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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,270 @@ | ||
| 'use strict'; | ||
| /** | ||
| * Bindonce - Zero watches binding for AngularJs | ||
| * @version v0.2.1 - 2013-05-07 | ||
| * @link https://github.com/Pasvaz/bindonce | ||
| * @author Pasquale Vazzana <[email protected]> | ||
| * @license MIT License, http://www.opensource.org/licenses/MIT | ||
| */ | ||
|
|
||
| angular.module('pasvaz.bindonce', []) | ||
|
|
||
| .directive('bindonce', function() | ||
| { | ||
| console.log('called'); | ||
| var toBoolean = function(value) | ||
| { | ||
| if (value && value.length !== 0) | ||
| { | ||
| var v = angular.lowercase("" + value); | ||
| value = !(v == 'f' || v == '0' || v == 'false' || v == 'no' || v == 'n' || v == '[]'); | ||
| } | ||
| else | ||
| { | ||
| value = false; | ||
| } | ||
| return value; | ||
| } | ||
|
|
||
| var msie = parseInt((/msie (\d+)/.exec(angular.lowercase(navigator.userAgent)) || [])[1], 10); | ||
| if (isNaN(msie)) | ||
| { | ||
| msie = parseInt((/trident\/.*; rv:(\d+)/.exec(angular.lowercase(navigator.userAgent)) || [])[1], 10); | ||
| } | ||
|
|
||
| var bindonceDirective = | ||
| { | ||
| restrict: "AM", | ||
| controller: ['$scope', '$element', '$attrs', '$interpolate', function($scope, $element, $attrs, $interpolate) | ||
| { | ||
| var showHideBinder = function(elm, attr, value) | ||
| { | ||
| var show = (attr == 'show') ? '' : 'none'; | ||
| var hide = (attr == 'hide') ? '' : 'none'; | ||
| elm.css('display', toBoolean(value) ? show : hide); | ||
| } | ||
| var classBinder = function(elm, value) | ||
| { | ||
| if (angular.isObject(value) && !angular.isArray(value)) | ||
| { | ||
| var results = []; | ||
| angular.forEach(value, function(value, index) | ||
| { | ||
| if (value) results.push(index); | ||
| }); | ||
| value = results; | ||
| } | ||
| if (value) | ||
| { | ||
| elm.addClass(angular.isArray(value) ? value.join(' ') : value); | ||
| } | ||
| } | ||
|
|
||
| var ctrl = | ||
| { | ||
| watcherRemover : undefined, | ||
| binders : [], | ||
| group : $attrs.boName, | ||
| element : $element, | ||
| ran : false, | ||
|
|
||
| addBinder : function(binder) | ||
| { | ||
| this.binders.push(binder); | ||
|
|
||
| // In case of late binding (when using the directive bo-name/bo-parent) | ||
| // it happens only when you use nested bindonce, if the bo-children | ||
| // are not dom children the linking can follow another order | ||
| if (this.ran) | ||
| { | ||
| this.runBinders(); | ||
| } | ||
| }, | ||
|
|
||
| setupWatcher : function(bindonceValue) | ||
| { | ||
| var that = this; | ||
| this.watcherRemover = $scope.$watch(bindonceValue, function(newValue) | ||
| { | ||
| if (newValue == undefined) return; | ||
| that.removeWatcher(); | ||
| that.runBinders(); | ||
| }, true); | ||
| }, | ||
|
|
||
| removeWatcher : function() | ||
| { | ||
| if (this.watcherRemover != undefined) | ||
| { | ||
| this.watcherRemover(); | ||
| this.watcherRemover = undefined; | ||
| } | ||
| }, | ||
|
|
||
| runBinders : function() | ||
| { | ||
| var i, max; | ||
| for (i = 0, max = this.binders.length; i < max; i ++) | ||
| { | ||
| var binder = this.binders[i]; | ||
| if (this.group && this.group != binder.group ) continue; | ||
| var value = binder.scope.$eval((binder.interpolate) ? $interpolate(binder.value) : binder.value); | ||
| switch(binder.attr) | ||
| { | ||
| case 'if': | ||
| if (toBoolean(value)) | ||
| { | ||
| binder.transclude(binder.scope.$new(), function (clone) | ||
| { | ||
| var parent = binder.element.parent(); | ||
| var afterNode = binder.element && binder.element[binder.element.length - 1]; | ||
| var parentNode = parent && parent[0] || afterNode && afterNode.parentNode; | ||
| var afterNextSibling = (afterNode && afterNode.nextSibling) || null; | ||
| angular.forEach(clone, function(node) | ||
| { | ||
| parentNode.insertBefore(node, afterNextSibling); | ||
| }); | ||
| }); | ||
| } | ||
| break; | ||
| case 'hide': | ||
| case 'show': | ||
| showHideBinder(binder.element, binder.attr, value); | ||
| break; | ||
| case 'class': | ||
