added support for string type src in image

Author: rajatsingla

tests/data/html/image-src_string.html

@@ -0,0 +1 @@
+<figure><picture><source srcset="https://placekitten.com/200/301" type="image"/><source srcset="https://placekitten.com/200/301" type="image"/><img src="https://placekitten.com/200/301" alt="Sleepy Kitten" width="300" height="400"/></picture><figcaption>Cute Kitty</figcaption></figure>

tests/data/json/image-src_string.json

@@ -0,0 +1,15 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "image",
+      "attrs": {
+        "src": "https://placekitten.com/200/301",
+        "alt": "Sleepy Kitten",
+        "caption": "Cute Kitty",
+        "height": 400,
+        "width": 300
+      }
+    }
+  ]
+}

tests/test_transform.py

@@ -21,6 +21,7 @@
     "image-no_caption",
     "image-mime_type",
     "image-height_width",
+    "image-src_string",
     "featuredimage",
     "featuredimage-is_renderable",
     "featuredimage-missing_caption",

tiptapy/macros.py

@@ -20,7 +20,11 @@ def make_img_src(attrs):
     alt = attrs.get("alt", "").strip()
     height = attrs.get("height", "")
     width = attrs.get("width", "")
-    fallback_url = attrs["src"]["fallback"].strip()
+    if isinstance(attrs["src"], dict):
+        fallback_url = attrs["src"]["fallback"].strip()
+    else:
+        fallback_url = attrs["src"].strip()
+
     img = f'img src="{fallback_url}"'
     if alt:
         img += f' alt="{alt}"'

tiptapy/templates/image.html

@@ -3,9 +3,9 @@
   {%- set alt = node.attrs.alt|trim -%}
   {%- set height = node.attrs.height -%}
   {%- set width = node.attrs.width -%}
-  {%- set image_url = node.attrs.src.image|trim -%}
+  {%- set image_url = (node.attrs.src.image if node.attrs.src is mapping else node.attrs.src)|trim -%}
   {%- set image_type = url2mime(image_url) -%}
-  {%- set fallback_url = node.attrs.src.fallback|trim -%}
+  {%- set fallback_url = (node.attrs.src.fallback if node.attrs.src is mapping else node.attrs.src)|trim -%}
   {%- set fallback_type = url2mime(fallback_url) -%}
 
   {%- if image_url or fallback_url -%}