jsoneditor/jsoneditor.js

2459 lines
64 KiB
JavaScript

/**
* @file jsoneditor.js
*
* @brief
* JSONEditor is an editor to display and edit JSON data in a treeview.
*
* Supported browsers: Chrome, Firefox, Safari, Opera, Internet Explorer 8+
*
* @license
* This json editor is open sourced with the intention to use the editor as
* a component in your own application. Not to just copy and monetize the editor
* as it is.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*
* Copyright (c) 2011-2012 Jos de Jong, http://jsoneditoronline.org
*
* @author Jos de Jong, <wjosdejong@gmail.com>
* @date 2012-04-21
*/
// Internet Explorer 8 and older does not support Array.indexOf,
// so we define it here in that case
// http://soledadpenades.com/2007/05/17/arrayindexof-in-internet-explorer/
if(!Array.prototype.indexOf) {
Array.prototype.indexOf = function(obj){
for(var i = 0; i < this.length; i++){
if(this[i] == obj){
return i;
}
}
return -1;
}
}
// define variable JSON, needed for correct error handling on IE7 and older
var JSON;
/**
* JSONEditor
* @param {HTML DOM} container Container element
* @param {Object or Array} json JSON object
*/
JSONEditor = function (container, json) {
// check availability of JSON parser (not available in IE7 and older)
if (!JSON) {
throw new Error ('Your browser does not support JSON. \n\n' +
'Please install the newest version of your browser.\n' +
'(all modern browsers support JSON).');
}
if (!container) {
throw new Error('No container element provided.');
}
this.container = container;
this._createFrame();
this._createTable();
this.set(json || {});
}
// node currently being edited
JSONEditor.focusNode = undefined;
/**
* Set JSON object in editor
* @param {Object} json
*/
JSONEditor.prototype.set = function (json) {
this.content.removeChild(this.table); // Take the table offline
// replace the root node
var node = new JSONEditor.Node({
'value': json
});
this._setRoot(node);
// expand
var recurse = false;
this.node.expand(recurse);
this.content.appendChild(this.table); // Put the table online again
}
/**
* Get JSON object from editor
* @return {Object} json
*/
JSONEditor.prototype.get = function () {
// remove focus from currently edited node
if (JSONEditor.focusNode) {
JSONEditor.focusNode.blur();
}
if (this.node) {
return this.node.getValue();
}
else {
return {};
}
}
/**
* Remove the root node from the editor
*/
JSONEditor.prototype.clear = function () {
if (this.node) {
this.node.collapse();
this.tbody.removeChild(this.node.getDom());
delete this.node;
}
}
/**
* Set the root node for the json editor
* @param {JSONEditor.Node} node
*/
JSONEditor.prototype._setRoot = function (node) {
this.clear();
this.node = node;
this.tbody.appendChild(node.getDom());
}
/**
* Expand all nodes
*/
JSONEditor.prototype.expandAll = function () {
if (this.node) {
this.content.removeChild(this.table); // Take the table offline
this.node.expand();
this.content.appendChild(this.table); // Put the table online again
}
}
/**
* Collapse all nodes
*/
JSONEditor.prototype.collapseAll = function () {
if (this.node) {
this.content.removeChild(this.table); // Take the table offline
this.node.collapse();
this.content.appendChild(this.table); // Put the table online again
}
}
/**
* Create a new Node
* @param {Object} params Can contain parameters: field, fieldEditable, value.
*/
JSONEditor.Node = function (params) {
this.dom = {};
this.expanded = false;
if(params && (params instanceof Object)) {
this.setField(params.field, params.fieldEditable);
this.setValue(params.value);
}
else {
this.setField();
this.setValue();
}
}
JSONEditor.Node.prototype.setField = function(field, fieldEditable) {
this.field = field;
this.fieldEditable = (fieldEditable == true);
}
JSONEditor.Node.prototype.getField = function() {
if (this.field === undefined) {
this.field = this._getDomField();
}
return this.field;
}
JSONEditor.Node.prototype.setValue = function(value) {
// 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);
if (this.type == 'array') {
// array
this.childs = [];
for (var i = 0, iMax = value.length; i < iMax; i++) {
var child = new JSONEditor.Node({
// 'field': i, // TODO: cleanup
'value': value[i]
});
this.appendChild(child);
}
this.value = '';
}
else if (this.type == 'object') {
// object
this.childs = [];
for (var childField in value) {
if (value.hasOwnProperty(childField)) {
var child = new JSONEditor.Node({
'field': childField,
'value': value[childField]
});
this.appendChild(child);
}
}
this.value = '';
}
else {
// value
this.childs = undefined;
this.value = value;
/* TODO
if (typeof(value) == 'string') {
var escValue = JSON.stringify(value);
this.value = escValue.substring(1, escValue.length - 1);
console.log('check', value, this.value);
}
else {
this.value = value;
}
*/
}
}
JSONEditor.Node.prototype.getValue = function() {
//this._getDomValue(); // TODO: cleanup
if (this.type == 'array') {
var arr = [];
var childs = this.childs;
for (var i = 0, iMax = childs.length; i < iMax; i++) {
arr.push(childs[i].getValue());
}
return arr;
}
else if (this.type == 'object') {
var obj = {};
var childs = this.childs;
for (var i = 0, iMax = childs.length; i < iMax; i++) {
var child = childs[i];
obj[child.getField()] = child.getValue();
}
return obj;
}
else {
if (this.value === undefined) {
this.value = this._getDomValue();
}
return this.value;
}
}
/**
* Get the nesting level of this node
*/
JSONEditor.Node.prototype.getLevel = function() {
return (this.parent ? this.parent.getLevel() + 1 : 0);
}
/**
* 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 {JSONEditor.Node} clone
*/
JSONEditor.Node.prototype.clone = function() {
var clone = new JSONEditor.Node();
clone.type = this.type;
clone.field = this.field;
clone.fieldHTML = this.fieldHTML;
clone.fieldEditable = this.fieldEditable;
clone.value = this.value;
clone.valueHTML = this.valueHTML;
clone.expanded = this.expanded;
if (this.childs) {
// an object or array
var childs = this.childs;
var cloneChilds = [];
for (var i = 0, iMax = childs.length; i < iMax; i++) {
var childClone = childs[i].clone();
childClone.parent = 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
*/
JSONEditor.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();
var childs = this.childs;
if (recurse != false) {
for (var i = 0, iMax = childs.length; i < iMax; i++) {
childs[i].expand(recurse);
}
}
}
/**
* Collapse this node and optionally its childs.
