jsoneditor/src_old/js/Node.js

3527 lines
92 KiB
JavaScript

'use strict';
var naturalSort = require('javascript-natural-sort');
var ContextMenu = require('./ContextMenu');
var appendNodeFactory = require('./appendNodeFactory');
var util = require('./util');
/**
* @constructor Node
* Create a new Node
* @param {./treemode} editor
* @param {Object} [params] Can contain parameters:
* {string} field
* {boolean} fieldEditable
* {*} value
* {String} type Can have values 'auto', 'array',
* 'object', or 'string'.
*/
function Node (editor, params) {
/** @type {./treemode} */
this.editor = editor;
this.dom = {};
this.expanded = false;
if(params && (params instanceof Object)) {
this.setField(params.field, params.fieldEditable);
this.setValue(params.value, params.type);
}
else {
this.setField('');
this.setValue(null);
}
this._debouncedOnChangeValue = util.debounce(this._onChangeValue.bind(this), Node.prototype.DEBOUNCE_INTERVAL);
this._debouncedOnChangeField = util.debounce(this._onChangeField.bind(this), Node.prototype.DEBOUNCE_INTERVAL);
}
// debounce interval for keyboard input in milliseconds
Node.prototype.DEBOUNCE_INTERVAL = 150;
/**
* Determine whether the field and/or value of this node are editable
* @private
*/
Node.prototype._updateEditability = function () {
this.editable = {
field: true,
value: true
};
if (this.editor) {
this.editable.field = this.editor.options.mode === 'tree';
this.editable.value = this.editor.options.mode !== 'view';
if ((this.editor.options.mode === 'tree' || this.editor.options.mode === 'form') &&
(typeof this.editor.options.onEditable === 'function')) {
var editable = this.editor.options.onEditable({
field: this.field,
value: this.value,
path: this.getPath()
});
if (typeof editable === 'boolean') {
this.editable.field = editable;
this.editable.value = editable;
}
else {
if (typeof editable.field === 'boolean') this.editable.field = editable.field;
if (typeof editable.value === 'boolean') this.editable.value = editable.value;
}
}
}
};
/**
* Get the path of this node
* @return {String[]} Array containing the path to this node
*/
Node.prototype.getPath = function () {
var node = this;
var path = [];
while (node) {
var field = !node.parent
? undefined // do not add an (optional) field name of the root node
: (node.parent.type != 'array')
? node.field
: node.index;
if (field !== undefined) {
path.unshift(field);
}
node = node.parent;
}
return path;
};
/**
* Find a Node from a JSON path like '.items[3].name'
* @param {string} jsonPath
* @return {Node | null} Returns the Node when found, returns null if not found
*/
Node.prototype.findNode = function (jsonPath) {
var path = util.parsePath(jsonPath);
var node = this;
while (node && path.length > 0) {
var prop = path.shift();
if (typeof prop === 'number') {
if (node.type !== 'array') {
throw new Error('Cannot get child node at index ' + prop + ': node is no array');
}
node = node.childs[prop];
}
else { // string
if (node.type !== 'object') {
throw new Error('Cannot get child node ' + prop + ': node is no object');
}
node = node.childs.filter(function (child) {
return child.field === prop;
})[0];
}
}
return node;
};
/**
* Find all parents of this node. The parents are ordered from root node towards
* the original node.
* @return {Array.<Node>}
*/
Node.prototype.findParents = function () {
var parents = [];
var parent = this.parent;
while (parent) {
parents.unshift(parent);
parent = parent.parent;
}
return parents;
};
/**
*
* @param {{dataPath: string, keyword: string, message: string, params: Object, schemaPath: string} | null} error
* @param {Node} [child] When this is the error of a parent node, pointing
* to an invalid child node, the child node itself
* can be provided. If provided, clicking the error
* icon will set focus to the invalid child node.
*/
Node.prototype.setError = function (error, child) {
// ensure the dom exists
this.getDom();
this.error = error;
var tdError = this.dom.tdError;
if (error) {
if (!tdError) {
tdError = document.createElement('td');
this.dom.tdError = tdError;
this.dom.tdValue.parentNode.appendChild(tdError);
}
var popover = document.createElement('div');
popover.className = 'jsoneditor-popover jsoneditor-right';
popover.appendChild(document.createTextNode(error.message));
var button = document.createElement('button');
button.className = 'jsoneditor-schema-error';
button.appendChild(popover);
// update the direction of the popover
button.onmouseover = button.onfocus = function updateDirection() {
var directions = ['right', 'above', 'below', 'left'];
for (var i = 0; i < directions.length; i++) {
var direction = directions[i];
popover.className = 'jsoneditor-popover jsoneditor-' + direction;
var contentRect = this.editor.content.getBoundingClientRect();
var popoverRect = popover.getBoundingClientRect();
var margin = 20; // account for a scroll bar
var fit = util.insideRect(contentRect, popoverRect, margin);
if (fit) {
break;
}
}
}.bind(this);
// when clicking the error icon, expand all nodes towards the invalid
// child node, and set focus to the child node
if (child) {
button.onclick = function showInvalidNode() {
child.findParents().forEach(function (parent) {
parent.expand(false);
});
child.scrollTo(function () {
child.focus();
});
};
}
// apply the error message to the node
while (tdError.firstChild) {
tdError.removeChild(tdError.firstChild);
}
tdError.appendChild(button);
}
else {
if (tdError) {
this.dom.tdError.parentNode.removeChild(this.dom.tdError);
delete this.dom.tdError;
}
}
};
/**
* Get the index of this node: the index in the list of childs where this
* node is part of
* @return {number} Returns the index, or -1 if this is the root node
*/
Node.prototype.getIndex = function () {
return this.parent ? this.parent.childs.indexOf(this) : -1;
};
/**
* Set parent node
* @param {Node} parent
*/
Node.prototype.setParent = function(parent) {
this.parent = parent;
};
/**
* Set field
* @param {String} field
* @param {boolean} [fieldEditable]
*/
Node.prototype.setField = function(field, fieldEditable) {
this.field = field;
this.previousField = field;
this.fieldEditable = (fieldEditable === true);
};
/**
* Get field
* @return {String}
*/
Node.prototype.getField = function() {
if (this.field === undefined) {
this._getDomField();
}
return this.field;
};
/**
* Set value. Value is a JSON structure or an element String, Boolean, etc.
* @param {*} value
* @param {String} [type] Specify the type of the value. Can be 'auto',
* 'array', 'object', or 'string'
*/
Node.prototype.setValue = function(value, type) {
var childValue, child;
// first clear all current childs (if any)
var childs = this.childs;
if (childs) {
while (childs.length) {
this.removeChild(childs[0]);
}
}
// TODO: remove the DOM of this Node
this.type = this._getType(value);
// check if type corresponds with the provided type
if (type && type != this.type) {
if (type == 'string' && this.type == 'auto') {
this.type = type;
}
else {
throw new Error('Type mismatch: ' +
'cannot cast value of type "' + this.type +
' to the specified type "' + type + '"');
}
}
if (this.type == 'array') {
// array
this.childs = [];
for (var i = 0, iMax = value.length; i < iMax; i++) {
childValue = value[i];
if (childValue !== undefined && !(childValue instanceof Function)) {
// ignore undefined and functions
child = new Node(this.editor, {
value: childValue
});
this.appendChild(child);
}
}
this.value = '';
}
else if (this.type == 'object') {
// object
this.childs = [];
for (var childField in value) {
if (value.hasOwnProperty(childField)) {
childValue = value[childField];
if (childValue !== undefined && !(childValue instanceof Function)) {
// ignore undefined and functions
child = new Node(this.editor, {
field: childField,
value: childValue
});
this.appendChild(child);
}
}
}
this.value = '';
// sort object keys
if (this.editor.options.sortObjectKeys === true) {
this.sort('asc');
}
}
else {
// value
this.childs = undefined;
this.value = value;
}
this.previousValue = this.value;
};
/**
* Get value. Value is a JSON structure
* @return {*} value
*/
Node.prototype.getValue = function() {
//var childs, i, iMax;
if (this.type == 'array') {
var arr = [];
this.childs.forEach (function (child) {
arr.push(child.getValue());
});
return arr;
}
else if (this.type == 'object') {
var obj = {};
this.childs.forEach (function (child) {
obj[child.getField()] = child.getValue();
});
return obj;
}
else {
if (this.value === undefined) {
this._getDomValue();
}
return this.value;
}
};
/**
* Get the nesting level of this node
* @return {Number} level
*/
Node.prototype.getLevel = function() {
return (this.parent ? this.parent.getLevel() + 1 : 0);
};
/**
* Get path of the root node till the current node
* @return {Node[]} Returns an array with nodes
*/
Node.prototype.getNodePath = function() {
var path = this.parent ? this.parent.getNodePath() : [];
path.push(this);
return path;
};
/**
* Create a clone of a node
* The complete state of a clone is copied, including whether it is expanded or
* not. The DOM elements are not cloned.
* @return {Node} clone
*/
Node.prototype.clone = function() {
var clone = new Node(this.editor);
clone.type = this.type;
clone.field = this.field;
clone.fieldInnerText = this.fieldInnerText;
clone.fieldEditable = this.fieldEditable;
clone.value = this.value;
clone.valueInnerText = this.valueInnerText;
clone.expanded = this.expanded;
if (this.childs) {
// an object or array
var cloneChilds = [];
this.childs.forEach(function (child) {
var childClone = child.clone();
childClone.setParent(clone);
cloneChilds.push(childClone);
});
clone.childs = cloneChilds;
}
else {
// a value
clone.childs = undefined;
}
return clone;
};
/**
* Expand this node and optionally its childs.
* @param {boolean} [recurse] Optional recursion, true by default. When
* true, all childs will be expanded recursively
*/
Node.prototype.expand = function(recurse) {
if (!this.childs) {
return;
}
// set this node expanded
this.expanded = true;
if (this.dom.expand) {
this.dom.expand.className = 'jsoneditor-expanded';
}
this.showChilds();
if (recurse !== false) {
this.childs.forEach(function (child) {
child.expand(recurse);
});
}
};
/**
* Collapse this node and optionally its childs.
