Refactor subscribe_widget

assets/js/subscribe_widget.js

@@ -1,31 +1,33 @@
-subscribe_button = document.getElementById('subscribe');
+var subscribe_button = document.getElementById('subscribe');
+subscribe_button.parentNode['action'] = 'javascript:void(0)';
 
-if (subscribe_button.getAttribute('onclick')) {
-    subscribe_button['href'] = 'javascript:void(0)';
+if (subscribe_button.getAttribute('data-type') === 'subscribe') {
+    subscribe_button.onclick = subscribe;
+} else {
+    subscribe_button.onclick = unsubscribe;
 }
 
 function subscribe(timeouts = 0) {
-    subscribe_button = document.getElementById('subscribe');
-
     if (timeouts > 10) {
         console.log('Failed to subscribe.');
         return;
     }
 
     var url = '/subscription_ajax?action_create_subscription_to_channel=1&redirect=false' +
-        '&c=<%= ucid %>&referer=<%= env.get("current_page") %>';
+        '&c=' + subscribe_data.ucid +
+        '&referer=' + location.pathname + location.search;
     var xhr = new XMLHttpRequest();
     xhr.responseType = 'json';
     xhr.timeout = 20000;
     xhr.open('POST', url, true);
     xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-    xhr.send('csrf_token=<%= URI.escape(env.get?("csrf_token").try &.as(String) || "") %>');
+    xhr.send('csrf_token=' + subscribe_data.csrf_token);
 
     var fallback = subscribe_button.innerHTML;
     subscribe_button.onclick = unsubscribe;
-    subscribe_button.innerHTML = '<b><%= translate(locale, "Unsubscribe").gsub("'", "\\'") %> | <%= sub_count_text %></b>';
+    subscribe_button.innerHTML = '<b>' + subscribe_data.unsubscribe_text + ' | ' + subscribe_data.sub_count_text + '</b>';
 
-    xhr.onreadystatechange = function() {
+    xhr.onreadystatechange = function () {
         if (xhr.readyState == 4) {
             if (xhr.status != 200) {
                 subscribe_button.onclick = subscribe;
@@ -34,34 +36,33 @@ function subscribe(timeouts = 0) {
         }
     }
 
-    xhr.ontimeout = function() {
+    xhr.ontimeout = function () {
         console.log('Subscribing timed out.');
         subscribe(timeouts + 1);
     };
 }
 
 function unsubscribe(timeouts = 0) {
-    subscribe_button = document.getElementById('subscribe');
-
     if (timeouts > 10) {
         console.log('Failed to subscribe');
         return;
     }
 
     var url = '/subscription_ajax?action_remove_subscriptions=1&redirect=false' +
-        '&c=<%= ucid %>&referer=<%= env.get("current_page") %>';
+        '&c=' + subscribe_data.ucid +
+        '&referer=' + location.pathname + location.search;
     var xhr = new XMLHttpRequest();
     xhr.responseType = 'json';
     xhr.timeout = 20000;
     xhr.open('POST', url, true);
     xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-    xhr.send('csrf_token=<%= URI.escape(env.get?("csrf_token").try &.as(String) || "") %>');
+    xhr.send('csrf_token=' + subscribe_data.csrf_token);
 
     var fallback = subscribe_button.innerHTML;
     subscribe_button.onclick = subscribe;
-    subscribe_button.innerHTML = '<b><%= translate(locale, "Subscribe").gsub("'", "\\'") %> | <%= sub_count_text %></b>';
+    subscribe_button.innerHTML = '<b>' + subscribe_data.subscribe_text + ' | ' + subscribe_data.sub_count_text + '</b>';
 
-    xhr.onreadystatechange = function() {
+    xhr.onreadystatechange = function () {
         if (xhr.readyState == 4) {
             if (xhr.status != 200) {
                 subscribe_button.onclick = unsubscribe;
@@ -70,7 +71,7 @@ function unsubscribe(timeouts = 0) {
         }
     }
 
