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directives.js
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'use strict';
angular.module('JSONedit', ['ui.sortable'])
.directive('ngModelOnblur', function() {
// override the default input to update on blur
// from http://jsfiddle.net/cn8VF/
return {
restrict: 'A',
require: 'ngModel',
link: function(scope, elm, attr, ngModelCtrl) {
if (attr.type === 'radio' || attr.type === 'checkbox') return;
elm.unbind('input').unbind('keydown').unbind('change');
elm.bind('blur', function() {
scope.$apply(function() {
ngModelCtrl.$setViewValue(elm.val());
});
});
}
};
})
.directive('json', ["$compile", function($compile) {
return {
restrict: 'E',
scope: {
child: '=',
type: '@',
defaultCollapsed: '='
},
link: function(scope, element, attributes) {
var stringName = "Text";
var objectName = "Object";
var arrayName = "Array";
var refName = "Reference";
var boolName = "Boolean";
var numberName = "Number";
scope.valueTypes = [stringName, objectName, arrayName, refName, boolName, numberName];
scope.sortableOptions = {
axis: 'y'
};
if (scope.$parent.defaultCollapsed === undefined) {
scope.collapsed = false;
} else {
scope.collapsed = scope.defaultCollapsed;
}
if (scope.collapsed) {
scope.chevron = "glyphicon-chevron-right";
} else {
scope.chevron = "glyphicon-chevron-down";
}
//////
// Helper functions
//////
var getType = function(obj) {
var type = Object.prototype.toString.call(obj);
if (type === "[object Object]") {
return "Object";
} else if(type === "[object Array]"){
return "Array";
} else if(type === "[object Boolean]"){
return "Boolean";
} else if(type === "[object Number]"){
return "Number";
} else {
return "Literal";
}
};
var isNumber = function(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
};
scope.getType = function(obj) {
return getType(obj);
};
scope.toggleCollapse = function() {
if (scope.collapsed) {
scope.collapsed = false;
scope.chevron = "glyphicon-chevron-down";
} else {
scope.collapsed = true;
scope.chevron = "glyphicon-chevron-right";
}
};
scope.moveKey = function(obj, key, newkey) {
//moves key to newkey in obj
if (key !== newkey) {
obj[newkey] = obj[key];
delete obj[key];
}
};
scope.deleteKey = function(obj, key) {
if (getType(obj) == "Object") {
if( confirm('Delete "'+key+'" and all it contains?') ) {
delete obj[key];
}
} else if (getType(obj) == "Array") {
if( confirm('Delete "'+obj[key]+'"?') ) {
obj.splice(key, 1);
}
} else {
console.error("object to delete from was " + obj);
}
};
scope.addItem = function(obj) {
if (getType(obj) == "Object") {
// check input for key
if (scope.keyName == undefined || scope.keyName.length == 0){
alert("Please fill in a name");
} else if (scope.keyName.indexOf("$") == 0){
alert("The name may not start with $ (the dollar sign)");
} else if (scope.keyName.indexOf("_") == 0){
alert("The name may not start with _ (the underscore)");
} else {
if (obj[scope.keyName]) {
if( !confirm('An item with the name "'+scope.keyName
+'" exists already. Do you really want to replace it?') ) {
return;
}
}
if (scope.valueType == numberName && !isNumber(scope.valueName)){
alert("Please fill in a number");
return;
}
// add item to object
switch(scope.valueType) {
case stringName: obj[scope.keyName] = scope.valueName ? scope.valueName : "";
break;
case numberName: obj[scope.keyName] = scope.possibleNumber(scope.valueName);
break;
case objectName: obj[scope.keyName] = {};
break;
case arrayName: obj[scope.keyName] = [];
break;
case refName: obj[scope.keyName] = {"Reference!!!!": "todo"};
break;
case boolName: obj[scope.keyName] = false;
break;
}
//clean-up
scope.keyName = "";
scope.valueName = "";
scope.showAddKey = false;
}
} else if (getType(obj) == "Array") {
if (scope.valueType == numberName && !isNumber(scope.valueName)){
alert("Please fill in a number");
return;
}
// add item to array
switch(scope.valueType) {
case stringName: obj.push(scope.valueName ? scope.valueName : "");
break;
case numberName: obj.push(scope.possibleNumber(scope.valueName));
break;
case objectName: obj.push({});
break;
case arrayName: obj.push([]);
break;
case boolName: obj.push(false);
break;
case refName: obj.push({"Reference!!!!": "todo"});
break;
}
scope.valueName = "";
scope.showAddKey = false;
} else {