* @param {Number} recurse Optional recursion, true by default. When
* true, all childs will be collapsed recursively
*/
JSONEditor.Node.prototype.collapse = function(recurse) {
if (!this.childs) {
return;
}
this.hideChilds();
// collapse childs in case of recurse
var childs = this.childs;
if (recurse != false) {
for (var i = 0, iMax = childs.length; i < iMax; i++) {
childs[i].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
*/
JSONEditor.Node.prototype.showChilds = function() {
var childs = this.childs;
if (!childs) {
return;
}
if (!this.expanded) {
return;
}
var tr = this.dom.tr;
var table = tr.parentNode;
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
for (var i = 0, iMax = childs.length; i < iMax; i++) {
var child = childs[i];
table.insertBefore(child.getDom(), append);
child.showChilds();
}
}
}
/**
* Hide the node with all its childs
*/
JSONEditor.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
*/
JSONEditor.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
for (var i = 0, iMax = childs.length; i < iMax; i++) {
childs[i].hide();
}
}
/**
* Add a new child to the node.
* Only applicable when Node value is of type array or object
* @param {JSONEditor.Node} node
*/
JSONEditor.Node.prototype.appendChild = function(node) {
if (this.type == 'array' || this.type == 'object') {
// adjust the link to the parent
node.parent = 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);
}
this._updateStatus(node.index);
node.showChilds();
}
node.updateDom();
}
}
/**
* Move an existing child from its current parent to this node
* Only applicable when Node value is of type array or object
* @param {JSONEditor.Node} node
* @param {JSONEditor.Node} beforeNode
*/
JSONEditor.Node.prototype.moveBefore = function(node, beforeNode) {
if (this.type == 'array' || this.type == 'object') {
// 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);
}
var parent = node.parent;
if (parent) {
parent.removeChild(node);
}
if (beforeNode instanceof JSONEditor.AppendNode) {
this.appendChild(node);
}
else {
this.insertBefore(node, beforeNode);
}
if (tbody) {
tbody.removeChild(trTemp);
}
}
}
/**
* Insert a new child before a given node
* Only applicable when Node value is of type array or object
* @param {JSONEditor.Node} node
* @param {JSONEditor.Node} beforeNode
*/
JSONEditor.Node.prototype.insertBefore = function(node, beforeNode) {
if (this.type == 'array' || this.type == 'object') {
if (beforeNode == this.append) {
// append to the child nodes
// adjust the link to the parent
node.parent = 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.parent = this;
node.fieldEditable = (this.type == 'object');
//node.index = index; // TODO: redundant?
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();
}
node.updateDom();
this._updateStatus(index);
}
}
/**
* Set focus to the value of this node
*/
JSONEditor.Node.prototype.focus = function() {
if (this.dom.tr && this.dom.tr.parentNode) {
if (this.fieldEditable) {
var domField = this.dom.field;
if (domField) {
domField.focus();
}
}
else {
var domValue = this.dom.value;
if (domValue) {
domValue.focus();
}
}
}
}
/**
* Remove focus from the value or field of this node
*/
JSONEditor.Node.prototype.blur = function() {
this._getDomValue(true);
this._getDomField(true);
}
/**
* Duplicate given child node
* new structure will be added right before the cloned node
* @param {JSONEditor.Node} node the childNode to be duplicated
*/
JSONEditor.Node.prototype._duplicate = function(node) {
var clone = node.clone();
/* TODO: adjust the field name (to prevent equal field names)
if (this.type == 'object') {
}
*/
// TODO: insert after instead of insert before
this.insertBefore(clone, node);
}
/**
* Check if given node is a child. The method will check recursively to find
* this node.
* @param {JSONEditor.Node} node
*/
JSONEditor.Node.prototype.containsNode = function(node) {
if (this == node) {
return true;
}
var childs = this.childs;
if (childs) {
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 {JSONEditor.Node} node the childNode to be moved
* @param {JSONEditor.Node} beforeNode node will be inserted before given
* node. If no beforeNode is given,
* the node is appended at the end
*/
JSONEditor.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 {JSONEditor.Node} node The child node to be removed;
* @return {JSONEditor.Node} node The removed node on success, else undefined
*/
JSONEditor.Node.prototype.removeChild = function(node) {
if (this.childs) {
var index = this.childs.indexOf(node);
if (index != -1) {
node.hide();
var node = this.childs.splice(index, 1)[0];
this._updateStatus(index);
return node;
}
}
return undefined;
}
/**
* change the type of the value of this Node
* @param {String} newType
*/
JSONEditor.Node.prototype._changeType = function ( newType) {
var oldType = this.type;
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 = [];
}
var childs = this.childs;
var fieldEditable = true;
for (var i = 0, iMax = childs.length; i < iMax; i++) {
var child = childs[i];
child.clearDom();
delete child.index;
child.fieldEditable = true;
if (child.field == undefined) {
child.field = i;
}
}
if (oldType == 'string' || oldType == 'auto') {
this.expanded = true;
}
}
else if (newType == 'array') {
if (!this.childs) {
this.childs = [];
}
var childs = this.childs;
var fieldEditable = false;
for (var i = 0, iMax = childs.length; i < iMax; i++) {
var child = childs[i];
child.clearDom();
child.fieldEditable = false;
child.index = i;
}
this._updateStatus();
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();
}
// TODO: test if things are updated twice...
