Revert "Revert "Fix popups""

This reverts commit 9aa258d33a9baa42895214da7e82f4568fcb8f76.

Reverting the revert, so that popups can be fixed.

7 files changed, 176 insertions, 46 deletions

diff --git a/sway/desktop/output.c b/sway/desktop/output.c
index 31b53213..66747a3f 100644
--- a/sway/desktop/output.c
+++ b/sway/desktop/output.c
@@ -119,7 +119,7 @@ static void output_for_each_surface_iterator(struct wlr_surface *surface,
 		data->user_data);
 }
 
-static void output_surface_for_each_surface(struct sway_output *output,
+void output_surface_for_each_surface(struct sway_output *output,
 		struct wlr_surface *surface, double ox, double oy,
 		sway_surface_iterator_func_t iterator, void *user_data) {
 	struct surface_iterator_data data = {
@@ -155,6 +155,23 @@ void output_view_for_each_surface(struct sway_output *output,
 		output_for_each_surface_iterator, &data);
 }
 
+void output_view_for_each_popup(struct sway_output *output,
+		struct sway_view *view, sway_surface_iterator_func_t iterator,
+		void *user_data) {
+	struct surface_iterator_data data = {
+		.user_iterator = iterator,
+		.user_data = user_data,
+		.output = output,
+		.ox = view->swayc->current.view_x - output->swayc->current.swayc_x,
+		.oy = view->swayc->current.view_y - output->swayc->current.swayc_y,
+		.width = view->swayc->current.view_width,
+		.height = view->swayc->current.view_height,
+		.rotation = 0, // TODO
+	};
+
+	view_for_each_popup(view, output_for_each_surface_iterator, &data);
+}
+
 void output_layer_for_each_surface(struct sway_output *output,
 		struct wl_list *layer_surfaces, sway_surface_iterator_func_t iterator,
 		void *user_data) {
diff --git a/sway/desktop/render.c b/sway/desktop/render.c
index f0e47c95..1f374740 100644
--- a/sway/desktop/render.c
+++ b/sway/desktop/render.c
@@ -186,13 +186,36 @@ static void premultiply_alpha(float color[4], float opacity) {
 	color[2] *= color[3];
 }
 
-static void render_view_surfaces(struct sway_view *view,
+static void render_view_toplevels(struct sway_view *view,
 		struct sway_output *output, pixman_region32_t *damage, float alpha) {
 	struct render_data data = {
 		.damage = damage,
 		.alpha = alpha,
 	};
-	output_view_for_each_surface(output, view, render_surface_iterator, &data);
+	// Render all toplevels without descending into popups
+	output_surface_for_each_surface(output, view->surface,
+			view->swayc->current.view_x, view->swayc->current.view_y,
+			render_surface_iterator, &data);
+}
+
+static void render_popup_iterator(struct sway_output *output,
+		struct wlr_surface *surface, struct wlr_box *box, float rotation,
+		void *data) {
+	// Render this popup's surface
+	render_surface_iterator(output, surface, box, rotation, data);
+
+	// Render this popup's child toplevels
+	output_surface_for_each_surface(output, surface, box->x, box->y,
+			render_surface_iterator, data);
+}
+
+static void render_view_popups(struct sway_view *view,
+		struct sway_output *output, pixman_region32_t *damage, float alpha) {
+	struct render_data data = {
+		.damage = damage,
+		.alpha = alpha,
+	};
+	output_view_for_each_popup(output, view, render_popup_iterator, &data);
 }
 
 static void render_saved_view(struct sway_view *view,
@@ -239,7 +262,7 @@ static void render_view(struct sway_output *output, pixman_region32_t *damage,
 	if (view->saved_buffer) {
 		render_saved_view(view, output, damage, view->swayc->alpha);
 	} else {
-		render_view_surfaces(view, output, damage, view->swayc->alpha);
+		render_view_toplevels(view, output, damage, view->swayc->alpha);
 	}
 
 	if (view->using_csd) {
@@ -843,7 +866,7 @@ void output_render(struct sway_output *output, struct timespec *when,
 				render_saved_view(fullscreen_con->sway_view,
 						output, damage, 1.0f);
 			} else {
-				render_view_surfaces(fullscreen_con->sway_view,
+				render_view_toplevels(fullscreen_con->sway_view,
 						output, damage, 1.0f);
 			}
 		} else {
@@ -879,6 +902,12 @@ void output_render(struct sway_output *output, struct timespec *when,
 			&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP]);
 	}
 
+	struct sway_seat *seat = input_manager_current_seat(input_manager);
+	struct sway_container *focus = seat_get_focus(seat);
+	if (focus && focus->type == C_VIEW) {
+		render_view_popups(focus->sway_view, output, damage, focus->alpha);
+	}
+
 render_overlay:
 	render_layer(output, damage,
 		&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY]);
diff --git a/sway/desktop/xdg_shell.c b/sway/desktop/xdg_shell.c
index 9d6b27e5..b364663d 100644
--- a/sway/desktop/xdg_shell.c
+++ b/sway/desktop/xdg_shell.c
@@ -179,6 +179,14 @@ static void for_each_surface(struct sway_view *view,
 		user_data);
 }
 
