fix(124): support stop chat

src/main/kotlin/cc/unitmesh/devti/gui/chat/AutoDevInput.kt

@@ -37,6 +37,7 @@ enum class AutoDevInputTrigger {
 interface AutoDevInputListener : EventListener {
     fun editorAdded(editor: EditorEx) {}
     fun onSubmit(component: AutoDevInputSection, trigger: AutoDevInputTrigger) {}
+    fun onStop(component: AutoDevInputSection) {}
 }
 
 class AutoDevInput(

src/main/kotlin/cc/unitmesh/devti/gui/chat/AutoDevInputSection.kt

@@ -32,15 +32,16 @@ import com.intellij.util.ui.JBEmptyBorder
 import com.intellij.util.ui.JBUI
 import com.intellij.util.ui.UIUtil
 import com.intellij.util.ui.components.BorderLayoutPanel
-import kotlinx.serialization.decodeFromString
 import kotlinx.serialization.json.Json
+import java.awt.CardLayout
 import java.awt.Color
 import java.awt.Dimension
 import java.awt.event.MouseAdapter
 import java.awt.event.MouseEvent
 import java.util.function.Supplier
 import javax.swing.Box
 import javax.swing.JComponent
+import javax.swing.JPanel
 import kotlin.math.max
 import kotlin.math.min
 
@@ -50,8 +51,11 @@ import kotlin.math.min
 class AutoDevInputSection(private val project: Project, val disposable: Disposable?) : BorderLayoutPanel() {
     private val input: AutoDevInput
     private val documentListener: DocumentListener
-    private val buttonPresentation: Presentation
-    private val button: ActionButton
+    private val sendButtonPresentation: Presentation
+    private val stopButtonPresentation: Presentation
+    private val sendButton: ActionButton
+    private val stopButton: ActionButton
+    private val buttonPanel = JPanel(CardLayout())
 
     private val defaultRag: CustomAgentConfig = CustomAgentConfig("<Select Custom Agent>", "Normal")
     private var customRag: ComboBox<CustomAgentConfig> = ComboBox(MutableCollectionComboBoxModel(listOf()))
@@ -70,18 +74,37 @@ class AutoDevInputSection(private val project: Project, val disposable: Disposab
         }
 
     init {
-        val presentation = Presentation(AutoDevBundle.message("chat.panel.send"))
-        presentation.setIcon(AutoDevIcons.Send)
-        buttonPresentation = presentation
-        button = ActionButton(
+        val sendButtonPresentation = Presentation(AutoDevBundle.message("chat.panel.send"))
+        sendButtonPresentation.setIcon(AutoDevIcons.Send)
+        this.sendButtonPresentation = sendButtonPresentation
+
+        val stopButtonPresentation = Presentation("Stop")
+        stopButtonPresentation.setIcon(AutoDevIcons.Idea)
+        this.stopButtonPresentation = stopButtonPresentation
+
+        sendButton = ActionButton(
             DumbAwareAction.create {
                 object : DumbAwareAction("") {
                     override fun actionPerformed(e: AnActionEvent) {
+                        showStopButton()
                         editorListeners.multicaster.onSubmit(this@AutoDevInputSection, AutoDevInputTrigger.Button)
                     }
                 }.actionPerformed(it)
             },
-            buttonPresentation,
+            this.sendButtonPresentation,
+            "",
+            Dimension(20, 20)
+        )
+
+        stopButton = ActionButton(
+            DumbAwareAction.create {
+                object : DumbAwareAction("") {
+                    override fun actionPerformed(e: AnActionEvent) {
+                        editorListeners.multicaster.onStop(this@AutoDevInputSection)
+                    }
+                }.actionPerformed(it)
+            },
+            this.stopButtonPresentation,
             "",
             Dimension(20, 20)
         )
@@ -125,13 +148,17 @@ class AutoDevInputSection(private val project: Project, val disposable: Disposab
             layoutPanel.addToLeft(customRag)
         }
 
+
+        buttonPanel.add(sendButton, "Send")
+        buttonPanel.add(stopButton, "Stop")
+
         layoutPanel.addToCenter(horizontalGlue)
-        layoutPanel.addToRight(button)
+        layoutPanel.addToRight(buttonPanel)
         addToBottom(layoutPanel)
 
