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OpenBoard/src/web/UBTrapFlashController.cpp

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/*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard 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, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard 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 OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBTrapFlashController.h"
#include <QtXml>
#include "frameworks/UBFileSystemUtils.h"
#include "core/UBApplicationController.h"
#include "core/UBApplication.h"
#include "core/UBSettings.h"
#include "network/UBNetworkAccessManager.h"
#include "domain/UBGraphicsScene.h"
#include "board/UBBoardController.h"
#include "frameworks/UBPlatformUtils.h"
#include "ui_trapFlash.h"
#include "core/memcheck.h"
UBTrapFlashController::UBTrapFlashController(QWidget* parent)
: QObject(parent)
, mTrapFlashUi(0)
, mTrapFlashDialog(0)
, mParentWidget(parent)
, mCurrentWebFrame(0)
{
// NOOP
}
UBTrapFlashController::~UBTrapFlashController()
{
// NOOP
}
void UBTrapFlashController::showTrapFlash()
{
if (!mTrapFlashDialog)
{
Qt::WindowFlags flag = Qt::Dialog | Qt::WindowMaximizeButtonHint | Qt::WindowCloseButtonHint ;
flag &= ~ Qt::WindowContextHelpButtonHint;
flag &= ~ Qt::WindowMinimizeButtonHint;
mTrapFlashDialog = new QDialog(mParentWidget, flag);
mTrapFlashUi = new Ui::trapFlashDialog();
mTrapFlashUi->setupUi(mTrapFlashDialog);
mTrapFlashUi->webView->page()->setNetworkAccessManager(UBNetworkAccessManager::defaultAccessManager());
int viewWidth = mParentWidget->width() / 2;
int viewHeight = mParentWidget->height() * 2. / 3.;
mTrapFlashDialog->setGeometry(
(mParentWidget->width() - viewWidth) / 2
, (mParentWidget->height() - viewHeight) / 2
, viewWidth
, viewHeight);
connect(mTrapFlashUi->flashCombobox, SIGNAL(currentIndexChanged(int)), this, SLOT(selectFlash(int)));
connect(mTrapFlashUi->widgetNameLineEdit, SIGNAL(textChanged(const QString &)), this, SLOT(text_Changed(const QString &)));
connect(mTrapFlashUi->widgetNameLineEdit, SIGNAL(textEdited(const QString &)), this, SLOT(text_Edited(const QString &)));
connect(mTrapFlashUi->createWidgetButton, SIGNAL(clicked(bool)), this, SLOT(createWidget()));
}
mTrapFlashDialog->show();
}
void UBTrapFlashController::text_Changed(const QString &newText)
{
QString new_text = newText;
#ifdef Q_WS_WIN // Defined on Windows.
QString illegalCharList(" < > : \" / \\ | ? * ");
QRegExp regExp("[<>:\"/\\\\|?*]");
#endif
#ifdef Q_WS_QWS // Defined on Qt for Embedded Linux.
QString illegalCharList(" < > : \" / \\ | ? * ");
QRegExp regExp("[<>:\"/\\\\|?*]");
#endif
#ifdef Q_WS_MAC // Defined on Mac OS X.
QString illegalCharList(" < > : \" / \\ | ? * ");
QRegExp regExp("[<>:\"/\\\\|?*]");
#endif
#ifdef Q_WS_X11 // Defined on X11.