console.error("object to add to was " + obj);
}
};
scope.possibleNumber = function(val) {
return isNumber(val) ? parseFloat(val) : val;
};
//////
// Template Generation
//////
// Note:
// sometimes having a different ng-model and then saving it on ng-change
// into the object or array is necessary for all updates to work
// recursion
var switchTemplate =
'<span ng-switch on="getType(val)" >'
+ '<json ng-switch-when="Object" child="val" type="object" default-collapsed="defaultCollapsed"></json>'
+ '<json ng-switch-when="Array" child="val" type="array" default-collapsed="defaultCollapsed"></json>'
+ '<span ng-switch-when="Boolean" type="boolean">'
+ '<input type="checkbox" ng-model="val" ng-model-onblur ng-change="child[key] = val">'
+ '</span>'
+ '<span ng-switch-when="Number" type="number"><input type="text" ng-model="val" '
+ 'placeholder="0" ng-model-onblur ng-change="child[key] = possibleNumber(val)"/>'
+ '</span>'
+ '<span ng-switch-default class="jsonLiteral"><input type="text" ng-model="child[key]" '
+ 'placeholder="Empty" ng-model-onblur/>'
+ '</span>'
+ '</span>';
// display either "plus button" or "key-value inputs"
var addItemTemplate =
'<div ng-switch on="showAddKey" class="block" >'
+ '<span ng-switch-when="true">';
if (scope.type == "object"){
// input key
addItemTemplate += '<input placeholder="Name" type="text" ui-keyup="{\'enter\':\'addItem(child)\'}" '
+ 'class="form-control input-sm addItemKeyInput" ng-model="$parent.keyName" /> ';
}
addItemTemplate +=
// value type dropdown
'<select ng-model="$parent.valueType" ng-options="option for option in valueTypes" class="form-control input-sm"'
+ 'ng-init="$parent.valueType=\''+stringName+'\'" ui-keydown="{\'enter\':\'addItem(child)\'}"></select>'
// input value
+ '<span ng-show="$parent.valueType == \''+stringName+'\'"> : <input type="text" placeholder="Value" '
+ 'class="form-control input-sm addItemValueInput" ng-model="$parent.valueName" ui-keyup="{\'enter\':\'addItem(child)\'}"/></span> '
+ '<span ng-show="$parent.valueType == \''+numberName+'\'"> : <input type="text" placeholder="Value" '
+ 'class="form-control input-sm addItemValueInput" ng-model="$parent.valueName" ui-keyup="{\'enter\':\'addItem(child)\'}"/></span> '
// Add button
+ '<button type="button" class="btn btn-primary btn-sm" ng-click="addItem(child)">Add</button> '
+ '<button type="button" class="btn btn-default btn-sm" ng-click="$parent.showAddKey=false">Cancel</button>'
+ '</span>'
+ '<span ng-switch-default>'
// plus button
+ '<button type="button" class="addObjectItemBtn" ng-click="$parent.showAddKey = true"><i class="glyphicon glyphicon-plus"></i></button>'
+ '</span>'
+ '</div>';
// start template
if (scope.type == "object"){
var template = '<i ng-click="toggleCollapse()" class="glyphicon" ng-class="chevron"></i>'
+ '<span class="jsonItemDesc">'+objectName+'</span>'
+ '<div class="jsonContents" ng-hide="collapsed">'
// repeat
+ '<span class="block" ng-hide="key.indexOf(\'_\') == 0" ng-repeat="(key, val) in child">'
// object key
+ '<span class="jsonObjectKey">'
+ '<input class="keyinput" type="text" ng-model="newkey" ng-init="newkey=key" '
+ 'ng-blur="moveKey(child, key, newkey)"/>'
// delete button
+ '<i class="deleteKeyBtn glyphicon glyphicon-trash" ng-click="deleteKey(child, key)"></i>'
+ '</span>'
// object value
+ '<span class="jsonObjectValue">' + switchTemplate + '</span>'
+ '</span>'
// repeat end
+ addItemTemplate
+ '</div>';
} else if (scope.type == "array") {
var template = '<i ng-click="toggleCollapse()" class="glyphicon"'
+ 'ng-class="chevron"></i>'
+ '<span class="jsonItemDesc">'+arrayName+'</span>'
+ '<div class="jsonContents" ng-hide="collapsed">'
+ '<ol class="arrayOl" ui-sortable="sortableOptions" ng-model="child">'
// repeat
+ '<li class="arrayItem" ng-repeat="(key, val) in child track by $index">'
// delete button
+ '<i class="deleteKeyBtn glyphicon glyphicon-trash" ng-click="deleteKey(child, $index)"></i>'
+ '<i class="moveArrayItemBtn glyphicon glyphicon-align-justify"></i>'
+ '<span>' + switchTemplate + '</span>'
+ '</li>'
// repeat end
+ '</ol>'
+ addItemTemplate
+ '</div>';
} else {
console.error("scope.type was "+ scope.type);
}
var newElement = angular.element(template);
$compile(newElement)(scope);
element.replaceWith ( newElement );
}
};
}]);