vdr-plugin-skindesigner/libtemplate/xmlparser.c
2014-11-15 09:47:22 +01:00

804 lines
24 KiB
C

#include "xmlparser.h"
#include "../config.h"
#include "../libcore/helpers.h"
using namespace std;
void SkinDesignerXMLErrorHandler (void * userData, xmlErrorPtr error) {
esyslog("skindesigner: Error in XML: %s", error->message);
}
cXmlParser::cXmlParser(void) {
doc = NULL;
root = NULL;
ctxt = NULL;
xmlInitParser();
initGenericErrorDefaultFunc(NULL);
xmlSetStructuredErrorFunc(NULL, SkinDesignerXMLErrorHandler);
ctxt = xmlNewParserCtxt();
}
cXmlParser::~cXmlParser() {
DeleteDocument();
xmlFreeParserCtxt(ctxt);
xmlCleanupParser();
}
/*********************************************************************
* PUBLIC Functions
*********************************************************************/
bool cXmlParser::ReadView(cTemplateView *view, string xmlFile) {
this->view = view;
string xmlPath = GetPath(xmlFile);
if (ctxt == NULL) {
esyslog("skindesigner: Failed to allocate parser context");
return false;
}
doc = xmlCtxtReadFile(ctxt, xmlPath.c_str(), NULL, XML_PARSE_NOENT | XML_PARSE_DTDVALID);
if (doc == NULL) {
esyslog("skindesigner: ERROR: TemplateView %s not parsed successfully.", xmlPath.c_str());
return false;
}
if (ctxt->valid == 0) {
esyslog("skindesigner: Failed to validate %s", xmlPath.c_str());
return false;
}
root = xmlDocGetRootElement(doc);
if (root == NULL) {
esyslog("skindesigner: ERROR: TemplateView %s is empty", xmlPath.c_str());
return false;
}
if (xmlStrcmp(root->name, (const xmlChar *) view->GetViewName())) {
return false;
}
return true;
}
bool cXmlParser::ReadPluginView(string plugName, int templateNumber, string templateName) {
string xmlPath = GetPath(templateName);
if (!FileExists(xmlPath) || ctxt == NULL) {
return false;
}
DeleteDocument();
doc = xmlCtxtReadFile(ctxt, xmlPath.c_str(), NULL, XML_PARSE_NOENT | XML_PARSE_DTDVALID);
if (doc == NULL) {
return false;
}
if (ctxt->valid == 0) {
esyslog("skindesigner: Failed to validate %s", xmlPath.c_str());
return false;
}
root = xmlDocGetRootElement(doc);
if (root == NULL) {
return false;
}
return true;
}
bool cXmlParser::ReadGlobals(cGlobals *globals, string xmlFile) {
this->globals = globals;
string xmlPath = GetPath(xmlFile);
if (ctxt == NULL) {
esyslog("skindesigner: Failed to allocate parser context");
return false;
}
doc = xmlCtxtReadFile(ctxt, xmlPath.c_str(), NULL, XML_PARSE_NOENT | XML_PARSE_DTDVALID);
if (doc == NULL ) {
esyslog("skindesigner: ERROR: Globals %s not parsed successfully.", xmlPath.c_str());
return false;
}
root = xmlDocGetRootElement(doc);
if (ctxt->valid == 0) {
esyslog("skindesigner: Failed to validate %s", xmlPath.c_str());
return false;
}
if (root == NULL) {
esyslog("skindesigner: ERROR: Globals %s is empty", xmlPath.c_str());
return false;
}
if (xmlStrcmp(root->name, (const xmlChar *) "globals")) {
return false;
}
return true;
}
bool cXmlParser::ParseView(void) {
vector<pair<string, string> > rootAttribs;
ParseAttributes(root->properties, root, rootAttribs);
if (!view)
return false;
view->SetParameters(rootAttribs);
xmlNodePtr node = root->xmlChildrenNode;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (view->ValidSubView((const char*)node->name)) {
ParseSubView(node);
} else if (view->ValidViewElement((const char*)node->name)) {
bool debugViewElement = DebugViewElement(node);
ParseViewElement(node->name, node->xmlChildrenNode, debugViewElement);
} else if (view->ValidViewList((const char*)node->name)) {
ParseViewList(node);
} else {
return false;
}
node = node->next;
}
return true;
}
bool cXmlParser::ParsePluginView(string plugName, int templateNumber) {
cTemplateView *plugView = new cTemplateViewMenu();
view->AddPluginView(plugName, templateNumber, plugView);
