Differential D11791 Diff 40163 source/blender/editors/asset/intern/asset_temp_id_consumer.cc

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source/blender/editors/asset/intern/asset_temp_id_consumer.cc

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				/*
				* This program is free software; you can redistribute it and/or
				* modify it under the terms of the GNU General Public License
				* as published by the Free Software Foundation; either version 2
				* of the License, or (at your option) any later version.
				*
				* This program is distributed in the hope that it will be useful,
				* but WITHOUT ANY WARRANTY; without even the implied warranty of
				* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
				* GNU General Public License for more details.
				*
				* You should have received a copy of the GNU General Public License
				* along with this program; if not, write to the Free Software Foundation,
				* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				*/

				/** \file
				* \ingroup edasset
				*
				* API for temporary loading of asset IDs.
				* Uses the `BLO_library_temp_xxx()` API internally.
				*/

				#include <new>

				#include "DNA_asset_types.h"
				#include "DNA_space_types.h"

				#include "BKE_report.h"

				#include "BLI_utility_mixins.hh"

				#include "BLO_readfile.h"

				#include "MEM_guardedalloc.h"

				#include "ED_asset_handle.h"
				#include "ED_asset_temp_id_consumer.h"

				using namespace blender;

				class AssetTemporaryIDConsumer : NonCopyable, NonMovable {
				const AssetHandle &handle_;
				TempLibraryContext *temp_lib_context_ = nullptr;

				public:
				AssetTemporaryIDConsumer(const AssetHandle &handle) : handle_(handle)
				{
				}
				~AssetTemporaryIDConsumer()
				{
				if (temp_lib_context_) {
				BLO_library_temp_free(temp_lib_context_);
				}
				}

				ID *get_local_id()
				{
				return ED_asset_handle_get_local_id(&handle_);
				}

				ID import_id(const bContext C,
				const AssetLibraryReference &asset_library,
				ID_Type id_type,
				Main &bmain,
				ReportList &reports)
				{
				const char *asset_name = ED_asset_handle_get_name(&handle_);
				char blend_file_path[FILE_MAX_LIBEXTRA];
				ED_asset_handle_get_full_library_path(C, &asset_library, &handle_, blend_file_path);

				temp_lib_context_ = BLO_library_temp_load_id(
				&bmain, blend_file_path, id_type, asset_name, &reports);

				if (temp_lib_context_ == nullptr \|\| temp_lib_context_->temp_id == nullptr) {
				BKE_reportf(&reports, RPT_ERROR, "Unable to load %s from %s", asset_name, blend_file_path);
				return nullptr;
				}

				BLI_assert(GS(temp_lib_context_->temp_id->name) == id_type);
				return temp_lib_context_->temp_id;
				}
				};

				AssetTempIDConsumer ED_asset_temp_id_consumer_create(const AssetHandle handle)
				{
				if (!handle) {
				return nullptr;
				}
				BLI_assert(handle->file_data->asset_data != nullptr);
				return reinterpret_cast<AssetTempIDConsumer *>(
				OBJECT_GUARDED_NEW(AssetTemporaryIDConsumer, *handle));
				}

				void ED_asset_temp_id_consumer_free(AssetTempIDConsumer **consumer)
				{
				OBJECT_GUARDED_SAFE_DELETE(*consumer, AssetTemporaryIDConsumer);
				}

				ID ED_asset_temp_id_consumer_ensure_local_id(AssetTempIDConsumer consumer_,
				const bContext *C,
				const AssetLibraryReference *asset_library,
				ID_Type id_type,
				Main *bmain,
				ReportList *reports)
				{
				if (!(consumer_ && asset_library && bmain && reports)) {
				return nullptr;
				}
				AssetTemporaryIDConsumer consumer = reinterpret_cast<AssetTemporaryIDConsumer >(consumer_);

				if (ID *local_id = consumer->get_local_id()) {
				return local_id;
				}
				return consumer->import_id(C, asset_library, id_type, bmain, *reports);
				}