From 7fe8cf4dd216a9629fa3cbdc5113e825b141cd8e Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Mon, 14 Feb 2022 17:14:00 +0100
Subject: [PATCH] Work-around for the inconsistent selection handling in iOS 15

See https://www.woltlab.com/community/thread/294136-ios-text-markieren-link-einf%C3%BCgen-geht-nicht/
---
 .../3rdParty/redactor2/plugins/WoltLabLink.js | 21 +++++++++++++++++--
 .../files/js/3rdParty/redactor2/redactor.js   |  8 +++++--
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabLink.js b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabLink.js
index dc233ff5d3..309bf39f33 100644
--- a/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabLink.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/plugins/WoltLabLink.js
@@ -66,12 +66,21 @@ $.Redactor.prototype.WoltLabLink = function() {
 			{
 				e.preventDefault();
 			}
+
+			let hasRestoredSelection = false;
+			if (this.detect.isMobile() && !this.core.editor()[0].contains(document.activeElement)) {
+				this.selection.restore();
+
+				hasRestoredSelection = true;
+			}
 			
 			// used to determine if selection needs to be restored later as
 			// Safari sometimes discards the selection when setting markers
 			var hasSelectedText = this.selection.is();
 			
-			this.selection.save();
+			if (!hasRestoredSelection) {
+				this.selection.save();
+			}
 			
 			// close tooltip
 			this.observe.closeAllTooltip();
@@ -79,6 +88,14 @@ $.Redactor.prototype.WoltLabLink = function() {
 			// is link
 			//var $el = this.link.is();
 			var $el = $link || false;
+
+			if (hasRestoredSelection) {
+				if ($el === false) {
+					$el = this.link.is();
+				}
+
+				document.activeElement.blur();
+			}
 			
 			// build link
 			if (hasSelectedText) this.selection.restore();
@@ -101,7 +118,7 @@ $.Redactor.prototype.WoltLabLink = function() {
 					this.selection.restore();
 					
 					// insert or update
-					this.link.insert(link, true);
+					this.link.insert(link, true, $el);
 					
 					return true;
 				}).bind(this)
diff --git a/wcfsetup/install/files/js/3rdParty/redactor2/redactor.js b/wcfsetup/install/files/js/3rdParty/redactor2/redactor.js
index 7d9e69e528..e51bf08f30 100644
--- a/wcfsetup/install/files/js/3rdParty/redactor2/redactor.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor2/redactor.js
@@ -3564,6 +3564,10 @@
 					
 					require(['Ui/SimpleDropdown'], (function(UiSimpleDropdown) {
 						var dropdownId = this.dropdown.button[0].id;
+
+						if (this.detect.isMobile() && !UiSimpleDropdown.isOpen(dropdownId)) {
+							this.selection.save();
+						}
 						
 						UiSimpleDropdown.toggleDropdown(dropdownId);
 						if (UiSimpleDropdown.isOpen(dropdownId)) {
@@ -6677,8 +6681,8 @@
 					this.core.callback('deletedLink', $links);
 					
 				},
-				insert: function (link, cleaned) {
-					var $el = this.link.is();
+				insert: function (link, cleaned, savedLink) {
+					var $el = savedLink || this.link.is();
 					
 					if (cleaned !== true) {
 						link = this.link.buildLinkFromObject($el, link);
-- 
2.20.1