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src/cursor.c: Fix branch condition for out-of-view selecting/dragging

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Instead of using the stored view for comparison use the actual surface.

Before this patch, there were situations where the branch intended for
out-of-window text selection / scrollbar dragging was used even though
the cursor never left the surface.

Partly fixes #340
This commit is contained in:
Consolatis 2022-05-24 13:02:51 +02:00 • committed by Johan Malm
parent fbcdf38b52
commit 6dd290afc9
3 changed files with 27 additions and 15 deletions
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11
include/labwc.h
View file

@ -91,16 +91,19 @@ struct seat {
struct wlr_layer_surface_v1 *focused_layer;
/**
* active_view will usually be NULL and is only set on button press
* while the mouse is over a view surface and reset to NULL on button
* release.
* pressed view/surface will usually be NULL and is only set on button
* press while the mouse is over a view surface and reset to NULL on
* button release.
* It is used to send cursor motion events to a surface even though
* the cursor has left the surface in the meantime.
*
* This allows to keep dragging a scrollbar or selecting text even
* when moving outside of the window.
*/
struct view *active_view;
struct {
struct view *view;
struct wlr_surface *surface;
} pressed;
struct wl_client *active_client_while_inhibited;
struct wl_list inputs;

26
src/cursor.c
View file

@ -293,22 +293,27 @@ process_cursor_motion(struct server *server, uint32_t time)
hover->node = NULL;
}
if (server->seat.active_view && !server->seat.drag_icon) {
if (server->seat.pressed.surface &&
server->seat.pressed.surface != surface &&
!server->seat.drag_icon) {
/*
* Button has been pressed while over a view surface
* and is still held down. Just send the adjusted motion
* events to the focused surface so we can keep scrolling
* or selecting text even if the cursor moves outside of
* the surface.
*
* TODO: This seems to miss calculations for invisible CSD borders.
* Tracked at https://github.com/labwc/labwc/issues/340
*/
view = server->seat.active_view;
double sx = server->seat.cursor->x - view->x;
double sy = server->seat.cursor->y - view->y;
view = server->seat.pressed.view;
sx = server->seat.cursor->x - view->x;
sy = server->seat.cursor->y - view->y;
sx = sx < 0 ? 0 : (sx > view->w ? view->w : sx);
sy = sy < 0 ? 0 : (sy > view->h ? view->h : sy);
wlr_seat_pointer_notify_motion(server->seat.seat, time, sx, sy);
} else if (surface &&
!input_inhibit_blocks_surface(&server->seat, surface->resource)) {
} else if (surface && !input_inhibit_blocks_surface(
&server->seat, surface->resource)) {
bool focus_changed =
wlr_seat->pointer_state.focused_surface != surface;
/*
@ -359,7 +364,8 @@ start_drag(struct wl_listener *listener, void *data)
{
struct seat *seat = wl_container_of(listener, seat, start_drag);
struct wlr_drag *wlr_drag = data;
seat->active_view = NULL;
seat->pressed.view = NULL;
seat->pressed.surface = NULL;
seat->drag_icon = wlr_drag->icon;
if (!seat->drag_icon) {
wlr_log(WLR_ERROR,
@ -706,7 +712,8 @@ cursor_button(struct wl_listener *listener, void *data)
/* handle _release_ */
if (event->state == WLR_BUTTON_RELEASED) {
server->seat.active_view = NULL;
server->seat.pressed.view = NULL;
server->seat.pressed.surface = NULL;
if (server->input_mode == LAB_INPUT_STATE_MENU) {
if (close_menu) {
@ -742,7 +749,8 @@ cursor_button(struct wl_listener *listener, void *data)
/* Handle _press */
if (view_area == LAB_SSD_CLIENT) {
server->seat.active_view = view;
server->seat.pressed.view = view;
server->seat.pressed.surface = surface;
}
if (server->input_mode == LAB_INPUT_STATE_MENU) {

5
src/view.c
View file

@ -686,8 +686,9 @@ view_destroy(struct view *view)
}
interactive_end(view);
if (view->server->seat.active_view == view) {
view->server->seat.active_view = NULL;
if (view->server->seat.pressed.view == view) {
view->server->seat.pressed.view = NULL;
view->server->seat.pressed.surface = NULL;
}
if (view->server->cycle_view == view) {