/**
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* Copyright (c) Tiny Technologies, Inc. All rights reserved.
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* Licensed under the LGPL or a commercial license.
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* For LGPL see License.txt in the project root for license information.
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* For commercial licenses see https://www.tiny.cloud/
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*
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* Version: 5.2.0 (2020-02-13)
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*/
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(function (domGlobals) {
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'use strict';
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var global = tinymce.util.Tools.resolve('tinymce.PluginManager');
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var global$1 = tinymce.util.Tools.resolve('tinymce.dom.DOMUtils');
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var global$2 = tinymce.util.Tools.resolve('tinymce.EditorManager');
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var global$3 = tinymce.util.Tools.resolve('tinymce.Env');
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var global$4 = tinymce.util.Tools.resolve('tinymce.util.Delay');
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var global$5 = tinymce.util.Tools.resolve('tinymce.util.Tools');
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var global$6 = tinymce.util.Tools.resolve('tinymce.util.VK');
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var getTabFocusElements = function (editor) {
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return editor.getParam('tabfocus_elements', ':prev,:next');
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};
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var getTabFocus = function (editor) {
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return editor.getParam('tab_focus', getTabFocusElements(editor));
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};
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var Settings = { getTabFocus: getTabFocus };
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var DOM = global$1.DOM;
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var tabCancel = function (e) {
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if (e.keyCode === global$6.TAB && !e.ctrlKey && !e.altKey && !e.metaKey) {
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e.preventDefault();
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}
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};
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var setup = function (editor) {
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function tabHandler(e) {
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var x, el, v, i;
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if (e.keyCode !== global$6.TAB || e.ctrlKey || e.altKey || e.metaKey || e.isDefaultPrevented()) {
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return;
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}
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function find(direction) {
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el = DOM.select(':input:enabled,*[tabindex]:not(iframe)');
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function canSelectRecursive(e) {
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return e.nodeName === 'BODY' || e.type !== 'hidden' && e.style.display !== 'none' && e.style.visibility !== 'hidden' && canSelectRecursive(e.parentNode);
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}
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function canSelect(el) {
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return /INPUT|TEXTAREA|BUTTON/.test(el.tagName) && global$2.get(e.id) && el.tabIndex !== -1 && canSelectRecursive(el);
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}
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global$5.each(el, function (e, i) {
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if (e.id === editor.id) {
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x = i;
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return false;
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}
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});
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if (direction > 0) {
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for (i = x + 1; i < el.length; i++) {
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if (canSelect(el[i])) {
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return el[i];
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}
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}
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} else {
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for (i = x - 1; i >= 0; i--) {
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if (canSelect(el[i])) {
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return el[i];
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}
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}
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}
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return null;
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}
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v = global$5.explode(Settings.getTabFocus(editor));
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if (v.length === 1) {
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v[1] = v[0];
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v[0] = ':prev';
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}
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if (e.shiftKey) {
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if (v[0] === ':prev') {
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el = find(-1);
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} else {
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el = DOM.get(v[0]);
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}
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} else {
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if (v[1] === ':next') {
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el = find(1);
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} else {
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el = DOM.get(v[1]);
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}
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}
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if (el) {
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var focusEditor = global$2.get(el.id || el.name);
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if (el.id && focusEditor) {
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focusEditor.focus();
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} else {
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global$4.setTimeout(function () {
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if (!global$3.webkit) {
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domGlobals.window.focus();
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}
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el.focus();
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}, 10);
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}
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e.preventDefault();
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}
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}
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editor.on('init', function () {
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if (editor.inline) {
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DOM.setAttrib(editor.getBody(), 'tabIndex', null);
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}
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editor.on('keyup', tabCancel);
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if (global$3.gecko) {
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editor.on('keypress keydown', tabHandler);
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} else {
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editor.on('keydown', tabHandler);
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}
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});
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};
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var Keyboard = { setup: setup };
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function Plugin () {
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global.add('tabfocus', function (editor) {
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Keyboard.setup(editor);
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});
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}
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Plugin();
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}(window));
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