vector<pair<string, string> > attribs;
ParseAttributes(root->properties, root, attribs);
plugView->SetParameters(attribs);
xmlNodePtr childNode = root->xmlChildrenNode;
while (childNode != NULL) {
if (childNode->type != XML_ELEMENT_NODE) {
childNode = childNode->next;
continue;
}
if (plugView->ValidViewElement((const char*)childNode->name)) {
bool debugViewElement = DebugViewElement(childNode);
ParseViewElement(childNode->name, childNode->xmlChildrenNode, debugViewElement, plugView);
} else if (plugView->ValidViewList((const char*)childNode->name)) {
ParseViewList(childNode, plugView);
} else if (!xmlStrcmp(childNode->name, (const xmlChar *) "tab")) {
ParseViewTab(childNode, plugView);
} else {
return false;
}
childNode = childNode->next;
}
return true;
}
bool cXmlParser::ParseGlobals(void) {
xmlNodePtr node = root->xmlChildrenNode;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (!xmlStrcmp(node->name, (const xmlChar *) "colors")) {
ParseGlobalColors(node->xmlChildrenNode);
node = node->next;
continue;
} else if (!xmlStrcmp(node->name, (const xmlChar *) "variables")) {
ParseGlobalVariables(node->xmlChildrenNode);
node = node->next;
continue;
} else if (!xmlStrcmp(node->name, (const xmlChar *) "fonts")) {
ParseGlobalFonts(node->xmlChildrenNode);
node = node->next;
continue;
} else if (!xmlStrcmp(node->name, (const xmlChar *) "translations")) {
ParseTranslations(node->xmlChildrenNode);
node = node->next;
continue;
}
node = node->next;
}
return true;
}
void cXmlParser::DeleteDocument(void) {
if (doc) {
xmlFreeDoc(doc);
doc = NULL;
}
}
/*********************************************************************
* PRIVATE Functions
*********************************************************************/
string cXmlParser::GetPath(string xmlFile) {
string activeSkin = Setup.OSDSkin;
string activeTheme = Setup.OSDTheme;
string path = "";
if (!xmlFile.compare("globals.xml")) {
path = *cString::sprintf("%s%s/themes/%s/%s", *config.skinPath, activeSkin.c_str(), activeTheme.c_str(), xmlFile.c_str());
} else {
path = *cString::sprintf("%s%s/xmlfiles/%s", *config.skinPath, activeSkin.c_str(), xmlFile.c_str());
}
return path;
}
void cXmlParser::ParseGlobalColors(xmlNodePtr node) {
if (!node)
return;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (xmlStrcmp(node->name, (const xmlChar *) "color")) {
node = node->next;
continue;
}
xmlAttrPtr attr = node->properties;
if (attr == NULL) {
node = node->next;
continue;
}
xmlChar *colName = NULL;
xmlChar *colValue = NULL;
bool ok = false;
while (NULL != attr) {
if (xmlStrcmp(attr->name, (const xmlChar *) "name")) {
attr = attr->next;
continue;
}
ok = true;
colName = xmlGetProp(node, attr->name);
attr = attr->next;
}
if (ok) {
colValue = xmlNodeListGetString(doc, node->xmlChildrenNode, 1);
if (colName && colValue)
InsertColor((const char*)colName, (const char*)colValue);
}
if (colName)
xmlFree(colName);
if (colValue)
xmlFree(colValue);
node = node->next;
}
}
void cXmlParser::InsertColor(string name, string value) {
if (value.size() != 8)
return;
std::stringstream str;
str << value;
tColor colVal;
str >> std::hex >> colVal;
globals->colors.insert(pair<string, tColor>(name, colVal));
}
void cXmlParser::ParseGlobalVariables(xmlNodePtr node) {
if (!node)
return;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (xmlStrcmp(node->name, (const xmlChar *) "var")) {
node = node->next;
continue;
}
xmlAttrPtr attr = node->properties;
if (attr == NULL) {
node = node->next;
continue;
}
xmlChar *varName = NULL;
xmlChar *varType = NULL;
xmlChar *varValue = NULL;
while (NULL != attr) {
if (!xmlStrcmp(attr->name, (const xmlChar *) "name")) {
varName = xmlGetProp(node, attr->name);
} else if (!xmlStrcmp(attr->name, (const xmlChar *) "type")) {
