diff options
Diffstat (limited to 'src/Scope.js')
| -rw-r--r-- | src/Scope.js | 312 |
1 files changed, 157 insertions, 155 deletions
diff --git a/src/Scope.js b/src/Scope.js index 45dd15a4..7e477ec5 100644 --- a/src/Scope.js +++ b/src/Scope.js @@ -1,6 +1,4 @@ -// Copyright (C) 2009 BRAT Tech LLC - -nglr.Scope = function(initialState, name) { +function Scope(initialState, name) { this.widgets = []; this.watchListeners = {}; this.name = name; @@ -8,39 +6,14 @@ nglr.Scope = function(initialState, name) { var State = function(){}; State.prototype = initialState; this.state = new State(); - this.state.$parent = initialState; + this.state['$parent'] = initialState; if (name == "ROOT") { - this.state.$root = this.state; + this.state['$root'] = this.state; } }; -nglr.Scope.expressionCache = {}; - -nglr.Scope.prototype.updateView = function() { - var self = this; - this.fireWatchers(); - _.each(this.widgets, function(widget){ - self.evalWidget(widget, "", {}, function(){ - this.updateView(self); - }); - }); -}; - -nglr.Scope.prototype.addWidget = function(controller) { - if (controller) this.widgets.push(controller); -}; - -nglr.Scope.prototype.isProperty = function(exp) { - for ( var i = 0; i < exp.length; i++) { - var ch = exp.charAt(i); - if (ch!='.' && !nglr.Lexer.prototype.isIdent(ch)) { - return false; - } - } - return true; -}; - -nglr.Scope.getter = function(instance, path) { +Scope.expressionCache = {}; +Scope.getter = function(instance, path) { if (!path) return instance; var element = path.split('.'); var key; @@ -55,7 +28,7 @@ nglr.Scope.getter = function(instance, path) { instance = instance[key]; } if (_.isUndefined(instance) && key.charAt(0) == '$') { - var type = angular.Global.typeOf(lastInstance); + var type = angular['Global']['typeOf'](lastInstance); type = angular[type.charAt(0).toUpperCase()+type.substring(1)]; var fn = type ? type[[key.substring(1)]] : undefined; if (fn) { @@ -64,135 +37,164 @@ nglr.Scope.getter = function(instance, path) { } } } - if (typeof instance === 'function' && !instance.$$factory) { - return nglr.bind(lastInstance, instance); + if (typeof instance === 'function' && !instance['$$factory']) { + return bind(lastInstance, instance); } return instance; }; -nglr.Scope.prototype.get = function(path) { - return nglr.Scope.getter(this.state, path); -}; - -nglr.Scope.prototype.set = function(path, value) { - var element = path.split('.'); - var instance = this.state; - for ( var i = 0; element.length > 1; i++) { - var key = element.shift(); - var newInstance = instance[key]; - if (!newInstance) { - newInstance = {}; - instance[key] = newInstance; +Scope.prototype = { + updateView: function() { + var self = this; + this.fireWatchers(); + _.each(this.widgets, function(widget){ + self.evalWidget(widget, "", {}, function(){ + this.updateView(self); + }); + }); + }, + + addWidget: function(controller) { + if (controller) this.widgets.push(controller); + }, + + isProperty: function(exp) { + for ( var i = 0; i < exp.length; i++) { + var ch = exp.charAt(i); + if (ch!='.' && !Lexer.prototype.isIdent(ch)) { + return false; + } } - instance = newInstance; - } - instance[element.shift()] = value; - return value; -}; - -nglr.Scope.prototype.setEval = function(expressionText, value) { - this.eval(expressionText + "=" + nglr.toJson(value)); -}; - -nglr.Scope.prototype.eval = function(expressionText, context) { - var expression = nglr.Scope.expressionCache[expressionText]; - if (!expression) { - var parser = new nglr.Parser(expressionText); - expression = parser.statements(); - parser.assertAllConsumed(); - nglr.Scope.expressionCache[expressionText] = expression; - } - context = context || {}; - context.scope = this; - return expression(context); -}; - -//TODO: Refactor. This function needs to be an execution closure for widgets -// move to widgets -// remove expression, just have inner closure. -nglr.Scope.prototype.evalWidget = function(widget, expression, context, onSuccess, onFailure) { - try { - var value = this.eval(expression, context); - if (widget.hasError) { - widget.hasError = false; - jQuery(widget.view). - removeClass('ng-exception'). - removeAttr('ng-error'); + return true; + }, + + get: function(path) { +// log('SCOPE.get', path, Scope.getter(this.state, path)); + return Scope.getter(this.state, path); + }, + + set: function(path, value) { +// log('SCOPE.set', path, value); + var element = path.split('.'); + var instance = this.state; + for ( var i = 0; element.length > 1; i++) { + var key = element.shift(); + var newInstance = instance[key]; + if (!newInstance) { + newInstance = {}; + instance[key] = newInstance; + } + instance = newInstance; } - if (onSuccess) { - value = onSuccess.apply(widget, [value]); + instance[element.shift()] = value; + return value; + }, + + setEval: