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data-device: redesign wlr_data_source

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master
emersion 7 years ago
parent 79dd4a0ff9
commit d5f46f4db4
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GPG Key ID: 0FDE7BE0E88F5E48
3 changed files with 193 additions and 73 deletions
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82
include/wlr/types/wlr_data_device.h
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@ -30,23 +30,29 @@ struct wlr_data_offer {
struct wl_listener source_destroy;
};
struct wlr_data_source {
// source metadata
struct wl_array mime_types;
int32_t actions;
// source implementation
/**
* A data source implementation. Only the `send` function is mandatory. Refer to
* the matching wl_data_source_* functions documentation to know what they do.
*/
struct wlr_data_source_impl {
void (*send)(struct wlr_data_source *source, const char *mime_type,
int32_t fd);
void (*accept)(struct wlr_data_source *source, uint32_t serial,
const char *mime_type);
void (*cancel)(struct wlr_data_source *source);
// drag'n'drop implementation
void (*dnd_drop)(struct wlr_data_source *source);
void (*dnd_finish)(struct wlr_data_source *source);
void (*dnd_action)(struct wlr_data_source *source,
enum wl_data_device_manager_dnd_action action);
};
struct wlr_data_source {
const struct wlr_data_source_impl *impl;
// source metadata
struct wl_array mime_types;
int32_t actions;
// source status
bool accepted;
@ -128,7 +134,7 @@ struct wlr_drag_drop_event {
* Create a wl data device manager global for this display.
*/
struct wlr_data_device_manager *wlr_data_device_manager_create(
struct wl_display *display);
struct wl_display *display);
/**
* Destroys a wlr_data_device_manager and removes its wl_data_device_manager global.
@ -144,11 +150,67 @@ void wlr_data_device_manager_destroy(struct wlr_data_device_manager *manager);
*/
void wlr_seat_client_send_selection(struct wlr_seat_client *seat_client);
/**
* Sets the current selection for the seat. This removes the previous one if
* there was any.
*/
void wlr_seat_set_selection(struct wlr_seat *seat,
struct wlr_data_source *source, uint32_t serial);
struct wlr_data_source *source, uint32_t serial);
void wlr_data_source_init(struct wlr_data_source *source);
/**
* Initializes the data source with the provided implementation.
*/
void wlr_data_source_init(struct wlr_data_source *source,
const struct wlr_data_source_impl *impl);
/**
* Finishes the data source.
*/
void wlr_data_source_finish(struct wlr_data_source *source);
/**
* Sends the data as the specified MIME type over the passed file descriptor,
* then close it.
*/
void wlr_data_source_send(struct wlr_data_source *source, const char *mime_type,
int32_t fd);
/**
* Notifies the data source that a target accepts one of the offered MIME types.
* If a target doesn't accept any of the offered types, `mime_type` is NULL.
*/
void wlr_data_source_accept(struct wlr_data_source *source, uint32_t serial,
const char *mime_type);
/**
* Notifies the data source it is no longer valid and should be destroyed. That
* potentially destroys immediately the data source.
*/
void wlr_data_source_cancel(struct wlr_data_source *source);
/**
* Notifies the data source that the drop operation was performed. This does not
* indicate acceptance.
*
* The data source may still be used in the future and should not be destroyed
* here.
*/
void wlr_data_source_dnd_drop(struct wlr_data_source *source);
/**
* Notifies the data source that the drag-and-drop operation concluded. That
* potentially destroys immediately the data source.
*/
void wlr_data_source_dnd_finish(struct wlr_data_source *source);
/**
* Notifies the data source that a target accepts the drag with the specified
* action.
*
* This shouldn't be called after `wlr_data_source_dnd_drop` unless the
* drag-and-drop operation ended in an "ask" action.