varType = xmlGetProp(node, attr->name);
} else {
attr = attr->next;
continue;
}
attr = attr->next;
}
varValue = xmlNodeListGetString(doc, node->xmlChildrenNode, 1);
if (varName && varType && varValue)
InsertVariable((const char*)varName, (const char*)varType, (const char*)varValue);
if (varName)
xmlFree(varName);
if (varType)
xmlFree(varType);
if (varValue)
xmlFree(varValue);
node = node->next;
}
}
void cXmlParser::InsertVariable(string name, string type, string value) {
if (!type.compare("int")) {
int val = atoi(value.c_str());
globals->intVars.insert(pair<string, int>(name, val));
} else if (!type.compare("double")) {
double val = atof(value.c_str());
globals->doubleVars.insert(pair<string, double>(name, val));
} else if (!type.compare("string")) {
globals->stringVars.insert(pair<string, string>(name, value));
}
}
void cXmlParser::ParseGlobalFonts(xmlNodePtr node) {
if (!node)
return;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (xmlStrcmp(node->name, (const xmlChar *) "font")) {
node = node->next;
continue;
}
xmlAttrPtr attr = node->properties;
if (attr == NULL) {
node = node->next;
continue;
}
xmlChar *fontName = NULL;
xmlChar *fontValue = NULL;
bool ok = false;
while (NULL != attr) {
if (xmlStrcmp(attr->name, (const xmlChar *) "name")) {
attr = attr->next;
continue;
}
ok = true;
fontName = xmlGetProp(node, attr->name);
attr = attr->next;
}
if (ok) {
fontValue = xmlNodeListGetString(doc, node->xmlChildrenNode, 1);
if (fontName && fontValue)
globals->fonts.insert(pair<string, string>((const char*)fontName, (const char*)fontValue));
}
if (fontName)
xmlFree(fontName);
if (fontValue)
xmlFree(fontValue);
node = node->next;
}
}
void cXmlParser::ParseTranslations(xmlNodePtr node) {
if (!node)
return;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (xmlStrcmp(node->name, (const xmlChar *) "token")) {
node = node->next;
continue;
}
xmlAttrPtr attr = node->properties;
if (attr == NULL) {
node = node->next;
continue;
}
xmlChar *tokenName;
bool ok = false;
while (NULL != attr) {
if (xmlStrcmp(attr->name, (const xmlChar *) "name")) {
attr = attr->next;
continue;
}
ok = true;
tokenName = xmlGetProp(node, attr->name);
attr = attr->next;
}
if (!ok)
continue;
map < string, string > tokenTranslations;
xmlNodePtr nodeTrans = node->xmlChildrenNode;
while (nodeTrans != NULL) {
if (nodeTrans->type != XML_ELEMENT_NODE) {
nodeTrans = nodeTrans->next;
continue;
}
xmlChar *language = NULL;
if (xmlStrcmp(nodeTrans->name, (const xmlChar *) "trans")) {
nodeTrans = nodeTrans->next;
continue;
}
xmlAttrPtr attrTrans = nodeTrans->properties;
if (attrTrans == NULL) {
nodeTrans = nodeTrans->next;
continue;
}
ok = false;
while (NULL != attrTrans) {
if (!ok && xmlStrcmp(attrTrans->name, (const xmlChar *) "lang")) {
attrTrans = attrTrans->next;
continue;
}
ok = true;
language = xmlGetProp(nodeTrans, attrTrans->name);
attrTrans = attrTrans->next;
}
if (!ok)
continue;
xmlChar *value = NULL;
value = xmlNodeListGetString(doc, nodeTrans->xmlChildrenNode, 1);
if (language && value)
tokenTranslations.insert(pair<string, string>((const char*)language, (const char*)value));
if (language)
xmlFree(language);
if (value)
xmlFree(value);
nodeTrans = nodeTrans->next;
}
globals->translations.insert(pair<string, map < string, string > >((const char*)tokenName, tokenTranslations));
xmlFree(tokenName);
node = node->next;
}
}
bool cXmlParser::ParseSubView(xmlNodePtr node) {
if (!node)
return false;
if (!view)
return false;
cTemplateView *subView = new cTemplateViewMenu();
view->AddSubView((const char*)node->name, subView);
vector<pair<string, string> > subViewAttribs;
ParseAttributes(node->properties, node, subViewAttribs);
subView->SetParameters(subViewAttribs);
xmlNodePtr childNode = node->xmlChildrenNode;
