Improved UX for inline code escaping

diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js
index 7df1da8fd319adecb0a11df291bce621f62f102b..fd514ffce86cf5dbf865639309c2a2be3200d658 100644 (file)
--- a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabKeydown.js
@@ -5,6 +5,62 @@ $.Redactor.prototype.WoltLabKeydown = function() {
        
        return {
                init: function () {
+                       var mpInit = this.keydown.init;
+                       this.keydown.init = (function (e) {
+                               var returnValue = mpInit.call(this, e);
+                               
+                               if (returnValue !== false && !e.originalEvent.defaultPrevented) {
+                                       e = e.originalEvent;
+                                       
+                                       // 39 == right
+                                       if (e.which === 39 && !e.ctrlKey && !e.shiftKey && !e.metaKey && !e.altKey) {
+                                               var selection = window.getSelection();
+                                               if (!selection.isCollapsed) {
+                                                       return;
+                                               }
+                                               
+                                               var current = selection.anchorNode;
+                                               if (current.nodeType !== Node.TEXT_NODE || selection.getRangeAt(0).startOffset !== current.textContent.length) {
+                                                       return;
+                                               }
+                                               
+                                               var parent = current.parentNode;
+                                               if (parent.nodeName !== 'KBD') {
+                                                       return;
+                                               }
+                                               
+                                               // check if caret is at the very end
+                                               
+                                               // check if there is absolutely nothing afterwards
+                                               var isAtTheVeryEnd = true;
+                                               var node = parent;
+                                               while (node && node !== this.core.editor()[0]) {
+                                                       if (node.nextSibling !== null) {
+                                                               // strip empty text nodes
+                                                               while (node.nextSibling && node.nextSibling.nodeType === Node.TEXT_NODE && node.nextSibling.textContent.length === 0) {
+                                                                       node.parentNode.removeChild(node.nextSibling);
+                                                               }
+                                                               
+                                                               if (node.nextSibling && node.nextSibling.nodeName !== 'BR' || node.nextSibling.nextSibling !== null) {
+                                                                       isAtTheVeryEnd = false;
+                                                                       break;
+                                                               }
+                                                       }
+                                                       
+                                                       node = node.parentNode;
+                                               }
+                                               
+                                               if (isAtTheVeryEnd) {
+                                                       parent.parentNode.insertBefore(document.createTextNode('\u200B'), parent.nextSibling);
+                                               }
+                                       }
+                               }
+                       }).bind(this);
+                       
+                       // rebind keydown event
+                       this.core.editor().off('keydown.redactor');
+                       this.core.editor().on('keydown.redactor', this.keydown.init.bind(this));
+                       
                        this.keydown.onArrowDown = (function() {
                                var tags = this.WoltLabKeydown._getBlocks();