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screencopy: send failed after output disconnect

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This prevents screencopy applications from hanging because a failed
event never got sent when the output was disconnected or disabled after
the call to buffer().
This commit is contained in:
Jason Francis 2019-07-27 19:31:37 -04:00 committed by Simon Ser
parent ce3e413e83
commit 724b5e1b8d
2 changed files with 30 additions and 0 deletions
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2
include/wlr/types/wlr_screencopy_v1.h
View file

@ -43,6 +43,8 @@ struct wlr_screencopy_frame_v1 {
struct wlr_output *output; struct wlr_output *output;
struct wl_listener output_precommit; struct wl_listener output_precommit;
struct wl_listener output_destroy;
struct wl_listener output_enable;
void *data; void *data;
}; };

28
types/wlr_screencopy_v1.c
View file

@ -31,6 +31,8 @@ static void frame_destroy(struct wlr_screencopy_frame_v1 *frame) {
} }
wl_list_remove(&frame->link); wl_list_remove(&frame->link);
wl_list_remove(&frame->output_precommit.link); wl_list_remove(&frame->output_precommit.link);
wl_list_remove(&frame->output_destroy.link);
wl_list_remove(&frame->output_enable.link);
wl_list_remove(&frame->buffer_destroy.link); wl_list_remove(&frame->buffer_destroy.link);
// Make the frame resource inert // Make the frame resource inert
wl_resource_set_user_data(frame->resource, NULL); wl_resource_set_user_data(frame->resource, NULL);
@ -88,6 +90,24 @@ static void frame_handle_output_precommit(struct wl_listener *listener,
frame_destroy(frame); frame_destroy(frame);
} }
static void frame_handle_output_enable(struct wl_listener *listener,
void *data) {
struct wlr_screencopy_frame_v1 *frame =
wl_container_of(listener, frame, output_enable);
if (!frame->output->enabled) {
zwlr_screencopy_frame_v1_send_failed(frame->resource);
frame_destroy(frame);
}
}
static void frame_handle_output_destroy(struct wl_listener *listener,
void *data) {
struct wlr_screencopy_frame_v1 *frame =
wl_container_of(listener, frame, output_destroy);
zwlr_screencopy_frame_v1_send_failed(frame->resource);
frame_destroy(frame);
}
static void frame_handle_buffer_destroy(struct wl_listener *listener, static void frame_handle_buffer_destroy(struct wl_listener *listener,
void *data) { void *data) {
struct wlr_screencopy_frame_v1 *frame = struct wlr_screencopy_frame_v1 *frame =
@ -145,6 +165,12 @@ static void frame_handle_copy(struct wl_client *client,
wl_signal_add(&output->events.precommit, &frame->output_precommit); wl_signal_add(&output->events.precommit, &frame->output_precommit);
frame->output_precommit.notify = frame_handle_output_precommit; frame->output_precommit.notify = frame_handle_output_precommit;
wl_signal_add(&output->events.destroy, &frame->output_enable);
frame->output_enable.notify = frame_handle_output_enable;
wl_signal_add(&output->events.destroy, &frame->output_destroy);
frame->output_destroy.notify = frame_handle_output_destroy;
wl_resource_add_destroy_listener(buffer_resource, &frame->buffer_destroy); wl_resource_add_destroy_listener(buffer_resource, &frame->buffer_destroy);
frame->buffer_destroy.notify = frame_handle_buffer_destroy; frame->buffer_destroy.notify = frame_handle_buffer_destroy;
@ -211,6 +237,8 @@ static void capture_output(struct wl_client *client,
wl_list_insert(&manager->frames, &frame->link); wl_list_insert(&manager->frames, &frame->link);
wl_list_init(&frame->output_precommit.link); wl_list_init(&frame->output_precommit.link);
wl_list_init(&frame->output_enable.link);
wl_list_init(&frame->output_destroy.link);
wl_list_init(&frame->buffer_destroy.link); wl_list_init(&frame->buffer_destroy.link);
if (output == NULL || !output->enabled) { if (output == NULL || !output->enabled) {