protocols: add Hyprland toplevel mapping implementation (#9775)

src/protocols/ForeignToplevel.cpp

@@ -6,6 +6,8 @@ CForeignToplevelHandle::CForeignToplevelHandle(SP<CExtForeignToplevelHandleV1> r
     if UNLIKELY (!resource_->resource())
         return;
 
+    resource->setData(this);
+
     resource->setOnDestroy([this](CExtForeignToplevelHandleV1* h) { PROTO::foreignToplevel->destroyHandle(this); });
     resource->setDestroy([this](CExtForeignToplevelHandleV1* h) { PROTO::foreignToplevel->destroyHandle(this); });
 }
@@ -168,3 +170,8 @@ void CForeignToplevelProtocol::destroyHandle(CForeignToplevelHandle* handle) {
 bool CForeignToplevelProtocol::windowValidForForeign(PHLWINDOW pWindow) {
     return validMapped(pWindow) && !pWindow->isX11OverrideRedirect();
 }
+
+PHLWINDOW CForeignToplevelProtocol::windowFromHandleResource(wl_resource* res) {
+    auto data = (CForeignToplevelHandle*)(((CExtForeignToplevelHandleV1*)wl_resource_get_user_data(res))->data());
+    return data ? data->window() : nullptr;
+}

src/protocols/ForeignToplevel.hpp

@@ -3,6 +3,7 @@
 #include <vector>
 #include <unordered_map>
 #include "WaylandProtocol.hpp"
+#include "desktop/DesktopTypes.hpp"
 #include "ext-foreign-toplevel-list-v1.hpp"
 
 class CForeignToplevelHandle {
@@ -18,6 +19,7 @@ class CForeignToplevelHandle {
     bool                            closed = false;
 
     friend class CForeignToplevelList;
+    friend class CForeignToplevelProtocol;
 };
 
 class CForeignToplevelList {
@@ -43,6 +45,7 @@ class CForeignToplevelList {
 class CForeignToplevelProtocol : public IWaylandProtocol {
   public:
     CForeignToplevelProtocol(const wl_interface* iface, const int& ver, const std::string& name);
+    PHLWINDOW    windowFromHandleResource(wl_resource* res);
 
     virtual void bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id);
 

src/protocols/ForeignToplevelWlr.cpp

@@ -10,6 +10,8 @@ CForeignToplevelHandleWlr::CForeignToplevelHandleWlr(SP<CZwlrForeignToplevelHand
     if UNLIKELY (!resource_->resource())
         return;
 
+    resource->setData(this);
+
     resource->setOnDestroy([this](CZwlrForeignToplevelHandleV1* h) { PROTO::foreignToplevelWlr->destroyHandle(this); });
     resource->setDestroy([this](CZwlrForeignToplevelHandleV1* h) { PROTO::foreignToplevelWlr->destroyHandle(this); });
 
@@ -420,14 +422,8 @@ void CForeignToplevelWlrProtocol::destroyHandle(CForeignToplevelHandleWlr* handl
 }
 
 PHLWINDOW CForeignToplevelWlrProtocol::windowFromHandleResource(wl_resource* res) {
-    for (auto const& h : m_vHandles) {
-        if (h->res() != res)
-            continue;
-
-        return h->window();
-    }
-
-    return nullptr;
+    auto data = (CForeignToplevelHandleWlr*)(((CZwlrForeignToplevelHandleV1*)wl_resource_get_user_data(res))->data());
+    return data ? data->window() : nullptr;
 }
 
