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data-device, primary-selection: add request_set_selection

Browse source 
This makes compositors able to block and/or customize set_selection requests
coming from clients. For instance, it's possible for a compositor to disable
rich selection content (by removing all MIME types except text/plain). This
commit implements the design proposed in [1].

Two new events are added to wlr_seat: request_set_selection and
request_set_primary_selection. Compositors need to listen to these events and
either destroy the source or effectively set the selection.

Fixes https://github.com/swaywm/wlroots/issues/1138

[1]: https://github.com/swaywm/wlroots/issues/1367#issuecomment-442403454
This commit is contained in:
emersion 2018-11-29 19:30:04 +01:00
parent c41d01306d
commit 4cb0697e57
15 changed files with 142 additions and 63 deletions
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2
include/rootston/seat.h
View file

@ -38,6 +38,8 @@ struct roots_seat {
struct wl_list tablets;
struct wl_list tablet_pads;
struct wl_listener request_set_selection;
struct wl_listener request_set_primary_selection;
struct wl_listener new_drag_icon;
struct wl_listener destroy;
};

2
include/wlr/types/wlr_data_control_v1.h
View file

@ -34,7 +34,7 @@ struct wlr_data_control_device_v1 {
struct wl_resource *selection_offer_resource; // current selection offer
struct wl_listener seat_destroy;
struct wl_listener seat_selection;
struct wl_listener seat_set_selection;
};
struct wlr_data_control_manager_v1 *wlr_data_control_manager_v1_create(

6
include/wlr/types/wlr_data_device.h
View file

@ -165,6 +165,12 @@ void wlr_data_device_manager_destroy(struct wlr_data_device_manager *manager);
*/
void wlr_seat_client_send_selection(struct wlr_seat_client *seat_client);
/**
* Requests a selection to be set for the seat.
*/
void wlr_seat_request_set_selection(struct wlr_seat *seat,
struct wlr_data_source *source, uint32_t serial);
/**
* Sets the current selection for the seat. NULL can be provided to clear it.
* This removes the previous one if there was any. In case the selection doesn't

2
include/wlr/types/wlr_gtk_primary_selection.h
View file

@ -39,7 +39,7 @@ struct wlr_gtk_primary_selection_device {
struct wl_listener seat_destroy;
struct wl_listener seat_focus_change;
struct wl_listener seat_primary_selection;
struct wl_listener seat_set_primary_selection;
void *data;
};

2
include/wlr/types/wlr_primary_selection.h
View file

@ -48,6 +48,8 @@ void wlr_primary_selection_source_send(
struct wlr_primary_selection_source *source, const char *mime_type,
int fd);
void wlr_seat_request_set_primary_selection(struct wlr_seat *seat,
struct wlr_primary_selection_source *source, uint32_t serial);
/**
* Sets the current primary selection for the seat. NULL can be provided to
* clear it. This removes the previous one if there was any. In case the

26
include/wlr/types/wlr_seat.h
View file

@ -23,6 +23,7 @@
struct wlr_seat_client {
struct wl_client *client;
struct wlr_seat *seat;
struct wl_list link;
// lists of wl_resource
struct wl_list resources;
@ -34,8 +35,6 @@ struct wlr_seat_client {
struct {
struct wl_signal destroy;
} events;
struct wl_list link;
};
struct wlr_touch_point {
@ -226,13 +225,18 @@ struct wlr_seat {
struct wl_signal touch_grab_begin;
struct wl_signal touch_grab_end;
// wlr_seat_pointer_request_set_cursor_event
struct wl_signal request_set_cursor;
struct wl_signal selection;
struct wl_signal primary_selection;
// wlr_seat_request_set_selection_event
struct wl_signal request_set_selection;
struct wl_signal set_selection;
// wlr_seat_request_set_primary_selection_event
struct wl_signal request_set_primary_selection;
struct wl_signal set_primary_selection;
struct wl_signal start_drag;
struct wl_signal new_drag_icon;
struct wl_signal start_drag; // wlr_drag
struct wl_signal new_drag_icon; // wlr_drag_icon
struct wl_signal destroy;
} events;
@ -247,6 +251,16 @@ struct wlr_seat_pointer_request_set_cursor_event {
int32_t hotspot_x, hotspot_y;
};
struct wlr_seat_request_set_selection_event {
struct wlr_data_source *source;
uint32_t serial;
};
struct wlr_seat_request_set_primary_selection_event {
struct wlr_primary_selection_source *source;
uint32_t serial;
};
struct wlr_seat_pointer_focus_change_event {
struct wlr_seat *seat;
struct wlr_surface *old_surface, *new_surface;

