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#include "FractionalScale.hpp"
#include "../Compositor.hpp"
#define FRACTIONAL_SCALE_VERSION 1
static void bindManagerInt(wl_client* client, void* data, uint32_t version, uint32_t id) {
g_pProtocolManager->m_pFractionalScaleProtocolManager->bindManager(client, data, version, id);
}
static void handleDisplayDestroy(struct wl_listener* listener, void* data) {
g_pProtocolManager->m_pFractionalScaleProtocolManager->displayDestroy();
}
void CFractionalScaleProtocolManager::displayDestroy() {
wl_global_destroy(m_pGlobal);
}
static void handleDestroy(wl_client* client, wl_resource* resource) {
wl_resource_destroy(resource);
}
void handleGetFractionalScale(wl_client* client, wl_resource* resource, uint32_t id, wl_resource* surface) {
g_pProtocolManager->m_pFractionalScaleProtocolManager->getFractionalScale(client, resource, id, surface);
}
CFractionalScaleProtocolManager::CFractionalScaleProtocolManager() {
m_pGlobal = wl_global_create(g_pCompositor->m_sWLDisplay, &wp_fractional_scale_manager_v1_interface, FRACTIONAL_SCALE_VERSION, this, bindManagerInt);
if (!m_pGlobal) {
Debug::log(ERR, "FractionalScaleManager could not start! Fractional scaling will not work!");
return;
}
m_liDisplayDestroy.notify = handleDisplayDestroy;
wl_display_add_destroy_listener(g_pCompositor->m_sWLDisplay, &m_liDisplayDestroy);
Debug::log(LOG, "FractionalScaleManager started successfully!");
}
static const struct wp_fractional_scale_manager_v1_interface fractionalScaleManagerImpl = {
.destroy = handleDestroy,
.get_fractional_scale = handleGetFractionalScale,
};
void CFractionalScaleProtocolManager::bindManager(wl_client* client, void* data, uint32_t version, uint32_t id) {
const auto RESOURCE = wl_resource_create(client, &wp_fractional_scale_manager_v1_interface, version, id);
wl_resource_set_implementation(RESOURCE, &fractionalScaleManagerImpl, this, nullptr);
Debug::log(LOG, "FractionalScaleManager bound successfully!");
}
static void handleDestroyScaleAddon(wl_client* client, wl_resource* resource);
//
static const struct wp_fractional_scale_v1_interface fractionalScaleAddonImpl { .destroy = handleDestroyScaleAddon };
//
SFractionalScaleAddon* addonFromResource(wl_resource* resource) {
ASSERT(wl_resource_instance_of(resource, &wp_fractional_scale_v1_interface, &fractionalScaleAddonImpl));
return (SFractionalScaleAddon*)wl_resource_get_user_data(resource);
}
static void handleDestroyScaleAddon(wl_client* client, wl_resource* resource) {
wl_resource_destroy(resource);
}
static void handleAddonDestroy(wl_resource* resource) {
const auto PADDON = addonFromResource(resource);
if (PADDON->pResource) {
wl_resource_set_user_data(PADDON->pResource, nullptr);
}
g_pProtocolManager->m_pFractionalScaleProtocolManager->removeAddon(PADDON->pSurface);
}
void CFractionalScaleProtocolManager::getFractionalScale(wl_client* client, wl_resource* resource, uint32_t id, wl_resource* surface) {
const auto PSURFACE = wlr_surface_from_resource(surface);
const auto PADDON = getAddonForSurface(PSURFACE);
if (PADDON->pResource) {
wl_resource_post_error(resource, WP_FRACTIONAL_SCALE_MANAGER_V1_ERROR_FRACTIONAL_SCALE_EXISTS, "Fractional scale exists.");
return;
}
PADDON->pResource = wl_resource_create(client, &wp_fractional_scale_v1_interface, wl_resource_get_version(resource), id);
wl_resource_set_implementation(PADDON->pResource, &fractionalScaleAddonImpl, PADDON, handleAddonDestroy);
wp_fractional_scale_v1_send_preferred_scale(PADDON->pResource, (uint32_t)std::round(PADDON->preferredScale * 120.0));
}
SFractionalScaleAddon* CFractionalScaleProtocolManager::getAddonForSurface(wlr_surface* surface) {
const auto IT = std::find_if(m_vFractionalScaleAddons.begin(), m_vFractionalScaleAddons.end(), [&](const auto& other) { return other->pSurface == surface; });
if (IT != m_vFractionalScaleAddons.end())
return IT->get();
m_vFractionalScaleAddons.emplace_back(std::make_unique<SFractionalScaleAddon>());
m_vFractionalScaleAddons.back()->pSurface = surface;
return m_vFractionalScaleAddons.back().get();
}
void CFractionalScaleProtocolManager::setPreferredScaleForSurface(wlr_surface* surface, double scale) {
const auto PADDON = getAddonForSurface(surface);
PADDON->preferredScale = scale;
if (PADDON->pResource)
wp_fractional_scale_v1_send_preferred_scale(PADDON->pResource, (uint32_t)std::round(scale * 120.0));
}
void CFractionalScaleProtocolManager::removeAddon(wlr_surface* surface) {
std::erase_if(m_vFractionalScaleAddons, [&](const auto& other) { return other->pSurface == surface; });
}
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