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window.js
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window.js
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/*!
* OS.js - JavaScript Cloud/Web Desktop Platform
*
* Copyright (c) 2011-2017, Anders Evenrud <andersevenrud@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @author Anders Evenrud <andersevenrud@gmail.com>
* @licence Simplified BSD License
*/
import FileMetadata from 'vfs/file';
import Application from 'core/application';
import WindowManager from 'core/window-manager';
import Element from 'gui/element';
import GUIScheme from 'gui/scheme';
import EventHandler from 'helpers/event-handler';
import Theme from 'core/theme';
import * as DOM from 'utils/dom';
import * as GUI from 'utils/gui';
import * as Events from 'utils/events';
import * as Compability from 'utils/compability';
import * as Keycodes from 'utils/keycodes';
import * as Menu from 'gui/menu';
import {_} from 'core/locales';
import {running} from 'core/init';
/**
* The predefined events are as follows:
* <pre><code>
* init When window is being inited and rendered => (root, scheme)
* inited When window has been inited and rendered => (scheme)
* focus When window gets focus => ()
* blur When window loses focus => ()
* destroy When window is closed => ()
* maximize When window is maxmimized => ()
* minimize When window is minimized => ()
* restore When window is restored => ()
* resize When window is resized => (w, h)
* resized Triggers after window is resized => (w, h)
* move When window is moved => (x, y)
* moved Triggers after window is moved => (x, y)
* keydown When keydown => (ev, keyCode, shiftKey, ctrlKey, altKey)
* keyup When keyup => (ev, keyCode, shiftKey, ctrlKey, altKey)
* keypress When keypress => (ev, keyCode, shiftKey, ctrlKey, altKey)
* drop When a drop event occurs => (ev, type, item, args, srcEl)
* drop:upload When a upload file was dropped => (ev, <File>, args)
* drop:file When a internal file object was dropped => (ev, VFS.File, args, srcEl)
* </code></pre>
* @typedef WindowEvent
*/
function camelCased(str) {
return str.replace(/_([a-z])/g, function(g) {
return g[1].toUpperCase();
});
}
/////////////////////////////////////////////////////////////////////////////
// HELPERS
/////////////////////////////////////////////////////////////////////////////
/*
* Get next z-index for Window
* @return integer
*/
const getNextZindex = (function() {
let _lzindex = 1;
let _ltzindex = 100000;
return function(ontop) {
if ( typeof ontop !== 'undefined' && ontop === true ) {
return (_ltzindex += 2);
}
return (_lzindex += 2);
};
})();
/*
* Get viewport (Wrapper)
*
* @return {Object}
*/
function getWindowSpace() {
const wm = WindowManager.instance;
if ( wm ) {
return wm.getWindowSpace();
}
return {
top: 0,
left: 0,
width: document.body.offsetWidth,
height: document.body.offsetHeight
};
}
/*
* Wrapper to wait for animations to finish
*/
function waitForAnimation(win, cb) {
const wm = WindowManager.instance;
const anim = wm ? wm.getSetting('animations') : false;
if ( anim ) {
win._animationCallback = cb;
} else {
cb();
}
}
/*
* Creates media queries from configuration file
*/
const createMediaQueries = (function() {
let queries;
function _createQueries() {
let result = {};
const wm = WindowManager.instance;
if ( wm ) {
const qs = wm.getDefaultSetting('mediaQueries') || {};
Object.keys(qs).forEach(function(k) {
if ( qs[k] ) {
result[k] = function(w, h, ref) {
return w <= qs[k];
};
}
});
}
return result;
}
return function() {
if ( !queries ) {
queries = _createQueries();
}
return queries;
};
})();
/*
* Checks window dimensions and makes media queries dynamic
*/
function checkMediaQueries(win) {
const wm = WindowManager.instance;
if ( !win._$element || !wm ) {
return;
}
let n = '';
let k;
const qs = win._properties.media_queries || {};
const w = win._$element.offsetWidth;
const h = win._$element.offsetHeight;
for ( k in qs ) {
if ( qs.hasOwnProperty(k) ) {
if ( qs[k](w, h, win) ) {
n = k;
break;
}
}
}
win._$element.setAttribute('data-media', n);
}
/////////////////////////////////////////////////////////////////////////////
// WINDOW
/////////////////////////////////////////////////////////////////////////////
let _WID = 0;
let _DEFAULT_WIDTH = 200;
let _DEFAULT_HEIGHT = 200;
let _DEFAULT_MIN_HEIGHT = 150;
let _DEFAULT_MIN_WIDTH = 150;
let _DEFAULT_SND_VOLUME = 1.0;
let _NAMES = [];
/**
* Base Window Class
*
* @desc Class used for creating windows.
