From 8aa13dd2e7a2320f3aaa2f9e369137dc5808ce90 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 24 Oct 2023 12:37:11 +0530
Subject: [PATCH] When starting smil audio jump to the first available audio
 element in the spine after the current item in case the current item has no
 smil elements

---
 src/pyj/read_book/read_audio_ebook.pyj | 15 +++++++++++++--
 src/pyj/read_book/smil.pyj             |  3 +--
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/pyj/read_book/read_audio_ebook.pyj b/src/pyj/read_book/read_audio_ebook.pyj
index 9bc85b55bd..9ff9a53e7a 100644
--- a/src/pyj/read_book/read_audio_ebook.pyj
+++ b/src/pyj/read_book/read_audio_ebook.pyj
@@ -147,7 +147,7 @@ class ReadAudioEbook:
                 self.play()
             )
             return
-        spine_name, par = find_next_audio_in_spine(self.view.currently_showing.name, self.view.book.manifest)
+        spine_name, par = find_next_audio_in_spine(self.view.currently_showing.spine_index, self.view.book.manifest)
         if spine_name:
             self.view.show_name(spine_name, initial_position={'type': 'smil_id', 'anchor': par.anchor})
         else:
@@ -188,7 +188,18 @@ class ReadAudioEbook:
         )
 
     def start_playback(self):
-        self.send_message('play')
+        cn = self.view.currently_showing.name
+        if self.view.book.manifest.files[cn]?.smil_map:
+            self.send_message('play')
+        else:
+            spine_name, par = find_next_audio_in_spine(self.view.currently_showing.spine_index, self.view.book.manifest)
+        if not spine_name:
+            spine_name, par = find_next_audio_in_spine(-1, self.view.book.manifest)
+        if spine_name:
+            self.view.show_name(spine_name, initial_position={'type': 'smil_id', 'anchor': par.anchor})
+        else:
+            self.hide()
+            error_dialog(_('No audio'), _('No audio found in this book'))
 
     @property
     def container(self):
diff --git a/src/pyj/read_book/smil.pyj b/src/pyj/read_book/smil.pyj
index ad1f2d6fb7..bda0816fb2 100644
--- a/src/pyj/read_book/smil.pyj
+++ b/src/pyj/read_book/smil.pyj
@@ -81,10 +81,9 @@ def first_par(smil_map):
     return None
 
 
-def find_next_audio_in_spine(current_name, book_manifest):
+def find_next_audio_in_spine(spine_idx, book_manifest):
     spine = book_manifest.spine
     file_map = book_manifest.files
-    spine_idx = spine.indexOf(current_name)
 
     for i in range(spine_idx + 1, spine.length):
         q = spine[i]