aboutsummaryrefslogtreecommitdiffstats
path: root/src/Scope.js
diff options
context:
space:
mode:
Diffstat (limited to 'src/Scope.js')
-rw-r--r--src/Scope.js278
1 files changed, 15 insertions, 263 deletions
diff --git a/src/Scope.js b/src/Scope.js
index ccf55077..6ba6aa8e 100644
--- a/src/Scope.js
+++ b/src/Scope.js
@@ -1,253 +1,3 @@
-function Scope(initialState, name) {
- var self = this;
- self.widgets = [];
- self.evals = [];
- self.watchListeners = {};
- self.name = name;
- initialState = initialState || {};
- var State = function(){};
- State.prototype = initialState;
- self.state = new State();
- extend(self.state, {
- '$parent': initialState,
- '$watch': bind(self, self.addWatchListener),
- '$eval': bind(self, self.eval),
- '$bind': bind(self, bind, self),
- // change name to autoEval?
- '$addEval': bind(self, self.addEval),
- '$updateView': bind(self, self.updateView)
- });
- if (name == "ROOT") {
- self.state['$root'] = self.state;
- }
-};
-
-Scope.expressionCache = {};
-Scope.getter = function(instance, path) {
- if (!path) return instance;
- var element = path.split('.');
- var key;
- var lastInstance = instance;
- var len = element.length;
- for ( var i = 0; i < len; i++) {
- key = element[i];
- if (!key.match(/^[\$\w][\$\w\d]*$/))
- throw "Expression '" + path + "' is not a valid expression for accesing variables.";
- if (instance) {
- lastInstance = instance;
- instance = instance[key];
- }
- if (_.isUndefined(instance) && key.charAt(0) == '$') {
- 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) {
- instance = _.bind(fn, lastInstance, lastInstance);
- return instance;
- }
- }
- }
- if (typeof instance === 'function' && !instance['$$factory']) {
- return bind(lastInstance, instance);
- }
- return instance;
-};
-
-Scope.setter = function(instance, path, value){
- var element = path.split('.');
- for ( var i = 0; element.length > 1; i++) {
- var key = element.shift();
- var newInstance = instance[key];
- if (!newInstance) {
- newInstance = {};
- instance[key] = newInstance;
- }
- instance = newInstance;
- }
- instance[element.shift()] = value;
- return value;
-};
-
-Scope.prototype = {
- // TODO: rename to update? or eval?
- updateView: function() {
- var self = this;
- this.fireWatchers();
- foreach(this.widgets, function(widget){
- self.evalWidget(widget, "", {}, function(){
- this.updateView(self);
- });
- });
- foreach(this.evals, bind(this, this.apply));
- },
-
- addWidget: function(controller) {
- if (controller) this.widgets.push(controller);
- },
-
- addEval: function(fn, listener) {
- // todo: this should take a function/string and a listener
- // todo: this is a hack, which will need to be cleaned up.
- var self = this,
- listenFn = listener || noop,
- expr = self.compile(fn);
- this.evals.push(function(){
- self.apply(listenFn, expr());
- });
- },
-
- isProperty: function(exp) {
- for ( var i = 0; i < exp.length; i++) {
- var ch = exp.charAt(i);
- if (ch!='.' && !Lexer.prototype.isIdent(ch)) {
- return false;
- }
- }
- 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 instance = this.state;
- return Scope.setter(instance, path, value);
- },
-
- setEval: function(expressionText, value) {
- this.eval(expressionText + "=" + toJson(value));
- },
-
- compile: function(exp) {
- if (isFunction(exp)) return bind(this.state, exp);
- var expFn = Scope.expressionCache[exp], self = this;
- if (!expFn) {
- var parser = new Parser(exp);
- expFn = parser.statements();
- parser.assertAllConsumed();
- Scope.expressionCache[exp] = expFn;
- }
- return function(context){
- context = context || {};
- context.self = self.state;
- context.scope = self;
- return expFn.call(self, context);
- };
- },
-
- eval: function(exp, context) {
-// log('Scope.eval', expressionText);
- return this.compile(exp)(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){
- var jsonError = toJson(e, true);
- error('Eval Widget Error:', jsonError);
- widget.hasError = true;
- jQuery(widget.view).
