Simplify surface state, examples, and library installation

1 files changed, 75 insertions, 0 deletions

diff --git a/tests/wayland/test_state.c b/tests/wayland/test_state.c
new file mode 100644
index 0000000..2da26e5
--- /dev/null
+++ b/tests/wayland/test_state.c
@@ -0,0 +1,75 @@
+#include "../../src/platform/wayland/shell.c"
+#include <assert.h>
+
+struct notifications {
+    int count;
+    uint32_t state;
+};
+
+static void state_changed(struct yasl_surface *surface, uint32_t state, void *ud)
+{
+    struct notifications *notifications = ud;
+    assert(yasl_surface_state(surface) == state);
+    notifications->count++;
+    notifications->state = state;
+}
+
+static void configure(struct wayland_surface *surface, uint32_t *states, size_t count)
+{
+    struct wl_array array = {.size = count * sizeof(*states), .data = states};
+    toplevel_configure(surface, NULL, 640, 480, &array);
+    assert(surface->req_width == 640 && surface->req_height == 480);
+}
+
+int main(void)
+{
+    struct notifications notifications = {0};
+    struct wayland_surface surface = {.base.state = YASL_STATE_CSD};
+    wayland_surface_set_callbacks(&surface, &(struct yasl_window_cbs){
+        .state = state_changed}, &notifications);
+    assert(yasl_surface_state(&surface.base) == YASL_STATE_CSD);
+
+    uint32_t fullscreen[] = {XDG_TOPLEVEL_STATE_FULLSCREEN,
+        XDG_TOPLEVEL_STATE_ACTIVATED, XDG_TOPLEVEL_STATE_FULLSCREEN, 31, UINT32_MAX};
+    configure(&surface, fullscreen, sizeof(fullscreen) / sizeof(*fullscreen));
+    assert(notifications.count == 1);
+    assert(notifications.state == (YASL_STATE_CSD | YASL_STATE_FULLSCREEN | YASL_STATE_ACTIVATED));
+    configure(&surface, fullscreen, sizeof(fullscreen) / sizeof(*fullscreen));
+    assert(notifications.count == 1);
+
+    /* Decoration changes preserve the other flags and do not notify twice. */
+    toplevel_decoration_configure(&surface, NULL, ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
+    assert(notifications.count == 2);
+    assert(notifications.state == (YASL_STATE_FULLSCREEN | YASL_STATE_ACTIVATED));
+    toplevel_decoration_configure(&surface, NULL, ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE);
+    assert(notifications.count == 2);
+
+    uint32_t maximized[] = {XDG_TOPLEVEL_STATE_MAXIMIZED, XDG_TOPLEVEL_STATE_SUSPENDED};
+    configure(&surface, maximized, sizeof(maximized) / sizeof(*maximized));
+    assert(notifications.count == 3);
+    assert(notifications.state == (YASL_STATE_MAXIMIZED | YASL_STATE_SUSPENDED));
+    toplevel_decoration_configure(&surface, NULL, ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE);
+    assert(notifications.count == 4);
+    assert(notifications.state == (YASL_STATE_CSD | YASL_STATE_MAXIMIZED | YASL_STATE_SUSPENDED));
+
+    /* Each tiled edge maps to the same portable flag; changing edges alone
+     * leaves the reported state unchanged. */
+    uint32_t edges[] = {XDG_TOPLEVEL_STATE_TILED_LEFT, XDG_TOPLEVEL_STATE_TILED_RIGHT,
+        XDG_TOPLEVEL_STATE_TILED_TOP, XDG_TOPLEVEL_STATE_TILED_BOTTOM};
+    for (size_t i = 0; i < sizeof(edges) / sizeof(*edges); i++) {
+        configure(&surface, &edges[i], 1);
+        assert(notifications.count == 5);
+        assert(notifications.state == (YASL_STATE_CSD | YASL_STATE_TILED));
+    }
+    configure(&surface, edges, 0);
+    assert(notifications.count == 6);
+    assert(notifications.state == YASL_STATE_CSD);
+
+    /* State still advances when applications have not installed callbacks. */
+    wayland_surface_set_callbacks(&surface, NULL, NULL);
+    configure(&surface, fullscreen, sizeof(fullscreen) / sizeof(*fullscreen));
+    assert(yasl_surface_state(&surface.base) ==
+            (YASL_STATE_CSD | YASL_STATE_FULLSCREEN | YASL_STATE_ACTIVATED));
+    assert(notifications.count == 6);
+    return 0;
+}