* @param {boolean} [recurse] Optional recursion, true by default. When
* true, all childs will be collapsed recursively
*/
Node.prototype.collapse = function(recurse) {
if (!this.childs) {
return;
}
this.hideChilds();
// collapse childs in case of recurse
if (recurse !== false) {
this.childs.forEach(function (child) {
child.collapse(recurse);
});
}
// make this node collapsed
if (this.dom.expand) {
this.dom.expand.className = 'jsoneditor-collapsed';
}
this.expanded = false;
};
/**
* Recursively show all childs when they are expanded
*/
Node.prototype.showChilds = function() {
var childs = this.childs;
if (!childs) {
return;
}
if (!this.expanded) {
return;
}
var tr = this.dom.tr;
var table = tr ? tr.parentNode : undefined;
if (table) {
// show row with append button
var append = this.getAppend();
var nextTr = tr.nextSibling;
if (nextTr) {
table.insertBefore(append, nextTr);
}
else {
table.appendChild(append);
}
// show childs
this.childs.forEach(function (child) {
table.insertBefore(child.getDom(), append);
child.showChilds();
});
}
};
/**
* Hide the node with all its childs
*/
Node.prototype.hide = function() {
var tr = this.dom.tr;
var table = tr ? tr.parentNode : undefined;
if (table) {
table.removeChild(tr);
}
this.hideChilds();
};
/**
* Recursively hide all childs
*/
Node.prototype.hideChilds = function() {
var childs = this.childs;
if (!childs) {
return;
}
if (!this.expanded) {
return;
}
// hide append row
var append = this.getAppend();
if (append.parentNode) {
append.parentNode.removeChild(append);
}
// hide childs
this.childs.forEach(function (child) {
child.hide();
});
};
/**
* Add a new child to the node.
* Only applicable when Node value is of type array or object
* @param {Node} node
*/
Node.prototype.appendChild = function(node) {
if (this._hasChilds()) {
// adjust the link to the parent
node.setParent(this);
node.fieldEditable = (this.type == 'object');
if (this.type == 'array') {
node.index = this.childs.length;
}
this.childs.push(node);
if (this.expanded) {
// insert into the DOM, before the appendRow
var newTr = node.getDom();
var appendTr = this.getAppend();
var table = appendTr ? appendTr.parentNode : undefined;
if (appendTr && table) {
table.insertBefore(newTr, appendTr);
}
node.showChilds();
}
this.updateDom({'updateIndexes': true});
node.updateDom({'recurse': true});
}
};
/**
* Move a node from its current parent to this node
* Only applicable when Node value is of type array or object
* @param {Node} node
* @param {Node} beforeNode
*/
Node.prototype.moveBefore = function(node, beforeNode) {
if (this._hasChilds()) {
// create a temporary row, to prevent the scroll position from jumping
// when removing the node
var tbody = (this.dom.tr) ? this.dom.tr.parentNode : undefined;
if (tbody) {
var trTemp = document.createElement('tr');
trTemp.style.height = tbody.clientHeight + 'px';
tbody.appendChild(trTemp);
}
if (node.parent) {
node.parent.removeChild(node);
}
if (beforeNode instanceof AppendNode) {
this.appendChild(node);
}
else {
this.insertBefore(node, beforeNode);
}
if (tbody) {
tbody.removeChild(trTemp);
}
}
};
/**
* Move a node from its current parent to this node
* Only applicable when Node value is of type array or object.
* If index is out of range, the node will be appended to the end
* @param {Node} node
* @param {Number} index
*/
Node.prototype.moveTo = function (node, index) {
if (node.parent == this) {
// same parent
var currentIndex = this.childs.indexOf(node);
if (currentIndex < index) {
// compensate the index for removal of the node itself
index++;
}
}
var beforeNode = this.childs[index] || this.append;
this.moveBefore(node, beforeNode);
};
/**
* Insert a new child before a given node
* Only applicable when Node value is of type array or object
* @param {Node} node
* @param {Node} beforeNode
*/
Node.prototype.insertBefore = function(node, beforeNode) {
if (this._hasChilds()) {
if (beforeNode == this.append) {
// append to the child nodes
// adjust the link to the parent
node.setParent(this);
node.fieldEditable = (this.type == 'object');
this.childs.push(node);
}
else {
// insert before a child node
var index = this.childs.indexOf(beforeNode);
if (index == -1) {
throw new Error('Node not found');
}
// adjust the link to the parent
node.setParent(this);
node.fieldEditable = (this.type == 'object');
this.childs.splice(index, 0, node);
}
if (this.expanded) {
// insert into the DOM
var newTr = node.getDom();
var nextTr = beforeNode.getDom();
var table = nextTr ? nextTr.parentNode : undefined;
if (nextTr && table) {
table.insertBefore(newTr, nextTr);
}
node.showChilds();
}
this.updateDom({'updateIndexes': true});
node.updateDom({'recurse': true});
}
};
/**
* Insert a new child before a given node
* Only applicable when Node value is of type array or object
* @param {Node} node
* @param {Node} afterNode
*/
Node.prototype.insertAfter = function(node, afterNode) {
if (this._hasChilds()) {
var index = this.childs.indexOf(afterNode);
var beforeNode = this.childs[index + 1];
if (beforeNode) {
this.insertBefore(node, beforeNode);
}
else {
this.appendChild(node);
}
}
};
/**
* Search in this node
* The node will be expanded when the text is found one of its childs, else
* it will be collapsed. Searches are case insensitive.
* @param {String} text
* @return {Node[]} results Array with nodes containing the search text
*/
Node.prototype.search = function(text) {
var results = [];
var index;
var search = text ? text.toLowerCase() : undefined;
// delete old search data
delete this.searchField;
delete this.searchValue;
// search in field
if (this.field != undefined) {
var field = String(this.field).toLowerCase();
index = field.indexOf(search);
if (index != -1) {
this.searchField = true;
results.push({
'node': this,
'elem': 'field'
});
}
// update dom
this._updateDomField();
}
// search in value
if (this._hasChilds()) {
// array, object
// search the nodes childs
if (this.childs) {
var childResults = [];
this.childs.forEach(function (child) {
childResults = childResults.concat(child.search(text));
});
results = results.concat(childResults);
}
// update dom
if (search != undefined) {
var recurse = false;
if (childResults.length == 0) {
this.collapse(recurse);
}
else {
this.expand(recurse);
}
}
}
else {
// string, auto
if (this.value != undefined ) {
var value = String(this.value).toLowerCase();
index = value.indexOf(search);
if (index != -1) {
this.searchValue = true;
results.push({
'node': this,
'elem': 'value'
});
}
}
// update dom
this._updateDomValue();
}
return results;
};
/**
* Move the scroll position such that this node is in the visible area.
* The node will not get the focus
* @param {function(boolean)} [callback]
*/
Node.prototype.scrollTo = function(callback) {
if (!this.dom.tr || !this.dom.tr.parentNode) {
// if the node is not visible, expand its parents
var parent = this.parent;
var recurse = false;
while (parent) {
parent.expand(recurse);
parent = parent.parent;
}
}
if (this.dom.tr && this.dom.tr.parentNode) {
this.editor.scrollTo(this.dom.tr.offsetTop, callback);
}
};
// stores the element name currently having the focus
Node.focusElement = undefined;
/**
* Set focus to this node
* @param {String} [elementName] The field name of the element to get the
* focus available values: 'drag', 'menu',
* 'expand', 'field', 'value' (default)
*/
Node.prototype.focus = function(elementName) {
Node.focusElement = elementName;
if (this.dom.tr && this.dom.tr.parentNode) {
var dom = this.dom;
switch (elementName) {
case 'drag':
if (dom.drag) {
dom.drag.focus();
}
else {
dom.menu.focus();
}
break;
case 'menu':
dom.menu.focus();
break;
case 'expand':
if (this._hasChilds()) {
dom.expand.focus();
}
else if (dom.field && this.fieldEditable) {
dom.field.focus();
util.selectContentEditable(dom.field);
}
else if (dom.value && !this._hasChilds()) {
dom.value.focus();
util.selectContentEditable(dom.value);
}
else {
dom.menu.focus();
}
break;
case 'field':
if (dom.field && this.fieldEditable) {
dom.field.focus();
util.selectContentEditable(dom.field);
}
else if (dom.value && !this._hasChilds()) {
dom.value.focus();
util.selectContentEditable(dom.value);
}
else if (this._hasChilds()) {
dom.expand.focus();
}
else {
dom.menu.focus();
}
break;
case 'value':
default:
if (dom.value && !this._hasChilds()) {
dom.value.focus();
util.selectContentEditable(dom.value);
}
else if (dom.field && this.fieldEditable) {
dom.field.focus();
util.selectContentEditable(dom.field);
}
else if (this._hasChilds()) {
dom.expand.focus();
}
else {
dom.menu.focus();
}
break;
}
}
};
/**
* Select all text in an editable div after a delay of 0 ms
* @param {Element} editableDiv
*/
Node.select = function(editableDiv) {
setTimeout(function () {
util.selectContentEditable(editableDiv);
}, 0);
};
/**
* Update the values from the DOM field and value of this node
*/
Node.prototype.blur = function() {
// retrieve the actual field and value from the DOM.
this._getDomValue(false);
this._getDomField(false);
};
/**
* Check if given node is a child. The method will check recursively to find
* this node.
* @param {Node} node
* @return {boolean} containsNode
*/
Node.prototype.containsNode = function(node) {
if (this == node) {
return true;
}
var childs = this.childs;
if (childs) {
// TODO: use the js5 Array.some() here?
for (var i = 0, iMax = childs.length; i < iMax; i++) {
if (childs[i].containsNode(node)) {
return true;
}
}
}
return false;
};
/**
* Move given node into this node
* @param {Node} node the childNode to be moved
* @param {Node} beforeNode node will be inserted before given
* node. If no beforeNode is given,
* the node is appended at the end
* @private
*/
Node.prototype._move = function(node, beforeNode) {
if (node == beforeNode) {
// nothing to do...
return;
}
// check if this node is not a child of the node to be moved here
if (node.containsNode(this)) {
throw new Error('Cannot move a field into a child of itself');
}
// remove the original node
if (node.parent) {
node.parent.removeChild(node);
}
// create a clone of the node
var clone = node.clone();
node.clearDom();
// insert or append the node
if (beforeNode) {
this.insertBefore(clone, beforeNode);
}
else {
this.appendChild(clone);
}
/* TODO: adjust the field name (to prevent equal field names)
if (this.type == 'object') {
}
*/
};
/**
* Remove a child from the node.