4
include/xwayland/xwm.h
View file

@ -128,8 +128,8 @@ struct wlr_xwm {
struct wl_listener compositor_new_surface;
struct wl_listener compositor_destroy;
struct wl_listener seat_selection;
struct wl_listener seat_primary_selection;
struct wl_listener seat_set_selection;
struct wl_listener seat_set_primary_selection;
struct wl_listener seat_start_drag;
struct wl_listener seat_drag_focus;
struct wl_listener seat_drag_motion;

29
rootston/seat.c
View file

@ -7,9 +7,11 @@
#include <wayland-server.h>
#include <wlr/backend/libinput.h>
#include <wlr/config.h>
#include <wlr/types/wlr_data_device.h>
#include <wlr/types/wlr_idle.h>
#include <wlr/types/wlr_layer_shell_v1.h>
#include "wlr/types/wlr_switch.h"
#include <wlr/types/wlr_primary_selection.h>
#include <wlr/types/wlr_switch.h>
#include <wlr/types/wlr_tablet_v2.h>
#include <wlr/types/wlr_xcursor_manager.h>
#include <wlr/util/log.h>
@ -20,7 +22,6 @@
#include "rootston/text_input.h"
#include "rootston/xcursor.h"
static void handle_keyboard_key(struct wl_listener *listener, void *data) {
struct roots_keyboard *keyboard =
wl_container_of(listener, keyboard, keyboard_key);
@ -536,6 +537,22 @@ static void roots_seat_handle_new_drag_icon(struct wl_listener *listener,
roots_drag_icon_update_position(icon);
}
static void roots_seat_handle_request_set_selection(
struct wl_listener *listener, void *data) {
struct roots_seat *seat =
wl_container_of(listener, seat, request_set_selection);
struct wlr_seat_request_set_selection_event *event = data;
wlr_seat_set_selection(seat->seat, event->source, event->serial);
}
static void roots_seat_handle_request_set_primary_selection(
struct wl_listener *listener, void *data) {
struct roots_seat *seat =
wl_container_of(listener, seat, request_set_primary_selection);
struct wlr_seat_request_set_primary_selection_event *event = data;
wlr_seat_set_primary_selection(seat->seat, event->source, event->serial);
}
void roots_drag_icon_update_position(struct roots_drag_icon *icon) {
roots_drag_icon_damage_whole(icon);
@ -621,6 +638,14 @@ struct roots_seat *roots_seat_create(struct roots_input *input, char *name) {
wl_list_insert(&input->seats, &seat->link);
seat->request_set_selection.notify =
roots_seat_handle_request_set_selection;
wl_signal_add(&seat->seat->events.request_set_selection,
&seat->request_set_selection);
seat->request_set_primary_selection.notify =
roots_seat_handle_request_set_primary_selection;
wl_signal_add(&seat->seat->events.request_set_primary_selection,
&seat->request_set_primary_selection);
seat->new_drag_icon.notify = roots_seat_handle_new_drag_icon;
wl_signal_add(&seat->seat->events.new_drag_icon, &seat->new_drag_icon);
seat->destroy.notify = roots_seat_handle_destroy;

