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.svn | ||
.svn | ||
*/**/.DS_Store | ||
.DS_Store | ||
app/.DS_STORE |
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LowPro = {}; | ||
LowPro.Version = '0.5'; | ||
LowPro.CompatibleWithPrototype = '1.6'; | ||
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if (Prototype.Version.indexOf(LowPro.CompatibleWithPrototype) != 0 && window.console && window.console.warn) | ||
console.warn("This version of Low Pro is tested with Prototype " + LowPro.CompatibleWithPrototype + | ||
" it may not work as expected with this version (" + Prototype.Version + ")"); | ||
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if (!Element.addMethods) | ||
Element.addMethods = function(o) { Object.extend(Element.Methods, o) }; | ||
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// Simple utility methods for working with the DOM | ||
DOM = {}; | ||
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// DOMBuilder for prototype | ||
DOM.Builder = { | ||
tagFunc : function(tag) { | ||
return function() { | ||
var attrs, children; | ||
if (arguments.length>0) { | ||
if (arguments[0].constructor == Object) { | ||
attrs = arguments[0]; | ||
children = Array.prototype.slice.call(arguments, 1); | ||
} else { | ||
children = arguments; | ||
}; | ||
children = $A(children).flatten() | ||
} | ||
return DOM.Builder.create(tag, attrs, children); | ||
}; | ||
}, | ||
create : function(tag, attrs, children) { | ||
attrs = attrs || {}; children = children || []; tag = tag.toLowerCase(); | ||
var el = new Element(tag, attrs); | ||
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for (var i=0; i<children.length; i++) { | ||
if (typeof children[i] == 'string') | ||
children[i] = document.createTextNode(children[i]); | ||
el.appendChild(children[i]); | ||
} | ||
return $(el); | ||
} | ||
}; | ||
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// Automatically create node builders as $tagName. | ||
(function() { | ||
var els = ("p|div|span|strong|em|img|table|tr|td|th|thead|tbody|tfoot|pre|code|" + | ||
"h1|h2|h3|h4|h5|h6|ul|ol|li|form|input|textarea|legend|fieldset|" + | ||
"select|option|blockquote|cite|br|hr|dd|dl|dt|address|a|button|abbr|acronym|" + | ||
"script|link|style|bdo|ins|del|object|param|col|colgroup|optgroup|caption|" + | ||
"label|dfn|kbd|samp|var").split("|"); | ||
var el, i=0; | ||
while (el = els[i++]) | ||
window['$' + el] = DOM.Builder.tagFunc(el); | ||
})(); | ||
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DOM.Builder.fromHTML = function(html) { | ||
var root; | ||
if (!(root = arguments.callee._root)) | ||
root = arguments.callee._root = document.createElement('div'); | ||
root.innerHTML = html; | ||
return root.childNodes[0]; | ||
}; | ||
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// Wraps the 1.6 contentloaded event for backwards compatibility | ||
// | ||
// Usage: | ||
// | ||
// Event.onReady(callbackFunction); | ||
Object.extend(Event, { | ||
onReady : function(f) { | ||
if (document.body) f(); | ||
else document.observe('dom:loaded', f); | ||
} | ||
}); | ||
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// Based on event:Selectors by Justin Palmer | ||
// http://encytemedia.com/event-selectors/ | ||
// | ||
// Usage: | ||
// | ||
// Event.addBehavior({ | ||
// "selector:event" : function(event) { /* event handler. this refers to the element. */ }, | ||
// "selector" : function() { /* runs function on dom ready. this refers to the element. */ } | ||
// ... | ||
// }); | ||
// | ||
// Multiple calls will add to exisiting rules. Event.addBehavior.reassignAfterAjax and | ||
// Event.addBehavior.autoTrigger can be adjusted to needs. | ||
Event.addBehavior = function(rules) { | ||
var ab = this.addBehavior; | ||
Object.extend(ab.rules, rules); | ||
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if (!ab.responderApplied) { | ||
Ajax.Responders.register({ | ||
onComplete : function() { | ||
if (Event.addBehavior.reassignAfterAjax) | ||
setTimeout(function() { ab.reload() }, 10); | ||
} | ||
}); | ||
ab.responderApplied = true; | ||
} | ||
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if (ab.autoTrigger) { | ||
this.onReady(ab.load.bind(ab, rules)); | ||
} | ||
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}; | ||
