gorhill
10 years ago
3 changed files with 656 additions and 66 deletions
-
163src/js/popup.js
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558src/js/udom.js
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1src/popup.html
@ -0,0 +1,558 @@ |
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/******************************************************************************* |
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µBlock - a Chromium browser extension to block requests. |
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Copyright (C) 2014 Raymond Hill |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/ |
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/******************************************************************************/ |
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/******************************************************************************/ |
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// It's just a silly, minimalist DOM framework: this allows me to not rely
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// on jQuery. jQuery contains way too much stuff than I need, and as per
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// Opera rules, I am not allowed to use a cut-down version of jQuery. So
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// the code here does *only* what I need, and nothing more, and with a lot
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// of assumption on passed parameters, etc. I grow it on a per-need-basis only.
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var uDom = (function() { |
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/******************************************************************************/ |
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var DOMList = function() { |
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this.nodes = []; |
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}; |
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/******************************************************************************/ |
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var addNodeToList = function(list, node) { |
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if ( node ) { |
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list.nodes.push(node); |
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} |
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return list; |
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}; |
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/******************************************************************************/ |
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var DOMListFactory = function(selector, context) { |
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var r = new DOMList(); |
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if ( typeof selector === 'string' ) { |
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selector = selector.trim(); |
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if ( selector.charAt(0) === '<' ) { |
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return addHTMLToList(r, selector); |
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} |
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if ( selector !== '' ) { |
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return addSelectorToList(r, selector, context); |
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} |
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} |
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if ( selector instanceof Node ) { |
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return addNodeToList(r, selector); |
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} |
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if ( selector instanceof NodeList ) { |
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return addNodeListToList(r, selector); |
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} |
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if ( selector instanceof DOMList ) { |
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return addListToList(r, selector); |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMListFactory.onLoad = function(callback) { |
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window.addEventListener('load', callback); |
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}; |
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/******************************************************************************/ |
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var addNodeListToList = function(list, nodelist) { |
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if ( nodelist ) { |
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var n = nodelist.length; |
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for ( var i = 0; i < n; i++ ) { |
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list.nodes.push(nodelist[i]); |
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} |
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} |
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return list; |
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}; |
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/******************************************************************************/ |
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var addListToList = function(list, other) { |
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list.nodes = list.nodes.concat(other.nodes); |
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return list; |
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}; |
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/******************************************************************************/ |
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var addSelectorToList = function(list, selector, context) { |
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var p = context || document; |
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var r = p.querySelectorAll(selector); |
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var i = r.length; |
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while ( i-- ) { |
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list.nodes.push(r[i]); |
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} |
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return list; |
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}; |
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/******************************************************************************/ |
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var pTagOfChildTag = { |
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'tr': 'table', |
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'option': 'select' |
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}; |
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var addHTMLToList = function(list, html) { |
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var matches = html.match(/^<([a-z]+)/); |
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if ( !matches || matches.length !== 2 ) { |
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return this; |
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} |
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var cTag = matches[1]; |
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var pTag = pTagOfChildTag[cTag] || 'div'; |
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var p = document.createElement(pTag); |
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p.innerHTML = html; |
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// Find real parent
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var c = p.querySelector(cTag); |
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p = c.parentNode; |
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while ( p.firstChild ) { |
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list.nodes.push(p.removeChild(p.firstChild)); |
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} |
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return list; |
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}; |
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/******************************************************************************/ |
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var isDescendantOf = function(descendant, ancestor) { |
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while ( descendant.parentNode !== null ) { |
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if ( descendant.parentNode === ancestor ) { |
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return true; |
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} |
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descendant = descendant.parentNode; |
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} |
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return false; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.length = function() { |
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return this.nodes.length; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.node = function(i) { |
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return this.nodes[i]; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.subset = function(i, l) { |
