working pointer motion

include/sway/container.h

@@ -3,6 +3,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
 #include "list.h"
 
 typedef struct sway_container swayc_t;
@@ -136,4 +137,7 @@ swayc_t *destroy_view(swayc_t *view);
 
 swayc_t *swayc_parent_by_type(swayc_t *container, enum swayc_types type);
 
+swayc_t *swayc_at(swayc_t *parent, double lx, double ly,
+		struct wlr_surface **surface, double *sx, double *sy);
+
 #endif

include/sway/input/cursor.h

@@ -4,9 +4,12 @@
 #include "sway/input/seat.h"
 
 struct sway_cursor {
+	struct sway_seat *seat;
 	struct wlr_cursor *cursor;
 	struct wlr_xcursor_manager *xcursor_manager;
 
+	double x, y;
+
 	struct wl_listener motion;
 	struct wl_listener motion_absolute;
 	struct wl_listener button;

sway/desktop/output.c

@@ -25,8 +25,8 @@ static void output_frame_view(swayc_t *view, void *data) {
 	}
 	// TODO
 	// - Deal with wlr_output_layout
-	int width = sway_view->width;
-	int height = sway_view->height;
+	int width = sway_view->surface->current->width;
+	int height = sway_view->surface->current->height;
 	int render_width = width * wlr_output->scale;
 	int render_height = height * wlr_output->scale;
 	double ox = view->x, oy = view->y;
@@ -40,19 +40,33 @@ static void output_frame_view(swayc_t *view, void *data) {
 	//		return;
 	//}
 
+	// if the shell specifies window geometry, make the top left corner of the
+	// window in the top left corner of the container to avoid arbitrarily
+	// sized gaps based on the attached buffer size
+	int window_offset_x = 0;
+	int window_offset_y = 0;
+
+	if (view->sway_view->type == SWAY_XDG_SHELL_V6_VIEW) {
+		window_offset_x = view->sway_view->wlr_xdg_surface_v6->geometry->x;
+		window_offset_y = view->sway_view->wlr_xdg_surface_v6->geometry->y;
+	}
+
 	// TODO
 	double rotation = 0;
 	float matrix[16];
 
 	float translate_origin[16];
 	wlr_matrix_translate(&translate_origin,
-		(int)ox + render_width / 2, (int)oy + render_height / 2, 0);
+		(int)ox + render_width / 2 - window_offset_x,
+		(int)oy + render_height / 2 - window_offset_y,
+		0);
 
 	float rotate[16];
 	wlr_matrix_rotate(&rotate, rotation);
 
 	float translate_center[16];
-	wlr_matrix_translate(&translate_center, -render_width / 2,
+	wlr_matrix_translate(&translate_center,
+		-render_width / 2,
 		-render_height / 2, 0);
 
 	float scale[16];

sway/input/cursor.c

@@ -2,16 +2,44 @@
 #include <wlr/types/wlr_cursor.h>
 #include <wlr/types/wlr_xcursor_manager.h>
 #include "sway/input/cursor.h"
+#include "sway/view.h"
+#include "list.h"
 #include "log.h"
 
+static void cursor_update_position(struct sway_cursor *cursor) {
+	double x = cursor->cursor->x;
+	double y = cursor->cursor->y;
+
+	wlr_xcursor_manager_set_cursor_image(cursor->xcursor_manager,
+		"left_ptr", cursor->cursor);
+
+	cursor->x = x;
+	cursor->y = y;
+}
+
+static void cursor_send_pointer_motion(struct sway_cursor *cursor,
+		uint32_t time) {
+	struct wlr_seat *seat = cursor->seat->seat;
+	struct wlr_surface *surface = NULL;
+	double sx, sy;
+	swayc_t *swayc =
+		swayc_at(&root_container, cursor->x, cursor->y, &surface, &sx, &sy);
+	if (swayc) {
+		wlr_seat_pointer_enter(seat, surface, sx, sy);
+		wlr_seat_pointer_notify_motion(seat, time, sx, sy);
+	} else {
+		wlr_seat_pointer_clear_focus(seat);
+	}
+}
+
 static void handle_cursor_motion(struct wl_listener *listener, void *data) {
 	struct sway_cursor *cursor =
 		wl_container_of(listener, cursor, motion);
 	struct wlr_event_pointer_motion *event = data;
-	sway_log(L_DEBUG, "TODO: handle cursor motion event: dx=%f, dy=%f", event->delta_x, event->delta_y);
-	wlr_cursor_move(cursor->cursor, event->device, event->delta_x, event->delta_y);
-	sway_log(L_DEBUG, "TODO: new x=%f, y=%f", cursor->cursor->x, cursor->cursor->y);
-	wlr_xcursor_manager_set_cursor_image(cursor->xcursor_manager, "left_ptr", cursor->cursor);
+	wlr_cursor_move(cursor->cursor, event->device,
+		event->delta_x, event->delta_y);
+	cursor_update_position(cursor);
+	cursor_send_pointer_motion(cursor, event->time_msec);
 }
 
