Hyprland/src/managers/XWaylandManager.cpp

#include "XWaylandManager.hpp"
#include "../Compositor.hpp"
#include "../events/Events.hpp"

CHyprXWaylandManager::CHyprXWaylandManager() {
#ifndef NO_XWAYLAND
    m_sWLRXWayland = wlr_xwayland_create(g_pCompositor->m_sWLDisplay, g_pCompositor->m_sWLRCompositor, 1);

    if (!m_sWLRXWayland) {
        Debug::log(ERR, "Couldn't start up the XWaylandManager because wlr_xwayland_create returned a nullptr!");
        return;
    }

    addWLSignal(&m_sWLRXWayland->events.ready, &Events::listen_readyXWayland, m_sWLRXWayland, "XWayland Manager");
    addWLSignal(&m_sWLRXWayland->events.new_surface, &Events::listen_surfaceXWayland, m_sWLRXWayland, "XWayland Manager");

    setenv("DISPLAY", m_sWLRXWayland->display_name, 1);

    Debug::log(LOG, "CHyprXWaylandManager started on display %s", m_sWLRXWayland->display_name);
#else
    unsetenv("DISPLAY"); // unset DISPLAY so that X11 apps do not try to start on a different/invalid DISPLAY
#endif
}

CHyprXWaylandManager::~CHyprXWaylandManager() {}

wlr_surface* CHyprXWaylandManager::getWindowSurface(CWindow* pWindow) {
    if (pWindow->m_bIsX11)
        return pWindow->m_uSurface.xwayland->surface;

    return pWindow->m_uSurface.xdg->surface;
}

void CHyprXWaylandManager::activateSurface(wlr_surface* pSurface, bool activate) {
    if (!pSurface)
        return;

    if (wlr_surface_is_xdg_surface(pSurface)) {
        const auto PSURF = wlr_xdg_surface_from_wlr_surface(pSurface);
        if (PSURF && PSURF->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL) {
            wlr_xdg_toplevel_set_activated(PSURF->toplevel, activate);
        }
    } else if (wlr_surface_is_xwayland_surface(pSurface)) {
        wlr_xwayland_surface_activate(wlr_xwayland_surface_from_wlr_surface(pSurface), activate);

        if (activate)
            wlr_xwayland_surface_restack(wlr_xwayland_surface_from_wlr_surface(pSurface), nullptr, XCB_STACK_MODE_ABOVE);
    }
}

void CHyprXWaylandManager::activateWindow(CWindow* pWindow, bool activate) {
    if (pWindow->m_bIsX11) {

        if (activate) {
            wlr_xwayland_surface_set_minimized(pWindow->m_uSurface.xwayland, false);
            wlr_xwayland_surface_restack(pWindow->m_uSurface.xwayland, nullptr, XCB_STACK_MODE_ABOVE);
        }

        wlr_xwayland_surface_activate(pWindow->m_uSurface.xwayland, activate);
    } else
        wlr_xdg_toplevel_set_activated(pWindow->m_uSurface.xdg->toplevel, activate);

    if (activate) {
        g_pCompositor->m_pLastFocus  = getWindowSurface(pWindow);
        g_pCompositor->m_pLastWindow = pWindow;
    }

    if (!pWindow->m_bPinned)
        g_pCompositor->getWorkspaceByID(pWindow->m_iWorkspaceID)->m_pLastFocusedWindow = pWindow;
}

void CHyprXWaylandManager::getGeometryForWindow(CWindow* pWindow, wlr_box* pbox) {
    if (pWindow->m_bIsX11) {
        const auto SIZEHINTS = pWindow->m_uSurface.xwayland->size_hints;

        if (SIZEHINTS && pWindow->m_iX11Type != 2) {
            pbox->x      = SIZEHINTS->x;
            pbox->y      = SIZEHINTS->y;
            pbox->width  = SIZEHINTS->width;
            pbox->height = SIZEHINTS->height;
        } else {
            pbox->x      = pWindow->m_uSurface.xwayland->x;
            pbox->y      = pWindow->m_uSurface.xwayland->y;
            pbox->width  = pWindow->m_uSurface.xwayland->width;
            pbox->height = pWindow->m_uSurface.xwayland->height;
        }
    } else {
        wlr_xdg_surface_get_geometry(pWindow->m_uSurface.xdg, pbox);
    }
}

