From cd048c01547c19b90ff98afc174f618e1e1ebc44 Mon Sep 17 00:00:00 2001
From: Andrew Ozz <azaozz@git.wordpress.org>
Date: Tue, 19 Aug 2014 03:26:14 +0000
Subject: [PATCH] TinyMCE wpView: ignore more keys when the caret is around a
 view. Part props avryl, fixes #29115.

git-svn-id: https://develop.svn.wordpress.org/trunk@29535 602fd350-edb4-49c9-b593-d223f7449a82
---
 .../js/tinymce/plugins/wpview/plugin.js          | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/wp-includes/js/tinymce/plugins/wpview/plugin.js b/src/wp-includes/js/tinymce/plugins/wpview/plugin.js
index da12d957d3..e0dbafacca 100644
--- a/src/wp-includes/js/tinymce/plugins/wpview/plugin.js
+++ b/src/wp-includes/js/tinymce/plugins/wpview/plugin.js
@@ -353,6 +353,14 @@ tinymce.PluginManager.add( 'wpview', function( editor ) {
 		}
 	});
 
+	// Excludes arrow keys, delete, backspace, enter, space bar.
+	function isSpecialKey( key ) {
+		return ( ( key <= 47 && key !== VK.SPACEBAR && key !== VK.ENTER && key !== VK.DELETE && key !== VK.BACKSPACE && ( key < 37 || key > 40 ) ) ||
+			key === 144 || key === 145 || // Num Lock, Scroll Lock
+			( key >= 91 && key <= 93 ) || // Windows keys
+			( key >= 112 && key <= 123 ) ); // F keys
+	}
+
 	// (De)select views when arrow keys are used to navigate the content of the editor.
 	editor.on( 'keydown', function( event ) {
 		var key = event.keyCode,
@@ -410,9 +418,10 @@ tinymce.PluginManager.add( 'wpview', function( editor ) {
 				} else {
 					setViewCursor( false, view );
 				}
+
 				event.preventDefault();
 			// Ignore keys that don't insert anything.
-			} else if ( ( key > 47 || VK.SPACEBAR || key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE ) && key !== 144 && key !== 145 ) {
+			} else if ( ! isSpecialKey( key ) ) {
 				removeView( selected );
 
 				if ( key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE ) {
@@ -472,6 +481,11 @@ tinymce.PluginManager.add( 'wpview', function( editor ) {
 				return;
 			}
 
+			if ( isSpecialKey( key ) ) {
+				// ignore
+				return;
+			}
+
 			if ( ( cursorAfter && key === VK.UP ) || ( cursorBefore && key === VK.BACKSPACE ) ) {
 				if ( view.previousSibling ) {
 					if ( getView( view.previousSibling ) ) {