/**
* @file jsoneditor.js
*
* @brief
* JSONEditor is a web-based tool to view, edit, and format JSON.
* It shows data a clear, editable 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 2012-12-08
*/
// 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;
};
}
// Internet Explorer 8 and older does not support Array.forEach,
// so we define it here in that case
// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/forEach
if (!Array.prototype.forEach) {
Array.prototype.forEach = function(fn, scope) {
for (var i = 0, len = this.length; i < len; ++i) {
fn.call(scope || this, this[i], i, this);
}
};
}
// define variable JSON, needed for correct error handling on IE7 and older
var JSON;
/**
* JSONEditor
* @param {Element} container Container element
* @param {Object} [options] Object with options. available options:
* {String} mode Editor mode. Available values:
* 'editor' (default), 'viewer'.
* {Boolean} search Enable search box.
* True by default
* {Boolean} history Enable history (undo/redo).
* True by default
* {function} change Callback method, triggered
* on change of contents
* {String} name Field name for the root node.
* @param {Object | undefined} json JSON object
*/
JSONEditor = function(container, options, json) {
// check availability of JSON parser (not available in IE7 and older)
if (!JSON) {
throw new Error(
"您当前使用的浏览器不支持 JSON. \n\n" +
"请下载安装最新版本的浏览, 本站推荐Google Chrome.\n" +
"(PS: 当前主流浏览器都支持JSON)."
);
}
if (!container) {
throw new Error("没有提供容器元素.");
}
this.container = container;
this.dom = {};
this._setOptions(options);
if (this.options.history && this.editable) {
this.history = new JSONEditor.History(this);
}
this._createFrame();
this._createTable();
this.set(json || {});
};
/**
* Initialize and set default options
* @param {Object} [options] Object with options. available options:
* {String} mode Editor mode. Available values:
* 'editor' (default), 'viewer'.
* {Boolean} search Enable search box.
* True by default.
* {Boolean} history Enable history (undo/redo).
* True by default.
* {function} change Callback method, triggered
* on change of contents.
* {String} name Field name for the root node.
* @private
*/
JSONEditor.prototype._setOptions = function(options) {
this.options = {
search: true,
history: true,
mode: "editor",
name: undefined // field name of root node
};
// copy all options
if (options) {
for (var prop in options) {
if (options.hasOwnProperty(prop)) {
this.options[prop] = options[prop];
}
}
// check for deprecated options
if (options.enableSearch) {
// deprecated since version 1.6.0, 2012-11-03
this.options.search = options.enableSearch;
// console.log('WARNING: Option "enableSearch" is deprecated. Use "search" instead.');
}
if (options.enableHistory) {
// deprecated since version 1.6.0, 2012-11-03
this.options.search = options.enableHistory;
// console.log('WARNING: Option "enableHistory" is deprecated. Use "history" instead.');
}
}
// interpret the options
this.editable = this.options.mode != "viewer";
};
// node currently being edited
JSONEditor.focusNode = undefined;
/**
* Set JSON object in editor
* @param {Object | undefined} json JSON data
* @param {String} [name] Optional field name for the root node.
* Can also be set using setName(name).
*/
JSONEditor.prototype.set = function(json, name) {
// adjust field name for root node
if (name) {
this.options.name = name;
}
// verify if json is valid JSON, ignore when a function
if (json instanceof Function || json === undefined) {
this.clear();
} else {
this.content.removeChild(this.table); // Take the table offline
// replace the root node
var params = {
field: this.options.name,
value: json
};
var node = new JSONEditor.Node(this, params);
this._setRoot(node);
// expand
var recurse = false;
this.node.expand(recurse);
this.content.appendChild(this.table); // Put the table online again
}
// TODO: maintain history, store last state and previous document
if (this.history) {
this.history.clear();
}
};
/**
* Get JSON object from editor
* @return {Object | undefined} 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 undefined;
}
};
/**
* Set a field name for the root node.
* @param {String | undefined} name
*/
JSONEditor.prototype.setName = function(name) {
this.options.name = name;
if (this.node) {
this.node.updateField(this.options.name);
}
};
/**
* Get the field name for the root node.
* @return {String | undefined} name
*/
JSONEditor.prototype.getName = function() {
return this.options.name;
};
/**
* 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
* @private
*/
JSONEditor.prototype._setRoot = function(node) {
this.clear();
this.node = node;
// append to the dom
this.tbody.appendChild(node.getDom());
};
/**
* Search text in all nodes
* The nodes 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 {Object[]} results Array with nodes containing the search results
* The result objects contains fields:
* - {JSONEditor.Node} node,
* - {String} elem the dom element name where
* the result is found ('field' or
* 'value')
*/
JSONEditor.prototype.search = function(text) {
var results;
if (this.node) {
this.content.removeChild(this.table); // Take the table offline
results = this.node.search(text);
this.content.appendChild(this.table); // Put the table online again
} else {
results = [];
}
return results;
};
/**
* 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
}
};
/**
* The method onChange is called whenever a field or value is changed, created,
* deleted, duplicated, etc.
* @param {String} action Change action. Available values: "editField",
* "editValue", "changeType", "appendNode",
* "removeNode", "duplicateNode", "moveNode", "expand",
* "collapse".
* @param {Object} params Object containing parameters describing the change.
* The parameters in params depend on the action (for
* example for "editValue" the Node, old value, and new
* value are provided). params contains all information
* needed to undo or redo the action.
*/
JSONEditor.prototype.onAction = function(action, params) {
// add an action to the history
if (this.history) {
this.history.add(action, params);
}
// trigger the onChange callback
if (this.options.change) {
try {
this.options.change();
} catch (err) {
//console.log('Error in change callback: ', err);
}
}
};
/**
* Set the focus to the JSONEditor. A hidden input field will be created
* which captures key events
*/
// TODO: use the focus method?
JSONEditor.prototype.focus = function() {
/*
if (!this.dom.focus) {
this.dom.focus = document.createElement('input');
this.dom.focus.className = 'jsoneditor-hidden-focus';
var editor = this;
this.dom.focus.onblur = function () {
// remove itself
if (editor.dom.focus) {
var focus = editor.dom.focus;
delete editor.dom.focus;
editor.frame.removeChild(focus);
}
};
// attach the hidden input box to the DOM
if (this.frame.firstChild) {
this.frame.insertBefore(this.dom.focus, this.frame.firstChild);
}
else {
this.frame.appendChild(this.dom.focus);
}
}
this.dom.focus.focus();
*/
};
/**
* Adjust the scroll position such that given top position is shown at 1/4
* of the window height.
