fix(jetbrains): open session markdown links

.changeset/jetbrains-session-links.md

@@ -0,0 +1,5 @@
+---
+"@kilocode/kilo-jetbrains": patch
+---
+
+Support opening links in JetBrains session markdown transcripts.

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/SessionUi.kt

@@ -36,6 +36,7 @@ import ai.kilocode.client.ui.layout.Stack
 import ai.kilocode.log.ChatLogSummary
 import com.intellij.util.ui.JBUI
 import ai.kilocode.log.KiloLog
+import com.intellij.ide.BrowserUtil
 import com.intellij.ide.ui.LafManagerListener
 import com.intellij.openapi.Disposable
 import com.intellij.openapi.application.ApplicationManager
@@ -223,7 +224,7 @@ class SessionUi(
             reply = { id, dto -> controller.replyPermission(id, dto) },
         )
         login = LoginRequiredView(openProfile = { controller.openProfile() }, dismiss = { controller.dismissLoginRequired() })
-        messageBody = SessionMessageListPanel(controller.model, this, question, permission, login, ::openFile)
+        messageBody = SessionMessageListPanel(controller.model, this, question, permission, login, ::openFile, ::openUrl)
         header = SessionHeaderPanel(controller, this)
 
         scroll = SessionScroll(root, sessionContent, messageBody, blankBody)
@@ -433,6 +434,10 @@ class SessionUi(
         }
     }
 
+    private fun openUrl(url: String) {
+        BrowserUtil.browse(url)
+    }
+
     private fun onStateChanged(state: SessionState) {
         prompt.setBusy(state.isBusy())
         load.setState(state)

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/ui/SessionMessageListPanel.kt

@@ -47,6 +47,7 @@ class SessionMessageListPanel(
     private val permission: PermissionView? = null,
     private val login: LoginRequiredView? = null,
     private val openFile: (String) -> Unit,
+    private val openUrl: (String) -> Unit = {},
 ) : SessionLayoutPanel(
     JBUI.scale(SessionUiStyle.SessionLayout.GAP),
     JBUI.insets(
@@ -174,7 +175,7 @@ class SessionMessageListPanel(
     // ------ private event handlers ------
 
     private fun onTurnAdded(turn: ai.kilocode.client.session.model.Turn) {
-        val tv = TurnView(turn.id, openFile, style)
+        val tv = TurnView(turn.id, openFile, style, openUrl)
         turnViews[turn.id] = tv
         for (msgId in turn.messageIds) {
             val msg = model.message(msgId) ?: continue
@@ -225,7 +226,7 @@ class SessionMessageListPanel(
         removeAll()
 
         for (turn in model.turns()) {
-            val tv = TurnView(turn.id, openFile, style)
+            val tv = TurnView(turn.id, openFile, style, openUrl)
             turnViews[turn.id] = tv
             for (msgId in turn.messageIds) {
                 val msg = model.message(msgId) ?: continue

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/MessageView.kt

@@ -31,6 +31,7 @@ class MessageView(
     val msg: Message,
     private val openFile: (String) -> Unit,
     private var style: SessionEditorStyle = SessionEditorStyle.current(),
+    private val openUrl: (String) -> Unit = {},
 ) : ai.kilocode.client.session.ui.SessionLayoutPanel(
     JBUI.scale(SessionUiStyle.SessionLayout.GAP),
 ), SessionEditorStyleTarget, SessionView {
@@ -165,9 +166,9 @@ class MessageView(
     }
 
     private fun view(content: Content) = if (msg.info.role == SessionUiStyle.View.Message.USER_ROLE) {
-        ViewFactory.createUser(content, openFile)
+        ViewFactory.createUser(content, openFile, openUrl)
     } else {
-        ViewFactory.create(content, openFile)
+        ViewFactory.create(content, openFile, openUrl)
     }
 
     /** Append a streaming delta to the renderer for [contentId]. */

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/ReasoningView.kt

@@ -23,7 +23,11 @@ import javax.swing.ScrollPaneConstants
 import javax.swing.Scrollable
 
 /** Renders reasoning as a secondary collapsible block. */
-class ReasoningView(reasoning: Reasoning, private val parts: ReasoningParts = reasoningParts()) :
+class ReasoningView(
+    reasoning: Reasoning,
+    openUrl: (String) -> Unit = {},
+    private val parts: ReasoningParts = reasoningParts(),
+) :
     SecondarySessionPartView(parts.header, parts.scroll) {
 
     override val contentId: String = reasoning.id
@@ -37,6 +41,7 @@ class ReasoningView(reasoning: Reasoning, private val parts: ReasoningParts = re
         bindHeader(parts.title, parts.icon)
         applyStyle(style)
         md.opaque = false
+        md.addLinkListener { openUrl(it.href) }
         md.set(source)
         parts.panel.add(md.component, BorderLayout.CENTER)
         sync()

