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implement drag and drop

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For brevity, only a single drag icon at a time is supported.

Co-authored-by: Leonardo Hernández Hernández <leohdz172@protonmail.com>
This commit is contained in:
Guido Cella 2022-03-21 23:03:52 +01:00 committed by Leonardo Hernández Hernández
parent 86fe15f76c
commit 330792b1fc
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GPG key ID: E538897EE11B9624
1 changed files with 48 additions and 0 deletions
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48
dwl.c
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@ -227,6 +227,7 @@ static void cursorframe(struct wl_listener *listener, void *data);
static void destroylayersurfacenotify(struct wl_listener *listener, void *data);
static void destroynotify(struct wl_listener *listener, void *data);
static Monitor *dirtomon(enum wlr_direction dir);
static void dragicondestroy(struct wl_listener *listener, void *data);
static void focusclient(Client *c, int lift);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
@ -254,6 +255,7 @@ static void printstatus(void);
static void quit(const Arg *arg);
static void quitsignal(int signo);
static void rendermon(struct wl_listener *listener, void *data);
static void requeststartdrag(struct wl_listener *listener, void *data);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void run(char *startup_cmd);
static Client *selclient(void);
@ -268,6 +270,7 @@ static void setmon(Client *c, Monitor *m, unsigned int newtags);
static void setup(void);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void startdrag(struct wl_listener *listener, void *data);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static void tile(Monitor *m);
@ -340,6 +343,9 @@ static struct wl_listener request_activate = {.notify = urgent};
static struct wl_listener request_cursor = {.notify = setcursor};
static struct wl_listener request_set_psel = {.notify = setpsel};
static struct wl_listener request_set_sel = {.notify = setsel};
static struct wl_listener request_start_drag = {.notify = requeststartdrag};
static struct wl_listener start_drag = {.notify = startdrag};
static struct wl_listener drag_icon_destroy = {.notify = dragicondestroy};
#ifdef XWAYLAND
static void activatex11(struct wl_listener *listener, void *data);
@ -1023,6 +1029,16 @@ destroynotify(struct wl_listener *listener, void *data)
free(c);
}
void
dragicondestroy(struct wl_listener *listener, void *data)
{
struct wlr_drag_icon *icon = data;
wlr_scene_node_destroy(icon->data);
// Focus enter isn't sent during drag, so refocus the focused node.
focusclient(selclient(), 1);
motionnotify(0);
}
void
togglefullscreen(const Arg *arg)
{
@ -1400,11 +1416,16 @@ motionnotify(uint32_t time)
/* time is 0 in internal calls meant to restore pointer focus. */
if (time) {
struct wlr_drag_icon *icon;
wlr_idle_notify_activity(idle, seat);
/* Update selmon (even while dragging a window) */
if (sloppyfocus)
selmon = xytomon(cursor->x, cursor->y);
if (seat->drag && (icon = seat->drag->icon))
wlr_scene_node_set_position(icon->data, cursor->x + icon->surface->sx,
cursor->y + icon->surface->sy);
}
/* If we are currently grabbing the mouse, handle and return */
@ -1665,6 +1686,18 @@ resize(Client *c, int x, int y, int w, int h, int interact)
c->geom.height - 2 * c->bw);
}
void
requeststartdrag(struct wl_listener *listener, void *data)
{
struct wlr_seat_request_start_drag_event *event = data;
if (wlr_seat_validate_pointer_grab_serial(seat, event->origin,
event->serial))
wlr_seat_start_pointer_drag(seat, event->drag, event->serial);
else
wlr_data_source_destroy(event->drag->source);
}
void
run(char *startup_cmd)
{
@ -1976,6 +2009,8 @@ setup(void)
wl_signal_add(&seat->events.request_set_cursor, &request_cursor);
wl_signal_add(&seat->events.request_set_selection, &request_set_sel);
wl_signal_add(&seat->events.request_set_primary_selection, &request_set_psel);
wl_signal_add(&seat->events.request_start_drag, &request_start_drag);
wl_signal_add(&seat->events.start_drag, &start_drag);
output_mgr = wlr_output_manager_v1_create(dpy);
wl_signal_add(&output_mgr->events.apply, &output_mgr_apply);
@ -2026,6 +2061,19 @@ spawn(const Arg *arg)
}
}
void
startdrag(struct wl_listener *listener, void *data)
{
struct wlr_drag *drag = data;
if (!drag->icon)
return;
drag->icon->data = wlr_scene_subsurface_tree_create(layers[LyrTop], drag->icon->surface);
wlr_scene_node_raise_to_top(drag->icon->data);
wl_signal_add(&drag->icon->events.destroy, &drag_icon_destroy);
}
void
tag(const Arg *arg)
{