this.updateDom();
}
/**
* Retrieve value from DOM
* @param {boolean} silent. If true (default), no errors will be thrown in
* case of invalid data
*/
JSONEditor.Node.prototype._getDomValue = function(silent) {
if (this.dom.value && this.type != 'array' && this.type != 'object') {
this.valueHTML = this.dom.value.innerHTML;
}
if (this.valueHTML != undefined) {
try {
// retrieve the value
if (this.type == 'string') {
this.value = this._unescape(this._stripHTML(this.valueHTML));
}
else {
var value = this._unescape(this._stripHTML(this.valueHTML));
this.value = this._stringCast(value);
}
}
catch (err) {
this.value = undefined;
if (silent != true) {
throw err;
}
}
}
}
/**
* Update:
* - 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
*/
JSONEditor.Node.prototype._updateDomValue = function () {
var domValue = this.dom.value;
if (domValue) {
// set text color depending on value type
var v = this.value;
var t = (this.type == 'auto') ? typeof(v) : this.type;
var color = '';
if (t == 'string') {
color = 'green';
}
else if (t == 'number') {
color = 'red';
}
else if (t == 'boolean') {
color = 'blue';
}
else if (this.type == 'object' || this.type == 'array') {
// note: typeof(null)=="object", therefore check this.type instead of t
color = '';
}
else if (v === null) {
color = 'purple';
}
else if (v === undefined) {
// invalid value
color = 'green';
}
domValue.style.color = color;
// make backgound color lightgray when empty
var isEmpty = (String(this.value) == '' && this.type != 'array' && this.type != 'object');
if (isEmpty) {
JSONEditor.addClassName(domValue, 'jsoneditor-empty');
}
else {
JSONEditor.removeClassName(domValue, 'jsoneditor-empty');
}
// strip formatting from the contents of the editable div
JSONEditor.stripFormatting(domValue);
}
}
/**
* Update:
* - 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
*/
JSONEditor.Node.prototype._updateDomField = function () {
var domField = this.dom.field;
if (domField) {
// make backgound color lightgray when empty
var isEmpty = (String(this.field) == '');
if (isEmpty) {
JSONEditor.addClassName(domField, 'jsoneditor-empty');
}
else {
JSONEditor.removeClassName(domField, 'jsoneditor-empty');
}
// strip formatting from the contents of the editable div
JSONEditor.stripFormatting(domField);
}
}
/**
* Retrieve field from DOM
* @param {boolean} silent. If true (default), no errors will be thrown in
* case of invalid data
*/
JSONEditor.Node.prototype._getDomField = function(silent) {
if (this.dom.field && this.fieldEditable) {
this.fieldHTML = this.dom.field.innerHTML;
}
if (this.fieldHTML != undefined) {
try {
this.field = this._unescape(this._stripHTML(this.fieldHTML));
}
catch (err) {
this.field = undefined;
if (silent != true) {
throw err;
}
}
}
}
/**
* Clear the dom of the node
*/
JSONEditor.Node.prototype.clearDom = function() {
// TODO: hide the node first?
//this.hide();
// TOOD: recursively clear dom?
this.dom = {};
}
/**
* Get the HTML DOM TR element of the node.
* The dom will be generated when not yet created
* @return {HTML DOM TR} tr
*/
JSONEditor.Node.prototype.getDom = function() {
var dom = this.dom;
if (dom.tr) {
return dom.tr;
}
// create row
dom.tr = document.createElement('tr');
dom.tr.className = 'jsoneditor-tr';
dom.tr.node = this;
// create dragable area
var tdDrag = document.createElement('td');
tdDrag.className = 'jsoneditor-td';
tdDrag.title = 'Move field (drag and drop)';
dom.drag = this._createDomDragArea();
if (dom.drag) {
tdDrag.appendChild(dom.drag);
}
dom.tr.appendChild(tdDrag);
// create tree and field
var tdField = document.createElement('td');
tdField.className = 'jsoneditor-td';
dom.tr.appendChild(tdField);
dom.expand = this._createDomExpandButton();
dom.field = this._createDomField();
dom.value = this._createDomValue();
dom.tree = this._createDomTree(dom.expand, dom.field, dom.value);
tdField.appendChild(dom.tree);
// create type select box
var tdType = document.createElement('td');
tdType.className = 'jsoneditor-td jsoneditor-td-edit';
dom.tr.appendChild(tdType);
dom.type = this._createDomTypeButton();
tdType.appendChild(dom.type);
// create duplicate button
var tdDuplicate = document.createElement('td');
tdDuplicate.className = 'jsoneditor-td jsoneditor-td-edit';
dom.tr.appendChild(tdDuplicate);
dom.duplicate = this._createDomDuplicateButton();
if (dom.duplicate) {
tdDuplicate.appendChild(dom.duplicate);
}
// create remove button
var tdRemove = document.createElement('td');
tdRemove.className = 'jsoneditor-td jsoneditor-td-edit';
dom.tr.appendChild(tdRemove);
dom.remove = this._createDomRemoveButton();
if (dom.remove) {
tdRemove.appendChild(dom.remove);
}
this._updateStatus();
this.updateDom();
return dom.tr;
}
/**
* DragStart event, fired on mousedown on the dragarea at the left side of a Node
*/
JSONEditor.Node.prototype._onDragStart = function (event) {
var event = event || window.event;
// remove focus from currently edited node
if (JSONEditor.focusNode) {
JSONEditor.focusNode.blur();
}
var node = this;
if (!this.mousemove) {
this.mousemove = JSONEditor.Events.addEventListener(document, 'mousemove',
function (event) {
node._onDrag(event);
});
}
if (!this.mouseup) {
this.mouseup = JSONEditor.Events.addEventListener(document, 'mouseup',
function (event ) {
node._onDragEnd(event);
});
}
/* TODO: correct highlighting when the TypeDropDown is visible (And has highlighting locked)
if (JSONEditor.freezeHighlight) {
console.log('heee');
JSONEditor.freezeHighlight = false;
this.setHighlight(true);
}
*/
JSONEditor.freezeHighlight = true;
this.oldCursor = document.body.style.cursor;
document.body.style.cursor = 'move';
JSONEditor.Events.preventDefault(event);
}
/**
* Drag event, fired when moving the mouse while dragging a Node
*/
JSONEditor.Node.prototype._onDrag = function (event) {
var event = event || window.event;
var trThis = this.dom.tr;
// TODO: add an ESC option, which resets to the original position
var topThis = JSONEditor.getAbsoluteTop(trThis);
var heightThis = trThis.offsetHeight;
var mouseY = event.pageY || (event.clientY + document.body.scrollTop);
if (mouseY < topThis) {
// move up
var trPrev = trThis.previousSibling;
var topPrev = JSONEditor.getAbsoluteTop(trPrev);
var nodePrev = JSONEditor.getNodeFromTarget(trPrev);
while (trPrev && mouseY < topPrev) {
nodePrev = JSONEditor.getNodeFromTarget(trPrev);
trPrev = trPrev.previousSibling;
topPrev = JSONEditor.getAbsoluteTop(trPrev);
}
if (nodePrev) {
trPrev = nodePrev.dom.tr;
topPrev = JSONEditor.getAbsoluteTop(trPrev);
if (mouseY > topPrev + heightThis) {
nodePrev = undefined;
}
}
if (nodePrev && nodePrev.parent) {
nodePrev.parent.moveBefore(this, nodePrev);
}
}
else {
// move down
var trLast = this.append ? this.append.getDom() : this.dom.tr;
var trFirst = trLast ? trLast.nextSibling : undefined;
if (trFirst) {
var topFirst = JSONEditor.getAbsoluteTop(trFirst);
var nodeNext = undefined;
var trNext = trFirst.nextSibling;
var topNext = JSONEditor.getAbsoluteTop(trNext);
var heightNext = trNext ? (topNext - topFirst) : 0;
while (trNext && mouseY > topThis + heightNext) {
nodeNext = JSONEditor.getNodeFromTarget(trNext);
trNext = trNext.nextSibling;
topNext = JSONEditor.getAbsoluteTop(trNext);
heightNext = trNext ? (topNext - topFirst) : 0;
}
if (nodeNext && nodeNext.parent) {
nodeNext.parent.moveBefore(this, nodeNext);
}
}
}
JSONEditor.Events.preventDefault(event);
}
/**
* Drag event, fired on mouseup after having dragged a node
*/
JSONEditor.Node.prototype._onDragEnd = function (event) {
var event = event || window.event;
document.body.style.cursor = this.oldCursor;
delete JSONEditor.freezeHighlight;
delete this.oldCursor;
this.setHighlight(false);
if (this.mousemove) {
JSONEditor.Events.removeEventListener(document, 'mousemove', this.mousemove);
delete this.mousemove;
}
if (this.mouseup) {
JSONEditor.Events.removeEventListener(document, 'mouseup', this.mouseup);
delete this.mouseup;
}
JSONEditor.Events.preventDefault(event);
}
/**
* Create a drag area, displayed at the left side of the node
*/
JSONEditor.Node.prototype._createDomDragArea = function () {
if (!this.parent) {
return undefined;
}
var node = this;
var domDrag = document.createElement('button');
domDrag.className = 'jsoneditor-dragarea';
return domDrag;
}
/**
* Create an editable field
* @param {Object} structure
*/
JSONEditor.Node.prototype._createDomField = function () {
var domField = document.createElement('div');
return domField;
}
/**
* Set highlighting for this node and all its childs.
