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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-plugin-fw
* Created on: 10 апр. 2021 г.
*
* lsp-plugin-fw is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-plugin-fw 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-plugin-fw. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_UI_XML_HANDLER_H_
#define PRIVATE_UI_XML_HANDLER_H_
#include <lsp-plug.in/fmt/xml/IXMLHandler.h>
#include <lsp-plug.in/lltl/darray.h>
#include <lsp-plug.in/resource/ILoader.h>
#include <private/ui/xml/Node.h>
namespace lsp
{
namespace ui
{
namespace xml
{
/**
* The XML event handler that handles all XML events in the document
*/
class Handler: public lsp::xml::IXMLHandler
{
private:
Handler & operator = (const Handler &);
Handler(const Handler &);
protected:
typedef struct node_t
{
Node *node; // The current node
ssize_t refs; // Number of references
} node_t;
protected:
resource::ILoader *pLoader;
lltl::darray<node_t> vStack;
node_t sRoot;
protected:
void release_node(node_t *node);
LSPString *fetch_element_string(const void **data);
public:
explicit Handler(resource::ILoader *loader);
explicit Handler(resource::ILoader *loader, Node *root);
virtual ~Handler();
public:
virtual status_t start_element(const LSPString *name, const LSPString * const *atts);
virtual status_t end_element(const LSPString *name);
public:
/**
* Parse resource from file
* @param path path to the file
* @param root root node that will handle XML data
* @return status of operation
*/
status_t parse_file(const LSPString *path, Node *root);
status_t parse_file(const char *path, Node *root);
/**
* Parse resource from resource descriptor
* @param path path to the resource
* @param root root node that will handle XML data
* @return status of operation
*/
status_t parse_resource(const LSPString *path, Node *root);
status_t parse_resource(const char *path, Node *root);
/**
* Parse resource at specified URI. Depending on compilation flags,
* the URI will point at builtin resource or at local filesystem resource
* @param uri URI of the resource
* @param root root node that will handle XML data
* @return status of operation
*/
status_t parse(const LSPString *uri, Node *root);
status_t parse(const char *uri, Node *root);
status_t parse(io::IInStream *is, Node *root, size_t flags);
status_t parse(io::IInSequence *is, Node *root, size_t flags);
};
}
}
}
#endif /* PRIVATE_UI_XML_HANDLER_H_ */
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