*
* @abstract
* @mixes EventHandler
* @throws {Error} On invalid arguments
*/
export default class Window {
/**
* @param {String} name Window name (unique)
* @param {Object} opts List of options
* @param {String} opts.title Window Title
* @param {String} opts.icon Window Icon
* @param {Number} [opts.x] X Position
* @param {Number} [opts.y] Y Position
* @param {Number} [opts.width] Width
* @param {Number} [opts.height] Height
* @param {String} [opts.tag] Window Tag
* @param {String} [opts.gravity] Window Gravity
* @param {boolean} [opts.auto_size=false] Window automatically fills to content on init
* @param {boolean} [opts.allow_move] Allow movment
* @param {boolean} [opts.allow_resize] Allow resize
* @param {boolean} [opts.allow_minimize] Allow minimize
* @param {boolean} [opts.allow_maximize] Allow maximize
* @param {boolean} [opts.allow_close] Allow closing
* @param {boolean} [opts.allow_windowlist] Allow appear in WindowList (Panel)
* @param {boolean} [opts.allow_drop] Allow DnD
* @param {boolean} [opts.allow_iconmenu] Allow Menu when click on Window Icon
* @param {boolean} [opts.allow_ontop] Allow ontop
* @param {boolean} [opts.allow_hotkeys] Allow usage of hotkeys
* @param {boolean} [opts.allow_session] Allow to store for session
* @param {boolean} [opts.key_capture] Allow key capture (UNSUSED ?!)
* @param {boolean} [opts.min_width] Minimum allowed width
* @param {boolean} [opts.min_height] Minimum allowed height
* @param {boolean} [opts.max_width] Maximum allowed width
* @param {boolean} [opts.max_height] Maximum allowed height
* @param {Object} [opts.media_queries] Media queries to apply CSS attribute => {name: fn(w,h,win) => Boolean }
* @param {String} [opts.sound] Sound name when window is displayed
* @param {Number} [opts.sound_volume] Sound volume
* @param {Function} [opts.translator] Translation method
* @param {Application} appRef Application Reference
*/
constructor(name, opts, appRef) {
if ( _NAMES.indexOf(name) >= 0 ) {
throw new Error(_('ERR_WIN_DUPLICATE_FMT', name));
}
if ( appRef && !(appRef instanceof Application) ) {
throw new TypeError('appRef given was not instance of Application');
}
opts = Object.assign({}, {
icon: Theme.getIcon('apps/preferences-system-windows.png'),
width: _DEFAULT_WIDTH,
height: _DEFAULT_HEIGHT,
title: name,
tag: name,
auto_size: false
}, opts);
console.group('Window::constructor()', _WID, arguments);
/**
* The outer container
* @type {Node}
*/
this._$element = null;
/**
* The inner (content) container
* @type {Node}
*/
this._$root = null;
/**
* The top container
* @type {Node}
*/
this._$top = null;
/**
* The icon element
* @type {Node}
*/
this._$winicon = null;
/**
* The loading overlay
* @type {Node}
*/
this._$loading = null;
/**
* The disabled overlay
* @type {Node}
*/
this._$disabled = null;
/**
* The resize underlay
* @type {Node}
*/
this._$resize = null;
/**
* The warning overlay
* @type {Node}
*/
this._$warning = null;
/**
* Constructor options copy
* @type {Object}
*/
this._opts = opts;
/**
* Application reference
* @type {Application}
*/
this._app = appRef || null;
/**
* If Window has been destroyed
* @type {Boolean}
*/
this._destroyed = false;
/**
* If Window was restored
* @type {Boolean}
*/
this._restored = false;
/**
* If Window is finished loading
* @type {Boolean}
*/
this._loaded = false;
/**
* If Window is finished initing
* @type {Boolean}
*/
this._initialized = false;
/**
* If Window is currently disabled
* @type {Boolean}
*/
this._disabled = true;