* Only applicable when Node value is of type array or object
* @param {Node} node The child node to be removed;
* @return {Node | undefined} node The removed node on success,
* else undefined
*/
Node.prototype.removeChild = function(node) {
if (this.childs) {
var index = this.childs.indexOf(node);
if (index != -1) {
node.hide();
// delete old search results
delete node.searchField;
delete node.searchValue;
var removedNode = this.childs.splice(index, 1)[0];
removedNode.parent = null;
this.updateDom({'updateIndexes': true});
return removedNode;
}
}
return undefined;
};
/**
* Remove a child node node from this node
* This method is equal to Node.removeChild, except that _remove fire an
* onChange event.
* @param {Node} node
* @private
*/
Node.prototype._remove = function (node) {
this.removeChild(node);
};
/**
* Change the type of the value of this Node
* @param {String} newType
*/
Node.prototype.changeType = function (newType) {
var oldType = this.type;
if (oldType == newType) {
// type is not changed
return;
}
if ((newType == 'string' || newType == 'auto') &&
(oldType == 'string' || oldType == 'auto')) {
// this is an easy change
this.type = newType;
}
else {
// change from array to object, or from string/auto to object/array
var table = this.dom.tr ? this.dom.tr.parentNode : undefined;
var lastTr;
if (this.expanded) {
lastTr = this.getAppend();
}
else {
lastTr = this.getDom();
}
var nextTr = (lastTr && lastTr.parentNode) ? lastTr.nextSibling : undefined;
// hide current field and all its childs
this.hide();
this.clearDom();
// adjust the field and the value
this.type = newType;
// adjust childs
if (newType == 'object') {
if (!this.childs) {
this.childs = [];
}
this.childs.forEach(function (child, index) {
child.clearDom();
delete child.index;
child.fieldEditable = true;
if (child.field == undefined) {
child.field = '';
}
});
if (oldType == 'string' || oldType == 'auto') {
this.expanded = true;
}
}
else if (newType == 'array') {
if (!this.childs) {
this.childs = [];
}
this.childs.forEach(function (child, index) {
child.clearDom();
child.fieldEditable = false;
child.index = index;
});
if (oldType == 'string' || oldType == 'auto') {
this.expanded = true;
}
}
else {
this.expanded = false;
}
// create new DOM
if (table) {
if (nextTr) {
table.insertBefore(this.getDom(), nextTr);
}
else {
table.appendChild(this.getDom());
}
}
this.showChilds();
}
if (newType == 'auto' || newType == 'string') {
// cast value to the correct type
if (newType == 'string') {
this.value = String(this.value);
}
else {
this.value = this._stringCast(String(this.value));
}
this.focus();
}
this.updateDom({'updateIndexes': true});
};
/**
* Retrieve value from DOM
* @param {boolean} [silent] If true (default), no errors will be thrown in
* case of invalid data
* @private
*/
Node.prototype._getDomValue = function(silent) {
if (this.dom.value && this.type != 'array' && this.type != 'object') {
this.valueInnerText = util.getInnerText(this.dom.value);
}
if (this.valueInnerText != undefined) {
try {
// retrieve the value
var value;
if (this.type == 'string') {
value = this._unescapeHTML(this.valueInnerText);
}
else {
var str = this._unescapeHTML(this.valueInnerText);
value = this._stringCast(str);
}
if (value !== this.value) {
this.value = value;
this._debouncedOnChangeValue();
}
}
catch (err) {
this.value = undefined;
// TODO: sent an action with the new, invalid value?
if (silent !== true) {
throw err;
}
}
}
};
/**
* Handle a changed value
* @private
*/
Node.prototype._onChangeValue = function () {
// get current selection, then override the range such that we can select
// the added/removed text on undo/redo
var oldSelection = this.editor.getSelection();
if (oldSelection.range) {
var undoDiff = util.textDiff(String(this.value), String(this.previousValue));
oldSelection.range.startOffset = undoDiff.start;
oldSelection.range.endOffset = undoDiff.end;
}
var newSelection = this.editor.getSelection();
if (newSelection.range) {
var redoDiff = util.textDiff(String(this.previousValue), String(this.value));
newSelection.range.startOffset = redoDiff.start;
newSelection.range.endOffset = redoDiff.end;
}
this.editor._onAction('editValue', {
node: this,
oldValue: this.previousValue,
newValue: this.value,
oldSelection: oldSelection,
newSelection: newSelection
});
this.previousValue = this.value;
};
/**
* Handle a changed field
* @private
*/
Node.prototype._onChangeField = function () {
// get current selection, then override the range such that we can select
// the added/removed text on undo/redo
var oldSelection = this.editor.getSelection();
if (oldSelection.range) {
var undoDiff = util.textDiff(this.field, this.previousField);
oldSelection.range.startOffset = undoDiff.start;
oldSelection.range.endOffset = undoDiff.end;
}
var newSelection = this.editor.getSelection();
if (newSelection.range) {
var redoDiff = util.textDiff(this.previousField, this.field);
newSelection.range.startOffset = redoDiff.start;
newSelection.range.endOffset = redoDiff.end;
}
this.editor._onAction('editField', {
node: this,
oldValue: this.previousField,
newValue: this.field,
oldSelection: oldSelection,
newSelection: newSelection
});
this.previousField = this.field;
};
/**
* Update dom value:
* - the text color of the value, depending on the type of the value
* - the height of the field, depending on the width
* - background color in case it is empty
* @private
*/
Node.prototype._updateDomValue = function () {
var domValue = this.dom.value;
if (domValue) {
var classNames = ['jsoneditor-value'];
// set text color depending on value type
var value = this.value;
var type = (this.type == 'auto') ? util.type(value) : this.type;
var isUrl = type == 'string' && util.isUrl(value);
classNames.push('jsoneditor-' + type);
if (isUrl) {
classNames.push('jsoneditor-url');
}
// visual styling when empty
var isEmpty = (String(this.value) == '' && this.type != 'array' && this.type != 'object');
if (isEmpty) {
classNames.push('jsoneditor-empty');
}
// highlight when there is a search result
if (this.searchValueActive) {
classNames.push('jsoneditor-highlight-active');
}
if (this.searchValue) {
classNames.push('jsoneditor-highlight');
}
domValue.className = classNames.join(' ');
// update title
if (type == 'array' || type == 'object') {
var count = this.childs ? this.childs.length : 0;
domValue.title = this.type + ' containing ' + count + ' items';
}
else if (isUrl && this.editable.value) {
domValue.title = 'Ctrl+Click or Ctrl+Enter to open url in new window';
}
else {
domValue.title = '';
}
// show checkbox when the value is a boolean
if (type === 'boolean' && this.editable.value) {
if (!this.dom.checkbox) {
this.dom.checkbox = document.createElement('input');
this.dom.checkbox.type = 'checkbox';
this.dom.tdCheckbox = document.createElement('td');
this.dom.tdCheckbox.className = 'jsoneditor-tree';
this.dom.tdCheckbox.appendChild(this.dom.checkbox);
this.dom.tdValue.parentNode.insertBefore(this.dom.tdCheckbox, this.dom.tdValue);
}
this.dom.checkbox.checked = this.value;
}
else {
// cleanup checkbox when displayed
if (this.dom.tdCheckbox) {
this.dom.tdCheckbox.parentNode.removeChild(this.dom.tdCheckbox);
delete this.dom.tdCheckbox;
delete this.dom.checkbox;
}
}
if (this.enum && this.editable.value) {
// create select box when this node has an enum object
if (!this.dom.select) {
this.dom.select = document.createElement('select');
this.id = this.field + "_" + new Date().getUTCMilliseconds();
this.dom.select.id = this.id;
this.dom.select.name = this.dom.select.id;
//Create the default empty option
this.dom.select.option = document.createElement('option');
this.dom.select.option.value = '';
this.dom.select.option.innerHTML = '--';
this.dom.select.appendChild(this.dom.select.option);
//Iterate all enum values and add them as options
for(var i = 0; i < this.enum.length; i++) {
this.dom.select.option = document.createElement('option');
this.dom.select.option.value = this.enum[i];
this.dom.select.option.innerHTML = this.enum[i];
if(this.dom.select.option.value == this.value){
this.dom.select.option.selected = true;
}
this.dom.select.appendChild(this.dom.select.option);
}
this.dom.tdSelect = document.createElement('td');
this.dom.tdSelect.className = 'jsoneditor-tree';
this.dom.tdSelect.appendChild(this.dom.select);
this.dom.tdValue.parentNode.insertBefore(this.dom.tdSelect, this.dom.tdValue);
}
// If the enum is inside a composite type display
// both the simple input and the dropdown field
if(this.schema && (
!this.schema.hasOwnProperty("oneOf") &&
!this.schema.hasOwnProperty("anyOf") &&
!this.schema.hasOwnProperty("allOf"))
) {
this.valueFieldHTML = this.dom.tdValue.innerHTML;
this.dom.tdValue.style.visibility = 'hidden';
this.dom.tdValue.innerHTML = '';
} else {
delete this.valueFieldHTML;
}
}
else {
// cleanup select box when displayed
if (this.dom.tdSelect) {
this.dom.tdSelect.parentNode.removeChild(this.dom.tdSelect);
delete this.dom.tdSelect;
delete this.dom.select;
this.dom.tdValue.innerHTML = this.valueFieldHTML;
this.dom.tdValue.style.visibility = '';
delete this.valueFieldHTML;
}
}
// strip formatting from the contents of the editable div
util.stripFormatting(domValue);
}
};
/**
* Update dom field:
* - the text color of the field, depending on the text
* - the height of the field, depending on the width
* - background color in case it is empty
* @private
*/
Node.prototype._updateDomField = function () {
var domField = this.dom.field;
if (domField) {
// make backgound color lightgray when empty
var isEmpty = (String(this.field) == '' && this.parent.type != 'array');
if (isEmpty) {
util.addClassName(domField, 'jsoneditor-empty');
}
else {
util.removeClassName(domField, 'jsoneditor-empty');
}
// highlight when there is a search result
if (this.searchFieldActive) {
util.addClassName(domField, 'jsoneditor-highlight-active');
}
else {
util.removeClassName(domField, 'jsoneditor-highlight-active');
}
if (this.searchField) {
util.addClassName(domField, 'jsoneditor-highlight');
}
else {
util.removeClassName(domField, 'jsoneditor-highlight');
}
// strip formatting from the contents of the editable div
util.stripFormatting(domField);
}
};
/**
* Retrieve field from DOM
* @param {boolean} [silent] If true (default), no errors will be thrown in
* case of invalid data
* @private
*/
Node.prototype._getDomField = function(silent) {
if (this.dom.field && this.fieldEditable) {
this.fieldInnerText = util.getInnerText(this.dom.field);
}
if (this.fieldInnerText != undefined) {
try {
var field = this._unescapeHTML(this.fieldInnerText);
if (field !== this.field) {
this.field = field;
this._debouncedOnChangeField();
}
}
catch (err) {
this.field = undefined;
// TODO: sent an action here, with the new, invalid value?
if (silent !== true) {
throw err;
}
}
}
};
/**
* Validate this node and all it's childs
* @return {Array.<{node: Node, error: {message: string}}>} Returns a list with duplicates
*/
Node.prototype.validate = function () {
var errors = [];
// find duplicate keys
if (this.type === 'object') {
var keys = {};
var duplicateKeys = [];
for (var i = 0; i < this.childs.length; i++) {
var child = this.childs[i];
if (keys[child.field]) {
duplicateKeys.push(child.field);
}
keys[child.field] = true;
}
if (duplicateKeys.length > 0) {
errors = this.childs
.filter(function (node) {
return duplicateKeys.indexOf(node.field) !== -1;
})
.map(function (node) {
return {
node: node,
error: {
message: 'duplicate key "' + node.field + '"'
}
}
});
}
}
// recurse over the childs
if (this.childs) {
for (var i = 0; i < this.childs.length; i++) {
var e = this.childs[i].validate();
if (e.length > 0) {
errors = errors.concat(e);
}
}
}
return errors;
};
/**
* Clear the dom of the node
*/
Node.prototype.clearDom = function() {
// TODO: hide the node first?
