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OpenBoard/src/domain/UBW3CWidget.cpp

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/*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "UBW3CWidget.h"
#include <QtNetwork>
#include <QtXml>
#include "frameworks/UBPlatformUtils.h"
#include "frameworks/UBFileSystemUtils.h"
#include "core/UBApplication.h"
#include "core/UBSettings.h"
#include "api/UBWidgetUniboardAPI.h"
#include "board/UBBoardController.h"
#include "core/memcheck.h"
bool UBW3CWidget::sTemplateLoaded = false;
QMap<QString, QString> UBW3CWidget::sNPAPIWrapperTemplates;
QString UBW3CWidget::sNPAPIWrappperConfigTemplate;
UBW3CWidget::UBW3CWidget(const QUrl& pWidgetUrl, QWidget *parent)
: UBAbstractWidget(pWidgetUrl, parent)
{
QString path = pWidgetUrl.toLocalFile();
QDir potentialDir(path);
if (!path.endsWith(".wgt") && !path.endsWith(".wgt/") && !potentialDir.exists())
{
int lastSlashIndex = path.lastIndexOf("/");
if (lastSlashIndex > 0)
{
path = path.mid(0, lastSlashIndex + 1);
}
}
if(!path.endsWith("/"))
path += "/";
int width = 300;
int height = 150;
QFile configFile(path + "config.xml");
configFile.open(QFile::ReadOnly);
QDomDocument doc;
doc.setContent(configFile.readAll());
QDomNodeList widgetDomList = doc.elementsByTagName("widget");
if (widgetDomList.count() > 0)
{
QDomElement widgetElement = widgetDomList.item(0).toElement();
width = widgetElement.attribute("width", "300").toInt();
height = widgetElement.attribute("height", "150").toInt();
mMetadatas.id = widgetElement.attribute("id", "");
//some early widget (<= 4.3.4) where using identifier instead of id
if (mMetadatas.id.length() == 0)
mMetadatas.id = widgetElement.attribute("identifier", "");
mMetadatas.version = widgetElement.attribute("version", "");
// TODO UB 4.x map properly ub namespace
mIsResizable = widgetElement.attribute("ub:resizable", "false") == "true";
mIsFreezable = widgetElement.attribute("ub:freezable", "true") == "true";
QString roles = widgetElement.attribute("ub:roles", "content tool").trimmed().toLower();
//------------------------------//
if( roles == "" || roles.contains("tool") )
{
mCanBeTool = UBAbstractWidget::type_ALL;
}
if( roles.contains("twin") )
{
mCanBeTool |= UBAbstractWidget::type_WIN;
}
if( roles.contains("tmac") )
{
mCanBeTool |= UBAbstractWidget::type_MAC;
}
if( roles.contains("tunix") )
{
mCanBeTool |= UBAbstractWidget::type_UNIX;
}
//---------//
if( roles == "" || roles.contains("content") )
{
mCanBeContent = UBAbstractWidget::type_ALL;
}
if( roles.contains("cwin") )
{
mCanBeContent |= UBAbstractWidget::type_WIN;
}
if( roles.contains("cmac") )
{
mCanBeContent |= UBAbstractWidget::type_MAC;
}
if( roles.contains("cunix") )
{
mCanBeContent |= UBAbstractWidget::type_UNIX;
}
//------------------------------//
QDomNodeList contentDomList = widgetElement.elementsByTagName("content");
if (contentDomList.count() > 0)
{
QDomElement contentElement = contentDomList.item(0).toElement();
mMainHtmlFileName = contentElement.attribute("src", "");
}
mMetadatas.name = textForSubElementByLocale(widgetElement, "name", locale());
mMetadatas.description = textForSubElementByLocale(widgetElement, "description ", locale());
QDomNodeList authorDomList = widgetElement.elementsByTagName("author");
if (authorDomList.count() > 0)
{
QDomElement authorElement = authorDomList.item(0).toElement();
mMetadatas.author = authorElement.text();
mMetadatas.authorHref = authorElement.attribute("href", "");
mMetadatas.authorEmail = authorElement.attribute("email ", "");
}
QDomNodeList propertiesDomList = widgetElement.elementsByTagName("preference");
for (uint i = 0; i < propertiesDomList.length(); i++)
{
QDomElement preferenceElement = propertiesDomList.at(i).toElement();
QString prefName = preferenceElement.attribute("name", "");
if (prefName.length() > 0)
{
QString prefValue = preferenceElement.attribute("value", "");
bool readOnly = (preferenceElement.attribute("readonly", "false") == "true");
mPreferences.insert(prefName, PreferenceValue(prefValue, readOnly));
}
}
}
if (mMainHtmlFileName.length() == 0)
{
QFile defaultStartFile(path + "index.htm");
if (defaultStartFile.exists())
{
mMainHtmlFileName = "index.htm";
}
else
{
QFile secondDefaultStartFile(path + "index.html");
if (secondDefaultStartFile.exists())
{
mMainHtmlFileName = "index.html";
}
}
}
mMainHtmlUrl = pWidgetUrl;
mMainHtmlUrl.setPath(pWidgetUrl.path() + "/" + mMainHtmlFileName);
// is it a valid local file ?
