jsoneditor/app/web/app.js

338 lines
9.9 KiB
JavaScript

/*!
* @file app.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) 2011-2013 Jos de Jong, http://jsoneditoronline.org
*
* @author Jos de Jong, <wjosdejong@gmail.com>
* @date 2013-01-05
*/
var editor = null;
var formatter = null;
var app = {};
/**
* Get the JSON from the formatter and load it in the editor
*/
app.formatterToEditor = function() {
try {
editor.set(formatter.get());
}
catch (err) {
app.notify.showError(err);
}
};
/**
* Get the JSON from the editor and load it into the formatter
*/
app.editorToFormatter = function () {
try {
formatter.set(editor.get());
}
catch (err) {
app.notify.showError(err);
}
};
/**
* Load the interface (editor, formatter, splitter)
*/
// TODO: split the method load in multiple methods, it is too large
app.load = function() {
try {
// notification handler
app.notify = new Notify();
// retriever for loading/saving files
app.retriever = new FileRetriever({
scriptUrl: 'fileretriever.php',
notify: app.notify
});
// default json document
var json = {
"array": [1, 2, 3],
"boolean": true,
"null": null,
"number": 123,
"object": {"a": "b", "c": "d", "e": "f"},
"string": "Hello World"
};
// load url if query parameters contains a url
if (window.QueryParams) {
var qp = new QueryParams();
var url = qp.getValue('url');
if (url) {
json = {};
app.openUrl(url);
}
}
// Store whether editor or formatter is last changed
app.lastChanged = undefined;
// formatter
var container = document.getElementById("jsonformatter");
formatter = new jsoneditor.JSONFormatter(container, {
change: function () {
app.lastChanged = formatter;
}
});
formatter.set(json);
formatter.onError = function (err) {
app.notify.showError(err);
};
// editor
container = document.getElementById("jsoneditor");
editor = new jsoneditor.JSONEditor(container, {
change: function () {
app.lastChanged = editor;
}, mode:'form'
});
editor.set(json);
// TODO: automatically synchronize data of formatter and editor? (editor should keep its state though)
// splitter
var domSplitter = document.getElementById('splitter');
app.splitter = new Splitter({
container: domSplitter,
change: function () {
app.resize();
}
});
// button Formatter-to-Editor
domSplitter.appendChild(document.createElement('br'));
domSplitter.appendChild(document.createElement('br'));
domSplitter.appendChild(document.createElement('br'));
var toForm = document.createElement('button');
toForm.id = 'toForm';
toForm.title = 'JSON to Editor';
toForm.className = 'convert';
toForm.innerHTML = '<div class="convert-right"></div>';
toForm.onclick = function () {
this.focus();
app.formatterToEditor();
};
domSplitter.appendChild(toForm);
// button Editor-to-Formatter
domSplitter.appendChild(document.createElement('br'));
domSplitter.appendChild(document.createElement('br'));
var toJSON = document.createElement('button');
toJSON.id = 'toJSON';
toJSON.title = 'Editor to JSON';
toJSON.className = 'convert';
toJSON.innerHTML = '<div class="convert-left"></div>';
toJSON.onclick = function () {
this.focus();
app.editorToFormatter();
};
domSplitter.appendChild(toJSON);
// web page resize handler
jsoneditor.util.addEventListener(window, 'resize', app.resize);
// clear button
var domClear = document.getElementById('clear');
domClear.onclick = app.clearFile;
/* TODO: enable clicking on open to execute the default, "open file"
// open button
var domOpen = document.getElementById('open');
var domOpenMenuButton = document.getElementById('openMenuButton');
domOpen.onclick = function (event) {
event = event || window.event; // for IE8
var target = event.target || event.srcElement;
if (target == domOpenMenuButton ||
(event.offsetX > domOpen.offsetWidth - domOpenMenuButton.offsetWidth)) {
// clicked on the menu button
}
else {
app.openFile();
}
};
*/
// menu button open file
var domMenuOpenFile = document.getElementById('menuOpenFile');
domMenuOpenFile.onclick = function (event) {
app.openFile();
jsoneditor.util.stopPropagation(event);
jsoneditor.util.preventDefault(event);
};
// menu button open url
var domMenuOpenUrl = document.getElementById('menuOpenUrl');
domMenuOpenUrl.onclick = function (event) {
app.openUrl();
jsoneditor.util.stopPropagation(event);
jsoneditor.util.preventDefault(event);
};
// save button
var domSave = document.getElementById('save');
domSave.onclick = app.saveFile;
// TODO: implement a focus method
formatter.textarea.focus();
// enforce FireFox to not do spell checking on any input field
document.body.spellcheck = false;
} catch (err) {
app.notify.showError(err);
}
};
/**
* Callback method called when a file or url is opened.
