Igor Zhukov
11 years ago
12 changed files with 412 additions and 85 deletions
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@@ -0,0 +1,321 @@
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(function () { |
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"use strict"; |
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/** |
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* Bindonce - Zero watches binding for AngularJs |
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* @version v0.3.1 |
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* @link https://github.com/Pasvaz/bindonce
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* @author Pasquale Vazzana <pasqualevazzana@gmail.com> |
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* @license MIT License, http://www.opensource.org/licenses/MIT
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*/ |
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var bindonceModule = angular.module('pasvaz.bindonce', []); |
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bindonceModule.directive('bindonce', function () |
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{ |
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var toBoolean = function (value) |
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{ |
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if (value && value.length !== 0) |
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{ |
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var v = angular.lowercase("" + value); |
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value = !(v === 'f' || v === '0' || v === 'false' || v === 'no' || v === 'n' || v === '[]'); |
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} |
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else |
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{ |
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value = false; |
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} |
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return value; |
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}; |
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var msie = parseInt((/msie (\d+)/.exec(angular.lowercase(navigator.userAgent)) || [])[1], 10); |
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if (isNaN(msie)) |
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{ |
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msie = parseInt((/trident\/.*; rv:(\d+)/.exec(angular.lowercase(navigator.userAgent)) || [])[1], 10); |
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} |
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var bindonceDirective = |
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{ |
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restrict: "AM", |
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controller: ['$scope', '$element', '$attrs', '$interpolate', function ($scope, $element, $attrs, $interpolate) |
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{ |
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var showHideBinder = function (elm, attr, value) |
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{ |
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var show = (attr === 'show') ? '' : 'none'; |
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var hide = (attr === 'hide') ? '' : 'none'; |
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elm.css('display', toBoolean(value) ? show : hide); |
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}; |
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var classBinder = function (elm, value) |
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{ |
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if (angular.isObject(value) && !angular.isArray(value)) |
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{ |
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var results = []; |
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angular.forEach(value, function (value, index) |
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{ |
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if (value) results.push(index); |
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}); |
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value = results; |
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} |
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if (value) |
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{ |
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elm.addClass(angular.isArray(value) ? value.join(' ') : value); |
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} |
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}; |
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var transclude = function (transcluder, scope) |
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{ |
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transcluder.transclude(scope, function (clone) |
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{ |
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var parent = transcluder.element.parent(); |
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var afterNode = transcluder.element && transcluder.element[transcluder.element.length - 1]; |
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var parentNode = parent && parent[0] || afterNode && afterNode.parentNode; |
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var afterNextSibling = (afterNode && afterNode.nextSibling) || null; |
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angular.forEach(clone, function (node) |
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{ |
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parentNode.insertBefore(node, afterNextSibling); |
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}); |
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}); |
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}; |
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var ctrl = |
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{ |
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watcherRemover: undefined, |
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binders: [], |
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group: $attrs.boName, |
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element: $element, |
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ran: false, |
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addBinder: function (binder) |
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{ |
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this.binders.push(binder); |
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// In case of late binding (when using the directive bo-name/bo-parent)
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// it happens only when you use nested bindonce, if the bo-children
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// are not dom children the linking can follow another order
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if (this.ran) |
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{ |
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this.runBinders(); |
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} |
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}, |
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setupWatcher: function (bindonceValue) |
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{ |
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var that = this; |
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this.watcherRemover = $scope.$watch(bindonceValue, function (newValue) |
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{ |
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if (newValue === undefined) return; |
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that.removeWatcher(); |
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that.checkBindonce(newValue); |
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}, true); |
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}, |
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checkBindonce: function (value) |
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{ |
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var that = this, promise = (value.$promise) ? value.$promise.then : value.then; |
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// since Angular 1.2 promises are no longer
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// undefined until they don't get resolved
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if (typeof promise === 'function') |
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{ |
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promise(function () |
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{ |
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that.runBinders(); |
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}); |
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} |
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else |
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{ |
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that.runBinders(); |
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} |
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}, |
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removeWatcher: function () |
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{ |
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if (this.watcherRemover !== undefined) |
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{ |
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this.watcherRemover(); |
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this.watcherRemover = undefined; |
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} |
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}, |
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runBinders: function () |
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{ |
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while (this.binders.length > 0) |
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{ |
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var binder = this.binders.shift(); |
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if (this.group && this.group != binder.group) continue; |
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var value = binder.scope.$eval((binder.interpolate) ? $interpolate(binder.value) : binder.value); |
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switch (binder.attr) |
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{ |
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case 'boIf': |
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if (toBoolean(value)) |
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{ |
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transclude(binder, binder.scope.$new()); |
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} |
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break; |
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case 'boSwitch': |
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var selectedTranscludes, switchCtrl = binder.controller[0]; |
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if ((selectedTranscludes = switchCtrl.cases['!' + value] || switchCtrl.cases['?'])) |
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{ |
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binder.scope.$eval(binder.attrs.change); |
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angular.forEach(selectedTranscludes, function (selectedTransclude) |
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{ |
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transclude(selectedTransclude, binder.scope.$new()); |
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}); |
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} |
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break; |
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case 'boSwitchWhen': |
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var ctrl = binder.controller[0]; |
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ctrl.cases['!' + binder.attrs.boSwitchWhen] = (ctrl.cases['!' + binder.attrs.boSwitchWhen] || []); |