/**
* If Window is currently loading
* @type {Boolean}
*/
this._loading = false;
/**
* Window ID (Internal)
* @type {Number}
*/
this._wid = _WID;
/**
* Window Icon
* @type {String}
*/
this._icon = opts.icon;
/**
* Window Name
* @type {String}
*/
this._name = name;
/**
* Window Title
* @type {String}
*/
this._title = opts.title;
/**
* Window Tag (ex. Use this when you have a group of windows)
* @type {String}
*/
this._tag = opts.tag;
/**
* Window Position With x and y
* @type {Object}
*/
this._position = {x: opts.x, y: opts.y};
/**
* Window Dimension With w and h
* @type {Object}
*/
this._dimension = {w: opts.width, h: opts.height};
/**
* Children
* @return {Window[]}
*/
this._children = [];
/**
* Parent
* @type {Window}
*/
this._parent = null;
/**
* Original Window title (The one set on construct)
* @type {String}
*/
this._origtitle = this._title;
/**
* Last dimension (before window movement)
* @type {Object}
*/
this._lastDimension = this._dimension;
/**
* Last position (before window movement)
* @type {Object}
*/
this._lastPosition = this._position;
/**
* The sound this window makes when it is created
* @type {String}
*/
this._sound = null;
/**
* The volume of the window sound
* @type {Number} Between 0.0 and 1.0
*/
this._soundVolume = _DEFAULT_SND_VOLUME;
/**
* The active GUI Scheme
* @type {GUIScheme}
*/
this._scheme = null;
/**
* Window Properties
* @type {Object}
*/
this._properties = {
gravity: null,
allow_move: true,
allow_resize: true,
allow_minimize: true,
allow_maximize: true,
allow_close: true,
allow_windowlist: true,
allow_drop: false,
allow_iconmenu: true,
allow_ontop: true,
allow_hotkeys: true,
allow_session: true,
key_capture: false,
start_focused: true,
min_width: _DEFAULT_MIN_HEIGHT,
min_height: _DEFAULT_MIN_WIDTH,
max_width: null,
max_height: null,
media_queries: createMediaQueries()
};
/**
* Window State
* @type {Object}
*/
this._state = {
focused: false,
modal: false,
minimized: false,
maximized: false,
ontop: false,
onbottom: false
};
this._animationCallback = null;
//
// Internals
//
this._queryTimer = null;
this._evHandler = new EventHandler(name, [
'focus', 'blur', 'destroy', 'maximize', 'minimize', 'restore',
'move', 'moved', 'resize', 'resized',
'keydown', 'keyup', 'keypress',
'drop', 'drop:upload', 'drop:file'
]);
//
// Inherit properties given in arguments
//
Object.keys(opts).forEach((k) => {
if ( typeof this._properties[k] !== 'undefined' ) {
this._properties[k] = opts[k];
} else if ( typeof this._state[k] !== 'undefined' && k !== 'focused' ) {
this._state[k] = opts[k];
} else if ( ('sound', 'sound_volume').indexOf(k) !== -1 ) {
this['_' + camelCased(k)] = opts[k];
}
});
//
// Make sure that properties are correct according to requested arguments
//
((properties, position) => {
if ( !properties.gravity && (typeof position.x === 'undefined') || (typeof position.y === 'undefined') ) {
const wm = WindowManager.instance;
const np = wm ? wm.getWindowPosition() : {x: 0, y: 0};
position.x = np.x;
position.y = np.y;
}
})(this._properties, this._position);
((properties, dimension) => {
if ( properties.min_height && (dimension.h < properties.min_height) ) {
dimension.h = properties.min_height;
}
if ( properties.max_width && (dimension.w < properties.max_width) ) {
dimension.w = properties.max_width;
}
if ( properties.max_height && (dimension.h > properties.max_height) ) {
dimension.h = properties.max_height;
}
if ( properties.max_width && (dimension.w > properties.max_width) ) {