QString illegalCharList(" < > : \" / \\ | ? * ");
QRegExp regExp("[<>:\"/\\\\|?*]");
#endif
if(new_text.indexOf(regExp) > -1)
{
new_text.remove(regExp);
mTrapFlashUi->widgetNameLineEdit->setText(new_text);
QToolTip::showText(mTrapFlashUi->widgetNameLineEdit->mapToGlobal(QPoint()), "Application name can`t contain any of the following characters:\r\n"+illegalCharList);
}
}
void UBTrapFlashController::text_Edited(const QString &newText)
{
Q_UNUSED(newText);
}
void UBTrapFlashController::hideTrapFlash()
{
if (mTrapFlashDialog)
{
mTrapFlashDialog->hide();
}
}
void UBTrapFlashController::updateListOfFlashes(const QList<UBWebKitUtils::HtmlObject>& pAllFlashes)
{
if (mTrapFlashDialog)
{
mAvailableFlashes = pAllFlashes;
disconnect(mTrapFlashUi->flashCombobox, SIGNAL(currentIndexChanged(int)), this, SLOT(selectFlash(int)));
mTrapFlashUi->flashCombobox->clear();
mTrapFlashUi->flashCombobox->addItem(tr("Whole page"));
foreach(UBWebKitUtils::HtmlObject wrapper, pAllFlashes)
{
mTrapFlashUi->flashCombobox->addItem(widgetNameForObject(wrapper));
}
connect(mTrapFlashUi->flashCombobox, SIGNAL(currentIndexChanged(int)), this, SLOT(selectFlash(int)));
selectFlash(mTrapFlashUi->flashCombobox->currentIndex());
}
}
void UBTrapFlashController::selectFlash(int pFlashIndex)
{
if (pFlashIndex == 0)
{
mTrapFlashUi->webView->setHtml(generateFullPageHtml("", false));
QVariant res = mCurrentWebFrame->evaluateJavaScript("window.document.title");
mTrapFlashUi->widgetNameLineEdit->setText(res.toString().trimmed());
}
else if (pFlashIndex > 0 && pFlashIndex <= mAvailableFlashes.size())
{
UBWebKitUtils::HtmlObject currentObject = mAvailableFlashes.at(pFlashIndex - 1);
mTrapFlashUi->webView->setHtml(generateHtml(currentObject, "", false));
mTrapFlashUi->widgetNameLineEdit->setText(widgetNameForObject(currentObject));
}
}
void UBTrapFlashController::createWidget()
{
int selectedIndex = mTrapFlashUi->flashCombobox->currentIndex();
if (selectedIndex == 0)
{
// full page widget
QString tempDir = UBFileSystemUtils::createTempDir("TrapFlashRendering");
QDir widgetDir(tempDir + "/" + mTrapFlashUi->widgetNameLineEdit->text() + ".wgt");
if (widgetDir.exists() && !UBFileSystemUtils::deleteDir(widgetDir.path()))
{
qWarning() << "Cannot delete " << widgetDir.path();
}
widgetDir.mkpath(widgetDir.path());
generateFullPageHtml(widgetDir.path(), true);
generateIcon(widgetDir.path());
generateConfig(800, 600, widgetDir.path());
//generateDefaultPng(width, height, widgetDir.path());
importWidgetInLibrary(widgetDir);
UBFileSystemUtils::deleteDir(tempDir);
}
else
{
// flash widget
UBWebKitUtils::HtmlObject selectedObject = mAvailableFlashes.at(selectedIndex - 1);
UBApplication::applicationController->showBoard();
UBApplication::boardController->downloadURL(QUrl(selectedObject.source), QString(), QPoint(0, 0), QSize(selectedObject.width, selectedObject.height));
}
QString freezedWidgetPath = UBPlatformUtils::applicationResourcesDirectory() + "/etc/freezedWidgetWrapper.html";
mTrapFlashUi->webView->load(QUrl::fromLocalFile(freezedWidgetPath));
mTrapFlashDialog->hide();
}
void UBTrapFlashController::importWidgetInLibrary(QDir pSourceDir)
{
const QString userWidgetPath = UBSettings::settings()->userInteractiveDirectory() + "/" + tr("Web");
QDir userWidgetDir(userWidgetPath);
if (!userWidgetDir.exists())
{
userWidgetDir.mkpath(userWidgetPath);
}
QString widgetLibraryPath = userWidgetPath + "/" + mTrapFlashUi->widgetNameLineEdit->text() + ".wgt";
QDir widgetLibraryDir(widgetLibraryPath);
if (widgetLibraryDir.exists())
{
if (!UBFileSystemUtils::deleteDir(widgetLibraryDir.path()))
{
qWarning() << "Cannot delete old widget " << widgetLibraryDir.path();
}
}
