Add interface for copying tags from other photos.

frontends/etiquette_flask/backend/endpoints/photo_endpoints.py

@@ -110,6 +110,18 @@ def post_photo_add_tag(photo_id):
     )
     return response
 
+@site.route('/photo/<photo_id>/copy_tags', methods=['POST'])
+@decorators.required_fields(['other_photo'], forbid_whitespace=True)
+def post_photo_copy_tags(photo_id):
+    '''
+    Copy the tags from another photo.
+    '''
+    photo = common.P_photo(photo_id, response_type='json')
+    other = common.P_photo(request.form['other_photo'], response_type='json')
+    photo.copy_tags(other)
+    common.P.commit('photo copy tags')
+    return jsonify.make_json_response([tag.jsonify(minimal=True) for tag in photo.get_tags()])
+
 @site.route('/photo/<photo_id>/remove_tag', methods=['POST'])
 @decorators.required_fields(['tagname'], forbid_whitespace=True)
 def post_photo_remove_tag(photo_id):

frontends/etiquette_flask/static/js/api.js

@@ -239,6 +239,15 @@ function batch_unset_searchhidden(photo_ids, callback)
     common.post(url, data, callback);
 }
 
+api.photos.copy_tags =
+function copy_tags(photo_id, other_photo, callback)
+{
+    const url = `/photo/${photo_id}/copy_tags`;
+    const data = new FormData();
+    data.append("other_photo", other_photo);
+    common.post(url, data, callback)
+}
+
 api.photos.delete =
 function _delete(photo_id, delete_file, callback)
 {

frontends/etiquette_flask/templates/photo.html

@@ -257,6 +257,18 @@
         {% if photo.simple_mimetype == "video" %}
         <button id="generate_thumbnail_button" class="green_button button_with_spinner" onclick="return generate_thumbnail_for_video_form();">Capture thumbnail</button>
         {% endif %}
+
+        <button
+        class="green_button button_with_confirm"
+        data-holder-id="copy_other_photo_tags_holder"
+        data-is-input="1"
+        data-prompt="Other photo ID"
+        data-cancel-class="gray_button"
+        data-onclick="return copy_other_photo_tags_form(event);"
+        >
+            Copy tags from other photo
+        </button>
+
         <button
         class="red_button button_with_confirm"
         data-onclick="return delete_photo_form();"
@@ -331,6 +343,16 @@ function add_photo_tag_callback(response)
     sort_tag_cards();
 }
 
+function copy_other_photo_tags_form(event)
+{
+    const other_photo = event.target.input_source.value;
+    if (! other_photo.trim())
+    {
+        return;
+    }
+    api.photos.copy_tags(PHOTO_ID, other_photo, common.refresh_or_alert);
+}
+
 function remove_photo_tag_form(photo_id, tagname)
 {
     api.photos.remove_tag(photo_id, tagname, remove_photo_tag_callback);