QFile f(mMainHtmlUrl.toLocalFile());
if(!f.exists())
mMainHtmlUrl = QUrl(mMainHtmlFileName);
connect(page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()), this, SLOT(javaScriptWindowObjectCleared()));
connect(UBApplication::boardController, SIGNAL(activeSceneChanged()), this, SLOT(javaScriptWindowObjectCleared()));
QWebView::load(mMainHtmlUrl);
setFixedSize(QSize(width, height));
mNominalSize = QSize(width, height);
}
UBW3CWidget::~UBW3CWidget()
{
// NOOP
}
void UBW3CWidget::javaScriptWindowObjectCleared()
{
UBWidgetUniboardAPI *uniboardAPI = new UBWidgetUniboardAPI(UBApplication::boardController->activeScene(), 0);
page()->mainFrame()->addToJavaScriptWindowObject("sankore", uniboardAPI);
}
bool UBW3CWidget::hasNPAPIWrapper(const QString& pMimeType)
{
loadNPAPIWrappersTemplates();
return sNPAPIWrapperTemplates.contains(pMimeType);
}
QString UBW3CWidget::createNPAPIWrapper(const QString& url,
const QString& pMimeType, const QSize& sizeHint, const QString& pName)
{
const QString userWidgetPath = UBSettings::settings()->userInteractiveDirectory() + "/" + tr("Web");
QDir userWidgetDir(userWidgetPath);
return createNPAPIWrapperInDir(url, userWidgetDir, pMimeType, sizeHint, pName);
}
QString UBW3CWidget::createNPAPIWrapperInDir(const QString& pUrl, const QDir& pDir,
const QString& pMimeType, const QSize& sizeHint,
const QString& pName)
{
QString url = pUrl;
url = UBFileSystemUtils::removeLocalFilePrefix(url);
QString name = pName;
QFileInfo fi(url);
if (name.length() == 0)
name = fi.baseName();
if (fi.exists()){
url = fi.fileName();
}
loadNPAPIWrappersTemplates();
QString htmlTemplate;
if (pMimeType.length() > 0 && sNPAPIWrapperTemplates.contains(pMimeType)){
htmlTemplate = sNPAPIWrapperTemplates.value(pMimeType);
}
else {
QString extension = UBFileSystemUtils::extension(url);
if (sNPAPIWrapperTemplates.contains(extension))
htmlTemplate = sNPAPIWrapperTemplates.value(extension);
}
if (htmlTemplate.length() > 0){
htmlTemplate = htmlTemplate.replace(QString("{in.url}"), url)
.replace(QString("{in.width}"), QString("%1").arg(sizeHint.width()))
.replace(QString("{in.height}"), QString("%1").arg(sizeHint.height()));
QString configTemplate = sNPAPIWrappperConfigTemplate
.replace(QString("{in.id}"), url)
.replace(QString("{in.width}"), QString("%1").arg(sizeHint.width()))
.replace(QString("{in.height}"), QString("%1").arg(sizeHint.height()))
.replace(QString("{in.name}"), name)
.replace(QString("{in.startFile}"), QString("index.htm"));
QString dirPath = pDir.path();
if (!pDir.exists())
pDir.mkpath(dirPath);
QString widgetLibraryPath = dirPath + "/" + name + ".wgt";
QDir widgetLibraryDir(widgetLibraryPath);
if (widgetLibraryDir.exists())
{
if (!UBFileSystemUtils::deleteDir(widgetLibraryDir.path()))
{
qWarning() << "Cannot delete old widget " << widgetLibraryDir.path();
}
}
widgetLibraryDir.mkpath(widgetLibraryPath);
if (fi.exists()){
QString target = widgetLibraryPath + "/" + fi.fileName();
QString source = pUrl;
source = UBFileSystemUtils::removeLocalFilePrefix(source);
QFile::copy(source, target);
}
QFile configFile(widgetLibraryPath + "/config.xml");
if (!configFile.open(QIODevice::WriteOnly))
{
qWarning() << "Cannot open file " << configFile.fileName();
return "";
}
QTextStream outConfig(&configFile);
outConfig.setCodec("UTF-8");
outConfig << configTemplate;
configFile.close();
QFile indexFile(widgetLibraryPath + "/index.htm");
if (!indexFile.open(QIODevice::WriteOnly))
{
qWarning() << "Cannot open file " << indexFile.fileName();
return "";
}
QTextStream outIndex(&indexFile);
outIndex.setCodec("UTF-8");
outIndex << htmlTemplate;
indexFile.close();
return widgetLibraryPath;
}
else
{
return "";
}
}
QString UBW3CWidget::createHtmlWrapperInDir(const QString& html, const QDir& pDir,
const QSize& sizeHint, const QString& pName)
{
QString widgetPath = pDir.path() + "/" + pName + ".wgt";
widgetPath = UBFileSystemUtils::nextAvailableFileName(widgetPath);
QDir widgetDir(widgetPath);
if (!widgetDir.exists())
{
widgetDir.mkpath(widgetDir.path());
}
QFile configFile(widgetPath + "/" + "config.xml");
if (configFile.exists())
{
configFile.remove(configFile.fileName());
