internal: Protocol C++ Wraps + XDGOutput impl (#2733)

move to our own xdgoutput impl instead of wlr's

1 files changed, 127 insertions, 0 deletions

diff --git a/src/protocols/XDGOutput.cpp b/src/protocols/XDGOutput.cpp
new file mode 100644
index 00000000..ab0820e0
--- /dev/null
+++ b/src/protocols/XDGOutput.cpp
@@ -0,0 +1,127 @@
+#include "XDGOutput.hpp"
+#include "../Compositor.hpp"
+
+#include "xdg-output-unstable-v1-protocol.h"
+
+#define OUTPUT_MANAGER_VERSION                   3
+#define OUTPUT_DONE_DEPRECATED_SINCE_VERSION     3
+#define OUTPUT_DESCRIPTION_MUTABLE_SINCE_VERSION 3
+
+static void destroyManagerResource(wl_client* client, wl_resource* resource) {
+    ((CXDGOutputProtocol*)wl_resource_get_user_data(resource))->onManagerResourceDestroy(resource);
+    // will be destroyed by the destruction of the unique_ptr
+}
+
+static void destroyOutputResource(wl_client* client, wl_resource* resource) {
+    ((CXDGOutputProtocol*)wl_resource_get_user_data(resource))->onOutputResourceDestroy(resource);
+    wl_resource_destroy(resource);
+}
+
+static void destroyOutputResourceOnly(wl_resource* resource) {
+    ((CXDGOutputProtocol*)wl_resource_get_user_data(resource))->onOutputResourceDestroy(resource);
+}
+
+static void getXDGOutput(wl_client* client, wl_resource* resource, uint32_t id, wl_resource* outputResource) {
+    ((CXDGOutputProtocol*)wl_resource_get_user_data(resource))->onManagerGetXDGOutput(client, resource, id, outputResource);
+}
+
+//
+
+static const struct zxdg_output_manager_v1_interface MANAGER_IMPL = {
+    .destroy        = destroyManagerResource,
+    .get_xdg_output = getXDGOutput,
+};
+
+static const struct zxdg_output_v1_interface OUTPUT_IMPL = {
+    .destroy = destroyOutputResource,
+};
+
+void CXDGOutputProtocol::onManagerResourceDestroy(wl_resource* res) {
+    std::erase_if(m_vManagerResources, [&](const auto& other) { return other->resource() == res; });
+}
+
+void CXDGOutputProtocol::onOutputResourceDestroy(wl_resource* res) {
+    std::erase_if(m_vXDGOutputs, [&](const auto& other) { return !other->resource || other->resource->resource() == res; });
+}
+
+void CXDGOutputProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
+    const auto RESOURCE = m_vManagerResources.emplace_back(std::make_unique<CWaylandResource>(client, &zxdg_output_manager_v1_interface, ver, id, true)).get();
+
+    if (!RESOURCE->good()) {
+        Debug::log(LOG, "Couldn't bind XDGOutputMgr");
+        return;
+    }
+
+    RESOURCE->setImplementation(&MANAGER_IMPL, this, nullptr);
+}
+
+CXDGOutputProtocol::CXDGOutputProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
+    g_pHookSystem->hookDynamic("monitorLayoutChanged", [&](void* self, std::any param) { this->updateAllOutputs(); });
+    g_pHookSystem->hookDynamic("configReloaded", [&](void* self, std::any param) { this->updateAllOutputs(); });
+    g_pHookSystem->hookDynamic("monitorRemoved", [&](void* self, std::any param) {
+        const auto PMONITOR = std::any_cast<CMonitor*>(param);
+        std::erase_if(m_vXDGOutputs, [&](const auto& other) { return other->monitor == PMONITOR; });
+    });
+}
+
+void CXDGOutputProtocol::onManagerGetXDGOutput(wl_client* client, wl_resource* resource, uint32_t id, wl_resource* outputResource) {
+    const auto OUTPUT = wlr_output_from_resource(outputResource);
+
+    if (!OUTPUT)
+        return;
+
+    const auto PMONITOR = g_pCompositor->getMonitorFromOutput(OUTPUT);
+
+    if (!PMONITOR)
+        return;
+
+    SXDGOutput* pXDGOutput = m_vXDGOutputs.emplace_back(std::make_unique<SXDGOutput>(PMONITOR)).get();
+#ifndef NO_XWAYLAND
+    if (g_pXWaylandManager->m_sWLRXWayland->server->client == client)
+        pXDGOutput->isXWayland = true;
+#endif
+    pXDGOutput->client = client;
+
+    pXDGOutput->resource = std::make_unique<CWaylandResource>(client, &zxdg_output_v1_interface, wl_resource_get_version(resource), id);
+
+    if (!pXDGOutput->resource->good()) {
+        pXDGOutput->resource.release();
+        return;
+    }
+
+    pXDGOutput->resource->setImplementation(&OUTPUT_IMPL, this, destroyOutputResourceOnly);
+    const auto XDGVER = pXDGOutput->resource->version();
+
+    if (XDGVER >= ZXDG_OUTPUT_V1_NAME_SINCE_VERSION)
+        zxdg_output_v1_send_name(pXDGOutput->resource->resource(), PMONITOR->szName.c_str());
+    if (XDGVER >= ZXDG_OUTPUT_V1_DESCRIPTION_SINCE_VERSION && PMONITOR->output->description)
+        zxdg_output_v1_send_description(pXDGOutput->resource->resource(), PMONITOR->output->description);
+
+    updateOutputDetails(pXDGOutput);
+
+    const auto OUTPUTVER = wl_resource_get_version(outputResource);
+    if (OUTPUTVER >= WL_OUTPUT_DONE_SINCE_VERSION && XDGVER >= OUTPUT_DONE_DEPRECATED_SINCE_VERSION)
+        wl_output_send_done(outputResource);
+}
+
+void CXDGOutputProtocol::updateOutputDetails(SXDGOutput* pOutput) {
+    static auto* const PXWLFORCESCALEZERO = &g_pConfigManager->getConfigValuePtr("xwayland:force_zero_scaling")->intValue;
+
+    zxdg_output_v1_send_logical_position(pOutput->resource->resource(), pOutput->monitor->vecPosition.x, pOutput->monitor->vecPosition.y);
+
+    if (*PXWLFORCESCALEZERO && pOutput->isXWayland)
+        zxdg_output_v1_send_logical_size(pOutput->resource->resource(), pOutput->monitor->vecPixelSize.x, pOutput->monitor->vecPixelSize.y);
+    else
+        zxdg_output_v1_send_logical_size(pOutput->resource->resource(), pOutput->monitor->vecSize.x, pOutput->monitor->vecSize.y);
+
+    if (wl_resource_get_version(pOutput->resource->resource()) < OUTPUT_DONE_DEPRECATED_SINCE_VERSION)
+        zxdg_output_v1_send_done(pOutput->resource->resource());
+}
+
+void CXDGOutputProtocol::updateAllOutputs() {
+    for (auto& o : m_vXDGOutputs) {
+        updateOutputDetails(o.get());
+
+        wlr_output_schedule_done(o->monitor->output);
+    }
+}
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