* @param {Number} top
*/
JSONEditor.prototype.scrollTo = function(top) {
var content = this.content;
if (content) {
// cancel any running animation
var editor = this;
if (editor.animateTimeout) {
clearTimeout(editor.animateTimeout);
delete editor.animateTimeout;
}
// calculate final scroll position
var height = content.clientHeight;
var bottom = content.scrollHeight - height;
var finalScrollTop = Math.min(Math.max(top - height / 4, 0), bottom);
// animate towards the new scroll position
var animate = function() {
var scrollTop = content.scrollTop;
var diff = finalScrollTop - scrollTop;
if (Math.abs(diff) > 3) {
content.scrollTop += diff / 3;
editor.animateTimeout = setTimeout(animate, 50);
}
};
animate();
}
};
/**
* @constructor JSONEditor.History
* Store action history, enables undo and redo
* @param {JSONEditor} editor
*/
JSONEditor.History = function(editor) {
this.editor = editor;
this.clear();
// map with all supported actions
this.actions = {
editField: {
undo: function(obj) {
obj.params.node.updateField(obj.params.oldValue);
},
redo: function(obj) {
obj.params.node.updateField(obj.params.newValue);
}
},
editValue: {
undo: function(obj) {
obj.params.node.updateValue(obj.params.oldValue);
},
redo: function(obj) {
obj.params.node.updateValue(obj.params.newValue);
}
},
appendNode: {
undo: function(obj) {
obj.params.parent.removeChild(obj.params.node);
},
redo: function(obj) {
obj.params.parent.appendChild(obj.params.node);
}
},
removeNode: {
undo: function(obj) {
var parent = obj.params.parent;
var beforeNode = parent.childs[obj.params.index] || parent.append;
parent.insertBefore(obj.params.node, beforeNode);
},
redo: function(obj) {
obj.params.parent.removeChild(obj.params.node);
}
},
duplicateNode: {
undo: function(obj) {
obj.params.parent.removeChild(obj.params.clone);
},
redo: function(obj) {
// TODO: insert after instead of insert before
obj.params.parent.insertBefore(obj.params.clone, obj.params.node);
}
},
changeType: {
undo: function(obj) {
obj.params.node.changeType(obj.params.oldType);
},
redo: function(obj) {
obj.params.node.changeType(obj.params.newType);
}
},
moveNode: {
undo: function(obj) {
obj.params.startParent.moveTo(obj.params.node, obj.params.startIndex);
},
redo: function(obj) {
obj.params.endParent.moveTo(obj.params.node, obj.params.endIndex);
}
}
// TODO: restore the original caret position and selection with each undo
// TODO: implement history for actions "expand", "collapse", "scroll", "setDocument"
};
};
/**
* The method onChange is executed when the History is changed, and can
* be overloaded.
*/
JSONEditor.History.prototype.onChange = function() {};
/**
* Add a new action to the history
* @param {String} action The executed action. Available actions: "editField",
* "editValue", "changeType", "appendNode",
* "removeNode", "duplicateNode", "moveNode"
* @param {Object} params Object containing parameters describing the change.
* The parameters in params depend on the action (for
* example for "editValue" the Node, old value, and new
* value are provided). params contains all information
* needed to undo or redo the action.
*/
JSONEditor.History.prototype.add = function(action, params) {
this.index++;
this.history[this.index] = {
action: action,
params: params,
timestamp: new Date()
};
// remove redo actions which are invalid now
if (this.index < this.history.length - 1) {
this.history.splice(this.index + 1, this.history.length - this.index - 1);
}
// fire onchange event
this.onChange();
};
/**
* Clear history
*/
JSONEditor.History.prototype.clear = function() {
this.history = [];
this.index = -1;
// fire onchange event
this.onChange();
};
/**
* Check if there is an action available for undo
* @return {Boolean} canUndo
*/
JSONEditor.History.prototype.canUndo = function() {
return this.index >= 0;
};
/**
* Check if there is an action available for redo
* @return {Boolean} canRedo
*/
JSONEditor.History.prototype.canRedo = function() {
return this.index < this.history.length - 1;
};
/**
* Undo the last action
*/
JSONEditor.History.prototype.undo = function() {
if (this.canUndo()) {
var obj = this.history[this.index];
if (obj) {
var action = this.actions[obj.action];
if (action && action.undo) {
action.undo(obj);
} else {
//console.log('Error: unknown action "' + obj.action + '"');
}
}
this.index--;
// fire onchange event
this.onChange();
}
};
/**
* Redo the last action
*/
JSONEditor.History.prototype.redo = function() {
if (this.canRedo()) {
this.index++;
var obj = this.history[this.index];
if (obj) {
if (obj) {
var action = this.actions[obj.action];
if (action && action.redo) {
action.redo(obj);
} else {
//console.log('Error: unknown action "' + obj.action + '"');
}
}
}
// fire onchange event
this.onChange();
}
};
/**
* @constructor JSONEditor.Node
* Create a new Node
* @param {JSONEditor} editor
* @param {Object} params Can contain parameters: field, fieldEditable, value.
*/
JSONEditor.Node = function(editor, params) {
this.editor = editor;
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();
}
};
/**
* Set parent node
* @param {JSONEditor.Node} parent
*/
JSONEditor.Node.prototype.setParent = function(parent) {
this.parent = parent;
};
/**
* Get parent node. Returns undefined when no parent node is set.