-    xhr.ontimeout = function() {
+    xhr.ontimeout = function () {
         console.log('Unsubscribing timed out.');
         unsubscribe(timeouts + 1);
     };

src/invidious/views/channel.ecr

@@ -82,8 +82,3 @@
         <% end %>
     </div>
 </div>
-
-<script>
-<% sub_count_text = number_to_short_text(sub_count) %>
-<%= rendered "components/subscribe_widget_script" %>
-</script>

src/invidious/views/components/subscribe_widget.ecr

@@ -1,23 +1,35 @@
 <% if user %>
     <% if subscriptions.includes? ucid %>
         <p>
-            <form onsubmit="return false" action="/subscription_ajax?action_remove_subscriptions=1&c=<%= ucid %>&referer=<%= env.get("current_page") %>" method="post">
+            <form action="/subscription_ajax?action_remove_subscriptions=1&c=<%= ucid %>&referer=<%= env.get("current_page") %>" method="post">
                 <input type="hidden" name="csrf_token" value="<%= URI.escape(env.get?("csrf_token").try &.as(String) || "") %>">
-                <a id="subscribe" onclick="unsubscribe()" class="pure-button pure-button-primary" href="#">
+                <button data-type="unsubscribe" id="subscribe" class="pure-button pure-button-primary">
                     <b><input style="all:unset" type="submit" value="<%= translate(locale, "Unsubscribe") %> | <%= sub_count_text %>"></b>
-                </a>
+                </button>
             </form>
         </p>
     <% else %>
         <p>
-            <form onsubmit="return false" action="/subscription_ajax?action_create_subscription_to_channel=1&c=<%= ucid %>&referer=<%= env.get("current_page") %>" method="post">
+            <form action="/subscription_ajax?action_create_subscription_to_channel=1&c=<%= ucid %>&referer=<%= env.get("current_page") %>" method="post">
                 <input type="hidden" name="csrf_token" value="<%= URI.escape(env.get?("csrf_token").try &.as(String) || "") %>">
-                <a id="subscribe" onclick="subscribe()" class="pure-button pure-button-primary" href="#">
+                <button data-type="subscribe" id="subscribe" class="pure-button pure-button-primary">
                     <b><input style="all:unset" type="submit" value="<%= translate(locale, "Subscribe") %> | <%= sub_count_text %>"></b>
-                </a>
+                </button>
             </form>
         </p>
     <% end %>
+
+    <script>
+    var subscribe_data = {
+        ucid: '<%= ucid %>',
+        author: '<%= author %>',
+        sub_count_text: '<%= sub_count_text %>',
+        csrf_token: '<%= URI.escape(env.get?("csrf_token").try &.as(String) || "") %>',
+        subscribe_text: '<%= translate(locale, "Subscribe").gsub("'", "\\'") %>',
+        unsubscribe_text: '<%= translate(locale, "Unsubscribe").gsub("'", "\\'") %>'
+    }
+    </script>
+    <script src="/js/subscribe_widget.js"></script>
 <% else %>
     <p>
         <a id="subscribe" class="pure-button pure-button-primary"

src/invidious/views/playlists.ecr

@@ -72,8 +72,3 @@
         <% end %>
     </div>
 </div>
-
-<script>
-<% sub_count_text = number_to_short_text(sub_count) %>
-<%= rendered "components/subscribe_widget_script" %>
-</script>

src/invidious/views/watch.ecr

@@ -276,11 +276,6 @@ function number_with_separator(val) {
     return val;
 }
 
-<% ucid = video.ucid %>
-<% author = video.author %>
-<% sub_count_text = video.sub_count_text %>
-<%= rendered "components/subscribe_widget_script" %>
-
 <% if plid %>
 function get_playlist(plid, timeouts = 0) {
     playlist = document.getElementById('playlist');