+static void for_each_popup(struct sway_view *view,
+		wlr_surface_iterator_func_t iterator, void *user_data) {
+	if (xdg_shell_view_from_view(view) == NULL) {
+		return;
+	}
+	wlr_xdg_surface_for_each_popup(view->wlr_xdg_surface, iterator, user_data);
+}
+
 static void _close(struct sway_view *view) {
 	if (xdg_shell_view_from_view(view) == NULL) {
 		return;
@@ -219,6 +227,7 @@ static const struct sway_view_impl view_impl = {
 	.set_fullscreen = set_fullscreen,
 	.wants_floating = wants_floating,
 	.for_each_surface = for_each_surface,
+	.for_each_popup = for_each_popup,
 	.close = _close,
 	.close_popups = close_popups,
 	.destroy = destroy,
diff --git a/sway/desktop/xdg_shell_v6.c b/sway/desktop/xdg_shell_v6.c
index 6e4aae62..ffea03ad 100644
--- a/sway/desktop/xdg_shell_v6.c
+++ b/sway/desktop/xdg_shell_v6.c
@@ -175,6 +175,15 @@ static void for_each_surface(struct sway_view *view,
 		user_data);
 }
 
+static void for_each_popup(struct sway_view *view,
+		wlr_surface_iterator_func_t iterator, void *user_data) {
+	if (xdg_shell_v6_view_from_view(view) == NULL) {
+		return;
+	}
+	wlr_xdg_surface_v6_for_each_popup(view->wlr_xdg_surface_v6, iterator,
+		user_data);
+}
+
 static void _close(struct sway_view *view) {
 	if (xdg_shell_v6_view_from_view(view) == NULL) {
 		return;
@@ -215,6 +224,7 @@ static const struct sway_view_impl view_impl = {
 	.set_fullscreen = set_fullscreen,
 	.wants_floating = wants_floating,
 	.for_each_surface = for_each_surface,
+	.for_each_popup = for_each_popup,
 	.close = _close,
 	.close_popups = close_popups,
 	.destroy = destroy,
diff --git a/sway/input/cursor.c b/sway/input/cursor.c
index d6fdc1da..79f6ec46 100644
--- a/sway/input/cursor.c
+++ b/sway/input/cursor.c
@@ -109,9 +109,6 @@ static struct sway_container *container_at_coords(
 	}
 
 	struct sway_container *c;
-	if ((c = floating_container_at(lx, ly, surface, sx, sy))) {
-		return c;
-	}
 	if ((c = container_at(ws, lx, ly, surface, sx, sy))) {
 		return c;
 	}
diff --git a/sway/tree/container.c b/sway/tree/container.c
index b6ff4d30..b980c5e9 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -569,10 +569,15 @@ static struct sway_container *container_at_view(struct sway_container *swayc,
 		*sx = _sx;
 		*sy = _sy;
 		*surface = _surface;
+		return swayc;
 	}
-	return swayc;
+	return NULL;
 }
 
+static struct sway_container *tiling_container_at(
+		struct sway_container *con, double lx, double ly,
+		struct wlr_surface **surface, double *sx, double *sy);
+
 /**
  * container_at for a container with layout L_TABBED.
  */
@@ -599,7 +604,7 @@ static struct sway_container *container_at_tabbed(struct sway_container *parent,
 	// Surfaces
 	struct sway_container *current = seat_get_active_child(seat, parent);
 
-	return container_at(current, lx, ly, surface, sx, sy);
+	return tiling_container_at(current, lx, ly, surface, sx, sy);
 }
 
 /**
@@ -624,7 +629,7 @@ static struct sway_container *container_at_stacked(
 	// Surfaces
 	struct sway_container *current = seat_get_active_child(seat, parent);
 
-	return container_at(current, lx, ly, surface, sx, sy);
+	return tiling_container_at(current, lx, ly, surface, sx, sy);
 }
 
 /**
@@ -642,45 +647,13 @@ static struct sway_container *container_at_linear(struct sway_container *parent,
 			.height = child->height,
 		};
 		if (wlr_box_contains_point(&box, lx, ly)) {
-			return container_at(child, lx, ly, surface, sx, sy);
+			return tiling_container_at(child, lx, ly, surface, sx, sy);
 		}
 	}
 	return NULL;
 }
 
