Merge pull request #212 from sce/mouse_warping

Learn mouse_warping

1 files changed, 65 insertions, 0 deletions

diff --git a/sway/container.c b/sway/container.c
index 6c4206fb..f3e2b3ae 100644
--- a/sway/container.c
+++ b/sway/container.c
@@ -8,6 +8,7 @@
 #include "workspace.h"
 #include "focus.h"
 #include "layout.h"
+#include "input_state.h"
 #include "log.h"
 
 #define ASSERT_NONNULL(PTR) \
@@ -508,6 +509,70 @@ swayc_t *swayc_active_workspace_for(swayc_t *cont) {
 	}
 }
 
+static bool pointer_test(swayc_t *view, void *_origin) {
+	const struct wlc_origin *origin = _origin;
+	// Determine the output that the view is under
+	swayc_t *parent = swayc_parent_by_type(view, C_OUTPUT);
+	if (origin->x >= view->x && origin->y >= view->y
+		&& origin->x < view->x + view->width && origin->y < view->y + view->height
+		&& view->visible && parent == root_container.focused) {
+		return true;
+	}
+	return false;
+}
+
+swayc_t *container_under_pointer(void) {
+	// root.output->workspace
+	if (!root_container.focused || !root_container.focused->focused) {
+		return NULL;
+	}
+	swayc_t *lookup = root_container.focused->focused;
+	// Case of empty workspace
+	if (lookup->children == 0) {
+		return NULL;
+	}
+	struct wlc_origin origin;
+	wlc_pointer_get_origin(&origin);
+	while (lookup->type != C_VIEW) {
+		int i;
+		int len;
+		// if tabbed/stacked go directly to focused container, otherwise search
+		// children
+		if (lookup->layout == L_TABBED || lookup->layout == L_STACKED) {
+			lookup = lookup->focused;
+			continue;
+		}
+		// if workspace, search floating
+		if (lookup->type == C_WORKSPACE) {
+			i = len = lookup->floating->length;
+			bool got_floating = false;
+			while (--i > -1) {
+				if (pointer_test(lookup->floating->items[i], &origin)) {
+					lookup = lookup->floating->items[i];
+					got_floating = true;
+					break;
+				}
+			}
+			if (got_floating) {
+				continue;
+			}
+		}
+		// search children
+		len = lookup->children->length;
+		for (i = 0; i < len; ++i) {
+			if (pointer_test(lookup->children->items[i], &origin)) {
+				lookup = lookup->children->items[i];
+				break;
+			}
+		}
+		// when border and titles are done, this could happen
+		if (i == len) {
+			break;
+		}
+	}
+	return lookup;
+}
+
 // Container information
 
 bool swayc_is_fullscreen(swayc_t *view) {