//this.hide();
// TODO: recursively clear dom?
this.dom = {};
};
/**
* Get the HTML DOM TR element of the node.
* The dom will be generated when not yet created
* @return {Element} tr HTML DOM TR Element
*/
Node.prototype.getDom = function() {
var dom = this.dom;
if (dom.tr) {
return dom.tr;
}
this._updateEditability();
// create row
dom.tr = document.createElement('tr');
dom.tr.node = this;
if (this.editor.options.mode === 'tree') { // note: we take here the global setting
var tdDrag = document.createElement('td');
if (this.editable.field) {
// create draggable area
if (this.parent) {
var domDrag = document.createElement('button');
dom.drag = domDrag;
domDrag.className = 'jsoneditor-dragarea';
domDrag.title = 'Drag to move this field (Alt+Shift+Arrows)';
tdDrag.appendChild(domDrag);
}
}
dom.tr.appendChild(tdDrag);
// create context menu
var tdMenu = document.createElement('td');
var menu = document.createElement('button');
dom.menu = menu;
menu.className = 'jsoneditor-contextmenu';
menu.title = 'Click to open the actions menu (Ctrl+M)';
tdMenu.appendChild(dom.menu);
dom.tr.appendChild(tdMenu);
}
// create tree and field
var tdField = document.createElement('td');
dom.tr.appendChild(tdField);
dom.tree = this._createDomTree();
tdField.appendChild(dom.tree);
this.updateDom({'updateIndexes': true});
return dom.tr;
};
/**
* DragStart event, fired on mousedown on the dragarea at the left side of a Node
* @param {Node[] | Node} nodes
* @param {Event} event
*/
Node.onDragStart = function (nodes, event) {
if (!Array.isArray(nodes)) {
return Node.onDragStart([nodes], event);
}
if (nodes.length === 0) {
return;
}
var firstNode = nodes[0];
var lastNode = nodes[nodes.length - 1];
var draggedNode = Node.getNodeFromTarget(event.target);
var beforeNode = lastNode._nextSibling();
var editor = firstNode.editor;
// in case of multiple selected nodes, offsetY prevents the selection from
// jumping when you start dragging one of the lower down nodes in the selection
var offsetY = util.getAbsoluteTop(draggedNode.dom.tr) - util.getAbsoluteTop(firstNode.dom.tr);
if (!editor.mousemove) {
editor.mousemove = util.addEventListener(window, 'mousemove', function (event) {
Node.onDrag(nodes, event);
});
}
if (!editor.mouseup) {
editor.mouseup = util.addEventListener(window, 'mouseup',function (event ) {
Node.onDragEnd(nodes, event);
});
}
editor.highlighter.lock();
editor.drag = {
oldCursor: document.body.style.cursor,
oldSelection: editor.getSelection(),
oldBeforeNode: beforeNode,
mouseX: event.pageX,
offsetY: offsetY,
level: firstNode.getLevel()
};
document.body.style.cursor = 'move';
event.preventDefault();
};
/**
* Drag event, fired when moving the mouse while dragging a Node
* @param {Node[] | Node} nodes
* @param {Event} event
*/
Node.onDrag = function (nodes, event) {
if (!Array.isArray(nodes)) {
return Node.onDrag([nodes], event);
}
if (nodes.length === 0) {
return;
}
// TODO: this method has grown too large. Split it in a number of methods
var editor = nodes[0].editor;
var mouseY = event.pageY - editor.drag.offsetY;
var mouseX = event.pageX;
var trThis, trPrev, trNext, trFirst, trLast, trRoot;
var nodePrev, nodeNext;
var topThis, topPrev, topFirst, heightThis, bottomNext, heightNext;
var moved = false;
// TODO: add an ESC option, which resets to the original position
// move up/down
var firstNode = nodes[0];
trThis = firstNode.dom.tr;
topThis = util.getAbsoluteTop(trThis);
heightThis = trThis.offsetHeight;
if (mouseY < topThis) {
// move up
trPrev = trThis;
do {
trPrev = trPrev.previousSibling;
nodePrev = Node.getNodeFromTarget(trPrev);
topPrev = trPrev ? util.getAbsoluteTop(trPrev) : 0;
}
while (trPrev && mouseY < topPrev);
if (nodePrev && !nodePrev.parent) {
nodePrev = undefined;
}
if (!nodePrev) {
// move to the first node
trRoot = trThis.parentNode.firstChild;
trPrev = trRoot ? trRoot.nextSibling : undefined;
nodePrev = Node.getNodeFromTarget(trPrev);
if (nodePrev == firstNode) {
nodePrev = undefined;
}
}
if (nodePrev) {
// check if mouseY is really inside the found node
trPrev = nodePrev.dom.tr;
topPrev = trPrev ? util.getAbsoluteTop(trPrev) : 0;
if (mouseY > topPrev + heightThis) {
nodePrev = undefined;
}
}
if (nodePrev) {
nodes.forEach(function (node) {
nodePrev.parent.moveBefore(node, nodePrev);
});
moved = true;
}
}
else {
// move down
var lastNode = nodes[nodes.length - 1];
trLast = (lastNode.expanded && lastNode.append) ? lastNode.append.getDom() : lastNode.dom.tr;
trFirst = trLast ? trLast.nextSibling : undefined;
if (trFirst) {
topFirst = util.getAbsoluteTop(trFirst);
trNext = trFirst;
do {
nodeNext = Node.getNodeFromTarget(trNext);
if (trNext) {
bottomNext = trNext.nextSibling ?
util.getAbsoluteTop(trNext.nextSibling) : 0;
heightNext = trNext ? (bottomNext - topFirst) : 0;
if (nodeNext.parent.childs.length == nodes.length &&
nodeNext.parent.childs[nodes.length - 1] == lastNode) {
// We are about to remove the last child of this parent,
// which will make the parents appendNode visible.
topThis += 27;
// TODO: dangerous to suppose the height of the appendNode a constant of 27 px.
}
}
trNext = trNext.nextSibling;
}
while (trNext && mouseY > topThis + heightNext);
if (nodeNext && nodeNext.parent) {
// calculate the desired level
var diffX = (mouseX - editor.drag.mouseX);
var diffLevel = Math.round(diffX / 24 / 2);
var level = editor.drag.level + diffLevel; // desired level
var levelNext = nodeNext.getLevel(); // level to be
// find the best fitting level (move upwards over the append nodes)
trPrev = nodeNext.dom.tr.previousSibling;
while (levelNext < level && trPrev) {
nodePrev = Node.getNodeFromTarget(trPrev);
var isDraggedNode = nodes.some(function (node) {
return node === nodePrev || nodePrev._isChildOf(node);
});
if (isDraggedNode) {
// neglect the dragged nodes themselves and their childs
}
else if (nodePrev instanceof AppendNode) {
var childs = nodePrev.parent.childs;
if (childs.length != nodes.length || childs[nodes.length - 1] != lastNode) {
// non-visible append node of a list of childs
// consisting of not only this node (else the
// append node will change into a visible "empty"
// text when removing this node).
nodeNext = Node.getNodeFromTarget(trPrev);
levelNext = nodeNext.getLevel();
}
else {
break;
}
}
else {
break;
}
trPrev = trPrev.previousSibling;
}
// move the node when its position is changed
if (trLast.nextSibling != nodeNext.dom.tr) {
nodes.forEach(function (node) {
nodeNext.parent.moveBefore(node, nodeNext);
});
moved = true;
}
}
}
}
if (moved) {
// update the dragging parameters when moved
editor.drag.mouseX = mouseX;
editor.drag.level = firstNode.getLevel();
}
// auto scroll when hovering around the top of the editor
editor.startAutoScroll(mouseY);
event.preventDefault();
};
/**
* Drag event, fired on mouseup after having dragged a node
* @param {Node[] | Node} nodes
* @param {Event} event
*/
Node.onDragEnd = function (nodes, event) {
if (!Array.isArray(nodes)) {
return Node.onDrag([nodes], event);
}
if (nodes.length === 0) {
return;
}
var firstNode = nodes[0];
var editor = firstNode.editor;
var parent = firstNode.parent;
var firstIndex = parent.childs.indexOf(firstNode);
var beforeNode = parent.childs[firstIndex + nodes.length] || parent.append;
// set focus to the context menu button of the first node
if (nodes[0]) {
nodes[0].dom.menu.focus();
}
var params = {
nodes: nodes,
oldSelection: editor.drag.oldSelection,
newSelection: editor.getSelection(),
oldBeforeNode: editor.drag.oldBeforeNode,
newBeforeNode: beforeNode
};
if (params.oldBeforeNode != params.newBeforeNode) {
// only register this action if the node is actually moved to another place
editor._onAction('moveNodes', params);
}
document.body.style.cursor = editor.drag.oldCursor;
editor.highlighter.unlock();
nodes.forEach(function (node) {
if (event.target !== node.dom.drag && event.target !== node.dom.menu) {
editor.highlighter.unhighlight();
}
});
delete editor.drag;
if (editor.mousemove) {
util.removeEventListener(window, 'mousemove', editor.mousemove);
delete editor.mousemove;
}
if (editor.mouseup) {
util.removeEventListener(window, 'mouseup', editor.mouseup);
delete editor.mouseup;
}
// Stop any running auto scroll
editor.stopAutoScroll();
event.preventDefault();
};
/**
* Test if this node is a child of an other node
* @param {Node} node
* @return {boolean} isChild
* @private
*/
Node.prototype._isChildOf = function (node) {
var n = this.parent;
while (n) {
if (n == node) {
return true;
}
n = n.parent;
}
return false;
};
/**
* Create an editable field
* @return {Element} domField
* @private
*/
Node.prototype._createDomField = function () {
return document.createElement('div');
};
/**
* Set highlighting for this node and all its childs.
