DRY up focus and implement z ordering

include/rootston/desktop.h

@@ -8,6 +8,7 @@
 #include <wlr/types/wlr_wl_shell.h>
 #include <wlr/types/wlr_xdg_shell_v6.h>
 #include <wlr/types/wlr_gamma_control.h>
+#include <wlr/util/list.h>
 #include "rootston/view.h"
 #include "rootston/config.h"
 
@@ -21,7 +22,7 @@ struct roots_output {
 };
 
 struct roots_desktop {
-	struct wl_list views;
+	list_t *views;
 
 	struct wl_list outputs;
 	struct timespec last_frame;

include/rootston/input.h

@@ -106,5 +106,9 @@ void cursor_load_config(struct roots_config *config,
 		struct wlr_cursor *cursor,
 		struct roots_input *input,
 		struct roots_desktop *desktop);
+const struct roots_input_event *get_input_event(struct roots_input *input,
+		uint32_t serial);
+void view_begin_move(struct roots_input *input, struct wlr_cursor *cursor,
+		struct roots_view *view);
 
 #endif

include/rootston/view.h

@@ -56,7 +56,6 @@ struct roots_view {
 		struct roots_xwayland_surface *roots_xwayland_surface;
 	};
 	struct wlr_surface *wlr_surface;
-	struct wl_list link;
 	// TODO: This would probably be better as a field that's updated on a
 	// configure event from the xdg_shell
 	// If not then this should follow the typical type/impl pattern we use

rootston/cursor.c

@@ -9,6 +9,26 @@
 #include "rootston/input.h"
 #include "rootston/desktop.h"
 
+const struct roots_input_event *get_input_event(struct roots_input *input,
+		uint32_t serial) {
+	size_t len = sizeof(input->input_events) / sizeof(*input->input_events);
+	for (size_t i = 0; i < len; ++i) {
+		if (input->input_events[i].cursor
+				&& input->input_events[i].serial == serial) {
+			return &input->input_events[i];
+		}
+	}
+	return NULL;
+}
+
+void view_begin_move(struct roots_input *input, struct wlr_cursor *cursor,
+		struct roots_view *view) {
+	input->mode = ROOTS_CURSOR_MOVE;
+	input->offs_x = cursor->x - view->x;
+	input->offs_y = cursor->y - view->y;
+	wlr_seat_pointer_clear_focus(input->wl_seat);
+}
+
 void cursor_update_position(struct roots_input *input, uint32_t time) {
 	struct roots_desktop *desktop = input->server->desktop;
 	struct roots_view *view;
@@ -44,12 +64,19 @@ static void set_view_focus(struct roots_input *input,
 	if (input->active_view == view) {
 		return;
 	}
-	struct roots_view *_view;
-	wl_list_for_each(_view, &desktop->views, link) {
+	size_t index = 0;
+	for (size_t i = 0; i < desktop->views->length; ++i) {
+		struct roots_view *_view = desktop->views->items[i];
 		view_activate(_view, _view == view);
+		if (view == _view) {
+			index = i;
+		}
 	}
 	input->active_view = view;
 	input->mode = ROOTS_CURSOR_PASSTHROUGH;
+	// TODO: list_swap
+	list_del(desktop->views, index);
+	list_add(desktop->views, view);
 }
 
 static void handle_cursor_motion(struct wl_listener *listener, void *data) {

rootston/desktop.c

@@ -1,4 +1,5 @@
 #define _POSIX_C_SOURCE 199309L
+#include <assert.h>
 #include <time.h>
 #include <stdlib.h>
 #include <wlr/types/wlr_box.h>
@@ -13,7 +14,14 @@
 #include "rootston/server.h"
 
 void view_destroy(struct roots_view *view) {
-	wl_list_remove(&view->link);
+	struct roots_desktop *desktop = view->desktop;
+	for (size_t i = 0; i < desktop->views->length; ++i) {
+		struct roots_view *_view = desktop->views->items[i];
+		if (view == _view) {
+			list_del(desktop->views, i);
+			break;
+		}
+	}
 	free(view);
 }
 
@@ -34,8 +42,8 @@ void view_activate(struct roots_view *view, bool activate) {
 }
 
 struct roots_view *view_at(struct roots_desktop *desktop, int x, int y) {
-	struct roots_view *view;
-	wl_list_for_each(view, &desktop->views, link) {
+	for (size_t i = 0; i < desktop->views->length; ++i) {
+		struct roots_view *view = desktop->views->items[i];
 		struct wlr_box box;
 		view_get_input_bounds(view, &box);
 		box.x += view->x;
@@ -52,7 +60,7 @@ struct roots_desktop *desktop_create(struct roots_server *server,
 	struct roots_desktop *desktop = calloc(1, sizeof(struct roots_desktop));
 	wlr_log(L_DEBUG, "Initializing roots desktop");
 
