internal: new shared_ptr and weak_ptr implementation (#5883)

moves std::shared_ptrs to a new implementation

Advantages:
- you can dereference a weak_ptr directly. This will obviously segfault on a nullptr deref if it's expired.
   - this is useful to avoid the .lock() hell where we are 100% sure the pointer _should_ be valid. (and if it isn't, it should throw.)
- weak_ptrs are still valid while the SP is being destroyed.
   - reasoning: while an object (e.g. CWindow) is being destroyed, its `weak_ptr self` should be accessible (the sp is still alive, and so is CWindow), but it's not because by stl it's already expired (to prevent resurrection)
   - this impl solves it differently. w_p is expired, but can still be dereferenced and used. Creating `s_p`s is not possible anymore, though.
   - this is useful in destructors and callbacks.

1 files changed, 9 insertions, 10 deletions

diff --git a/src/managers/input/Touch.cpp b/src/managers/input/Touch.cpp
index 8f6e2226..7b0d6190 100644
--- a/src/managers/input/Touch.cpp
+++ b/src/managers/input/Touch.cpp
@@ -38,7 +38,7 @@ void CInputManager::onTouchDown(wlr_touch_down_event* e) {
     if (m_sActiveSwipe.pWorkspaceBegin) {
         return;
         // TODO: Don't swipe if you touched a floating window.
-    } else if (*PSWIPETOUCH && (m_pFoundLSToFocus.expired() || m_pFoundLSToFocus.lock()->layer <= ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM)) {
+    } else if (*PSWIPETOUCH && (m_pFoundLSToFocus.expired() || m_pFoundLSToFocus->layer <= ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM)) {
         const auto PWORKSPACE = PMONITOR->activeWorkspace;
         const bool VERTANIMS  = PWORKSPACE->m_vRenderOffset.getConfig()->pValues->internalStyle == "slidevert" ||
             PWORKSPACE->m_vRenderOffset.getConfig()->pValues->internalStyle.starts_with("slidefadevert");
@@ -67,16 +67,15 @@ void CInputManager::onTouchDown(wlr_touch_down_event* e) {
     Vector2D local;
 
     if (!m_sTouchData.touchFocusWindow.expired()) {
-        if (m_sTouchData.touchFocusWindow.lock()->m_bIsX11) {
-            local = (g_pInputManager->getMouseCoordsInternal() - m_sTouchData.touchFocusWindow.lock()->m_vRealPosition.goal()) *
-                m_sTouchData.touchFocusWindow.lock()->m_fX11SurfaceScaledBy;
-            m_sTouchData.touchSurfaceOrigin = m_sTouchData.touchFocusWindow.lock()->m_vRealPosition.goal();
+        if (m_sTouchData.touchFocusWindow->m_bIsX11) {
+            local = (g_pInputManager->getMouseCoordsInternal() - m_sTouchData.touchFocusWindow->m_vRealPosition.goal()) * m_sTouchData.touchFocusWindow->m_fX11SurfaceScaledBy;
+            m_sTouchData.touchSurfaceOrigin = m_sTouchData.touchFocusWindow->m_vRealPosition.goal();
         } else {
             g_pCompositor->vectorWindowToSurface(g_pInputManager->getMouseCoordsInternal(), m_sTouchData.touchFocusWindow.lock(), local);
             m_sTouchData.touchSurfaceOrigin = g_pInputManager->getMouseCoordsInternal() - local;
         }
     } else if (!m_sTouchData.touchFocusLS.expired()) {
-        local = g_pInputManager->getMouseCoordsInternal() - m_sTouchData.touchFocusLS.lock()->geometry.pos();
+        local = g_pInputManager->getMouseCoordsInternal() - m_sTouchData.touchFocusLS->geometry.pos();
 
         m_sTouchData.touchSurfaceOrigin = g_pInputManager->getMouseCoordsInternal() - local;
     } else {
@@ -130,18 +129,18 @@ void CInputManager::onTouchMove(wlr_touch_motion_event* e) {
         return;
     }
     if (validMapped(m_sTouchData.touchFocusWindow)) {
-        const auto PMONITOR = g_pCompositor->getMonitorFromID(m_sTouchData.touchFocusWindow.lock()->m_iMonitorID);
+        const auto PMONITOR = g_pCompositor->getMonitorFromID(m_sTouchData.touchFocusWindow->m_iMonitorID);
 
         wlr_cursor_warp(g_pCompositor->m_sWLRCursor, nullptr, PMONITOR->vecPosition.x + e->x * PMONITOR->vecSize.x, PMONITOR->vecPosition.y + e->y * PMONITOR->vecSize.y);
 
         auto local = g_pInputManager->getMouseCoordsInternal() - m_sTouchData.touchSurfaceOrigin;
-        if (m_sTouchData.touchFocusWindow.lock()->m_bIsX11)
-            local = local * m_sTouchData.touchFocusWindow.lock()->m_fX11SurfaceScaledBy;
+        if (m_sTouchData.touchFocusWindow->m_bIsX11)
+            local = local * m_sTouchData.touchFocusWindow->m_fX11SurfaceScaledBy;
 
         wlr_seat_touch_notify_motion(g_pCompositor->m_sSeat.seat, e->time_msec, e->touch_id, local.x, local.y);
         // wlr_seat_pointer_notify_motion(g_pCompositor->m_sSeat.seat, e->time_msec, local.x, local.y);
     } else if (!m_sTouchData.touchFocusLS.expired()) {
-        const auto PMONITOR = g_pCompositor->getMonitorFromID(m_sTouchData.touchFocusLS.lock()->monitorID);
+        const auto PMONITOR = g_pCompositor->getMonitorFromID(m_sTouchData.touchFocusLS->monitorID);
 
         wlr_cursor_warp(g_pCompositor->m_sWLRCursor, nullptr, PMONITOR->vecPosition.x + e->x * PMONITOR->vecSize.x, PMONITOR->vecPosition.y + e->y * PMONITOR->vecSize.y);