* Only applied to the currently visible (expanded childs)
* @param {boolean} highlight
*/
Node.prototype.setHighlight = function (highlight) {
if (this.dom.tr) {
if (highlight) {
util.addClassName(this.dom.tr, 'jsoneditor-highlight');
}
else {
util.removeClassName(this.dom.tr, 'jsoneditor-highlight');
}
if (this.append) {
this.append.setHighlight(highlight);
}
if (this.childs) {
this.childs.forEach(function (child) {
child.setHighlight(highlight);
});
}
}
};
/**
* Select or deselect a node
* @param {boolean} selected
* @param {boolean} [isFirst]
*/
Node.prototype.setSelected = function (selected, isFirst) {
this.selected = selected;
if (this.dom.tr) {
if (selected) {
util.addClassName(this.dom.tr, 'jsoneditor-selected');
}
else {
util.removeClassName(this.dom.tr, 'jsoneditor-selected');
}
if (isFirst) {
util.addClassName(this.dom.tr, 'jsoneditor-first');
}
else {
util.removeClassName(this.dom.tr, 'jsoneditor-first');
}
if (this.append) {
this.append.setSelected(selected);
}
if (this.childs) {
this.childs.forEach(function (child) {
child.setSelected(selected);
});
}
}
};
/**
* Update the value of the node. Only primitive types are allowed, no Object
* or Array is allowed.
* @param {String | Number | Boolean | null} value
*/
Node.prototype.updateValue = function (value) {
this.value = value;
this.updateDom();
};
/**
* Update the field of the node.
* @param {String} field
*/
Node.prototype.updateField = function (field) {
this.field = field;
this.updateDom();
};
/**
* Update the HTML DOM, optionally recursing through the childs
* @param {Object} [options] Available parameters:
* {boolean} [recurse] If true, the
* DOM of the childs will be updated recursively.
* False by default.
* {boolean} [updateIndexes] If true, the childs
* indexes of the node will be updated too. False by
* default.
*/
Node.prototype.updateDom = function (options) {
// update level indentation
var domTree = this.dom.tree;
if (domTree) {
domTree.style.marginLeft = this.getLevel() * 24 + 'px';
}
// apply field to DOM
var domField = this.dom.field;
if (domField) {
if (this.fieldEditable) {
// parent is an object
domField.contentEditable = this.editable.field;
domField.spellcheck = false;
domField.className = 'jsoneditor-field';
}
else {
// parent is an array this is the root node
domField.className = 'jsoneditor-readonly';
}
var fieldText;
if (this.index != undefined) {
fieldText = this.index;
}
else if (this.field != undefined) {
fieldText = this.field;
}
else if (this._hasChilds()) {
fieldText = this.type;
}
else {
fieldText = '';
}
domField.innerHTML = this._escapeHTML(fieldText);
this._updateSchema();
}
// apply value to DOM
var domValue = this.dom.value;
if (domValue) {
var count = this.childs ? this.childs.length : 0;
if (this.type == 'array') {
domValue.innerHTML = '[' + count + ']';
util.addClassName(this.dom.tr, 'jsoneditor-expandable');
}
else if (this.type == 'object') {
domValue.innerHTML = '{' + count + '}';
util.addClassName(this.dom.tr, 'jsoneditor-expandable');
}
else {
domValue.innerHTML = this._escapeHTML(this.value);
util.removeClassName(this.dom.tr, 'jsoneditor-expandable');
}
}
// update field and value
this._updateDomField();
this._updateDomValue();
// update childs indexes
if (options && options.updateIndexes === true) {
// updateIndexes is true or undefined
this._updateDomIndexes();
}
if (options && options.recurse === true) {
// recurse is true or undefined. update childs recursively
if (this.childs) {
this.childs.forEach(function (child) {
child.updateDom(options);
});
}
}
// update row with append button
if (this.append) {
this.append.updateDom();
}
};
/**
* Locate the JSON schema of the node and check for any enum type
* @private
*/
Node.prototype._updateSchema = function () {
//Locating the schema of the node and checking for any enum type
if(this.editor && this.editor.options) {
// find the part of the json schema matching this nodes path
this.schema = Node._findSchema(this.editor.options.schema, this.getPath());
if (this.schema) {
this.enum = Node._findEnum(this.schema);
}
else {
delete this.enum;
}
}
};
/**
* find an enum definition in a JSON schema, as property `enum` or inside
* one of the schemas composites (`oneOf`, `anyOf`, `allOf`)
* @param {Object} schema
* @return {Array | null} Returns the enum when found, null otherwise.
* @private
*/
Node._findEnum = function (schema) {
if (schema.enum) {
return schema.enum;
}
var composite = schema.oneOf || schema.anyOf || schema.allOf;
if (composite) {
var match = composite.filter(function (entry) {return entry.enum});
if (match.length > 0) {
return match[0].enum;
}
}
return null
};
/**
* Return the part of a JSON schema matching given path.
* @param {Object} schema
* @param {Array.<string | number>} path
* @return {Object | null}
* @private
*/
Node._findSchema = function (schema, path) {
var childSchema = schema;
for (var i = 0; i < path.length && childSchema; i++) {
var key = path[i];
if (typeof key === 'string' && childSchema.properties) {
childSchema = childSchema.properties[key] || null
}
else if (typeof key === 'number' && childSchema.items) {
childSchema = childSchema.items
}
}
return childSchema
};
/**
* Update the DOM of the childs of a node: update indexes and undefined field
* names.
* Only applicable when structure is an array or object
* @private
*/
Node.prototype._updateDomIndexes = function () {
var domValue = this.dom.value;
var childs = this.childs;
if (domValue && childs) {
if (this.type == 'array') {
childs.forEach(function (child, index) {
child.index = index;
var childField = child.dom.field;
if (childField) {
childField.innerHTML = index;
}
});
}
else if (this.type == 'object') {
childs.forEach(function (child) {
if (child.index != undefined) {
delete child.index;
if (child.field == undefined) {
child.field = '';
}
}
});
}
}
};
/**
* Create an editable value
* @private
*/
Node.prototype._createDomValue = function () {
var domValue;
if (this.type == 'array') {
domValue = document.createElement('div');
domValue.innerHTML = '[...]';
}
else if (this.type == 'object') {
domValue = document.createElement('div');
domValue.innerHTML = '{...}';
}
else {
if (!this.editable.value && util.isUrl(this.value)) {
// create a link in case of read-only editor and value containing an url
domValue = document.createElement('a');
domValue.href = this.value;
domValue.target = '_blank';
domValue.innerHTML = this._escapeHTML(this.value);
}
else {
// create an editable or read-only div
domValue = document.createElement('div');
domValue.contentEditable = this.editable.value;
domValue.spellcheck = false;
domValue.innerHTML = this._escapeHTML(this.value);
}
}
return domValue;
};
/**
* Create an expand/collapse button
* @return {Element} expand
* @private
*/
Node.prototype._createDomExpandButton = function () {
// create expand button
var expand = document.createElement('button');
if (this._hasChilds()) {
expand.className = this.expanded ? 'jsoneditor-expanded' : 'jsoneditor-collapsed';
expand.title =
'Click to expand/collapse this field (Ctrl+E). \n' +
'Ctrl+Click to expand/collapse including all childs.';
}
else {
expand.className = 'jsoneditor-invisible';
expand.title = '';
}
return expand;
};
/**
* Create a DOM tree element, containing the expand/collapse button
* @return {Element} domTree
* @private
*/
Node.prototype._createDomTree = function () {
var dom = this.dom;
var domTree = document.createElement('table');
var tbody = document.createElement('tbody');
domTree.style.borderCollapse = 'collapse'; // TODO: put in css
domTree.className = 'jsoneditor-values';
domTree.appendChild(tbody);
var tr = document.createElement('tr');
tbody.appendChild(tr);
// create expand button
var tdExpand = document.createElement('td');
tdExpand.className = 'jsoneditor-tree';
tr.appendChild(tdExpand);
dom.expand = this._createDomExpandButton();
tdExpand.appendChild(dom.expand);
dom.tdExpand = tdExpand;
// create the field
var tdField = document.createElement('td');
tdField.className = 'jsoneditor-tree';
tr.appendChild(tdField);
dom.field = this._createDomField();
tdField.appendChild(dom.field);
dom.tdField = tdField;
// create a separator
var tdSeparator = document.createElement('td');
tdSeparator.className = 'jsoneditor-tree';
tr.appendChild(tdSeparator);
if (this.type != 'object' && this.type != 'array') {
tdSeparator.appendChild(document.createTextNode(':'));
tdSeparator.className = 'jsoneditor-separator';
}
dom.tdSeparator = tdSeparator;
// create the value
var tdValue = document.createElement('td');
tdValue.className = 'jsoneditor-tree';
tr.appendChild(tdValue);
dom.value = this._createDomValue();
tdValue.appendChild(dom.value);
dom.tdValue = tdValue;
return domTree;
};
/**
* Handle an event. The event is caught centrally by the editor
* @param {Event} event
*/
Node.prototype.onEvent = function (event) {
var type = event.type,
target = event.target || event.srcElement,
dom = this.dom,
node = this,
expandable = this._hasChilds();
// check if mouse is on menu or on dragarea.