 static void handle_cursor_motion_absolute(struct wl_listener *listener,
@@ -19,7 +47,10 @@ static void handle_cursor_motion_absolute(struct wl_listener *listener,
 	struct sway_cursor *cursor =
 		wl_container_of(listener, cursor, motion_absolute);
 	struct wlr_event_pointer_motion_absolute *event = data;
-	sway_log(L_DEBUG, "TODO: handle event: %p", event);
+	wlr_cursor_warp_absolute(cursor->cursor, event->device,
+		event->x_mm / event->width_mm, event->y_mm / event->height_mm);
+	cursor_update_position(cursor);
+	cursor_send_pointer_motion(cursor, event->time_msec);
 }
 
 static void handle_cursor_button(struct wl_listener *listener, void *data) {
@@ -91,6 +122,7 @@ struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
 		return NULL;
 	}
 
+	cursor->seat = seat;
 	wlr_cursor_attach_output_layout(wlr_cursor, root_container.output_layout);
 
 	// input events

sway/tree/container.c

@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <wlr/types/wlr_output_layout.h>
+#include <wlr/types/wlr_wl_shell.h>
 #include "sway/container.h"
 #include "sway/layout.h"
 #include "sway/output.h"
@@ -168,3 +169,62 @@ swayc_t *swayc_parent_by_type(swayc_t *container, enum swayc_types type) {
 	} while (container && container->type != type);
 	return container;
 }
+
+swayc_t *swayc_at(swayc_t *parent, double lx, double ly,
+		struct wlr_surface **surface, double *sx, double *sy) {
+	list_t *queue = create_list();
+	list_add(queue, parent);
+
+	swayc_t *swayc = NULL;
+	while (queue->length) {
+		swayc = queue->items[0];
+		list_del(queue, 0);
+		if (swayc->type == C_VIEW) {
+			struct sway_view *sview = swayc->sway_view;
+			swayc_t *soutput = swayc_parent_by_type(swayc, C_OUTPUT);
+			struct wlr_box *output_box =
+				wlr_output_layout_get_box(root_container.output_layout,
+					soutput->sway_output->wlr_output);
+			double ox = lx - output_box->x;
+			double oy = ly - output_box->y;
+			double view_sx = ox - swayc->x;
+			double view_sy = oy - swayc->y;
+			int width = swayc->sway_view->surface->current->width;
+			int height = swayc->sway_view->surface->current->height;
+
+			// TODO popups and subsurfaces
+			switch (sview->type) {
+				case SWAY_WL_SHELL_VIEW:
+					break;
+				case SWAY_XDG_SHELL_V6_VIEW:
+					// the top left corner of the sway container is the
+					// coordinate of the top left corner of the window geometry
+					view_sx += sview->wlr_xdg_surface_v6->geometry->x;
+					view_sy += sview->wlr_xdg_surface_v6->geometry->y;
+					break;
+				case SWAY_XWAYLAND_VIEW:
+					break;
+				default:
+					break;
+			}
+
+			if (view_sx > 0 && view_sx < width &&
+					view_sy > 0 && view_sy < height &&
+					pixman_region32_contains_point(
+						&sview->surface->current->input,
+						view_sx, view_sy, NULL)) {
+				*sx = view_sx;
+				*sy = view_sy;
+				*surface = swayc->sway_view->surface;
+				list_free(queue);
+				return swayc;
+			}
+		} else {
+			list_cat(queue, swayc->children);
+		}
+	}
+
+	list_free(queue);
+
+	return NULL;
+}