Fix(VIM-3640): Enable IdeaVim only in the editor context component

As the GitHub Copilot is placed right in the editor component, the IdeaVim's actions are also collected. Action promoter promotes the IdeaVim's action and, since the data context has the editor, executes a Vim's actions like backspace.
Now we make sure that IdeaVim works only in the actual editor.
Since this change may affect some places where the IdeaVim used to work, but won't work now (this will be a surprise), a registry key is introduced to help the users that face this problem.

src/main/java/com/maddyhome/idea/vim/action/VimShortcutKeyAction.kt

@@ -21,6 +21,7 @@ import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.progress.ProcessCanceledException
 import com.intellij.openapi.project.DumbAware
 import com.intellij.openapi.util.Key
+import com.intellij.openapi.util.registry.Registry
 import com.intellij.ui.KeyStrokeAdapter
 import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimPlugin
@@ -35,6 +36,7 @@ import com.maddyhome.idea.vim.helper.HandlerInjector
 import com.maddyhome.idea.vim.helper.inInsertMode
 import com.maddyhome.idea.vim.helper.inNormalMode
 import com.maddyhome.idea.vim.helper.isIdeaVimDisabledHere
+import com.maddyhome.idea.vim.helper.isNotEditorContextComponent
 import com.maddyhome.idea.vim.helper.isPrimaryEditor
 import com.maddyhome.idea.vim.helper.isTemplateActive
 import com.maddyhome.idea.vim.helper.updateCaretsVisualAttributes
@@ -127,6 +129,13 @@ class VimShortcutKeyAction : AnAction(), DumbAware/*, LightEditCompatible*/ {
           )
         }
       }
+      if (e.dataContext.isNotEditorContextComponent && Registry.`is`("ideavim.only.in.editor.component")) {
+        // Note: Currently, IdeaVim works ONLY in the editor component. However, the presence of the
+        //   PlatformDataKeys.EDITOR in the data context does not mean that the current focused component is editor.
+        // Note2: The registry key is needed for quick disabling in case something gets broken. It can be removed after
+        //   some time if no issues are found.
+        return ActionEnableStatus.no("Context component is not editor", LogLevel.INFO)
+      }
       if (editor.isIdeaVimDisabledHere) {
         return ActionEnableStatus.no("IdeaVim is disabled in this place", LogLevel.INFO)
       }

src/main/java/com/maddyhome/idea/vim/helper/EditorHelper.kt

@@ -11,9 +11,12 @@
 package com.maddyhome.idea.vim.helper
 
 import com.intellij.codeWithMe.ClientId
+import com.intellij.openapi.actionSystem.DataContext
+import com.intellij.openapi.actionSystem.PlatformDataKeys
 import com.intellij.openapi.editor.Caret
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.ex.util.EditorUtil
+import com.intellij.openapi.editor.impl.EditorComponentImpl
 import com.intellij.openapi.fileEditor.ex.FileEditorManagerEx
 import com.intellij.util.ui.table.JBTableRowEditor
 import com.maddyhome.idea.vim.api.StringListOptionValue
@@ -98,3 +101,9 @@ internal val Caret.vimLine: Int
  */
 internal val Editor.vimLine: Int
   get() = this.caretModel.currentCaret.vimLine
+
+internal val DataContext.isNotEditorContextComponent: Boolean
+  get() {
+    val contextComponent = this.getData(PlatformDataKeys.CONTEXT_COMPONENT) ?: return true
+    return contextComponent !is EditorComponentImpl
+  }

src/main/resources/META-INF/plugin.xml

@@ -131,6 +131,8 @@
                          order="first"/>
     <editorFactoryDocumentListener
         implementation="com.maddyhome.idea.vim.listener.VimListenerManager$VimDocumentListener"/>
+    <registryKey defaultValue="true" description="Enable IdeaVim only in editor component and project tree"
+                 key="ideavim.only.in.editor.component"/>
   </extensions>
 
   <xi:include href="/META-INF/includes/ApplicationServices.xml" xpointer="xpointer(/idea-plugin/*)"/>