From 55631f83a103d70f7b32a304461e4abe5bdbf500 Mon Sep 17 00:00:00 2001
From: yishai <yishai.r@gmail.com>
Date: Thu, 29 Jan 2026 04:18:52 +0200
Subject: [PATCH] Android: add canvas hasContent state tracking

Tracks whether the canvas has navigated content to support
conditional UI rendering based on canvas state.

AI-assisted (Claude) - lightly tested
---
 .../app/src/main/java/com/clawdbot/android/MainViewModel.kt | 1 +
 .../app/src/main/java/com/clawdbot/android/NodeRuntime.kt   | 1 +
 .../main/java/com/clawdbot/android/node/CanvasController.kt | 6 ++++++
 3 files changed, 8 insertions(+)

diff --git a/apps/android/app/src/main/java/com/clawdbot/android/MainViewModel.kt b/apps/android/app/src/main/java/com/clawdbot/android/MainViewModel.kt
index 696159708..5831200b4 100644
--- a/apps/android/app/src/main/java/com/clawdbot/android/MainViewModel.kt
+++ b/apps/android/app/src/main/java/com/clawdbot/android/MainViewModel.kt
@@ -53,6 +53,7 @@ class MainViewModel(app: Application) : AndroidViewModel(app) {
   val manualTls: StateFlow<Boolean> = runtime.manualTls
   val manualToken: StateFlow<String> = runtime.manualToken
   val canvasDebugStatusEnabled: StateFlow<Boolean> = runtime.canvasDebugStatusEnabled
+  val canvasHasContent: StateFlow<Boolean> = runtime.canvasHasContent
 
   val chatSessionKey: StateFlow<String> = runtime.chatSessionKey
   val chatSessionId: StateFlow<String?> = runtime.chatSessionId
diff --git a/apps/android/app/src/main/java/com/clawdbot/android/NodeRuntime.kt b/apps/android/app/src/main/java/com/clawdbot/android/NodeRuntime.kt
index 8a8a02baa..2fd2f4e2a 100644
--- a/apps/android/app/src/main/java/com/clawdbot/android/NodeRuntime.kt
+++ b/apps/android/app/src/main/java/com/clawdbot/android/NodeRuntime.kt
@@ -330,6 +330,7 @@ class NodeRuntime(context: Context) {
   val manualToken: StateFlow<String> = prefs.manualToken
   val lastDiscoveredStableId: StateFlow<String> = prefs.lastDiscoveredStableId
   val canvasDebugStatusEnabled: StateFlow<Boolean> = prefs.canvasDebugStatusEnabled
+  val canvasHasContent: StateFlow<Boolean> = canvas.hasContent
 
   private var didAutoConnect = false
   private var suppressWakeWordsSync = false
diff --git a/apps/android/app/src/main/java/com/clawdbot/android/node/CanvasController.kt b/apps/android/app/src/main/java/com/clawdbot/android/node/CanvasController.kt
index c7c7a76e1..042547a84 100644
--- a/apps/android/app/src/main/java/com/clawdbot/android/node/CanvasController.kt
+++ b/apps/android/app/src/main/java/com/clawdbot/android/node/CanvasController.kt
@@ -8,6 +8,9 @@ import android.webkit.WebView
 import androidx.core.graphics.createBitmap
 import androidx.core.graphics.scale
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlinx.coroutines.withContext
 import java.io.ByteArrayOutputStream
@@ -21,6 +24,8 @@ import com.clawdbot.android.BuildConfig
 import kotlin.coroutines.resume
 
 class CanvasController {
+  private val _hasContent = MutableStateFlow(false)
+  val hasContent: StateFlow<Boolean> = _hasContent.asStateFlow()
   enum class SnapshotFormat(val rawValue: String) {
     Png("png"),
     Jpeg("jpeg"),
@@ -48,6 +53,7 @@ class CanvasController {
   fun navigate(url: String) {
     val trimmed = url.trim()
     this.url = if (trimmed.isBlank() || trimmed == "/") null else trimmed
+    _hasContent.value = this.url != null
     reload()
   }