/**
* The module initializes a ListView displaying the installed keyboards.
* Implementation details please refer to {@link KeyboardCore}.
*
* @module keyboard/installed_keyboards
*/
define(function(require) {
'use strict';
var ListView = require('modules/mvvm/list_view');
/**
* @alias module:keyboard/installed_keyboards
* @class KeyboardCore
* @requires module:modules/mvvm/list_view
* @param {KeyboardContext} context
The kyboard context providing installed keyboards.
* @param {Function} template
The template function used to render an installed
keyboard.
* @returns {KeyboardCore}
*/
function KeyboardCore(context, template) {
this._enabled = false;
this._listView = null;
this._keyboardContext = context;
this._keyboardTemplate = template;
}
KeyboardCore.prototype = {
/**
* The value indicates whether the module is responding. If it is false, the
* UI stops reflecting the updates from the keyboard context.
*
* @access public
* @memberOf KeyboardCore.prototype
* @type {Boolean}
*/
get enabled() {
return this._enabled;
},
set enabled(value) {
this._enabled = value;
if (this._listView) {
this._listView.enabled = this._enabled;
}
},
/**
* @access private
* @memberOf KeyboardCore.prototype
* @param {HTMLElement} listViewRoot
* @param {ObservableArray} keyboards
* @param {Function} keyboardTemplate
*/
_initAllKeyboardListView:
function k_initListView(listViewRoot, keyboards, keyboardTemplate) {
listViewRoot.hidden = (keyboards.length === 0);
this._listView = ListView(listViewRoot, keyboards, keyboardTemplate);
},
/**
* @access public
* @memberOf KeyboardCore.prototype
* @param {Array} elements
* Elements needed by this module.
* @param {HTMLElement} elements.listViewRoot
* The root element for the list view displaying the
* installed keyboards.
*/
init: function k_init(elements) {
var that = this;
this._keyboardContext.init(function() {
that._keyboardContext.keyboards(function(keyboards) {
that._initAllKeyboardListView(
elements.listViewRoot, keyboards, that._keyboardTemplate);
that.enabled = true;
});
});
}
};
return function ctor_keyboardCore(context, template) {
return new KeyboardCore(context, template);
};
});