while (childNode != NULL) {
if (childNode->type != XML_ELEMENT_NODE) {
childNode = childNode->next;
continue;
}
if (subView->ValidViewElement((const char*)childNode->name)) {
bool debugViewElement = DebugViewElement(childNode);
ParseViewElement(childNode->name, childNode->xmlChildrenNode, debugViewElement, subView);
} else if (subView->ValidViewList((const char*)childNode->name)) {
ParseViewList(childNode, subView);
} else if (!xmlStrcmp(childNode->name, (const xmlChar *) "tab")) {
ParseViewTab(childNode, subView);
} else {
return false;
}
childNode = childNode->next;
}
return true;
}
void cXmlParser::ParseViewElement(const xmlChar * viewElement, xmlNodePtr node, bool debugVE, cTemplateView *subView) {
if (!node)
return;
if (!view)
return;
if (debugVE) {
dsyslog("skindesigner: activating debugging of viewElement %s", (const char*)viewElement);
}
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (xmlStrcmp(node->name, (const xmlChar *) "area") && xmlStrcmp(node->name, (const xmlChar *) "areascroll")) {
esyslog("skindesigner: invalid tag \"%s\"", node->name);
node = node->next;
continue;
}
xmlAttrPtr attr = node->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, node, attribs);
cTemplatePixmap *pix = new cTemplatePixmap();
if (!xmlStrcmp(node->name, (const xmlChar *) "areascroll")) {
pix->SetScrolling();
}
pix->SetParameters(attribs);
ParseFunctionCalls(node->xmlChildrenNode, pix);
if (subView)
subView->AddPixmap((const char*)viewElement, pix, debugVE);
else
view->AddPixmap((const char*)viewElement, pix, debugVE);
node = node->next;
}
}
void cXmlParser::ParseViewList(xmlNodePtr parentNode, cTemplateView *subView) {
if (!parentNode || !view)
return;
xmlAttrPtr attr = parentNode->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, parentNode, attribs);
cTemplateViewList *viewList = new cTemplateViewList();
viewList->SetGlobals(globals);
viewList->SetParameters(attribs);
xmlNodePtr node = parentNode->xmlChildrenNode;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (!xmlStrcmp(node->name, (const xmlChar *) "currentelement")) {
xmlNodePtr childNode = node->xmlChildrenNode;
if (!childNode)
continue;
cTemplateViewElement *currentElement = new cTemplateViewElement();
xmlAttrPtr attrCur = node->properties;
vector<pair<string, string> > attribsCur;
ParseAttributes(attrCur, node, attribsCur);
currentElement->SetGlobals(globals);
currentElement->SetParameters(attribsCur);
bool debugCurrent = false;
for (vector<pair<string, string> >::iterator it = attribsCur.begin(); it != attribsCur.end(); it++) {
if (!(it->first).compare("debug")) {
debugCurrent = true;
break;
}
}
if (debugCurrent)
currentElement->ActivateDebugTokens();
while (childNode != NULL) {
if (childNode->type != XML_ELEMENT_NODE) {
childNode = childNode->next;
continue;
}
if ((!xmlStrcmp(childNode->name, (const xmlChar *) "area")) || (!xmlStrcmp(childNode->name, (const xmlChar *) "areascroll"))) {
xmlAttrPtr attrPix = childNode->properties;
vector<pair<string, string> > attribsPix;
ParseAttributes(attrPix, childNode, attribsPix);
cTemplatePixmap *pix = new cTemplatePixmap();
pix->SetParameters(attribsPix);
ParseFunctionCalls(childNode->xmlChildrenNode, pix);
if (!xmlStrcmp(childNode->name, (const xmlChar *) "areascroll")) {
pix->SetScrolling();
}
currentElement->AddPixmap(pix);
}
childNode = childNode->next;
}
viewList->AddCurrentElement(currentElement);
} else if (!xmlStrcmp(node->name, (const xmlChar *) "listelement")) {
bool debugViewList = DebugViewElement(node);
xmlNodePtr childNode = node->xmlChildrenNode;
if (!childNode)
continue;
cTemplateViewElement *listElement = new cTemplateViewElement();
if (debugViewList)
listElement->ActivateDebugTokens();
while (childNode != NULL) {