}
if (!configFile.open(QIODevice::WriteOnly))
{
qWarning() << "Cannot open file " << configFile.fileName();
return "";
}
QTextStream outConfig(&configFile);
outConfig.setCodec("UTF-8");
outConfig << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << endl;
outConfig << "<widget xmlns=\"http://www.w3.org/ns/widgets\"" << endl;
outConfig << " xmlns:ub=\"http://uniboard.mnemis.com/widgets\"" << endl;
outConfig << " id=\"http://uniboard.mnemis.com/" << pName << "\"" <<endl;
outConfig << " version=\"1.0\"" << endl;
outConfig << " width=\"" << sizeHint.width() << "\"" << endl;
outConfig << " height=\"" << sizeHint.height() << "\"" << endl;
outConfig << " ub:resizable=\"true\">" << endl;
outConfig << " <name>" << pName << "</name>" << endl;
outConfig << " <content src=\"" << pName << ".html\"/>" << endl;
outConfig << "</widget>" << endl;
configFile.close();
const QString fullHtmlFileName = widgetPath + "/" + pName + ".html";
QFile widgetHtmlFile(fullHtmlFileName);
if (widgetHtmlFile.exists())
{
widgetHtmlFile.remove(widgetHtmlFile.fileName());
}
if (!widgetHtmlFile.open(QIODevice::WriteOnly))
{
qWarning() << "cannot open file " << widgetHtmlFile.fileName();
return "";
}
QTextStream outStartFile(&widgetHtmlFile);
outStartFile.setCodec("UTF-8");
outStartFile << "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">" << endl;
outStartFile << "<html>" << endl;
outStartFile << "<head>" << endl;
outStartFile << " <meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\">" << endl;
outStartFile << "</head>" << endl;
outStartFile << " <body>" << endl;
outStartFile << html << endl;
outStartFile << " </body>" << endl;
outStartFile << "</html>" << endl;
widgetHtmlFile.close();
return widgetPath;
}
QString UBW3CWidget::freezedWidgetPage()
{
static QString defaultcontent;
if (defaultcontent.isNull()) {
QString freezedWidgetDefaultContentFilePath = freezedWidgetFilePath();
QFile wrapperFile(freezedWidgetDefaultContentFilePath);
if (!wrapperFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
qDebug() << "can't open wrapper file " + freezedWidgetDefaultContentFilePath;
defaultcontent = "";
} else {
QByteArray arr = wrapperFile.readAll();
if (!arr.isEmpty()) {
defaultcontent = QString(arr);
} else {
qDebug() << "content of " + freezedWidgetDefaultContentFilePath + "is empty";
defaultcontent = "";
}
}
}
return defaultcontent;
}
QString UBW3CWidget::freezedWidgetFilePath()
{
return UBPlatformUtils::applicationResourcesDirectory() + "/etc/" + "freezedWidgetWrapper.html";
}
void UBW3CWidget::loadNPAPIWrappersTemplates()
{
if (!sTemplateLoaded)
{
sNPAPIWrapperTemplates.clear();
QString etcPath = UBPlatformUtils::applicationResourcesDirectory() + "/etc/";
QDir etcDir(etcPath);
foreach(QString fileName, etcDir.entryList())
{
if (fileName.startsWith("npapi-wrapper") && (fileName.endsWith(".htm") || fileName.endsWith(".html")))
{
QString htmlContent = UBFileSystemUtils::readTextFile(etcPath + fileName);
if (htmlContent.length() > 0)
{
QStringList tokens = fileName.split(".");
if (tokens.length() >= 4)
{
QString mime = tokens.at(tokens.length() - 4 );
mime += "/" + tokens.at(tokens.length() - 3);
QString fileExtension = tokens.at(tokens.length() - 2);
sNPAPIWrapperTemplates.insert(mime, htmlContent);
sNPAPIWrapperTemplates.insert(fileExtension, htmlContent);
}
}
}
}
sNPAPIWrappperConfigTemplate = UBFileSystemUtils::readTextFile(etcPath + "npapi-wrapper.config.xml");
sTemplateLoaded = true;
}
}
QString UBW3CWidget::textForSubElementByLocale(QDomElement rootElement, QString subTagName, QLocale locale)
{
QDomNodeList subList = rootElement.elementsByTagName(subTagName);
QString lang = locale.name();
if (lang.length() > 2)
lang[2] = QLatin1Char('-');
if (subList.count() > 1)
{
for(int i = 0; i < subList.count(); i++)
{
QDomNode node = subList.at(i);
QDomElement element = node.toElement();
QString configLang = element.attribute("xml:lang", "");
if(lang == configLang || (configLang.length() == 2 && configLang == lang.left(2)))
return element.text();
}
}
if (subList.count() >= 1)
{
QDomElement element = subList.item(0).toElement();
return element.text();
}
return "";
}