diff options
Diffstat (limited to 'framework/Web/Javascripts/prototype/selector.js')
-rw-r--r-- | framework/Web/Javascripts/prototype/selector.js | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/framework/Web/Javascripts/prototype/selector.js b/framework/Web/Javascripts/prototype/selector.js deleted file mode 100644 index cb900e17..00000000 --- a/framework/Web/Javascripts/prototype/selector.js +++ /dev/null @@ -1,110 +0,0 @@ -var Selector = Class.create(); -Selector.prototype = { - initialize: function(expression) { - this.params = {classNames: []}; - this.expression = expression.toString().strip(); - this.parseExpression(); - this.compileMatcher(); - }, - - parseExpression: function() { - function abort(message) { throw 'Parse error in selector: ' + message; } - - if (this.expression == '') abort('empty expression'); - - var params = this.params, expr = this.expression, match, modifier, clause, rest; - while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) { - params.attributes = params.attributes || []; - params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''}); - expr = match[1]; - } - - if (expr == '*') return this.params.wildcard = true; - - while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)) { - modifier = match[1], clause = match[2], rest = match[3]; - switch (modifier) { - case '#': params.id = clause; break; - case '.': params.classNames.push(clause); break; - case '': - case undefined: params.tagName = clause.toUpperCase(); break; - default: abort(expr.inspect()); - } - expr = rest; - } - - if (expr.length > 0) abort(expr.inspect()); - }, - - buildMatchExpression: function() { - var params = this.params, conditions = [], clause; - - if (params.wildcard) - conditions.push('true'); - if (clause = params.id) - conditions.push('element.id == ' + clause.inspect()); - if (clause = params.tagName) - conditions.push('element.tagName.toUpperCase() == ' + clause.inspect()); - if ((clause = params.classNames).length > 0) - for (var i = 0; i < clause.length; i++) - conditions.push('Element.hasClassName(element, ' + clause[i].inspect() + ')'); - if (clause = params.attributes) { - clause.each(function(attribute) { - var value = 'element.getAttribute(' + attribute.name.inspect() + ')'; - var splitValueBy = function(delimiter) { - return value + ' && ' + value + '.split(' + delimiter.inspect() + ')'; - } - - switch (attribute.operator) { - case '=': conditions.push(value + ' == ' + attribute.value.inspect()); break; - case '~=': conditions.push(splitValueBy(' ') + '.include(' + attribute.value.inspect() + ')'); break; - case '|=': conditions.push( - splitValueBy('-') + '.first().toUpperCase() == ' + attribute.value.toUpperCase().inspect() - ); break; - case '!=': conditions.push(value + ' != ' + attribute.value.inspect()); break; - case '': - case undefined: conditions.push(value + ' != null'); break; - default: throw 'Unknown operator ' + attribute.operator + ' in selector'; - } - }); - } - - return conditions.join(' && '); - }, - - compileMatcher: function() { - this.match = new Function('element', 'if (!element.tagName) return false; \ - return ' + this.buildMatchExpression()); - }, - - findElements: function(scope) { - var element; - - if (element = $(this.params.id)) - if (this.match(element)) - if (!scope || Element.childOf(element, scope)) - return [element]; - - scope = (scope || document).getElementsByTagName(this.params.tagName || '*'); - - var results = []; - for (var i = 0; i < scope.length; i++) - if (this.match(element = scope[i])) - results.push(Element.extend(element)); - - return results; - }, - - toString: function() { - return this.expression; - } -} - -function $$() { - return $A(arguments).map(function(expression) { - return expression.strip().split(/\s+/).inject([null], function(results, expr) { - var selector = new Selector(expr); - return results.map(selector.findElements.bind(selector)).flatten(); - }); - }).flatten(); -} |