Implemented Sankore-729 - previews images for web search results supports images, audios, videos and flash content.

Images previews is adjusted now.
Mime type detection mechanism is more common now.

src/board/UBBoardController.cpp

@@ -868,6 +868,8 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
     if(position != -1)
         mimeType=mimeType.left(position);
 
+    UBMimeType::Enum itemMimeType = UBFileSystemUtils::mimeTypeFromString(mimeType);
+
     if (!pSuccess)
     {
         UBApplication::showMessage(tr("Downloading content %1 failed").arg(sourceUrl.toString()));
@@ -877,11 +879,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
     if (!sourceUrl.toString().startsWith("file://") && !sourceUrl.toString().startsWith("uniboardTool://"))
         UBApplication::showMessage(tr("Download finished"));
 
-    if (mimeType == "image/jpeg"
+    if (UBMimeType::RasterImage == itemMimeType)
-            || mimeType == "image/png"
-            || mimeType == "image/gif"
-            || mimeType == "image/tiff"
-            || mimeType == "image/bmp")
     {
 
         qDebug() << "accepting mime type" << mimeType << "as raster image";
@@ -904,7 +902,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
             UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
         }
     }
-    else if (mimeType == "image/svg+xml")
+    else if (UBMimeType::VectorImage == itemMimeType)
     {
         qDebug() << "accepting mime type" << mimeType << "as vecto image";
 
@@ -922,7 +920,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
             UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
         }
     }
-    else if (mimeType == "application/vnd.apple-widget") //mime type invented by us :-(
+    else if (UBMimeType::AppleWidget == itemMimeType) //mime type invented by us :-(
     {
         qDebug() << "accepting mime type" << mimeType << "as Apple widget";
 
@@ -946,7 +944,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
             UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
         }
     }
-    else if (mimeType == "application/widget")
+    else if (UBMimeType::W3CWidget == itemMimeType)
     {
         qDebug() << "accepting mime type" << mimeType << "as W3C widget";
         QUrl widgetUrl = sourceUrl;
@@ -967,7 +965,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
             UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
         }
     }
-    else if (mimeType.startsWith("video/"))
+    else if (UBMimeType::Video == itemMimeType)
     {
         qDebug() << "accepting mime type" << mimeType << "as video";
 
@@ -996,7 +994,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
 
         UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
     }
-    else if (mimeType.startsWith("audio/"))
+    else if (UBMimeType::Audio == itemMimeType)
     {
         qDebug() << "accepting mime type" << mimeType << "as audio";
 
@@ -1026,7 +1024,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
         UBDrawingController::drawingController()->setStylusTool(UBStylusTool::Selector);
     }
 
-    else if (mimeType.startsWith("application/x-shockwave-flash"))
+    else if (UBMimeType::Flash == itemMimeType)
     {
 
         qDebug() << "accepting mime type" << mimeType << "as flash";
@@ -1073,7 +1071,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
             delete eduMediaFile;
 
     }
-    else if (mimeType.startsWith("application/pdf"))
+    else if (UBMimeType::PDF == itemMimeType)
     {
         qDebug() << "accepting mime type" << mimeType << "as PDF";
         qDebug() << "pdf data length: " << pData.size();
@@ -1097,7 +1095,7 @@ void UBBoardController::downloadFinished(bool pSuccess, QUrl sourceUrl, QString
             selectedDocument()->setMetaData(UBSettings::documentUpdatedAt, UBStringUtils::toUtcIsoDateTime(QDateTime::currentDateTime()));
         }
     }
-    else if (mimeType.startsWith("application/vnd.mnemis-uniboard-tool"))
+    else if (UBMimeType::UniboardTool == itemMimeType)
     {
         qDebug() << "accepting mime type" << mimeType << "as Uniboard Tool";
 

src/core/UB.h

@@ -20,6 +20,23 @@
 
 #define UB_MAX_ZOOM 15
 
+struct UBMimeType
+{
+    enum Enum
+    {
+        RasterImage = 0,
+        VectorImage,
+        AppleWidget,
+        W3CWidget,
+        Video,
+        Audio,
+        Flash,
+        PDF,
+        UniboardTool,
+        UNKNOWN
+    };
+};
+
 struct UBStylusTool
 {
     enum Enum

src/frameworks/UBFileSystemUtils.cpp

@@ -535,6 +535,59 @@ QString UBFileSystemUtils::fileExtensionFromMimeType(const QString& pMimeType)
 }
 
