mirror of https://github.com/grafana/grafana
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f6a160b270
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/** Created by: Alex Wendland (me@alexwendland.com), 2014-08-06 |
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* |
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* angular-json-tree |
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* |
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* Directive for creating a tree-view out of a JS Object. Only loads |
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* sub-nodes on demand in order to improve performance of rendering large |
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* objects. |
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* |
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* Attributes: |
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* - object (Object, 2-way): JS object to build the tree from |
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* - start-expanded (Boolean, 1-way, ?=true): should the tree default to expanded |
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* |
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* Usage: |
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* // In the controller |
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* scope.someObject = { |
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* test: 'hello', |
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* array: [1,1,2,3,5,8] |
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* }; |
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* // In the html |
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* <json-tree object="someObject"></json-tree> |
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* |
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* Dependencies: |
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* - utils (json-tree.js) |
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* - ajsRecursiveDirectiveHelper (json-tree.js) |
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* |
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* Test: json-tree-test.js |
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*/ |
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import angular from 'angular'; |
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import coreModule from 'app/core/core_module'; |
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var utils = { |
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/* See link for possible type values to check against. |
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* http://stackoverflow.com/questions/4622952/json-object-containing-array |
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* |
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* Value Class Type |
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* ------------------------------------- |
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* "foo" String string |
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* new String("foo") String object |
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* 1.2 Number number |
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* new Number(1.2) Number object |
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* true Boolean boolean |
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* new Boolean(true) Boolean object |
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* new Date() Date object |
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* new Error() Error object |
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* [1,2,3] Array object |
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* new Array(1, 2, 3) Array object |
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* new Function("") Function function |
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* /abc/g RegExp object (function in Nitro/V8) |
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* new RegExp("meow") RegExp object (function in Nitro/V8) |
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* {} Object object |
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* new Object() Object object |
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*/ |
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is: function is(obj, clazz) { |
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return Object.prototype.toString.call(obj).slice(8, -1) === clazz; |
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}, |
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// See above for possible values |
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whatClass: function whatClass(obj) { |
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return Object.prototype.toString.call(obj).slice(8, -1); |
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}, |
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// Iterate over an objects keyset |
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forKeys: function forKeys(obj, f) { |
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for (var key in obj) { |
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if (obj.hasOwnProperty(key) && typeof obj[key] !== 'function') { |
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if (f(key, obj[key])) { |
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break; |
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} |
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} |
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} |
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} |
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}; |
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coreModule.directive('jsonTree', [function jsonTreeDirective() { |
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return { |
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restrict: 'E', |
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scope: { |
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object: '=', |
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startExpanded: '=', |
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rootName: '@', |
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}, |
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template: '<json-node key="rootName" value="object" start-expanded="startExpanded"></json-node>' |
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}; |
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}]); |
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coreModule.directive('jsonNode', ['ajsRecursiveDirectiveHelper', function jsonNodeDirective(ajsRecursiveDirectiveHelper) { |
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return { |
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restrict: 'E', |
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scope: { |
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key: '=', |
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value: '=', |
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startExpanded: '=' |
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}, |
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compile: function jsonNodeDirectiveCompile(elem) { |
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return ajsRecursiveDirectiveHelper.compile(elem, this); |
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}, |
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template: ' <span class="json-tree-key" ng-click="toggleExpanded()">{{key}}</span>' + |
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' <span class="json-tree-leaf-value" ng-if="!isExpandable">{{value}}</span>' + |
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' <span class="json-tree-branch-preview" ng-if="isExpandable" ng-show="!isExpanded" ng-click="toggleExpanded()">' + |
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' {preview}}</span>' + |
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' <ul class="json-tree-branch-value" ng-if="isExpandable && shouldRender" ng-show="isExpanded">' + |
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' <li ng-repeat="(subkey,subval) in value">' + |
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' <json-node key="subkey" value="subval"></json-node>' + |
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' </li>' + |
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' </ul>', |
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pre: function jsonNodeDirectiveLink(scope, elem, attrs) { |
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// Set value's type as Class for CSS styling |