-	wl_list_init(&desktop->views);
+	assert(desktop->views = list_create());
 	wl_list_init(&desktop->outputs);
 	wl_list_init(&desktop->output_add.link);
 	desktop->output_add.notify = output_add_notify;

rootston/output.c

@@ -50,8 +50,8 @@ static void output_frame_notify(struct wl_listener *listener, void *data) {
 	wlr_output_make_current(wlr_output);
 	wlr_renderer_begin(server->renderer, wlr_output);
 
-	struct roots_view *view;
-	wl_list_for_each(view, &desktop->views, link) {
+	for (size_t i = 0; i < desktop->views->length; ++i) {
+		struct roots_view *view = desktop->views->items[i];
 		int width = view->wlr_surface->current.buffer_width;
 		int height = view->wlr_surface->current.buffer_height;
 

rootston/wl_shell.c

@@ -16,24 +16,11 @@ static void handle_move(struct wl_listener *listener, void *data) {
 	struct roots_view *view = roots_surface->view;
 	struct roots_input *input = view->desktop->server->input;
 	struct wlr_wl_shell_surface_move_event *e = data;
-
-	// TODO: Some of this might want to live in cursor.c I guess
-	struct roots_input_event *event = NULL;
-	size_t len = sizeof(input->input_events) / sizeof(*input->input_events);
-	for (size_t i = 0; i < len; ++i) {
-		if (input->input_events[i].cursor
-				&& input->input_events[i].serial == e->serial) {
-			event = &input->input_events[i];
-			break;
-		}
-	}
+	const struct roots_input_event *event = get_input_event(input, e->serial);
 	if (!event || input->mode != ROOTS_CURSOR_PASSTHROUGH) {
 		return;
 	}
-	input->mode = ROOTS_CURSOR_MOVE;
-	input->offs_x = input->cursor->x - view->x;
-	input->offs_y = input->cursor->y - view->y;
-	wlr_seat_pointer_clear_focus(input->wl_seat);
+	view_begin_move(input, event->cursor, view);
 }
 
 static void handle_destroy(struct wl_listener *listener, void *data) {
@@ -80,5 +67,5 @@ void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
 	view->wlr_surface = surface->surface;
 	view->desktop = desktop;
 	roots_surface->view = view;
-	wl_list_insert(&desktop->views, &view->link);
+	list_add(desktop->views, view);
 }

rootston/xdg_shell_v6.c

@@ -30,24 +30,11 @@ static void handle_request_move(struct wl_listener *listener, void *data) {
 	struct roots_view *view = roots_xdg_surface->view;
 	struct roots_input *input = view->desktop->server->input;
 	struct wlr_xdg_toplevel_v6_move_event *e = data;
-
-	// TODO: Some of this might want to live in cursor.c I guess
-	struct roots_input_event *event = NULL;
-	size_t len = sizeof(input->input_events) / sizeof(*input->input_events);
-	for (size_t i = 0; i < len; ++i) {
-		if (input->input_events[i].cursor
-				&& input->input_events[i].serial == e->serial) {
-			event = &input->input_events[i];
-			break;
-		}
-	}
+	const struct roots_input_event *event = get_input_event(input, e->serial);
 	if (!event || input->mode != ROOTS_CURSOR_PASSTHROUGH) {
 		return;
 	}
-	input->mode = ROOTS_CURSOR_MOVE;
-	input->offs_x = input->cursor->x - view->x;
-	input->offs_y = input->cursor->y - view->y;
-	wlr_seat_pointer_clear_focus(input->wl_seat);
+	view_begin_move(input, event->cursor, view);
 }
 
 static void handle_destroy(struct wl_listener *listener, void *data) {
@@ -96,5 +83,5 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	view->activate = activate;
 	view->desktop = desktop;
 	roots_surface->view = view;
-	wl_list_insert(&desktop->views, &view->link);
+	list_add(desktop->views, view);
 }

rootston/xwayland.c

@@ -45,5 +45,5 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 	view->desktop = desktop;
 	view->activate = x11_activate;
 	roots_surface->view = view;
-	wl_list_insert(&desktop->views, &view->link);
+	list_add(desktop->views, view);
 }