зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
2.2 KiB
JavaScript
93 строки
2.2 KiB
JavaScript
// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
|
|
/* 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 file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
"use strict";
|
|
|
|
// This file and Readability-readerable.js are merged together into
|
|
// Readerable.jsm.
|
|
|
|
/* exported Readerable */
|
|
/* import-globals-from Readability-readerable.js */
|
|
|
|
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
|
|
const { XPCOMUtils } = ChromeUtils.import(
|
|
"resource://gre/modules/XPCOMUtils.jsm"
|
|
);
|
|
|
|
function isNodeVisible(node) {
|
|
return node.clientHeight > 0 && node.clientWidth > 0;
|
|
}
|
|
|
|
var Readerable = {
|
|
get isEnabledForParseOnLoad() {
|
|
return this.isEnabled || this.isForceEnabled;
|
|
},
|
|
|
|
/**
|
|
* Decides whether or not a document is reader-able without parsing the whole thing.
|
|
*
|
|
* @param doc A document to parse.
|
|
* @return boolean Whether or not we should show the reader mode button.
|
|
*/
|
|
isProbablyReaderable(doc) {
|
|
// Only care about 'real' HTML documents:
|
|
if (
|
|
doc.mozSyntheticDocument ||
|
|
!(doc instanceof doc.defaultView.HTMLDocument)
|
|
) {
|
|
return false;
|
|
}
|
|
|
|
let uri = Services.io.newURI(doc.location.href);
|
|
if (!this.shouldCheckUri(uri)) {
|
|
return false;
|
|
}
|
|
|
|
return isProbablyReaderable(doc, isNodeVisible);
|
|
},
|
|
|
|
_blockedHosts: [
|
|
"amazon.com",
|
|
"github.com",
|
|
"mail.google.com",
|
|
"pinterest.com",
|
|
"reddit.com",
|
|
"twitter.com",
|
|
"youtube.com",
|
|
],
|
|
|
|
shouldCheckUri(uri, isBaseUri = false) {
|
|
if (!["http", "https"].includes(uri.scheme)) {
|
|
return false;
|
|
}
|
|
|
|
if (!isBaseUri) {
|
|
// Sadly, some high-profile pages have false positives, so bail early for those:
|
|
let { host } = uri;
|
|
if (this._blockedHosts.some(blockedHost => host.endsWith(blockedHost))) {
|
|
return false;
|
|
}
|
|
|
|
if (uri.filePath == "/") {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
},
|
|
};
|
|
|
|
XPCOMUtils.defineLazyPreferenceGetter(
|
|
Readerable,
|
|
"isEnabled",
|
|
"reader.parse-on-load.enabled",
|
|
true
|
|
);
|
|
XPCOMUtils.defineLazyPreferenceGetter(
|
|
Readerable,
|
|
"isForceEnabled",
|
|
"reader.parse-on-load.force-enabled",
|
|
false
|
|
);
|