// If so, highlight current row and its childs
if (target == dom.drag || target == dom.menu) {
if (type == 'mouseover') {
this.editor.highlighter.highlight(this);
}
else if (type == 'mouseout') {
this.editor.highlighter.unhighlight();
}
}
// context menu events
if (type == 'click' && target == dom.menu) {
var highlighter = node.editor.highlighter;
highlighter.highlight(node);
highlighter.lock();
util.addClassName(dom.menu, 'jsoneditor-selected');
this.showContextMenu(dom.menu, function () {
util.removeClassName(dom.menu, 'jsoneditor-selected');
highlighter.unlock();
highlighter.unhighlight();
});
}
// expand events
if (type == 'click') {
if (target == dom.expand ||
((node.editor.options.mode === 'view' || node.editor.options.mode === 'form') && target.nodeName === 'DIV')) {
if (expandable) {
var recurse = event.ctrlKey; // with ctrl-key, expand/collapse all
this._onExpand(recurse);
}
}
}
// swap the value of a boolean when the checkbox displayed left is clicked
if (type == 'change' && target == dom.checkbox) {
this.dom.value.innerHTML = !this.value;
this._getDomValue();
}
// update the value of the node based on the selected option
if (type == 'change' && target == dom.select) {
this.dom.value.innerHTML = dom.select.value;
this._getDomValue();
this._updateDomValue();
}
// value events
var domValue = dom.value;
if (target == domValue) {
//noinspection FallthroughInSwitchStatementJS
switch (type) {
case 'blur':
case 'change':
this._getDomValue(true);
this._updateDomValue();
if (this.value) {
domValue.innerHTML = this._escapeHTML(this.value);
}
break;
case 'input':
//this._debouncedGetDomValue(true); // TODO
this._getDomValue(true);
this._updateDomValue();
break;
case 'keydown':
case 'mousedown':
// TODO: cleanup
this.editor.selection = this.editor.getSelection();
break;
case 'click':
if (event.ctrlKey || !this.editable.value) {
if (util.isUrl(this.value)) {
window.open(this.value, '_blank');
}
}
break;
case 'keyup':
//this._debouncedGetDomValue(true); // TODO
this._getDomValue(true);
this._updateDomValue();
break;
case 'cut':
case 'paste':
setTimeout(function () {
node._getDomValue(true);
node._updateDomValue();
}, 1);
break;
}
}
// field events
var domField = dom.field;
if (target == domField) {
switch (type) {
case 'blur':
case 'change':
this._getDomField(true);
this._updateDomField();
if (this.field) {
domField.innerHTML = this._escapeHTML(this.field);
}
break;
case 'input':
this._getDomField(true);
this._updateSchema();
this._updateDomField();
this._updateDomValue();
break;
case 'keydown':
case 'mousedown':
this.editor.selection = this.editor.getSelection();
break;
case 'keyup':
this._getDomField(true);
this._updateDomField();
break;
case 'cut':
case 'paste':
setTimeout(function () {
node._getDomField(true);
node._updateDomField();
}, 1);
break;
}
}
// focus
// when clicked in whitespace left or right from the field or value, set focus
var domTree = dom.tree;
if (target == domTree.parentNode && type == 'click' && !event.hasMoved) {
var left = (event.offsetX != undefined) ?
(event.offsetX < (this.getLevel() + 1) * 24) :
(event.pageX < util.getAbsoluteLeft(dom.tdSeparator));// for FF
if (left || expandable) {
// node is expandable when it is an object or array
if (domField) {
util.setEndOfContentEditable(domField);
domField.focus();
}
}
else {
if (domValue && !this.enum) {
util.setEndOfContentEditable(domValue);
domValue.focus();
}
}
}
if (((target == dom.tdExpand && !expandable) || target == dom.tdField || target == dom.tdSeparator) &&
(type == 'click' && !event.hasMoved)) {
if (domField) {
util.setEndOfContentEditable(domField);
domField.focus();
}
}
if (type == 'keydown') {
this.onKeyDown(event);
}
};
/**
* Key down event handler
* @param {Event} event
*/
Node.prototype.onKeyDown = function (event) {
var keynum = event.which || event.keyCode;
var target = event.target || event.srcElement;
var ctrlKey = event.ctrlKey;
var shiftKey = event.shiftKey;
var altKey = event.altKey;
var handled = false;
var prevNode, nextNode, nextDom, nextDom2;
var editable = this.editor.options.mode === 'tree';
var oldSelection;
var oldBeforeNode;
var nodes;
var multiselection;
var selectedNodes = this.editor.multiselection.nodes.length > 0
? this.editor.multiselection.nodes
: [this];
var firstNode = selectedNodes[0];
var lastNode = selectedNodes[selectedNodes.length - 1];
// console.log(ctrlKey, keynum, event.charCode); // TODO: cleanup
if (keynum == 13) { // Enter
if (target == this.dom.value) {
if (!this.editable.value || event.ctrlKey) {
if (util.isUrl(this.value)) {
window.open(this.value, '_blank');
handled = true;
}
}
}
else if (target == this.dom.expand) {
var expandable = this._hasChilds();
if (expandable) {
var recurse = event.ctrlKey; // with ctrl-key, expand/collapse all
this._onExpand(recurse);
target.focus();
handled = true;
}
}
}
else if (keynum == 68) { // D
if (ctrlKey && editable) { // Ctrl+D
Node.onDuplicate(selectedNodes);
handled = true;
}
}
else if (keynum == 69) { // E
if (ctrlKey) { // Ctrl+E and Ctrl+Shift+E
this._onExpand(shiftKey); // recurse = shiftKey
target.focus(); // TODO: should restore focus in case of recursing expand (which takes DOM offline)
handled = true;
}
}
else if (keynum == 77 && editable) { // M
if (ctrlKey) { // Ctrl+M
this.showContextMenu(target);
handled = true;
}
}
else if (keynum == 46 && editable) { // Del
if (ctrlKey) { // Ctrl+Del
Node.onRemove(selectedNodes);
handled = true;
}
}
else if (keynum == 45 && editable) { // Ins
if (ctrlKey && !shiftKey) { // Ctrl+Ins
this._onInsertBefore();
handled = true;
}
else if (ctrlKey && shiftKey) { // Ctrl+Shift+Ins
this._onInsertAfter();
handled = true;
}
}
else if (keynum == 35) { // End
if (altKey) { // Alt+End
// find the last node
var endNode = this._lastNode();
if (endNode) {
endNode.focus(Node.focusElement || this._getElementName(target));
}
handled = true;
}
}
else if (keynum == 36) { // Home
if (altKey) { // Alt+Home
// find the first node
var homeNode = this._firstNode();
if (homeNode) {
homeNode.focus(Node.focusElement || this._getElementName(target));
}
handled = true;
}
}
else if (keynum == 37) { // Arrow Left
if (altKey && !shiftKey) { // Alt + Arrow Left
// move to left element
var prevElement = this._previousElement(target);
if (prevElement) {
this.focus(this._getElementName(prevElement));
}
handled = true;
}
else if (altKey && shiftKey && editable) { // Alt + Shift + Arrow left
if (lastNode.expanded) {
var appendDom = lastNode.getAppend();
nextDom = appendDom ? appendDom.nextSibling : undefined;
}
else {
var dom = lastNode.getDom();
nextDom = dom.nextSibling;
}
if (nextDom) {
nextNode = Node.getNodeFromTarget(nextDom);
nextDom2 = nextDom.nextSibling;
nextNode2 = Node.getNodeFromTarget(nextDom2);
if (nextNode && nextNode instanceof AppendNode &&
!(lastNode.parent.childs.length == 1) &&
nextNode2 && nextNode2.parent) {
oldSelection = this.editor.getSelection();
oldBeforeNode = lastNode._nextSibling();
selectedNodes.forEach(function (node) {
nextNode2.parent.moveBefore(node, nextNode2);
});
this.focus(Node.focusElement || this._getElementName(target));
this.editor._onAction('moveNodes', {
nodes: selectedNodes,
oldBeforeNode: oldBeforeNode,
newBeforeNode: nextNode2,
oldSelection: oldSelection,
newSelection: this.editor.getSelection()
});
}
}
}
}
else if (keynum == 38) { // Arrow Up
if (altKey && !shiftKey) { // Alt + Arrow Up
// find the previous node
prevNode = this._previousNode();
if (prevNode) {
this.editor.deselect(true);
prevNode.focus(Node.focusElement || this._getElementName(target));
}
handled = true;
}
else if (!altKey && ctrlKey && shiftKey && editable) { // Ctrl + Shift + Arrow Up
// select multiple nodes
prevNode = this._previousNode();
if (prevNode) {
multiselection = this.editor.multiselection;
multiselection.start = multiselection.start || this;
multiselection.end = prevNode;
nodes = this.editor._findTopLevelNodes(multiselection.start, multiselection.end);
this.editor.select(nodes);
prevNode.focus('field'); // select field as we know this always exists
}
handled = true;
}
else if (altKey && shiftKey && editable) { // Alt + Shift + Arrow Up
// find the previous node
prevNode = firstNode._previousNode();
if (prevNode && prevNode.parent) {
oldSelection = this.editor.getSelection();
oldBeforeNode = lastNode._nextSibling();
selectedNodes.forEach(function (node) {
prevNode.parent.moveBefore(node, prevNode);
});
this.focus(Node.focusElement || this._getElementName(target));
this.editor._onAction('moveNodes', {
nodes: selectedNodes,
oldBeforeNode: oldBeforeNode,
newBeforeNode: prevNode,
oldSelection: oldSelection,
newSelection: this.editor.getSelection()
});
}
handled = true;
}
}
else if (keynum == 39) { // Arrow Right
if (altKey && !shiftKey) { // Alt + Arrow Right
// move to right element
var nextElement = this._nextElement(target);
if (nextElement) {
this.focus(this._getElementName(nextElement));
}
handled = true;
}
else if (altKey && shiftKey && editable) { // Alt + Shift + Arrow Right
dom = firstNode.getDom();
var prevDom = dom.previousSibling;
if (prevDom) {
prevNode = Node.getNodeFromTarget(prevDom);
if (prevNode && prevNode.parent &&
(prevNode instanceof AppendNode)
&& !prevNode.isVisible()) {
oldSelection = this.editor.getSelection();
oldBeforeNode = lastNode._nextSibling();
selectedNodes.forEach(function (node) {
prevNode.parent.moveBefore(node, prevNode);
});
this.focus(Node.focusElement || this._getElementName(target));
this.editor._onAction('moveNodes', {
nodes: selectedNodes,
oldBeforeNode: oldBeforeNode,
newBeforeNode: prevNode,
oldSelection: oldSelection,
newSelection: this.editor.getSelection()
});
}
}
}
}
else if (keynum == 40) { // Arrow Down
if (altKey && !shiftKey) { // Alt + Arrow Down
// find the next node
nextNode = this._nextNode();
if (nextNode) {
this.editor.deselect(true);
nextNode.focus(Node.focusElement || this._getElementName(target));
}
handled = true;
}
else if (!altKey && ctrlKey && shiftKey && editable) { // Ctrl + Shift + Arrow Down
// select multiple nodes
nextNode = this._nextNode();
if (nextNode) {
multiselection = this.editor.multiselection;
multiselection.start = multiselection.start || this;
multiselection.end = nextNode;
nodes = this.editor._findTopLevelNodes(multiselection.start, multiselection.end);
this.editor.select(nodes);
nextNode.focus('field'); // select field as we know this always exists
}
handled = true;
}
else if (altKey && shiftKey && editable) { // Alt + Shift + Arrow Down
// find the 2nd next node and move before that one
if (lastNode.expanded) {
nextNode = lastNode.append ? lastNode.append._nextNode() : undefined;
}
else {
nextNode = lastNode._nextNode();
}
var nextNode2 = nextNode && (nextNode._nextNode() || nextNode.parent.append);
if (nextNode2 && nextNode2.parent) {
oldSelection = this.editor.getSelection();
oldBeforeNode = lastNode._nextSibling();
selectedNodes.forEach(function (node) {
nextNode2.parent.moveBefore(node, nextNode2);
});
this.focus(Node.focusElement || this._getElementName(target));
this.editor._onAction('moveNodes', {
nodes: selectedNodes,
oldBeforeNode: oldBeforeNode,
newBeforeNode: nextNode2,
oldSelection: oldSelection,
newSelection: this.editor.getSelection()
});
}
handled = true;
}
}
if (handled) {
event.preventDefault();
event.stopPropagation();
}
};
/**
* Handle the expand event, when clicked on the expand button
* @param {boolean} recurse If true, child nodes will be expanded too
* @private
*/
Node.prototype._onExpand = function (recurse) {
if (recurse) {
// Take the table offline
var table = this.dom.tr.parentNode; // TODO: not nice to access the main table like this
var frame = table.parentNode;
var scrollTop = frame.scrollTop;
frame.removeChild(table);
}
if (this.expanded) {
this.collapse(recurse);
}
else {
this.expand(recurse);
}
if (recurse) {
// Put the table online again
frame.appendChild(table);
frame.scrollTop = scrollTop;
}
};
/**
* Remove nodes
* @param {Node[] | Node} nodes
*/
Node.onRemove = function(nodes) {
if (!Array.isArray(nodes)) {
return Node.onRemove([nodes]);
}
if (nodes && nodes.length > 0) {
var firstNode = nodes[0];
var parent = firstNode.parent;
var editor = firstNode.editor;
var firstIndex = firstNode.getIndex();
editor.highlighter.unhighlight();
// adjust the focus
var oldSelection = editor.getSelection();
Node.blurNodes(nodes);
var newSelection = editor.getSelection();
// remove the nodes
nodes.forEach(function (node) {
node.parent._remove(node);
});
// store history action
editor._onAction('removeNodes', {
nodes: nodes.slice(0), // store a copy of the array!
