Initial reply-to feature

activities/models/post.py

@@ -3,6 +3,7 @@ from typing import Dict, Optional
 
 import httpx
 import urlman
+from asgiref.sync import sync_to_async
 from django.db import models, transaction
 from django.template.defaultfilters import linebreaks_filter
 from django.utils import timezone
@@ -42,6 +43,10 @@ class PostStates(StateGraph):
         if post.visibility != Post.Visibilities.mentioned:
             async for follower in post.author.inbound_follows.select_related("source"):
                 targets.add(follower.source)
+        # If it's a reply, always include the original author if we know them
+        reply_post = await post.ain_reply_to_post()
+        if reply_post:
+            targets.add(reply_post.author)
         # Fan out to each one
         for follow in targets:
             await FanOut.objects.acreate(
@@ -141,6 +146,7 @@ class Post(StatorModel):
         action_unlike = "{view}unlike/"
         action_boost = "{view}boost/"
         action_unboost = "{view}unboost/"
+        action_reply = "/compose/?reply_to={self.id}"
 
         def get_scheme(self, url):
             return "https"
@@ -164,6 +170,18 @@ class Post(StatorModel):
         else:
             return self.object_uri
 
+    def in_reply_to_post(self) -> Optional["Post"]:
+        """
+        Returns the actual Post object we're replying to, if we can find it
+        """
+        return (
+            Post.objects.filter(object_uri=self.in_reply_to)
+            .select_related("author")
+            .first()
+        )
+
+    ain_reply_to_post = sync_to_async(in_reply_to_post)
+
     ### Content cleanup and extraction ###
 
     mention_regex = re.compile(
@@ -229,6 +247,7 @@ class Post(StatorModel):
         content: str,
         summary: Optional[str] = None,
         visibility: int = Visibilities.public,
+        reply_to: Optional["Post"] = None,
     ) -> "Post":
         with transaction.atomic():
             # Find mentions in this post
@@ -247,6 +266,8 @@ class Post(StatorModel):
                 )
                 if identity is not None:
                     mentions.add(identity)
+            if reply_to:
+                mentions.add(reply_to.author)
             # Strip all HTML and apply linebreaks filter
             content = linebreaks_filter(strip_html(content))
             # Make the Post object
@@ -257,6 +278,7 @@ class Post(StatorModel):
                 sensitive=bool(summary),
                 local=True,
                 visibility=visibility,
+                in_reply_to=reply_to.object_uri if reply_to else None,
             )
             post.object_uri = post.urls.object_uri
             post.url = post.absolute_object_uri()
@@ -284,6 +306,8 @@ class Post(StatorModel):
         }
         if self.summary:
             value["summary"] = self.summary
+        if self.in_reply_to:
+            value["inReplyTo"] = self.in_reply_to
         # Mentions
         for mention in self.mentions.all():
             value["tag"].append(

activities/views/posts.py

@@ -143,6 +143,7 @@ class Compose(FormView):
             ),
             help_text="Optional - Post will be hidden behind this text until clicked",
         )
+        reply_to = forms.CharField(widget=forms.HiddenInput(), required=False)
 
         def clean_text(self):
             text = self.cleaned_data.get("text")
@@ -155,10 +156,13 @@ class Compose(FormView):
                 )
             return text
 
-    def get_form_class(self):
-        form = super().get_form_class()
-        form.declared_fields["text"]
-        return form
+    def get_initial(self):
+        initial = super().get_initial()
+        if self.reply_to:
+            initial["reply_to"] = self.reply_to.pk
+            initial["visibility"] = Post.Visibilities.unlisted
+            initial["text"] = f"@{self.reply_to.author.handle} "
+        return initial
 
     def form_valid(self, form):
         post = Post.create_local(
@@ -166,7 +170,27 @@ class Compose(FormView):
             content=form.cleaned_data["text"],
             summary=form.cleaned_data.get("content_warning"),
             visibility=form.cleaned_data["visibility"],
+            reply_to=self.reply_to,
         )
         # Add their own timeline event for immediate visibility
         TimelineEvent.add_post(self.request.identity, post)
         return redirect("/")
+
+    def dispatch(self, request, *args, **kwargs):
+        # Grab the reply-to post info now
+        self.reply_to = None
+        reply_to_id = self.request.POST.get("reply_to") or self.request.GET.get(
+            "reply_to"
+        )
+        if reply_to_id:
+            try:
+                self.reply_to = Post.objects.get(pk=reply_to_id)
+            except Post.DoesNotExist:
+                pass
+        # Keep going with normal rendering
+        return super().dispatch(request, *args, **kwargs)
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context["reply_to"] = self.reply_to
+        return context

docs/features.rst

@@ -37,12 +37,14 @@ Features planned for releases up to 1.0:
 * Server defederation (blocking)
 * IP and email domain banning
 * Mastodon-compatible client API for use with apps
+* RSS feeds for users' public posts
 
 Features that may make it into 1.0, or might be further out:
 
 * Creating polls on posts, and handling received polls
 * Filter system for Home timeline
 * Hashtag trending system with moderation
+* Mastodon-compatible account migration target/source
 * Relay support
 
 Features on the long-term roadmap:

static/css/style.css

@@ -714,11 +714,11 @@ h1.identity small {
     display: block;
     float: right;
     color: var(--color-text-duller);
-    width: 60px;
+    width: 65px;
     text-align: center;
     background-color: var(--color-bg-main);
     border-radius: 3px;
-    padding: 3px 5px;
+    padding: 3px 3px;
 }
 
 .post time i {

templates/activities/_post.html

@@ -27,6 +27,7 @@
 
     {% if request.identity %}
     <div class="actions">
+        {% include "activities/_reply.html" %}
         {% include "activities/_like.html" %}
         {% include "activities/_boost.html" %}
     </div>

templates/activities/_reply.html

@@ -0,0 +1,4 @@
+
+<a title="Reply" href="{{ post.urls.action_reply }}">
+    <i class="fa-solid fa-reply"></i>
+</a>

templates/activities/compose.html

@@ -7,6 +7,10 @@
         {% csrf_token %}
         <fieldset>
             <legend>Content</legend>
+            {% if reply_to %}
+                <p>Replying to <a href="{{ reply_to.urls.view }}">{{ reply_to }}</a></p>
+            {% endif %}
+            {{ form.reply_to }}
             {% include "forms/_field.html" with field=form.text %}
             {% include "forms/_field.html" with field=form.content_warning %}
             {% include "forms/_field.html" with field=form.visibility %}