/**
* plugin.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/*global tinymce:true */
tinymce.PluginManager.add('tabfocus', function (editor) {
var DOM = tinymce.DOM, each = tinymce.each, explode = tinymce.explode;
function tabCancel(e) {
if (e.keyCode === 9 && !e.ctrlKey && !e.altKey && !e.metaKey) {
e.preventDefault();
}
}
function tabHandler(e) {
var x, el, v, i;
if (e.keyCode !== 9 || e.ctrlKey || e.altKey || e.metaKey || e.isDefaultPrevented()) {
return;
}
function find(direction) {
el = DOM.select(':input:enabled,*[tabindex]:not(iframe)');
function canSelectRecursive(e) {
return e.nodeName === "BODY" || (e.type != 'hidden' &&
e.style.display != "none" &&
e.style.visibility != "hidden" && canSelectRecursive(e.parentNode));
}
function canSelect(el) {
return /INPUT|TEXTAREA|BUTTON/.test(el.tagName) && tinymce.get(e.id) && el.tabIndex != -1 && canSelectRecursive(el);
}
each(el, function (e, i) {
if (e.id == editor.id) {
x = i;
return false;
}
});
if (direction > 0) {
for (i = x + 1; i < el.length; i++) {
if (canSelect(el[i])) {
return el[i];
}
}
} else {
for (i = x - 1; i >= 0; i--) {
if (canSelect(el[i])) {
return el[i];
}
}
}
return null;
}
v = explode(editor.getParam('tab_focus', editor.getParam('tabfocus_elements', ':prev,:next')));
if (v.length == 1) {
v[1] = v[0];
v[0] = ':prev';
}
// Find element to focus
if (e.shiftKey) {
if (v[0] == ':prev') {
el = find(-1);
} else {
el = DOM.get(v[0]);
}
} else {
if (v[1] == ':next') {
el = find(1);
} else {
el = DOM.get(v[1]);
}
}
if (el) {
var focusEditor = tinymce.get(el.id || el.name);
if (el.id && focusEditor) {
focusEditor.focus();
} else {
tinymce.util.Delay.setTimeout(function () {
if (!tinymce.Env.webkit) {
window.focus();
}
el.focus();
}, 10);
}
e.preventDefault();
}
}
editor.on('init', function () {
if (editor.inline) {
// Remove default tabIndex in inline mode
tinymce.DOM.setAttrib(editor.getBody(), 'tabIndex', null);
}
editor.on('keyup', tabCancel);
if (tinymce.Env.gecko) {
editor.on('keypress keydown', tabHandler);
} else {
editor.on('keydown', tabHandler);
}
});
});
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