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ctrl.cases['!' + binder.attrs.boSwitchWhen].push({ transclude: binder.transclude, element: binder.element }); |
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break; |
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case 'boSwitchDefault': |
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var ctrl = binder.controller[0]; |
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ctrl.cases['?'] = (ctrl.cases['?'] || []); |
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ctrl.cases['?'].push({ transclude: binder.transclude, element: binder.element }); |
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break; |
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case 'hide': |
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case 'show': |
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showHideBinder(binder.element, binder.attr, value); |
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break; |
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case 'class': |
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classBinder(binder.element, value); |
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break; |
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case 'text': |
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binder.element.text(value); |
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break; |
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case 'html': |
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binder.element.html(value); |
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break; |
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case 'style': |
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binder.element.css(value); |
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break; |
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case 'src': |
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binder.element.attr(binder.attr, value); |
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if (msie) binder.element.prop('src', value); |
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break; |
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case 'attr': |
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angular.forEach(binder.attrs, function (attrValue, attrKey) |
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{ |
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var newAttr, newValue; |
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if (attrKey.match(/^boAttr./) && binder.attrs[attrKey]) |
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{ |
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newAttr = attrKey.replace(/^boAttr/, '').replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); |
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newValue = binder.scope.$eval(binder.attrs[attrKey]); |
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binder.element.attr(newAttr, newValue); |
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} |
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}); |
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break; |
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case 'href': |
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case 'alt': |
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case 'title': |
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case 'id': |
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case 'value': |
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binder.element.attr(binder.attr, value); |
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break; |
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} |
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} |
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this.ran = true; |
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} |
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}; |
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return ctrl; |
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}], |
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link: function (scope, elm, attrs, bindonceController) |
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{ |
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var value = attrs.bindonce && scope.$eval(attrs.bindonce); |
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if (value !== undefined) |
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{ |
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bindonceController.checkBindonce(value); |
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} |
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else |
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{ |
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bindonceController.setupWatcher(attrs.bindonce); |
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elm.bind("$destroy", bindonceController.removeWatcher); |
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} |
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} |
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}; |
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return bindonceDirective; |
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}); |
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angular.forEach( |
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[ |
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{ directiveName: 'boShow', attribute: 'show' }, |
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{ directiveName: 'boHide', attribute: 'hide' }, |
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{ directiveName: 'boClass', attribute: 'class' }, |
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{ directiveName: 'boText', attribute: 'text' }, |
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{ directiveName: 'boBind', attribute: 'text' }, |
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{ directiveName: 'boHtml', attribute: 'html' }, |
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{ directiveName: 'boSrcI', attribute: 'src', interpolate: true }, |
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{ directiveName: 'boSrc', attribute: 'src' }, |
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{ directiveName: 'boHrefI', attribute: 'href', interpolate: true }, |
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{ directiveName: 'boHref', attribute: 'href' }, |
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{ directiveName: 'boAlt', attribute: 'alt' }, |
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{ directiveName: 'boTitle', attribute: 'title' }, |
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{ directiveName: 'boId', attribute: 'id' }, |
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{ directiveName: 'boStyle', attribute: 'style' }, |
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{ directiveName: 'boValue', attribute: 'value' }, |
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{ directiveName: 'boAttr', attribute: 'attr' }, |
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{ directiveName: 'boIf', transclude: 'element', terminal: true, priority: 1000 }, |
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{ directiveName: 'boSwitch', require: 'boSwitch', controller: function () { this.cases = {}; } }, |
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{ directiveName: 'boSwitchWhen', transclude: 'element', priority: 800, require: '^boSwitch' }, |
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{ directiveName: 'boSwitchDefault', transclude: 'element', priority: 800, require: '^boSwitch' } |
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], |
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function (boDirective) |
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{ |
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var childPriority = 200; |
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return bindonceModule.directive(boDirective.directiveName, function () |
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{ |
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var bindonceDirective = |
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{ |
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priority: boDirective.priority || childPriority, |
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transclude: boDirective.transclude || false, |
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terminal: boDirective.terminal || false, |
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require: ['^bindonce'].concat(boDirective.require || []), |
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controller: boDirective.controller, |
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compile: function (tElement, tAttrs, transclude) |
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{ |
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return function (scope, elm, attrs, controllers) |
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{ |
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var bindonceController = controllers[0]; |
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var name = attrs.boParent; |
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if (name && bindonceController.group !== name) |
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{ |
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var element = bindonceController.element.parent(); |
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bindonceController = undefined; |
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var parentValue; |
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while (element[0].nodeType !== 9 && element.length) |
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{ |
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if ((parentValue = element.data('$bindonceController')) |
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&& parentValue.group === name) |
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{ |
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bindonceController = parentValue; |
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break; |
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} |
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element = element.parent(); |
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} |
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if (!bindonceController) |
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{ |
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throw new Error("No bindonce controller: " + name); |
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} |
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} |
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bindonceController.addBinder( |
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{ |
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element: elm, |
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attr: boDirective.attribute || boDirective.directiveName, |
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attrs: attrs, |
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value: attrs[boDirective.directiveName], |
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interpolate: boDirective.interpolate, |
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group: name, |
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transclude: transclude, |
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controller: controllers.slice(1), |
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scope: scope |
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}); |
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}; |
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} |
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}; |
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return bindonceDirective; |
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}); |
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}) |
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})(); |
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