dimension.w = properties.max_width;
}
})(this._properties, this._dimension);
((position, dimension) => {
if ( appRef && appRef.__args && appRef.__args.__windows__ ) {
appRef.__args.__windows__.forEach((restore) => {
if ( !this._restored && restore.name && restore.name === this._name ) {
position.x = restore.position.x;
position.y = restore.position.y;
if ( this._properties.allow_resize ) {
dimension.w = restore.dimension.w;
dimension.h = restore.dimension.h;
}
console.info('RESTORED FROM SESSION', restore);
this._restored = true;
}
});
}
})(this._position, this._dimension);
((properties, position, dimension, restored) => {
const grav = properties.gravity;
if ( grav && !restored ) {
if ( grav === 'center' ) {
position.y = (window.innerHeight / 2) - (this._dimension.h / 2);
position.x = (window.innerWidth / 2) - (this._dimension.w / 2);
} else {
const space = getWindowSpace();
if ( grav.match(/^south/) ) {
position.y = space.height - dimension.h;
} else {
position.y = space.top;
}
if ( grav.match(/west$/) ) {
position.x = space.left;
} else {
position.x = space.width - dimension.w;
}
}
}
})(this._properties, this._position, this._dimension, this._restored);
console.debug('State', this._state);
console.debug('Properties', this._properties);
console.debug('Position', this._position);
console.debug('Dimension', this._dimension);
console.groupEnd();
_WID++;
}
/**
* Initialize the Window
*
* This creates all elements and attaches basic events to them.
* If you are looking for move/resize events, they are located in
* the WindowManager.
*
* @param {WindowManager} _wm Window Manager reference
* @param {Application} _app Application reference
*
* @return {Node} The Window DOM element
*/
init(_wm, _app) {
if ( this._initialized || this._loaded ) {
return this._$root;
}
// Create DOM
this._$element = DOM.$create('application-window', {
className: ((n, t) => {
const classNames = ['Window', DOM.$safeName(n)];
if ( t && (n !== t) ) {
classNames.push(DOM.$safeName(t));
}
return classNames;
})(this._name, this._tag).join(' '),
style: {
width: this._dimension.w + 'px',
height: this._dimension.h + 'px',
top: this._position.y + 'px',
left: this._position.x + 'px',
zIndex: getNextZindex(this._state.ontop)
},
data: {
window_id: this._wid,
allow_resize: this._properties.allow_resize,
allow_minimize: this._properties.allow_minimize,
allow_maximize: this._properties.allow_maximize,
allow_close: this._properties.allow_close
},
aria: {
role: 'application',
live: 'polite',
hidden: 'false'
}
});
this._$root = document.createElement('application-window-content');
this._$resize = document.createElement('application-window-resize');
['nw', 'n', 'ne', 'e', 'se', 's', 'sw', 'w'].forEach((i) => {
let h = document.createElement('application-window-resize-handle');
h.setAttribute('data-direction', i);
this._$resize.appendChild(h);
h = null;
});
this._$loading = document.createElement('application-window-loading');
this._$disabled = document.createElement('application-window-disabled');
this._$top = document.createElement('application-window-top');
this._$winicon = document.createElement('application-window-icon');
this._$winicon.setAttribute('role', 'button');
this._$winicon.setAttribute('aria-haspopup', 'true');
this._$winicon.setAttribute('aria-label', 'Window Menu');
const windowTitle = document.createElement('application-window-title');
windowTitle.setAttribute('role', 'heading');
// Bind events
let preventTimeout;
const _onanimationend = (ev) => {