-struct sway_container *container_at(struct sway_container *parent,
-		double lx, double ly,
-		struct wlr_surface **surface, double *sx, double *sy) {
-	if (!sway_assert(parent->type >= C_WORKSPACE,
-				"Expected workspace or deeper")) {
-		return NULL;
-	}
-	if (parent->type == C_VIEW) {
-		return container_at_view(parent, lx, ly, surface, sx, sy);
-	}
-	if (!parent->children->length) {
-		return NULL;
-	}
-
-	switch (parent->layout) {
-	case L_HORIZ:
-	case L_VERT:
-		return container_at_linear(parent, lx, ly, surface, sx, sy);
-	case L_TABBED:
-		return container_at_tabbed(parent, lx, ly, surface, sx, sy);
-	case L_STACKED:
-		return container_at_stacked(parent, lx, ly, surface, sx, sy);
-	case L_FLOATING:
-		sway_assert(false, "Didn't expect to see floating here");
-		return NULL;
-	case L_NONE:
-		return NULL;
-	}
-
-	return NULL;
-}
-
-struct sway_container *floating_container_at(double lx, double ly,
+static struct sway_container *floating_container_at(double lx, double ly,
 		struct wlr_surface **surface, double *sx, double *sy) {
 	for (int i = 0; i < root_container.children->length; ++i) {
 		struct sway_container *output = root_container.children->items[i];
@@ -702,7 +675,8 @@ struct sway_container *floating_container_at(double lx, double ly,
 					.height = floater->height,
 				};
 				if (wlr_box_contains_point(&box, lx, ly)) {
-					return container_at(floater, lx, ly, surface, sx, sy);
+					return tiling_container_at(floater, lx, ly,
+							surface, sx, sy);
 				}
 			}
 		}
@@ -710,6 +684,90 @@ struct sway_container *floating_container_at(double lx, double ly,
 	return NULL;
 }
 
+static struct sway_container *tiling_container_at(
+		struct sway_container *con, double lx, double ly,
+		struct wlr_surface **surface, double *sx, double *sy) {
+	if (con->type == C_VIEW) {
+		return container_at_view(con, lx, ly, surface, sx, sy);
+	}
+	if (!con->children->length) {
+		return NULL;
+	}
+
+	switch (con->layout) {
+	case L_HORIZ:
+	case L_VERT:
+		return container_at_linear(con, lx, ly, surface, sx, sy);
+	case L_TABBED:
+		return container_at_tabbed(con, lx, ly, surface, sx, sy);
+	case L_STACKED:
+		return container_at_stacked(con, lx, ly, surface, sx, sy);
+	case L_FLOATING:
+		sway_assert(false, "Didn't expect to see floating here");
+		return NULL;
+	case L_NONE:
+		return NULL;
+	}
+	return NULL;
+}
+
+static bool surface_is_popup(struct wlr_surface *surface) {
+	if (wlr_surface_is_xdg_surface(surface)) {
+		struct wlr_xdg_surface *xdg_surface =
+			wlr_xdg_surface_from_wlr_surface(surface);
+		while (xdg_surface) {
+			if (xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP) {
+				return true;
+			}
+			xdg_surface = xdg_surface->toplevel->parent;
+		}
+		return false;
+	}
+
+	if (wlr_surface_is_xdg_surface_v6(surface)) {
+		struct wlr_xdg_surface_v6 *xdg_surface_v6 =
+			wlr_xdg_surface_v6_from_wlr_surface(surface);
+		while (xdg_surface_v6) {
+			if (xdg_surface_v6->role == WLR_XDG_SURFACE_V6_ROLE_POPUP) {
+				return true;
+			}
+			xdg_surface_v6 = xdg_surface_v6->toplevel->parent;
+		}
+		return false;
+	}
+
+	return false;
+}
+
+struct sway_container *container_at(struct sway_container *workspace,
+		double lx, double ly,
+		struct wlr_surface **surface, double *sx, double *sy) {
+	if (!sway_assert(workspace->type == C_WORKSPACE, "Expected a workspace")) {
+		return NULL;
+	}
+	struct sway_container *c;
+	// Focused view's popups
+	struct sway_seat *seat = input_manager_current_seat(input_manager);
+	struct sway_container *focus =
+		seat_get_focus_inactive(seat, &root_container);
+	if (focus && focus->type == C_VIEW) {
+		container_at_view(focus, lx, ly, surface, sx, sy);
+		if (*surface && surface_is_popup(*surface)) {
+			return focus;
+		}
+		*surface = NULL;
+	}
+	// Floating
+	if ((c = floating_container_at(lx, ly, surface, sx, sy))) {
+		return c;
+	}
+	// Tiling
+	if ((c = tiling_container_at(workspace, lx, ly, surface, sx, sy))) {
+		return c;
+	}
+	return NULL;
+}
+
 void container_for_each_descendant_dfs(struct sway_container *container,
 		void (*f)(struct sway_container *container, void *data),
 		void *data) {
diff --git a/sway/tree/view.c b/sway/tree/view.c
index 27a6a8bd..97318daa 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -339,6 +339,16 @@ void view_for_each_surface(struct sway_view *view,
 	}
 }
 
+void view_for_each_popup(struct sway_view *view,
+		wlr_surface_iterator_func_t iterator, void *user_data) {
+	if (!view->surface) {
+		return;
+	}
+	if (view->impl->for_each_popup) {
+		view->impl->for_each_popup(view, iterator, user_data);
+	}
+}
+
 static void view_subsurface_create(struct sway_view *view,
 	struct wlr_subsurface *subsurface);