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Event.delegate = function(rules) { | ||
return function(e) { | ||
var element = $(e.element()); | ||
for (var selector in rules) | ||
if (element.match(selector)) return rules[selector].apply(this, $A(arguments)); | ||
} | ||
} | ||
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Object.extend(Event.addBehavior, { | ||
rules : {}, cache : [], | ||
reassignAfterAjax : false, | ||
autoTrigger : true, | ||
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load : function(rules) { | ||
for (var selector in rules) { | ||
var observer = rules[selector]; | ||
var sels = selector.split(','); | ||
sels.each(function(sel) { | ||
var parts = sel.split(/:(?=[a-z]+$)/), css = parts[0], event = parts[1]; | ||
$$(css).each(function(element) { | ||
if (event) { | ||
var wrappedObserver = Event.addBehavior._wrapObserver(observer); | ||
$(element).observe(event, wrappedObserver); | ||
Event.addBehavior.cache.push([element, event, wrappedObserver]); | ||
} else { | ||
if (!element.$$assigned || !element.$$assigned.include(observer)) { | ||
if (observer.attach) observer.attach(element); | ||
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else observer.call($(element)); | ||
element.$$assigned = element.$$assigned || []; | ||
element.$$assigned.push(observer); | ||
} | ||
} | ||
}); | ||
}); | ||
} | ||
}, | ||
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unload : function() { | ||
this.cache.each(function(c) { | ||
Event.stopObserving.apply(Event, c); | ||
}); | ||
this.cache = []; | ||
}, | ||
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reload: function() { | ||
var ab = Event.addBehavior; | ||
ab.unload(); | ||
ab.load(ab.rules); | ||
}, | ||
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_wrapObserver: function(observer) { | ||
return function(event) { | ||
if (observer.call(this, event) === false) event.stop(); | ||
} | ||
} | ||
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}); | ||
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Event.observe(window, 'unload', Event.addBehavior.unload.bind(Event.addBehavior)); | ||
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// A silly Prototype style shortcut for the reckless | ||
$$$ = Event.addBehavior.bind(Event); | ||
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// Behaviors can be bound to elements to provide an object orientated way of controlling elements | ||
// and their behavior. Use Behavior.create() to make a new behavior class then use attach() to | ||
// glue it to an element. Each element then gets it's own instance of the behavior and any | ||
// methods called onxxx are bound to the relevent event. | ||
// | ||
// Usage: | ||
// | ||
// var MyBehavior = Behavior.create({ | ||
// onmouseover : function() { this.element.addClassName('bong') } | ||
// }); | ||
// | ||
// Event.addBehavior({ 'a.rollover' : MyBehavior }); | ||
// | ||
// If you need to pass additional values to initialize use: | ||
// | ||
// Event.addBehavior({ 'a.rollover' : MyBehavior(10, { thing : 15 }) }) | ||
// | ||
// You can also use the attach() method. If you specify extra arguments to attach they get passed to initialize. | ||
// | ||
// MyBehavior.attach(el, values, to, init); | ||
// | ||
// Finally, the rawest method is using the new constructor normally: | ||
// var draggable = new Draggable(element, init, vals); | ||
// | ||
// Each behaviour has a collection of all its instances in Behavior.instances | ||
// | ||
var Behavior = { | ||
create: function() { | ||
var parent = null, properties = $A(arguments); | ||
if (Object.isFunction(properties[0])) | ||
parent = properties.shift(); | ||
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var behavior = function() { | ||
if (!this.initialize) { | ||
var args = $A(arguments); | ||
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return function() { | ||
var initArgs = [this].concat(args); | ||
behavior.attach.apply(behavior, initArgs); | ||
}; | ||
} else { | ||
var args = (arguments.length == 2 && arguments[1] instanceof Array) ? | ||
arguments[1] : Array.prototype.slice.call(arguments, 1); | ||
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this.element = $(arguments[0]); | ||
this.initialize.apply(this, args); | ||
behavior._bindEvents(this); | ||
