feat: add type-safe native platform headers and portable drag support

- Add include/yasl/native/{wayland,cocoa,x11}.h with type-safe handle accessors.
- Unify drag-and-drop and window carry support across Wayland, X11, and Cocoa.
- Preserve full ABI compatibility for capability flags.
- Install native headers conditionally based on enabled backend.
- Include missing tablet example and backend test suites.

1 files changed, 92 insertions, 0 deletions

diff --git a/tests/x11/inputtest-protocol.h b/tests/x11/inputtest-protocol.h
new file mode 100644
index 0000000..18f62ba
--- /dev/null
+++ b/tests/x11/inputtest-protocol.h
@@ -0,0 +1,92 @@
+/* Subset of Xorg's xf86-input-inputtest protocol 1.1 used by this test.
+ * https://www.x.org/releases/individual/xserver/xorg-server-21.1.25.tar.xz
+ *
+ * Copyright © 2020 Povilas Kanapickas <povilas@radix.lt>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of Red Hat
+ * not be used in advertising or publicity pertaining to distribution
+ * of the software without specific, written prior permission. Red
+ * Hat makes no representations about the suitability of this software
+ * for any purpose. It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+ * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef YASL_TEST_INPUTTEST_PROTOCOL_H
+#define YASL_TEST_INPUTTEST_PROTOCOL_H
+
+#include <stdint.h>
+
+enum xf86ITResponseType {
+    XF86IT_RESPONSE_SERVER_VERSION,
+    XF86IT_RESPONSE_SYNC_FINISHED,
+};
+
+typedef struct {
+    uint32_t length;
+    enum xf86ITResponseType type;
+} xf86ITResponseHeader;
+
+typedef struct {
+    xf86ITResponseHeader header;
+    uint16_t major, minor;
+} xf86ITResponseServerVersion;
+
+enum xf86ITEventType {
+    XF86IT_EVENT_CLIENT_VERSION,
+    XF86IT_EVENT_WAIT_FOR_SYNC,
+    XF86IT_EVENT_MOTION,
+    XF86IT_EVENT_PROXIMITY,
+    XF86IT_EVENT_BUTTON,
+};
+
+typedef struct {
+    uint32_t length;
+    enum xf86ITEventType type;
+} xf86ITEventHeader;
+
+typedef struct {
+    uint32_t has_unaccelerated;
+    uint8_t mask[8];
+    double valuators[64];
+    double unaccelerated[64];
+} xf86ITValuatorData;
+
+typedef struct {
+    xf86ITEventHeader header;
+    uint16_t major, minor;
+} xf86ITEventClientVersion;
+
+typedef struct { xf86ITEventHeader header; } xf86ITEventWaitForSync;
+
+typedef struct {
+    xf86ITEventHeader header;
+    uint32_t is_absolute;
+    xf86ITValuatorData valuators;
+} xf86ITEventMotion;
+
+typedef struct {
+    xf86ITEventHeader header;
+    uint32_t is_prox_in;
+    xf86ITValuatorData valuators;
+} xf86ITEventProximity;
+
+typedef struct {
+    xf86ITEventHeader header;
+    int32_t is_absolute;
+    int32_t button;
+    uint32_t is_press;
+    xf86ITValuatorData valuators;
+} xf86ITEventButton;
+
+#endif