qDebug() << "Widget imported in path " << widgetLibraryPath;
UBFileSystemUtils::copyDir(pSourceDir.path(), widgetLibraryPath);
// also add to current scene
if (UBApplication::applicationController)
UBApplication::applicationController->showBoard();
if (UBApplication::boardController &&
UBApplication::boardController->activeScene())
{
UBApplication::boardController->activeScene()->addWidget(QUrl::fromLocalFile(widgetLibraryPath));
}
}
void UBTrapFlashController::updateTrapFlashFromPage(QWebFrame* pCurrentWebFrame)
{
if (pCurrentWebFrame && mTrapFlashDialog && mTrapFlashDialog->isVisible())
{
QList<UBWebKitUtils::HtmlObject> list = UBWebKitUtils::objectsInFrame(pCurrentWebFrame);
mCurrentWebFrame = pCurrentWebFrame;
updateListOfFlashes(list);
}
}
QString UBTrapFlashController::generateIcon(const QString& pDirPath)
{
QDesktopWidget* desktop = QApplication::desktop();
QPoint webViewPosition = mTrapFlashUi->webView->mapToGlobal(mTrapFlashUi->webView->pos());
QSize webViewSize = mTrapFlashUi->webView->size();
QPixmap capture = QPixmap::grabWindow(desktop->winId(), webViewPosition.x(), webViewPosition.y()
, webViewSize.width() - 10, webViewSize.height() -10);
QPixmap widgetIcon(75,75);
widgetIcon.fill(Qt::transparent);
QPainter painter(&widgetIcon);
painter.setRenderHint(QPainter::Antialiasing);
painter.setBrush(QBrush(QColor(180,180,180)));
painter.setPen(Qt::NoPen);
painter.drawRoundedRect(0, 0, 75, 75, 10, 10);
QPixmap icon = capture.scaled(65, 65);
painter.drawPixmap(5,5,icon);
QString iconFile = pDirPath + "/icon.png";
widgetIcon.save(iconFile, "PNG");
return iconFile;
}
void UBTrapFlashController::generateConfig(int pWidth, int pHeight, const QString& pDestinationPath)
{
QFile configFile(pDestinationPath + "/" + "config.xml");
if (configFile.exists())
{
configFile.remove(configFile.fileName());
}
if (!configFile.open(QIODevice::WriteOnly))
{
qWarning() << "Cannot open file " << configFile.fileName();
return;
}
QTextStream out(&configFile);
out.setCodec("UTF-8");
out << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << endl;
out << "<widget xmlns=\"http://www.w3.org/ns/widgets\"" << endl;
out << " xmlns:ub=\"http://uniboard.mnemis.com/widgets\"" << endl;
out << " identifier=\"http://uniboard.mnemis.com/" << mTrapFlashUi->widgetNameLineEdit->text() << "\"" <<endl;
out << " version=\"1.0\"" << endl;
out << " width=\"" << pWidth << "\"" << endl;
out << " height=\"" << pHeight << "\"" << endl;
out << " ub:resizable=\"true\">" << endl;
out << " <name>" << mTrapFlashUi->widgetNameLineEdit->text() << "</name>" << endl;
out << " <content src=\"" << mTrapFlashUi->widgetNameLineEdit->text() << ".html\"/>" << endl;
out << "</widget>" << endl;
configFile.close();
}
QString UBTrapFlashController::generateFullPageHtml(const QString& pDirPath, bool pGenerateFile)
{
QString htmlContentString;
htmlContentString += "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\r\n";
htmlContentString += "<html xmlns=\"http://www.w3.org/1999/xhtml\">\r\n";
htmlContentString += " <head>\r\n";
htmlContentString += " <meta http-equiv=\"refresh\" content=\"0; " + mCurrentWebFrame->url().toString() + "\">\r\n";
htmlContentString += " </head>\r\n";
htmlContentString += " <body>\r\n";
htmlContentString += " Redirect to target...\r\n";
htmlContentString += " </body>\r\n";
htmlContentString += "</html>\r\n";
if (!pGenerateFile)
{
return htmlContentString;
}
else
{
QString fileName = mTrapFlashUi->widgetNameLineEdit->text();
const QString fullHtmlFileName = pDirPath + "/" + fileName + ".html";
QDir dir(pDirPath);
if (!dir.exists())
{
dir.mkpath(dir.path());
}
QFile widgetHtmlFile(fullHtmlFileName);
if (widgetHtmlFile.exists())
{
widgetHtmlFile.remove(widgetHtmlFile.fileName());