*/
void wlr_data_source_dnd_action(struct wlr_data_source *source,
enum wl_data_device_manager_dnd_action action);
#endif

180
types/wlr_data_device.c
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@ -84,9 +84,7 @@ static void data_offer_update_action(struct wlr_data_offer *offer) {
return;
}
if (offer->source->dnd_action) {
offer->source->dnd_action(offer->source, action);
}
wlr_data_source_dnd_action(offer->source, action);
if (wl_resource_get_version(offer->resource) >=
WL_DATA_OFFER_ACTION_SINCE_VERSION) {
@ -104,10 +102,7 @@ static void data_offer_accept(struct wl_client *client,
// TODO check that client is currently focused by the input device
if (offer->source->accept) {
offer->source->accept(offer->source, serial, mime_type);
}
offer->source->accepted = (mime_type != NULL);
wlr_data_source_accept(offer->source, serial, mime_type);
}
static void data_offer_receive(struct wl_client *client,
@ -115,7 +110,7 @@ static void data_offer_receive(struct wl_client *client,
struct wlr_data_offer *offer = data_offer_from_resource(resource);
if (offer->source && offer == offer->source->offer) {
offer->source->send(offer->source, mime_type, fd);
wlr_data_source_send(offer->source, mime_type, fd);
} else {
close(fd);
}
@ -131,15 +126,12 @@ static void data_source_notify_finish(struct wlr_data_source *source) {
return;
}
if (source->offer->in_ask && source->dnd_action) {
source->dnd_action(source, source->current_dnd_action);
}
if (source->dnd_finish) {
source->dnd_finish(source);
if (source->offer->in_ask) {
wlr_data_source_dnd_action(source, source->current_dnd_action);
}
source->offer = NULL;
wlr_data_source_dnd_finish(source);
}
static void data_offer_finish(struct wl_client *client,
@ -199,10 +191,10 @@ static void data_offer_resource_destroy(struct wl_resource *resource) {
WL_DATA_OFFER_ACTION_SINCE_VERSION) {
data_source_notify_finish(offer->source);
offer->source->offer = NULL;
} else if (offer->source->dnd_finish) {
} else if (offer->source->impl->dnd_finish) {
// source->cancel can free the source
offer->source->offer = NULL;
offer->source->cancel(offer->source);
wlr_data_source_cancel(offer->source);
} else {
offer->source->offer = NULL;
}
@ -314,20 +306,15 @@ static void seat_client_selection_source_destroy(
void wlr_seat_set_selection(struct wlr_seat *seat,
struct wlr_data_source *source, uint32_t serial) {
if (source) {
assert(source->send);
assert(source->cancel);
}
if (seat->selection_source &&
seat->selection_serial - serial < UINT32_MAX / 2) {
return;
}
if (seat->selection_source) {
seat->selection_source->cancel(seat->selection_source);
seat->selection_source = NULL;
wl_list_remove(&seat->selection_source_destroy.link);
wlr_data_source_cancel(seat->selection_source);
seat->selection_source = NULL;
}
seat->selection_source = source;
@ -533,9 +520,7 @@ static uint32_t pointer_drag_button(struct wlr_seat_pointer_grab *grab,
wl_resource_for_each(resource, &drag->focus_client->data_devices) {
wl_data_device_send_drop(resource);
}
if (drag->source->dnd_drop) {
drag->source->dnd_drop(drag->source);
}
wlr_data_source_dnd_drop(drag->source);
if (drag->source->offer != NULL) {
drag->source->offer->in_ask =
@ -548,8 +533,8 @@ static uint32_t pointer_drag_button(struct wlr_seat_pointer_grab *grab,
.time = time,
};
wlr_signal_emit_safe(&drag->events.drop, &event);
} else if (drag->source->dnd_finish) {
drag->source->cancel(drag->source);
} else if (drag->source->impl->dnd_finish) {
wlr_data_source_cancel(drag->source);
}
}
@ -899,36 +884,51 @@ static void data_device_destroy(struct wl_resource *resource) {
struct client_data_source {
struct wlr_data_source source;
struct wlr_data_source_impl impl;
struct wl_resource *resource;
};
static void client_data_source_accept(struct wlr_data_source *wlr_source,
uint32_t serial, const char *mime_type);