* @param {Error} err
* @param {String} data
*/
app.openCallback = function (err, data) {
if (!err) {
if (data != undefined) {
formatter.setText(data);
try {
var json = jsoneditor.util.parse(data);
editor.set(json);
}
catch (err) {
editor.set({});
app.notify.showError(err);
}
}
}
else {
app.notify.showError(err);
}
};
/**
* Open a file explorer to select a file and open the file
*/
app.openFile = function() {
app.retriever.loadFile(app.openCallback);
};
/**
* Open a url. If no url is provided as parameter, a dialog will be opened
* to select a url.
* @param {String} [url]
*/
app.openUrl = function (url) {
if (!url) {
app.retriever.loadUrlDialog(app.openCallback);
}
else {
app.retriever.loadUrl(url, app.openCallback);
}
};
/**
* Open a file explorer to save the file.
*/
app.saveFile = function () {
// first synchronize the editors and formatters contents
if (app.lastChanged == editor) {
app.editorToFormatter();
}
/* TODO: also sync from formatter to editor? will clear the history ...
if (app.lastChanged == formatter) {
app.formatterToEditor();
}
*/
app.lastChanged = undefined;
// save the text from the formatter
// TODO: show a 'saving...' notification
var data = formatter.getText();
app.retriever.saveFile(data, function (err) {
if (err) {
app.notify.showError(err);
}
});
};
/**
* Clear the current file
*/
app.clearFile = function () {
var json = {};
formatter.set(json);
editor.set(json);
};
app.resize = function() {
var domEditor = document.getElementById('jsoneditor');
var domFormatter = document.getElementById('jsonformatter');
var domSplitter = document.getElementById('splitter');
var domAd = document.getElementById('ad');
var domAdInfo = document.getElementById('adInfo');
var width = window.innerWidth || document.body.offsetWidth || document.documentElement.offsetWidth;
var height = window.innerHeight || document.body.offsetHeight || document.documentElement.offsetHeight;
var adWidth = domAd ? domAd.clientWidth : 0;
var splitterWidth = domSplitter.clientWidth;
if (adWidth) {
width -= (adWidth + 15); // Not so nice, +15 here for the margin
}
if (app.splitter) {
var splitterLeft = width * app.splitter.getValue();
// resize formatter
domFormatter.style.width = Math.round(splitterLeft) + 'px';
// resize editor
// the width has a -1 to prevent the width from being just half a pixel
// wider than the window, causing the content elements to wrap...
domEditor.style.left = Math.round(splitterLeft + splitterWidth) + 'px';
domEditor.style.width = Math.round(width - splitterLeft - splitterWidth - 1) + 'px';
}
// resize ad text
if (domAdInfo && domAd) {
var infoHeight = domAdInfo.clientHeight;
domAd.style.paddingTop = infoHeight + 'px';
}
};
/**
* Hide the advertisement
*/
app.hideAds = function() {
var domAd = document.getElementById("ad");
if (domAd) {
domAd.parentNode.removeChild(domAd);
app.resize();
}
};