jsoneditor/src_old/js/ModeSwitcher.js

115 lines
2.7 KiB
JavaScript

'use strict';
var ContextMenu = require('./ContextMenu');
/**
* Create a select box to be used in the editor menu's, which allows to switch mode
* @param {HTMLElement} container
* @param {String[]} modes Available modes: 'code', 'form', 'text', 'tree', 'view'
* @param {String} current Available modes: 'code', 'form', 'text', 'tree', 'view'
* @param {function(mode: string)} onSwitch Callback invoked on switch
* @constructor
*/
function ModeSwitcher(container, modes, current, onSwitch) {
// available modes
var availableModes = {
code: {
'text': 'Code',
'title': 'Switch to code highlighter',
'click': function () {
onSwitch('code')
}
},
form: {
'text': 'Form',
'title': 'Switch to form editor',
'click': function () {
onSwitch('form');
}
},
text: {
'text': 'Text',
'title': 'Switch to plain text editor',
'click': function () {
onSwitch('text');
}
},
tree: {
'text': 'Tree',
'title': 'Switch to tree editor',
'click': function () {
onSwitch('tree');
}
},
view: {
'text': 'View',
'title': 'Switch to tree view',
'click': function () {
onSwitch('view');
}
}
};
// list the selected modes
var items = [];
for (var i = 0; i < modes.length; i++) {
var mode = modes[i];
var item = availableModes[mode];
if (!item) {
throw new Error('Unknown mode "' + mode + '"');
}
item.className = 'jsoneditor-type-modes' + ((current == mode) ? ' jsoneditor-selected' : '');
items.push(item);
}
// retrieve the title of current mode
var currentMode = availableModes[current];
if (!currentMode) {
throw new Error('Unknown mode "' + current + '"');
}
var currentTitle = currentMode.text;
// create the html element
var box = document.createElement('button');
box.className = 'jsoneditor-modes jsoneditor-separator';
box.innerHTML = currentTitle + ' &#x25BE;';
box.title = 'Switch editor mode';
box.onclick = function () {
var menu = new ContextMenu(items);
menu.show(box);
};
var frame = document.createElement('div');
frame.className = 'jsoneditor-modes';
frame.style.position = 'relative';
frame.appendChild(box);
container.appendChild(frame);
this.dom = {
container: container,
box: box,
frame: frame
};
}
/**
* Set focus to switcher
*/
ModeSwitcher.prototype.focus = function () {
this.dom.box.focus();
};
/**
* Destroy the ModeSwitcher, remove from DOM
*/
ModeSwitcher.prototype.destroy = function () {
if (this.dom && this.dom.frame && this.dom.frame.parentNode) {
this.dom.frame.parentNode.removeChild(this.dom.frame);
}
this.dom = null;
};
module.exports = ModeSwitcher;