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/TextView.kt

@@ -12,7 +12,11 @@ import java.awt.BorderLayout
  *
  * Supports both full-replacement ([update]) and streaming append ([appendDelta]).
  */
-class TextView(text: Text, transparent: Boolean = false) : PartView() {
+class TextView(
+    text: Text,
+    transparent: Boolean = false,
+    openUrl: (String) -> Unit = {},
+) : PartView() {
 
     override val contentId: String = text.id
 
@@ -22,6 +26,7 @@ class TextView(text: Text, transparent: Boolean = false) : PartView() {
         layout = BorderLayout()
         isOpaque = false
         md.opaque = !transparent
+        md.addLinkListener { openUrl(it.href) }
         applyStyle(SessionEditorStyle.current())
         add(md.component, BorderLayout.CENTER)
         if (text.content.isNotEmpty()) md.set(text.content.toString())

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/ToolView.kt

@@ -189,10 +189,14 @@ class ReadToolView(
     internal fun hasToggle() = arrow.isVisible
     internal fun horizontalPolicy() = parts.scroll.horizontalScrollBarPolicy
     internal fun bodyMaxRows() = SessionUiStyle.View.Tool.BODY_LINES
+    internal fun bodyFont() = parts.text.font
     internal fun linkVisible() = parts.link.isVisible
     internal fun linkText() = parts.label
     internal fun linkMarkup() = parts.link.text ?: ""
     internal fun linkForeground() = parts.link.foreground
+    internal fun linkFont() = parts.link.font
+    internal fun subtitleForeground() = parts.sub.foreground
+    internal fun subtitleFont() = parts.sub.font
     internal fun linkHref() = parts.href
     internal fun openLink() = parts.openLink()
 
@@ -200,8 +204,8 @@ class ReadToolView(
         this.style = style
         var changed = false
         changed = setFont(parts.title, style.boldEditorFont) || changed
-        changed = setFont(parts.sub, style.smallEditorFont) || changed
-        changed = setFont(parts.link, style.smallEditorFont) || changed
+        changed = setFont(parts.sub, style.transcriptFont) || changed
+        changed = setFont(parts.link, style.transcriptFont) || changed
         changed = setFont(parts.state, style.smallEditorFont) || changed
         changed = setFont(parts.text, style.transcriptFont) || changed
         if (changed) refresh()
@@ -216,6 +220,8 @@ class ReadToolView(
         changed = setText(parts.title, title(item)) || changed
         changed = syncSubtitle() || changed
         changed = setForeground(parts.title, titleColor(item)) || changed
+        changed = setForeground(parts.sub, UiStyle.Colors.fg()) || changed
+        changed = setForeground(parts.link, UiStyle.Colors.fg()) || changed
         changed = setText(parts.state, stateText(item)) || changed
         changed = setForeground(parts.state, color(item)) || changed
         changed = setForeground(parts.text, bodyColor()) || changed
@@ -297,7 +303,7 @@ private fun toolParts(tool: Tool, openFile: ((String) -> Unit)? = null): ToolPar
     val link = JBLabel().apply {
         isVisible = false
         isFocusable = false
-        foreground = UiStyle.Colors.weak()
+        foreground = UiStyle.Colors.fg()
         cursor = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)
         setRequestFocusEnabled(false)
         addMouseListener(object : MouseAdapter() {

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/TurnView.kt

@@ -20,6 +20,7 @@ class TurnView(
     val id: String,
     private val openFile: (String) -> Unit,
     private var style: SessionEditorStyle = SessionEditorStyle.current(),
+    private val openUrl: (String) -> Unit = {},
 ) : SessionLayoutPanel(JBUI.scale(SessionUiStyle.SessionLayout.GAP)), SessionEditorStyleTarget {
 
     constructor(id: String, openFile: (String) -> Unit) : this(id, openFile, SessionEditorStyle.current())
@@ -32,7 +33,7 @@ class TurnView(
 
     /** Add a new [MessageView] for [msg] at the end of this turn. */
     fun addMessage(msg: Message): MessageView {
-        val view = MessageView(msg, openFile, style)
+        val view = MessageView(msg, openFile, style, openUrl)
         messages[msg.info.id] = view
         add(view)
         revalidate()