* Only applied to the currently visible (expanded childs)
* @param {Boolean} highlight
*/
JSONEditor.Node.prototype.setHighlight = function (highlight) {
if (JSONEditor.freezeHighlight) {
return;
}
if (this.dom.tr) {
this.dom.tr.className = 'jsoneditor-tr' + (highlight ? ' jsoneditor-tr-highlight' : '');
if (this.append) {
this.append.setHighlight(highlight);
}
var childs = this.childs;
if (childs) {
for (var i = 0, iMax = childs.length; i < iMax; i++) {
childs[i].setHighlight(highlight);
}
}
}
}
/**
* Update the HTML DOM
*/
// TODO: merge updateDom and _updateStatus
JSONEditor.Node.prototype.updateDom = function () {
// update level indentation
var domTree = this.dom.tree;
if (domTree) {
domTree.style.marginLeft = this.getLevel() * 24 + 'px';
}
// update field
var domField = this.dom.field;
if (domField) {
if (this.fieldEditable == true) {
// parent is an object
domField.contentEditable = 'true';
domField.spellcheck = false;
domField.className = 'jsoneditor-field';
}
else {
// parent is an array this is the root node
domField.className = 'jsoneditor-readonly';
}
var field;
if (this.index != undefined) {
field = this.index;
}
else if (this.field != undefined) {
field = this.field;
}
else if (this.type == 'array' || this.type == 'object') {
field = this.type;
}
else {
field = 'field';
}
domField.innerHTML = this._escape(field);
}
// update field and value
this._updateDomField();
this._updateDomValue();
// update childs recursively
if (this.childs) {
var childs = this.childs;
for (var i = 0, iMax = childs.length; i < iMax; i++) {
childs[i].updateDom();
}
}
// update row with append button
if (this.append) {
this.append.updateDom();
}
}
/**
* Update the title of the given structure.
* Only applicable when structure is an array or object
* @param {Number} startIndex Optional. Index of the first child to be updated
* Only applicable in case of array
*/
JSONEditor.Node.prototype._updateStatus = function (startIndex) {
var domValue = this.dom.value;
var childs = this.childs;
if (domValue && childs) {
var count = childs.length;
if (this.type == 'array') {
domValue.innerHTML = '[' + count + ']';
// update the field indexes of the childs
for (var i = (startIndex > 0 ? startIndex : 0), iMax = childs.length; i < iMax; i++) {
var child = childs[i];
child.index = i;
var childField = child.dom.field;
if (childField) {
childField.innerHTML = i;
}
}
}
else if (this.type == 'object') {
domValue.innerHTML = '{' + count + '}';
for (var i = (startIndex > 0 ? startIndex : 0), iMax = childs.length; i < iMax; i++) {
var child = childs[i];
if (child.index != undefined) {
delete child.index; // TODO: this should be done when changing type only?
if (child.field == undefined) {
child.field = 'field';
}
child.updateDom();
}
}
}
domValue.title = this.type + ' containing ' + count + ' items';
}
}
/**
* Create an editable value
* @param {JSON} value
*/
JSONEditor.Node.prototype._createDomValue = function () {
var domValue;
if (this.type == 'array') {
domValue = document.createElement('div');
domValue.className = 'jsoneditor-readonly';
domValue.innerHTML = '[...]';
}
else if (this.type == 'object') {
domValue = document.createElement('div');
domValue.className = 'jsoneditor-readonly';
domValue.innerHTML = '{...}';
}
else if (this.type == 'string') {
domValue = document.createElement('div');
domValue.contentEditable = 'true';
domValue.spellcheck = false;
domValue.className = 'jsoneditor-value';
domValue.innerHTML = this._escape(this.value);
}
else {
domValue = document.createElement('div');
domValue.contentEditable = 'true';
domValue.spellcheck = false;
domValue.className = 'jsoneditor-value';
domValue.innerHTML = this._escape(this.value);
}
// TODO: in FF spellcheck of editable divs is done via the body. quite ugly
// document.body.spellcheck = false;
return domValue;
}
/**
* Create an expand/collapse button
*/
JSONEditor.Node.prototype._createDomExpandButton = function () {
var node = this;
// create expand button
var expand = document.createElement('button');
var expandable = (this.type == 'array' || this.type == 'object');
if (expandable) {
expand.className = this.expanded ? 'jsoneditor-expanded' : 'jsoneditor-collapsed';
expand.title =
'Click to expand/collapse this field. \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
* @param {HTML Element} domExpand
* @param {HTML Element} domField
* @param {HTML Element} domValue
*/
JSONEditor.Node.prototype._createDomTree = function (domExpand, domField, domValue) {
var dom = this.dom;
var domTree = document.createElement('table');
var tbody = document.createElement('tbody');
domTree.style.borderCollapse = 'collapse'; // TODO: put in css
domTree.appendChild(tbody);
var tr = document.createElement('tr');
tbody.appendChild(tr);
// create expand button
var tdExpand = document.createElement('td');
tdExpand.className = 'jsoneditor-td-tree';
tr.appendChild(tdExpand);
tdExpand.appendChild(domExpand);
dom.tdExpand = tdExpand;
// add the field
var tdField = document.createElement('td');
tdField.className = 'jsoneditor-td-tree';
tr.appendChild(tdField);
tdField.appendChild(domField);
dom.tdField = tdField;
// add a separator
// TODO: format correctly. Hide in case of array/object
var tdSeparator = document.createElement('td');
tdSeparator.className = 'jsoneditor-td-tree';
tr.appendChild(tdSeparator);
if (this.type != 'object' && this.type != 'array') {
tdSeparator.appendChild(document.createTextNode(':'));
tdSeparator.className = 'jsoneditor-separator';
}
dom.tdSeparator = tdSeparator;
// add the value
var tdValue = document.createElement('td');
tdValue.className = 'jsoneditor-td-tree';
tr.appendChild(tdValue);
tdValue.appendChild(domValue);
dom.tdValue = tdValue;
return domTree;
}
/**
* Handle an event. The event is catched centrally by the editor
* @param {HTML Event} event
*/
JSONEditor.Node.prototype.onEvent = function (event) {
var type = event.type;
var target = event.target || event.srcElement;
