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#include "Subcompositor.hpp"
#include "Compositor.hpp"
#include <algorithm>
CWLSubsurfaceResource::CWLSubsurfaceResource(SP<CWlSubsurface> resource_, SP<CWLSurfaceResource> surface_, SP<CWLSurfaceResource> parent_) :
m_surface(surface_), m_parent(parent_), m_resource(resource_) {
if UNLIKELY (!good())
return;
m_resource->setOnDestroy([this](CWlSubsurface* r) { destroy(); });
m_resource->setDestroy([this](CWlSubsurface* r) { destroy(); });
m_resource->setSetPosition([this](CWlSubsurface* r, int32_t x, int32_t y) { m_position = {x, y}; });
m_resource->setSetDesync([this](CWlSubsurface* r) { m_sync = false; });
m_resource->setSetSync([this](CWlSubsurface* r) { m_sync = true; });
m_resource->setPlaceAbove([this](CWlSubsurface* r, wl_resource* surf) {
auto SURF = CWLSurfaceResource::fromResource(surf);
if (!m_parent)
return;
auto pushAboveIndex = [this](int idx) -> void {
for (auto const& c : m_parent->m_subsurfaces) {
if (c->m_zIndex >= idx)
c->m_zIndex++;
}
};
std::erase_if(m_parent->m_subsurfaces, [this](const auto& e) { return e == m_self || !e; });
auto it = std::ranges::find(m_parent->m_subsurfaces, SURF);
if (it == m_parent->m_subsurfaces.end()) {
LOGM(ERR, "Invalid surface reference in placeAbove, likely parent");
pushAboveIndex(1);
m_parent->m_subsurfaces.emplace_back(m_self);
m_zIndex = 1;
} else {
pushAboveIndex((*it)->m_zIndex);
m_zIndex = (*it)->m_zIndex;
m_parent->m_subsurfaces.emplace_back(m_self);
}
std::ranges::sort(m_parent->m_subsurfaces, [](const auto& a, const auto& b) { return a->m_zIndex < b->m_zIndex; });
});
m_resource->setPlaceBelow([this](CWlSubsurface* r, wl_resource* surf) {
auto SURF = CWLSurfaceResource::fromResource(surf);
if (!m_parent)
return;
auto pushBelowIndex = [this](int idx) -> void {
for (auto const& c : m_parent->m_subsurfaces) {
if (c->m_zIndex <= idx)
c->m_zIndex--;
}
};
std::erase_if(m_parent->m_subsurfaces, [this](const auto& e) { return e == m_self || !e; });
auto it = std::ranges::find(m_parent->m_subsurfaces, SURF);
if (it == m_parent->m_subsurfaces.end()) {
LOGM(ERR, "Invalid surface reference in placeBelow, likely parent");
pushBelowIndex(-1);
m_parent->m_subsurfaces.emplace_back(m_self);
m_zIndex = -1;
} else {
pushBelowIndex((*it)->m_zIndex);
m_zIndex = (*it)->m_zIndex;
m_parent->m_subsurfaces.emplace_back(m_self);
}
std::ranges::sort(m_parent->m_subsurfaces, [](const auto& a, const auto& b) { return a->m_zIndex < b->m_zIndex; });
});
m_listeners.commitSurface = m_surface->m_events.commit.registerListener([this](std::any d) {
if (m_surface->m_current.texture && !m_surface->m_mapped) {
m_surface->map();
m_surface->m_events.map.emit();
return;
}
if (!m_surface->m_current.texture && m_surface->m_mapped) {
m_surface->m_events.unmap.emit();
m_surface->unmap();
return;
}
});
}
CWLSubsurfaceResource::~CWLSubsurfaceResource() {
m_events.destroy.emit();
if (m_surface)
m_surface->resetRole();
}
void CWLSubsurfaceResource::destroy() {
if (m_surface && m_surface->m_mapped) {
m_surface->m_events.unmap.emit();
m_surface->unmap();
}
m_events.destroy.emit();
PROTO::subcompositor->destroyResource(this);
}
Vector2D CWLSubsurfaceResource::posRelativeToParent() {
Vector2D pos = m_position;
SP<CWLSurfaceResource> surf = m_parent.lock();
// some apps might create cycles, which I believe _technically_ are not a protocol error
// in some cases, notably firefox likes to do that, so we keep track of what
// surfaces we've visited and if we hit a surface we've visited we bail out.