if ( typeof this._animationCallback === 'function') {
clearTimeout(preventTimeout);
preventTimeout = setTimeout(() => {
this._animationCallback(ev);
this._animationCallback = false;
preventTimeout = clearTimeout(preventTimeout);
}, 10);
}
};
Events.$bind(this._$element, 'transitionend', _onanimationend);
Events.$bind(this._$element, 'animationend', _onanimationend);
Events.$bind(this._$element, 'click', (ev) => {
this._focus();
}, true);
Events.$bind(this._$top, 'mouseup', (ev) => {
const t = ev.target;
if ( t ) {
if ( t.tagName.match(/^APPLICATION\-WINDOW\-BUTTON/) ) {
this._onWindowButtonClick(ev, t, t.getAttribute('data-action'));
} else if ( t.tagName === 'APPLICATION-WINDOW-ICON' ) {
this._onWindowIconClick(ev);
}
}
});
Events.$bind(this._$top, 'dblclick', () => {
this._maximize();
});
((properties, main, compability) => {
if ( properties.allow_drop && compability.dnd ) {
const border = document.createElement('div');
border.className = 'WindowDropRect';
GUI.createDroppable(main, {
onOver: (ev, el, args) => {
main.setAttribute('data-dnd-state', 'true');
},
onLeave: () => {
main.setAttribute('data-dnd-state', 'false');
},
onDrop: () => {
main.setAttribute('data-dnd-state', 'false');
},
onItemDropped: (ev, el, item, args) => {
main.setAttribute('data-dnd-state', 'false');
return this._onDndEvent(ev, 'itemDrop', item, args, el);
},
onFilesDropped: (ev, el, files, args) => {
main.setAttribute('data-dnd-state', 'false');
return this._onDndEvent(ev, 'filesDrop', files, args, el);
}
});
}
})(this._properties, this._$element, Compability.getCompability());
// Append to DOM
windowTitle.appendChild(document.createTextNode(this._title));
this._$top.appendChild(this._$winicon);
this._$top.appendChild(windowTitle);
this._$top.appendChild(DOM.$create('application-window-button-minimize', {
className: 'application-window-button-entry',
data: {
action: 'minimize'
},
aria: {
role: 'button',
label: 'Minimize Window'
}
}));
this._$top.appendChild(DOM.$create('application-window-button-maximize', {
className: 'application-window-button-entry',
data: {
action: 'maximize'
},
aria: {
role: 'button',
label: 'Maximize Window'
}
}));
this._$top.appendChild(DOM.$create('application-window-button-close', {
className: 'application-window-button-entry',
data: {
action: 'close'
},
aria: {
role: 'button',
label: 'Close Window'
}
}));
this._$loading.appendChild(document.createElement('application-window-loading-indicator'));
this._$element.appendChild(this._$top);
this._$element.appendChild(this._$root);
this._$element.appendChild(this._$resize);
this._$element.appendChild(this._$disabled);
this._$element.appendChild(this._$loading);
document.body.appendChild(this._$element);
// Final stuff
this._onChange('create');
this._toggleLoading(false);
this._toggleDisabled(false);
this._setIcon(Theme.getIcon(this._icon));
this._updateMarkup();
if ( this._sound ) {
Theme.playSound(this._sound, this._soundVolume);
}
this._initialized = true;
this._emit('init', [this._$root]);
return this._$root;
}
/**
* When window is rendered and inited
*/
_inited() {
if ( this._loaded ) {
return;
}
this._loaded = true;
this._onResize();
if ( !this._restored ) {
if ( this._state.maximized ) {
this._maximize(true);
} else if ( this._state.minimized ) {
this._minimize(true);
} else {
if ( this._opts.auto_size ) {
let maxWidth = 0;
let maxHeight = 0;
const traverseTree = (el) => {
el.children.forEach((sel) => {
maxWidth = Math.max(maxWidth, sel.offsetWidth);
