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wlr-data-device: offer set actions
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parent
3892acecac
commit
25831d287e
2 changed files with 104 additions and 3 deletions
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@ -11,6 +11,10 @@ struct wlr_data_offer {
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struct wl_resource *resource;
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struct wl_resource *resource;
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struct wlr_data_source *source;
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struct wlr_data_source *source;
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uint32_t dnd_actions;
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enum wl_data_device_manager_dnd_action preferred_dnd_action;
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bool in_ask;
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struct wl_listener source_destroy;
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struct wl_listener source_destroy;
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};
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};
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@ -22,8 +26,10 @@ struct wlr_data_source {
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bool accepted;
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bool accepted;
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// TODO
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// drag and drop
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//bool actions_set;
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enum wl_data_device_manager_dnd_action current_dnd_action;
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uint32_t dnd_actions;
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uint32_t compositor_action;
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struct {
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struct {
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struct wl_signal destroy;
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struct wl_signal destroy;
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@ -1,6 +1,7 @@
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#define _XOPEN_SOURCE 700
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#define _XOPEN_SOURCE 700
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#include <stdlib.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string.h>
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#include <strings.h>
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#include <assert.h>
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#include <assert.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <wayland-server.h>
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#include <wayland-server.h>
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@ -8,6 +9,11 @@
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#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_seat.h>
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#include <wlr/types/wlr_data_device.h>
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#include <wlr/types/wlr_data_device.h>
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#define ALL_ACTIONS (WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY | \
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WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE | \
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WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK)
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static void data_device_start_drag(struct wl_client *client, struct wl_resource
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static void data_device_start_drag(struct wl_client *client, struct wl_resource
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*resource, struct wl_resource *source_resource,
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*resource, struct wl_resource *source_resource,
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struct wl_resource *origin, struct wl_resource *icon, uint32_t serial) {
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struct wl_resource *origin, struct wl_resource *icon, uint32_t serial) {
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@ -92,10 +98,99 @@ static void data_offer_finish(struct wl_client *client,
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data_source_notify_finish(offer->source);
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data_source_notify_finish(offer->source);
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}
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}
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static uint32_t data_offer_choose_action(struct wlr_data_offer *offer) {
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uint32_t available_actions, preferred_action = 0;
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uint32_t source_actions, offer_actions;
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if (wl_resource_get_version(offer->resource) >=
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WL_DATA_OFFER_ACTION_SINCE_VERSION) {
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offer_actions = offer->dnd_actions;
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preferred_action = offer->preferred_dnd_action;
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} else {
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offer_actions = WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY;
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}
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if (wl_resource_get_version(offer->source->resource) >=
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WL_DATA_SOURCE_ACTION_SINCE_VERSION) {
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source_actions = offer->source->dnd_actions;
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} else {
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source_actions = WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY;
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}
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available_actions = offer_actions & source_actions;
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if (!available_actions) {
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return WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE;
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}
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if (offer->source->seat &&
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offer->source->compositor_action & available_actions) {
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return offer->source->compositor_action;
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}
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// If the dest side has a preferred DnD action, use it
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if ((preferred_action & available_actions) != 0) {
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return preferred_action;
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}
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// Use the first found action, in bit order
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return 1 << (ffs(available_actions) - 1);
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}
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static void data_offer_update_action(struct wlr_data_offer *offer) {
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uint32_t action;
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if (!offer->source) {
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return;
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}
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action = data_offer_choose_action(offer);
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if (offer->source->current_dnd_action == action) {
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return;
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}
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offer->source->current_dnd_action = action;
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if (offer->in_ask) {
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return;
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}
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if (wl_resource_get_version(offer->source->resource) >=
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WL_DATA_SOURCE_ACTION_SINCE_VERSION) {
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wl_data_source_send_action(offer->source->resource, action);
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}
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if (wl_resource_get_version(offer->resource) >=
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WL_DATA_OFFER_ACTION_SINCE_VERSION) {
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wl_data_offer_send_action(offer->resource, action);
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}
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}
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static void data_offer_set_actions(struct wl_client *client,
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static void data_offer_set_actions(struct wl_client *client,
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struct wl_resource *resource, uint32_t dnd_actions,
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struct wl_resource *resource, uint32_t dnd_actions,
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uint32_t preferred_action) {
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uint32_t preferred_action) {
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// TODO
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struct wlr_data_offer *offer = wl_resource_get_user_data(resource);
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if (dnd_actions & ~ALL_ACTIONS) {
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wl_resource_post_error(offer->resource,
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WL_DATA_OFFER_ERROR_INVALID_ACTION_MASK,
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"invalid action mask %x", dnd_actions);
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return;
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}
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if (preferred_action && (!(preferred_action & dnd_actions) ||
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__builtin_popcount(preferred_action) > 1)) {
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wl_resource_post_error(offer->resource,
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WL_DATA_OFFER_ERROR_INVALID_ACTION,
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"invalid action %x", preferred_action);
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return;
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}
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offer->dnd_actions = dnd_actions;
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offer->preferred_dnd_action = preferred_action;
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data_offer_update_action(offer);
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}
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}
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static void data_offer_resource_destroy(struct wl_resource *resource) {
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static void data_offer_resource_destroy(struct wl_resource *resource) {
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