From f1f5170c062c4a96dd986116631a6d8e1fb1d87f Mon Sep 17 00:00:00 2001
From: Zeno Albisser <zeno.albisser@digia.com>
Date: Tue, 18 Jun 2013 17:15:00 +0200
Subject: Disable the back/forward buttons when appropriate.

---
 examples/widgets/widgetwindow.cpp | 6 ++++--
 examples/widgets/widgetwindow.h   | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

(limited to 'examples/widgets')

diff --git a/examples/widgets/widgetwindow.cpp b/examples/widgets/widgetwindow.cpp
index 589ef13c3..a28a6f130 100644
--- a/examples/widgets/widgetwindow.cpp
+++ b/examples/widgets/widgetwindow.cpp
@@ -63,11 +63,11 @@ WidgetWindow::WidgetWindow()
     QHBoxLayout* addressBar = new QHBoxLayout;
     addressBar->setSpacing(margin); // Bigger buttons, less space between them
 
-    QToolButton* backButton = new QToolButton;
+    backButton = new QToolButton;
     backButton->setIcon(QIcon::fromTheme("go-previous"));
     addressBar->addWidget(backButton);
 
-    QToolButton* forwardButton = new QToolButton;
+    forwardButton = new QToolButton;
     forwardButton->setIcon(QIcon::fromTheme("go-next"));
     addressBar->addWidget(forwardButton);
 
@@ -117,5 +117,7 @@ void WidgetWindow::loadStarted()
 void WidgetWindow::loadFinished(bool success)
 {
     Q_UNUSED(success);
+    forwardButton->setEnabled(m_webView->canGoForward());
+    backButton->setEnabled(m_webView->canGoBack());
     reloadButton->setIcon(QIcon::fromTheme("view-refresh"));
 }
diff --git a/examples/widgets/widgetwindow.h b/examples/widgets/widgetwindow.h
index 5273d4255..863e8a73f 100644
--- a/examples/widgets/widgetwindow.h
+++ b/examples/widgets/widgetwindow.h
@@ -62,6 +62,8 @@ private Q_SLOTS:
 private:
     QScopedPointer<QWebContentsView> m_webView;
     QLineEdit* addressLineEdit;
+    QToolButton* forwardButton;
+    QToolButton* backButton;
     QToolButton* reloadButton;
 };
 
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