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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
/* eslint-env webextensions */
/*
* This web extension looks for known icon tags, collects URLs and available
* meta data (e.g. sizes) and passes that to the app code.
*/
/**
* Takes a DOMTokenList and returns a String array.
*/
function sizesToList(sizes) {
if (sizes == null) {
return [];
}
if (!(sizes instanceof DOMTokenList)) {
return [];
}
return Array.from(sizes);
}
function collect_link_icons(icons, rel) {
document
.querySelectorAll('link[rel="' + rel + '"]')
.forEach(function (currentValue) {
icons.push({
type: rel,
href: currentValue.href,
sizes: sizesToList(currentValue.sizes),
mimeType: currentValue.type,
});
});
}
function collect_meta_property_icons(icons, property) {
document
.querySelectorAll('meta[property="' + property + '"]')
.forEach(function (currentValue) {
icons.push({
type: property,
href: currentValue.content,
});
});
}
function collect_meta_name_icons(icons, name) {
document
.querySelectorAll('meta[name="' + name + '"]')
.forEach(function (currentValue) {
icons.push({
type: name,
href: currentValue.content,
});
});
}
let icons = [];
collect_link_icons(icons, "icon");
collect_link_icons(icons, "shortcut icon");
collect_link_icons(icons, "fluid-icon");
collect_link_icons(icons, "apple-touch-icon");
collect_link_icons(icons, "image_src");
collect_link_icons(icons, "apple-touch-icon image_src");
collect_link_icons(icons, "apple-touch-icon-precomposed");
collect_meta_property_icons(icons, "og:image");
collect_meta_property_icons(icons, "og:image:url");
collect_meta_property_icons(icons, "og:image:secure_url");
collect_meta_name_icons(icons, "twitter:image");
collect_meta_name_icons(icons, "msapplication-TileImage");
let message = {
url: document.location.href,
icons,
};
browser.runtime.sendNativeMessage("MozacBrowserIcons", message);