- addClass('ng-exception').
- attr('ng-error', jsonError);
- if (onFailure) {
- onFailure.apply(widget, [e, jsonError]);
- }
- return false;
- }
- },
-
- validate: function(expressionText, value, element) {
- var expression = Scope.expressionCache[expressionText];
- if (!expression) {
- expression = new Parser(expressionText).validator();
- Scope.expressionCache[expressionText] = expression;
- }
- var self = {scope:this, self:this.state, '$element':element};
- return expression(self)(self, value);
- },
-
- entity: function(entityDeclaration, datastore) {
- var expression = new Parser(entityDeclaration).entityDeclaration();
- return expression({scope:this, datastore:datastore});
- },
-
- clearInvalid: function() {
- var invalid = this.state['$invalidWidgets'];
- while(invalid.length > 0) {invalid.pop();}
- },
-
- markInvalid: function(widget) {
- this.state['$invalidWidgets'].push(widget);
- },
-
- watch: function(declaration) {
- var self = this;
- new Parser(declaration).watch()({
- scope:this,
- addListener:function(watch, exp){
- self.addWatchListener(watch, function(n,o){
- try {
- return exp({scope:self}, n, o);
- } catch(e) {
- alert(e);
- }
- });
- }
- });
- },
-
- addWatchListener: function(watchExpression, listener) {
- // TODO: clean me up!
- if (!isFunction(listener)) {
- listener = this.compile(listener);
- }
- var watcher = this.watchListeners[watchExpression];
- if (!watcher) {
- watcher = {listeners:[], expression:watchExpression};
- this.watchListeners[watchExpression] = watcher;
- }
- watcher.listeners.push(listener);
- },
-
- fireWatchers: function() {
- var self = this, fired = false;
- foreach(this.watchListeners, function(watcher) {
- var value = self.eval(watcher.expression);
- if (value !== watcher.lastValue) {
- foreach(watcher.listeners, function(listener){
- listener(value, watcher.lastValue);
- fired = true;
- });
- watcher.lastValue = value;
- }
- });
- return fired;
- },
-
- apply: function(fn) {
- fn.apply(this.state, slice.call(arguments, 1, arguments.length));
- }
-};
-
-//////////////////////////////
-
function getter(instance, path) {
if (!path) return instance;
var element = path.split('.');
@@ -262,12 +12,12 @@ function getter(instance, path) {
lastInstance = instance;
instance = instance[key];
}
- if (_.isUndefined(instance) && key.charAt(0) == '$') {
+ if (isUndefined(instance) && key.charAt(0) == '$') {
var type = angular['Global']['typeOf'](lastInstance);
type = angular[type.charAt(0).toUpperCase()+type.substring(1)];
var fn = type ? type[[key.substring(1)]] : undefined;
if (fn) {
- instance = _.bind(fn, lastInstance, lastInstance);
+ instance = bind(fn, lastInstance, lastInstance);
return instance;
}
}
@@ -303,24 +53,26 @@ function expressionCompile(exp){
parser.assertAllConsumed();
compileCache[exp] = expFn;
}
- // return expFn
- // TODO(remove this hack)
+ return parserNewScopeAdapter(expFn);
+};
+
+// return expFn
+// TODO(remove this hack)
+function parserNewScopeAdapter(fn) {
return function(){
- return expFn({
+ return fn({
scope: {
set: this.$set,
get: this.$get
}
});
};
-};
-
-var NON_RENDERABLE_ELEMENTS = {
- '#text': 1, '#comment':1, 'TR':1, 'TH':1
-};
+}
-function isRenderableElement(element){
- return element && element[0] && !NON_RENDERABLE_ELEMENTS[element[0].nodeName];
+function isRenderableElement(element) {
+ var name = element && element[0] && element[0].nodeName;
+ return name && name.charAt(0) != '#' &&
+ !includes(['TR', 'COL', 'COLGROUP', 'TBODY', 'THEAD', 'TFOOT'], name);
}
function rethrow(e) { throw e; }
@@ -334,7 +86,7 @@ function errorHandlerFor(element) {
};
}
-function scope(parent, Class) {
+function createScope(parent, Class) {
function Parent(){}
function API(){}
function Behavior(){}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-01 02:08:59 +0000