i3bar: count references to blocks

This prevents blocks from being destroyed before their hotspots are destroyed,
in case it is used for a pending click event that fires between the bar
receiving a new status, which destroys the block, and the bar rendering the new
status, which destroys the hotspot; this problem can be easily produced by
scrolling on a block that immediately causes a new status to be sent, with
multiple outputs
This commit is contained in:
Ian Fan 2018-09-12 08:28:28 +01:00
parent af9e8f94cc
commit 2eaef80206
4 changed files with 19 additions and 6 deletions

View file

@ -36,6 +36,7 @@ struct i3bar_protocol_state {
struct i3bar_block {
struct wl_list link;
int ref_count;
char *full_text, *short_text, *align;
bool urgent;
uint32_t *color;
@ -73,7 +74,7 @@ void status_line_free(struct status_line *status);
bool i3bar_handle_readable(struct status_line *status);
enum hotspot_event_handling i3bar_block_send_click(struct status_line *status,
struct i3bar_block *block, int x, int y, enum x11_button button);
void i3bar_block_free(struct i3bar_block *block);
void i3bar_block_unref(struct i3bar_block *block);
enum x11_button wl_button_to_x11_button(uint32_t button);
enum x11_button wl_axis_to_x11_button(uint32_t axis, wl_fixed_t value);