xP: fix automatic scrolling down

Showing channel logs cancelled the AbortController forever.
Thus store it within vnodes.

xC.c

@@ -4612,34 +4612,30 @@ log_formatter (struct app_context *ctx, struct buffer *buffer,
 		&& buffer->type == BUFFER_SERVER)
 	 || (ctx->current_buffer->type != BUFFER_GLOBAL
 		&& buffer == ctx->current_buffer->server->buffer))
-		can_leak = true;
+		can_leak = !ctx->isolate_buffers;
 
-	relay_prepare_buffer_line (ctx, buffer, line,
-		buffer != ctx->current_buffer && !ctx->isolate_buffers && can_leak);
+	bool leak_to_active = buffer != ctx->current_buffer && can_leak;
+	relay_prepare_buffer_line (ctx, buffer, line, leak_to_active);
 	relay_broadcast (ctx);
 
-	bool displayed = true;
-	if (ctx->terminal_suspended > 0)
-		// Another process is using the terminal
-		displayed = false;
-	else if (buffer == ctx->current_buffer)
-		buffer_line_display (ctx, buffer, line, false);
-	else if (!ctx->isolate_buffers && can_leak)
-		buffer_line_display (ctx, buffer, line, true);
-	else
-		displayed = false;
+	bool visible = (buffer == ctx->current_buffer || leak_to_active)
+		&& ctx->terminal_suspended <= 0;
 
-	// Advance the unread marker in active buffers but don't create a new one
-	if (!displayed
-	 || (buffer == ctx->current_buffer && buffer->new_messages_count))
+	// Advance the unread marker but don't create a new one
+	if (!visible || buffer->new_messages_count)
 	{
 		buffer->new_messages_count++;
-		if (flags & BUFFER_LINE_UNIMPORTANT)
+		if ((flags & BUFFER_LINE_UNIMPORTANT) || leak_to_active)
 			buffer->new_unimportant_count++;
-		buffer->highlighted |= important;
 	}
-	if (!displayed)
+
+	if (visible)
+		buffer_line_display (ctx, buffer, line, leak_to_active);
+	else
+	{
+		buffer->highlighted |= important;
 		refresh_prompt (ctx);
+	}
 }
 
 static void

xP/public/xP.js

@@ -288,7 +288,7 @@ rpcEventHandlers.set(Relay.Event.BufferLine, e => {
 	b.lines.push({...line})
 	if (!(visible || e.leakToActive) ||
 			b.newMessages || b.newUnimportantMessages) {
-		if (line.isUnimportant)
+		if (line.isUnimportant || e.leakToActive)
 			b.newUnimportantMessages++
 		else
 			b.newMessages++
@@ -566,12 +566,6 @@ let Topic = {
 }
 
 let Buffer = {
-	controller: new AbortController(),
-
-	onbeforeremove: vnode => {
-		Buffer.controller.abort()
-	},
-
 	onupdate: vnode => {
 		if (bufferAutoscroll)
 			vnode.dom.scrollTop = vnode.dom.scrollHeight
@@ -579,8 +573,14 @@ let Buffer = {
 
 	oncreate: vnode => {
 		Buffer.onupdate(vnode)
+
+		vnode.state.controller = new AbortController()
 		window.addEventListener('resize', event => Buffer.onupdate(vnode),
-			{signal: Buffer.controller.signal})
+			{signal: vnode.state.controller.signal})
+	},
+
+	onremove: vnode => {
+		vnode.state.controller.abort()
 	},
 
 	view: vnode => {