1 files changed, 63 insertions, 0 deletions

diff --git a/rootston/desktop.c b/rootston/desktop.c
index 4bb1de5f..b2d586f4 100644
--- a/rootston/desktop.c
+++ b/rootston/desktop.c
@@ -19,6 +19,7 @@
 #include "rootston/server.h"
 #include "rootston/seat.h"
 #include "rootston/xcursor.h"
+#include "rootston/view.h"
 
 void view_get_box(const struct roots_view *view, struct wlr_box *box) {
 	box->x = view->x;
@@ -26,11 +27,66 @@ void view_get_box(const struct roots_view *view, struct wlr_box *box) {
 	if (view->get_size) {
 		view->get_size(view, box);
 	} else {
+		if (view->wlr_surface == NULL) {
+			// View is unmapped
+			box->width = box->height = 0;
+			return;
+		}
+
 		box->width = view->wlr_surface->current->width;
 		box->height = view->wlr_surface->current->height;
 	}
 }
 
+void view_get_deco_box(const struct roots_view *view, struct wlr_box *box) {
+	view_get_box(view, box);
+	if (!view->decorated) {
+		return;
+	}
+
+	box->x -= view->border_width;
+	box->y -= (view->border_width + view->titlebar_height);
+	box->width += view->border_width * 2;
+	box->height += (view->border_width * 2 + view->titlebar_height);
+}
+
+enum roots_deco_part view_get_deco_part(struct roots_view *view, double sx, double sy) {
+	if (!view->decorated) {
+		return ROOTS_DECO_PART_NONE;
+	}
+
+	int sw = view->wlr_surface->current->width;
+	int sh = view->wlr_surface->current->height;
+	int bw = view->border_width;
+	int titlebar_h = view->titlebar_height;
+
+	if (sx > 0 && sx < sw && sy < 0 && sy > -view->titlebar_height) {
+		return ROOTS_DECO_PART_TITLEBAR;
+	}
+
+	enum roots_deco_part parts = 0;
+	if (sy >= -(titlebar_h + bw) &&
+			sy <= sh + bw) {
+		if (sx < 0 && sx > -bw) {
+			parts |= ROOTS_DECO_PART_LEFT_BORDER;
+		} else if (sx > sw && sx < sw + bw) {
+			parts |= ROOTS_DECO_PART_RIGHT_BORDER;
+		}
+	}
+
+	if (sx >= -bw && sx <= sw + bw) {
+		if (sy > sh && sy <= sh + bw) {
+			parts |= ROOTS_DECO_PART_BOTTOM_BORDER;
+		} else if (sy >= -(titlebar_h + bw) && sy < 0) {
+			parts |= ROOTS_DECO_PART_TOP_BORDER;
+		}
+	}
+
+	// TODO corners
+
+	return parts;
+}
+
 static void view_update_output(const struct roots_view *view,
 		const struct wlr_box *before) {
 	struct roots_desktop *desktop = view->desktop;
@@ -468,6 +524,13 @@ static bool view_at(struct roots_view *view, double lx, double ly,
 		return true;
 	}
 
+	if (view_get_deco_part(view, view_sx, view_sy)) {
+		*sx = view_sx;
+		*sy = view_sy;
+		*surface = NULL;
+		return true;
+	}
+
 	if (wlr_box_contains_point(&box, view_sx, view_sy) &&
 			pixman_region32_contains_point(&view->wlr_surface->current->input,
 				view_sx, view_sy, NULL)) {