diff options
Diffstat (limited to 'framework/Web/Javascripts/extended/base.js')
| -rw-r--r-- | framework/Web/Javascripts/extended/base.js | 141 |
1 files changed, 125 insertions, 16 deletions
diff --git a/framework/Web/Javascripts/extended/base.js b/framework/Web/Javascripts/extended/base.js index d7fabdd0..d88f82db 100644 --- a/framework/Web/Javascripts/extended/base.js +++ b/framework/Web/Javascripts/extended/base.js @@ -29,15 +29,22 @@ Class.extend = function(base, definition) }
/*
- Base, version 1.0.1
+ Base, version 1.0.2
Copyright 2006, Dean Edwards
License: http://creativecommons.org/licenses/LGPL/2.1/
*/
-
-function Base() {
+/*
+var Base = function() {
+ if (arguments.length) {
+ if (this == window) { // cast an object to this class
+ Base.prototype.extend.call(arguments[0], arguments.callee.prototype);
+ } else {
+ this.extend(arguments[0]);
+ }
+ }
};
-Base.version = "1.0.1";
+Base.version = "1.0.2";
Base.prototype = {
extend: function(source, value) {
@@ -46,13 +53,16 @@ Base.prototype = { var ancestor = this[source];
// overriding?
if ((ancestor instanceof Function) && (value instanceof Function) &&
- ancestor.valueOf() != value.valueOf() && /\binherit\b/.test(value)) {
+ ancestor.valueOf() != value.valueOf() && /\bbase\b/.test(value)) {
var method = value;
+ // var _prototype = this.constructor.prototype;
+ // var fromPrototype = !Base._prototyping && _prototype[source] == ancestor;
value = function() {
- var previous = this.inherit;
- this.inherit = ancestor;
+ var previous = this.base;
+ // this.base = fromPrototype ? _prototype[source] : ancestor;
+ this.base = ancestor;
var returnValue = method.apply(this, arguments);
- this.inherit = previous;
+ this.base = previous;
return returnValue;
};
// point to the underlying method
@@ -85,18 +95,14 @@ Base.prototype = { return this;
},
- inherit: function() {
+ base: function() {
// call this method from any other method to invoke that method's ancestor
}
};
-Base.extend = function(_instance, _static) {
+Base.extend = function(_instance, _static) {
var extend = Base.prototype.extend;
if (!_instance) _instance = {};
- // create the constructor
- if (_instance.constructor == Object) {
- _instance.constructor = new Function;
- }
// build the prototype
Base._prototyping = true;
var _prototype = new this;
@@ -112,13 +118,116 @@ Base.extend = function(_instance, _static) { klass.prototype = _prototype;
// build the class interface
klass.extend = this.extend;
+ klass.implement = this.implement;
klass.toString = function() {
return String(constructor);
};
extend.call(klass, _static);
- // support singletons
+ // single instance
var object = constructor ? klass : _prototype;
// class initialisation
if (object.init instanceof Function) object.init();
return object;
-};
\ No newline at end of file +};
+
+Base.implement = function(_interface) {
+ if (_interface instanceof Function) _interface = _interface.prototype;
+ this.prototype.extend(_interface);
+};
+*/
+
+/*
+ * Signals and Slots for Prototype: Easy custom javascript events
+ * http://tetlaw.id.au/view/blog/signals-and-slots-for-prototype-easy-custom-javascript-events
+ * Andrew Tetlaw
+ * Version 1 (2006-05-03)
+ *
+ * http://creativecommons.org/licenses/by-sa/2.5/
+ */
+Signal = {
+ throwErrors : true,
+ MT : function(){ return true },
+ connect : function(obj1, func1, obj2, func2, options) {
+ var options = Object.extend({
+ connectOnce : false
+ }, options || {});
+ if(typeof func1 != 'string' || typeof func2 != 'string') return;
+
+ var sigObj = obj1 || window;
+ var slotObj = obj2 || window;
+ var signame = func1+'__signal_';
+ var slotsname = func1+'__slots_';
+ if(!sigObj[signame]) {
+ // having the slotFunc in a var and setting it by using an anonymous function in this way
+ // is apparently a good way to prevent memory leaks in IE if the objects are DOM nodes.
+ var slotFunc = function() {
+ var args = arguments;
+ var result = sigObj[signame].apply(sigObj,args);
+ sigObj[slotsname].each(function(slot){
+ try {
+ if(slot && slot[0]) { // testing for null, a disconnect may have nulled this slot
+ slot[0][slot[1]].apply(slot[0],args); //[0] = obj, [1] = func name
+ }
+ } catch(e) {
+ if(Signal.throwErrors) throw e;
+ }
+ });
+ return result;
+ };
+ (function() {
+ sigObj[slotsname] = $A([]);
+ sigObj[signame] = sigObj[func1] || Signal.MT;
+ sigObj[func1] = slotFunc;
+ })();
+ }
+ var con = (sigObj[slotsname].length > 0) ?
+ (options.connectOnce ? !sigObj[slotsname].any(function(slot) { return (slot[0] == slotObj && slot[1] == func2) }) : true) :
+ true;
+ if(con) {
+ sigObj[slotsname].push([slotObj,func2]);
+ }
+ },
+ connectOnce : function(obj1, func1, obj2, func2, options) {
+ Signal.connect(obj1, func1, obj2, func2, Object.extend(options || {}, {connectOnce : true}))
+ },
+ disconnect : function(obj1, func1, obj2, func2, options) {
+ var options = Object.extend({
+ disconnectAll : false
+ }, options || {});
+ if(typeof func1 != 'string' || typeof func2 != 'string') return;
+
+ var sigObj = obj1 || window;
+ var slotObj = obj2 || window;
+ var signame = func1+'__signal_';
+ var slotsname = func1+'__slots_';
+
+ // I null them in this way so that any currectly active signal will read a null slot,
+ // otherwise the slot will be applied even though it's been disconnected
+ if(sigObj[slotsname]) {
+ if(options.disconnectAll) {
+ sigObj[slotsname] = sigObj[slotsname].collect(function(slot) {
+ if(slot[0] == slotObj && slot[1] == func2) {
+ slot[0] = null;
+ return null;
+ } else {
+ return slot;
+ }
+ }).compact();
+ } else {
+ var idx = -1;
+ sigObj[slotsname] = sigObj[slotsname].collect(function(slot, index) {
+ if(slot[0] == slotObj && slot[1] == func2 && idx < 0) { //disconnect first match
+ idx = index;
+ slot[0] = null;
+ return null;
+ } else {
+ return slot;
+ }
+ }).compact();
+ }
+ }
+ },
+ disconnectAll : function(obj1, func1, obj2, func2, options) {
+ Signal.disconnect(obj1, func1, obj2, func2, Object.extend(options || {}, {disconnectAll : true}))
+ }
+}
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