Add a checkable push button to the search bar that allows to highlight

a specific string in a website. It uses the newly added API that comes
with Qt 4.6 / WebKit trunk.

src/searchbanner.ui

@@ -43,9 +43,18 @@
     </spacer>
    </item>
    <item>
-    <widget class="QLabel" name="searchInfo">
+    <widget class="QLabel" name="searchInfo"/>
+   </item>
+   <item>
+    <widget class="QToolButton" name="highlightAllButton">
      <property name="text">
-      <string notr="true">TextLabel</string>
+      <string>Highlight All</string>
+     </property>
+     <property name="visible">
+      <bool>false</bool>
+     </property>
+     <property name="checkable">
+      <bool>true</bool>
      </property>
     </widget>
    </item>

src/webviewsearch.cpp

@@ -32,6 +32,13 @@ WebViewSearch::WebViewSearch(QWebView *webView, QWidget *parent)
     : SearchBar(parent)
 {
     setSearchObject(webView);
+#if QT_VERSION >= 0x040600 || defined(WEBKIT_TRUNK)
+    ui.highlightAllButton->setVisible(true);
+    connect(ui.highlightAllButton, SIGNAL(toggled(bool)),
+            this, SLOT(highlightAll()));
+    connect(ui.searchLineEdit, SIGNAL(textEdited(const QString &)),
+            this, SLOT(highlightAll()));
+#endif
 }
 
 void WebViewSearch::findNext()
@@ -44,17 +51,32 @@ void WebViewSearch::findPrevious()
     find(QWebPage::FindBackward | QWebPage::FindWrapsAroundDocument);
 }
 
+#if QT_VERSION >= 0x040600 || defined(WEBKIT_TRUNK)
+void WebViewSearch::highlightAll()
+{
+    webView()->findText(QString(), QWebPage::HighlightAllOccurrences);
+
+    if (ui.highlightAllButton->isChecked())
+        find(QWebPage::HighlightAllOccurrences);
+}
+#endif
+
 void WebViewSearch::find(QWebPage::FindFlags flags)
 {
     QString searchString = ui.searchLineEdit->text();
     if (!searchObject() || searchString.isEmpty())
         return;
     QString infoString;
-    if (!((QWebView*)searchObject())->findText(searchString, flags))
+    if (!webView()->findText(searchString, flags))
         infoString = tr("Not Found");
     ui.searchInfo->setText(infoString);
 }
 
+QWebView *WebViewSearch::webView() const
+{
+    return qobject_cast<QWebView*>(searchObject());
+}
+
 WebViewWithSearch::WebViewWithSearch(WebView *webView, QWidget *parent)
     : QWidget(parent)
     , m_webView(webView)

src/webviewsearch.h

@@ -38,9 +38,13 @@ class WebViewSearch : public SearchBar
 public slots:
     void findNext();
     void findPrevious();
+#if QT_VERSION >= 0x040600 || defined(WEBKIT_TRUNK)
+    void highlightAll();
+#endif
 
 private:
     void find(QWebPage::FindFlags flags);
+    QWebView *webView() const;
 };
 
 #include "webview.h"