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core: add relative move of read marker with /buffer set unread [+/-]N (closes #1895)

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This commit is contained in:
Sébastien Helleu
2023-03-20 20:38:24 +01:00
parent 8475b216a4
commit be64e8cddc
8 changed files with 129 additions and 32 deletions
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src/gui/gui-buffer.c
+101 -18
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@@ -2108,36 +2108,120 @@ gui_buffer_set_input_multiline (struct t_gui_buffer *buffer,
/*
* Sets unread marker for a buffer.
*
* If remove_marker == 1, then unread marker is removed, otherwise it's set
* after the last line.
* Argument is a string that can be:
* - empty string or NULL: set unread marker after the last line
* - "0": remove unread marker from buffer
* - "-N" or "+N" (N = integer): move the read marker
* (negative number: to older line, positive number: to newer line)
* - "N" (N = integer but not 0): mark N latest messages as unread
*/
void
gui_buffer_set_unread (struct t_gui_buffer *buffer, int remove_marker)
gui_buffer_set_unread (struct t_gui_buffer *buffer, const char *argument)
{
int refresh;
struct t_gui_line *old_last_read_line;
int i, old_first_line_not_read;
long number;
char *error;
if (!buffer || (buffer->type != GUI_BUFFER_TYPE_FORMATTED))
return;
if (remove_marker)
{
/* remove unread marker */
refresh = (buffer->lines->last_read_line != NULL);
buffer->lines->last_read_line = NULL;
buffer->lines->first_line_not_read = 0;
}
else
old_last_read_line = buffer->lines->last_read_line;
old_first_line_not_read = buffer->lines->first_line_not_read;
if (!argument || !argument[0])
{
/* set unread marker after last line */
refresh = ((buffer->lines->last_read_line != NULL)
&& (buffer->lines->last_read_line != buffer->lines->last_line));
buffer->lines->last_read_line = buffer->lines->last_line;
buffer->lines->first_line_not_read = (buffer->lines->last_read_line) ? 0 : 1;
}
else if (strcmp (argument, "0") == 0)
{
/* remove unread marker */
buffer->lines->last_read_line = NULL;
buffer->lines->first_line_not_read = 0;
}
else if (argument[0] == '-')
{
/* move the unread marker N lines towards the first line */
number = strtol (argument, &error, 10);
if (error && !error[0] && (number < 0))
{
for (i = 0; i > number; i--)
{
if (!buffer->lines->last_read_line)
{
if (!buffer->lines->last_line
|| buffer->lines->first_line_not_read)
{
break;
}
buffer->lines->last_read_line = buffer->lines->last_line;
}
if (!buffer->lines->last_read_line->prev_line)
{
buffer->lines->last_read_line = NULL;
buffer->lines->first_line_not_read = 1;
break;
}
buffer->lines->last_read_line = buffer->lines->last_read_line->prev_line;
}
}
}
else if (argument[0] == '+')
{
/* move the unread marker N lines towards the last line */
number = strtol (argument, &error, 10);
if (error && !error[0] && (number > 0))
{
for (i = 0; i < number; i++)
{
if (!buffer->lines->last_read_line)
{
if (!buffer->lines->first_line
|| !buffer->lines->first_line_not_read)
{
break;
}
buffer->lines->last_read_line = buffer->lines->first_line;
buffer->lines->first_line_not_read = 0;
continue;
}
buffer->lines->last_read_line = buffer->lines->last_read_line->next_line;
if (!buffer->lines->last_read_line)
break;
}
}
}
else
{
/* move the unread marker N lines from the end towards the first line */
number = strtol (argument, &error, 10);
if (error && !error[0] && (number > 0))
{
buffer->lines->last_read_line = buffer->lines->last_line;
buffer->lines->first_line_not_read = 0;
for (i = 0; i < number; i++)
{
if (!buffer->lines->last_read_line)
break;
if (!buffer->lines->last_read_line->prev_line)
{
buffer->lines->last_read_line = NULL;
buffer->lines->first_line_not_read = 1;
break;
}
buffer->lines->last_read_line = buffer->lines->last_read_line->prev_line;
}
}
}
if (refresh)
if ((old_last_read_line != buffer->lines->last_read_line
|| old_first_line_not_read != buffer->lines->first_line_not_read))
{
gui_buffer_ask_chat_refresh (buffer, 2);
}
}
/*
@@ -2148,7 +2232,7 @@ void
gui_buffer_set (struct t_gui_buffer *buffer, const char *property,
const char *value)
{
int gui_chat_mute_old, remove_marker;
int gui_chat_mute_old;
long number;
char *error;
const char *ptr_notify;
@@ -2195,8 +2279,7 @@ gui_buffer_set (struct t_gui_buffer *buffer, const char *property,
/* properties that need a buffer */
if (strcmp (property, "unread") == 0)
{
remove_marker = (strcmp (value, "0") == 0);
gui_buffer_set_unread (buffer, remove_marker);
gui_buffer_set_unread (buffer, value);
}
else if (strcmp (property, "display") == 0)
{