zulip/web/templates/stream_settings/stream_settings_checkbox.hbs

{{!-- If setting is disabled on realm level, then render setting as control-label-disabled and do not set setting value. Setting status should not change on any click handler, as it is disabled at realm level. --}}
<div class="sub_setting_checkbox">
    <div id="sub_{{setting_name}}_setting" class="{{#if disabled_realm_setting}}control-label-disabled
      {{else if notification_setting}}sub_notification_setting{{/if}} new-style">
        <span {{#if (and disabled_realm_setting (eq setting_name "push_notifications"))}}class="tippy-zulip-tooltip" data-tooltip-template-id="mobile-push-notification-tooltip-template"{{/if}}>
            <label class="checkbox">
                <input id="{{setting_name}}_{{stream_id}}" name="{{setting_name}}"
                  class="sub_setting_control" type="checkbox"
                  {{#if is_checked}}checked{{/if}}
                  {{#if is_disabled}}disabled="disabled"{{/if}} />
                <span></span>
            </label>
            <label class="inline" for="{{setting_name}}_{{stream_id}}">
                {{label}}
            </label>
        </span>
    </div>
    {{#if (eq setting_name "is_muted")}}
    {{> ../help_link_widget link="/help/mute-a-stream" }}
    {{else if (eq setting_name "push_notifications")}}
    {{> ../help_link_widget link="/help/mobile-notifications#enabling-push-notifications-for-self-hosted-servers" }}
    {{/if}}
</div>