 bool CForeignToplevelWlrProtocol::windowValidForForeign(PHLWINDOW pWindow) {

src/protocols/ToplevelMapping.cpp

@@ -0,0 +1,78 @@
+#include "ToplevelMapping.hpp"
+#include "hyprland-toplevel-mapping-v1.hpp"
+#include "ForeignToplevelWlr.hpp"
+#include "ForeignToplevel.hpp"
+
+CToplevelWindowMappingHandle::CToplevelWindowMappingHandle(SP<CHyprlandToplevelWindowMappingHandleV1> resource_) : resource(resource_) {}
+
+CToplevelMappingManager::CToplevelMappingManager(SP<CHyprlandToplevelMappingManagerV1> resource_) : resource(resource_) {
+    if UNLIKELY (!resource_->resource())
+        return;
+
+    resource->setOnDestroy([this](CHyprlandToplevelMappingManagerV1* h) { PROTO::toplevelMapping->onManagerResourceDestroy(this); });
+    resource->setDestroy([this](CHyprlandToplevelMappingManagerV1* h) { PROTO::toplevelMapping->onManagerResourceDestroy(this); });
+
+    resource->setGetWindowForToplevel([this](CHyprlandToplevelMappingManagerV1* mgr, uint32_t handle, wl_resource* toplevel) {
+        const auto NEWHANDLE = PROTO::toplevelMapping->m_vHandles.emplace_back(
+            makeShared<CToplevelWindowMappingHandle>(makeShared<CHyprlandToplevelWindowMappingHandleV1>(resource->client(), resource->version(), handle)));
+
+        if UNLIKELY (!NEWHANDLE->resource->resource()) {
+            LOGM(ERR, "Couldn't alloc mapping handle! (no memory)");
+            resource->noMemory();
+            return;
+        }
+
+        NEWHANDLE->resource->setOnDestroy([](CHyprlandToplevelWindowMappingHandleV1* h) { PROTO::toplevelMapping->destroyHandle(h); });
+        NEWHANDLE->resource->setDestroy([](CHyprlandToplevelWindowMappingHandleV1* h) { PROTO::toplevelMapping->destroyHandle(h); });
+
+        const auto WINDOW = PROTO::foreignToplevel->windowFromHandleResource(toplevel);
+        if (!WINDOW)
+            NEWHANDLE->resource->sendFailed();
+        else
+            NEWHANDLE->resource->sendWindowAddress((uint64_t)WINDOW.get() >> 32 & 0xFFFFFFFF, (uint64_t)WINDOW.get() & 0xFFFFFFFF);
+    });
+    resource->setGetWindowForToplevelWlr([this](CHyprlandToplevelMappingManagerV1* mgr, uint32_t handle, wl_resource* toplevel) {
+        const auto NEWHANDLE = PROTO::toplevelMapping->m_vHandles.emplace_back(
+            makeShared<CToplevelWindowMappingHandle>(makeShared<CHyprlandToplevelWindowMappingHandleV1>(resource->client(), resource->version(), handle)));
+
+        if UNLIKELY (!NEWHANDLE->resource->resource()) {
+            LOGM(ERR, "Couldn't alloc mapping handle! (no memory)");
+            resource->noMemory();
+            return;
+        }
+
+        NEWHANDLE->resource->setOnDestroy([](CHyprlandToplevelWindowMappingHandleV1* h) { PROTO::toplevelMapping->destroyHandle(h); });
+        NEWHANDLE->resource->setDestroy([](CHyprlandToplevelWindowMappingHandleV1* h) { PROTO::toplevelMapping->destroyHandle(h); });
+
+        const auto WINDOW = PROTO::foreignToplevelWlr->windowFromHandleResource(toplevel);
+        if (!WINDOW)
+            NEWHANDLE->resource->sendFailed();
+        else
+            NEWHANDLE->resource->sendWindowAddress((uint64_t)WINDOW.get() >> 32 & 0xFFFFFFFF, (uint64_t)WINDOW.get() & 0xFFFFFFFF);
+    });
+}
+
+bool CToplevelMappingManager::good() const {
+    return resource->resource();
+}
+
+CToplevelMappingProtocol::CToplevelMappingProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {}
+
+void CToplevelMappingProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
+    const auto RESOURCE = m_vManagers.emplace_back(makeUnique<CToplevelMappingManager>(makeShared<CHyprlandToplevelMappingManagerV1>(client, ver, id))).get();
+
+    if UNLIKELY (!RESOURCE->good()) {
+        LOGM(ERR, "Couldn't create a toplevel mapping manager");
+        wl_client_post_no_memory(client);
+        m_vManagers.pop_back();
+        return;
+    }
+}
+
+void CToplevelMappingProtocol::onManagerResourceDestroy(CToplevelMappingManager* mgr) {
+    std::erase_if(m_vManagers, [&](const auto& other) { return other.get() == mgr; });
+}
+
+void CToplevelMappingProtocol::destroyHandle(CHyprlandToplevelWindowMappingHandleV1* handle) {
+    std::erase_if(m_vHandles, [&](const auto& other) { return other->resource.get() == handle; });
+}

src/protocols/ToplevelMapping.hpp

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <vector>
+#include "WaylandProtocol.hpp"
+#include "hyprland-toplevel-mapping-v1.hpp"
+
+class CToplevelWindowMappingHandle {
+  public:
+    CToplevelWindowMappingHandle(SP<CHyprlandToplevelWindowMappingHandleV1> resource_);
+
+  private:
+    SP<CHyprlandToplevelWindowMappingHandleV1> resource;
+
+    friend class CToplevelMappingManager;
+    friend class CToplevelMappingProtocol;
+};
+
+class CToplevelMappingManager {
+  public:
+    CToplevelMappingManager(SP<CHyprlandToplevelMappingManagerV1> resource_);
+
+    bool good() const;
+
+  private:
+    SP<CHyprlandToplevelMappingManagerV1> resource;
+};
+
+class CToplevelMappingProtocol : IWaylandProtocol {
+  public:
+    CToplevelMappingProtocol(const wl_interface* iface, const int& ver, const std::string& name);
+
+    virtual void bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id);
+
+  private:
+    void                                          onManagerResourceDestroy(CToplevelMappingManager* mgr);
+    void                                          destroyHandle(CHyprlandToplevelWindowMappingHandleV1* handle);
+
+    std::vector<UP<CToplevelMappingManager>>      m_vManagers;
+    std::vector<SP<CToplevelWindowMappingHandle>> m_vHandles;
+
+    friend class CToplevelMappingManager;
+};
+
+namespace PROTO {
+    inline UP<CToplevelMappingProtocol> toplevelMapping;
+};