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#include "CursorManager.hpp"
#include "Compositor.hpp"
#include "../config/ConfigValue.hpp"
extern "C" {
#include <wlr/interfaces/wlr_buffer.h>
#include <wlr/types/wlr_xcursor_manager.h>
}
static int cursorAnimTimer(void* data) {
g_pCursorManager->tickAnimatedCursor();
return 1;
}
static void hcLogger(enum eHyprcursorLogLevel level, char* message) {
if (level == HC_LOG_TRACE)
return;
Debug::log(NONE, "[hc] {}", message);
}
CCursorManager::CCursorManager() {
m_pHyprcursor = std::make_unique<Hyprcursor::CHyprcursorManager>(m_szTheme.empty() ? nullptr : m_szTheme.c_str(), hcLogger);
if (!m_pHyprcursor->valid())
Debug::log(ERR, "Hyprcursor failed loading theme \"{}\", falling back to X.", m_szTheme);
// find default size. First, HYPRCURSOR_SIZE, then XCURSOR_SIZE, then 24
auto SIZE = getenv("HYPRCURSOR_SIZE");
if (SIZE) {
try {
m_iSize = std::stoi(SIZE);
} catch (...) { ; }
}
SIZE = getenv("XCURSOR_SIZE");
if (SIZE && m_iSize == 0) {
try {
m_iSize = std::stoi(SIZE);
} catch (...) { ; }
}
if (m_iSize == 0)
m_iSize = 24;
m_pWLRXCursorMgr = wlr_xcursor_manager_create(getenv("XCURSOR_THEME"), m_iSize);
wlr_xcursor_manager_load(m_pWLRXCursorMgr, 1.0);
m_pAnimationTimer = wl_event_loop_add_timer(g_pCompositor->m_sWLEventLoop, ::cursorAnimTimer, nullptr);
updateTheme();
static auto P = g_pHookSystem->hookDynamic("monitorLayoutChanged", [this](void* self, SCallbackInfo& info, std::any param) { this->updateTheme(); });
}
void CCursorManager::dropBufferRef(CCursorManager::CCursorBuffer* ref) {
std::erase_if(m_vCursorBuffers, [ref](const auto& buf) { return buf.get() == ref; });
}
static void cursorBufferDestroy(struct wlr_buffer* wlr_buffer) {
CCursorManager::CCursorBuffer::SCursorWlrBuffer* buffer = wl_container_of(wlr_buffer, buffer, base);
g_pCursorManager->dropBufferRef(buffer->parent);
}
static bool cursorBufferBeginDataPtr(struct wlr_buffer* wlr_buffer, uint32_t flags, void** data, uint32_t* format, size_t* stride) {
CCursorManager::CCursorBuffer::SCursorWlrBuffer* buffer = wl_container_of(wlr_buffer, buffer, base);
if (flags & WLR_BUFFER_DATA_PTR_ACCESS_WRITE)
return false;
*data = cairo_image_surface_get_data(buffer->surface);
*stride = cairo_image_surface_get_stride(buffer->surface);
*format = DRM_FORMAT_ARGB8888;
return true;
}
static void cursorBufferEndDataPtr(struct wlr_buffer* wlr_buffer) {
;
}
//
static const wlr_buffer_impl bufferImpl = {
.destroy = cursorBufferDestroy,
.begin_data_ptr_access = cursorBufferBeginDataPtr,
.end_data_ptr_access = cursorBufferEndDataPtr,
};
CCursorManager::CCursorBuffer::CCursorBuffer(cairo_surface_t* surf, const Vector2D& size_, const Vector2D& hot_) : size(size_), hotspot(hot_) {
wlrBuffer.surface = surf;
wlr_buffer_init(&wlrBuffer.base, &bufferImpl, size.x, size.y);
wlrBuffer.parent = this;
}
CCursorManager::CCursorBuffer::~CCursorBuffer() {
; // will be freed in .destroy
}
wlr_buffer* CCursorManager::getCursorBuffer() {
return !m_vCursorBuffers.empty() ? &m_vCursorBuffers.back()->wlrBuffer.base : nullptr;
}
void CCursorManager::setCursorSurface(wlr_surface* surf, const Vector2D& hotspot) {
wlr_cursor_set_surface(g_pCompositor->m_sWLRCursor, surf, hotspot.x, hotspot.y);
m_bOurBufferConnected = false;
}
void CCursorManager::setCursorFromName(const std::string& name) {
static auto PUSEHYPRCURSOR = CConfigValue<Hyprlang::INT>("misc:enable_hyprcursor");
if (!m_pHyprcursor->valid() || !*PUSEHYPRCURSOR) {
wlr_cursor_set_xcursor(g_pCompositor->m_sWLRCursor, m_pWLRXCursorMgr, name.c_str());
return;
}
m_sCurrentCursorShapeData = m_pHyprcursor->getShape(name.c_str(), m_sCurrentStyleInfo);
if (m_sCurrentCursorShapeData.images.size() < 1) {
// fallback to a default if available
constexpr const std::array<const char*, 2> fallbackShapes = {"default", "left_ptr"};
for (auto& s : fallbackShapes) {
m_sCurrentCursorShapeData = m_pHyprcursor->getShape(s, m_sCurrentStyleInfo);
if (m_sCurrentCursorShapeData.images.size() > 0)
break;
}
if (m_sCurrentCursorShapeData.images.size() < 1) {
Debug::log(ERR, "BUG THIS: No fallback found for a cursor in setCursorFromName");