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/ViewFactory.kt

@@ -21,9 +21,13 @@ import ai.kilocode.client.session.views.todo.TodoWriteView
  * 3. Add a branch here — the exhaustive `when` will surface the gap as a compile error.
  */
 object ViewFactory {
-    fun create(content: Content, openFile: (String) -> Unit): PartView = when (content) {
-        is Text -> TextView(content)
-        is Reasoning -> ReasoningView(content)
+    fun create(
+        content: Content,
+        openFile: (String) -> Unit,
+        openUrl: (String) -> Unit = {},
+    ): PartView = when (content) {
+        is Text -> TextView(content, openUrl = openUrl)
+        is Reasoning -> ReasoningView(content, openUrl = openUrl)
         is Tool -> when {
             TodoWriteView.canRender(content) -> TodoWriteView(content)
             PlanExitView.canRender(content) -> PlanExitView(content, openFile)
@@ -36,9 +40,13 @@ object ViewFactory {
         is Generic -> GenericView(content)
     }
 
-    fun createUser(content: Content, openFile: (String) -> Unit): PartView = when (content) {
-        is Text -> TextView(content, transparent = true)
-        else -> create(content, openFile)
+    fun createUser(
+        content: Content,
+        openFile: (String) -> Unit,
+        openUrl: (String) -> Unit = {},
+    ): PartView = when (content) {
+        is Text -> TextView(content, transparent = true, openUrl = openUrl)
+        else -> create(content, openFile, openUrl)
     }
 
     /**

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/session/ui/SessionMessageListPanelTest.kt

@@ -165,6 +165,18 @@ class SessionMessageListPanelTest : BasePlatformTestCase() {
         assertTrue(mv.part("p1") is TextView)
     }
 
+    fun `test text markdown link uses panel url opener`() {
+        val urls = mutableListOf<String>()
+        val item = SessionMessageListPanel(model, parent, openFile = openFile, openUrl = { urls.add(it) })
+        model.upsertMessage(msg("a1", "assistant"))
+        model.updateContent("a1", part("p1", "a1", "text", text = "[docs](https://kilocode.ai/docs)"))
+
+        val view = item.findMessage("a1")!!.part("p1") as TextView
+        view.md.simulateLink("https://kilocode.ai/docs")
+
+        assertEquals(listOf("https://kilocode.ai/docs"), urls)
+    }
+
     fun `test ContentDelta appends text to TextView`() {
         model.upsertMessage(msg("a1", "assistant"))
         model.updateContent("a1", part("p1", "a1", "text", text = "hello "))

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/session/views/ReadToolViewTest.kt

@@ -49,7 +49,8 @@ class ReadToolViewTest : BasePlatformTestCase() {
         assertEquals("SessionUiLayoutTest.kt", view.linkText())
         assertEquals(path, view.linkHref())
         assertTrue(view.linkMarkup().contains("<u>SessionUiLayoutTest.kt</u>"))
-        assertEquals(UiStyle.Colors.weak().rgb, view.linkForeground().rgb)
+        assertEquals(UiStyle.Colors.fg().rgb, view.linkForeground().rgb)
+        assertEquals(view.linkFont(), view.bodyFont())
         assertTrue(view.labelText().contains("SessionUiLayoutTest.kt"))
 
         view.openLink()
@@ -71,6 +72,8 @@ class ReadToolViewTest : BasePlatformTestCase() {
 
         assertFalse(view.linkVisible())
         assertNull(view.linkHref())
+        assertEquals(UiStyle.Colors.fg().rgb, view.subtitleForeground().rgb)
+        assertEquals(view.subtitleFont(), view.bodyFont())
         assertTrue(view.labelText().contains(path))
     }
 

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/session/views/ReasoningViewTest.kt

@@ -163,6 +163,17 @@ class ReasoningViewTest : BasePlatformTestCase() {
         assertTrue(view.preferredSize.height > 0)
     }
 
+    fun `test link opens url callback`() {
+        val urls = mutableListOf<String>()
+        val view = ReasoningView(reasoning("p1", done = true, text = "[docs](https://kilocode.ai/docs)"), openUrl = {
+            urls.add(it)
+        })
+
+        view.md.simulateLink("https://kilocode.ai/docs")
+
+        assertEquals(listOf("https://kilocode.ai/docs"), urls)
+    }
+
     private fun assertEditorSheet(sheet: String, style: SessionEditorStyle) {
         assertTrue(sheet.contains(style.editorFamily))
         assertTrue(sheet.contains("${style.editorSize}pt"))

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/session/views/TextViewTest.kt

@@ -113,4 +113,13 @@ class TextViewTest : BasePlatformTestCase() {
         view.appendDelta("**")
         assertTrue(view.md.html().contains("<strong>"))
     }
+
+    fun `test link opens url callback`() {
+        val urls = mutableListOf<String>()
+        val view = TextView(Text("p1"), openUrl = { urls.add(it) })
+
+        view.md.simulateLink("https://kilocode.ai/docs")
+
+        assertEquals(listOf("https://kilocode.ai/docs"), urls)
+    }
 }