Implement backward navigation for splited files

Whatsapp_Chat_Exporter/android_handler.py

@@ -817,9 +817,10 @@ def create_html(
                         render_box,
                         contact,
                         w3css,
-                        f"{safe_file_name}-{current_page + 1}.html",
                         chat,
-                        headline
+                        headline,
+                        next=f"{safe_file_name}-{current_page + 1}.html",
+                        previous=f"{safe_file_name}-{current_page - 1}.html" if current_page > 1 else False
                     )
                     render_box = [message]
                     current_size = 0
@@ -838,9 +839,10 @@ def create_html(
                             render_box,
                             contact,
                             w3css,
-                            False,
                             chat,
-                            headline
+                            headline,
+                            False,
+                            previous=f"{safe_file_name}-{current_page - 1}.html"
                         )
         else:
             output_file_name = f"{output_folder}/{safe_file_name}.html"
@@ -851,9 +853,9 @@ def create_html(
                 chat.get_messages(),
                 contact,
                 w3css,
-                False,
                 chat,
-                headline
+                headline,
+                False
             )
         if current % 10 == 0:
             print(f"Generating chats...({current}/{total_row_number})", end="\r")

Whatsapp_Chat_Exporter/utility.py

@@ -132,9 +132,10 @@ def rendering(
         msgs,
         contact,
         w3css,
-        next,
         chat,
-        headline
+        headline,
+        next=False,
+        previous=False
     ):
     if chat.their_avatar_thumb is None and chat.their_avatar is not None:
         their_avatar_thumb = chat.their_avatar
@@ -153,6 +154,7 @@ def rendering(
                 their_avatar_thumb=their_avatar_thumb,
                 w3css=w3css,
                 next=next,
+                previous=previous,
                 status=chat.status,
                 media_base=chat.media_base,
                 headline=headline

Whatsapp_Chat_Exporter/whatsapp.html

@@ -271,6 +271,10 @@
 			</div>
 		</article>
 		<footer class="w3-center">
+			<h2>
+			{% if previous %}
+			<a href="./{{ previous }}" target="_self">Previous</a>
+			{% endif %}
 			<h2>
 			{% if next %}
 			<a href="./{{ next }}" target="_self">Next</a>

Whatsapp_Chat_Exporter/whatsapp_new.html

@@ -166,6 +166,13 @@
                         <!-- <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-[#aebac1]" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                             <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7" />
                         </svg> -->
+                        {% if previous %}
+                        <a href="./{{ previous }}" target="_self">
+                            <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-[#aebac1]" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 5l-7 7 7 7" />
+                            </svg>
+                        </a>
+                        {% endif %}
                         {% if next %}
                         <a href="./{{ next }}" target="_self">
                             <svg xmlns="http://www.w3.org/2000/svg" class="h-5 w-5 text-[#aebac1]" fill="none" viewBox="0 0 24 24" stroke="currentColor">
@@ -334,9 +341,7 @@
                 </div>
                 <footer>
                     <h2 class="text-center">
-                    {% if next %}
-                    <a href="./{{ next }}" target="_self">Next</a>
-                    {% else %}
+                    {% if not next %}
                     End of History
                     {% endif %}
                     </h2>