Wayland mouse support

Fix moving items with mouse when captured on macOS
2021-12-02 16:26:33 +06:00
parent 54ae64d2ac
commit fc9d73b541
10 changed files with 636 additions and 5 deletions
--- a/src/qt/wl_mouse.cpp
+++ b/src/qt/wl_mouse.cpp
@@ -0,0 +1,89 @@
+#include "wl_mouse.hpp"
+#include <QGuiApplication>
+#include <wayland-client-core.h>
+#include <wayland-client-protocol.h>
+#include <wayland-relative-pointer-unstable-v1-client-protocol.h>
+#include <wayland-pointer-constraints-unstable-v1-client-protocol.h>
+
+#include <qpa/qplatformnativeinterface.h>
+#include <QWindow>
+#include <QGuiApplication>
+
+static zwp_relative_pointer_manager_v1* rel_manager = nullptr;
+static zwp_relative_pointer_v1* rel_pointer = nullptr;
+static zwp_pointer_constraints_v1* conf_pointer_interface = nullptr;
+static zwp_locked_pointer_v1* conf_pointer = nullptr;
+
+static int rel_mouse_x = 0, rel_mouse_y = 0;
+
+void rel_mouse_event(void* data, zwp_relative_pointer_v1* zwp_relative_pointer_v1, uint32_t tstmp, uint32_t tstmpl, wl_fixed_t dx, wl_fixed_t dy, wl_fixed_t dx_real, wl_fixed_t dy_real)
+{
+    rel_mouse_x += wl_fixed_to_int(dx_real);
+    rel_mouse_y += wl_fixed_to_int(dy_real);
+}
+
+extern "C"
+{
+    extern int mouse_x, mouse_y;
+}
+
+void wl_mouse_poll()
+{
+    mouse_x = rel_mouse_x;
+    mouse_y = rel_mouse_y;
+    rel_mouse_x = 0;
+    rel_mouse_y = 0;
+}
+
+static struct zwp_relative_pointer_v1_listener rel_listener = 
+{
+    rel_mouse_event
+};
+
+static void
+display_handle_global(void *data, struct wl_registry *registry, uint32_t id,
+                      const char *interface, uint32_t version)
+{
+    if (!strcmp(interface, "zwp_relative_pointer_manager_v1"))
+    {
+        rel_manager = (zwp_relative_pointer_manager_v1*)wl_registry_bind(registry, id, &zwp_relative_pointer_manager_v1_interface, version);
+    }
+    if (!strcmp(interface, "zwp_pointer_constraints_v1"))
+    {
+        conf_pointer_interface = (zwp_pointer_constraints_v1*)wl_registry_bind(registry, id, &zwp_pointer_constraints_v1_interface, version);
+    }
+}
+
+static const struct wl_registry_listener registry_listener = {
+    display_handle_global,
+    nullptr
+};
+
+void wl_init()
+{
+    wl_display* display = (wl_display*)QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("wl_display");
+    if (display)
+    {
+        auto registry = wl_display_get_registry(display);
+        if (registry)
+        {
+            wl_registry_add_listener(registry, &registry_listener, nullptr);
+            wl_display_roundtrip(display);
+        }
+    }
+}
+
+void wl_mouse_capture(QWindow *window)
+{
+    rel_pointer = zwp_relative_pointer_manager_v1_get_relative_pointer(rel_manager, (wl_pointer*)QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("wl_pointer"));
+    zwp_relative_pointer_v1_add_listener(rel_pointer, &rel_listener, nullptr);
+    conf_pointer = zwp_pointer_constraints_v1_lock_pointer(conf_pointer_interface, (wl_surface*)QGuiApplication::platformNativeInterface()->nativeResourceForWindow("surface", window), (wl_pointer*)QGuiApplication::platformNativeInterface()->nativeResourceForIntegration("wl_pointer"), nullptr, ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
+}
+
+void wl_mouse_uncapture()
+{
+    zwp_locked_pointer_v1_destroy(conf_pointer);
+    zwp_relative_pointer_v1_destroy(rel_pointer);
+    rel_pointer = nullptr;
+    conf_pointer = nullptr;
+}