 
+UBMimeType::Enum UBFileSystemUtils::mimeTypeFromString(const QString& typeString)
+{
+    UBMimeType::Enum type = UBMimeType::UNKNOWN;
+
+    if (typeString == "image/jpeg"
+        || typeString == "image/png"
+        || typeString == "image/gif"
+        || typeString == "image/tiff"
+        || typeString == "image/bmp")
+    {
+        type = UBMimeType::RasterImage;
+    }
+    else if (typeString == "image/svg+xml")
+    {
+        type = UBMimeType::VectorImage;
+    }
+    else if (typeString == "application/vnd.apple-widget")
+    {
+        type = UBMimeType::AppleWidget;
+    }
+    else if (typeString == "application/widget")
+    {
+        type = UBMimeType::W3CWidget;
+    }
+    else if (typeString.startsWith("video/"))
+    {
+        type = UBMimeType::Video;
+    }
+    else if (typeString.startsWith("audio/"))
+    {
+        type = UBMimeType::Audio;
+    }
+    else if (typeString.startsWith("application/x-shockwave-flash"))
+    {
+        type = UBMimeType::Flash;
+    }
+    else if (typeString.startsWith("application/pdf"))
+    {
+        type = UBMimeType::PDF;
+    }
+    else if (typeString.startsWith("application/vnd.mnemis-uniboard-tool"))
+    {
+        type = UBMimeType::UniboardTool;
+    }
+
+    return type;
+}
+
+UBMimeType::Enum UBFileSystemUtils::mimeTypeFromUrl(const QUrl& url)
+{
+    return mimeTypeFromString(mimeTypeFromFileName(url.toString()));
+}
+
 QString UBFileSystemUtils::getFirstExistingFileFromList(const QString& path, const QStringList& files)
 {
 

src/frameworks/UBFileSystemUtils.h

@@ -18,6 +18,8 @@
 
 #include <QtCore>
 
+#include "core/UB.h"
+
 class QuaZipFile;
 class UBProcessingProgressListener;
 
@@ -57,6 +59,10 @@ class UBFileSystemUtils
 
         static QString fileExtensionFromMimeType(const QString& pMimeType);
 
+        static UBMimeType::Enum mimeTypeFromString(const QString& typeString);
+
+        static UBMimeType::Enum mimeTypeFromUrl(const QUrl& url);
+
         static QString normalizeFilePath(const QString& pFilePath);
 
         static QString extension(const QString& filaname);

src/gui/UBFeaturesWidget.cpp

@@ -359,6 +359,11 @@ void UBFeaturesWidget::onDisplayMetadata( QMap<QString,QString> metadata )
 {
     QString previewImageUrl;
 
+    switch (UBFileSystemUtils::mimeTypeFromUrl(QUrl(metadata["Url"])))
+    {
+    case UBMimeType::RasterImage:
+    case UBMimeType::VectorImage:
+        {
             previewImageUrl = ":images/libpalette/loading.png";
 
             if (!imageGatherer)
@@ -368,6 +373,20 @@ void UBFeaturesWidget::onDisplayMetadata( QMap<QString,QString> metadata )
 
             // We send here the request and store its reply in order to be able to cancel it if needed
             imageGatherer->get(QUrl(metadata["Url"]), QPoint(0,0), QSize(), false);
+        } break;
+    case UBMimeType::Audio:
+        {
+           previewImageUrl = ":images/libpalette/soundIcon.svg";
+        }break;
+    case UBMimeType::Video:
+        {
+            previewImageUrl = ":images/libpalette/movieIcon.svg";
+        }break;
+    case UBMimeType::Flash:
+        {
+            previewImageUrl = ":images/libpalette/FlashIcon.svg";
+        }break;
+    }
 
     UBFeature feature( QString(), QPixmap(previewImageUrl), QString(), metadata["Url"], FEATURE_ITEM );
     feature.setMetadata( metadata );
@@ -380,6 +399,12 @@ void UBFeaturesWidget::onDisplayMetadata( QMap<QString,QString> metadata )
 
 void UBFeaturesWidget::onPreviewLoaded(int id, bool pSuccess, QUrl sourceUrl, QString pContentTypeHeader, QByteArray pData, QPointF pPos, QSize pSize, bool isBackground)
 {
+    Q_UNUSED(id);
+    Q_UNUSED(pSuccess);
+    Q_UNUSED(isBackground);
+    Q_UNUSED(pSize);
+    Q_UNUSED(pPos);
+
     QImage img;
     img.loadFromData(pData);
     QPixmap pix = QPixmap::fromImage(img);
@@ -776,6 +801,7 @@ void UBFeatureProperties::setOrigPixmap(QPixmap &pix)
 void UBFeatureProperties::setThumbnail(QPixmap &pix)
 {  
     mpThumbnail->setPixmap(pix.scaledToWidth(THUMBNAIL_WIDTH));
+    adaptSize();
 }
 
 void UBFeatureProperties::adaptSize()