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backends/fs/emscripten/http-fs.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HTTP_FILESYSTEM_H
+#define HTTP_FILESYSTEM_H
+
+#include "backends/fs/abstract-fs.h"
+#include "backends/fs/posix/posix-fs.h"
+
+/**
+ * Implementation of the ScummVM file system API based on POSIX.
+ *
+ * Parts of this class are documented in the base interface class, AbstractFSNode.
+ */
+class HTTPFilesystemNode : public AbstractFSNode {
+protected:
+	static Common::HashMap<Common::String, AbstractFSList> _httpFolders;
+	Common::String _displayName;
+	Common::String _path;
+	Common::String _url;
+	AbstractFSList *_children;
+	bool _isDirectory;
+	bool _isValid;
+	int _size;
+
+	/**
+	 * Full constructor, for internal use only (hence protected).
+	 */
+	HTTPFilesystemNode(const Common::String &path, const Common::String &displayName, const Common::String &baseUrl, bool isValid, bool isDirectory, int size);
+
+	virtual AbstractFSNode *makeNode(const Common::String &path) const {
+		return new HTTPFilesystemNode(path);
+	}
+
+public:
+	/**
+	 * Creates a HTTPFilesystemNode for a given path.
+	 *
+	 * @param path the path the new node should point to.
+	 */
+	HTTPFilesystemNode(const Common::String &path);
+	~HTTPFilesystemNode() {}
+	bool exists() const override;
+	Common::U32String getDisplayName() const override { return _displayName; }
+	Common::String getName() const override { return _displayName; }
+	Common::String getPath() const override { return _path; }
+	bool isDirectory() const override { return _isDirectory; }
+	bool isReadable() const override;
+	bool isWritable() const override;
+
+	AbstractFSNode *getChild(const Common::String &n) const override;
+	bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const override;
+	AbstractFSNode *getParent() const override;
+
+	Common::SeekableReadStream *createReadStream() override;
+	Common::SeekableWriteStream *createWriteStream(bool atomic) override;
+	bool createDirectory() override;
+};
+
+#endif