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	Center xdg shell views
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					 3 changed files with 41 additions and 2 deletions
				
			
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			@ -1,5 +1,6 @@
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#ifndef _ROOTSTON_VIEW_H
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#define _ROOTSTON_VIEW_H
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#include <stdbool.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_surface.h>
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			@ -18,7 +19,9 @@ struct roots_wl_shell_surface {
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struct roots_xdg_surface_v6 {
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	struct roots_view *view;
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	// TODO: Maybe destroy listener should go in roots_view
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	struct wl_listener commit;
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	struct wl_listener destroy;
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	struct wl_listener ping_timeout;
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	struct wl_listener request_minimize;
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			@ -73,5 +76,6 @@ void view_get_input_bounds(struct roots_view *view, struct wlr_box *box);
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void view_activate(struct roots_view *view, bool active);
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void view_resize(struct roots_view *view, uint32_t width, uint32_t height);
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void view_close(struct roots_view *view);
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bool view_center(struct roots_view *view);
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#endif
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			@ -83,6 +83,26 @@ void view_close(struct roots_view *view) {
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	}
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}
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bool view_center(struct roots_view *view) {
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	struct wlr_box size;
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	view_get_size(view, &size);
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	if (size.width == 0 && size.height == 0) {
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		return false;
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	}
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	struct roots_desktop *desktop = view->desktop;
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	struct wlr_cursor *cursor = desktop->server->input->cursor;
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	struct wlr_output *output = wlr_output_layout_output_at(desktop->layout,
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		cursor->x, cursor->y);
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	if (!output) {
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		return false;
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	}
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	view->x = (double)(output->width - size.width) / 2;
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	view->y = (double)(output->height - size.height) / 2;
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	return true;
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}
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static struct wlr_subsurface *subsurface_at(struct wlr_surface *surface,
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		double sx, double sy, double *sub_x, double *sub_y) {
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	struct wlr_subsurface *subsurface;
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			@ -67,6 +67,17 @@ static void handle_request_resize(struct wl_listener *listener, void *data) {
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	view_begin_resize(input, event->cursor, view, e->edges);
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}
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static void handle_commit(struct wl_listener *listener, void *data) {
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	struct roots_xdg_surface_v6 *roots_xdg_surface =
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		wl_container_of(listener, roots_xdg_surface, commit);
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	struct roots_view *view = roots_xdg_surface->view;
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	bool centered = view_center(view);
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	if (centered) {
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		wl_list_remove(&listener->link);
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	}
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}
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static void handle_destroy(struct wl_listener *listener, void *data) {
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	struct roots_xdg_surface_v6 *roots_xdg_surface =
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		wl_container_of(listener, roots_xdg_surface, destroy);
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			@ -98,7 +109,12 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
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	struct roots_xdg_surface_v6 *roots_surface =
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		calloc(1, sizeof(struct roots_xdg_surface_v6));
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	// TODO: all of the trimmings
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	if (!roots_surface) {
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		return;
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	}
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	wl_list_init(&roots_surface->commit.link);
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	roots_surface->commit.notify = handle_commit;
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	wl_signal_add(&surface->events.commit, &roots_surface->commit);
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	wl_list_init(&roots_surface->destroy.link);
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	roots_surface->destroy.notify = handle_destroy;
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	wl_signal_add(&surface->events.destroy, &roots_surface->destroy);
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			@ -115,7 +131,6 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
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	struct roots_view *view = calloc(1, sizeof(struct roots_view));
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	view->type = ROOTS_XDG_SHELL_V6_VIEW;
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	view->x = view->y = 200;
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	view->xdg_surface_v6 = surface;
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	view->roots_xdg_surface_v6 = roots_surface;
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	view->wlr_surface = surface->surface;
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