Xteink-X4-crosspoint-reader/lib/Epub/Epub.h
Dave Allie 69f357998e
Move to smart pointers and split out ParsedText class (#6)
* Move to smart pointers and split out ParsedText class

* Cleanup ParsedText

* Fix clearCache functions and clear section cache if page load fails

* Bump Page and Section file versions

* Combine removeDir implementations in Epub

* Adjust screen margins
2025-12-12 22:13:34 +11:00

69 lines
2.3 KiB
C++

#pragma once
#include <Print.h>
#include <tinyxml2.h>
#include <string>
#include <unordered_map>
#include <vector>
class ZipFile;
class EpubTocEntry {
public:
std::string title;
std::string href;
std::string anchor;
int level;
EpubTocEntry(std::string title, std::string href, std::string anchor, const int level)
: title(std::move(title)), href(std::move(href)), anchor(std::move(anchor)), level(level) {}
};
class Epub {
// the title read from the EPUB meta data
std::string title;
// the cover image
std::string coverImageItem;
// the ncx file
std::string tocNcxItem;
// where is the EPUBfile?
std::string filepath;
// the spine of the EPUB file
std::vector<std::pair<std::string, std::string>> spine;
// the toc of the EPUB file
std::vector<EpubTocEntry> toc;
// the base path for items in the EPUB file
std::string contentBasePath;
// Uniq cache key based on filepath
std::string cachePath;
// find the path for the content.opf file
static bool findContentOpfFile(const ZipFile& zip, std::string& contentOpfFile);
bool parseContentOpf(ZipFile& zip, std::string& content_opf_file);
bool parseTocNcxFile(const ZipFile& zip);
void recursivelyParseNavMap(tinyxml2::XMLElement* element);
public:
explicit Epub(std::string filepath, const std::string& cacheDir) : filepath(std::move(filepath)) {
// create a cache key based on the filepath
cachePath = cacheDir + "/epub_" + std::to_string(std::hash<std::string>{}(this->filepath));
}
~Epub() = default;
std::string& getBasePath() { return contentBasePath; }
bool load();
bool clearCache() const;
void setupCacheDir() const;
const std::string& getCachePath() const;
const std::string& getPath() const;
const std::string& getTitle() const;
const std::string& getCoverImageItem() const;
uint8_t* readItemContentsToBytes(const std::string& itemHref, size_t* size = nullptr,
bool trailingNullByte = false) const;
bool readItemContentsToStream(const std::string& itemHref, Print& out, size_t chunkSize) const;
std::string& getSpineItem(int spineIndex);
int getSpineItemsCount() const;
EpubTocEntry& getTocItem(int tocTndex);
int getTocItemsCount() const;
int getSpineIndexForTocIndex(int tocIndex) const;
int getTocIndexForSpineIndex(int spineIndex) const;
};