* @return {JSONEditor.Node} parent
*/
JSONEditor.Node.prototype.getParent = function() {
return this.parent;
};
/**
* Set field
* @param {String} field
* @param {boolean} fieldEditable
*/
JSONEditor.Node.prototype.setField = function(field, fieldEditable) {
this.field = field;
this.fieldEditable = fieldEditable == true;
};
/**
* Get field
* @return {String}
*/
JSONEditor.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
*/
JSONEditor.Node.prototype.setValue = function(value) {
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);
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 JSONEditor.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 JSONEditor.Node(this.editor, {
field: childField,
value: childValue
});
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;
}
*/
}
};
/**
* Get value. Value is a JSON structure
* @return {*} value
*/
JSONEditor.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
*/
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(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
*/
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();
if (recurse != false) {
this.childs.forEach(function(child) {
child.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
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
*/
JSONEditor.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
*/
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
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 {JSONEditor.Node} node
*/
JSONEditor.Node.prototype.appendChild = function(node) {
if (this.type == "array" || this.type == "object") {
// 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 {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.getParent();
if (parent) {
parent.removeChild(node);
}
if (beforeNode instanceof JSONEditor.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 {JSONEditor.Node} node
* @param {Number} index
*/
JSONEditor.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 {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.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("节点未找到.");
}
// 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
});
}
};
/**
* 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 {JSONEditor.Node[]} results Array with nodes containing the search text
*/
JSONEditor.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.type == "array" || this.type == "object") {
// 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
*/
JSONEditor.Node.prototype.scrollTo = function() {
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);
}
};
/**
* Set focus to the value of this node
* @param {String} [field] The field name of the element to get the focus
* available values: 'field', 'value'
*/
JSONEditor.Node.prototype.focus = function(field) {
if (this.dom.tr && this.dom.tr.parentNode) {
if (field != "value" && this.fieldEditable) {
var domField = this.dom.field;
if (domField) {
domField.focus();
}
} else {
var domValue = this.dom.value;
if (domValue) {
domValue.focus();
}
}
}
};
/**
* Update the values from the DOM field and value of this node
*/
JSONEditor.Node.prototype.blur = function() {
// retrieve the actual field and value from the DOM.
this._getDomValue(false);
this._getDomField(false);
};
/**
* Duplicate given child node
* new structure will be added right before the cloned node
* @param {JSONEditor.Node} node the childNode to be duplicated
* @return {JSONEditor.Node} clone the clone of the node
* @private
*/
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);
return clone;
};
/**
* Check if given node is a child. The method will check recursively to find
* this node.
* @param {JSONEditor.Node} node
* @return {boolean} containsNode
*/
JSONEditor.Node.prototype.containsNode = function(node) {
if (this == node) {
return true;
}
var childs = this.childs;
if (childs) {
// TOOD: 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 {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
* @private
*/
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("不能把区域移动到自身的子节点.");
}
// 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 | undefined} 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();
// delete old search results
delete node.searchField;
delete node.searchValue;
var removedNode = this.childs.splice(index, 1)[0];
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 firex an
* onChange event.
* @param {JSONEditor.Node} node
* @private
*/
JSONEditor.Node.prototype._remove = function(node) {
this.removeChild(node);
};
/**
* 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 = [];
}
this.childs.forEach(function(child, index) {
child.clearDom();
delete child.index;
child.fieldEditable = true;
if (child.field == undefined) {
child.field = index;
}
});
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
*/
JSONEditor.Node.prototype._getDomValue = function(silent) {
if (this.dom.value && this.type != "array" && this.type != "object") {
this.valueInnerText = JSONEditor.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) {
var oldValue = this.value;
this.value = value;
this.editor.onAction("editValue", {
node: this,
oldValue: oldValue,
newValue: value
});
}
} catch (err) {
this.value = undefined;
// TODO: sent an action with the new, invalid value?
if (silent != true) {
throw err;
}
}
}
};
/**
* 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
*/
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");
}
// highlight when there is a search result
if (this.searchValueActive) {
JSONEditor.addClassName(domValue, "jsoneditor-search-highlight-active");
} else {
JSONEditor.removeClassName(
domValue,
"jsoneditor-search-highlight-active"
);
}
if (this.searchValue) {
JSONEditor.addClassName(domValue, "jsoneditor-search-highlight");
} else {
JSONEditor.removeClassName(domValue, "jsoneditor-search-highlight");
}
// strip formatting from the contents of the editable div
JSONEditor.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
*/
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");
}
// highlight when there is a search result
if (this.searchFieldActive) {
JSONEditor.addClassName(domField, "jsoneditor-search-highlight-active");
} else {
JSONEditor.removeClassName(
domField,
"jsoneditor-search-highlight-active"
);
}
if (this.searchField) {
JSONEditor.addClassName(domField, "jsoneditor-search-highlight");
} else {
JSONEditor.removeClassName(domField, "jsoneditor-search-highlight");
}
// 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
* @private
*/
JSONEditor.Node.prototype._getDomField = function(silent) {
if (this.dom.field && this.fieldEditable) {
this.fieldInnerText = JSONEditor.getInnerText(this.dom.field);
}
if (this.fieldInnerText != undefined) {
try {
var field = this._unescapeHTML(this.fieldInnerText);
if (field !== this.field) {
var oldField = this.field;
this.field = field;
this.editor.onAction("editField", {
node: this,
oldValue: oldField,
newValue: field
});
}
} catch (err) {
this.field = undefined;
// TODO: sent an action here, with the new, invalid value?
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 {Element} tr HTML DOM TR Element
*/
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;
if (this.editor.editable) {
// create draggable area
var tdDrag = document.createElement("td");
tdDrag.className = "jsoneditor-td";
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);
if (this.editor.editable) {
// 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.updateDom(); // TODO: recurse here?
return dom.tr;
};
/**
* DragStart event, fired on mousedown on the dragarea at the left side of a Node
* @param {Event} event
* @private
*/
JSONEditor.Node.prototype._onDragStart = function(event) {
event = event || window.event;
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.drag = {
oldCursor: document.body.style.cursor,
startParent: this.parent,
startIndex: this.parent.childs.indexOf(this)
};
document.body.style.cursor = "move";
JSONEditor.Events.preventDefault(event);
};
/**
* Drag event, fired when moving the mouse while dragging a Node
* @param {Event} event
* @private
*/
JSONEditor.Node.prototype._onDrag = function(event) {
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.expanded && 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
* @param {Event} event
* @private
*/
JSONEditor.Node.prototype._onDragEnd = function(event) {
event = event || window.event;
var params = {
node: this,
startParent: this.drag.startParent,
startIndex: this.drag.startIndex,
endParent: this.parent,
endIndex: this.parent.childs.indexOf(this)
};
if (
params.startParent != params.endParent ||
params.startIndex != params.endIndex
) {
// only register this action if the node is actually moved to another place
this.editor.onAction("moveNode", params);
}
document.body.style.cursor = this.drag.oldCursor;
delete JSONEditor.freezeHighlight;
delete this.drag;
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
* @return {Element | undefined} domDrag
* @private
*/
JSONEditor.Node.prototype._createDomDragArea = function() {
if (!this.parent) {
return undefined;
}
var domDrag = document.createElement("button");
domDrag.className = "jsoneditor-dragarea";
domDrag.title = "Move field (drag and drop)";
return domDrag;
};
/**
* Create an editable field
* @return {Element} domField
* @private
*/
JSONEditor.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
*/
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);
}
if (this.childs) {
this.childs.forEach(function(child) {
child.setHighlight(highlight);
});
}
}
};
/**
* Update the value of the node. Only primitive types are allowed, no Object
* or Array is allowed.
