fix(upload): resolve electron file-path fallback and android provider automation stalls

android/app/src/main/java/plebchan/android/MediaUploadAutomationRunner.java

@@ -49,6 +49,8 @@ public class MediaUploadAutomationRunner {
     private final Handler mainHandler;
     private final Runnable pollRunnable;
     private boolean finished;
+    private boolean fileChooserHandled;
+    private boolean fileInputTriggerAttempted;
     private long startTime;
 
     public MediaUploadAutomationRunner(
@@ -86,6 +88,7 @@ public class MediaUploadAutomationRunner {
                             WebView webView,
                             ValueCallback<Uri[]> filePathCallback,
                             FileChooserParams fileChooserParams) {
+                        fileChooserHandled = true;
                         MediaUploadAutomationRunner.this.filePathCallback = filePathCallback;
                         if (fileUri != null) {
                             filePathCallback.onReceiveValue(new Uri[] {fileUri});
@@ -120,7 +123,21 @@ public class MediaUploadAutomationRunner {
             finish(new MediaUploadResult(false, null, "No trigger JS for " + provider));
             return;
         }
-        webView.evaluateJavascript(js, value -> schedulePoll());
+        fileInputTriggerAttempted = true;
+        webView.evaluateJavascript(
+                js,
+                value -> {
+                    String normalized = value == null ? "" : value.replace("\"", "").trim();
+                    if ("true".equals(normalized)) {
+                        schedulePoll();
+                    } else {
+                        finish(
+                                new MediaUploadResult(
+                                        false,
+                                        null,
+                                        "Could not find upload file input for provider " + provider));
+                    }
+                });
     }
 
     private void schedulePoll() {
@@ -136,6 +153,14 @@ public class MediaUploadAutomationRunner {
             finish(new MediaUploadResult(false, null, "Upload timeout"));
             return;
         }
+        if (fileInputTriggerAttempted
+                && !fileChooserHandled
+                && elapsed >= MediaUploadRecipes.FILE_INPUT_TIMEOUT_MS) {
+            finish(
+                    new MediaUploadResult(
+                            false, null, "Provider file chooser was not triggered for " + provider));
+            return;
+        }
 
         String successJs = MediaUploadRecipes.getSuccessJs(provider);
         String blockedJs = MediaUploadRecipes.getBlockedJs(provider);

android/app/src/main/java/plebchan/android/MediaUploadRecipes.java

@@ -13,6 +13,8 @@ public final class MediaUploadRecipes {
 
     /** Max time to wait for upload completion (ms). */
     public static final long UPLOAD_TIMEOUT_MS = 45_000;
+    /** Max time to wait for provider file input to be found/triggered (ms). */
+    public static final long FILE_INPUT_TIMEOUT_MS = 8_000;
     /** Poll interval for success/blocked checks (ms). */
     public static final long POLL_INTERVAL_MS = 500;
 
@@ -61,7 +63,7 @@ public final class MediaUploadRecipes {
             if (i > 0) sb.append(",");
             sb.append("\"").append(escapeJs(selectors[i])).append("\"");
         }
-        sb.append("];for(var i=0;i<s.length;i++){var el=document.querySelector(s[i]);if(el){el.click();return;}}})();");
+        sb.append("];for(var i=0;i<s.length;i++){var el=document.querySelector(s[i]);if(el){el.click();return true;}}return false;})()");
         return sb.toString();
     }