X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/36f6233fd79390ad5af8a1532eac60a0ae57c825..f938afb8ab4cb091d12e0ef0311eaea14b774798:/redakcja/static/js/lib/codemirror/util.js diff --git a/redakcja/static/js/lib/codemirror/util.js b/redakcja/static/js/lib/codemirror/util.js new file mode 100644 index 00000000..796025ee --- /dev/null +++ b/redakcja/static/js/lib/codemirror/util.js @@ -0,0 +1,125 @@ +/* A few useful utility functions. */ + +var internetExplorer = document.selection && window.ActiveXObject && /MSIE/.test(navigator.userAgent); +var webkit = /AppleWebKit/.test(navigator.userAgent); +var safari = /Apple Computers, Inc/.test(navigator.vendor); + +// Capture a method on an object. +function method(obj, name) { + return function() {obj[name].apply(obj, arguments);}; +} + +// The value used to signal the end of a sequence in iterators. +var StopIteration = {toString: function() {return "StopIteration"}}; + +// Apply a function to each element in a sequence. +function forEach(iter, f) { + if (iter.next) { + try {while (true) f(iter.next());} + catch (e) {if (e != StopIteration) throw e;} + } + else { + for (var i = 0; i < iter.length; i++) + f(iter[i]); + } +} + +// Map a function over a sequence, producing an array of results. +function map(iter, f) { + var accum = []; + forEach(iter, function(val) {accum.push(f(val));}); + return accum; +} + +// Create a predicate function that tests a string againsts a given +// regular expression. No longer used but might be used by 3rd party +// parsers. +function matcher(regexp){ + return function(value){return regexp.test(value);}; +} + +// Test whether a DOM node has a certain CSS class. Much faster than +// the MochiKit equivalent, for some reason. +function hasClass(element, className){ + var classes = element.className; + return classes && new RegExp("(^| )" + className + "($| )").test(classes); +} + +// Insert a DOM node after another node. +function insertAfter(newNode, oldNode) { + var parent = oldNode.parentNode; + parent.insertBefore(newNode, oldNode.nextSibling); + return newNode; +} + +function removeElement(node) { + if (node.parentNode) + node.parentNode.removeChild(node); +} + +function clearElement(node) { + while (node.firstChild) + node.removeChild(node.firstChild); +} + +// Check whether a node is contained in another one. +function isAncestor(node, child) { + while (child = child.parentNode) { + if (node == child) + return true; + } + return false; +} + +// The non-breaking space character. +var nbsp = "\u00a0"; +var matching = {"{": "}", "[": "]", "(": ")", + "}": "{", "]": "[", ")": "("}; + +// Standardize a few unportable event properties. +function normalizeEvent(event) { + if (!event.stopPropagation) { + event.stopPropagation = function() {this.cancelBubble = true;}; + event.preventDefault = function() {this.returnValue = false;}; + } + if (!event.stop) { + event.stop = function() { + this.stopPropagation(); + this.preventDefault(); + }; + } + + if (event.type == "keypress") { + event.code = (event.charCode == null) ? event.keyCode : event.charCode; + event.character = String.fromCharCode(event.code); + } + return event; +} + +// Portably register event handlers. +function addEventHandler(node, type, handler, removeFunc) { + function wrapHandler(event) { + handler(normalizeEvent(event || window.event)); + } + if (typeof node.addEventListener == "function") { + node.addEventListener(type, wrapHandler, false); + if (removeFunc) return function() {node.removeEventListener(type, wrapHandler, false);}; + } + else { + node.attachEvent("on" + type, wrapHandler); + if (removeFunc) return function() {node.detachEvent("on" + type, wrapHandler);}; + } +} + +function nodeText(node) { + return node.textContent || node.innerText || node.nodeValue || ""; +} + +function nodeTop(node) { + var top = 0; + while (node.offsetParent) { + top += node.offsetTop; + node = node.offsetParent; + } + return top; +}