* @param {String | Number | Boolean | null} value
*/
JSONEditor.Node.prototype.updateValue = function(value) {
this.value = value;
this.updateDom();
};
/**
* Update the field of the node.
* @param {String} field
*/
JSONEditor.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.
*/
JSONEditor.Node.prototype.updateDom = function(options) {
// 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 = this.editor.editable;
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._escapeHTML(field);
}
// update value
var domValue = this.dom.value;
if (domValue) {
var count = this.childs ? this.childs.length : 0;
if (this.type == "array") {
domValue.innerHTML = "[" + count + "]";
domValue.title = this.type + " containing " + count + " items";
} else if (this.type == "object") {
domValue.innerHTML = "{" + count + "}";
domValue.title = this.type + " containing " + count + " items";
} else {
domValue.innerHTML = this._escapeHTML(this.value);
delete domValue.title;
}
}
// 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();
}
}
};
/**
* 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
*/
JSONEditor.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 = "field";
}
}
});
}
}
};
/**
* Create an editable value
* @private
*/
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 = this.editor.editable;
domValue.spellcheck = false;
domValue.className = "jsoneditor-value";
domValue.innerHTML = this._escapeHTML(this.value);
} else {
domValue = document.createElement("div");
domValue.contentEditable = this.editor.editable;
domValue.spellcheck = false;
domValue.className = "jsoneditor-value";
domValue.innerHTML = this._escapeHTML(this.value);
}
// TODO: in FF spel/check of editable divs is done via the body. quite ugly
// document.body.spellcheck = false;
return domValue;
};
/**
* Create an expand/collapse button
* @return {Element} expand
* @private
*/
JSONEditor.Node.prototype._createDomExpandButton = function() {
// 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 {Element} domExpand
* @param {Element} domField
* @param {Element} domValue
* @return {Element} domTree
* @private
*/
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
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 {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 "blur":
case "change":
this._getDomValue(true);
this._updateDomValue();
if (this.value) {
domValue.innerHTML = this._escapeHTML(this.value);
}
break;
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":
this._getDomField(true);
this._updateDomField();
if (this.field) {
domField.innerHTML = this._escapeHTML(this.field);
}
break;
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":
var clone = this.parent._duplicate(this);
this.editor.onAction("duplicateNode", {
node: this,
clone: clone,
parent: this.parent
});
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._onRemove();
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._onChangeType(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
* @param {Event} event
* @private
*/
JSONEditor.Node.prototype._onExpand = function(event) {
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: '"array" 类型: 包含了有序值集合的数组.'
},
{
value: "auto",
className: "jsoneditor-option-auto",
title:
'"auto" 类型: 节点类型将自动从值中获取, 可以是: string, number, boolean, 或 null.'
},
{
value: "object",
className: "jsoneditor-option-object",
title: '"object" 类型: 对象包含了一些无序的键/值对.'
},
{
value: "string",
className: "jsoneditor-option-string",
title: '"string" 类型: 节点类型不从值中自动获取, 但永远返回string.'
}
];
/**
* Create a DOM select box containing the node type
* @return {Element} domType
* @private
*/
JSONEditor.Node.prototype._createDomTypeButton = function() {
var node = this;
var domType = document.createElement("button");
domType.className = "jsoneditor-type-" + node.type;
domType.title = "改变节点类型";
return domType;
};
/**
* Remove this node
* @private
*/
JSONEditor.Node.prototype._onRemove = function() {
this.setHighlight(false);
var index = this.parent.childs.indexOf(this);
this.parent._remove(this);
this.editor.onAction("removeNode", {
node: this,
parent: this.parent,
index: index
});
};
/**
* Handle a click on the Type-button
* @param {Event} event
* @private
*/
JSONEditor.Node.prototype._onChangeType = 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(newType) {
var oldType = node.type;
node.changeType(newType);
node.editor.onAction("changeType", {
node: node,
oldType: oldType,
newType: newType
});
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
});
};
/**
* Show a dropdown list
* @param {Object} params Available parameters:
* {Number} x The absolute horizontal position
* {Number} y The absolute vertical position
* {JSONEditor.Node} node node used for highlighting
* {String} value current selected value
* {Object[]} values the available values. Each object
* contains a value, title, and
* className
* {String} optionSelectedClassName
* {String} optionClassName
* {function} callback Callback method, called when
* the selected value changed.
*/
JSONEditor.showDropDownList = function(params) {
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";
params.values.forEach(function(v) {
var text = v.value || String(v);
var className = "jsoneditor-option";
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;
}
var divIcon = document.createElement("div");
divIcon.className = v.className || "";
option.appendChild(divIcon);
var divText = document.createElement("div");
divText.className = "jsoneditor-option-text";
divText.innerHTML = "<div>" + text + "</div>";
option.appendChild(divText);
option.onmousedown = (function(value) {
return function() {
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() {
JSONEditor.freezeHighlight = false;
params.node.setHighlight(false);
if (select && select.parentNode) {
select.parentNode.removeChild(select);
}
JSONEditor.Events.removeEventListener(document, "mousedown", onmousedown);
}
);
var onmousewheel = JSONEditor.Events.addEventListener(
document,
"mousewheel",
function() {
JSONEditor.freezeHighlight = false;
params.node.setHighlight(false);
if (select && select.parentNode) {
select.parentNode.removeChild(select);
}
JSONEditor.Events.removeEventListener(
document,
"mousewheel",
onmousewheel
);
}
);
};
/**
* Create a table row with an append button.
* @return {Element | undefined} buttonAppend or undefined when inapplicable
*/
JSONEditor.Node.prototype.getAppend = function() {
if (!this.append) {
this.append = new JSONEditor.AppendNode(this.editor);
this.append.setParent(this);
}
return this.append.getDom();
};
/**
* Create a remove button. Returns undefined when the structure cannot
* be removed
* @return {Element | undefined} removeButton, or undefined when inapplicable
* @private
*/
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 = "删除节点 (包括所有子节点)";
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 {Element | undefined} buttonDuplicate
* @private
*/
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 = "复制节点 (包括所有子节点)";
return buttonDupliate;
} else {
return undefined;
}
};
/**
* get the type of a value
* @param {*} value
* @return {String} type Can be 'object', 'array', 'string', 'auto'
* @private
*/
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 {*} castedStr
* @private
*/
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, such that it can be displayed safely in an HTML element
* @param {String} text
* @return {String} escapedText
* @private
*/
JSONEditor.Node.prototype._escapeHTML = function(text) {
var htmlEscaped = String(text)
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/ /g, " ") // replace double space with an nbsp and space
.replace(/^ /, " ") // space at start
.replace(/ $/, " "); // space at end
var json = JSON.stringify(htmlEscaped);
return json.substring(1, json.length - 1);
};
/**
* unescape a string.