std::string CHyprXWaylandManager::getTitle(CWindow* pWindow) {
    try {
        if (pWindow->m_bIsX11) {
            if (pWindow->m_uSurface.xwayland && pWindow->m_uSurface.xwayland->title) {
                return std::string(pWindow->m_uSurface.xwayland->title);
            }
        } else if (pWindow->m_uSurface.xdg) {
            if (pWindow->m_uSurface.xdg->toplevel && pWindow->m_uSurface.xdg->toplevel->title) {
                return std::string(pWindow->m_uSurface.xdg->toplevel->title);
            }
        } else {
            return "";
        }
    } catch (...) { Debug::log(ERR, "Error in getTitle (probably null title)"); }

    return "";
}

std::string CHyprXWaylandManager::getAppIDClass(CWindow* pWindow) {
    try {
        if (pWindow->m_bIsX11) {
            if (pWindow->m_uSurface.xwayland) {
                if (!pWindow->m_bMappedX11 || !pWindow->m_bIsMapped)
                    return "unmanaged X11";

                return std::string(pWindow->m_uSurface.xwayland->_class);
            }
        } else if (pWindow->m_uSurface.xdg) {
            if (pWindow->m_uSurface.xdg->toplevel) {
                return std::string(pWindow->m_uSurface.xdg->toplevel->app_id);
            }
        } else {
            return "";
        }
    } catch (std::logic_error& e) { Debug::log(ERR, "Error in getAppIDClass: %s", e.what()); }

    return "";
}

void CHyprXWaylandManager::sendCloseWindow(CWindow* pWindow) {
    if (pWindow->m_bIsX11) {
        wlr_xwayland_surface_close(pWindow->m_uSurface.xwayland);
    } else {
        wlr_xdg_toplevel_send_close(pWindow->m_uSurface.xdg->toplevel);
    }
}

void CHyprXWaylandManager::setWindowSize(CWindow* pWindow, const Vector2D& size, bool force) {

    if (!force &&
        ((pWindow->m_vReportedSize == size && pWindow->m_vRealPosition.vec() == pWindow->m_vReportedPosition) || (pWindow->m_vReportedSize == size && !pWindow->m_bIsX11)))
        return;

    pWindow->m_vReportedPosition = pWindow->m_vRealPosition.vec();
    pWindow->m_vReportedSize     = size;

    if (pWindow->m_bIsX11)
        wlr_xwayland_surface_configure(pWindow->m_uSurface.xwayland, pWindow->m_vRealPosition.vec().x, pWindow->m_vRealPosition.vec().y, size.x, size.y);
    else
        wlr_xdg_toplevel_set_size(pWindow->m_uSurface.xdg->toplevel, size.x, size.y);
}

void CHyprXWaylandManager::setWindowStyleTiled(CWindow* pWindow, uint32_t edgez) {
    if (!pWindow->m_bIsX11)
        wlr_xdg_toplevel_set_tiled(pWindow->m_uSurface.xdg->toplevel, edgez);
}

wlr_surface* CHyprXWaylandManager::surfaceAt(CWindow* pWindow, const Vector2D& client, Vector2D& surface) {
    if (pWindow->m_bIsX11)
        return wlr_surface_surface_at(pWindow->m_uSurface.xwayland->surface, client.x, client.y, &surface.x, &surface.y);

    return wlr_xdg_surface_surface_at(pWindow->m_uSurface.xdg, client.x, client.y, &surface.x, &surface.y);
}

bool CHyprXWaylandManager::shouldBeFloated(CWindow* pWindow) {
    if (pWindow->m_bIsX11) {
        for (size_t i = 0; i < pWindow->m_uSurface.xwayland->window_type_len; i++)
            if (pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_DIALOG"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_SPLASH"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_TOOLBAR"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_UTILITY"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_TOOLTIP"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_POPUP_MENU"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_DOCK"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_DROPDOWN_MENU"] ||
                pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_MENU"]) {

                if (pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_DROPDOWN_MENU"] ||
                    pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_MENU"])
                    pWindow->m_bX11ShouldntFocus = true;