static struct client_data_source *client_data_source_from_wlr_data_source(
struct wlr_data_source *wlr_source) {
assert(wlr_source->impl->accept == client_data_source_accept);
return (struct client_data_source *)wlr_source;
}
static void client_data_source_accept(struct wlr_data_source *wlr_source,
uint32_t serial, const char *mime_type) {
struct client_data_source *source = (struct client_data_source *)wlr_source;
struct client_data_source *source =
client_data_source_from_wlr_data_source(wlr_source);
wl_data_source_send_target(source->resource, mime_type);
}
static void client_data_source_send(struct wlr_data_source *wlr_source,
const char *mime_type, int32_t fd) {
struct client_data_source *source = (struct client_data_source *)wlr_source;
struct client_data_source *source =
client_data_source_from_wlr_data_source(wlr_source);
wl_data_source_send_send(source->resource, mime_type, fd);
close(fd);
}
static void client_data_source_cancel(struct wlr_data_source *wlr_source) {
struct client_data_source *source = (struct client_data_source *)wlr_source;
struct client_data_source *source =
client_data_source_from_wlr_data_source(wlr_source);
wl_data_source_send_cancelled(source->resource);
}
static void client_data_source_dnd_drop(struct wlr_data_source *wlr_source) {
struct client_data_source *source = (struct client_data_source *)wlr_source;
struct client_data_source *source =
client_data_source_from_wlr_data_source(wlr_source);
assert(wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_DND_DROP_PERFORMED_SINCE_VERSION);
wl_data_source_send_dnd_drop_performed(source->resource);
}
static void client_data_source_dnd_finish(struct wlr_data_source *wlr_source) {
struct client_data_source *source = (struct client_data_source *)wlr_source;
struct client_data_source *source =
client_data_source_from_wlr_data_source(wlr_source);
assert(wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_DND_FINISHED_SINCE_VERSION);
wl_data_source_send_dnd_finished(source->resource);
@ -936,7 +936,8 @@ static void client_data_source_dnd_finish(struct wlr_data_source *wlr_source) {
static void client_data_source_dnd_action(struct wlr_data_source *wlr_source,
enum wl_data_device_manager_dnd_action action) {
struct client_data_source *source = (struct client_data_source *)wlr_source;
struct client_data_source *source =
client_data_source_from_wlr_data_source(wlr_source);
assert(wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_ACTION_SINCE_VERSION);
wl_data_source_send_action(source->resource, action);
@ -947,6 +948,37 @@ static void data_source_destroy(struct wl_client *client,
wl_resource_destroy(resource);
}
static struct client_data_source *client_data_source_create(
struct wl_resource *source_resource) {
struct client_data_source *source =
calloc(1, sizeof(struct client_data_source));
if (source == NULL) {
return NULL;
}
source->resource = source_resource;
source->impl.accept = client_data_source_accept;
source->impl.send = client_data_source_send;
source->impl.cancel = client_data_source_cancel;
if (wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_DND_DROP_PERFORMED_SINCE_VERSION) {
source->impl.dnd_drop = client_data_source_dnd_drop;
}
if (wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_DND_FINISHED_SINCE_VERSION) {
source->impl.dnd_finish = client_data_source_dnd_finish;
}
if (wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_ACTION_SINCE_VERSION) {
source->impl.dnd_action = client_data_source_dnd_action;
}
wlr_data_source_init(&source->source, &source->impl);
return source;
}
static void data_source_set_actions(struct wl_client *client,
struct wl_resource *resource, uint32_t dnd_actions) {
struct client_data_source *source =
@ -1007,7 +1039,11 @@ static void data_source_resource_handle_destroy(struct wl_resource *resource) {
free(source);
}
void wlr_data_source_init(struct wlr_data_source *source) {