* @param {String} escapedText
* @return {String} text
* @private
*/
JSONEditor.Node.prototype._unescapeHTML = function(escapedText) {
var json = '"' + this._escapeJSON(escapedText) + '"';
var htmlEscaped = JSONEditor.parse(json);
return htmlEscaped
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/ /g, " ");
};
/**
* 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
*/
JSONEditor.Node.prototype._escapeJSON = function(text) {
// TODO: replace with some smart regex (only when a new solution is faster!)
var escaped = "";
var i = 0,
iMax = text.length;
while (i < iMax) {
var c = text.charAt(i);
if (c == "\n") {
escaped += "\\n";
} else if (c == "\\") {
escaped += c;
i++;
c = text.charAt(i);
if ('"\\/bfnrtu'.indexOf(c) == -1) {
escaped += "\\"; // no valid escape character
}
escaped += c;
} else if (c == '"') {
escaped += '\\"';
} else {
escaped += c;
}
i++;
}
return escaped;
};
/**
* @constructor JSONEditor.AppendNode
* @extends JSONEditor.Node
* @param {JSONEditor} editor
* 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(editor) {
this.editor = editor;
this.dom = {};
};
JSONEditor.AppendNode.prototype = new JSONEditor.Node();
/**
* Return a table row with an append button.
* @return {Element} dom TR element
*/
JSONEditor.AppendNode.prototype.getDom = function() {
if (this.dom.tr) {
return this.dom.tr;
}
/**
* Create a TD element, and give it the provided class name (if any)
* @param {String} [className]
* @return {Element} td
*/
function newTd(className) {
var td = document.createElement("td");
td.className = className || "";
return td;
}
// a row for the append button
var trAppend = document.createElement("tr");
trAppend.node = this;
// TODO: do not create an appendNode at all when in viewer mode
if (!this.editor.editable) {
return trAppend;
}
// a cell for the drag area column
trAppend.appendChild(newTd("jsoneditor-td"));
// a cell for the append button
var tdAppend = document.createElement("td");
trAppend.appendChild(tdAppend);
tdAppend.className = "jsoneditor-td";
// create the append button
var buttonAppend = document.createElement("button");
buttonAppend.className = "jsoneditor-append";
buttonAppend.title = "添加";
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 {Event} event
*/
JSONEditor.AppendNode.prototype.onEvent = function(event) {
var type = event.type;
var target = event.target || event.srcElement;
var dom = this.dom;
var domAppend = dom.append;
if (target == domAppend) {
switch (type) {
case "click":
this._onAppend();
break;
case "mouseover":
this.parent.setHighlight(true);
break;
case "mouseout":
this.parent.setHighlight(false);
}
}
};
/**
* Handle append event
* @private
*/
JSONEditor.AppendNode.prototype._onAppend = function() {
var newNode = new JSONEditor.Node(this.editor, {
field: "field",
value: "value"
});
this.parent.appendChild(newNode);
this.parent.setHighlight(false);
newNode.focus();
this.editor.onAction("appendNode", {
node: newNode,
parent: this.parent
});
};
/**
* Create main frame
* @private
*/
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;
// TODO: move this onEvent to JSONEditor.prototype.onEvent
var onEvent = function(event) {
event = event || window.event;
var target = event.target || event.srcElement;
/* TODO: Enable quickkeys Ctrl+F and F3.
// Requires knowing whether the JSONEditor has focus or not
// (use a global event listener for that?)
// Check for search quickkeys, Ctrl+F and F3
if (editor.options.search) {
if (event.type == 'keydown') {
var keynum = event.which || event.keyCode;
if (keynum == 70 && event.ctrlKey) { // Ctrl+F
if (editor.searchBox) {
editor.searchBox.dom.search.focus();
editor.searchBox.dom.search.select();
JSONEditor.Events.preventDefault(event);
JSONEditor.Events.stopPropagation(event);
}
}
else if (keynum == 114) { // F3
if (!event.shiftKey) {
// select next search result
editor.searchBox.next();
}
else {
// select previous search result
editor.searchBox.previous();
}
editor.searchBox.focusActiveResult();
// set selection to the current
JSONEditor.Events.preventDefault(event);
JSONEditor.Events.stopPropagation(event);
}
}
}
*/
var node = JSONEditor.getNodeFromTarget(target);
if (node) {
node.onEvent(event);
}
};
this.frame.onclick = function(event) {
onEvent(event);
// prevent default submit action when JSONEditor is located inside a form
JSONEditor.Events.preventDefault(event);
};
this.frame.onchange = onEvent;
this.frame.onkeydown = 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;
// Note: focus and blur events do not propagate, therefore they defined
// using an eventListener with useCapture=true
// see http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html
JSONEditor.Events.addEventListener(this.frame, "focus", onEvent, true);
JSONEditor.Events.addEventListener(this.frame, "blur", onEvent, true);
this.frame.onfocusin = onEvent; // for IE
this.frame.onfocusout = onEvent; // for IE
// create menu
this.menu = document.createElement("div");
this.menu.className = "jsoneditor-menu";
this.frame.appendChild(this.menu);
// create expand all button
var expandAll = document.createElement("button");
expandAll.className = "jsoneditor-menu jsoneditor-expand-all";
expandAll.title = "展开";
expandAll.onclick = function() {
editor.expandAll();
};
this.menu.appendChild(expandAll);
// create expand all button
var collapseAll = document.createElement("button");
collapseAll.title = "折叠";
collapseAll.className = "jsoneditor-menu jsoneditor-collapse-all";
collapseAll.onclick = function() {
editor.collapseAll();
};
this.menu.appendChild(collapseAll);
// create expand/collapse buttons
if (this.history) {
// create separator
var separator = document.createElement("span");
separator.innerHTML = " ";
this.menu.appendChild(separator);
// create undo button
var undo = document.createElement("button");
undo.className = "jsoneditor-menu jsoneditor-undo";
undo.title = "撤销";
undo.onclick = function() {
// undo last action
editor.history.undo();
// trigger change callback
if (editor.options.change) {
editor.options.change();
}
};
this.menu.appendChild(undo);
this.dom.undo = undo;
// create redo button
var redo = document.createElement("button");
redo.className = "jsoneditor-menu jsoneditor-redo";
redo.title = "重做";
redo.onclick = function() {
// redo last action
editor.history.redo();
// trigger change callback
if (editor.options.change) {
editor.options.change();
}
};
this.menu.appendChild(redo);
this.dom.redo = redo;
// register handler for onchange of history
this.history.onChange = function() {
undo.disabled = !editor.history.canUndo();
redo.disabled = !editor.history.canRedo();
};
this.history.onChange();
}
// create search box
if (this.options.search) {
this.searchBox = new JSONEditor.SearchBox(this, this.menu);
}
};
/**
* Create main table
* @private
*/
JSONEditor.prototype._createTable = function() {
var contentOuter = document.createElement("div");
contentOuter.className = "jsoneditor-content-outer";
this.contentOuter = contentOuter;
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);
this.frame.appendChild(contentOuter);
};
/**
* Find the node from an event target
* @param {Element} target
* @return {JSONEditor.Node | undefined} node or undefined when not found
*/
JSONEditor.getNodeFromTarget = function(target) {
while (target) {
if (target.node) {
return target.node;
}
target = target.parentNode;
}
return undefined;
};
/**
* Create a JSONFormatter and attach it to given container
* @constructor JSONFormatter
* @param {Element} container
* @param {Object} [options] Object with options. available options:
* {Number} indentation Number of indentation
* spaces. 4 by default.