parent: parent,
index: firstIndex,
oldSelection: oldSelection,
newSelection: newSelection
});
}
};
/**
* Duplicate nodes
* duplicated nodes will be added right after the original nodes
* @param {Node[] | Node} nodes
*/
Node.onDuplicate = function(nodes) {
if (!Array.isArray(nodes)) {
return Node.onDuplicate([nodes]);
}
if (nodes && nodes.length > 0) {
var lastNode = nodes[nodes.length - 1];
var parent = lastNode.parent;
var editor = lastNode.editor;
editor.deselect(editor.multiselection.nodes);
// duplicate the nodes
var oldSelection = editor.getSelection();
var afterNode = lastNode;
var clones = nodes.map(function (node) {
var clone = node.clone();
parent.insertAfter(clone, afterNode);
afterNode = clone;
return clone;
});
// set selection to the duplicated nodes
if (nodes.length === 1) {
clones[0].focus();
}
else {
editor.select(clones);
}
var newSelection = editor.getSelection();
editor._onAction('duplicateNodes', {
afterNode: lastNode,
nodes: clones,
parent: parent,
oldSelection: oldSelection,
newSelection: newSelection
});
}
};
/**
* Handle insert before event
* @param {String} [field]
* @param {*} [value]
* @param {String} [type] Can be 'auto', 'array', 'object', or 'string'
* @private
*/
Node.prototype._onInsertBefore = function (field, value, type) {
var oldSelection = this.editor.getSelection();
var newNode = new Node(this.editor, {
field: (field != undefined) ? field : '',
value: (value != undefined) ? value : '',
type: type
});
newNode.expand(true);
this.parent.insertBefore(newNode, this);
this.editor.highlighter.unhighlight();
newNode.focus('field');
var newSelection = this.editor.getSelection();
this.editor._onAction('insertBeforeNodes', {
nodes: [newNode],
beforeNode: this,
parent: this.parent,
oldSelection: oldSelection,
newSelection: newSelection
});
};
/**
* Handle insert after event
* @param {String} [field]
* @param {*} [value]
* @param {String} [type] Can be 'auto', 'array', 'object', or 'string'
* @private
*/
Node.prototype._onInsertAfter = function (field, value, type) {
var oldSelection = this.editor.getSelection();
var newNode = new Node(this.editor, {
field: (field != undefined) ? field : '',
value: (value != undefined) ? value : '',
type: type
});
newNode.expand(true);
this.parent.insertAfter(newNode, this);
this.editor.highlighter.unhighlight();
newNode.focus('field');
var newSelection = this.editor.getSelection();
this.editor._onAction('insertAfterNodes', {
nodes: [newNode],
afterNode: this,
parent: this.parent,
oldSelection: oldSelection,
newSelection: newSelection
});
};
/**
* Handle append event
* @param {String} [field]
* @param {*} [value]
* @param {String} [type] Can be 'auto', 'array', 'object', or 'string'
* @private
*/
Node.prototype._onAppend = function (field, value, type) {
var oldSelection = this.editor.getSelection();
var newNode = new Node(this.editor, {
field: (field != undefined) ? field : '',
value: (value != undefined) ? value : '',
type: type
});
newNode.expand(true);
this.parent.appendChild(newNode);
this.editor.highlighter.unhighlight();
newNode.focus('field');
var newSelection = this.editor.getSelection();
this.editor._onAction('appendNodes', {
nodes: [newNode],
parent: this.parent,
oldSelection: oldSelection,
newSelection: newSelection
});
};
/**
* Change the type of the node's value
* @param {String} newType
* @private
*/
Node.prototype._onChangeType = function (newType) {
var oldType = this.type;
if (newType != oldType) {
var oldSelection = this.editor.getSelection();
this.changeType(newType);
var newSelection = this.editor.getSelection();
this.editor._onAction('changeType', {
node: this,
oldType: oldType,
newType: newType,
oldSelection: oldSelection,
newSelection: newSelection
});
}
};
/**
* Sort the child's of the node. Only applicable when the node has type 'object'
* or 'array'.
* @param {String} direction Sorting direction. Available values: "asc", "desc"
* @private
*/
Node.prototype.sort = function (direction) {
if (!this._hasChilds()) {
return;
}
var order = (direction == 'desc') ? -1 : 1;
var prop = (this.type == 'array') ? 'value': 'field';
this.hideChilds();
var oldChilds = this.childs;
var oldSortOrder = this.sortOrder;
// copy the array (the old one will be kept for an undo action
this.childs = this.childs.concat();
// sort the arrays
this.childs.sort(function (a, b) {
return order * naturalSort(a[prop], b[prop]);
});
this.sortOrder = (order == 1) ? 'asc' : 'desc';
this.editor._onAction('sort', {
node: this,
oldChilds: oldChilds,
oldSort: oldSortOrder,
newChilds: this.childs,
newSort: this.sortOrder
});
this.showChilds();
};
/**
* Create a table row with an append button.
* @return {HTMLElement | undefined} buttonAppend or undefined when inapplicable
*/
Node.prototype.getAppend = function () {
if (!this.append) {
this.append = new AppendNode(this.editor);
this.append.setParent(this);
}
return this.append.getDom();
};
/**
* Find the node from an event target
* @param {Node} target
* @return {Node | undefined} node or undefined when not found
* @static
*/
Node.getNodeFromTarget = function (target) {
while (target) {
if (target.node) {
return target.node;
}
target = target.parentNode;
}
return undefined;
};
/**
* Remove the focus of given nodes, and move the focus to the (a) node before,
* (b) the node after, or (c) the parent node.
* @param {Array.<Node> | Node} nodes
*/
Node.blurNodes = function (nodes) {
if (!Array.isArray(nodes)) {
Node.blurNodes([nodes]);
return;
}
var firstNode = nodes[0];
var parent = firstNode.parent;
var firstIndex = firstNode.getIndex();
if (parent.childs[firstIndex + nodes.length]) {
parent.childs[firstIndex + nodes.length].focus();
}
else if (parent.childs[firstIndex - 1]) {
parent.childs[firstIndex - 1].focus();
}
else {
parent.focus();
}
};
/**
* Get the next sibling of current node
* @return {Node} nextSibling
* @private
*/
Node.prototype._nextSibling = function () {
var index = this.parent.childs.indexOf(this);
return this.parent.childs[index + 1] || this.parent.append;
};
/**
* Get the previously rendered node
* @return {Node | null} previousNode
* @private
*/
Node.prototype._previousNode = function () {
var prevNode = null;
var dom = this.getDom();
if (dom && dom.parentNode) {
// find the previous field
var prevDom = dom;
do {
prevDom = prevDom.previousSibling;
prevNode = Node.getNodeFromTarget(prevDom);
}
while (prevDom && (prevNode instanceof AppendNode && !prevNode.isVisible()));
}
return prevNode;
};
/**
* Get the next rendered node
* @return {Node | null} nextNode
* @private
*/
Node.prototype._nextNode = function () {
var nextNode = null;
var dom = this.getDom();
if (dom && dom.parentNode) {
// find the previous field
var nextDom = dom;
do {
nextDom = nextDom.nextSibling;
nextNode = Node.getNodeFromTarget(nextDom);
}
while (nextDom && (nextNode instanceof AppendNode && !nextNode.isVisible()));
}
return nextNode;
};
/**
* Get the first rendered node
* @return {Node | null} firstNode
* @private
*/
Node.prototype._firstNode = function () {
var firstNode = null;
var dom = this.getDom();
if (dom && dom.parentNode) {
var firstDom = dom.parentNode.firstChild;
firstNode = Node.getNodeFromTarget(firstDom);
}
return firstNode;
};
/**
* Get the last rendered node
* @return {Node | null} lastNode
* @private
*/
Node.prototype._lastNode = function () {
var lastNode = null;
var dom = this.getDom();
if (dom && dom.parentNode) {
var lastDom = dom.parentNode.lastChild;
lastNode = Node.getNodeFromTarget(lastDom);
while (lastDom && (lastNode instanceof AppendNode && !lastNode.isVisible())) {
lastDom = lastDom.previousSibling;
lastNode = Node.getNodeFromTarget(lastDom);
}
}
return lastNode;
};
/**
* Get the next element which can have focus.