maxHeight = Math.max(maxHeight, sel.offsetHeight);
if ( sel.children.length ) {
traverseTree(sel);
}
});
};
traverseTree(this._$root);
this._resize(maxWidth, maxHeight, true);
}
}
}
let inittimeout = setTimeout(() => {
this._emit('inited', []);
inittimeout = clearTimeout(inittimeout);
}, 10);
if ( this._app ) {
this._app._emit('initedWindow', [this]);
}
console.debug('Window::_inited()', this._name);
}
/**
* Destroy the Window
*
* @param {Boolean} shutdown If the action came from a shutdown procedure
*
* @return Boolean
*/
destroy(shutdown) {
if ( this._destroyed ) {
return false;
}
this._emit('destroy');
this._destroyed = true;
const wm = WindowManager.instance;
console.group('Window::destroy()');
// Nulls out stuff
const _removeDOM = () => {
this._setWarning(null);
this._$root = null;
this._$top = null;
this._$winicon = null;
this._$loading = null;
this._$disabled = null;
this._$resize = null;
this._$warning = null;
this._$element = DOM.$remove(this._$element);
};
// Removed DOM elements and their referring objects (GUI Elements etc)
const _destroyDOM = () => {
if ( this._$element ) {
// Make sure to remove any remaining event listeners
this._$element.querySelectorAll('*').forEach((iter) => {
if ( iter ) {
Events.$unbind(iter);
}
});
}
if ( this._parent ) {
this._parent._removeChild(this);
}
this._parent = null;
this._removeChildren();
};
// Destroys the window
const _destroyWin = () => {
if ( wm ) {
wm.removeWindow(this);
}
const curWin = wm ? wm.getCurrentWindow() : null;
if ( curWin && curWin._wid === this._wid ) {
wm.setCurrentWindow(null);
}
const lastWin = wm ? wm.getLastWindow() : null;
if ( lastWin && lastWin._wid === this._wid ) {
wm.setLastWindow(null);
}
};
const _animateClose = (fn) => {
if ( !running() ) {
fn();
} else {
if ( this._$element ) {
const anim = wm ? wm.getSetting('animations') : false;
if ( anim ) {
this._$element.setAttribute('data-closing', 'true');
this._animationCallback = fn;
// This prevents windows from sticking when shutting down.
// In some cases this would happen when you remove the stylesheet
// with animation properties attached.
let animatetimeout = setTimeout(() => {
if ( this._animationCallback ) {
this._animationCallback();
}
animatetimeout = clearTimeout(animatetimeout);
}, 1000);
} else {
this._$element.style.display = 'none';
fn();
}
}
}
};
this._onChange('close');
_animateClose(() => {
_removeDOM();
});
_destroyDOM();
_destroyWin();
// App messages
if ( this._app ) {
this._app._onMessage('destroyWindow', this, {});
}
if ( this._evHandler ) {
this._evHandler.destroy();
}
this._app = null;
this._evHandler = null;
this._args = {};
this._queryTimer = clearTimeout(this._queryTimer);
this._scheme = this._scheme ? this._scheme.destroy() : null;
console.groupEnd();
return true;
}
//
// GUI And Event Hooks
//
/**
* Finds a GUI Element by ID from Scheme.
*
* @param {String} id Element ID (data-id)
* @param {Node} [root] Root Node
*
* @return {GUIElement}
*/
_find(id, root) {
const q = '[data-id="' + id + '"]';
return this._findByQuery(q, root);
}
/**
* Renders a scheme into the window
*
* By default uses the internally assigned scheme file from preload (if any)
*
* @param {String} id Scheme fragment ID
* @param {String|GUIScheme} scheme Scheme or HTML
* @param {Node} [root] Root element (defaults to internal Node)
* @param {Object} [args] Arguments to pass to parser
* @return {GUIScheme}
*/
_render(id, scheme, root, args) {
if ( scheme ) {
root = root || this._getRoot();