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/*
* Copyright (C) 2004-2012 Geometer Plus <[email protected]>
*
* 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.
*/
#include <cstdlib>
#include "NCXReader.h"
#include "../util/MiscUtil.h"
#include "../util/EntityFilesCollector.h"
NCXReader::NCXReader(BookReader &modelReader) : myModelReader(modelReader), myReadState(READ_NONE), myPlayIndex(-65535) {
}
static const std::string TAG_NAVMAP = "navMap";
static const std::string TAG_NAVPOINT = "navPoint";
static const std::string TAG_NAVLABEL = "navLabel";
static const std::string TAG_CONTENT = "content";
static const std::string TAG_TEXT = "text";
void NCXReader::startElementHandler(const char *fullTag, const char **attributes) {
std::string tag = fullTag;
const std::size_t index = tag.rfind(':');
if (index != std::string::npos) {
tag = tag.substr(index + 1);
}
switch (myReadState) {
case READ_NONE:
if (TAG_NAVMAP == tag) {
myReadState = READ_MAP;
}
break;
case READ_MAP:
if (TAG_NAVPOINT == tag) {
const char *order = attributeValue(attributes, "playOrder");
myPointStack.push_back(NavPoint(order != 0 ? std::atoi(order) : myPlayIndex++, myPointStack.size()));
myReadState = READ_POINT;
}
break;
case READ_POINT:
if (TAG_NAVPOINT == tag) {
const char *order = attributeValue(attributes, "playOrder");
myPointStack.push_back(NavPoint(order != 0 ? std::atoi(order) : myPlayIndex++, myPointStack.size()));
} else if (TAG_NAVLABEL == tag) {
myReadState = READ_LABEL;
} else if (TAG_CONTENT == tag) {
const char *src = attributeValue(attributes, "src");
if (src != 0) {
myPointStack.back().ContentHRef = MiscUtil::decodeHtmlURL(src);
}
}
break;
case READ_LABEL:
if (TAG_TEXT == tag) {
myReadState = READ_TEXT;
}
break;
case READ_TEXT:
break;
}
}
void NCXReader::endElementHandler(const char *fullTag) {
std::string tag = fullTag;
const std::size_t index = tag.rfind(':');
if (index != std::string::npos) {
tag = tag.substr(index + 1);
}
switch (myReadState) {
case READ_NONE:
break;
case READ_MAP:
if (TAG_NAVMAP == tag) {
myReadState = READ_NONE;
}
break;
case READ_POINT:
if (TAG_NAVPOINT == tag) {
if (myPointStack.back().Text.empty()) {
myPointStack.back().Text = "...";
}
myNavigationMap[myPointStack.back().Order] = myPointStack.back();
myPointStack.pop_back();
myReadState = myPointStack.empty() ? READ_MAP : READ_POINT;
}
case READ_LABEL:
if (TAG_NAVLABEL == tag) {
myReadState = READ_POINT;
}
break;
case READ_TEXT:
if (TAG_TEXT == tag) {
myReadState = READ_LABEL;
}
break;
}
}
void NCXReader::characterDataHandler(const char *text, std::size_t len) {
if (myReadState == READ_TEXT) {
myPointStack.back().Text.append(text, len);
}
}
const std::vector<std::string> &NCXReader::externalDTDs() const {
return EntityFilesCollector::Instance().externalDTDs("xhtml");
}
const std::map<int,NCXReader::NavPoint> &NCXReader::navigationMap() const {
return myNavigationMap;
}
NCXReader::NavPoint::NavPoint() {
}
NCXReader::NavPoint::NavPoint(int order, std::size_t level) : Order(order), Level(level) {
}
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