40
types/data_device/wlr_data_device.c
View file

@ -32,13 +32,13 @@ static void data_device_set_selection(struct wl_client *client,
source = client_data_source_from_resource(source_resource);
}
struct wlr_data_source *wlr_source =
source != NULL ? &source->source : NULL;
wlr_seat_set_selection(seat_client->seat, wlr_source, serial);
if (source != NULL) {
source->finalized = true;
}
struct wlr_data_source *wlr_source =
source != NULL ? &source->source : NULL;
wlr_seat_request_set_selection(seat_client->seat, wlr_source, serial);
}
static void data_device_start_drag(struct wl_client *client,
@ -116,7 +116,23 @@ void wlr_seat_client_send_selection(struct wlr_seat_client *seat_client) {
}
}
static void seat_client_selection_source_destroy(
void wlr_seat_request_set_selection(struct wlr_seat *seat,
struct wlr_data_source *source, uint32_t serial) {
if (seat->selection_source &&
seat->selection_serial - serial < UINT32_MAX / 2) {
wlr_log(WLR_DEBUG, "Rejecting set_selection request, invalid serial "
"(%"PRIu32" <= %"PRIu32")", serial, seat->selection_serial);
return;
}
struct wlr_seat_request_set_selection_event event = {
.source = source,
.serial = serial,
};
wlr_signal_emit_safe(&seat->events.request_set_selection, &event);
}
static void seat_handle_selection_source_destroy(
struct wl_listener *listener, void *data) {
struct wlr_seat *seat =
wl_container_of(listener, seat, selection_source_destroy);
@ -132,16 +148,11 @@ static void seat_client_selection_source_destroy(
}
}
wlr_signal_emit_safe(&seat->events.selection, seat);
wlr_signal_emit_safe(&seat->events.set_selection, seat);
}
void wlr_seat_set_selection(struct wlr_seat *seat,
struct wlr_data_source *source, uint32_t serial) {
if (seat->selection_source &&
seat->selection_serial - serial < UINT32_MAX / 2) {
return;
}
if (seat->selection_source) {
wl_list_remove(&seat->selection_source_destroy.link);
wlr_data_source_cancel(seat->selection_source);
@ -153,19 +164,18 @@ void wlr_seat_set_selection(struct wlr_seat *seat,
struct wlr_seat_client *focused_client =
seat->keyboard_state.focused_client;
if (focused_client) {
wlr_seat_client_send_selection(focused_client);
}
wlr_signal_emit_safe(&seat->events.selection, seat);
if (source) {
seat->selection_source_destroy.notify =
seat_client_selection_source_destroy;
seat_handle_selection_source_destroy;
wl_signal_add(&source->events.destroy,
&seat->selection_source_destroy);
}
wlr_signal_emit_safe(&seat->events.set_selection, seat);
}

6
types/seat/wlr_seat.c
View file

@ -274,8 +274,10 @@ struct wlr_seat *wlr_seat_create(struct wl_display *display, const char *name) {
wl_signal_init(&seat->events.request_set_cursor);
wl_signal_init(&seat->events.selection);
wl_signal_init(&seat->events.primary_selection);
wl_signal_init(&seat->events.request_set_selection);
wl_signal_init(&seat->events.set_selection);
wl_signal_init(&seat->events.request_set_primary_selection);
wl_signal_init(&seat->events.set_primary_selection);
wl_signal_init(&seat->events.pointer_grab_begin);
wl_signal_init(&seat->events.pointer_grab_end);

16
types/wlr_data_control_v1.c
View file

@ -184,9 +184,8 @@ static void control_handle_set_selection(struct wl_client *client,
}
struct wlr_data_source *wlr_source = source ? &source->source : NULL;
struct wl_display *display = wl_client_get_display(client);
wlr_seat_set_selection(device->seat, wlr_source,
wl_display_next_serial(display));
wlr_seat_request_set_selection(device->seat, wlr_source,
wl_display_next_serial(device->seat->display));
}
static void control_handle_destroy(struct wl_client *client,
@ -232,10 +231,10 @@ static void control_handle_seat_destroy(struct wl_listener *listener,
wlr_data_control_device_v1_destroy(device);
}
static void control_handle_seat_selection(struct wl_listener *listener,
static void control_handle_seat_set_selection(struct wl_listener *listener,
void *data) {
struct wlr_data_control_device_v1 *device =
wl_container_of(listener, device, seat_selection);
wl_container_of(listener, device, seat_set_selection);
control_send_selection(device);
}
@ -250,7 +249,7 @@ void wlr_data_control_device_v1_destroy(struct wlr_data_control_device_v1 *devic
wl_resource_set_user_data(device->selection_offer_resource, NULL);
}
wl_list_remove(&device->seat_destroy.link);
wl_list_remove(&device->seat_selection.link);
wl_list_remove(&device->seat_set_selection.link);
wl_list_remove(&device->link);
free(device);
}
@ -319,8 +318,9 @@ static void manager_handle_get_data_device(struct wl_client *client,
device->seat_destroy.notify = control_handle_seat_destroy;
wl_signal_add(&device->seat->events.destroy, &device->seat_destroy);
device->seat_selection.notify = control_handle_seat_selection;
wl_signal_add(&device->seat->events.selection, &device->seat_selection);
device->seat_set_selection.notify = control_handle_seat_set_selection;
wl_signal_add(&device->seat->events.set_selection,
&device->seat_set_selection);
wl_list_insert(&manager->devices, &device->link);
wlr_signal_emit_safe(&manager->events.new_device, device);

