feat(hobbs-organizer): v1.3.0 photo gallery + Shield photo app 1.1, slideshow 15s

- /photo/gallery: D-pad grid, OK opens full screen, arrows browse, Back returns
- 400px gallery tiles cached per photo (sync + uploads)
- com.dayline.photos 1.1: launcher tile opens the gallery, takes remote input,
  Back steps through WebView history; screensaver unchanged
- slideshow interval 20s -> 15s (live settings)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E9NnVEico3WvFxLyjy1iW3

tv app/Hobbs-Family-Organizer-Self-Hosted-v1.0.0/shield/photos-source/app/build.gradle

@@ -16,8 +16,8 @@ android {
         applicationId "com.dayline.photos"
         minSdk 26
         targetSdk 35
-        versionCode 1
-        versionName "1.0"
+        versionCode 2
+        versionName "1.1"
         buildConfigField "String", "DEFAULT_URL", "\"http://192.168.86.100:8340/photo\""
     }
 

tv app/Hobbs-Family-Organizer-Self-Hosted-v1.0.0/shield/photos-source/app/src/main/java/com/dayline/photos/PhotoActivity.java

@@ -5,7 +5,7 @@ import android.os.Bundle;
 import android.view.View;
 import android.view.WindowManager;
 
-/** Launcher tile: the photo frame, full screen, screen kept on. Back exits. */
+/** Launcher tile: the photo gallery (remote-driven grid), full screen, screen kept on. Back steps back, then exits. */
 public final class PhotoActivity extends Activity {
     private PhotoFrameView frame;
 
@@ -13,9 +13,10 @@ public final class PhotoActivity extends Activity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-        frame = new PhotoFrameView(this);
+        frame = new PhotoFrameView(this, "/gallery", true);
         setContentView(frame.view());
         hideSystemUi();
+        frame.view().requestFocus();
         frame.load();
     }
 
@@ -25,6 +26,13 @@ public final class PhotoActivity extends Activity {
         if (hasFocus) hideSystemUi();
     }
 
+    @Override
+    @SuppressWarnings("deprecation")
+    public void onBackPressed() {
+        if (frame != null && frame.goBack()) return;
+        super.onBackPressed();
+    }
+
     @SuppressWarnings("deprecation")
     private void hideSystemUi() {
         getWindow().getDecorView().setSystemUiVisibility(

tv app/Hobbs-Family-Organizer-Self-Hosted-v1.0.0/shield/photos-source/app/src/main/java/com/dayline/photos/PhotoDreamService.java

@@ -12,7 +12,7 @@ public final class PhotoDreamService extends DreamService {
         setInteractive(false);
         setFullscreen(true);
         setScreenBright(true);
-        frame = new PhotoFrameView(this);
+        frame = new PhotoFrameView(this, "", false);
         setContentView(frame.view());
     }
 

tv app/Hobbs-Family-Organizer-Self-Hosted-v1.0.0/shield/photos-source/app/src/main/java/com/dayline/photos/PhotoFrameView.java

@@ -22,8 +22,9 @@ import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 
 /**
- * A locked-down full-screen WebView showing the organizer's /photo page.
- * Shared by the launcher activity and the screen saver.
+ * A locked-down full-screen WebView showing the organizer's photo pages.
+ * Shared by the launcher activity (interactive gallery, /photo/gallery) and the screen saver
+ * (non-interactive slideshow, /photo).
  */
 final class PhotoFrameView {
     private static final long RETRY_MS = 30_000;
@@ -34,17 +35,26 @@ final class PhotoFrameView {
     private final String url;
     private final String origin;
     private boolean destroyed;
+    /** Set by load(): the next finished page becomes the bottom of the Back stack. */
+    private boolean clearHistoryWhenLoaded;
 
+    /**
+     * @param subPath appended to the configured photo URL (e.g. "/gallery"), or "" for the slideshow
+     * @param interactive true to take remote (D-pad) input; the screen saver passes false
+     */
     @SuppressLint("SetJavaScriptEnabled")
-    PhotoFrameView(Context context) {
-        url = configuredUrl(context);
+    PhotoFrameView(Context context, String subPath, boolean interactive) {
+        String base = configuredUrl(context);
+        while (base.endsWith("/")) base = base.substring(0, base.length() - 1);
+        url = base + subPath;
         Uri parsed = Uri.parse(url);
         origin = parsed.getScheme() + "://" + parsed.getAuthority();
 
         WebView.setWebContentsDebuggingEnabled(false);
         webView = new WebView(context);
         webView.setBackgroundColor(Color.BLACK);
-        webView.setFocusable(false);
+        webView.setFocusable(interactive);
+        webView.setFocusableInTouchMode(interactive);
 
         WebSettings settings = webView.getSettings();
         settings.setJavaScriptEnabled(true);
@@ -58,7 +68,7 @@ final class PhotoFrameView {
         settings.setLoadWithOverviewMode(true);
         settings.setMixedContentMode(WebSettings.MIXED_CONTENT_NEVER_ALLOW);
         settings.setMediaPlaybackRequiresUserGesture(true);
-        settings.setUserAgentString(settings.getUserAgentString() + " HobbsPhotoFrame/1.0");
+        settings.setUserAgentString(settings.getUserAgentString() + " HobbsPhotoFrame/" + BuildConfig.VERSION_NAME);
         CookieManager.getInstance().setAcceptCookie(false);
 
         webView.setWebChromeClient(new WebChromeClient());
@@ -68,6 +78,15 @@ final class PhotoFrameView {
                 return !sameOrigin(request.getUrl());
             }
 
+            @Override
+            public void onPageFinished(WebView view, String finishedUrl) {
+                // Drop the "waiting for server" page (and anything before it) from the Back stack.
+                if (clearHistoryWhenLoaded && finishedUrl != null && finishedUrl.startsWith(origin)) {
+                    clearHistoryWhenLoaded = false;
+                    view.clearHistory();
+                }
+            }
+
             @Override
             public void onReceivedSslError(WebView view, SslErrorHandler sslHandler, SslError error) {
                 sslHandler.cancel();
@@ -88,7 +107,16 @@ final class PhotoFrameView {
     }
 
     void load() {
-        if (!destroyed) webView.loadUrl(url);
+        if (destroyed) return;
+        clearHistoryWhenLoaded = true;
+        webView.loadUrl(url);
+    }
+
+    /** Back key: step back inside the pages (e.g. close a full-screen photo). False = nothing left, exit. */
+    boolean goBack() {
+        if (destroyed || !webView.canGoBack()) return false;
+        webView.goBack();
+        return true;
     }
 
     void destroy() {