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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
/*
* 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, currentIndex, listObj) {
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, currentIndex, listObj) {
icons.push({
'type': property,
'href': currentValue.content
})
}
)
}
function collect_meta_name_icons(icons, name) {
document.querySelectorAll('meta[name="' + name + '"]').forEach(
function(currentValue, currentIndex, listObj) {
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': icons
}
browser.runtime.sendNativeMessage("MozacBrowserIcons", message);