* @param {Element} elem
* @return {Element | null} nextElem
* @private
*/
Node.prototype._previousElement = function (elem) {
var dom = this.dom;
// noinspection FallthroughInSwitchStatementJS
switch (elem) {
case dom.value:
if (this.fieldEditable) {
return dom.field;
}
// intentional fall through
case dom.field:
if (this._hasChilds()) {
return dom.expand;
}
// intentional fall through
case dom.expand:
return dom.menu;
case dom.menu:
if (dom.drag) {
return dom.drag;
}
// intentional fall through
default:
return null;
}
};
/**
* Get the next element which can have focus.
* @param {Element} elem
* @return {Element | null} nextElem
* @private
*/
Node.prototype._nextElement = function (elem) {
var dom = this.dom;
// noinspection FallthroughInSwitchStatementJS
switch (elem) {
case dom.drag:
return dom.menu;
case dom.menu:
if (this._hasChilds()) {
return dom.expand;
}
// intentional fall through
case dom.expand:
if (this.fieldEditable) {
return dom.field;
}
// intentional fall through
case dom.field:
if (!this._hasChilds()) {
return dom.value;
}
default:
return null;
}
};
/**
* Get the dom name of given element. returns null if not found.
* For example when element == dom.field, "field" is returned.
* @param {Element} element
* @return {String | null} elementName Available elements with name: 'drag',
* 'menu', 'expand', 'field', 'value'
* @private
*/
Node.prototype._getElementName = function (element) {
var dom = this.dom;
for (var name in dom) {
if (dom.hasOwnProperty(name)) {
if (dom[name] == element) {
return name;
}
}
}
return null;
};
/**
* Test if this node has childs. This is the case when the node is an object
* or array.
* @return {boolean} hasChilds
* @private
*/
Node.prototype._hasChilds = function () {
return this.type == 'array' || this.type == 'object';
};
// titles with explanation for the different types
Node.TYPE_TITLES = {
'auto': 'Field type "auto". ' +
'The field type is automatically determined from the value ' +
'and can be a string, number, boolean, or null.',
'object': 'Field type "object". ' +
'An object contains an unordered set of key/value pairs.',
'array': 'Field type "array". ' +
'An array contains an ordered collection of values.',
'string': 'Field type "string". ' +
'Field type is not determined from the value, ' +
'but always returned as string.'
};
/**
* Show a contextmenu for this node
* @param {HTMLElement} anchor Anchor element to attach the context menu to
* as sibling.
* @param {function} [onClose] Callback method called when the context menu
* is being closed.
*/
Node.prototype.showContextMenu = function (anchor, onClose) {
var node = this;
var titles = Node.TYPE_TITLES;
var items = [];
if (this.editable.value) {
items.push({
text: 'Type',
title: 'Change the type of this field',
className: 'jsoneditor-type-' + this.type,
submenu: [
{
text: 'Auto',
className: 'jsoneditor-type-auto' +
(this.type == 'auto' ? ' jsoneditor-selected' : ''),
title: titles.auto,
click: function () {
node._onChangeType('auto');
}
},
{
text: 'Array',
className: 'jsoneditor-type-array' +
(this.type == 'array' ? ' jsoneditor-selected' : ''),
title: titles.array,
click: function () {
node._onChangeType('array');
}
},
{
text: 'Object',
className: 'jsoneditor-type-object' +
(this.type == 'object' ? ' jsoneditor-selected' : ''),
title: titles.object,
click: function () {
node._onChangeType('object');
}
},
{
text: 'String',
className: 'jsoneditor-type-string' +
(this.type == 'string' ? ' jsoneditor-selected' : ''),
title: titles.string,
click: function () {
node._onChangeType('string');
}
}
]
});
}
if (this._hasChilds()) {
var direction = ((this.sortOrder == 'asc') ? 'desc': 'asc');
items.push({
text: 'Sort',
title: 'Sort the childs of this ' + this.type,
className: 'jsoneditor-sort-' + direction,
click: function () {
node.sort(direction);
},
submenu: [
{
text: 'Ascending',
className: 'jsoneditor-sort-asc',
title: 'Sort the childs of this ' + this.type + ' in ascending order',
click: function () {
node.sort('asc');
}
},
{
text: 'Descending',
className: 'jsoneditor-sort-desc',
title: 'Sort the childs of this ' + this.type +' in descending order',
click: function () {
node.sort('desc');
}
}
]
});
}
if (this.parent && this.parent._hasChilds()) {
if (items.length) {
// create a separator
items.push({
'type': 'separator'
});
}
// create append button (for last child node only)
var childs = node.parent.childs;
if (node == childs[childs.length - 1]) {
items.push({
text: 'Append',
title: 'Append a new field with type \'auto\' after this field (Ctrl+Shift+Ins)',
submenuTitle: 'Select the type of the field to be appended',
className: 'jsoneditor-append',
click: function () {
node._onAppend('', '', 'auto');
},
submenu: [
{
text: 'Auto',
className: 'jsoneditor-type-auto',
title: titles.auto,
click: function () {
node._onAppend('', '', 'auto');
}
},
{
text: 'Array',
className: 'jsoneditor-type-array',
title: titles.array,
click: function () {
node._onAppend('', []);
}
},
{
text: 'Object',
className: 'jsoneditor-type-object',
title: titles.object,
click: function () {
node._onAppend('', {});
}
},
{
text: 'String',
className: 'jsoneditor-type-string',
title: titles.string,
click: function () {
node._onAppend('', '', 'string');
}
}
]
});
}
// create insert button
items.push({
text: 'Insert',
title: 'Insert a new field with type \'auto\' before this field (Ctrl+Ins)',
submenuTitle: 'Select the type of the field to be inserted',
className: 'jsoneditor-insert',
click: function () {
node._onInsertBefore('', '', 'auto');
},
submenu: [
{
text: 'Auto',
className: 'jsoneditor-type-auto',
title: titles.auto,
click: function () {
node._onInsertBefore('', '', 'auto');
}
},
{
text: 'Array',
className: 'jsoneditor-type-array',
title: titles.array,
click: function () {
node._onInsertBefore('', []);
}
},
{
text: 'Object',
className: 'jsoneditor-type-object',
title: titles.object,
click: function () {
node._onInsertBefore('', {});
}
},
{
text: 'String',
className: 'jsoneditor-type-string',
title: titles.string,
click: function () {
node._onInsertBefore('', '', 'string');
}
}
]
});
if (this.editable.field) {
// create duplicate button
items.push({
text: 'Duplicate',
title: 'Duplicate this field (Ctrl+D)',
className: 'jsoneditor-duplicate',
click: function () {
Node.onDuplicate(node);
}
});
// create remove button
items.push({
text: 'Remove',
title: 'Remove this field (Ctrl+Del)',
className: 'jsoneditor-remove',
click: function () {
Node.onRemove(node);
}
});
}
}
var menu = new ContextMenu(items, {close: onClose});
menu.show(anchor, this.editor.content);
};
/**
* get the type of a value
* @param {*} value
* @return {String} type Can be 'object', 'array', 'string', 'auto'
* @private
*/
Node.prototype._getType = function(value) {
if (value instanceof Array) {
return 'array';
}
if (value instanceof Object) {
return 'object';
}
if (typeof(value) == 'string' && typeof(this._stringCast(value)) != 'string') {
return 'string';
}
return 'auto';
};
/**
* cast contents of a string to the correct type. This can be a string,
* a number, a boolean, etc
* @param {String} str
* @return {*} castedStr
* @private
*/
Node.prototype._stringCast = function(str) {
var lower = str.toLowerCase(),
num = Number(str), // will nicely fail with '123ab'
numFloat = parseFloat(str); // will nicely fail with ' '
if (str == '') {
return '';
}
else if (lower == 'null') {
return null;
}
else if (lower == 'true') {
return true;
}
else if (lower == 'false') {
return false;
}
else if (!isNaN(num) && !isNaN(numFloat)) {
return num;
}
else {
return str;
}
};
/**
* escape a text, such that it can be displayed safely in an HTML element
* @param {String} text
* @return {String} escapedText
* @private
*/
Node.prototype._escapeHTML = function (text) {
if (typeof text !== 'string') {
return String(text);
}
else {
var htmlEscaped = String(text)
.replace(/&/g, '&amp;') // must be replaced first!
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/ /g, ' &nbsp;') // replace double space with an nbsp and space
.replace(/^ /, '&nbsp;') // space at start
.replace(/ $/, '&nbsp;'); // space at end
var json = JSON.stringify(htmlEscaped);
var html = json.substring(1, json.length - 1);
if (this.editor.options.escapeUnicode === true) {
html = util.escapeUnicodeChars(html);
}
return html;
}
};
/**
* unescape a string.
* @param {String} escapedText
* @return {String} text
* @private
*/
Node.prototype._unescapeHTML = function (escapedText) {
var json = '"' + this._escapeJSON(escapedText) + '"';
var htmlEscaped = util.parse(json);
return htmlEscaped
.replace(/&lt;/g, '<')
.replace(/&gt;/g, '>')
.replace(/&nbsp;|\u00A0/g, ' ')
.replace(/&amp;/g, '&'); // must be replaced last
};
/**
* escape a text to make it a valid JSON string. The method will:
* - replace unescaped double quotes with '\"'
* - replace unescaped backslash with '\\'
* - replace returns with '\n'
* @param {String} text
* @return {String} escapedText
* @private
*/
Node.prototype._escapeJSON = function (text) {
// TODO: replace with some smart regex (only when a new solution is faster!)
var escaped = '';
var i = 0;
while (i < text.length) {
var c = text.charAt(i);
if (c == '\n') {
escaped += '\\n';
}
else if (c == '\\') {
escaped += c;
i++;
c = text.charAt(i);
if (c === '' || '"\\/bfnrtu'.indexOf(c) == -1) {
escaped += '\\'; // no valid escape character
}
escaped += c;
}
else if (c == '"') {
escaped += '\\"';
}
else {
escaped += c;
}
i++;
}
return escaped;
};
// TODO: find a nicer solution to resolve this circular dependency between Node and AppendNode
var AppendNode = appendNodeFactory(Node);
module.exports = Node;