Merge pull request #525 from acrisci/serial-validation

Serial validation for grab requests
This commit is contained in:
Drew DeVault 2017-12-27 07:54:00 -08:00 committed by GitHub
commit a0d2a6b445
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7 changed files with 38 additions and 23 deletions

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@ -10,12 +10,6 @@ enum roots_cursor_mode {
ROOTS_CURSOR_ROTATE = 3, ROOTS_CURSOR_ROTATE = 3,
}; };
struct roots_input_event {
uint32_t serial;
struct wlr_cursor *cursor;
struct wlr_input_device *device;
};
struct roots_cursor { struct roots_cursor {
struct roots_seat *seat; struct roots_seat *seat;
struct wlr_cursor *cursor; struct wlr_cursor *cursor;
@ -32,9 +26,6 @@ struct roots_cursor {
int view_x, view_y, view_width, view_height; int view_x, view_y, view_width, view_height;
float view_rotation; float view_rotation;
uint32_t resize_edges; uint32_t resize_edges;
// Ring buffer of input events that could trigger move/resize/rotate
int input_events_idx;
struct roots_input_event input_events[16];
struct wl_listener motion; struct wl_listener motion;
struct wl_listener motion_absolute; struct wl_listener motion_absolute;

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@ -509,4 +509,10 @@ int wlr_seat_touch_num_points(struct wlr_seat *seat);
*/ */
bool wlr_seat_touch_has_grab(struct wlr_seat *seat); bool wlr_seat_touch_has_grab(struct wlr_seat *seat);
/**
* Check whether this serial is valid to start a grab action such as an
* interactive move or resize.
*/
bool wlr_seat_validate_grab_serial(struct wlr_seat *seat, uint32_t serial);
#endif #endif

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@ -174,15 +174,10 @@ static void roots_cursor_press_button(struct roots_cursor *cursor,
} }
} }
uint32_t serial; if (!is_touch) {
if (is_touch) {
serial = wl_display_get_serial(desktop->server->wl_display);
} else {
serial =
wlr_seat_pointer_notify_button(seat->seat, time, button, state); wlr_seat_pointer_notify_button(seat->seat, time, button, state);
} }
int i;
switch (state) { switch (state) {
case WLR_BUTTON_RELEASED: case WLR_BUTTON_RELEASED:
if (!is_touch) { if (!is_touch) {
@ -190,12 +185,6 @@ static void roots_cursor_press_button(struct roots_cursor *cursor,
} }
break; break;
case WLR_BUTTON_PRESSED: case WLR_BUTTON_PRESSED:
i = cursor->input_events_idx;
cursor->input_events[i].serial = serial;
cursor->input_events[i].cursor = cursor->cursor;
cursor->input_events[i].device = device;
cursor->input_events_idx = (i + 1)
% (sizeof(cursor->input_events) / sizeof(cursor->input_events[0]));
roots_seat_set_focus(seat, view); roots_seat_set_focus(seat, view);
break; break;
} }

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@ -43,7 +43,6 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
struct roots_input *input = view->desktop->server->input; struct roots_input *input = view->desktop->server->input;
struct wlr_wl_shell_surface_resize_event *e = data; struct wlr_wl_shell_surface_resize_event *e = data;
struct roots_seat *seat = input_seat_from_wlr_seat(input, e->seat->seat); struct roots_seat *seat = input_seat_from_wlr_seat(input, e->seat->seat);
// TODO verify input event
if (!seat || seat->cursor->mode != ROOTS_CURSOR_PASSTHROUGH) { if (!seat || seat->cursor->mode != ROOTS_CURSOR_PASSTHROUGH) {
return; return;
} }

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@ -1216,3 +1216,8 @@ int wlr_seat_touch_num_points(struct wlr_seat *seat) {
bool wlr_seat_touch_has_grab(struct wlr_seat *seat) { bool wlr_seat_touch_has_grab(struct wlr_seat *seat) {
return seat->touch_state.grab->interface != &default_touch_grab_impl; return seat->touch_state.grab->interface != &default_touch_grab_impl;
} }
bool wlr_seat_validate_grab_serial(struct wlr_seat *seat, uint32_t serial) {
return serial == seat->pointer_state.grab_serial ||
serial == seat->touch_state.grab_serial;
}

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@ -112,6 +112,11 @@ static void shell_surface_protocol_move(struct wl_client *client,
struct wlr_seat_client *seat = struct wlr_seat_client *seat =
wl_resource_get_user_data(seat_resource); wl_resource_get_user_data(seat_resource);
if (!wlr_seat_validate_grab_serial(seat->seat, serial)) {
wlr_log(L_DEBUG, "invalid serial for grab");
return;
}
struct wlr_wl_shell_surface_move_event event = { struct wlr_wl_shell_surface_move_event event = {
.surface = surface, .surface = surface,
.seat = seat, .seat = seat,
@ -170,6 +175,11 @@ static void shell_surface_protocol_resize(struct wl_client *client,
struct wlr_seat_client *seat = struct wlr_seat_client *seat =
wl_resource_get_user_data(seat_resource); wl_resource_get_user_data(seat_resource);
if (!wlr_seat_validate_grab_serial(seat->seat, serial)) {
wlr_log(L_DEBUG, "invalid serial for grab");
return;
}
struct wlr_wl_shell_surface_resize_event event = { struct wlr_wl_shell_surface_resize_event event = {
.surface = surface, .surface = surface,
.seat = seat, .seat = seat,

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@ -565,6 +565,11 @@ static void xdg_toplevel_protocol_show_window_menu(struct wl_client *client,
return; return;
} }
if (!wlr_seat_validate_grab_serial(seat->seat, serial)) {
wlr_log(L_DEBUG, "invalid serial for grab");
return;
}
struct wlr_xdg_toplevel_v6_show_window_menu_event event = { struct wlr_xdg_toplevel_v6_show_window_menu_event event = {
.surface = surface, .surface = surface,
.seat = seat, .seat = seat,
@ -590,6 +595,11 @@ static void xdg_toplevel_protocol_move(struct wl_client *client,
return; return;
} }
if (!wlr_seat_validate_grab_serial(seat->seat, serial)) {
wlr_log(L_DEBUG, "invalid serial for grab");
return;
}
struct wlr_xdg_toplevel_v6_move_event event = { struct wlr_xdg_toplevel_v6_move_event event = {
.surface = surface, .surface = surface,
.seat = seat, .seat = seat,
@ -613,6 +623,11 @@ static void xdg_toplevel_protocol_resize(struct wl_client *client,
return; return;
} }
if (!wlr_seat_validate_grab_serial(seat->seat, serial)) {
wlr_log(L_DEBUG, "invalid serial for grab");
return;
}
struct wlr_xdg_toplevel_v6_resize_event event = { struct wlr_xdg_toplevel_v6_resize_event event = {
.surface = surface, .surface = surface,
.seat = seat, .seat = seat,