[UrlLoading] Make sure to correctly load one-word hosts without dot

One-word hosts without the dot may be valid url. So let's try to load
it first before using a websearch.

Closes #1317

src/lib/webkit/loadrequest.cpp

@@ -34,7 +34,7 @@ LoadRequest::LoadRequest(const LoadRequest &other)
 LoadRequest::LoadRequest(const QUrl &url)
     : m_operation(GetOperation)
 {
-    m_request.setUrl(url);
+    setUrl(url);
 }
 
 LoadRequest::LoadRequest(const QNetworkRequest &req, LoadRequest::Operation op, const QByteArray &data)
@@ -57,16 +57,6 @@ bool LoadRequest::isEmpty() const
     return m_request.url().isEmpty();
 }
 
-void LoadRequest::load(QWebView* view) const
-{
-    if (m_operation == GetOperation) {
-        view->load(m_request);
-    }
-    else {
-        view->load(m_request, QNetworkAccessManager::PostOperation, m_data);
-    }
-}
-
 QUrl LoadRequest::url() const
 {
     return m_request.url();

src/lib/webkit/loadrequest.h

@@ -40,7 +40,6 @@ public:
     LoadRequest &operator=(const LoadRequest &other);
 
     bool isEmpty() const;
-    void load(QWebView* view) const;
 
     QUrl url() const;
     void setUrl(const QUrl &url);

src/lib/webkit/webpage.cpp

@@ -37,6 +37,7 @@
 #include "useragentmanager.h"
 #include "delayedfilewatcher.h"
 #include "recoverywidget.h"
+#include "searchenginesmanager.h"
 #include "html5permissions/html5permissionsmanager.h"
 #include "schemehandlers/fileschemehandler.h"
 #include "javascript/externaljsobject.h"
@@ -462,6 +463,16 @@ void WebPage::dbQuotaExceeded(QWebFrame* frame)
     frame->securityOrigin().setDatabaseQuota(oldQuota * 2);
 }
 
+void WebPage::doWebSearch(const QString &text)
+{
+    WebView* webView = qobject_cast<WebView*>(view());
+
+    if (webView) {
+        const LoadRequest searchRequest = mApp->searchEnginesManager()->searchResult(text);
+        webView->load(searchRequest);
+    }
+}
+
 #ifdef USE_QTWEBKIT_2_2
 void WebPage::appCacheQuotaExceeded(QWebSecurityOrigin* origin, quint64 originalQuota)
 {
@@ -753,6 +764,12 @@ bool WebPage::extension(Extension extension, const ExtensionOption* option, Exte
             errorString = tr("Server closed the connection");
             break;
         case QNetworkReply::HostNotFoundError:
+            // If a one-word host was not find, search for the text instead
+            // It needs to be async to correctly refresh loading state
+            if (!exOption->url.host().isEmpty() && !exOption->url.host().contains(QL1C('.'))) {
+                QMetaObject::invokeMethod(this, "doWebSearch", Qt::QueuedConnection, Q_ARG(QString, exOption->url.host()));
+                return false;
+            }
             errorString = tr("Server not found");
             break;
         case QNetworkReply::TimeoutError:

src/lib/webkit/webpage.h

@@ -105,6 +105,7 @@ private slots:
     void windowCloseRequested();
 
     void dbQuotaExceeded(QWebFrame* frame);
+    void doWebSearch(const QString &text);
 
 #ifdef USE_QTWEBKIT_2_2
     void appCacheQuotaExceeded(QWebSecurityOrigin* origin, quint64 originalQuota);

src/lib/webkit/webview.cpp

@@ -192,14 +192,24 @@ void WebView::load(const LoadRequest &request)
     }
 
     if (reqUrl.isEmpty() || isUrlValid(reqUrl)) {
-        request.load(this);
-        m_aboutToLoadUrl = reqUrl;
+        loadRequest(request);
+        return;
+    }
+
+    // Make sure to correctly load hosts like localhost (eg. without the dot)
+    if (!reqUrl.isEmpty() &&
+        reqUrl.scheme().isEmpty() &&
+        !reqUrl.path().contains(QL1C(' ')) &&
+        !reqUrl.path().contains(QL1C('.'))
+       ) {
+        LoadRequest req = request;
+        req.setUrl(QUrl(QSL("http://") + reqUrl.path()));
+        loadRequest(req);
         return;
     }
 
     const LoadRequest searchRequest = mApp->searchEnginesManager()->searchResult(reqUrl.toString());
-    m_aboutToLoadUrl = searchRequest.url();
-    searchRequest.load(this);
+    loadRequest(searchRequest);
 }
 
 bool WebView::loadingError() const
@@ -1483,6 +1493,16 @@ void WebView::resizeEvent(QResizeEvent* event)
     emit viewportResized(page()->viewportSize());
 }
 
+void WebView::loadRequest(const LoadRequest &req)
+{
+    m_aboutToLoadUrl = req.url();
+
+    if (req.operation() == LoadRequest::GetOperation)
+        QWebView::load(req.networkRequest());
+    else
+        QWebView::load(req.networkRequest(), QNetworkAccessManager::PostOperation, req.data());
+}
+
 bool WebView::eventFilter(QObject* obj, QEvent* event)
 {
     if (s_forceContextMenuOnMouseRelease && obj == this && event->type() == QEvent::ContextMenu) {

src/lib/webkit/webview.h

@@ -158,6 +158,7 @@ protected:
     void keyReleaseEvent(QKeyEvent* event);
     void resizeEvent(QResizeEvent* event);
 
+    void loadRequest(const LoadRequest &req);
     void applyZoom();
     QUrl lastUrl();