(function () {

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var tabfocus = (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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global.add('tabfocus', function (editor) {

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Keyboard.setup(editor);

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});

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function Plugin () {

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}

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return Plugin;

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}(window));

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})();

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