gecko-dev/dom/manifest/test/browser_ManifestIcons_brows...

57 строки
1.9 KiB
JavaScript

//Used by JSHint:
/*global Cu, BrowserTestUtils, ok, add_task, gBrowser */
"use strict";
const { ManifestIcons } = Cu.import("resource://gre/modules/ManifestIcons.jsm", {});
const { ManifestObtainer } = Cu.import("resource://gre/modules/ManifestObtainer.jsm", {});
const defaultURL = new URL("http://example.org/browser/dom/manifest/test/resource.sjs");
defaultURL.searchParams.set("Content-Type", "application/manifest+json");
const manifest = JSON.stringify({
icons: [{
sizes: "50x50",
src: "red-50.png?Content-type=image/png"
}, {
sizes: "150x150",
src: "blue-150.png?Content-type=image/png"
}]
});
function makeTestURL(manifest) {
const url = new URL(defaultURL);
const body = `<link rel="manifest" href='${defaultURL}&body=${manifest}'>`;
url.searchParams.set("Content-Type", "text/html; charset=utf-8");
url.searchParams.set("body", encodeURIComponent(body));
return url.href;
}
function getIconColor(icon) {
return new Promise((resolve, reject) => {
const canvas = content.document.createElement('canvas');
const ctx = canvas.getContext("2d");
const image = new content.Image();
image.onload = function() {
ctx.drawImage(image, 0, 0);
resolve(ctx.getImageData(1, 1, 1, 1).data);
};
image.onerror = function() {
reject(new Error("could not create image"));
};
image.src = icon;
});
}
add_task(function*() {
const tabOptions = {gBrowser, url: makeTestURL(manifest)};
yield BrowserTestUtils.withNewTab(tabOptions, function*(browser) {
const manifest = yield ManifestObtainer.browserObtainManifest(browser);
let icon = yield ManifestIcons.browserFetchIcon(browser, manifest, 25);
let color = yield ContentTask.spawn(browser, icon, getIconColor);
is(color[0], 255, 'Fetched red icon');
icon = yield ManifestIcons.browserFetchIcon(browser, manifest, 500);
color = yield ContentTask.spawn(browser, icon, getIconColor);
is(color[2], 255, 'Fetched blue icon');
});
});