From bc5161dac9202ec66059f5f8eb54558e90a6e5fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ale=C5=A1=20Smodi=C5=A1?= <aless@guru.si>
Date: Thu, 1 Oct 2015 14:15:38 +0200
Subject: Bugfix: rebuild any popovers after the editor's DOM changes.

---
 js/codeq/hint.js | 36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/js/codeq/hint.js b/js/codeq/hint.js
index a97c14b..fc2429a 100644
--- a/js/codeq/hint.js
+++ b/js/codeq/hint.js
@@ -10,9 +10,16 @@
     codeq.makeHinter = function (jqHints, jqEditor, editor, trNamespace, problemDef, commonDef) {
         var hintCounter = 0, // for generating unique class-names
             hintCleaners = [],
+            popoverHintCleaners = [], // we require separate cleaners for popups, because they are rebuilt when the editor's DOM changes
+            popoverCreators = [], // functions that rebuild popover handlers after the editor's DOM changes
             planIdx = 0,
             dictionary = [],
             jqHintsContainer = jqHints.parent(),
+            hintProblemDefs = problemDef.hint_type,
+            hintCommonDefs = commonDef.hint_type,
+            hintProblemTr = problemDef.hint,
+            hintCommonTr = commonDef.hint,
+            planDef = problemDef.plan,
 
             clearHints = function () {
                 var i;
@@ -20,6 +27,10 @@
                     hintCleaners[i]();
                 }
                 hintCleaners.length = 0;
+                for (i = popoverHintCleaners.length - 1; i >= 0; i--) {
+                    popoverHintCleaners[i]();
+                }
+                popoverHintCleaners.length = 0;
                 hintCounter = 0;
             },
 
@@ -240,7 +251,7 @@
                         mark = addMark(serverHint.start, serverHint.end), // add the mark
                         langs = codeq.availableLangs,
                         translations = {},
-                        lang, i, content, htmlPrefix;
+                        lang, i, content, htmlPrefix, instFunc;
 
                     // execute templates for all languages
                     for (i = langs.length - 1; i >= 0; i--) {
@@ -257,7 +268,7 @@
                     // construct the wrapper element for the translation mechanism
                     htmlPrefix = '<span ' + ta(translations) + '>';
                     // create the popover after all the DOM modifications have been made, otherwise only the last made popover can be triggered
-                    return function () {
+                    instFunc = function () {
                         var jqMark = jqEditor.find('.' + mark.className);
                         jqMark.popover({
                             'content': function () {
@@ -270,8 +281,10 @@
                             'container': 'body'
                         });
                         // remove the popup on next hint pack
-                        hintCleaners.push(function () { if (jqMark) { jqMark.popover('destroy'); jqMark = null; } });
+                        popoverHintCleaners.push(function () { if (jqMark) { jqMark.popover('destroy'); jqMark = null; } });
                     };
+                    popoverCreators.push(instFunc);
+                    return instFunc;
                 },
 
                 'dropdown': function (type, template, serverHint) {
@@ -305,15 +318,19 @@
 
                     hintCleaners.push(close);
                 }
+            },
+
+            /**
+             * When the editor updates its DOM, we have to re-register any popup hints.
+             */
+            onEditorUpdate = function () {
+                var i;
+                for (i = 0; i < popoverHintCleaners.length; i++) popoverHintCleaners[i]();
+                for (i = 0; i < popoverCreators.length; i++) popoverCreators[i]();
             };
 
         codeq.tr.registerDictionary(trNamespace, dictionary);
-
-        var hintProblemDefs = problemDef.hint_type,
-            hintCommonDefs = commonDef.hint_type,
-            hintProblemTr = problemDef.hint,
-            hintCommonTr = commonDef.hint,
-            planDef = problemDef.plan;
+        editor.on('update', onEditorUpdate);
 
         return {
             /**
@@ -387,6 +404,7 @@
             },
 
             'destroy': function () {
+                editor.off('update', onEditorUpdate);
                 clearHints();
                 codeq.tr.unregisterDictionary(trNamespace);
                 jqHints.empty();
-- 
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