void wlr_data_source_init(struct wlr_data_source *source,
const struct wlr_data_source_impl *impl) {
assert(impl->send);
source->impl = impl;
wl_array_init(&source->mime_types);
wl_signal_init(&source->events.destroy);
source->actions = -1;
@ -1027,6 +1063,45 @@ void wlr_data_source_finish(struct wlr_data_source *source) {
wl_array_release(&source->mime_types);
}
void wlr_data_source_send(struct wlr_data_source *source, const char *mime_type,
int32_t fd) {
source->impl->send(source, mime_type, fd);
}
void wlr_data_source_accept(struct wlr_data_source *source, uint32_t serial,
const char *mime_type) {
source->accepted = (mime_type != NULL);
if (source->impl->accept) {
source->impl->accept(source, serial, mime_type);
}
}
void wlr_data_source_cancel(struct wlr_data_source *source) {
if (source->impl->cancel) {
source->impl->cancel(source);
}
}
void wlr_data_source_dnd_drop(struct wlr_data_source *source) {
if (source->impl->dnd_drop) {
source->impl->dnd_drop(source);
}
}
void wlr_data_source_dnd_finish(struct wlr_data_source *source) {
if (source->impl->dnd_finish) {
source->impl->dnd_finish(source);
}
}
void wlr_data_source_dnd_action(struct wlr_data_source *source,
enum wl_data_device_manager_dnd_action action) {
source->current_dnd_action = action;
if (source->impl->dnd_action) {
source->impl->dnd_action(source, action);
}
}
void data_device_manager_get_data_device(struct wl_client *client,
struct wl_resource *manager_resource, uint32_t id,
@ -1048,40 +1123,23 @@ void data_device_manager_get_data_device(struct wl_client *client,
static void data_device_manager_create_data_source(struct wl_client *client,
struct wl_resource *resource, uint32_t id) {
struct client_data_source *source =
calloc(1, sizeof(struct client_data_source));
if (source == NULL) {
struct wl_resource *source_resource = wl_resource_create(client,
&wl_data_source_interface, wl_resource_get_version(resource), id);
if (source_resource == NULL) {
wl_resource_post_no_memory(resource);
return;
}
wlr_data_source_init(&source->source);
source->resource = wl_resource_create(client, &wl_data_source_interface,
wl_resource_get_version(resource), id);
if (source->resource == NULL) {
free(source);
struct client_data_source *source =
client_data_source_create(source_resource);
if (source == NULL) {
wl_resource_destroy(source_resource);
wl_resource_post_no_memory(resource);
return;
}
wl_resource_set_implementation(source->resource, &data_source_impl,
source, data_source_resource_handle_destroy);
source->source.accept = client_data_source_accept;
source->source.send = client_data_source_send;
source->source.cancel = client_data_source_cancel;
if (wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_DND_DROP_PERFORMED_SINCE_VERSION) {
source->source.dnd_drop = client_data_source_dnd_drop;
}
if (wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_DND_FINISHED_SINCE_VERSION) {
source->source.dnd_finish = client_data_source_dnd_finish;
}
if (wl_resource_get_version(source->resource) >=
WL_DATA_SOURCE_ACTION_SINCE_VERSION) {
source->source.dnd_action = client_data_source_dnd_action;
}
wl_resource_set_implementation(source_resource, &data_source_impl,
source, data_source_resource_handle_destroy);
}
static const struct wl_data_device_manager_interface

4
types/wlr_seat.c
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@ -366,9 +366,9 @@ void wlr_seat_destroy(struct wlr_seat *seat) {
wl_list_remove(&seat->display_destroy.link);
if (seat->selection_source) {
seat->selection_source->cancel(seat->selection_source);
seat->selection_source = NULL;
wl_list_remove(&seat->selection_source_destroy.link);
wlr_data_source_cancel(seat->selection_source);
seat->selection_source = NULL;
}
if (seat->primary_selection_source) {
seat->primary_selection_source->cancel(seat->primary_selection_source);

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