wlr_cursor_set_xcursor(g_pCompositor->m_sWLRCursor, m_pWLRXCursorMgr, name.c_str());
return;
}
}
m_vCursorBuffers.emplace_back(std::make_unique<CCursorBuffer>(m_sCurrentCursorShapeData.images[0].surface,
Vector2D{m_sCurrentCursorShapeData.images[0].size, m_sCurrentCursorShapeData.images[0].size},
Vector2D{m_sCurrentCursorShapeData.images[0].hotspotX, m_sCurrentCursorShapeData.images[0].hotspotY}));
if (g_pCompositor->m_sWLRCursor) {
wlr_cursor_set_buffer(g_pCompositor->m_sWLRCursor, getCursorBuffer(), m_sCurrentCursorShapeData.images[0].hotspotX / m_fCursorScale,
m_sCurrentCursorShapeData.images[0].hotspotY / m_fCursorScale, m_fCursorScale);
if (m_vCursorBuffers.size() > 1)
wlr_buffer_drop(&m_vCursorBuffers.front()->wlrBuffer.base);
}
m_bOurBufferConnected = true;
if (m_sCurrentCursorShapeData.images.size() > 1) {
// animated
wl_event_source_timer_update(m_pAnimationTimer, m_sCurrentCursorShapeData.images[0].delay);
m_iCurrentAnimationFrame = 0;
} else {
// disarm
wl_event_source_timer_update(m_pAnimationTimer, 0);
}
}
void CCursorManager::tickAnimatedCursor() {
if (m_sCurrentCursorShapeData.images.size() < 2 || !m_bOurBufferConnected)
return;
m_iCurrentAnimationFrame++;
if ((size_t)m_iCurrentAnimationFrame >= m_sCurrentCursorShapeData.images.size())
m_iCurrentAnimationFrame = 0;
m_vCursorBuffers.emplace_back(std::make_unique<CCursorBuffer>(
m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].surface,
Vector2D{m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].size, m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].size},
Vector2D{m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].hotspotX, m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].hotspotY}));
if (g_pCompositor->m_sWLRCursor)
wlr_cursor_set_buffer(g_pCompositor->m_sWLRCursor, getCursorBuffer(), m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].hotspotX / m_fCursorScale,
m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].hotspotY / m_fCursorScale, m_fCursorScale);
wl_event_source_timer_update(m_pAnimationTimer, m_sCurrentCursorShapeData.images[m_iCurrentAnimationFrame].delay);
}
SCursorImageData CCursorManager::dataFor(const std::string& name) {
if (!m_pHyprcursor->valid())
return {};
const auto IMAGES = m_pHyprcursor->getShape(name.c_str(), m_sCurrentStyleInfo);
if (IMAGES.images.empty())
return {};
return IMAGES.images[0];
}
void CCursorManager::setXWaylandCursor(wlr_xwayland* xwayland) {
const auto CURSOR = dataFor("left_ptr");
if (CURSOR.surface) {
wlr_xwayland_set_cursor(xwayland, cairo_image_surface_get_data(CURSOR.surface), cairo_image_surface_get_stride(CURSOR.surface), CURSOR.size, CURSOR.size, CURSOR.hotspotX,
CURSOR.hotspotY);
} else if (const auto XCURSOR = wlr_xcursor_manager_get_xcursor(m_pWLRXCursorMgr, "left_ptr", 1); XCURSOR) {
wlr_xwayland_set_cursor(xwayland, XCURSOR->images[0]->buffer, XCURSOR->images[0]->width * 4, XCURSOR->images[0]->width, XCURSOR->images[0]->height,
XCURSOR->images[0]->hotspot_x, XCURSOR->images[0]->hotspot_y);
} else
Debug::log(ERR, "CursorManager: no valid cursor for xwayland");
}
void CCursorManager::updateTheme() {
float highestScale = 1.0;
for (auto& m : g_pCompositor->m_vMonitors) {
if (m->scale > highestScale)
highestScale = m->scale;
}
if (highestScale * m_iSize == m_sCurrentStyleInfo.size)
return;
if (m_sCurrentStyleInfo.size && m_pHyprcursor->valid())
m_pHyprcursor->cursorSurfaceStyleDone(m_sCurrentStyleInfo);
m_sCurrentStyleInfo.size = m_iSize * highestScale;
m_fCursorScale = highestScale;
if (m_pHyprcursor->valid())
m_pHyprcursor->loadThemeStyle(m_sCurrentStyleInfo);
setCursorFromName("left_ptr");
for (auto& m : g_pCompositor->m_vMonitors) {
m->forceFullFrames = 5;
g_pCompositor->scheduleFrameForMonitor(m.get());
}
}
void CCursorManager::changeTheme(const std::string& name, const int size) {
m_pHyprcursor = std::make_unique<Hyprcursor::CHyprcursorManager>(name.empty() ? "" : name.c_str(), hcLogger);
m_szTheme = name;
m_iSize = size;
if (!m_pHyprcursor->valid())
Debug::log(ERR, "Hyprcursor failed loading theme \"{}\", falling back to X.", m_szTheme);
updateTheme();
}
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