var dom = this.dom;
var node = this;
var expandable = (this.type == 'array' || this.type == 'object');
// value events
var domValue = dom.value;
if (target == domValue) {
switch (type) {
case 'focus':
JSONEditor.focusNode = this;
break;
case 'change':
case 'blur':
case 'keyup':
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 'focus':
JSONEditor.focusNode = this;
break;
case 'change':
case 'blur':
case 'keyup':
this._getDomField(true);
this._updateDomField();
break;
case 'cut':
case 'paste':
setTimeout(function () {
node._getDomField(true);
node._updateDomField();
}, 1);
break;
}
}
// drag events
var domDrag = dom.drag;
if (target == domDrag) {
switch (type) {
case 'mousedown':
this._onDragStart(event);
break;
case 'mouseover':
this.setHighlight(true);
break;
case 'mouseout':
this.setHighlight(false);
break;
}
}
// expand events
var domExpand = dom.expand;
if (target == domExpand) {
if (type == 'click') {
if (expandable) {
this._onExpand(event);
}
}
}
// duplicate button
var domDuplicate = dom.duplicate;
if (target == domDuplicate) {
switch (type) {
case 'click':
this.parent._duplicate(this);
break;
case 'mouseover':
this.setHighlight(true);
break;
case 'mouseout':
this.setHighlight(false);
break;
}
}
// remove button
var domRemove = dom.remove;
if (target == domRemove) {
switch (type) {
case 'click':
this.parent.removeChild(this);
break;
case 'mouseover':
this.setHighlight(true);
break;
case 'mouseout':
this.setHighlight(false);
break;
}
}
// type button
var domType = dom.type;
if (target == domType) {
switch (type) {
case 'click':
this._onTypeButton(event);
break;
case 'mouseover':
this.setHighlight(true);
break;
case 'mouseout':
this.setHighlight(false);
break;
}
}
// focus
// when clicked in whitespace left or right from the field or value, set focus
var domTree = dom.tree;
if (target == domTree.parentNode) {
switch (type) {
case 'click':
var left = (event.offsetX != undefined) ?
(event.offsetX < (this.getLevel() + 1) * 24) :
(event.clientX < JSONEditor.getAbsoluteLeft(dom.tdSeparator));// for FF
if (left || expandable) {
// node is expandable when it is an object or array
if (domField) {
JSONEditor.setEndOfContenteditable(domField);
domField.focus();
}
}
else {
if (domValue) {
JSONEditor.setEndOfContenteditable(domValue);
domValue.focus();
}
}
break;
}
}
if ((target == dom.tdExpand && !expandable) || target == dom.tdField || target == dom.tdSeparator) {
switch (type) {
case 'click':
if (domField) {
JSONEditor.setEndOfContenteditable(domField);
domField.focus();
}
break;
}
}
}
/**
* Handle the expand event, when clicked on the expand button
*/
JSONEditor.Node.prototype._onExpand = function (event) {
var event = event || window.event;
var recurse = event.ctrlKey; // with ctrl-key, expand/collapse all
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;
}
}
JSONEditor.Node.types = [
{'value': 'array', 'className': 'jsoneditor-option-array', 'title': 'Field type "array". An array contains an ordered collection of values.'},
{'value': 'auto', 'className': 'jsoneditor-option-auto', 'title': 'Field type "auto". The field type is automatically determined from the value and can be a string, number, boolean, or null.'},
{'value': 'object', 'className': 'jsoneditor-option-object', 'title': 'Field type "object". An object contains an unordered set of key/value pairs.'},
{'value': 'string', 'className': 'jsoneditor-option-string', 'title': 'Field type "string". Field type is not determined from the value, but always returned as string.'}
];
/**
* Create a DOM select box containing the node type
* @return {HTML DOM} domType
*/
JSONEditor.Node.prototype._createDomTypeButton = function () {
var node = this;
var domType = document.createElement('button');
domType.className = 'jsoneditor-type-' + node.type;
domType.title = 'Change field type';
return domType;
}
JSONEditor.Node.prototype._onTypeButton = function (event) {
JSONEditor.Events.stopPropagation(event);
var domType = this.dom.type;
var node = this;
var x = JSONEditor.getAbsoluteLeft(domType);
var y = JSONEditor.getAbsoluteTop(domType) + domType.clientHeight;
var callback = function (value) {
node._changeType(value);
domType.className = 'jsoneditor-type-' + node.type;
}
JSONEditor.showDropDownList({
'x': x,
'y': y,
'node': node,
'value': node.type,
'values': JSONEditor.Node.types,
'className': 'jsoneditor-select',
'optionSelectedClassName': 'jsoneditor-option-selected',
'optionClassName': 'jsoneditor-option',
'callback': callback
});
}
JSONEditor.showDropDownList = function (params) {
/*
console.log(params); // TODO
var value = prompt('select a value', params.value);
if (value) {
callback(value);
}*/
var select = document.createElement('div');
select.className = params.className || '';
select.style.position = 'absolute';
select.style.left = (params.x || 0) + 'px';
select.style.top = (params.y || 0) + 'px';
for (var i = 0; i < params.values.length; i++) {
var v = params.values[i];
var text = v.value || String(v);
var className = 'jsoneditor-option ' + (v.className || '');
var selected = (text == params.value);
if (selected) {
className += ' ' + params.optionSelectedClassName;
}
var option = document.createElement('div');
option.className = className;
if (v.title) {
option.title = v.title;
}
option.innerHTML = text;
option.onmousedown = function (value) {
return function (event) {
params.callback(value);
};
}(v.value);
select.appendChild(option);
}
document.body.appendChild(select);
params.node.setHighlight(true);
JSONEditor.freezeHighlight = true;
// TODO: change to onclick? -> but be sure to remove existing dropdown first
var onmousedown = JSONEditor.Events.addEventListener(document, 'mousedown', function (event) {
JSONEditor.freezeHighlight = false;
params.node.setHighlight(false);
document.body.removeChild(select);
JSONEditor.Events.removeEventListener(document, 'mousedown', onmousedown);
});
}
/**
* Create a table row with an append button.
