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Diffstat (limited to 'src/usr/local/www/javascript/domTT/behaviour.js')
| -rw-r--r-- | src/usr/local/www/javascript/domTT/behaviour.js | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/usr/local/www/javascript/domTT/behaviour.js b/src/usr/local/www/javascript/domTT/behaviour.js new file mode 100644 index 0000000..21b28d7 --- /dev/null +++ b/src/usr/local/www/javascript/domTT/behaviour.js @@ -0,0 +1,254 @@ +/* + Behaviour v1.1 by Ben Nolan, June 2005. Based largely on the work + of Simon Willison (see comments by Simon below). + + Description: + + Uses css selectors to apply javascript behaviours to enable + unobtrusive javascript in html documents. + + Usage: + + var myrules = { + 'b.someclass' : function(element){ + element.onclick = function(){ + alert(this.innerHTML); + } + }, + '#someid u' : function(element){ + element.onmouseover = function(){ + this.innerHTML = "BLAH!"; + } + } + }; + + Behaviour.register(myrules); + + // Call Behaviour.apply() to re-apply the rules (if you + // update the dom, etc). + + License: + + This file is entirely BSD licensed. + + More information: + + http://ripcord.co.nz/behaviour/ + +*/ + +var Behaviour = { + list : new Array, + + register : function(sheet){ + Behaviour.list.push(sheet); + }, + + start : function(){ + Behaviour.addLoadEvent(function(){ + Behaviour.apply(); + }); + }, + + apply : function(){ + for (h=0;sheet=Behaviour.list[h];h++){ + for (selector in sheet){ + list = document.getElementsBySelector(selector); + + if (!list){ + continue; + } + + for (i=0;element=list[i];i++){ + sheet[selector](element); + } + } + } + }, + + addLoadEvent : function(func){ + var oldonload = window.onload; + + if (typeof window.onload != 'function') { + window.onload = func; + } else { + window.onload = function() { + oldonload(); + func(); + }; + } + } +}; + +Behaviour.start(); + +/* + The following code is Copyright (C) Simon Willison 2004. + + document.getElementsBySelector(selector) + - returns an array of element objects from the current document + matching the CSS selector. Selectors can contain element names, + class names and ids and can be nested. For example: + + elements = document.getElementsBySelect('div#main p a.external') + + Will return an array of all 'a' elements with 'external' in their + class attribute that are contained inside 'p' elements that are + contained inside the 'div' element which has id="main" + + New in version 0.4: Support for CSS2 and CSS3 attribute selectors: + See http://www.w3.org/TR/css3-selectors/#attribute-selectors + + Version 0.4 - Simon Willison, March 25th 2003 + -- Works in Phoenix 0.5, Mozilla 1.3, Opera 7, Internet Explorer 6, Internet Explorer 5 on Windows + -- Opera 7 fails +*/ + +function getAllChildren(e) { + // Returns all children of element. Workaround required for IE5/Windows. Ugh. + return e.all ? e.all : e.getElementsByTagName('*'); +} + +document.getElementsBySelector = function(selector) { + // Attempt to fail gracefully in lesser browsers + if (!document.getElementsByTagName) { + return new Array(); + } + // Split selector in to tokens + var tokens = selector.split(' '); + var currentContext = new Array(document); + for (var i = 0; i < tokens.length; i++) { + token = tokens[i].replace(/^\s+/,'').replace(/\s+$/,''); + if (token.indexOf('#') > -1) { + // Token is an ID selector + var bits = token.split('#'); + var tagName = bits[0]; + var id = bits[1]; + var element = document.getElementById(id); + if (tagName && element.nodeName.toLowerCase() != tagName) { + // tag with that ID not found, return false + return new Array(); + } + // Set currentContext to contain just this element + currentContext = new Array(element); + continue; // Skip to next token + } + if (token.indexOf('.') > -1) { + // Token contains a class selector + var bits = token.split('.'); + var tagName = bits[0]; + var className = bits[1]; + if (!tagName) { + tagName = '*'; + } + // Get elements matching tag, filter them for class selector + var found = new Array; + var foundCount = 0; + for (var h = 0; h < currentContext.length; h++) { + var elements; + if (tagName == '*') { + elements = getAllChildren(currentContext[h]); + } else { + elements = currentContext[h].getElementsByTagName(tagName); + } + for (var j = 0; j < elements.length; j++) { + found[foundCount++] = elements[j]; + } + } + currentContext = new Array; + var currentContextIndex = 0; + for (var k = 0; k < found.length; k++) { + if (found[k].className && found[k].className.match(new RegExp('\\b'+className+'\\b'))) { + currentContext[currentContextIndex++] = found[k]; + } + } + continue; // Skip to next token + } + // Code to deal with attribute selectors + if (token.match(/^(\w*)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/)) { + var tagName = RegExp.$1; + var attrName = RegExp.$2; + var attrOperator = RegExp.$3; + var attrValue = RegExp.$4; + if (!tagName) { + tagName = '*'; + } + // Grab all of the tagName elements within current context + var found = new Array; + var foundCount = 0; + for (var h = 0; h < currentContext.length; h++) { + var elements; + if (tagName == '*') { + elements = getAllChildren(currentContext[h]); + } else { + elements = currentContext[h].getElementsByTagName(tagName); + } + for (var j = 0; j < elements.length; j++) { + found[foundCount++] = elements[j]; + } + } + currentContext = new Array; + var currentContextIndex = 0; + var checkFunction; // This function will be used to filter the elements + switch (attrOperator) { + case '=': // Equality + checkFunction = function(e) { return (e.getAttribute(attrName) == attrValue); }; + break; + case '~': // Match one of space separated words + checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('\\b'+attrValue+'\\b'))); }; + break; + case '|': // Match start with value followed by optional hyphen + checkFunction = function(e) { return (e.getAttribute(attrName).match(new RegExp('^'+attrValue+'-?'))); }; + break; + case '^': // Match starts with value + checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) == 0); }; + break; + case '$': // Match ends with value - fails with "Warning" in Opera 7 + checkFunction = function(e) { return (e.getAttribute(attrName).lastIndexOf(attrValue) == e.getAttribute(attrName).length - attrValue.length); }; + break; + case '*': // Match ends with value + checkFunction = function(e) { return (e.getAttribute(attrName).indexOf(attrValue) > -1); }; + break; + default : + // Just test for existence of attribute + checkFunction = function(e) { return e.getAttribute(attrName); }; + } + currentContext = new Array; + var currentContextIndex = 0; + for (var k = 0; k < found.length; k++) { + if (checkFunction(found[k])) { + currentContext[currentContextIndex++] = found[k]; + } + } + // alert('Attribute Selector: '+tagName+' '+attrName+' '+attrOperator+' '+attrValue); + continue; // Skip to next token + } + + if (!currentContext[0]){ + return; + } + + // If we get here, token is JUST an element (not a class or ID selector) + tagName = token; + var found = new Array; + var foundCount = 0; + for (var h = 0; h < currentContext.length; h++) { + var elements = currentContext[h].getElementsByTagName(tagName); + for (var j = 0; j < elements.length; j++) { + found[foundCount++] = elements[j]; + } + } + currentContext = found; + } + return currentContext; +} + +/* That revolting regular expression explained +/^(\w+)\[(\w+)([=~\|\^\$\*]?)=?"?([^\]"]*)"?\]$/ + \---/ \---/\-------------/ \-------/ + | | | | + | | | The value + | | ~,|,^,$,* or = + | Attribute + Tag +*/ |