18
types/wlr_gtk_primary_selection.c
View file

@ -208,7 +208,7 @@ static void device_handle_set_selection(struct wl_client *client,
source = &client_source->source;
}
wlr_seat_set_primary_selection(device->seat, source, serial);
wlr_seat_request_set_primary_selection(device->seat, source, serial);
}
static void device_handle_destroy(struct wl_client *client,
@ -272,10 +272,10 @@ static void device_handle_seat_focus_change(struct wl_listener *listener,
device_send_selection(device);
}
static void device_handle_seat_primary_selection(struct wl_listener *listener,
void *data) {
static void device_handle_seat_set_primary_selection(
struct wl_listener *listener, void *data) {
struct wlr_gtk_primary_selection_device *device =
wl_container_of(listener, device, seat_primary_selection);
wl_container_of(listener, device, seat_set_primary_selection);
struct wl_resource *resource, *tmp;
wl_resource_for_each_safe(resource, tmp, &device->offers) {
@ -314,10 +314,10 @@ static struct wlr_gtk_primary_selection_device *get_or_create_device(
wl_signal_add(&seat->keyboard_state.events.focus_change,
&device->seat_focus_change);
device->seat_primary_selection.notify =
device_handle_seat_primary_selection;
wl_signal_add(&seat->events.primary_selection,
&device->seat_primary_selection);
device->seat_set_primary_selection.notify =
device_handle_seat_set_primary_selection;
wl_signal_add(&seat->events.set_primary_selection,
&device->seat_set_primary_selection);
return device;
}
@ -329,7 +329,7 @@ static void device_destroy(struct wlr_gtk_primary_selection_device *device) {
wl_list_remove(&device->link);
wl_list_remove(&device->seat_destroy.link);
wl_list_remove(&device->seat_focus_change.link);
wl_list_remove(&device->seat_primary_selection.link);
wl_list_remove(&device->seat_set_primary_selection.link);
struct wl_resource *resource, *resource_tmp;
wl_resource_for_each_safe(resource, resource_tmp, &device->offers) {
destroy_offer(resource);

21
types/wlr_primary_selection.c
View file

@ -41,13 +41,30 @@ void wlr_primary_selection_source_send(
}
void wlr_seat_request_set_primary_selection(struct wlr_seat *seat,
struct wlr_primary_selection_source *source, uint32_t serial) {
if (seat->primary_selection_source &&
seat->primary_selection_serial - serial < UINT32_MAX / 2) {
wlr_log(WLR_DEBUG, "Rejecting set_primary_selection request, "
"invalid serial (%"PRIu32" <= %"PRIu32")",
serial, seat->primary_selection_serial);
return;
}
struct wlr_seat_request_set_primary_selection_event event = {
.source = source,
.serial = serial,
};
wlr_signal_emit_safe(&seat->events.request_set_primary_selection, &event);
}
static void seat_handle_primary_selection_source_destroy(
struct wl_listener *listener, void *data) {
struct wlr_seat *seat =
wl_container_of(listener, seat, primary_selection_source_destroy);
wl_list_remove(&seat->primary_selection_source_destroy.link);
seat->primary_selection_source = NULL;
wlr_signal_emit_safe(&seat->events.primary_selection, seat);
wlr_signal_emit_safe(&seat->events.set_primary_selection, seat);
}
void wlr_seat_set_primary_selection(struct wlr_seat *seat,
@ -75,5 +92,5 @@ void wlr_seat_set_primary_selection(struct wlr_seat *seat,
&seat->primary_selection_source_destroy);
}
wlr_signal_emit_safe(&seat->events.primary_selection, seat);
wlr_signal_emit_safe(&seat->events.set_primary_selection, seat);
}

