Show available snippet models for Link and embed only if template is present

wagtail_draftail_snippet/static/wagtail_draftail_snippet/js/wagtail_draftail_snippet.js

@@ -15,15 +15,31 @@
   MUTABILITY['SNIPPET'] = 'MUTABLE';
   MUTABILITY['SNIPPET-EMBED'] = 'IMMUTABLE';
 
-  const getSnippetModelChooserConfig = () => {
+  const getSnippetModelChooserConfig = (entityType) => {
     let url;
     let urlParams;
 
+    if (entityType.type === 'SNIPPET') {
       return {
-      url: global.chooserUrls.snippetModelChooser,
+        url: global.chooserUrls.snippetLinkModelChooser,
         urlParams: {},
         onload: global.SNIPPET_MODEL_CHOOSER_MODAL_ONLOAD_HANDLERS,
       };
+    }
+    else if (entityType.type === 'SNIPPET-EMBED') {
+      return {
+        url: global.chooserUrls.snippetEmbedModelChooser,
+        urlParams: {},
+        onload: global.SNIPPET_MODEL_CHOOSER_MODAL_ONLOAD_HANDLERS,
+      };
+    }
+    else {
+      return {
+        url: null,
+        urlParams: {},
+        onload: {},
+      };
+    }
   };
 
   const getSnippetModelObjectChooserConfig = () => {
@@ -62,7 +78,7 @@
 
     componentDidMount() {
       const { onClose, entityType, entity, editorState } = this.props;
-      const { url, urlParams, onload } = getSnippetModelChooserConfig();
+      const { url, urlParams, onload } = getSnippetModelChooserConfig(entityType);
 
       $(document.body).on('hidden.bs.modal', this.onClose);
 

wagtail_draftail_snippet/urls.py

@@ -1,10 +1,11 @@
 from django.conf.urls import url
 
-from .views import choose_snippet_model
+from .views import choose_snippet_link_model, choose_snippet_embed_model
 
 
 app_name = "wagtaildraftailsnippet"
 
 urlpatterns = [
-    url(r"^choose-model/$", choose_snippet_model, name="choose_snippet_model")
+    url(r"^choose-link-model/$", choose_snippet_link_model, name="choose_snippet_link_model"),
+    url(r"^choose-embed-model/$", choose_snippet_embed_model, name="choose_snippet_embed_model"),
 ]

wagtail_draftail_snippet/views.py

@@ -6,31 +6,42 @@ from wagtail.snippets.models import get_snippet_models
 from .utils import get_snippet_frontend_template, get_snippet_embed_frontend_template
 
 
-def choose_snippet_model(request):
+def choose_snippet_link_model(request):
     snippet_model_opts = []
 
-    # Only display those snippet models which have snippet frontend template
+    # Only display those snippet models which have snippet link frontend template
     for snippet_model in get_snippet_models():
-        snippet_included = False
         snippet_frontend_template = get_snippet_frontend_template(
             snippet_model._meta.app_label, snippet_model._meta.model_name
         )
-        snippet_embed_frontend_template = get_snippet_embed_frontend_template(
-            snippet_model._meta.app_label, snippet_model._meta.model_name
-        )
 
         try:
             get_template(snippet_frontend_template)
             snippet_model_opts.append(snippet_model._meta)
-            snippet_included = True
-        except TemplateDoesNotExist:
-            pass
-
-        if not snippet_included:
-            try:
-                get_template(snippet_embed_frontend_template)
-                snippet_model_opts.append(snippet_model._meta)
-                snippet_included = True
+        except TemplateDoesNotExist:
+            pass
+
+    return render_modal_workflow(
+        request,
+        "wagtail_draftail_snippet/choose_snippet_model.html",
+        None,
+        {"snippet_model_opts": snippet_model_opts},
+        json_data={"step": "choose"},
+    )
+
+
+def choose_snippet_embed_model(request):
+    snippet_model_opts = []
+
+    # Only display those snippet models which have snippet embed frontend template
+    for snippet_model in get_snippet_models():
+        snippet_frontend_template = get_snippet_embed_frontend_template(
+            snippet_model._meta.app_label, snippet_model._meta.model_name
+        )
+
+        try:
+            get_template(snippet_frontend_template)
+            snippet_model_opts.append(snippet_model._meta)
         except TemplateDoesNotExist:
             pass
 

wagtail_draftail_snippet/wagtail_hooks.py

@@ -67,9 +67,13 @@ def register_snippet_embed_feature(features):
 def editor_js():
     return format_html(
         """
-            <script>window.chooserUrls.snippetModelChooser = '{0}';</script>
+            <script>
+                window.chooserUrls.snippetLinkModelChooser = '{0}';
+                window.chooserUrls.snippetEmbedModelChooser = '{1}';
+            </script>
         """,
-        reverse("wagtaildraftailsnippet:choose_snippet_model"),
+        reverse("wagtaildraftailsnippet:choose_snippet_link_model"),
+        reverse("wagtaildraftailsnippet:choose_snippet_embed_model"),
     )