disable "discard changes" in context menu of FE

src/app/files/file-explorer.js

@@ -209,15 +209,16 @@ function fileExplorer (localRegistry, files, menuItems) {
     const provider = self._deps.fileManager.fileProviderOf(key)
     actions['Create File'] = () => self.createNewFile(key)
     actions['Create Folder'] = () => self.createNewFolder(key)
+    // @todo(#2386) not fully implemented. Readd later when fixed
     if (provider.isExternalFolder(key)) {
-      actions['Discard changes'] = () => {
+      /* actions['Discard changes'] = () => {
         modalDialogCustom.confirm(
           'Discard changes',
           'Are you sure you want to discard all your changes?',
           () => { self.files.discardChanges(key) },
           () => {}
         )
-      }
+      } */
     } else {
       const folderPath = extractExternalFolder(key)
       actions['Rename'] = () => {

src/app/files/fileManager.js

@@ -59,7 +59,8 @@ class FileManager extends Plugin {
   }
 
   fileChangedEvent (path) {
-    this.syncEditor(path)
+    // @todo(#2386) use only for discard changes function.
+    // this.syncEditor(path)
   }
 
   fileRenamedEvent (oldName, newName, isFolder) {

src/app/tabs/compileTab/compilerContainer.js

@@ -42,6 +42,9 @@ class CompilerContainer {
   }
 
   deactivate () {
+    // deactivate editor listeners
+    this.editor.event.unregister('contentChanged')
+    this.editor.event.unregister('sessionSwitched')
   }
 
   activate () {
@@ -50,8 +53,10 @@ class CompilerContainer {
   }
 
   listenToEvents () {
-    this.editor.event.register('contentChanged', this.scheduleCompilation.bind(this))
-    this.editor.event.register('sessionSwitched', this.scheduleCompilation.bind(this))
+    this.editor.event.register('sessionSwitched', () => {
+      if (!this._view.compileIcon) return
+      this.scheduleCompilation()
+    })
 
     this.compileTabLogic.event.on('startingCompilation', () => {
       if (!this._view.compileIcon) return
@@ -73,6 +78,7 @@ class CompilerContainer {
 
     this.editor.event.register('contentChanged', () => {
       if (!this._view.compileIcon) return
+      this.scheduleCompilation.bind(this)
       this._view.compileIcon.classList.add(`${css.bouncingIcon}`) // @TODO: compileView tab
     })
 
@@ -131,6 +137,7 @@ class CompilerContainer {
 
   // Load solc compiler version according to pragma in contract file
   _setCompilerVersionFromPragma (filename) {
+    if (!this.data.allversions) return
     this.compileTabLogic.fileManager.getFile(filename).then(data => {
       const pragmaArr = data.match(/(pragma solidity (.+?);)/g)
       if (pragmaArr && pragmaArr.length === 1) {

src/app/ui/contextMenu.js

@@ -40,12 +40,12 @@ module.exports = (event, items) => {
     window.removeEventListener('click', hide)
   }
 
-  var menu = Object.keys(items).map((item, index) => {
-    var current = yo`<li id="menuitem${item.toLowerCase()}" class=${css.liitem}>${item}</li>`
+  const menu = Object.keys(items).map((item, index) => {
+    const current = yo`<li id="menuitem${item.toLowerCase()}" class=${css.liitem}>${item}</li>`
     current.onclick = () => { hide(null, true); items[item]() }
     return current
   })
-  var container = yo`<div class="p-1 ${css.container} bg-light"><ul id='menuitems'>${menu}</ul></div>`
+  const container = yo`<div class="p-1 ${css.container} bg-light shadow border"><ul id='menuitems'>${menu}</ul></div>`
   container.style.left = event.pageX + 'px'
   container.style.top = event.pageY + 'px'
   container.style.display = 'block'