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elem.addClass(utils.whatClass(scope.value).toLowerCase()); |
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// If the value is an Array or Object, use expandable view type |
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if (utils.is(scope.value, 'Object') || utils.is(scope.value, 'Array')) { |
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scope.isExpandable = true; |
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// Add expandable class for CSS usage |
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elem.addClass('expandable'); |
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// Setup preview text |
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var isArray = utils.is(scope.value, 'Array'); |
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scope.preview = isArray ? '[ ' : '{ '; |
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utils.forKeys(scope.value, function jsonNodeDirectiveLinkForKeys(key, value) { |
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if (isArray) { |
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scope.preview += value + ', '; |
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} else { |
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scope.preview += key + ': ' + value + ', '; |
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} |
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}); |
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scope.preview = scope.preview.substring(0, scope.preview.length - (scope.preview.length > 2 ? 2 : 0)) + (isArray ? ' ]' : ' }'); |
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// If directive initially has isExpanded set, also set shouldRender to true |
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if (scope.startExpanded) { |
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scope.shouldRender = true; |
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elem.addClass('expanded'); |
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} |
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// Setup isExpanded state handling |
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scope.isExpanded = scope.startExpanded ? scope.startExpanded() : false; |
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scope.toggleExpanded = function jsonNodeDirectiveToggleExpanded() { |
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scope.isExpanded = !scope.isExpanded; |
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if (scope.isExpanded) { |
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elem.addClass('expanded'); |
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} else { |
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elem.removeClass('expanded'); |
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} |
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// For delaying subnode render until requested |
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scope.shouldRender = true; |
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}; |
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} else { |
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scope.isExpandable = false; |
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// Add expandable class for CSS usage |
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elem.addClass('not-expandable'); |
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} |
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} |
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}; |
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}]); |
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/** Added by: Alex Wendland (me@alexwendland.com), 2014-08-09 |
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* Source: http://stackoverflow.com/questions/14430655/recursion-in-angular-directives |
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* |
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* Used to allow for recursion within directives |
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*/ |
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coreModule.factory('ajsRecursiveDirectiveHelper', ['$compile', function RecursiveDirectiveHelper($compile) { |
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return { |
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/** |
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* Manually compiles the element, fixing the recursion loop. |
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* @param element |
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* @param [link] A post-link function, or an object with function(s) registered via pre and post properties. |
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* @returns An object containing the linking functions. |
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*/ |
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compile: function RecursiveDirectiveHelperCompile(element, link) { |
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// Normalize the link parameter |
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if (angular.isFunction(link)) { |
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link = { |
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post: link |
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}; |
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} |
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// Break the recursion loop by removing the contents |
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var contents = element.contents().remove(); |
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var compiledContents; |
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return { |
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pre: (link && link.pre) ? link.pre : null, |
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/** |
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* Compiles and re-adds the contents |
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*/ |
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post: function RecursiveDirectiveHelperCompilePost(scope, element) { |
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// Compile the contents |
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if (!compiledContents) { |
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compiledContents = $compile(contents); |
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} |
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// Re-add the compiled contents to the element |
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compiledContents(scope, function (clone) { |
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element.append(clone); |
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}); |
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// Call the post-linking function, if any |
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if (link && link.post) { |
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link.post.apply(null, arguments); |
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} |
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} |
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}; |
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} |
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}; |
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}]); |
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@ -0,0 +1,200 @@ |
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/** Created by: Alex Wendland (me@alexwendland.com), 2014-08-06 |
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* |
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* angular-json-tree |
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* |
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* Directive for creating a tree-view out of a JS Object. Only loads |
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* sub-nodes on demand in order to improve performance of rendering large |
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* objects. |
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* |
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* Attributes: |
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* - object (Object, 2-way): JS object to build the tree from |
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* - start-expanded (Boolean, 1-way, ?=true): should the tree default to expanded |
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* |
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* Usage: |
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* // In the controller
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* scope.someObject = { |
