protocols: implement pointer-warp-v1 (#11469)

1 files changed, 53 insertions, 0 deletions

diff --git a/src/protocols/PointerWarp.cpp b/src/protocols/PointerWarp.cpp
new file mode 100644
index 00000000..bde0b913
--- /dev/null
+++ b/src/protocols/PointerWarp.cpp
@@ -0,0 +1,53 @@
+#include "PointerWarp.hpp"
+#include "core/Compositor.hpp"
+#include "core/Seat.hpp"
+#include "../desktop/WLSurface.hpp"
+#include "../managers/SeatManager.hpp"
+#include "../managers/PointerManager.hpp"
+#include "../desktop/Window.hpp"
+
+CPointerWarpProtocol::CPointerWarpProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
+    ;
+}
+
+void CPointerWarpProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
+    const auto& RESOURCE = m_managers.emplace_back(makeUnique<CWpPointerWarpV1>(client, ver, id));
+
+    if UNLIKELY (!RESOURCE->resource()) {
+        wl_client_post_no_memory(client);
+        m_managers.pop_back();
+        return;
+    }
+
+    RESOURCE->setOnDestroy([this](CWpPointerWarpV1* pMgr) { destroyManager(pMgr); });
+    RESOURCE->setDestroy([this](CWpPointerWarpV1* pMgr) { destroyManager(pMgr); });
+
+    RESOURCE->setWarpPointer([](CWpPointerWarpV1* pMgr, wl_resource* surface, wl_resource* pointer, wl_fixed_t x, wl_fixed_t y, uint32_t serial) {
+        const auto PSURFACE = CWLSurfaceResource::fromResource(surface);
+        if (g_pSeatManager->m_state.pointerFocus != PSURFACE)
+            return;
+
+        auto SURFBOXV = CWLSurface::fromResource(PSURFACE)->getSurfaceBoxGlobal();
+        if (!SURFBOXV.has_value())
+            return;
+
+        const auto SURFBOX   = SURFBOXV->expand(1);
+        const auto LOCALPOS  = Vector2D{wl_fixed_to_double(x), wl_fixed_to_double(y)};
+        const auto GLOBALPOS = LOCALPOS + SURFBOX.pos();
+        if (!SURFBOX.containsPoint(GLOBALPOS))
+            return;
+
+        const auto PSEAT = CWLPointerResource::fromResource(pointer)->m_owner.lock();
+        if (!g_pSeatManager->serialValid(PSEAT, serial, false))
+            return;
+
+        LOGM(LOG, "warped pointer to {}", GLOBALPOS);
+
+        g_pPointerManager->warpTo(GLOBALPOS);
+        g_pSeatManager->sendPointerMotion(Time::millis(Time::steadyNow()), LOCALPOS);
+    });
+}
+
+void CPointerWarpProtocol::destroyManager(CWpPointerWarpV1* manager) {
+    std::erase_if(m_managers, [&](const UP<CWpPointerWarpV1>& resource) { return resource.get() == manager; });
+}