6
xwayland/selection/incoming.c
View file

@ -350,7 +350,7 @@ static void xwm_selection_get_targets(struct wlr_xwm_selection *selection) {
bool ok = source_get_targets(selection, &source->base.mime_types,
&source->mime_types_atoms);
if (ok) {
wlr_seat_set_selection(xwm->seat, &source->base,
wlr_seat_request_set_selection(xwm->seat, &source->base,
wl_display_next_serial(xwm->xwayland->wl_display));
} else {
wlr_data_source_cancel(&source->base);
@ -425,10 +425,10 @@ int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
// A real X client selection went away, not our
// proxy selection
if (selection == &xwm->clipboard_selection) {
wlr_seat_set_selection(xwm->seat, NULL,
wlr_seat_request_set_selection(xwm->seat, NULL,
wl_display_next_serial(xwm->xwayland->wl_display));
} else if (selection == &xwm->primary_selection) {
wlr_seat_set_primary_selection(xwm->seat, NULL,
wlr_seat_request_set_primary_selection(xwm->seat, NULL,
wl_display_next_serial(xwm->xwayland->wl_display));
} else if (selection == &xwm->dnd_selection) {
// TODO: DND

25
xwayland/selection/selection.c
View file

@ -255,11 +255,11 @@ static void xwm_selection_set_owner(struct wlr_xwm_selection *selection,
}
}
static void seat_handle_selection(struct wl_listener *listener,
static void handle_seat_set_selection(struct wl_listener *listener,
void *data) {
struct wlr_seat *seat = data;
struct wlr_xwm *xwm =
wl_container_of(listener, xwm, seat_selection);
wl_container_of(listener, xwm, seat_set_selection);
struct wlr_data_source *source = seat->selection_source;
if (source != NULL && data_source_is_xwayland(source)) {
@ -269,11 +269,11 @@ static void seat_handle_selection(struct wl_listener *listener,
xwm_selection_set_owner(&xwm->clipboard_selection, source != NULL);
}
static void seat_handle_primary_selection(struct wl_listener *listener,
static void handle_seat_set_primary_selection(struct wl_listener *listener,
void *data) {
struct wlr_seat *seat = data;
struct wlr_xwm *xwm =
wl_container_of(listener, xwm, seat_primary_selection);
wl_container_of(listener, xwm, seat_set_primary_selection);
struct wlr_primary_selection_source *source =
seat->primary_selection_source;
@ -294,8 +294,8 @@ static void seat_handle_start_drag(struct wl_listener *listener, void *data) {
void xwm_set_seat(struct wlr_xwm *xwm, struct wlr_seat *seat) {
if (xwm->seat != NULL) {
wl_list_remove(&xwm->seat_selection.link);
wl_list_remove(&xwm->seat_primary_selection.link);
wl_list_remove(&xwm->seat_set_selection.link);
wl_list_remove(&xwm->seat_set_primary_selection.link);
wl_list_remove(&xwm->seat_start_drag.link);
xwm->seat = NULL;
}
@ -306,13 +306,14 @@ void xwm_set_seat(struct wlr_xwm *xwm, struct wlr_seat *seat) {
xwm->seat = seat;
wl_signal_add(&seat->events.selection, &xwm->seat_selection);
xwm->seat_selection.notify = seat_handle_selection;
wl_signal_add(&seat->events.primary_selection, &xwm->seat_primary_selection);
xwm->seat_primary_selection.notify = seat_handle_primary_selection;
wl_signal_add(&seat->events.set_selection, &xwm->seat_set_selection);
xwm->seat_set_selection.notify = handle_seat_set_selection;
wl_signal_add(&seat->events.set_primary_selection,
&xwm->seat_set_primary_selection);
xwm->seat_set_primary_selection.notify = handle_seat_set_primary_selection;
wl_signal_add(&seat->events.start_drag, &xwm->seat_start_drag);
xwm->seat_start_drag.notify = seat_handle_start_drag;
seat_handle_selection(&xwm->seat_selection, seat);
seat_handle_primary_selection(&xwm->seat_primary_selection, seat);
handle_seat_set_selection(&xwm->seat_set_selection, seat);
handle_seat_set_primary_selection(&xwm->seat_set_primary_selection, seat);
}