* @return {HTML DOM} buttonAppend or undefined when unapplicable
*/
JSONEditor.Node.prototype.getAppend = function () {
if (!this.append) {
this.append = new JSONEditor.AppendNode();
this.append.parent = this;
}
return this.append.getDom();
}
/**
* Create a remove button. Returns undefined when the structure cannot
* be removed
* @return {HTML DOM} removeButton, or undefined when unapplicable
*/
JSONEditor.Node.prototype._createDomRemoveButton = function () {
if (this.parent && (this.parent.type == 'array' || this.parent.type == 'object')) {
var buttonRemove = document.createElement('button');
buttonRemove.className = 'jsoneditor-remove';
buttonRemove.title = 'Remove field (including all its childs)';
return buttonRemove;
}
else {
return undefined;
}
}
/**
* Create a duplicate button.
* If the Node is the root node, no duplicate button is available and undefined
* will be returned
* @return {HTML DOM} buttonDuplicate
*/
JSONEditor.Node.prototype._createDomDuplicateButton = function () {
if (this.parent && (this.parent.type == 'array' || this.parent.type == 'object')) {
var buttonDupliate = document.createElement('button');
buttonDupliate.className = 'jsoneditor-duplicate';
buttonDupliate.title = 'Duplicate field (including all childs)';
return buttonDupliate;
}
else {
return undefined;
}
}
/**
* get the type of a value
* @param {any type} value
* @return {String} type Can be 'object', 'array', 'string', 'auto'
*/
JSONEditor.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 {String} castedStr
*/
JSONEditor.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
* @param {HTML DOM} text
* @return {String} escapedText
*/
JSONEditor.Node.prototype._escape = function (text) {
var htmlEscaped = String(text).replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/ /g, ' &nbsp;');
var json = JSON.stringify(htmlEscaped);
var escapedText = json.substring(1, json.length - 1);
return escapedText;
}
/**
* unescape a string.
* @param {String} escapedText
* @return {String} text
*/
JSONEditor.Node.prototype._unescape = function (escapedText) {
var json = '"' + escapedText + '"';
var htmlEscaped = JSON.parse(json);
var text = htmlEscaped.replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&nbsp;/g, ' ');
return text;
}
/**
* Strip html tags from a string
* @param {String} html
* @return {String} text
*/
JSONEditor.Node.prototype._stripHTML = function (html) {
// remove HTML tags
// code from nickf, http://stackoverflow.com/a/822464/1262753
return html.replace(/<(?:.|\n)*?>/gm, '');
}
/**
* Create a new AppendNode. This is a special node which is created at the
* end of the list with childs for an object or array
*/
JSONEditor.AppendNode = function () {
this.dom = {};
}
JSONEditor.AppendNode.prototype = new JSONEditor.Node();
/**
* Helper
*/
function newTd(className) {
var td = document.createElement('td');
td.className = className || '';
return td;
}
/**
* Return a table row with an append button.
* @return {HTML DOM} dom TR element
*/
JSONEditor.AppendNode.prototype.getDom = function () {
if (this.dom.tr) {
return this.dom.tr;
}
// a row for the append button
var trAppend = document.createElement('tr');
trAppend.appendChild(newTd('jsoneditor-td'));
trAppend.node = this;
var tdAppend = document.createElement('td');
trAppend.appendChild(tdAppend);
tdAppend.className = 'jsoneditor-td';
var buttonAppend = document.createElement('button');
buttonAppend.className = 'jsoneditor-append';
buttonAppend.title = 'Append a field';
this.dom.append = buttonAppend;
tdAppend.appendChild(buttonAppend);
trAppend.appendChild(newTd('jsoneditor-td jsoneditor-td-edit'));
trAppend.appendChild(newTd('jsoneditor-td jsoneditor-td-edit'));
trAppend.appendChild(newTd('jsoneditor-td jsoneditor-td-edit'));
this.dom.tr = trAppend;
this.dom.td = tdAppend;
this.updateDom();
return trAppend;
}
/**
* Update the HTML dom of the Node
*/
JSONEditor.AppendNode.prototype.updateDom = function () {
var tdAppend = this.dom.td;
if (tdAppend) {
tdAppend.style.paddingLeft = (this.getLevel() * 24 + 26) + 'px';
// TODO: not so nice hard coded offset
}
}
/**
* Handle an event. The event is catched centrally by the editor
* @param {HTML Event} event
*/
JSONEditor.AppendNode.prototype.onEvent = function (event) {
var type = event.type;
var target = event.target || event.srcElement;
var dom = this.dom;
var node = this;
var domAppend = dom.append;
if (target == domAppend) {
switch (type) {
case 'click':
var newNode = new JSONEditor.Node({
'field': 'field',
'value': 'value'
});
this.parent.appendChild(newNode);
this.parent.setHighlight(false);
newNode.focus();
break;
case 'mouseover':
this.parent.setHighlight(true);
break;
case 'mouseout':
this.parent.setHighlight(false);
}
}
}
/**
* Create main frame
*/
JSONEditor.prototype._createFrame = function () {
// create the frame
this.container.innerHTML = '';
this.frame = document.createElement('div');
this.frame.className = 'jsoneditor-frame';
this.container.appendChild(this.frame);
// create one global event listener to handle all events from all nodes
var editor = this;
var onEvent = function (event) {
var event = event || window.event;
var target = event.target || event.srcElement;
var node = JSONEditor.getNodeFromTarget(target);
if (node) {
node.onEvent(event);
}
}
this.frame.onclick = onEvent;
this.frame.onchange = onEvent;
this.frame.onfocus = onEvent;
this.frame.onblur = onEvent;
this.frame.onkeyup = onEvent;
this.frame.oncut = onEvent;
this.frame.onpaste = onEvent;
this.frame.onmousedown = onEvent;
this.frame.onmouseup = onEvent;
this.frame.onmouseover = onEvent;
this.frame.onmouseout = onEvent;
// create menu table
this.head = document.createElement('table');
this.head.className = 'jsoneditor-menu';
var tbody = document.createElement('tbody');
this.head.appendChild(tbody);
var tr = document.createElement('tr');
tbody.appendChild(tr);
var td = document.createElement('td');
td.className = 'jsoneditor-menu';
tr.appendChild(td);
// create expand all button
var editor = this;
var expandAll = document.createElement('button');
expandAll.innerHTML = 'Expand All';
expandAll.onclick = function () {
editor.expandAll();
}
td.appendChild(expandAll);
// create expand all button
var collapseAll = document.createElement('button');
collapseAll.innerHTML = 'Collapse All';
collapseAll.onclick = function () {
editor.collapseAll();
}
td.appendChild(collapseAll);
this.frame.appendChild(this.head);
}
/**
* Create main table
*/
JSONEditor.prototype._createTable = function () {
var contentOuter = document.createElement('div');
contentOuter.className = 'jsoneditor-content-outer';
this.content = document.createElement('div');
this.content.className = 'jsoneditor-content';
contentOuter.appendChild(this.content);
this.table = document.createElement('table');
this.table.className = 'jsoneditor-table';
this.content.appendChild(this.table);
// IE8 does not handle overflow='auto' correctly.
