From c0f1ece220587ccc87f6aa9e9b01ba6a326e32be Mon Sep 17 00:00:00 2001
From: Niels Thole <niels.thole@gmail.com>
Date: Wed, 2 May 2018 11:59:01 +0200
Subject: [PATCH 1/2] Add registerHoverProvider

---
 monaco-editor-iframe.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/monaco-editor-iframe.js b/monaco-editor-iframe.js
index a4d46cc..56d88c1 100644
--- a/monaco-editor-iframe.js
+++ b/monaco-editor-iframe.js
@@ -42,6 +42,16 @@
             event: 'registerSignatureHelpProvider',
             args: [languageId, provider]
           });
+        },
+        registerHoverProvider: (languageId, provider) => {
+          if (provider.provideHover) {
+            provider.provideHover = provider.provideHover.toString();
+          }
+          this.postMessage({
+            path: ['monaco', 'languages'],
+            event: 'registerHoverProvider',
+            args: [languageId, provider]
+          });
         }
       };
     }
@@ -331,6 +341,11 @@
                   args[1].provideSignatureHelp = eval(args[1].provideSignatureHelp);
                 }
               }
+              if (event === 'registerHoverProvider') {
+                if (args[1].provideHover) {
+                  args[1].provideHover = eval(args[1].provideHover);
+                }
+              }
               try {
                 let cmd = proxy;
                 path.forEach(k => { cmd = cmd[k]; });

From 57737bae49700e9fad88c097e1819abd1daed809 Mon Sep 17 00:00:00 2001
From: Niels Thole <niels.thole@gmail.com>
Date: Wed, 2 May 2018 12:07:13 +0200
Subject: [PATCH 2/2] New function clearHoverProviders to remove all existing
 hover providers

---
 monaco-editor-iframe.js | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/monaco-editor-iframe.js b/monaco-editor-iframe.js
index 56d88c1..c6adfdc 100644
--- a/monaco-editor-iframe.js
+++ b/monaco-editor-iframe.js
@@ -52,6 +52,13 @@
             event: 'registerHoverProvider',
             args: [languageId, provider]
           });
+        },
+        clearHoverProviders: () => {
+          this.postMessage({
+            path: ['monaco', 'languages'],
+            event: 'clearHoverProviders',
+            args: []
+          });
         }
       };
     }
@@ -233,6 +240,7 @@
             var editorReference = "${opts.editorReference}"
             var proxy = {};
             var queue = [];
+            var hoverProviders = [];
             
             require.config({
               paths: {vs: "${libPath}"}
@@ -298,6 +306,12 @@
                 proxy.editor.getModel().setValue(args[0]);
                 return;
               }
+              if (event === 'clearHoverProviders') {
+                for (let hoverProvider of hoverProviders) {
+                  hoverProvider.dispose();
+                }
+                return;
+              }
               if(event === 'highlightLine') {
                 proxy.editor.decorationList = [];
                 var debugInfo = args[0];
@@ -349,7 +363,10 @@
               try {
                 let cmd = proxy;
                 path.forEach(k => { cmd = cmd[k]; });
-                cmd[event](...args);
+                let disposable = cmd[event](...args);
+                if (event === 'registerHoverProvider') {
+                  hoverProviders.push(disposable);
+                }
               } catch (err) {
                 console.error(err);
               }