Disconnect from facebook manually.

Added a button to disconnect from facebook.
This clears the webview cookies so it correctly
disconnects us from facebook, and clears the
access token.

Signed-off-by: Tomaz Canabrava <tomaz.canabrava@intel.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/preferences.cpp

@@ -7,8 +7,15 @@
 #include <QSortFilterProxyModel>
 #include <QShortcut>
 #include <QNetworkProxy>
+#include <QNetworkCookieJar>
 #include <QWebView>
 
+static QString facebookConnectUrl =
+		"https://www.facebook.com/dialog/oauth?"
+		"client_id=427722490709000"
+		"&redirect_uri=http://www.facebook.com/connect/login_success.html"
+		"&response_type=token";
+
 PreferencesDialog *PreferencesDialog::instance()
 {
 	static PreferencesDialog *dialog = new PreferencesDialog(MainWindow::instance());
@@ -28,21 +35,20 @@ PreferencesDialog::PreferencesDialog(QWidget *parent, Qt::WindowFlags f) : QDial
 	ui.proxyType->setCurrentIndex(-1);
 
 	// Facebook stuff:
-	QUrl urlLogin("https://www.facebook.com/dialog/oauth?"
-		"client_id=427722490709000"
-		"&redirect_uri=http://www.facebook.com/connect/login_success.html"
-		"&response_type=token");
 
 	QSettings settings;
 	settings.beginGroup("WebApps");
 	settings.beginGroup("Facebook");
 	if(settings.allKeys().contains("ConnectToken")){
 		ui.facebookWebView->setHtml("You are connected on Facebook, yey.");
+		ui.btnDisconnectFacebook->show();
 	} else {
-		ui.facebookWebView->setUrl(urlLogin);
+		ui.facebookWebView->setUrl(QUrl(facebookConnectUrl));
+		ui.btnDisconnectFacebook->hide();
 	}
 
 	connect(ui.facebookWebView, &QWebView::urlChanged, this, &PreferencesDialog::facebookLoginResponse);
+	connect(ui.btnDisconnectFacebook, &QPushButton::clicked, this, &PreferencesDialog::facebookDisconnect);
 
 	connect(ui.proxyType, SIGNAL(currentIndexChanged(int)), this, SLOT(proxyType_changed(int)));
 	connect(ui.buttonBox, SIGNAL(clicked(QAbstractButton *)), this, SLOT(buttonClicked(QAbstractButton *)));
@@ -70,9 +76,22 @@ void PreferencesDialog::facebookLoginResponse(const QUrl &url)
 		settings.beginGroup("Facebook");
 		settings.setValue("ConnectToken", securityToken);
 		ui.facebookWebView->setHtml("We need a better 'you re connected' page. but, YEY. ");
+		ui.btnDisconnectFacebook->show();
 	}
 }
 
+void PreferencesDialog::facebookDisconnect()
+{
+		QSettings settings;
+		settings.beginGroup("WebApps");
+		settings.beginGroup("Facebook");
+		settings.remove("ConnectToken");
+		ui.facebookWebView->page()->networkAccessManager()->setCookieJar(new QNetworkCookieJar());
+		ui.facebookWebView->setUrl(QUrl(facebookConnectUrl));
+		ui.btnDisconnectFacebook->hide();
+}
+
+
 #define DANGER_GF (gf > 100) ? "* { color: red; }" : ""
 void PreferencesDialog::gflowChanged(int gf)
 {
@@ -168,6 +187,14 @@ void PreferencesDialog::setUiFromPrefs()
 	ui.proxyPassword->setText(prefs.proxy_pass);
 	ui.proxyType->setCurrentIndex(ui.proxyType->findData(prefs.proxy_type));
 	ui.btnUseDefaultFile->setChecked(prefs.use_default_file);
+
+	s.beginGroup("WebApps");
+	s.beginGroup("Facebook");
+	if(s.allKeys().contains("ConnectToken")){
+		ui.btnDisconnectFacebook->show();
+	} else {
+		ui.btnDisconnectFacebook->hide();
+	}
 }
 
 void PreferencesDialog::restorePrefs()

qt-ui/preferences.h

@@ -31,6 +31,8 @@ slots:
 	void proxyType_changed(int idx);
 	void on_btnUseDefaultFile_toggled(bool toggle);
 	void facebookLoginResponse(const QUrl& url);
+	void facebookDisconnect();
+
 private:
 	explicit PreferencesDialog(QWidget *parent = 0, Qt::WindowFlags f = 0);
 	void setUiFromPrefs();

qt-ui/preferences.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>562</width>
+    <width>924</width>
     <height>718</height>
    </rect>
   </property>
@@ -972,7 +972,7 @@
         </layout>
        </widget>
        <widget class="QWidget" name="page_6">
-        <layout class="QHBoxLayout" name="horizontalLayout_10">
+        <layout class="QVBoxLayout" name="verticalLayout_8">
          <item>
           <widget class="QWebView" name="facebookWebView">
            <property name="url">
@@ -982,6 +982,13 @@
            </property>
           </widget>
          </item>
+         <item>
+          <widget class="QPushButton" name="btnDisconnectFacebook">
+           <property name="text">
+            <string>Disconnect from facebook</string>
+           </property>
+          </widget>
+         </item>
         </layout>
        </widget>
       </widget>