better public interface and doxygen

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/wayland/test_tablet.c b/tests/wayland/test_tablet.c
index 449c446..f8982b0 100644
--- a/tests/wayland/test_tablet.c
+++ b/tests/wayland/test_tablet.c
@@ -50,6 +50,7 @@ int main(void)
     tool_frame(&tool, NULL, 0);
     ev = next(&surface);
     assert(ev.kind == YASL_PTR_SCROLL && ev.device == YASL_PTR_DEV_ERASER);
+    assert(ev.scroll.x == 0 && ev.scroll.y == 1);
     tablet_tool_proximity_out(&tool, NULL);
     ev = next(&surface);
     assert(ev.kind == YASL_PTR_LEAVE && ev.device == YASL_PTR_DEV_ERASER && !ev.pen.pressure);
@@ -57,6 +58,42 @@ int main(void)
     assert(!(yasl_display_caps(&display.base) & YASL_CAP_TABLET));
     display.tablet_mgr = (void *)&display; /* Capability depends on protocol availability. */
     assert(yasl_display_caps(&display.base) & YASL_CAP_TABLET);
+
+    seat.pointer_focus = &surface;
+    /* A compositor may describe the same detent in three ways. value120 wins,
+     * and both axes belong to one event, without whole-line truncation. */
+    pointer_axis(&seat, NULL, 0, WL_POINTER_AXIS_VERTICAL_SCROLL, wl_fixed_from_int(10));
+    pointer_axis_discrete(&seat, NULL, WL_POINTER_AXIS_VERTICAL_SCROLL, 1);
+    pointer_axis_value120(&seat, NULL, WL_POINTER_AXIS_VERTICAL_SCROLL, 30);
+    pointer_axis_value120(&seat, NULL, WL_POINTER_AXIS_HORIZONTAL_SCROLL, -60);
+    pointer_frame(&seat, NULL);
+    ev = next(&surface);
+    assert(ev.kind == YASL_PTR_SCROLL && ev.device == YASL_PTR_DEV_MOUSE);
+    assert(ev.scroll.x == -0.5 && ev.scroll.y == 0.25);
+    struct yasl_input_event unused;
+    assert(!yasl_surface_input_poll(&surface.base, &unused));
+    pointer_frame(&seat, NULL);
+    assert(!yasl_surface_input_poll(&surface.base, &unused));
+
+    /* Stops preserve offsets from the same frame. Repeated tiny movements
+     * must be visible immediately rather than held until a whole detent. */
+    for (int i = 0; i < 3; i++) {
+        pointer_axis_source(&seat, NULL, WL_POINTER_AXIS_SOURCE_FINGER);
+        pointer_axis(&seat, NULL, 0, WL_POINTER_AXIS_VERTICAL_SCROLL, wl_fixed_from_double(1.25));
+        pointer_axis(&seat, NULL, 0, WL_POINTER_AXIS_HORIZONTAL_SCROLL, wl_fixed_from_double(-2.5));
+        pointer_axis_stop(&seat, NULL, 0, WL_POINTER_AXIS_VERTICAL_SCROLL);
+        pointer_frame(&seat, NULL);
+        ev = next(&surface);
+        assert(ev.scroll.x == -0.25 && ev.scroll.y == 0.125);
+    }
+    pointer_axis_discrete(&seat, NULL, WL_POINTER_AXIS_HORIZONTAL_SCROLL, 2);
+    pointer_frame(&seat, NULL);
+    ev = next(&surface);
+    assert(ev.scroll.x == 2 && ev.scroll.y == 0);
+    pointer_axis_value120(&seat, NULL, WL_POINTER_AXIS_VERTICAL_SCROLL, 60);
+    seat_pointer_reset(&seat);
+    pointer_frame(&seat, NULL);
+    assert(!yasl_surface_input_poll(&surface.base, &unused));
     input_queue_clear(&surface.input);
     return 0;
 }