- reverted method of rendering of text in message window to a

line-based one.

The old method that packed text got from gemini stream in single event
was ugly and blocked the UI.

This version  revert to a line  by line rendering but  it is optimized
and does not gets slow with the size of the text the window holds.

src/gemini-viewer.lisp

@@ -384,11 +384,7 @@
                        (return-from download-loop nil))))
             (if (not (downloading-allowed-p wrapper-object))
                 (ui:notify (_ "Gemini document downloading aborted"))
-                (let ((compact-event (make-instance 'program-events:gemini-compact-lines-event
-                                                    :download-iri (download-iri wrapper-object)
-                                                    :priority
-                                                    program-events:+maximum-event-priority+)))
-                  (program-events:push-event compact-event)
+                (progn
                   (ui:notify (_ "Gemini document downloading completed"))
                   (setf (stream-status wrapper-object) :completed)))
             ;; (allow-downloading wrapper-object)

src/message-window.lisp

@@ -136,38 +136,41 @@
 
 (defgeneric search-regex (object regex))
 
-(defmethod prepare-for-rendering ((object message-window) &key (jump-to-first-row t))
+(defun text->rendered-lines-rows (window text)
   (flet ((fit-lines (lines)
            (let ((res ()))
              (loop for line in lines do
-                  (if (string-empty-p line)
-                      (push nil res)
-                      (loop
-                         for fitted-line in
-                           (flush-left-mono-text (split-words line)
-                                                 (win-width-no-border object))
-                         do
-                           (push fitted-line res))))
+               (if (string-empty-p line)
+                   (push nil res)
+                   (loop
+                     for fitted-line in
+                                     (flush-left-mono-text (split-words line)
+                                                           (win-width-no-border window))
+                     do
+                        (push fitted-line res))))
              (reverse res))))
-    (with-accessors ((source-text source-text)) object
-      (when hooks:*before-prepare-for-rendering-message*
-        (hooks:run-hook 'hooks:*before-prepare-for-rendering-message* object))
-      (let* ((lines        (split-lines source-text))
-             (fitted-lines (fit-lines lines))
-             (color-re     (swconf:color-regexps))
-             (new-rows     (loop for line in fitted-lines collect
-                                (let ((res line))
-                                  (loop for re in color-re do
-                                       (setf res (colorize-line res re)))
-                                  (colorized-line->tui-string res)))))
-        (setf (rows object)
-              (mapcar (lambda (text-line)
-                        (make-instance 'line
-                                       :normal-text text-line))
-                      new-rows))
-        (when jump-to-first-row
-          (select-row object 0))
-        object))))
+    (let* ((lines        (split-lines text))
+           (fitted-lines (fit-lines lines))
+           (color-re     (swconf:color-regexps))
+           (new-rows     (loop for line in fitted-lines collect
+                           (let ((res line))
+                             (loop for re in color-re do
+                               (setf res (colorize-line res re)))
+                             (colorized-line->tui-string res)))))
+      (mapcar (lambda (text-line)
+                (make-instance 'line
+                               :normal-text text-line))
+              new-rows))))
+
+(defmethod prepare-for-rendering ((object message-window) &key (jump-to-first-row t))
+  (with-accessors ((source-text source-text)) object
+    (when hooks:*before-prepare-for-rendering-message*
+      (hooks:run-hook 'hooks:*before-prepare-for-rendering-message* object))
+    (setf (rows object)
+          (text->rendered-lines-rows object source-text))
+    (when jump-to-first-row
+      (select-row object 0))
+    object))
 
 (defmethod append-source-text ((object message-window) text
                                &key

src/package.lisp

@@ -1905,6 +1905,7 @@
    :gemini-window-p
    :display-gemini-text-p
    :display-chat-p
+   :text->rendered-lines-rows
    :prepare-for-display-status-mode
    :append-source-text
    :scroll-down

src/program-events.lisp

@@ -1028,10 +1028,16 @@
   (let* ((win specials:*message-window*)
          (window-metadata (message-window:metadata win)))
     (if append-text
-        (progn
-          (message-window:append-source-text win rendered-text :prepare-for-rendering t)
-          (gemini-viewer:append-metadata-link window-metadata links)
-          (gemini-viewer:append-metadata-source window-metadata source))
+        (with-accessors ((rows message-window::rows)) win
+          (let ((new-rows      (message-window:text->rendered-lines-rows win
+                                                                         rendered-text))
+                (reversed-rows (reverse rows)))
+            (message-window:append-source-text win rendered-text :prepare-for-rendering nil)
+            (gemini-viewer:append-metadata-link window-metadata links)
+            (gemini-viewer:append-metadata-source window-metadata source)
+            (loop for new-row in new-rows do
+              (push new-row reversed-rows))
+            (setf rows (reverse reversed-rows))))
         (progn
           (setf (message-window:source-text win) rendered-text)
           (setf (gemini-viewer:gemini-metadata-source-file window-metadata) source)