web-apps/apps/common/main/lib/component/FocusManager.js
2020-09-26 00:43:43 +03:00

131 lines
4.8 KiB
JavaScript

/*
*
* (c) Copyright Ascensio System SIA 2010-2020
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation. In accordance with
* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
* that Ascensio System SIA expressly excludes the warranty of non-infringement
* of any third-party rights.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
* street, Riga, Latvia, EU, LV-1050.
*
* The interactive user interfaces in modified source and object code versions
* of the Program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU AGPL version 3.
*
* Pursuant to Section 7(b) of the License you must retain the original Product
* logo when distributing the program. Pursuant to Section 7(e) we decline to
* grant you any rights under trademark law for use of our trademarks.
*
* All the Product's GUI elements, including illustrations and icon sets, as
* well as technical writing content are licensed under the terms of the
* Creative Commons Attribution-ShareAlike 4.0 International. See the License
* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
*
*/
/**
* FocusManager.js
*
* Created by Julia Radzhabova on 24.09.2020
* Copyright (c) 2020 Ascensio System SIA. All rights reserved.
*
*/
if (Common === undefined)
var Common = {};
if (Common.UI === undefined) {
Common.UI = {};
}
Common.UI.FocusManager = function (tabindex, parent) {
var register = function(fields, options, tabindex) {
var arr = [],
selector,
el;
if (typeof options==='string') {
selector = options;
} else {
el = options;
}
if (!fields.forEach) {
fields = [fields];
if (el)
el = [el];
}
fields.forEach(function(cmp, index) {
var elem = selector ? (cmp.$el || $(cmp.el)).find(selector).addBack().filter(selector) : (el && el[index] ? el[index] : cmp);
elem && elem.attr && elem.attr('tabindex', tabindex.toString());
arr.push({
cmp: cmp,
el: elem,
selector: selector
});
});
return arr;
};
return {
tabindex: tabindex || 0,
parent: parent,
fields: [],
add: function(fields, options) { // options may be selector or component.el
this.fields = this.fields.concat(register(fields, options, this.tabindex));
!this.trapFirst && this.addTraps();
},
insert: function(field, index, options) {
this.fields.splice(index, 0, register(field, options, this.tabindex));
},
remove: function(index) {
this.fields.splice(index, 1);
},
addTraps: function() {
if (!this.parent || !this.parent.$window) return;
var me = this;
this.trapFirst = $('<span aria-hidden="true" tabindex="' + this.tabindex + '"></span>');
this.trapFirst.on('focus', function() {
for (var i=0; i<me.fields.length; i++) {
var field = me.fields[i];
if ((field.cmp.isVisible ? field.cmp.isVisible() : field.cmp.is(':visible')) && !(field.cmp.isDisabled && field.cmp.isDisabled())) {
var el = (field.selector) ? (field.cmp.$el || $(field.cmp.el)).find(field.selector).addBack().filter(field.selector) : field.el;
el.focus();
break;
}
}
});
this.parent.$window.prepend(this.trapFirst);
this.trapLast = $('<span aria-hidden="true" tabindex="' + (this.tabindex+1) + '"></span>');
this.trapLast.on('focus', function() {
for (var i=me.fields.length-1; i>=0; i--) {
var field = me.fields[i];
if ((field.cmp.isVisible ? field.cmp.isVisible() : field.cmp.is(':visible')) && !(field.cmp.isDisabled && field.cmp.isDisabled())) {
var el = (field.selector) ? (field.cmp.$el || $(field.cmp.el)).find(field.selector).addBack().filter(field.selector) : field.el;
el.focus();
break;
}
}
});
this.parent.$window.append(this.trapLast);
},
setTabIndex: function (tabindex) {
this.tabindex = tabindex;
}
}
};