degesch: allow hiding join/part messages

1 files changed, 38 insertions, 10 deletions

diff --git a/degesch.c b/degesch.c
index db66483..adc2c3e 100644
--- a/degesch.c
+++ b/degesch.c
@@ -1508,6 +1508,7 @@ struct buffer
 	unsigned new_messages_count;        ///< # messages since last left
 	unsigned new_unimportant_count;     ///< How much of that is unimportant
 	bool highlighted;                   ///< We've been highlighted
+	bool hide_unimportant;              ///< Hide unimportant messages
 
 	FILE *log_file;                     ///< Log file
 
@@ -3728,10 +3729,16 @@ buffer_line_write_time (struct formatter *f, struct buffer_line *line,
 		formatter_add (f, "#a#s#r ", ATTR_TIMESTAMP, buf);
 }
 
+#define buffer_line_will_show_up(buffer, line) \
+	(!(buffer)->hide_unimportant || !((line)->flags & BUFFER_LINE_UNIMPORTANT))
+
 static void
 buffer_line_display (struct app_context *ctx,
-	struct buffer_line *line, bool is_external)
+	struct buffer *buffer, struct buffer_line *line, bool is_external)
 {
+	if (!buffer_line_will_show_up (buffer, line))
+		return;
+
 	CALL (ctx->input, hide);
 
 	struct formatter f;
@@ -3825,9 +3832,9 @@ log_formatter (struct app_context *ctx,
 		// Another process is using the terminal
 		displayed = false;
 	else if (buffer == ctx->current_buffer)
-		buffer_line_display (ctx, line, false);
+		buffer_line_display (ctx, buffer, line, false);
 	else if (!ctx->isolate_buffers && can_leak)
-		buffer_line_display (ctx, line, true);
+		buffer_line_display (ctx, buffer, line, true);
 	else
 		displayed = false;
 
@@ -4050,9 +4057,6 @@ buffer_print_backlog (struct app_context *ctx, struct buffer *buffer)
 	// The prompt can take considerable time to redraw
 	CALL (ctx->input, hide);
 
-	// That is, minus the readline prompt
-	int display_limit = MAX (10, g_terminal.lines - 1);
-
 	// Simulate curses-like fullscreen buffers if the terminal allows it
 	if (g_terminal.initialized && clear_screen)
 	{
@@ -4080,10 +4084,19 @@ buffer_print_backlog (struct app_context *ctx, struct buffer *buffer)
 		free (buffer_name_localized);
 	}
 
-	struct buffer_line *line = buffer->lines_tail;
-	int to_display = line != NULL;
-	for (; line && line->prev && --display_limit > 0; line = line->prev)
+	// That is, minus the readline prompt
+	int display_limit = MAX (10, g_terminal.lines - 1);
+	int to_display = 0;
+
+	struct buffer_line *line;
+	for (line = buffer->lines_tail; line; line = line->prev)
+	{
 		to_display++;
+		if (buffer_line_will_show_up (buffer, line))
+			display_limit--;
+		if (!line->prev || display_limit <= 0)
+			break;
+	}
 
 	// Once we've found where we want to start with the backlog, print it
 	int until_marker = to_display - (int) buffer->new_messages_count;
@@ -4092,7 +4105,7 @@ buffer_print_backlog (struct app_context *ctx, struct buffer *buffer)
 		if (until_marker-- == 0
 		 && buffer->new_messages_count != buffer->lines_count)
 			buffer_print_read_marker (ctx, stdout, 0);
-		buffer_line_display (ctx, line, 0);
+		buffer_line_display (ctx, buffer, line, 0);
 	}
 
 	// So that it is obvious if the last line in the buffer is not from today
@@ -5827,6 +5840,8 @@ make_prompt (struct app_context *ctx, struct str *output)
 		if (buffer->channel->users_len)
 			str_append_printf (output, "{%zu}", buffer->channel->users_len);
 	}
+	if (buffer->hide_unimportant)
+		str_append (output, "<H>");
 
 	if (buffer != ctx->global_buffer)
 		make_server_postfix (buffer, output);
@@ -12311,6 +12326,17 @@ on_display_full_log (int count, int key, void *user_data)
 	return true;
 }
 
+static bool
+on_toggle_unimportant (int count, int key, void *user_data)
+{
+	(void) count;
+	(void) key;
+	struct app_context *ctx = user_data;
+	ctx->current_buffer->hide_unimportant ^= true;
+	buffer_print_backlog (ctx, ctx->current_buffer);
+	return true;
+}
+
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
 static bool
@@ -12471,6 +12497,7 @@ input_add_functions (void *user_data)
 	XX ("display-backlog",    "Show backlog",      on_display_backlog)
 	XX ("display-backlog-nw", "Non-wrapped log",   on_display_backlog_nowrap)
 	XX ("display-full-log",   "Show full log",     on_display_full_log)
+	XX ("toggle-unimportant", "Toggle junk msgs",  on_toggle_unimportant)
 	XX ("edit-input",         "Edit input",        on_edit_input)
 	XX ("redraw-screen",      "Redraw screen",     on_redraw_screen)
 	XX ("insert-attribute",   "mIRC formatting",   on_insert_attribute)
@@ -12494,6 +12521,7 @@ bind_common_keys (struct app_context *ctx)
 	CALL_ (self, bind_meta, 'a', "goto-activity");
 	CALL_ (self, bind_meta, 'm', "insert-attribute");
 	CALL_ (self, bind_meta, 'h', "display-full-log");
+	CALL_ (self, bind_meta, 'H', "toggle-unimportant");
 	CALL_ (self, bind_meta, 'e', "edit-input");
 
 	if (key_f5)     CALL_ (self, bind, key_f5, "previous-buffer");