46 lines
1.4 KiB
JavaScript
46 lines
1.4 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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"use strict";
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const SIMPLE = TEST_BASE_HTTP + "simple.css";
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const DOCUMENT_WITH_ONE_STYLESHEET = "data:text/html;charset=UTF-8," +
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encodeURIComponent(
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["<!DOCTYPE html>",
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"<html>",
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" <head>",
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" <title>Bug 870339</title>",
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' <link rel="stylesheet" type="text/css" href="' + SIMPLE + '">',
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" </head>",
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" <body>",
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" </body>",
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"</html>"
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].join("\n"));
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add_task(function* () {
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let { ui } = yield openStyleEditorForURL(DOCUMENT_WITH_ONE_STYLESHEET);
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// Spam the _onNewDocument callback multiple times before the
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// StyleEditorActor has a chance to respond to the first one.
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const SPAM_COUNT = 2;
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for (let i = 0; i < SPAM_COUNT; ++i) {
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ui._onNewDocument();
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}
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// Wait for the StyleEditorActor to respond to each "newDocument"
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// message.
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yield new Promise(resolve => {
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let loadCount = 0;
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ui.on("stylesheets-reset", function onReset() {
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++loadCount;
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if (loadCount == SPAM_COUNT) {
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ui.off("stylesheets-reset", onReset);
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// No matter how large SPAM_COUNT is, the number of style
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// sheets should never be more than the number of style sheets
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// in the document.
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is(ui.editors.length, 1, "correct style sheet count");
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resolve();
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}
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});
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});
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});
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