| classBinder(binder.element, value); | ||
| break; | ||
| case 'text': | ||
| binder.element.text(value); | ||
| break; | ||
| case 'html': | ||
| binder.element.html(value); | ||
| break; | ||
| case 'style': | ||
| binder.element.css(value); | ||
| break; | ||
| case 'src': | ||
| binder.element.attr(binder.attr, value); | ||
| if (msie) binder.element.prop('src', value); | ||
| case 'attr': | ||
| angular.forEach(binder.attrs, function(attrValue, attrKey) | ||
| { | ||
| var newAttr, newValue; | ||
| if (attrKey.match(/^boAttr./) && binder.attrs[attrKey]) | ||
| { | ||
| newAttr = attrKey.replace(/^boAttr/, '').replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); | ||
| newValue = binder.scope.$eval(binder.attrs[attrKey]); | ||
| binder.element.attr(newAttr, newValue); | ||
| } | ||
| }); | ||
| break; | ||
| case 'href': | ||
| case 'alt': | ||
| case 'title': | ||
| case 'id': | ||
| case 'value': | ||
| binder.element.attr(binder.attr, value); | ||
| break; | ||
| } | ||
| } | ||
| this.ran = true; | ||
| this.binders = []; | ||
| } | ||
| } | ||
|
|
||
| return ctrl; | ||
| }], | ||
|
|
||
| link: function(scope, elm, attrs, bindonceController) | ||
| { | ||
| var value = (attrs.bindonce) ? scope.$eval(attrs.bindonce) : true; | ||
| if (value != undefined) | ||
| { | ||
| bindonceController.runBinders(); | ||
| } | ||
| else | ||
| { | ||
| bindonceController.setupWatcher(attrs.bindonce); | ||
| elm.bind("$destroy", bindonceController.removeWatcher); | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| return bindonceDirective; | ||
| }); | ||
|
|
||
| angular.forEach( | ||
| [ | ||
| {directiveName:'boShow', attribute: 'show'}, | ||
| {directiveName:'boIf', attribute: 'if', transclude: 'element', terminal: true, priority:1000}, | ||
| {directiveName:'boHide', attribute:'hide'}, | ||
| {directiveName:'boClass', attribute:'class'}, | ||
| {directiveName:'boText', attribute:'text'}, | ||
| {directiveName:'boHtml', attribute:'html'}, | ||
| {directiveName:'boSrcI', attribute:'src', interpolate:true}, | ||
| {directiveName:'boSrc', attribute:'src'}, | ||
| {directiveName:'boHrefI', attribute:'href', interpolate:true}, | ||
| {directiveName:'boHref', attribute:'href'}, | ||
| {directiveName:'boAlt', attribute:'alt'}, | ||
| {directiveName:'boTitle', attribute:'title'}, | ||
| {directiveName:'boId', attribute:'id'}, | ||
| {directiveName:'boStyle', attribute:'style'}, | ||
| {directiveName:'boValue', attribute:'value'}, | ||
| {directiveName:'boAttr', attribute:'attr'} | ||
| ], | ||
| function(boDirective) | ||
| { | ||
| var childPriority = 200; | ||
| return angular.module('pasvaz.bindonce').directive(boDirective.directiveName, function() | ||
| { | ||
| var bindonceDirective = | ||
| { | ||
| priority: boDirective.priority || childPriority, | ||
| transclude: boDirective.transclude || false, | ||
| terminal: boDirective.terminal || false, | ||
| require: '^bindonce', | ||
| compile: function (tElement, tAttrs, transclude) | ||
| { | ||
| return function(scope, elm, attrs, bindonceController) | ||
| { | ||
| var name = attrs.boParent; | ||
| if (name && bindonceController.group != name) | ||
| { | ||
| var element = bindonceController.element.parent(); | ||
| bindonceController = undefined; | ||
| var parentValue; | ||
|
|
||
| while (element[0].nodeType != 9 && element.length) | ||
| { | ||
| if ((parentValue = element.data('$bindonceController')) | ||
| && parentValue.group == name) | ||
| { | ||
| bindonceController = parentValue | ||
| break; | ||
| } | ||
| element = element.parent(); | ||
| } | ||
| if (!bindonceController) | ||
| { | ||
| throw Error("No bindonce controller: " + name); | ||
| } | ||
| } | ||
|
|
||
| bindonceController.addBinder( | ||
| { | ||
| element : elm, | ||
| attr : boDirective.attribute, | ||
| attrs : attrs, | ||
| value : attrs[boDirective.directiveName], | ||
| interpolate : boDirective.interpolate, | ||
| group : name, | ||
| transclude : transclude, | ||
| scope : scope | ||
| }); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return bindonceDirective; | ||
| }); | ||
| }); |