.createElement("link");
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linkEl.setAttribute("rel", "stylesheet");
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let promiseForThisSpec = Promise.defer();
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let onLoad = (e) => {
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promiseForThisSpec.resolve();
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linkEl.removeEventListener("load", onLoad);
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linkEl.removeEventListener("error", onError);
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};
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let onError = (e) => {
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promiseForThisSpec.reject({error: e, href: linkEl.getAttribute("href")});
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linkEl.removeEventListener("load", onLoad);
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linkEl.removeEventListener("error", onError);
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};
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linkEl.addEventListener("load", onLoad);
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linkEl.addEventListener("error", onError);
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linkEl.setAttribute("type", "text/css");
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linkEl.setAttribute("href", uri.spec);
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allPromises.push(promiseForThisSpec.promise);
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doc.head.appendChild(linkEl);
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}
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// Wait for all the files to have actually loaded:
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yield Promise.all(allPromises);
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// Count errors (the test output will list actual issues for us, as well
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// as the ok(false) in the error listener)
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is(errors, 0, "All the styles (" + allPromises.length + ") loaded without errors.");
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// Clean up to avoid leaks:
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Services.console.unregisterListener(errorListener);
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iframe.remove();
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doc.head.innerHTML = '';
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doc = null;
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iframe = null;
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});
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