← All changes | js/js_inject.js +87 -65 1.0.13 → 2.2.3 View file →

		@@ -1,80 +1,102 @@
1		-function insertAfter(newNode, referenceNode) {
2		- referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
3		-}
4		-function getElementByXPath(xPath, doc){
5		- if(!doc) doc = document;
6		- if(doc.evaluate) return doc.evaluate(xPath, document, null, 9, null).singleNodeValue;
7		- // for IE
8		- while(xPath.charAt(0) == '/') xPath = xPath.substr(1);
9		- var prevElem = doc;
10		- var arr = xPath.split('/');
11		- for(var i=0; i<arr.length; i++){
12		- var step = arr[i].split(/(\w*)\[(\d*)\]/gi).filter(function(v){ return !(v==''||v.match(/\s/gi)) },this);
13		- var elem = step[0];
14		- var elemNum = step[1]?step[1]-1:0; // -1 since xpath is 1 based
15		- if(i<arr.length-1) prevElem = prevElem.getElementsByTagName(elem)[elemNum];
16		- else return prevElem.getElementsByTagName(elem)[elemNum];
17		- }
18		-}
	1	+/* ────────────────────────────────────────────────────────────────────────────
	2	+ Utility helpers
	3	+ ────────────────────────────────────────────────────────────────────────── */
19	4
	5	+(function () {
	6	+ 'use strict';
20	7
21		-/**
22		- * Copyright (c) Mozilla Foundation http://www.mozilla.org/
23		- * This code is available under the terms of the MIT License
24		- */
25		-if (!Array.prototype.filter) {
26		- Array.prototype.filter = function(fun /*, thisp*/) {
27		- var len = this.length >>> 0;
28		- if (typeof fun != "function") {
29		- throw new TypeError();
30		- }
	8	+ /* ---------- insertAfter ------------------------------------------------ */
	9	+ /* Fast path for “append” avoids creating a reference to nextSibling. */
	10	+ function insertAfter(newNode, referenceNode) {
	11	+ const parent = referenceNode.parentNode;
	12	+ if (parent.lastChild === referenceNode) {
	13	+ parent.appendChild(newNode);
	14	+ } else {
	15	+ parent.insertBefore(newNode, referenceNode.nextSibling);
	16	+ }
	17	+ }
31	18
32		- var res = [];
33		- var thisp = arguments[1];
34		- for (var i = 0; i < len; i++) {
35		- if (i in this) {
36		- var val = this[i]; // in case fun mutates this
37		- if (fun.call(thisp, val, i, this)) {
38		- res.push(val);
39		- }
40		- }
41		- }
	19	+ /* ---------- getElementByXPath ----------------------------------------- */
	20	+ /* 1) Use native evaluate where available (all evergreen browsers). */
	21	+ /* 2) Small, allocation-free fallback for very old IE engines. */
	22	+ function getElementByXPath(xPath, doc = document) {
	23	+ if (doc.evaluate) {
	24	+ // XPathResult.FIRST_ORDERED_NODE_TYPE = 9
	25	+ return doc.evaluate(
	26	+ xPath,
	27	+ doc,
	28	+ null,
	29	+ 9,
	30	+ null
	31	+ ).singleNodeValue;
	32	+ }
42	33
43		- return res;
44		- };
45		-}
46		-/* END MIT License code */
	34	+ // Fallback (legacy IE) – minimal parsing, no .filter / regex loops
	35	+ xPath = xPath.replace(/^\/+/, ''); // strip leading “/”
	36	+ const steps = xPath.split('/');
	37	+ let current = doc;
47	38
48		-function injectWidgetByXpath(xpath){
49		-
50		- var n = getElementByXPath(xpath);
51		-
52		- // Default placement in case the xpath location is not found
53		- if (n==null){
54		- n = document.getElementById("tbdefault");
	39	+ for (let i = 0, l = steps.length; i < l && current; i += 1) {
	40	+ const match = /([^\[\]]+)(?:\[(\d+)\])?/.exec(steps[i]);
	41	+ if (!match) return null;
	42	+ const [, tag, idx] = match;
	43	+ const pos = idx ? (idx - 1) : 0; // XPath indices are 1-based
	44	+ current = current.getElementsByTagName(tag)[pos] || null;
55	45	}
56		- innerInject(n);
57		-}
	46	+ return current;
	47	+ }
58	48
59		-function injectWidgetByMarker(markerId){
60		- var markerNode = document.getElementById(markerId);
61		- innerInject(markerNode.parentNode);
62		-}
	49	+ /* ---------- Array.prototype.filter polyfill (unchanged API) ------------ */
	50	+ /* MIT – kept for <= IE8; tightened slightly for speed/readability. */
	51	+ /* eslint-disable-next-line no-extend-native */
	52	+ if (!Array.prototype.filter) {
	53	+ Array.prototype.filter = function (callback, thisArg) {
	54	+ if (typeof callback !== 'function') throw new TypeError();
	55	+ const out = [];
	56	+ for (let i = 0, l = this.length >>> 0; i < l; i += 1) {
	57	+ if (i in this) {
	58	+ const val = this[i];
	59	+ if (callback.call(thisArg, val, i, this)) out.push(val);
	60	+ }
	61	+ }
	62	+ return out;
	63	+ };
	64	+ }
63	65
64		-function innerInject(node){
	66	+ /* ---------- Injection helpers ----------------------------------------- */
65	67
66		- var c = document.createElement("span");
67		- var s = document.createElement("script");
	68	+ function injectWidgetByXpath(xpath) {
	69	+ const anchor =
	70	+ getElementByXPath(xpath) || document.getElementById('tbdefault');
	71	+ if (anchor) innerInject(anchor);
	72	+ }
68	73
69		- // Notice that minifier will replce single quotes to double quotes. here it must remain with single quotes
70		- var noticeForDeveloper = "if JS crashes here, the first innerHTML value should be enclosed with single quotes instead of double, go to the minified version and change it";
71		- c.innerHTML = '{{HTML}}';
72		- s.innerHTML = "{{SCRIPT}}";
	74	+ function injectWidgetByMarker(markerId) {
	75	+ const markerNode = document.getElementById(markerId);
	76	+ if (markerNode && markerNode.parentNode) innerInject(markerNode.parentNode);
	77	+ }
73	78
74		- insertAfter(c,node);
75		- insertAfter(s,c);
76		-}
	79	+ /* One reflow: build everything in a fragment, then insert once. */
	80	+ function innerInject(node) {
	81	+ if (!node) return;
77	82
	83	+ const fragment = document.createDocumentFragment();
	84	+ const container = document.createElement('span');
	85	+ const script = document.createElement('script');
78	86
	87	+ /* Keep single quotes – some minifiers mangle this otherwise. */
	88	+ container.insertAdjacentHTML('beforeend', '{{HTML}}');
	89	+ script.text = "{{SCRIPT}}";
79	90
	91	+ fragment.appendChild(container);
	92	+ fragment.appendChild(script);
	93	+ insertAfter(fragment, node);
	94	+ }
80	95
	96	+ /* ---------- Export to global scope (names unchanged) ------------------- */
	97	+ window.insertAfter = insertAfter;
	98	+ window.getElementByXPath = getElementByXPath;
	99	+ window.injectWidgetByXpath = injectWidgetByXpath;
	100	+ window.injectWidgetByMarker = injectWidgetByMarker;
	101	+ window.innerInject = innerInject;
	102	+}());