* {function} change Callback method
* triggered on change
* @param {JSON | String} [json] initial contents of the formatter
*/
JSONFormatter = function(container, options, json) {
// check availability of JSON parser (not available in IE7 and older)
if (!JSON) {
throw new Error(
"您当前使用的浏览器不支持 JSON. \n\n" +
"请下载安装最新版本的浏览, 本站推荐Google Chrome.\n" +
"(PS: 当前主流浏览器都支持JSON)."
);
}
this.container = container;
this.indentation = 4; // number of spaces
this.width = container.clientWidth;
this.height = container.clientHeight;
this.frame = document.createElement("div");
this.frame.className = "jsoneditor-frame";
this.frame.onclick = function(event) {
// prevent default submit action when JSONFormatter is located inside a form
JSONEditor.Events.preventDefault(event);
};
// create menu
this.menu = document.createElement("div");
this.menu.className = "jsoneditor-menu";
this.frame.appendChild(this.menu);
// create format button
var buttonFormat = document.createElement("button");
//buttonFormat.innerHTML = 'Format';
buttonFormat.className = "jsoneditor-menu jsoneditor-format";
buttonFormat.title = "格式化JSON数据";
//buttonFormat.className = 'jsoneditor-button';
this.menu.appendChild(buttonFormat);
// create compact button
var buttonCompact = document.createElement("button");
//buttonCompact.innerHTML = 'Compact';
buttonCompact.className = "jsoneditor-menu jsoneditor-compact";
buttonCompact.title = "压缩JSON数据, 清除所有空白字符";
//buttonCompact.className = 'jsoneditor-button';
this.menu.appendChild(buttonCompact);
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 textarea = this.textarea;
// read the options
if (options) {
if (options.change) {
// register on change event
if (this.textarea.oninput === null) {
this.textarea.oninput = function() {
options.change();
};
} else {
// oninput is undefined. For IE8-
this.textarea.onchange = function() {
options.change();
};
}
}
if (options.indentation) {
this.indentation = Number(options.indentation);
}
}
var me = this;
buttonFormat.onclick = function() {
try {
var json = JSONEditor.parse(textarea.value);
textarea.value = JSON.stringify(json, null, me.indentation);
} catch (err) {
me.onError(err);
}
};
buttonCompact.onclick = function() {
try {
var json = JSONEditor.parse(textarea.value);
textarea.value = JSON.stringify(json);
} catch (err) {
me.onError(err);
}
};
this.container.appendChild(this.frame);
// load initial json object or string
if (typeof json == "string") {
this.setText(json);
} else {
this.set(json);
}
};
/**
* 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
};
/**
* Set json data in the formatter
* @param {Object} json
*/
JSONFormatter.prototype.set = function(json) {
this.textarea.value = JSON.stringify(json, null, this.indentation);
};
/**
* Get json data from the formatter
* @return {Object} json
*/
JSONFormatter.prototype.get = function() {
return JSONEditor.parse(this.textarea.value);
};
/**
* Get the text contents of the JSONFormatter
* @return {String} text
*/
JSONFormatter.prototype.getText = function() {
return this.textarea.value;
};
/**
* Set the text contents of the JSONFormatter
* @param {String} text
*/
JSONFormatter.prototype.setText = function(text) {
this.textarea.value = text;
};
/**
* @constructor JSONEditor.SearchBox
* Create a search box in given HTML container
* @param {JSONEditor} editor The JSON Editor to attach to
* @param {Element} container HTML container element of where to create the
* search box
*/
JSONEditor.SearchBox = function(editor, container) {
var searchBox = this;
this.editor = editor;
this.timeout = undefined;
this.delay = 200; // ms
this.lastText = undefined;
this.dom = {};
this.dom.container = container;
var table = document.createElement("table");
this.dom.table = table;
table.className = "jsoneditor-search";
container.appendChild(table);
var tbody = document.createElement("tbody");
this.dom.tbody = tbody;
table.appendChild(tbody);
var tr = document.createElement("tr");
tbody.appendChild(tr);
var td = document.createElement("td");
td.className = "jsoneditor-search";
tr.appendChild(td);
var results = document.createElement("div");
this.dom.results = results;
results.className = "jsoneditor-search-results";
td.appendChild(results);
td = document.createElement("td");
td.className = "jsoneditor-search";
tr.appendChild(td);
var divInput = document.createElement("div");
this.dom.input = divInput;
divInput.className = "jsoneditor-search";
divInput.title = "查找区块";
td.appendChild(divInput);
// table to contain the text input and search button
var tableInput = document.createElement("table");
tableInput.className = "jsoneditor-search-input";
divInput.appendChild(tableInput);
var tbodySearch = document.createElement("tbody");
tableInput.appendChild(tbodySearch);
tr = document.createElement("tr");
tbodySearch.appendChild(tr);
var refreshSearch = document.createElement("button");
refreshSearch.className = "jsoneditor-search-refresh";
td = document.createElement("td");
td.appendChild(refreshSearch);
tr.appendChild(td);
var search = document.createElement("input");
this.dom.search = search;
search.className = "jsoneditor-search";
search.oninput = function(event) {
searchBox.onDelayedSearch(event);
};
search.onchange = function(event) {
// For IE 8
searchBox.onSearch(event);
};
search.onkeydown = function(event) {
searchBox.onKeyDown(event);
};
search.onkeyup = function(event) {
searchBox.onKeyUp(event);
};
refreshSearch.onclick = function(event) {
search.select();
};