behavior.instances.push(this); | ||
} | ||
}; | ||
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Object.extend(behavior, Class.Methods); | ||
Object.extend(behavior, Behavior.Methods); | ||
behavior.superclass = parent; | ||
behavior.subclasses = []; | ||
behavior.instances = []; | ||
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if (parent) { | ||
var subclass = function() { }; | ||
subclass.prototype = parent.prototype; | ||
behavior.prototype = new subclass; | ||
parent.subclasses.push(behavior); | ||
} | ||
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for (var i = 0; i < properties.length; i++) | ||
behavior.addMethods(properties[i]); | ||
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if (!behavior.prototype.initialize) | ||
behavior.prototype.initialize = Prototype.emptyFunction; | ||
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behavior.prototype.constructor = behavior; | ||
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return behavior; | ||
}, | ||
Methods : { | ||
attach : function(element) { | ||
return new this(element, Array.prototype.slice.call(arguments, 1)); | ||
}, | ||
_bindEvents : function(bound) { | ||
for (var member in bound) { | ||
var matches = member.match(/^on(.+)/); | ||
if (matches && typeof bound[member] == 'function') | ||
bound.element.observe(matches[1], Event.addBehavior._wrapObserver(bound[member].bindAsEventListener(bound))); | ||
} | ||
} | ||
} | ||
}; | ||
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Remote = Behavior.create({ | ||
initialize: function(options) { | ||
if (this.element.nodeName == 'FORM') new Remote.Form(this.element, options); | ||
else new Remote.Link(this.element, options); | ||
} | ||
}); | ||
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Remote.Base = { | ||
initialize : function(options) { | ||
this.options = Object.extend({ | ||
evaluateScripts : true | ||
}, options || {}); | ||
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this._bindCallbacks(); | ||
}, | ||
_makeRequest : function(options) { | ||
if (options.update) new Ajax.Updater(options.update, options.url, options); | ||
else new Ajax.Request(options.url, options); | ||
return false; | ||
}, | ||
_bindCallbacks: function() { | ||
$w('onCreate onComplete onException onFailure onInteractive onLoading onLoaded onSuccess').each(function(cb) { | ||
if (Object.isFunction(this.options[cb])) | ||
this.options[cb] = this.options[cb].bind(this); | ||
}.bind(this)); | ||
} | ||
} | ||
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Remote.Link = Behavior.create(Remote.Base, { | ||
onclick : function() { | ||
var options = Object.extend({ url : this.element.href, method : 'get' }, this.options); | ||
return this._makeRequest(options); | ||
} | ||
}); | ||
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Remote.Form = Behavior.create(Remote.Base, { | ||
onclick : function(e) { | ||
var sourceElement = e.element(); | ||
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if (['input', 'button'].include(sourceElement.nodeName.toLowerCase()) && | ||
sourceElement.type == 'submit') | ||
this._submitButton = sourceElement; | ||
}, | ||
onsubmit : function() { | ||
var options = Object.extend({ | ||
url : this.element.action, | ||
method : this.element.method || 'get', | ||
parameters : this.element.serialize({ submit: this._submitButton.name }) | ||
}, this.options); | ||
this._submitButton = null; | ||
return this._makeRequest(options); | ||
} | ||
}); | ||
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Observed = Behavior.create({ | ||
initialize : function(callback, options) { | ||
this.callback = callback.bind(this); | ||
this.options = options || {}; | ||
this.observer = (this.element.nodeName == 'FORM') ? this._observeForm() : this._observeField(); | ||
}, | ||
stop: function() { | ||
this.observer.stop(); | ||
}, | ||
_observeForm: function() { | ||
return (this.options.frequency) ? new Form.Observer(this.element, this.options.frequency, this.callback) : | ||
new Form.EventObserver(this.element, this.callback); | ||
}, | ||
_observeField: function() { | ||
return (this.options.frequency) ? new Form.Element.Observer(this.element, this.options.frequency, this.callback) : | ||
new Form.Element.EventObserver(this.element, this.callback); | ||
} | ||
}); |