diff options
Diffstat (limited to 'rootston')
| -rw-r--r-- | rootston/xdg_shell_v6.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/rootston/xdg_shell_v6.c b/rootston/xdg_shell_v6.c index ad33c4b0..e3c70e96 100644 --- a/rootston/xdg_shell_v6.c +++ b/rootston/xdg_shell_v6.c @@ -50,6 +50,186 @@ static void popup_handle_new_popup(struct wl_listener *listener, void *data) { popup_create(popup->view_child.view, wlr_popup); } +static void popup_get_coords(struct wlr_xdg_popup_v6 *popup, + double *sx, double *sy) { + struct wlr_xdg_surface_v6 *parent = popup->parent; + double popup_sx = popup->geometry.x; + double popup_sy = popup->geometry.y; + while (parent->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) { + popup_sx += parent->popup->geometry.x; + popup_sy += parent->popup->geometry.y; + parent = parent->popup->parent; + } + + *sx = popup_sx + parent->geometry.x; + *sy = popup_sy + parent->geometry.y; +} + +static void popup_is_constrained(struct roots_xdg_popup_v6 *popup, + bool *x_constrained, bool *y_constrained) { + struct roots_view *view = popup->view_child.view; + struct wlr_output_layout *layout = view->desktop->layout; + struct wlr_xdg_popup_v6 *wlr_popup = popup->wlr_popup; + int popup_width = wlr_popup->geometry.width; + int popup_height = wlr_popup->geometry.height; + + int anchor_lx, anchor_ly; + wlr_xdg_popup_v6_get_anchor_point(wlr_popup, &anchor_lx, &anchor_ly); + + double popup_lx, popup_ly; + popup_get_coords(wlr_popup, &popup_lx, &popup_ly); + popup_lx += view->x; + popup_ly += view->y; + + anchor_lx += popup_lx; + anchor_ly += popup_ly; + + double dest_x = 0, dest_y = 0; + wlr_output_layout_closest_point(layout, NULL, anchor_lx, anchor_ly, + &dest_x, &dest_y); + + struct wlr_output *output = + wlr_output_layout_output_at(layout, dest_x, dest_y); + // XXX: handle empty output layout + assert(output); + + struct wlr_box *output_box = wlr_output_layout_get_box(layout, output); + *x_constrained = popup_lx <= output_box->x || + popup_lx + popup_width >= output_box->x + output_box->width; + *y_constrained = popup_ly <= output_box->y || + popup_ly + popup_height >= output_box->y + output_box->height; +} + +static void popup_unconstrain_flip(struct roots_xdg_popup_v6 *popup) { + bool x_constrained, y_constrained; + popup_is_constrained(popup, &x_constrained, &y_constrained); + + if (!x_constrained && !y_constrained) { + return; + } + + if (x_constrained) { + wlr_positioner_v6_invert_x(&popup->wlr_popup->positioner); + } + if (y_constrained) { + wlr_positioner_v6_invert_y(&popup->wlr_popup->positioner); + } + + popup->wlr_popup->geometry = + wlr_xdg_positioner_v6_get_geometry(&popup->wlr_popup->positioner); + + popup_is_constrained(popup, &x_constrained, &y_constrained); + + if (!x_constrained && !y_constrained) { + return; + } + + if (x_constrained) { + wlr_positioner_v6_invert_x(&popup->wlr_popup->positioner); + } + if (y_constrained) { + wlr_positioner_v6_invert_y(&popup->wlr_popup->positioner); + } + + popup->wlr_popup->geometry = + wlr_xdg_positioner_v6_get_geometry(&popup->wlr_popup->positioner); +} + +static void popup_unconstrain_slide(struct roots_xdg_popup_v6 *popup) { + struct roots_view *view = popup->view_child.view; + struct wlr_output_layout *layout = view->desktop->layout; + struct wlr_xdg_popup_v6 *wlr_popup = popup->wlr_popup; + int popup_width = wlr_popup->geometry.width; + int popup_height = wlr_popup->geometry.height; + + int anchor_lx, anchor_ly; + wlr_xdg_popup_v6_get_anchor_point(wlr_popup, &anchor_lx, &anchor_ly); + + double popup_lx, popup_ly; + popup_get_coords(wlr_popup, &popup_lx, &popup_ly); + popup_lx += view->x; + popup_ly += view->y; + + anchor_lx += popup_lx; + anchor_ly += popup_ly; + + double dest_x = 0, dest_y = 0; + wlr_output_layout_closest_point(layout, NULL, anchor_lx, anchor_ly, + &dest_x, &dest_y); + + struct wlr_output *output = + wlr_output_layout_output_at(layout, dest_x, dest_y); + // XXX: handle empty output layout + assert(output); + + struct wlr_box *output_box = wlr_output_layout_get_box(layout, output); + + bool x_constrained = popup_lx <= output_box->x || + popup_lx + popup_width >= output_box->x + output_box->width; + bool y_constrained = popup_ly <= output_box->y || + popup_ly + popup_height >= output_box->y + output_box->height; + + double popup_ox = popup_lx - output_box->x, + popup_oy = popup_ly - output_box->y; + + if (x_constrained) { + wlr_popup->geometry.x -= popup_width - (output_box->width - popup_ox); + } + if (y_constrained) { + wlr_popup->geometry.y -= popup_height - (output_box->height - popup_oy); + } +} + +static void popup_unconstrain_resize(struct roots_xdg_popup_v6 *popup) { + struct roots_view *view = popup->view_child.view; + struct wlr_output_layout *layout = view->desktop->layout; + struct wlr_xdg_popup_v6 *wlr_popup = popup->wlr_popup; + int popup_width = wlr_popup->geometry.width; + int popup_height = wlr_popup->geometry.height; + + int anchor_lx, anchor_ly; + wlr_xdg_popup_v6_get_anchor_point(wlr_popup, &anchor_lx, &anchor_ly); + + double popup_lx, popup_ly; + popup_get_coords(wlr_popup, &popup_lx, &popup_ly); + popup_lx += view->x; + popup_ly += view->y; + + anchor_lx += popup_lx; + anchor_ly += popup_ly; + + double dest_x = 0, dest_y = 0; + wlr_output_layout_closest_point(layout, NULL, anchor_lx, anchor_ly, + &dest_x, &dest_y); + + struct wlr_output *output = + wlr_output_layout_output_at(layout, dest_x, dest_y); + // XXX: handle empty output layout + assert(output); + + struct wlr_box *output_box = wlr_output_layout_get_box(layout, output); + + bool x_constrained = popup_lx <= output_box->x || + popup_lx + popup_width >= output_box->x + output_box->width; + bool y_constrained = popup_ly <= output_box->y || + popup_ly + popup_height >= output_box->y + output_box->height; + + double popup_ox = popup_lx - output_box->x, popup_oy = popup_ly - output_box->y; + + if (x_constrained) { + wlr_popup->geometry.width = output_box->x + output_box->width - popup_ox; + } + if (y_constrained) { + wlr_popup->geometry.height = output_box->y + output_box->height - popup_oy; + } +} + +static void popup_unconstrain(struct roots_xdg_popup_v6 *popup) { + popup_unconstrain_flip(popup); + popup_unconstrain_slide(popup); + popup_unconstrain_resize(popup); +} + static struct roots_xdg_popup_v6 *popup_create(struct roots_view *view, struct wlr_xdg_popup_v6 *wlr_popup) { struct roots_xdg_popup_v6 *popup = @@ -68,6 +248,9 @@ static struct roots_xdg_popup_v6 *popup_create(struct roots_view *view, wl_signal_add(&wlr_popup->base->events.unmap, &popup->unmap); popup->new_popup.notify = popup_handle_new_popup; wl_signal_add(&wlr_popup->base->events.new_popup, &popup->new_popup); + + popup_unconstrain(popup); + return popup; } |