std::vector<SP<CWLSurfaceResource>> surfacesVisited;
while (surf->m_role->role() == SURFACE_ROLE_SUBSURFACE && std::ranges::find_if(surfacesVisited, [surf](const auto& other) { return surf == other; }) == surfacesVisited.end()) {
surfacesVisited.emplace_back(surf);
auto subsurface = ((CSubsurfaceRole*)m_parent->m_role.get())->m_subsurface.lock();
pos += subsurface->m_position;
surf = subsurface->m_parent.lock();
}
return pos;
}
bool CWLSubsurfaceResource::good() {
return m_resource->resource();
}
SP<CWLSurfaceResource> CWLSubsurfaceResource::t1Parent() {
SP<CWLSurfaceResource> surf = m_parent.lock();
std::vector<SP<CWLSurfaceResource>> surfacesVisited;
while (surf->m_role->role() == SURFACE_ROLE_SUBSURFACE && std::ranges::find_if(surfacesVisited, [surf](const auto& other) { return surf == other; }) == surfacesVisited.end()) {
surfacesVisited.emplace_back(surf);
auto subsurface = ((CSubsurfaceRole*)m_parent->m_role.get())->m_subsurface.lock();
surf = subsurface->m_parent.lock();
}
return surf;
}
CWLSubcompositorResource::CWLSubcompositorResource(SP<CWlSubcompositor> resource_) : m_resource(resource_) {
if UNLIKELY (!good())
return;
m_resource->setOnDestroy([this](CWlSubcompositor* r) { PROTO::subcompositor->destroyResource(this); });
m_resource->setDestroy([this](CWlSubcompositor* r) { PROTO::subcompositor->destroyResource(this); });
m_resource->setGetSubsurface([](CWlSubcompositor* r, uint32_t id, wl_resource* surface, wl_resource* parent) {
auto SURF = CWLSurfaceResource::fromResource(surface);
auto PARENT = CWLSurfaceResource::fromResource(parent);
if UNLIKELY (!SURF || !PARENT || SURF == PARENT) {
r->error(WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE, "Invalid surface/parent");
return;
}
if UNLIKELY (SURF->m_role->role() != SURFACE_ROLE_UNASSIGNED) {
r->error(-1, "Surface already has a different role");
return;
}
SP<CWLSurfaceResource> t1Parent = nullptr;
if (PARENT->m_role->role() == SURFACE_ROLE_SUBSURFACE) {
auto subsurface = ((CSubsurfaceRole*)PARENT->m_role.get())->m_subsurface.lock();
t1Parent = subsurface->t1Parent();
} else
t1Parent = PARENT;
if UNLIKELY (t1Parent == SURF) {
r->error(WL_SUBCOMPOSITOR_ERROR_BAD_PARENT, "Bad parent, t1 parent == surf");
return;
}
const auto RESOURCE =
PROTO::subcompositor->m_surfaces.emplace_back(makeShared<CWLSubsurfaceResource>(makeShared<CWlSubsurface>(r->client(), r->version(), id), SURF, PARENT));
if UNLIKELY (!RESOURCE->good()) {
r->noMemory();
PROTO::subcompositor->m_surfaces.pop_back();
return;
}
RESOURCE->m_self = RESOURCE;
SURF->m_role = makeShared<CSubsurfaceRole>(RESOURCE);
PARENT->m_subsurfaces.emplace_back(RESOURCE);
LOGM(LOG, "New wl_subsurface with id {} at {:x}", id, (uintptr_t)RESOURCE.get());
PARENT->m_events.newSubsurface.emit(RESOURCE);
});
}
bool CWLSubcompositorResource::good() {
return m_resource->resource();
}
CWLSubcompositorProtocol::CWLSubcompositorProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
;
}
void CWLSubcompositorProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
const auto RESOURCE = m_managers.emplace_back(makeShared<CWLSubcompositorResource>(makeShared<CWlSubcompositor>(client, ver, id)));
if UNLIKELY (!RESOURCE->good()) {
wl_client_post_no_memory(client);
m_managers.pop_back();
return;
}
}
void CWLSubcompositorProtocol::destroyResource(CWLSubcompositorResource* resource) {
std::erase_if(m_managers, [&](const auto& other) { return other.get() == resource; });
}
void CWLSubcompositorProtocol::destroyResource(CWLSubsurfaceResource* resource) {
std::erase_if(m_surfaces, [&](const auto& other) { return other.get() == resource; });
}
CSubsurfaceRole::CSubsurfaceRole(SP<CWLSubsurfaceResource> sub) : m_subsurface(sub) {
;
}
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