                pWindow->m_bNoInitialFocus = true;
                return true;
            }

        if (pWindow->m_uSurface.xwayland->role) {
            try {
                std::string winrole = std::string(pWindow->m_uSurface.xwayland->role);
                if (winrole.contains("pop-up") || winrole.contains("task_dialog")) {
                    return true;
                }
            } catch (std::exception& e) { Debug::log(ERR, "Error in shouldBeFloated, winrole threw %s", e.what()); }
        }

        if (pWindow->m_uSurface.xwayland->modal) {
            pWindow->m_bIsModal = true;
            return true;
        }

        if (pWindow->m_iX11Type == 2) {
            return true; // override_redirect
        }

        const auto SIZEHINTS = pWindow->m_uSurface.xwayland->size_hints;
        if (SIZEHINTS && (pWindow->m_uSurface.xwayland->parent || ((SIZEHINTS->min_width == SIZEHINTS->max_width) && (SIZEHINTS->min_height == SIZEHINTS->max_height))))
            return true;
    } else {
        const auto PSTATE = &pWindow->m_uSurface.xdg->toplevel->current;

        if ((PSTATE->min_width != 0 && PSTATE->min_height != 0 && (PSTATE->min_width == PSTATE->max_width || PSTATE->min_height == PSTATE->max_height)) ||
            pWindow->m_uSurface.xdg->toplevel->parent)
            return true;
    }

    return false;
}

void CHyprXWaylandManager::moveXWaylandWindow(CWindow* pWindow, const Vector2D& pos) {
    if (!g_pCompositor->windowValidMapped(pWindow))
        return;

    if (pWindow->m_bIsX11) {
        wlr_xwayland_surface_configure(pWindow->m_uSurface.xwayland, pos.x, pos.y, pWindow->m_vRealSize.vec().x, pWindow->m_vRealSize.vec().y);
    }
}

void CHyprXWaylandManager::checkBorders(CWindow* pWindow) {
    if (!pWindow->m_bIsX11)
        return;

    for (size_t i = 0; i < pWindow->m_uSurface.xwayland->window_type_len; i++) {
        if (pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_POPUP_MENU"] ||
            pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_NOTIFICATION"] ||
            pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_DROPDOWN_MENU"] ||
            pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_COMBO"] ||
            pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_MENU"] ||
            pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_SPLASH"] ||
            pWindow->m_uSurface.xwayland->window_type[i] == HYPRATOMS["_NET_WM_WINDOW_TYPE_TOOLTIP"]) {

            pWindow->m_bX11DoesntWantBorders = true;
            return;
        }
    }

    if (pWindow->m_iX11Type == 2) {
        pWindow->m_bX11DoesntWantBorders = true;
    }
}

void CHyprXWaylandManager::setWindowFullscreen(CWindow* pWindow, bool fullscreen) {
    if (pWindow->m_bIsX11) {
        wlr_xwayland_surface_set_fullscreen(pWindow->m_uSurface.xwayland, fullscreen);
    } else {
        wlr_xdg_toplevel_set_fullscreen(pWindow->m_uSurface.xdg->toplevel, fullscreen);
    }

    if (pWindow->m_phForeignToplevel)
        wlr_foreign_toplevel_handle_v1_set_fullscreen(pWindow->m_phForeignToplevel, fullscreen);
}

Vector2D CHyprXWaylandManager::getMaxSizeForWindow(CWindow* pWindow) {
    if (!g_pCompositor->windowValidMapped(pWindow))
        return Vector2D(99999, 99999);

    if ((pWindow->m_bIsX11 && !pWindow->m_uSurface.xwayland->size_hints) || (!pWindow->m_bIsX11 && !pWindow->m_uSurface.xdg->toplevel) ||
        pWindow->m_sAdditionalConfigData.noMaxSize)
        return Vector2D(99999, 99999);

    auto MAXSIZE = pWindow->m_bIsX11 ? Vector2D(pWindow->m_uSurface.xwayland->size_hints->max_width, pWindow->m_uSurface.xwayland->size_hints->max_height) :
                                       Vector2D(pWindow->m_uSurface.xdg->toplevel->current.max_width, pWindow->m_uSurface.xdg->toplevel->current.max_height);

    if (MAXSIZE.x < 5)
        MAXSIZE.x = 99999;
    if (MAXSIZE.y < 5)
        MAXSIZE.y = 99999;

    return MAXSIZE;
}