// Therefore, set overflow to 'scroll'
var ieVersion = JSONEditor.getInternetExplorerVersion();
if (ieVersion == 8) {
this.content.style.overflow = 'scroll';
}
// create colgroup where the first two columns don't have a fixed
// width, and the edit columns do have a fixed width
var col;
this.colgroupContent = document.createElement('colgroup');
col = document.createElement('col');
col.width = "24px";
this.colgroupContent.appendChild(col);
col = document.createElement('col');
this.colgroupContent.appendChild(col);
col = document.createElement('col');
col.width = "24px";
this.colgroupContent.appendChild(col);
col = document.createElement('col');
col.width = "24px";
this.colgroupContent.appendChild(col);
col = document.createElement('col');
col.width = "24px";
this.colgroupContent.appendChild(col);
this.table.appendChild(this.colgroupContent);
this.tbody = document.createElement('tbody');
this.table.appendChild(this.tbody);
/* TODO: remove
// TODO: replace header with a fixed bar (like the formatter has)
// create header column
var tr, th;
tr = document.createElement('tr');
th = document.createElement('th');
th.className = 'jsoneditor-th';
var editor = this;
var expandAll = document.createElement('button');
expandAll.innerHTML = 'Expand All';
expandAll.onclick = function () {
editor.expandAll();
}
th.appendChild(expandAll);
var collapseAll = document.createElement('button');
collapseAll.innerHTML = 'Collapse All';
collapseAll.onclick = function () {
editor.collapseAll();
}
th.appendChild(collapseAll);
th.colSpan = 5;
tr.appendChild(th);
this.tbody.appendChild(tr);
*/
this.frame.appendChild(contentOuter);
}
/**
* Find the node from an event target
* @param {HTML DOM} event target
* @return {JSONEditor.Node} node or undefined when not found
*/
JSONEditor.getNodeFromTarget = function (target) {
while (target) {
if (target.node) {
return target.node;
}
target = target.parentNode;
}
return undefined;
}
JSONFormatter = function (container) {
// check availability of JSON parser (not available in IE7 and older)
if (!JSON) {
throw new Error('Your browser does not support JSON. \n\n' +
'Please install the newest version of your browser.\n' +
'(all modern browsers support JSON).');
}
this.container = container;
this.width = container.clientWidth;
this.height = container.clientHeight;
this.frame = document.createElement('div');
this.frame.className = "jsoneditor-frame";
// create menu table
this.head = document.createElement('table');
this.head.className = 'jsoneditor-menu';
var tbody = document.createElement('tbody');
this.head.appendChild(tbody);
var tr = document.createElement('tr');
tbody.appendChild(tr);
var td = document.createElement('td');
td.className = 'jsoneditor-menu';
tr.appendChild(td);
// create format button
var buttonFormat = document.createElement('button');
buttonFormat.innerHTML = 'Format';
buttonFormat.title = 'Format JSON data, with proper indentation and line feeds';
buttonFormat.className = 'jsoneditor-button';
td.appendChild(buttonFormat);
// create compact button
var buttonCompact = document.createElement('button');
buttonCompact.innerHTML = 'Compact';
buttonCompact.title = 'Compact JSON data, remove all whitespaces';
buttonCompact.className = 'jsoneditor-button';
td.appendChild(buttonCompact);
this.frame.appendChild(this.head);
this.content = document.createElement('div');
this.content.className = 'jsonformatter-content';
this.frame.appendChild(this.content);
this.textarea = document.createElement('textarea');
this.textarea.className = "jsonformatter-textarea";
this.textarea.spellcheck = false;
this.content.appendChild(this.textarea);
var formatter = this;
var textarea = this.textarea;
var onChange = function () {
formatter._checkChange();
};
/* TODO: register onchange
this.textarea.onchange = onChange;
this.textarea.onkeyup = onChange;
this.textarea.oncut = onChange;
this.textarea.oncopy = onChange;
this.textarea.onpaste = onChange;
this.textarea.onchange = function () {
console.log('onchange');
}
this.textarea.ondomcharacterdatamodified = function () {
console.log('DOMCharacterDataModified');
}
this.textarea.ondomattrmodified = function () {
console.log('DOMAttrModified');
}
addEventListener(this.textarea, 'DOMAttrModified', function (event) {
console.log('DOMAttrModified', event);
});
addEventListener(this.textarea, 'DOMCharacterDataModified', function (event) {
console.log('DOMCharacterDataModified', event);
});
*/
var me = this;
buttonFormat.onclick = function () {
try {
textarea.value = JSON.stringify(JSON.parse(textarea.value), null, ' ');
}
catch (err) {
me.onError(err);
}
};
buttonCompact.onclick = function () {
try {
textarea.value = JSON.stringify(JSON.parse(textarea.value));
}
catch (err) {
me.onError(err);
}
};
this.container.appendChild(this.frame);
}
/**
* This method is executed on error.