         ComponentValidator(disposable!!).withValidator(Supplier<ValidationInfo?> {
             val validationInfo: ValidationInfo? = this.getInputValidationInfo()
-            button.setEnabled(validationInfo == null)
+            sendButton.setEnabled(validationInfo == null)
             return@Supplier validationInfo
         }).installOn((this as JComponent)).revalidate()
 
@@ -144,6 +171,16 @@ class AutoDevInputSection(private val project: Project, val disposable: Disposab
         tokenizer = TokenizerImpl.INSTANCE
     }
 
+    fun showStopButton() {
+        (buttonPanel.layout as? CardLayout)?.show(buttonPanel, "Stop")
+        stopButton.isEnabled = true
+    }
+
+    fun showSendButton() {
+        (buttonPanel.layout as? CardLayout)?.show(buttonPanel, "Send")
+        buttonPanel.isEnabled = true
+    }
+
     private fun loadRagApps(): List<CustomAgentConfig> {
         val ragsJsonConfig = project.customAgentSetting.ragsJsonConfig
         if (ragsJsonConfig.isEmpty()) return listOf(defaultRag)

src/main/kotlin/cc/unitmesh/devti/gui/chat/ChatCodingPanel.kt

@@ -90,10 +90,17 @@ class ChatCodingPanel(private val chatCodingService: ChatCodingService, val disp
 
         inputSection = AutoDevInputSection(chatCodingService.project, disposable)
         inputSection.addListener(object : AutoDevInputListener {
+            override fun onStop(component: AutoDevInputSection) {
+                chatCodingService.stop()
+                inputSection.showSendButton()
+            }
+
             override fun onSubmit(component: AutoDevInputSection, trigger: AutoDevInputTrigger) {
                 var prompt = component.text
                 component.text = ""
 
+                inputSection.showStopButton()
+
                 if (prompt.isEmpty() || prompt == "\n") {
                     return
                 }
@@ -216,6 +223,7 @@ class ChatCodingPanel(private val chatCodingService: ChatCodingService, val disp
         var text = ""
         content.onCompletion {
             logger.info("onCompletion ${it?.message}")
+            inputSection.showSendButton()
         }.catch {
             it.printStackTrace()
         }.collect {

src/main/kotlin/cc/unitmesh/devti/gui/chat/ChatCodingService.kt

@@ -13,6 +13,7 @@ import cc.unitmesh.devti.provider.ContextPrompter
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.components.service
 import com.intellij.openapi.project.Project
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.launch
 
@@ -22,14 +23,21 @@ class ChatCodingService(var actionType: ChatActionType, val project: Project) {
 
     val action = actionType.instruction(project = project).requestText
 
+    var currentJob: Job? = null
+
     fun getLabel(): String = "$actionType Code"
 
+    fun stop() {
+        currentJob?.cancel()
+    }
+
     fun handlePromptAndResponse(
         ui: ChatCodingPanel,
         prompter: ContextPrompter,
         context: ChatContext? = null,
         newChatContext: Boolean
     ) {
+        currentJob?.cancel()
         var requestPrompt = prompter.requestPrompt()
         var displayPrompt = prompter.displayPrompt()
 
@@ -59,7 +67,7 @@ class ChatCodingService(var actionType: ChatActionType, val project: Project) {
 
         ApplicationManager.getApplication().executeOnPooledThread {
             val response = this.makeChatBotRequest(requestPrompt, newChatContext)
-            LLMCoroutineScope.scope(project).launch {
+            currentJob = LLMCoroutineScope.scope(project).launch {
                 when {
                     actionType === ChatActionType.REFACTOR -> ui.updateReplaceableContent(response) {
                         context?.postAction?.invoke(it)
@@ -84,7 +92,7 @@ class ChatCodingService(var actionType: ChatActionType, val project: Project) {
         ApplicationManager.getApplication().executeOnPooledThread {
             val response = llmProvider.stream(requestPrompt, systemPrompt)
 
-            LLMCoroutineScope.scope(project).launch {
+            currentJob = LLMCoroutineScope.scope(project).launch {
                 ui.updateMessage(response)
             }
         }