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* test: 'hello', |
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* array: [1,1,2,3,5,8] |
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* }; |
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* // In the html
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* <json-tree object="someObject"></json-tree> |
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* |
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* Dependencies: |
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* - utils (json-tree.js) |
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* - ajsRecursiveDirectiveHelper (json-tree.js) |
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* |
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* Test: json-tree-test.js |
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*/ |
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import angular from 'angular'; |
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import coreModule from 'app/core/core_module'; |
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var utils = { |
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/* See link for possible type values to check against. |
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* http://stackoverflow.com/questions/4622952/json-object-containing-array
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* |
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* Value Class Type |
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* ------------------------------------- |
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* "foo" String string |
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* new String("foo") String object |
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* 1.2 Number number |
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* new Number(1.2) Number object |
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* true Boolean boolean |
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* new Boolean(true) Boolean object |
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* new Date() Date object |
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* new Error() Error object |
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* [1,2,3] Array object |
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* new Array(1, 2, 3) Array object |
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* new Function("") Function function |
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* /abc/g RegExp object (function in Nitro/V8) |
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* new RegExp("meow") RegExp object (function in Nitro/V8) |
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* {} Object object |
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* new Object() Object object |
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*/ |
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is: function is(obj, clazz) { |
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return Object.prototype.toString.call(obj).slice(8, -1) === clazz; |
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}, |
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// See above for possible values
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whatClass: function whatClass(obj) { |
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return Object.prototype.toString.call(obj).slice(8, -1); |
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}, |
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// Iterate over an objects keyset
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forKeys: function forKeys(obj, f) { |
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for (var key in obj) { |
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if (obj.hasOwnProperty(key) && typeof obj[key] !== 'function') { |
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if (f(key, obj[key])) { |
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break; |
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} |
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} |
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} |
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} |
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}; |
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coreModule.directive('jsonTree', [function jsonTreeDirective() { |
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return { |
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restrict: 'E', |
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scope: { |
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object: '=', |
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startExpanded: '@', |
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rootName: '@', |
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}, |
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template: '<json-node key="rootName" value="object" start-expanded="startExpanded"></json-node>' |
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}; |
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}]); |
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coreModule.directive('jsonNode', ['ajsRecursiveDirectiveHelper', function jsonNodeDirective(ajsRecursiveDirectiveHelper) { |
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return { |
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restrict: 'E', |
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scope: { |
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key: '=', |
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value: '=', |
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startExpanded: '@' |
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}, |
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compile: function jsonNodeDirectiveCompile(elem) { |
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return ajsRecursiveDirectiveHelper.compile(elem, this); |
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}, |
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template: ' <span class="json-tree-key" ng-click="toggleExpanded()">{{key}}</span>' + |
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' <span class="json-tree-leaf-value" ng-if="!isExpandable">{{value}}</span>' + |
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' <span class="json-tree-branch-preview" ng-if="isExpandable" ng-show="!isExpanded" ng-click="toggleExpanded()">' + |
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' {{preview}}</span>' + |
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' <ul class="json-tree-branch-value" ng-if="isExpandable && shouldRender" ng-show="isExpanded">' + |
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' <li ng-repeat="(subkey,subval) in value">' + |
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' <json-node key="subkey" value="subval"></json-node>' + |
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' </li>' + |
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' </ul>', |
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pre: function jsonNodeDirectiveLink(scope, elem, attrs) { |
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// Set value's type as Class for CSS styling
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elem.addClass(utils.whatClass(scope.value).toLowerCase()); |
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// If the value is an Array or Object, use expandable view type
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if (utils.is(scope.value, 'Object') || utils.is(scope.value, 'Array')) { |
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scope.isExpandable = true; |
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// Add expandable class for CSS usage
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elem.addClass('expandable'); |
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// Setup preview text
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var isArray = utils.is(scope.value, 'Array'); |
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scope.preview = isArray ? '[ ' : '{ '; |
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utils.forKeys(scope.value, function jsonNodeDirectiveLinkForKeys(key, value) { |
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if (isArray) { |
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scope.preview += value + ', '; |
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} else { |
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scope.preview += key + ': ' + value + ', '; |
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} |
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}); |
