From af32a2f5ece250427aa753b236e48784ffa07aba Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 06 Jul 2012 06:57:03 -0400
Subject: [PATCH] Improve iframe form buttons display: fix iframe heights and make footer buttons float if scrolling is active

---
 program/js/tiny_mce/plugins/tabfocus/editor_plugin_src.js |   70 ++++++++++++++++++++---------------
 1 files changed, 40 insertions(+), 30 deletions(-)

diff --git a/program/js/tiny_mce/plugins/tabfocus/editor_plugin_src.js b/program/js/tiny_mce/plugins/tabfocus/editor_plugin_src.js
index c2be2f4..f9df7de 100644
--- a/program/js/tiny_mce/plugins/tabfocus/editor_plugin_src.js
+++ b/program/js/tiny_mce/plugins/tabfocus/editor_plugin_src.js
@@ -16,38 +16,49 @@
 			function tabCancel(ed, e) {
 				if (e.keyCode === 9)
 					return Event.cancel(e);
-			};
+			}
 
 			function tabHandler(ed, e) {
 				var x, i, f, el, v;
 
 				function find(d) {
-					f = DOM.getParent(ed.id, 'form');
-					el = f.elements;
+					el = DOM.select(':input:enabled,*[tabindex]:not(iframe)');
 
-					if (f) {
-						each(el, function(e, i) {
-							if (e.id == ed.id) {
-								x = i;
-								return false;
-							}
-						});
+					function canSelectRecursive(e) {
+						return e.nodeName==="BODY" || (e.type != 'hidden' &&
+							!(e.style.display == "none") &&
+							!(e.style.visibility == "hidden") && canSelectRecursive(e.parentNode));
+					}
+					function canSelectInOldIe(el) {
+						return el.attributes["tabIndex"].specified || el.nodeName == "INPUT" || el.nodeName == "TEXTAREA";
+					}
+					function isOldIe() {
+						return tinymce.isIE6 || tinymce.isIE7;
+					}
+					function canSelect(el) {
+						return ((!isOldIe() || canSelectInOldIe(el))) && el.getAttribute("tabindex") != '-1' && canSelectRecursive(el);
+					}
 
-						if (d > 0) {
-							for (i = x + 1; i < el.length; i++) {
-								if (el[i].type != 'hidden')
-									return el[i];
-							}
-						} else {
-							for (i = x - 1; i >= 0; i--) {
-								if (el[i].type != 'hidden')
-									return el[i];
-							}
+					each(el, function(e, i) {
+						if (e.id == ed.id) {
+							x = i;
+							return false;
+						}
+					});
+					if (d > 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;
-				};
+				}
 
 				if (e.keyCode === 9) {
 					v = explode(ed.getParam('tab_focus', ed.getParam('tabfocus_elements', ':prev,:next')));
@@ -71,15 +82,19 @@
 					}
 
 					if (el) {
-						if (ed = tinymce.get(el.id || el.name))
+						if (el.id && (ed = tinymce.get(el.id || el.name)))
 							ed.focus();
 						else
-							window.setTimeout(function() {window.focus();el.focus();}, 10);
+							window.setTimeout(function() {
+								if (!tinymce.isWebKit)
+									window.focus();
+								el.focus();
+							}, 10);
 
 						return Event.cancel(e);
 					}
 				}
-			};
+			}
 
 			ed.onKeyUp.add(tabCancel);
 
@@ -89,11 +104,6 @@
 			} else
 				ed.onKeyDown.add(tabHandler);
 
-			ed.onInit.add(function() {
-				each(DOM.select('a:first,a:last', ed.getContainer()), function(n) {
-					Event.add(n, 'focus', function() {ed.focus();});
-				});
-			});
 		},
 
 		getInfo : function() {
@@ -109,4 +119,4 @@
 
 	// Register plugin
 	tinymce.PluginManager.add('tabfocus', tinymce.plugins.TabFocusPlugin);
-})();
\ No newline at end of file
+})();

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