feat: add transient_seat_v1 implementation

Create separate seats for virtual-pointer and virtual-keyboard

Log:

Author: zzxyb

src/seat/helper.cpp

@@ -90,6 +90,7 @@
 #include <qwidleinhibitv1.h>
 #include <qwalphamodifierv1.h>
 #include <qwdrm.h>
+#include <qwtransientseatv1.h>
 
 #include <QAction>
 #include <QKeySequence>
@@ -1098,6 +1099,20 @@ void Helper::init()
     qw_data_control_manager_v1::create(*m_server->handle());
     qw_ext_data_control_manager_v1::create(*m_server->handle(), EXT_DATA_CONTROL_MANAGER_V1_VERSION);
     qw_alpha_modifier_v1::create(*m_server->handle());
+    connect(m_transientSeatManager, &qw_transient_seat_manager_v1::notify_create_seat, this, [this](wlr_transient_seat_v1 *transientSeat) {
+        qw_transient_seat_v1 *qwTransientSeat = qw_transient_seat_v1::from(transientSeat);
+        static uint64_t i = 0;
+        QString name = QStringLiteral("transient-%1").arg(m_transientSeatCounter++, 0, 10);
+        WSeat *seat = new WSeat(name);
+        if (seat && seat->nativeHandle()) {
+            connect(seat->handle(), &qw_seat::before_destroy, this, [this, seat]{
+                seat->safeDeleteLater();
+            });
+            qwTransientSeat->ready(seat->nativeHandle());
+        } else {
+            qwTransientSeat->deny();
+        }
+    });
 
     m_dockPreview = engine->createDockPreview(m_renderWindow->contentItem());
 

src/seat/helper.h

@@ -63,6 +63,7 @@ class qw_idle_inhibit_manager_v1;
 class qw_output_configuration_v1;
 class qw_output_power_manager_v1;
 class qw_idle_inhibitor_v1;
+class qw_transient_seat_manager_v1;
 QW_END_NAMESPACE
 
 WAYLIB_SERVER_USE_NAMESPACE
@@ -318,6 +319,7 @@ private Q_SLOTS:
     WBackend *m_backend = nullptr;
     qw_renderer *m_renderer = nullptr;
     qw_allocator *m_allocator = nullptr;
+    qw_transient_seat_manager_v1 *m_transientSeatManager = nullptr;
 
     // protocols
     qw_compositor *m_compositor = nullptr;
@@ -366,4 +368,5 @@ private Q_SLOTS:
     UserModel *m_userModel{ nullptr };
 
     quint32 m_atomDeepinNoTitlebar;
+    u_int64_t m_transientSeatCounter = 0;
 };