// TODO: ESC in FF restores the last input, is a FF bug, https://bugzilla.mozilla.org/show_bug.cgi?id=598819
td = document.createElement("td");
td.appendChild(search);
tr.appendChild(td);
var searchNext = document.createElement("button");
searchNext.title = "下一个 (Enter)";
searchNext.className = "jsoneditor-search-next";
searchNext.onclick = function() {
searchBox.next();
};
td = document.createElement("td");
td.appendChild(searchNext);
tr.appendChild(td);
var searchPrevious = document.createElement("button");
searchPrevious.title = "上一个 (Shift+Enter)";
searchPrevious.className = "jsoneditor-search-previous";
searchPrevious.onclick = function() {
searchBox.previous();
};
td = document.createElement("td");
td.appendChild(searchPrevious);
tr.appendChild(td);
};
/**
* Go to the next search result
*/
JSONEditor.SearchBox.prototype.next = function() {
if (this.results != undefined) {
var index = this.resultIndex != undefined ? this.resultIndex + 1 : 0;
if (index > this.results.length - 1) {
index = 0;
}
this.setActiveResult(index);
}
};
/**
* Go to the prevous search result
*/
JSONEditor.SearchBox.prototype.previous = function() {
if (this.results != undefined) {
var max = this.results.length - 1;
var index = this.resultIndex != undefined ? this.resultIndex - 1 : max;
if (index < 0) {
index = max;
}
this.setActiveResult(index);
}
};
/**
* Set new value for the current active result
* @param {Number} index
*/
JSONEditor.SearchBox.prototype.setActiveResult = function(index) {
// de-activate current active result
if (this.activeResult) {
var prevNode = this.activeResult.node;
var prevElem = this.activeResult.elem;
if (prevElem == "field") {
delete prevNode.searchFieldActive;
} else {
delete prevNode.searchValueActive;
}
prevNode.updateDom();
}
if (!this.results || !this.results[index]) {
// out of range, set to undefined
this.resultIndex = undefined;
this.activeResult = undefined;
return;
}
this.resultIndex = index;
// set new node active
var node = this.results[this.resultIndex].node;
var elem = this.results[this.resultIndex].elem;
if (elem == "field") {
node.searchFieldActive = true;
} else {
node.searchValueActive = true;
}
this.activeResult = this.results[this.resultIndex];
node.updateDom();
node.scrollTo();
};
/**
* Set the focus to the currently active result. If there is no currently
* active result, the next search result will get focus
*/
JSONEditor.SearchBox.prototype.focusActiveResult = function() {
if (!this.activeResult) {
this.next();
}
if (this.activeResult) {
this.activeResult.node.focus(this.activeResult.elem);
}
};
/**
* Cancel any running onDelayedSearch.
*/
JSONEditor.SearchBox.prototype.clearDelay = function() {
if (this.timeout != undefined) {
clearTimeout(this.timeout);
delete this.timeout;
}
};
/**
* Start a timer to execute a search after a short delay.
* Used for reducing the number of searches while typing.
* @param {Event} event
*/
JSONEditor.SearchBox.prototype.onDelayedSearch = function(event) {
// execute the search after a short delay (reduces the number of
// search actions while typing in the search text box)
this.clearDelay();
var searchBox = this;
this.timeout = setTimeout(function(event) {
searchBox.onSearch(event);
}, this.delay);
};
/**
* Handle onSearch event
* @param {Event} event
* @param {boolean} [forceSearch] If true, search will be executed again even
* when the search text is not changed.
* Default is false.
*/
JSONEditor.SearchBox.prototype.onSearch = function(event, forceSearch) {
this.clearDelay();
var value = this.dom.search.value;
var text = value.length > 0 ? value : undefined;
if (text != this.lastText || forceSearch) {
// only search again when changed
this.lastText = text;
this.results = this.editor.search(text);
this.setActiveResult(undefined);
// display search results
if (text != undefined) {
var resultCount = this.results.length;
switch (resultCount) {
case 0:
this.dom.results.innerHTML = "区块/值未找到";
break;
default:
this.dom.results.innerHTML =
"找到 " + resultCount + " 个节点";
break;
}
} else {
this.dom.results.innerHTML = "";
}
}
};
/**
* Handle onKeyDown event in the input box
* @param {Event} event
*/
JSONEditor.SearchBox.prototype.onKeyDown = function(event) {
event = event || window.event;
var keynum = event.which || event.keyCode;
if (keynum == 27) {
// ESC
this.dom.search.value = ""; // clear search
this.onSearch(event);
JSONEditor.Events.preventDefault(event);
JSONEditor.Events.stopPropagation(event);
} else if (keynum == 13) {
// Enter
if (event.ctrlKey) {
// force to search again
this.onSearch(event, true);
} else if (event.shiftKey) {
// move to the previous search result
this.previous();
} else {
// move to the next search result
this.next();
}
JSONEditor.Events.preventDefault(event);
JSONEditor.Events.stopPropagation(event);
}
};
/**
* Handle onKeyUp event in the input box
* @param {Event} event
*/
JSONEditor.SearchBox.prototype.onKeyUp = function(event) {
event = event || window.event;
var keynum = event.which || event.keyCode;
if (keynum != 27 && keynum != 13) {
// !ESC and !Enter
this.onDelayedSearch(event); // For IE 8
}
};
// create namespace for event methods
JSONEditor.Events = {};
/**
* Add and event listener. Works for all browsers
* @param {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 {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
* @param {Event} event
*/
JSONEditor.Events.stopPropagation = function(event) {
if (!event) 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.