if (childNode->type != XML_ELEMENT_NODE) {
childNode = childNode->next;
continue;
}
if ((!xmlStrcmp(childNode->name, (const xmlChar *) "area")) || (!xmlStrcmp(childNode->name, (const xmlChar *) "areascroll"))) {
xmlAttrPtr attrPix = childNode->properties;
vector<pair<string, string> > attribsPix;
ParseAttributes(attrPix, childNode, attribsPix);
cTemplatePixmap *pix = new cTemplatePixmap();
pix->SetParameters(attribsPix);
ParseFunctionCalls(childNode->xmlChildrenNode, pix);
if (!xmlStrcmp(childNode->name, (const xmlChar *) "areascroll")) {
pix->SetScrolling();
}
listElement->AddPixmap(pix);
}
childNode = childNode->next;
}
viewList->AddListElement(listElement);
} else {
node = node->next;
continue;
}
node = node->next;
}
if (subView)
subView->AddViewList((const char*)parentNode->name, viewList);
else
view->AddViewList((const char*)parentNode->name, viewList);
}
void cXmlParser::ParseViewTab(xmlNodePtr parentNode, cTemplateView *subView) {
if (!parentNode || !view || !subView)
return;
xmlAttrPtr attr = parentNode->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, parentNode, attribs);
cTemplateViewTab *viewTab = new cTemplateViewTab();
viewTab->SetGlobals(globals);
viewTab->SetParameters(attribs);
viewTab->SetScrolling();
xmlNodePtr node = parentNode->xmlChildrenNode;
ParseFunctionCalls(node, viewTab);
subView->AddViewTab(viewTab);
}
void cXmlParser::ParseFunctionCalls(xmlNodePtr node, cTemplatePixmap *pix) {
if (!node)
return;
if (!view)
return;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (!xmlStrcmp(node->name, (const xmlChar *) "loop")) {
xmlNodePtr childNode = node->xmlChildrenNode;
if (!childNode)
continue;
xmlAttrPtr attr = node->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, node, attribs);
cTemplateLoopFunction *loopFunc = new cTemplateLoopFunction();
loopFunc->SetParameters(attribs);
ParseLoopFunctionCalls(childNode, loopFunc);
pix->AddLoopFunction(loopFunc);
node = node->next;
} else if (view->ValidFunction((const char*)node->name)) {
xmlAttrPtr attr = node->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, node, attribs);
pix->AddFunction((const char*)node->name, attribs);
node = node->next;
} else {
node = node->next;
continue;
}
}
}
void cXmlParser::ParseLoopFunctionCalls(xmlNodePtr node, cTemplateLoopFunction *loopFunc) {
if (!node)
return;
if (!view)
return;
while (node != NULL) {
if (node->type != XML_ELEMENT_NODE) {
node = node->next;
continue;
}
if (view->ValidFunction((const char*)node->name)) {
xmlAttrPtr attr = node->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, node, attribs);
loopFunc->AddFunction((const char*)node->name, attribs);
node = node->next;
} else {
node = node->next;
continue;
}
}
}
bool cXmlParser::ParseAttributes(xmlAttrPtr attr, xmlNodePtr node, vector<pair<string, string> > &attribs) {
if (attr == NULL) {
return false;
}
if (!view)
return false;
while (NULL != attr) {
string name = (const char*)attr->name;
if (!name.compare("debug")) {
attribs.push_back(pair<string, string>((const char*)attr->name, "true"));
attr = attr->next;
continue;
}
xmlChar *value = NULL;
value = xmlGetProp(node, attr->name);
if (!view->ValidAttribute((const char*)node->name, (const char*)attr->name)) {
attr = attr->next;
if (value)
xmlFree(value);
continue;
}
if (value)
attribs.push_back(pair<string, string>((const char*)attr->name, (const char*)value));
attr = attr->next;
if (value)
xmlFree(value);
}
return true;
}
bool cXmlParser::DebugViewElement(xmlNodePtr node) {
xmlAttrPtr attr = node->properties;
vector<pair<string, string> > attribs;
ParseAttributes(attr, node, attribs);
for (vector<pair<string, string> >::iterator it = attribs.begin(); it != attribs.end(); it++) {
if (!(it->first).compare("debug"))
return true;
}
return false;
}