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scope.preview = scope.preview.substring(0, scope.preview.length - (scope.preview.length > 2 ? 2 : 0)) + (isArray ? ' ]' : ' }'); |
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// If directive initially has isExpanded set, also set shouldRender to true
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if (scope.startExpanded) { |
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scope.shouldRender = true; |
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elem.addClass('expanded'); |
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} |
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// Setup isExpanded state handling
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scope.isExpanded = scope.startExpanded; |
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scope.toggleExpanded = function jsonNodeDirectiveToggleExpanded() { |
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scope.isExpanded = !scope.isExpanded; |
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if (scope.isExpanded) { |
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elem.addClass('expanded'); |
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} else { |
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elem.removeClass('expanded'); |
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} |
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// For delaying subnode render until requested
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scope.shouldRender = true; |
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}; |
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} else { |
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scope.isExpandable = false; |
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// Add expandable class for CSS usage
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elem.addClass('not-expandable'); |
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} |
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} |
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}; |
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}]); |
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/** Added by: Alex Wendland (me@alexwendland.com), 2014-08-09 |
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* Source: http://stackoverflow.com/questions/14430655/recursion-in-angular-directives
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* |
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* Used to allow for recursion within directives |
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*/ |
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coreModule.factory('ajsRecursiveDirectiveHelper', ['$compile', function RecursiveDirectiveHelper($compile) { |
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return { |
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/** |
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* Manually compiles the element, fixing the recursion loop. |
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* @param element |
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* @param [link] A post-link function, or an object with function(s) registered via pre and post properties. |
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* @returns An object containing the linking functions. |
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*/ |
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compile: function RecursiveDirectiveHelperCompile(element, link) { |
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// Normalize the link parameter
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if (angular.isFunction(link)) { |
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link = { |
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post: link |
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}; |
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} |
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|
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// Break the recursion loop by removing the contents
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var contents = element.contents().remove(); |
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var compiledContents; |
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return { |
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pre: (link && link.pre) ? link.pre : null, |
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/** |
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* Compiles and re-adds the contents |
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*/ |
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post: function RecursiveDirectiveHelperCompilePost(scope, element) { |
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// Compile the contents
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if (!compiledContents) { |
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compiledContents = $compile(contents); |
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} |
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// Re-add the compiled contents to the element
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compiledContents(scope, function (clone) { |
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element.append(clone); |
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}); |
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|
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// Call the post-linking function, if any
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if (link && link.post) { |
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link.post.apply(null, arguments); |
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} |
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} |
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}; |
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} |
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}; |
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}]); |
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@ -0,0 +1,61 @@ |
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/* Structure */ |
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json-tree { |
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.json-tree-key { |
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vertical-align: middle; |
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} |
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.expandable { |
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position: relative; |
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&::before { |
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pointer-events: none; |
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} |
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&::before, & > .key { |
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cursor: pointer; |
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} |
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} |
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.json-tree-branch-preview { |
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display: inline-block; |
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vertical-align: middle; |
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} |
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} |
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/* Looks */ |
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json-tree { |
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ul { |
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padding-left: $spacer; |
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|
} |
||||||
|
li, ul { |
||||||
|
list-style: none; |
||||||
|
} |
||||||
|
li { |
||||||
|
line-height: 1.3rem; |
||||||
|
} |
||||||
|
.json-tree-key { |
||||||
|
color: $variable; |
||||||
|
padding: 5px 10px 5px 15px; |
||||||
|
&::after { |
||||||
|
content: ':'; |
||||||
|
} |
||||||
|
} |
||||||
|
json-node.expandable { |
||||||
|
&::before { |
||||||
|
content: '\25b6'; |
||||||
|
position: absolute; |
||||||
|
left: 0px; |
||||||
|
font-size: 10px; |
||||||
|
transition: transform .1s ease; |
||||||
|
} |
||||||
|
&.expanded::before { |
||||||
|
transform: rotate(90deg); |
||||||
|
} |
||||||
|
} |
||||||
|
.json-tree-leaf-value, .json-tree-branch-preview { |
||||||
|
word-break: break-all; |
||||||
|
} |
||||||
|
.json-tree-branch-preview { |
||||||
|
overflow: hidden; |
||||||
|
font-style: italic; |
||||||
|
max-width: 40%; |
||||||
|
height: 1.5em; |
||||||
|
opacity: .7; |
||||||
|
} |
||||||
|
} |
||||||
Loading…
Reference in new issue