Check for deleted posts and images when updating a thread.

ref #73

4chan_x.user.js

@@ -750,12 +750,25 @@
       }
       this.isReply = $.hasClass(post, 'reply');
       if (that.isArchived) {
-        this.isDead = true;
+        this.kill();
       }
       this.clones = [];
       g.posts["" + board + "." + this] = thread.posts[this] = board.posts[this] = this;
     }
 
+    Post.prototype.kill = function(img) {
+      if (this.file && !this.file.isDead) {
+        this.file.isDead = true;
+        $.log('kill image', this.ID);
+      }
+      if (img) {
+        return;
+      }
+      $.log('kill post', this.ID);
+      this.isDead = true;
+      return $.addClass(this.nodes.root, 'dead');
+    };
+
     Post.prototype.addClone = function(context) {
       return new Clone(this, context);
     };
@@ -1623,6 +1636,8 @@
                 textContent: "" + quote + "\u00A0(Dead)",
                 target: '_blank'
               });
+              a.setAttribute('data-board', board);
+              a.setAttribute('data-postid', ID);
             } else {
               a = $.el('a', {
                 href: "/" + board + "/" + post.thread + "/res/#p" + ID,
@@ -2526,7 +2541,7 @@
             default:
               this.unsuccessfulFetchCount++;
               this.set('timer', this.getInterval());
-              this.set('status', this.req.statusText);
+              this.set('status', "" + this.req.statusText + " (" + this.req.status + ")");
               this.status.className = 'warning';
           }
           return delete this.req;
@@ -2589,23 +2604,40 @@
       };
 
       _Class.prototype.parse = function(postObjects) {
-        var count, node, nodes, postObject, posts, scroll, spoilerRange, _i, _len, _ref;
-        if (spoilerRange = postObjects[0].custom_spoiler) {
-          Build.spoilerRange[this.thread.board] = spoilerRange;
-        }
+        var ID, count, i, image, index, node, nodes, num, post, postObject, posts, scroll, _i, _len, _ref;
+        Build.spoilerRange[this.thread.board] = postObjects[0].custom_spoiler;
         nodes = [];
         posts = [];
+        index = [];
+        image = [];
         count = 0;
-        _ref = postObjects.reverse();
-        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-          postObject = _ref[_i];
-          if (postObject.no <= this.lastPost) {
-            break;
+        for (_i = 0, _len = postObjects.length; _i < _len; _i++) {
+          postObject = postObjects[_i];
+          num = postObject.no;
+          index.push(num);
+          if (postObject.ext) {
+            image.push(num);
+          }
+          if (num <= this.lastPost) {
+            continue;
           }
           count++;
           node = Build.postFromObject(postObject, this.thread.board.ID);
-          nodes.unshift(node);
-          posts.unshift(new Post(node, this.thread, this.thread.board));
+          nodes.push(node);
+          posts.push(new Post(node, this.thread, this.thread.board));
+        }
+        _ref = this.thread.posts;
+        for (i in _ref) {
+          post = _ref[i];
+          if (post.isDead) {
+            continue;
+          }
+          ID = post.ID;
+          if (-1 === index.indexOf(ID)) {
+            post.kill();
+          } else if (post.file && !post.file.isDead && -1 === image.indexOf(ID)) {
+            post.kill(true);
+          }
         }
         if (count) {
           this.set('status', "+" + count);

script.coffee

@@ -598,10 +598,18 @@ class Post
         @file.dimensions = @file.text.textContent.match(/\d+x\d+/)[0]
 
     @isReply = $.hasClass post, 'reply'
-    @isDead  = true if that.isArchived
+    @kill() if that.isArchived
     @clones  = []
     g.posts["#{board}.#{@}"] = thread.posts[@] = board.posts[@] = @
 
+  kill: (img) ->
+    if @file and !@file.isDead
+      @file.isDead = true
+    return if img
+    @isDead = true
+    $.addClass @nodes.root, 'dead'
+    # XXX style dead posts.
+    # XXX update quotelinks/backlinks to this post.
   addClone: (context) ->
     new Clone @, context
   rmClone: (index) ->
@@ -1577,6 +1585,8 @@ Quotify =
               className:   'quotelink deadlink'
               textContent: "#{quote}\u00A0(Dead)"
               target:      '_blank'
+            a.setAttribute 'data-board',  board
+            a.setAttribute 'data-postid', ID
           else
             # Don't (Dead) when quotifying in an archived post,
             # and we know the post still exists.
@@ -2246,7 +2256,7 @@ ThreadUpdater =
           else
             @unsuccessfulFetchCount++
             @set 'timer',  @getInterval()
-            @set 'status', @req.statusText
+            @set 'status', "#{@req.statusText} (#{@req.status})"
             @status.className = 'warning'
         delete @req
 
@@ -2291,18 +2301,33 @@ ThreadUpdater =
         headers: 'If-Modified-Since': @lastModified
 
     parse: (postObjects) ->
-      if spoilerRange = postObjects[0].custom_spoiler
-        Build.spoilerRange[@thread.board] = spoilerRange
+      Build.spoilerRange[@thread.board] = postObjects[0].custom_spoiler
 
-      nodes = []
-      posts = []
-      count = 0
-      for postObject in postObjects.reverse()
-        break if postObject.no <= @lastPost # Make sure to not insert older posts.
+      nodes = [] # post container elements
+      posts = [] # post objects
+      index = [] # existing posts
+      image = [] # existing images
+      count = 0  # new posts count
+      # Build the index, create posts.
+      for postObject in postObjects
+        num = postObject.no
+        index.push num
+        image.push num if postObject.ext
+        continue if num <= @lastPost
+        # Insert new posts, not older ones.
         count++
         node = Build.postFromObject postObject, @thread.board.ID
-        nodes.unshift node
-        posts.unshift new Post node, @thread, @thread.board
+        nodes.push node
+        posts.push new Post node, @thread, @thread.board
+
+      # Check for deleted posts and deleted images.
+      for i, post of @thread.posts
+        continue if post.isDead
+        {ID} = post
+        if -1 is index.indexOf ID
+          post.kill()
+        else if post.file and !post.file.isDead and -1 is image.indexOf ID
+          post.kill true
 
       if count
         @set 'status', "+#{count}"