}
if (!widgetHtmlFile.open(QIODevice::WriteOnly))
{
qWarning() << "cannot open file " << widgetHtmlFile.fileName();
return "";
}
QTextStream out(&widgetHtmlFile);
out << htmlContentString;
widgetHtmlFile.close();
return widgetHtmlFile.fileName();
}
}
QString UBTrapFlashController::generateHtml(const UBWebKitUtils::HtmlObject& pObject,
const QString& pDirPath, bool pGenerateFile)
{
qDebug() << pObject.source;
QUrl objectUrl(pObject.source);
QString objectFullUrl = pObject.source;
if (!objectUrl.isValid())
{
qWarning() << "invalid URL " << pObject.source;
return "";
}
if (objectUrl.isRelative())
{
int lastSlashIndex = mCurrentWebFrame->url().toString().lastIndexOf("/");
QString objectPath = mCurrentWebFrame->url().toString().left(lastSlashIndex);
objectFullUrl = objectPath+ "/" + pObject.source;
}
QString htmlContentString;
htmlContentString += "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\n";
htmlContentString += "<html>\n";
htmlContentString += "<head>\n";
htmlContentString += " <meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\">\n";
htmlContentString += "</head>\n";
if (!pGenerateFile)
{
htmlContentString += "<body bgcolor=\"rgb(180,180,180)\">\n";
}
else
{
htmlContentString += "<body>\n";
}
htmlContentString += " <div align='center'>\n";
if (mCurrentWebFrame->url().toString().contains("youtube"))
{
QVariant res = mCurrentWebFrame->evaluateJavaScript("window.document.getElementById('embed_code').value");
//force windowsless mode
htmlContentString += res.toString().replace("></embed>", " wmode='opaque'></embed>");
}
else
{
htmlContentString += " <object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000'\n";
htmlContentString += " codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0'\n";
htmlContentString += " width='" + QString::number(pObject.width) + "' height='" + QString::number(pObject.height) + "'>\n";
htmlContentString += " <param name='movie' value='" + objectFullUrl + "'>\n";
htmlContentString += " <param name='quality' value='high'>\n";
htmlContentString += " <param name='wmode' value='opaque'>\n";
htmlContentString += " <embed src='" + objectFullUrl + "'\n";
htmlContentString += " quality='high'\n";
htmlContentString += " pluginspage='http://www.macromedia.com/go/getflashplayer'\n";
htmlContentString += " type='application/x-shockwave-flash'\n";
htmlContentString += " width='" + QString::number(pObject.width - 20) + "' height='" + QString::number(pObject.height - 20) + "' wmode='opaque'>\n";
htmlContentString += " </embed>\n";
htmlContentString += " </object>\n";
}
htmlContentString += " </div>\n";
htmlContentString += "</body>\n";
htmlContentString += "</html>\n";
if (!pGenerateFile)
{
return htmlContentString;
}
else
{
QString fileName = mTrapFlashUi->widgetNameLineEdit->text();
const QString fullHtmlFileName = pDirPath + "/" + fileName + ".html";
QDir dir(pDirPath);
if (!dir.exists())
{
dir.mkpath(dir.path());
}
QFile widgetHtmlFile(fullHtmlFileName);
if (widgetHtmlFile.exists())
{
widgetHtmlFile.remove(widgetHtmlFile.fileName());
}
if (!widgetHtmlFile.open(QIODevice::WriteOnly))
{
qWarning() << "cannot open file " << widgetHtmlFile.fileName();
return "";
}
QTextStream out(&widgetHtmlFile);
out << htmlContentString;
widgetHtmlFile.close();
return widgetHtmlFile.fileName();
}
}
QString UBTrapFlashController::widgetNameForObject(UBWebKitUtils::HtmlObject pObject)
{
QString url = pObject.source;
int parametersIndex = url.indexOf("?");
if(parametersIndex != -1)
url = url.left(parametersIndex);
int lastSlashIndex = url.lastIndexOf("/");
QString result = url.right(url.length() - lastSlashIndex);
result = UBFileSystemUtils::cleanName(result);
return result;
}