function(expressionText, value) { + this.eval(expressionText + "=" + toJson(value)); + }, + + eval: function(expressionText, context) { + log('Scope.eval', expressionText); + var expression = Scope.expressionCache[expressionText]; + if (!expression) { + var parser = new Parser(expressionText); + expression = parser.statements(); + parser.assertAllConsumed(); + Scope.expressionCache[expressionText] = expression; } - return true; - } catch (e){ - console.error('Eval Widget Error:', e); - var jsonError = nglr.toJson(e, true); - widget.hasError = true; - jQuery(widget.view). - addClass('ng-exception'). - attr('ng-error', jsonError); - if (onFailure) { - onFailure.apply(widget, [e, jsonError]); + context = context || {}; + context.scope = this; + return expression(context); + }, + + //TODO: Refactor. This function needs to be an execution closure for widgets + // move to widgets + // remove expression, just have inner closure. + evalWidget: function(widget, expression, context, onSuccess, onFailure) { + try { + var value = this.eval(expression, context); + if (widget.hasError) { + widget.hasError = false; + jQuery(widget.view). + removeClass('ng-exception'). + removeAttr('ng-error'); + } + if (onSuccess) { + value = onSuccess.apply(widget, [value]); + } + return true; + } catch (e){ + error('Eval Widget Error:', e); + var jsonError = toJson(e, true); + widget.hasError = true; + jQuery(widget.view). + addClass('ng-exception'). + attr('ng-error', jsonError); + if (onFailure) { + onFailure.apply(widget, [e, jsonError]); + } + return false; } - return false; - } -}; - -nglr.Scope.prototype.validate = function(expressionText, value) { - var expression = nglr.Scope.expressionCache[expressionText]; - if (!expression) { - expression = new nglr.Parser(expressionText).validator(); - nglr.Scope.expressionCache[expressionText] = expression; - } - var self = {scope:this}; - return expression(self)(self, value); -}; - -nglr.Scope.prototype.entity = function(entityDeclaration) { - var expression = new nglr.Parser(entityDeclaration).entityDeclaration(); - return expression({scope:this}); -}; - -nglr.Scope.prototype.markInvalid = function(widget) { - this.state.$invalidWidgets.push(widget); -}; - -nglr.Scope.prototype.watch = function(declaration) { - var self = this; - new nglr.Parser(declaration).watch()({ - scope:this, - addListener:function(watch, exp){ - self.addWatchListener(watch, function(n,o){ - try { - return exp({scope:self}, n, o); - } catch(e) { - nglr.alert(e); - } - }); + }, + + validate: function(expressionText, value) { + var expression = Scope.expressionCache[expressionText]; + if (!expression) { + expression = new Parser(expressionText).validator(); + Scope.expressionCache[expressionText] = expression; } - }); -}; - -nglr.Scope.prototype.addWatchListener = function(watchExpression, listener) { - var watcher = this.watchListeners[watchExpression]; - if (!watcher) { - watcher = {listeners:[], expression:watchExpression}; - this.watchListeners[watchExpression] = watcher; - } - watcher.listeners.push(listener); -}; - -nglr.Scope.prototype.fireWatchers = function() { - var self = this; - var fired = false; - jQuery.each(this.watchListeners, function(name, watcher) { - var value = self.eval(watcher.expression); - if (value !== watcher.lastValue) { - jQuery.each(watcher.listeners, function(i, listener){ - listener(value, watcher.lastValue); - fired = true; - }); - watcher.lastValue = value; + var self = {scope:this}; + return expression(self)(self, value); + }, + + entity: function(entityDeclaration, datastore) { + var expression = new Parser(entityDeclaration).entityDeclaration(); + return expression({scope:this, datastore:datastore}); + }, + + markInvalid: function(widget) { + this.state['$invalidWidgets'].push(widget); + }, + + watch: function(declaration) { + var self = this; + new Parser(declaration).watch()({ + scope:this, + addListener:function(watch, exp){ + self.addWatchListener(watch, function(n,o){ + try { + return exp({scope:self}, n, o); + } catch(e) { + alert(e); + } + }); + } + }); + }, + + addWatchListener: function(watchExpression, listener) { + var watcher = this.watchListeners[watchExpression]; + if (!watcher) { + watcher = {listeners:[], expression:watchExpression}; + this.watchListeners[watchExpression] = watcher; } - }); - return fired; -}; + watcher.listeners.push(listener); + }, + + fireWatchers: function() { + var self = this; + var fired = false; + foreach(this.watchListeners, function(watcher) { + var value = self.eval(watcher.expression); + if (value !== watcher.lastValue) { + foreach(watcher.listeners, function(listener){ + listener(value, watcher.lastValue); + fired = true; + }); + watcher.lastValue = value; + } + }); + return fired; + } +};
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