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var r = new DOMList(); |
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var n = l !== undefined ? l : 1; |
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var j = Math.min(i + n, this.nodes.length); |
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if ( i < j ) { |
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r.nodes = this.nodes.slice(i, j); |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.first = function() { |
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return this.subset(0); |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.parent = function() { |
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var r = new DOMList(); |
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if ( this.nodes.length ) { |
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addNodeToList(r, this.nodes[0].parentNode); |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.ancestors = function(selector) { |
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var r = new DOMList(); |
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if ( this.nodes.length === 0 ) { |
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return r; |
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} |
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var candidates = document.querySelectorAll(selector); |
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var i = candidates.length; |
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var j, candidate; |
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while ( i-- ) { |
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candidate = candidates[i]; |
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j = this.nodes.length; |
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while ( j-- ) { |
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if ( isDescendantOf(this.nodes[j], candidate) ) { |
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addNodeToList(r, candidate); |
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} |
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} |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.find = function(selector) { |
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var r = new DOMList(); |
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var n = this.nodes.length; |
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var nl; |
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for ( var i = 0; i < n; i++ ) { |
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nl = this.nodes[i].querySelectorAll(selector); |
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addNodeListToList(r, nl); |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.contents = function() { |
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var r = new DOMList(); |
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var cnodes, cn, ci; |
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var n = this.nodes.length; |
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for ( var i = 0; i < n; i++ ) { |
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cnodes = this.nodes[i].childNodes; |
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cn = cnodes.length; |
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for ( ci = 0; ci < cn; ci++ ) { |
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addNodeToList(r, cnodes.item(ci)); |
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} |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.forEach = function(callback) { |
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var n = this.nodes.length; |
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for ( var i = 0; i < n; i++ ) { |
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callback.bind(this.nodes[i]).call(); |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.remove = function() { |
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var n = this.nodes.length; |
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var c, p; |
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for ( var i = 0; i < n; i++ ) { |
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c = this.nodes[i]; |
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if ( p = c.parentNode ) { |
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p.removeChild(c); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.empty = function() { |
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var node; |
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var i = this.nodes.length; |
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while ( i-- ) { |
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node = this.nodes[i]; |
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while ( node.firstChild ) { |
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node.removeChild(node.firstChild); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.append = function(selector, context) { |
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var p = this.nodes[0]; |
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if ( p ) { |
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var c = DOMListFactory(selector, context); |
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var n = c.nodes.length; |
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for ( var i = 0; i < n; i++ ) { |
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p.appendChild(c.nodes[i]); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.prepend = function(selector, context) { |
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var p = this.nodes[0]; |
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if ( p ) { |
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var c = DOMListFactory(selector, context); |
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var i = c.nodes.length; |
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while ( i-- ) { |
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p.insertBefore(c.nodes[i], p.firstChild); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.appendTo = function(selector, context) { |
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var p = DOMListFactory(selector, context); |
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if ( p.length ) { |
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var n = this.nodes.length; |
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for ( var i = 0; i < n; i++ ) { |
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p.nodes[0].appendChild(this.nodes[i]); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.insertAfter = function(selector, context) { |
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if ( this.nodes.length === 0 ) { |
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return this; |
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} |
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var p = this.nodes[0].parentNode; |
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if ( !p ) { |
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return this; |
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} |
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var c = DOMListFactory(selector, context); |
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var n = c.nodes.length; |
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for ( var i = 0; i < n; i++ ) { |
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p.appendChild(c.nodes[i]); |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.clone = function(notDeep) { |
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var r = new DOMList(); |
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var n = this.nodes.length; |
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for ( var i = 0; i < n; i++ ) { |
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addNodeToList(r, this.nodes[i].cloneNode(!notDeep)); |
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} |
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return r; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.attr = function(attr, value) { |
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var i = this.nodes.length; |
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if ( value === undefined && typeof attr !== 'object' ) { |
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return i ? this.nodes[0].getAttribute(attr) : undefined; |
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} |
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if ( typeof attr === 'object' ) { |
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var attrNames = Object.keys(attr); |
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var node, j, attrName; |
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while ( i-- ) { |
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node = this.nodes[i]; |
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j = attrNames.length; |
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while ( j-- ) { |
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attrName = attrNames[j]; |
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node.setAttribute(attrName, attr[attrName]); |
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} |
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} |
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} else { |
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while ( i-- ) { |