* @param {Event} event
*/
JSONEditor.Events.preventDefault = function(event) {
if (!event) 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 {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;
var body = document.body;
while (elem != null && elem != body) {
left += elem.offsetLeft;
left -= elem.scrollLeft;
elem = elem.offsetParent;
}
return left;
};
/**
* Retrieve the absolute top value of a DOM element
* @param {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;
var body = document.body;
while (elem != null && elem != body) {
top += elem.offsetTop;
top -= elem.scrollTop;
elem = elem.offsetParent;
}
return top;
};
/**
* add a className to the given elements style
* @param {Element} elem
* @param {String} className
*/
JSONEditor.addClassName = function(elem, className) {
var classes = elem.className.split(" ");
if (classes.indexOf(className) == -1) {
classes.push(className); // add the class to the array
elem.className = classes.join(" ");
}
};
/**
* add a className to the given elements style
* @param {Element} elem
* @param {String} className
*/
JSONEditor.removeClassName = function(elem, className) {
var classes = elem.className.split(" ");
var index = classes.indexOf(className);
if (index != -1) {
classes.splice(index, 1); // remove the class from the array
elem.className = classes.join(" ");
}
};
/**
* Strip the formatting from the contents of a div
* the formatting from the div itself is not stripped, only from its childs.
* @param {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 = attributes.length - 1; j >= 0; 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
* @param {Element} contentEditableElement
*/
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
}
};
/**
* Get the inner text of an HTML element (for example a div element)
* @param {Element} element
* @param {Object} [buffer]
* @return {String} innerText
*/
JSONEditor.getInnerText = function(element, buffer) {
var first = buffer == undefined;
if (first) {
buffer = {
text: "",
flush: function() {
var text = this.text;
this.text = "";
return text;
},
set: function(text) {
this.text = text;
}
};
}
// text node
if (element.nodeValue) {
return buffer.flush() + element.nodeValue;
}
// divs or other HTML elements
if (element.hasChildNodes()) {
var childNodes = element.childNodes;
var innerText = "";
for (var i = 0, iMax = childNodes.length; i < iMax; i++) {
var child = childNodes[i];
if (child.nodeName == "DIV" || child.nodeName == "P") {
var prevChild = childNodes[i - 1];
var prevName = prevChild ? prevChild.nodeName : undefined;
if (
prevName &&
prevName != "DIV" &&
prevName != "P" &&
prevName != "BR"
) {
innerText += "\n";
buffer.flush();
}
innerText += JSONEditor.getInnerText(child, buffer);
buffer.set("\n");
} else if (child.nodeName == "BR") {
innerText += buffer.flush();
buffer.set("\n");
} else {
innerText += JSONEditor.getInnerText(child, buffer);
}
}
return innerText;
} else {
if (
element.nodeName == "P" &&
JSONEditor.getInternetExplorerVersion() != -1
) {
// On Internet Explorer, a <p> with hasChildNodes()==false is
// rendered with a new line. Note that a <p> with
// hasChildNodes()==true is rendered without a new line
// Other browsers always ensure there is a <br> inside the <p>,
// and if not, the <p> does not render a new line
return buffer.flush();
}
}
// br or unknown
return "";
};
/**
* 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._ieVersion = undefined;
JSONEditor.getInternetExplorerVersion = function() {
if (JSONEditor._ieVersion == undefined) {
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);
}
}
JSONEditor._ieVersion = rv;
}
return JSONEditor._ieVersion;
};
JSONEditor.ieVersion = JSONEditor.getInternetExplorerVersion();
/**
* Parse JSON using the parser built-in in the browser.
* On exception, the jsonString is validated and a detailed error is thrown.
* @param {String} jsonString
*/
JSONEditor.parse = function(jsonString) {
try {
return JSON.parse(jsonString);
} catch (err) {
// get a detailed error message using validate
var message = JSONEditor.validate(jsonString) || err;
throw new Error(message);
}
};
/**
* Validate a string containing a JSON object
* This method uses JSONLint to validate the String. If JSONLint is not
* available, the built-in JSON parser of the browser is used.
* @param {String} jsonString String with an (invalid) JSON object
* @return {String | undefined} Returns undefined when the string is valid JSON,
* returns a string with an error message when
* the data is invalid
*/
JSONEditor.validate = function(jsonString) {
var message = undefined;
try {
if (window.jsonlint) {
window.jsonlint.parse(jsonString);
} else {
JSON.parse(jsonString);
}
} catch (err) {
message = '<pre class="error">' + err.toString() + "</pre>";
if (window.jsonlint) {
message +=
'<div id="by-jsonlint"> <a class="error" href="http://zaach.github.com/jsonlint/" target="_blank">' +
"JSONLint" +
"</a> 提供验证.</div>";
}
}
return message;
};
function jsonArea(ob) {
let inputEle = ob.el;
let insert = ob.insert;
let nth = ob.nth;
let change = ob.change;
let thisare = new Object();
if (!inputEle) {
throw new Error("没有提供数据.");
}
// if target to multi dom
if (nth) {
thisare.data = document.querySelectorAll(inputEle)[nth - 1];
} else {
let all = document.querySelectorAll(inputEle);
for (var i = 0; i < all.length; i++) {
jsonArea({ el: inputEle, insert: insert, nth: i + 1, change: change });
}
// thisare.data = document.querySelector(inputEle);
return;
}
// create container
thisare.container = document.createElement("div");
thisare.container.style.width = "100%";
thisare.container.style.height = "auto";
thisare.data.parentElement.insertBefore(thisare.container, thisare.data);
// check wether is a json
thisare.isJson = function(str) {
if (!isNaN(str)) return false;
if (str == "") return false;
if (str == '""') return false;
if (typeof str == "string") {
try {
JSON.parse(str);
return true;
} catch (e) {
// console.log(e);
return false;
}
}
console.log("不是丢�个stringify");
};
// json data
thisare.jsonval = "{}";
// callback when change
thisare.syn = function() {};
// whether is textarea or input
if (thisare.data.tagName == "TEXTAREA") {
thisare.jsonval = thisare.data.innerHTML;
thisare.syn = function() {
thisare.data.innerHTML = JSON.stringify(thisare.jsonEditor.get());
change(thisare.jsonEditor.get());
};
} else if (thisare.data.tagName == "INPUT") {
thisare.jsonval = thisare.data.value;
thisare.syn = function() {
thisare.data.value = JSON.stringify(thisare.jsonEditor.get());
change(thisare.jsonEditor.get());
};
}
// if not json, and not insert ,then json editer
thisare.hashJson = thisare.isJson(thisare.jsonval);
if (!thisare.hashJson && !insert) return;
thisare.data.style.display = "none";
// create jsoneditor for father
thisare.jsonEditor = new JSONEditor(thisare.container, {
change: function() {
thisare.lastChanged = thisare.jsonEditor;
thisare.syn();
}
});
if (thisare.hashJson) {
thisare.jsonEditor.set(JSON.parse(thisare.jsonval));
}
console.log("in jsonArea");
return thisare;
}