* It can be overwritten for each instance of the JSONFormatter
* @param {String} err
*/
JSONFormatter.prototype.onError = function(err) {
// action should be implemented for the instance
}
/**
* Check if the contents are changed
*/
JSONFormatter.prototype._checkChange = function() {
var content = this.textarea.value;
if (content != this.lastContent) {
this.lastContent = content;
if (formatter.onChangeCallback) {
formatter.onChangeCallback();
}
}
}
/**
* Set json data in the formatter
* @param {JSON} json
*/
JSONFormatter.prototype.set = function(json) {
this.textarea.value = JSON.stringify(json, null, ' ');
}
/**
* Get json data from the formatter
* @return {JSON} json
*/
JSONFormatter.prototype.get = function() {
return JSON.parse(this.textarea.value);
}
/**
* Set a callback method for the onchange event
* @return {function} callback
*/
/* TODO: setOnChangeCallback
JSONFormatter.prototype.setOnChangeCallback = function(callback) {
this.onChangeCallback = callback;
console.log(this.onChangeCallback, callback)
}
*/
// create namespace for event methods
JSONEditor.Events = {};
/**
* Add and event listener. Works for all browsers
* @param {DOM Element} element An html element
* @param {string} action The action, for example "click",
* without the prefix "on"
* @param {function} listener The callback function to be executed
* @param {boolean} useCapture
* @return {function} the created event listener
*/
JSONEditor.Events.addEventListener = function (element, action, listener, useCapture) {
if (element.addEventListener) {
if (useCapture === undefined)
useCapture = false;
if (action === "mousewheel" && navigator.userAgent.indexOf("Firefox") >= 0) {
action = "DOMMouseScroll"; // For Firefox
}
element.addEventListener(action, listener, useCapture);
return listener;
} else {
// IE browsers
var f = function () {
return listener.call(element, window.event);
};
element.attachEvent("on" + action, f);
return f;
}
};
/**
* Remove an event listener from an element
* @param {DOM element} element An html dom element
* @param {string} action The name of the event, for example "mousedown"
* @param {function} listener The listener function
* @param {boolean} useCapture
*/
JSONEditor.Events.removeEventListener = function(element, action, listener, useCapture) {
if (element.removeEventListener) {
// non-IE browsers
if (useCapture === undefined)
useCapture = false;
if (action === "mousewheel" && navigator.userAgent.indexOf("Firefox") >= 0) {
action = "DOMMouseScroll"; // For Firefox
}
element.removeEventListener(action, listener, useCapture);
} else {
// IE browsers
element.detachEvent("on" + action, listener);
}
};
/**
* Stop event propagation
*/
JSONEditor.Events.stopPropagation = function (event) {
if (!event)
var event = window.event;
if (event.stopPropagation) {
event.stopPropagation(); // non-IE browsers
}
else {
event.cancelBubble = true; // IE browsers
}
}
/**
* Cancels the event if it is cancelable, without stopping further propagation of the event.
*/
JSONEditor.Events.preventDefault = function (event) {
if (!event)
var event = window.event;
if (event.preventDefault) {
event.preventDefault(); // non-IE browsers
}
else {
event.returnValue = false; // IE browsers
}
}
/**
* Retrieve the absolute left value of a DOM element
* @param {DOM element} elem A dom element, for example a div
* @return {number} left The absolute left position of this element
* in the browser page.
*/
JSONEditor.getAbsoluteLeft = function (elem) {
var left = 0;
while( elem != null ) {
left += elem.offsetLeft;
left -= elem.scrollLeft;
elem = elem.offsetParent;
}
if (!document.body.scrollLeft && window.pageXOffset) {
// FF
left -= window.pageXOffset;
}
return left;
};
/**
* Retrieve the absolute top value of a DOM element
* @param {DOM element} elem A dom element, for example a div
* @return {number} top The absolute top position of this element
* in the browser page.
*/
JSONEditor.getAbsoluteTop = function (elem) {
var top = 0;
while( elem != null ) {
top += elem.offsetTop;
top -= elem.scrollTop;
elem = elem.offsetParent;
}
if (!document.body.scrollTop && window.pageYOffset) {
// FF
top -= window.pageYOffset;
}
return top;
};
/**
* add a className to the given elements style
*/
JSONEditor.addClassName = function(elem, className) {
var c = elem.className;
if (c.indexOf(className) == -1) {
c += ' ' + className;
elem.className = c;
}
}
/**
* add a className to the given elements style
*/
JSONEditor.removeClassName = function(elem, className) {
var c = elem.className;
if (c.indexOf(className) != -1) {
c = c.replace(className, ''); // remove classname
c = c.replace(/ /g, ''); // remove double spaces
elem.className = c;
}
}
/**
* Strip the formatting from the contents of a div
* the formatting from the div itself is not stripped, only from its childs.
* @param {HTML Div Element} divElement
*/
JSONEditor.stripFormatting = function (divElement) {
var childs = divElement.childNodes;
for (var i = 0, iMax = childs.length; i < iMax; i++) {
var child = childs[i];
// remove the style
if (child.style) {
// TODO: test if child.attributes does contain style
child.removeAttribute('style');
}
// remove all attributes
var attributes = child.attributes;
if (attributes) {
for (var j = 0, jMax = attributes.length; j < jMax; j++) {
var attribute = attributes[j];
if (attribute.specified == true) {
child.removeAttribute(attribute.name);
}
}
}
// recursively strip childs
JSONEditor.stripFormatting(child);
}
}
/**
* Set focus to the end of an editable div
* code from Nico Burns
* http://stackoverflow.com/users/140293/nico-burns
* http://stackoverflow.com/questions/1125292/how-to-move-cursor-to-end-of-contenteditable-entity
*/
JSONEditor.setEndOfContenteditable = function (contentEditableElement) {
var range, selection;
if(document.createRange) {//Firefox, Chrome, Opera, Safari, IE 9+
range = document.createRange();//Create a range (a range is a like the selection but invisible)
range.selectNodeContents(contentEditableElement);//Select the entire contents of the element with the range
range.collapse(false);//collapse the range to the end point. false means collapse to end rather than the start
selection = window.getSelection();//get the selection object (allows you to change selection)
selection.removeAllRanges();//remove any selections already made
selection.addRange(range);//make the range you have just created the visible selection
}
else if(document.selection) {//IE 8 and lower
range = document.body.createTextRange();//Create a range (a range is a like the selection but invisible)
range.moveToElementText(contentEditableElement);//Select the entire contents of the element with the range
range.collapse(false);//collapse the range to the end point. false means collapse to end rather than the start
range.select();//Select the range (make it the visible selection
}
}
/**
* Returns the version of Internet Explorer or a -1
* (indicating the use of another browser).
* Source: http://msdn.microsoft.com/en-us/library/ms537509(v=vs.85).aspx
* @return {Number} Internet Explorer version, or -1 in case of an other browser
*/
JSONEditor.getInternetExplorerVersion = function() {
var rv = -1; // Return value assumes failure.
if (navigator.appName == 'Microsoft Internet Explorer')
{
var ua = navigator.userAgent;
var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
if (re.exec(ua) != null)
rv = parseFloat( RegExp.$1 );
}
return rv;
}
JSONEditor.ieVersion = JSONEditor.getInternetExplorerVersion();