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this.nodes[i].setAttribute(attr, value); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.prop = function(prop, value) { |
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var i = this.nodes.length; |
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if ( value === undefined ) { |
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return i ? this.nodes[0][prop] : undefined; |
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} |
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while ( i-- ) { |
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this.nodes[i][prop] = value; |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.css = function(prop, value) { |
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var i = this.nodes.length; |
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if ( value === undefined ) { |
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return i ? this.nodes[0].style[prop] : undefined; |
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} |
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while ( i-- ) { |
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this.nodes[i].style[prop] = value; |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.val = function(value) { |
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return this.prop('value', value); |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.html = function(html) { |
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var i = this.nodes.length; |
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if ( html === undefined ) { |
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return i ? this.nodes[0].innerHTML : ''; |
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} |
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while ( i-- ) { |
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this.nodes[i].innerHTML = html; |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.text = function(text) { |
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var i = this.nodes.length; |
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if ( text === undefined ) { |
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return i ? this.nodes[0].textContent : ''; |
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} |
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while ( i-- ) { |
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this.nodes[i].textContent = text; |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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var toggleClass = function(node, className, targetState) { |
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var re = new RegExp('(^| )' + className + '( |$)'); |
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var currentState = re.test(node.className); |
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var newState = targetState; |
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if ( newState === undefined ) { |
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newState = !currentState; |
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} |
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if ( newState === currentState ) { |
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return; |
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} |
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var newClassName = node.className; |
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if ( newState ) { |
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newClassName += ' ' + className; |
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} else { |
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newClassName = newClassName.replace(re, ' '); |
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} |
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node.className = newClassName.trim(); |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.hasClassName = function(className) { |
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if ( !this.nodes.length ) { |
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return false; |
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} |
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var re = new RegExp('(^| )' + className + '( |$)'); |
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return re.test(this.nodes[0].className); |
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}; |
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DOMList.prototype.addClass = function(className) { |
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return this.toggleClass(className, true); |
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}; |
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DOMList.prototype.removeClass = function(className) { |
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if ( className !== undefined ) { |
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return this.toggleClass(className, false); |
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} |
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var i = this.nodes.length; |
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while ( i-- ) { |
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this.nodes[i].className = ''; |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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DOMList.prototype.toggleClass = function(className, targetState) { |
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var classNames = className.split(/\s+/); |
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var i = this.nodes.length; |
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var node, j; |
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while ( i-- ) { |
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node = this.nodes[i]; |
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j = classNames.length; |
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while ( j-- ) { |
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toggleClass(node, classNames[j], targetState); |
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} |
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} |
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return this; |
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}; |
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/******************************************************************************/ |
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var makeEventHandler = function(context, selector, callback) { |
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return function(event) { |
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var candidates = context.querySelectorAll(selector); |
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if ( !candidates.length ) { |
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return; |
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} |
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var node = event.target; |
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var i; |
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while ( node && node !== context ) { |
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i = candidates.length; |
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while ( i-- ) { |
||||
|
if ( candidates[i] === node ) { |
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return callback.call(node, event); |
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} |
||||
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} |
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node = node.parentNode; |
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|
} |
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}; |
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}; |
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||||
|
DOMList.prototype.on = function(etype, selector, callback) { |
||||
|
if ( typeof selector === 'function' ) { |
||||
|
callback = selector; |
||||
|
selector = undefined; |
||||
|
} |
||||
|
var i = this.nodes.length; |
||||
|
while ( i-- ) { |
||||
|
if ( selector !== undefined ) { |
||||
|
this.nodes[i].addEventListener(etype, makeEventHandler(this.nodes[i], selector, callback), true); |
||||
|
} else { |
||||
|
this.nodes[i].addEventListener(etype, callback); |
||||
|
} |
||||
|
} |
||||
|
return this; |
||||
|
}; |
||||
|
|
||||
|
/******************************************************************************/ |
||||
|
|
||||
|
// TODO: Won't work for delegated handlers. Need to figure
|
||||
|
// what needs to be done.
|
||||
|
|
||||
|
DOMList.prototype.off = function(evtype, callback) { |
||||
|
var i = this.nodes.length; |
||||
|
while ( i-- ) { |
||||
|
this.nodes[i].removeEventListener(evtype, callback); |
||||
|
} |
||||
|
return this; |
||||
|
}; |
||||
|
|
||||
|
/******************************************************************************/ |
||||
|
|
||||
|
DOMList.prototype.trigger = function(etype) { |
||||
|
var ev = new CustomEvent(etype); |
||||
|
var i = this.nodes.length; |
||||
|
while ( i-- ) { |
||||
|
this.nodes[i].dispatchEvent(ev); |
||||
|
} |
||||
|
return this; |
||||
|
}; |
||||
|
|
||||
|
/******************************************************************************/ |
||||
|
|
||||
|
return DOMListFactory; |
||||
|
|
||||
|
})(); |
||||
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