IJPL-172124 Allow to listen for command search popup events

IJ-CR-148020

(cherry picked from commit d1a449823a5c68a5ca82f16c12ccb5d938e70e79)

GitOrigin-RevId: 00b2cb07cb5e385f841ca6410a7893c911a03a4d

plugins/terminal/src/org/jetbrains/plugins/terminal/block/history/CommandSearchListener.kt

@@ -0,0 +1,18 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package org.jetbrains.plugins.terminal.block.history
+
+import com.intellij.util.messages.Topic
+import org.jetbrains.annotations.ApiStatus
+import org.jetbrains.plugins.terminal.block.prompt.TerminalPromptModel
+
+@ApiStatus.Internal
+interface CommandSearchListener {
+  fun commandSearchShown(promptModel: TerminalPromptModel) {}
+
+  fun commandSearchAborted(promptModel: TerminalPromptModel) {}
+
+  companion object {
+    @Topic.ProjectLevel
+    val TOPIC: Topic<CommandSearchListener> = Topic(CommandSearchListener::class.java, Topic.BroadcastDirection.NONE)
+  }
+}

plugins/terminal/src/org/jetbrains/plugins/terminal/block/history/CommandSearchPresenter.kt

@@ -2,6 +2,8 @@
 package org.jetbrains.plugins.terminal.block.history
 
 import com.intellij.codeInsight.lookup.Lookup
+import com.intellij.codeInsight.lookup.LookupEvent
+import com.intellij.codeInsight.lookup.LookupListener
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.Key
@@ -20,8 +22,16 @@ internal class CommandSearchPresenter(
     val lookup = CommandHistoryUtil.createLookup(project, editor, command, history.asReversed())
     lookup.putUserData(IS_COMMAND_SEARCH_LOOKUP_KEY, true)
 
+    lookup.addLookupListener(object : LookupListener {
+      override fun lookupCanceled(event: LookupEvent) {
+        project.messageBus.syncPublisher(CommandSearchListener.TOPIC).commandSearchAborted(promptModel)
+      }
+    })
+
     if (lookup.showLookup()) {
       lookup.ensureSelectionVisible(false)
+
+      project.messageBus.syncPublisher(CommandSearchListener.TOPIC).commandSearchShown(promptModel)
     }
   }