Fix missing natively supported mime types for help viewer.

Task-number: QTBUG-9651
Reviewed-by: ck

3 files changed, 61 insertions, 19 deletions

diff --git a/tools/assistant/tools/assistant/helpviewer.cpp b/tools/assistant/tools/assistant/helpviewer.cpp
index 9b06400bd9..0c51a02818 100644
--- a/tools/assistant/tools/assistant/helpviewer.cpp
+++ b/tools/assistant/tools/assistant/helpviewer.cpp
@@ -63,6 +63,45 @@ QString AbstractHelpViewer::PageNotFoundMessage =
     "align=\"center\"><br><br><h1>The page could not be found</h1><br><h3>'%1'"
     "</h3></div>");
 
+struct ExtensionMap {
+    const char *extension;
+    const char *mimeType;
+} extensionMap[] = {
+    { ".bmp", "image/bmp" },
+    { ".css", "text/css" },
+    { ".gif", "image/gif" },
+    { ".html", "text/html" },
+    { ".htm", "text/html" },
+    { ".ico", "image/x-icon" },
+    { ".jpeg", "image/jpeg" },
+    { ".jpg", "image/jpeg" },
+    { ".js", "application/x-javascript" },
+    { ".mng", "video/x-mng" },
+    { ".pbm", "image/x-portable-bitmap" },
+    { ".pgm", "image/x-portable-graymap" },
+    { ".pdf", "application/pdf" },
+    { ".png", "image/png" },
+    { ".ppm", "image/x-portable-pixmap" },
+    { ".rss", "application/rss+xml" },
+    { ".svg", "image/svg+xml" },
+    { ".svgz", "image/svg+xml" },
+    { ".text", "text/plain" },
+    { ".tif", "image/tiff" },
+    { ".tiff", "image/tiff" },
+    { ".txt", "text/plain" },
+    { ".xbm", "image/x-xbitmap" },
+    { ".xml", "text/xml" },
+    { ".xpm", "image/x-xpm" },
+    { ".xsl", "text/xsl" },
+    { ".xhtml", "application/xhtml+xml" },
+    { ".wml", "text/vnd.wap.wml" },
+    { ".wmlc", "application/vnd.wap.wmlc" },
+    { "about:blank", 0 },
+    { 0, 0 }
+};
+
+// -- AbstractHelpViewer
+
 AbstractHelpViewer::AbstractHelpViewer()
 {
 }
@@ -86,9 +125,22 @@ bool AbstractHelpViewer::isLocalUrl(const QUrl &url)
 bool AbstractHelpViewer::canOpenPage(const QString &url)
 {
     TRACE_OBJ
-    return url.endsWith(QLatin1String(".html"), Qt::CaseInsensitive)
-        || url.endsWith(QLatin1String(".htm"), Qt::CaseInsensitive)
-        || url == QLatin1String("about:blank");
+    return !mimeFromUrl(url).isEmpty();
+}
+
+QString AbstractHelpViewer::mimeFromUrl(const QString &url)
+{
+    TRACE_OBJ
+    const int index = url.lastIndexOf(QLatin1Char('.'));
+    const QByteArray &ext = url.mid(index).toUtf8().toLower();
+
+    const ExtensionMap *e = extensionMap;
+    while (e->extension) {
+        if (ext == e->extension)
+            return QLatin1String(e->mimeType);
+        ++e;
+    }
+    return QLatin1String("");
 }
 
 bool AbstractHelpViewer::launchWithExternalApp(const QUrl &url)
diff --git a/tools/assistant/tools/assistant/helpviewer.h b/tools/assistant/tools/assistant/helpviewer.h
index 9e8f5f45f0..246700f7e0 100644
--- a/tools/assistant/tools/assistant/helpviewer.h
+++ b/tools/assistant/tools/assistant/helpviewer.h
@@ -70,6 +70,7 @@ public:
 
     static bool isLocalUrl(const QUrl &url);
     static bool canOpenPage(const QString &url);
+    static QString mimeFromUrl(const QString &url);
     static bool launchWithExternalApp(const QUrl &url);
 };
 
diff --git a/tools/assistant/tools/assistant/helpviewer_qwv.cpp b/tools/assistant/tools/assistant/helpviewer_qwv.cpp
index 582d013b2e..18046a716f 100644
--- a/tools/assistant/tools/assistant/helpviewer_qwv.cpp
+++ b/tools/assistant/tools/assistant/helpviewer_qwv.cpp
@@ -129,26 +129,15 @@ QNetworkReply *HelpNetworkAccessManager::createRequest(Operation /*op*/,
     const QNetworkRequest &request, QIODevice* /*outgoingData*/)
 {
     TRACE_OBJ
-    const QUrl& url = request.url();
-    QString mimeType = url.toString();
-    if (mimeType.endsWith(QLatin1String(".svg"))
-        || mimeType.endsWith(QLatin1String(".svgz"))) {
-            mimeType = QLatin1String("image/svg+xml");
-    } else if (mimeType.endsWith(QLatin1String(".css"))) {
-        mimeType = QLatin1String("text/css");
-    } else if (mimeType.endsWith(QLatin1String(".js"))) {
-        mimeType = QLatin1String("text/javascript");
-    } else if (mimeType.endsWith(QLatin1String(".txt"))) {
-        mimeType = QLatin1String("text/plain");
-    } else {
-        mimeType = QLatin1String("text/html");
-    }
-
+    const QUrl &url = request.url();
+    const QString &mimeType = AbstractHelpViewer::mimeFromUrl(url.toString());
+    
     HelpEngineWrapper &helpEngine = HelpEngineWrapper::instance();
     const QByteArray &data = helpEngine.findFile(url).isValid()
         ? helpEngine.fileData(url)
         : AbstractHelpViewer::PageNotFoundMessage.arg(url.toString()).toUtf8();
-    return new HelpNetworkReply(request, data, mimeType);
+    return new HelpNetworkReply(request, data, mimeType.isEmpty()
+        ? QLatin1String("application/octet-stream") : mimeType);
 }
 
 class HelpPage : public QWebPage