2019-02-21 22:32:20 +08:00
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<!DOCTYPE HTML>
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<html>
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<head>
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<title>JSONEditor | Basic usage</title>
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<link href="../dist/jsoneditor.css" rel="stylesheet" type="text/css">
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<script src="../dist/jsoneditor.js"></script>
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<style type="text/css">
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2019-08-29 21:45:32 +08:00
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#jsoneditor {
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width: 500px;
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height: 500px;
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}
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2019-02-21 22:32:20 +08:00
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2019-08-29 21:45:32 +08:00
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.submenu-highlight {
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background-color: yellow !important;
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}
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2019-02-21 22:32:20 +08:00
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2019-08-29 21:45:32 +08:00
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.rainbow {
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background: linear-gradient(to right, cyan, yellow, violet, green, orange, blue) !important;
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}
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2019-02-21 22:32:20 +08:00
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2019-08-29 21:45:32 +08:00
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.example-class > .jsoneditor-icon {
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background-position: -168px -48px; /* warning triangle */
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}
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2019-02-21 22:32:20 +08:00
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2019-08-29 21:45:32 +08:00
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.dotty {
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border-top : 1px dotted #e5e5e5 !important;
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}
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2019-02-21 22:32:20 +08:00
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</style>
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</head>
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<body>
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2019-08-29 21:45:32 +08:00
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<h1>Context Menu Customization</h1>
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<p>
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This example demonstrates the use of the onCreateMenu callback option, which
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allows you to customise context menus after they are created but before they
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are shown to the user. You can alter/delete existing items as well as
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adding new menu items. See the source code for this example for more
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information.
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</p>
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<div id="jsoneditor"></div>
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<script>
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// create the editor
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const container = document.getElementById('jsoneditor')
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const options = {
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// onCreateMenu allows us to register a call back function to customise
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// the context menu. The callback accpets two parameters, items and path.
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// Items is an array containing the current menu items, and path
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// (if present) contains the path of the current node (as an array).
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// The callback should return the modified (or unmodified) list of menu
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// items.
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// Every time the user clicks on a context menu button, the menu
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// is created from scratch and this callback is called.
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onCreateMenu: function (items, node) {
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const path = node.path
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2019-05-29 22:29:29 +08:00
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// log the current items and node for inspection
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console.log('items:', items, 'node:', node)
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// We are going to add a menu item which returns the current node path
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// as a jq path selector ( https://stedolan.github.io/jq/ ). First we
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// will create a function, and then We will connect this function to
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// the menu item click property in a moment.
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function pathTojq() {
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let pathString = ''
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path.forEach(function (segment, index) { // path is an array, loop through it
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if (typeof segment == 'number') { // format the selector for array indexs ...
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pathString += '[' + segment + ']'
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} else { // ... or object keys
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pathString += '."' + segment + '"'
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}
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})
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alert(pathString) // show it to the user.
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}
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// Create a new menu item. For our example, we only want to do this
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// if there is a path (in the case of appendnodes (for new objects)
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// path is null until a node is created)
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if (path) {
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// Each item in the items array represents a menu item,
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// and requires the following details :
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items.push({
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text: 'jq Path', // the text for the menu item
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title: 'Show the jq path for this node', // the HTML title attribute
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className: 'example-class', // the css class name(s) for the menu item
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click: pathTojq // the function to call when the menu item is clicked
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})
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}
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// Now we will iterate through the menu items, which includes the items
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// created by jsoneditor, and the new item we added above. In this
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// example we will just alter the className property for the items, but
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// you can alter any property (e.g. the click callback, text property etc.)
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// for any item, or even delete the whole menu item.
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items.forEach(function (item, index, items) {
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if ("submenu" in item) {
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// if the item has a submenu property, it is a submenu heading
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// and contains another array of menu items. Let's colour
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// that yellow...
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items[index].className += ' submenu-highlight'
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} else {
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// if it's not a submenu heading, let's make it colorful
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items[index].className += ' rainbow'
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}
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})
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// note that the above loop isn't recursive, so it only alters the classes
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// on the top-level menu items. To also process menu items in submenus
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// you should iterate through any "submenu" arrays of items if the item has one.
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// next, just for fun, let's remove any menu separators (again just at the
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// top level menu). A menu separator is an item with a type : 'separator'
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// property
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items = items.filter(function (item) {
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return item.type !== 'separator'
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})
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// finally we need to return the items array. If we don't, the menu
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// will be empty.
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return items
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}
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}
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2019-08-29 21:45:32 +08:00
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const json = {
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'array': [1, 2, 3],
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'boolean': true,
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'color': '#82b92c',
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'null': null,
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'number': 123,
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'object': {'a': 'b', 'c': 'd'},
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'string': 'Hello World'
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}
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2019-08-29 21:45:32 +08:00
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const editor = new JSONEditor(container, options, json)
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</script>
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</body>
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</html>
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