On Wed, Apr 2, 2014 at 10:05 PM, Joshua Joseph <[email protected]> wrote:

>
>
> See the attached updated patch.
>
> Here is the patch.
From 0a5b483c81fd5820bfc3263750c2a21083338559 Mon Sep 17 00:00:00 2001
From: "Joseph W. Joshua" <[email protected]>
Date: Wed, 2 Apr 2014 21:59:36 +0300
Subject: [PATCH] Add "Check for updates" Feature

This patch adds a check for updates feature.

On windows and mac, it connects to http://subsurface.hohndel.org/updatecheck.html
to check for any new versions. It then prompts the user with a download link if
an update is available

Signed-off-by: Joseph W. Joshua <[email protected]>
---
 qt-ui/mainwindow.cpp    |  7 +++++
 qt-ui/mainwindow.h      |  1 +
 qt-ui/mainwindow.ui     |  6 +++++
 qt-ui/updatemanager.cpp | 69 +++++++++++++++++++++++++++++++++++++++++++++++++
 qt-ui/updatemanager.h   | 21 +++++++++++++++
 subsurface.pro          |  6 +++--
 6 files changed, 108 insertions(+), 2 deletions(-)
 create mode 100644 qt-ui/updatemanager.cpp
 create mode 100644 qt-ui/updatemanager.h

diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index b632252..67c0ffb 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -37,6 +37,7 @@
 #include "diveplanner.h"
 #include "about.h"
 #include "worldmap-save.h"
+#include "updatemanager.h"
 #ifndef NO_PRINTING
 #include "printdialog.h"
 #endif
@@ -575,6 +576,12 @@ void MainWindow::on_actionAboutSubsurface_triggered()
 	dlg.exec();
 }
 
+void MainWindow::on_action_Check_for_Updates_triggered()
+{
+	UpdateManager *updater = new UpdateManager(this);
+	updater->checkForUpdates();
+}
+
 void MainWindow::on_actionUserManual_triggered()
 {
 #ifndef NO_USERMANUAL
diff --git a/qt-ui/mainwindow.h b/qt-ui/mainwindow.h
index a0c5be3..f18bd90 100644
--- a/qt-ui/mainwindow.h
+++ b/qt-ui/mainwindow.h
@@ -121,6 +121,7 @@ slots:
 	void on_actionAboutSubsurface_triggered();
 	void on_actionUserManual_triggered();
 	void on_actionDivePlanner_triggered();
+	void on_action_Check_for_Updates_triggered();
 
 	void current_dive_changed(int divenr);
 	void initialUiSetup();
diff --git a/qt-ui/mainwindow.ui b/qt-ui/mainwindow.ui
index 2bf2496..1eadec7 100644
--- a/qt-ui/mainwindow.ui
+++ b/qt-ui/mainwindow.ui
@@ -601,6 +601,7 @@
      <string>&amp;Help</string>
     </property>
     <addaction name="actionAboutSubsurface"/>
+    <addaction name="action_Check_for_Updates"/>
     <addaction name="actionUserManual"/>
    </widget>
    <widget class="QMenu" name="menuImport">
@@ -910,6 +911,11 @@
     <bool>false</bool>
    </property>
   </action>
+  <action name="action_Check_for_Updates">
+   <property name="text">
+    <string>&amp;Check for Updates</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
diff --git a/qt-ui/updatemanager.cpp b/qt-ui/updatemanager.cpp
new file mode 100644
index 0000000..667f872
--- /dev/null
+++ b/qt-ui/updatemanager.cpp
@@ -0,0 +1,69 @@
+#include "updatemanager.h"
+#include <QtNetwork>
+#include <QMessageBox>
+#include "subsurfacewebservices.h"
+#include "ssrf-version.h"
+
+UpdateManager::UpdateManager(QObject *parent) :
+    QObject(parent)
+{
+    manager = SubsurfaceWebServices::manager();
+    connect (manager, SIGNAL(finished(QNetworkReply*)), SLOT(requestReceived(QNetworkReply*)));
+}
+
+void UpdateManager::checkForUpdates()
+{
+    QString os;
+
+#if defined(Q_OS_WIN)
+    os = "win";
+#elif defined(Q_OS_MAC)
+    os = "osx";
+#else
+    os = "unknown";
+#endif
+
+    QString version = VERSION_STRING;
+    QString url = QString("http://subsurface.hohndel.org/updatecheck.html?os=%1&ver=%2";).arg(os, version);
+    manager->get(QNetworkRequest(QUrl(url)));
+}
+
+void UpdateManager::requestReceived(QNetworkReply *reply)
+{
+    QMessageBox msgbox;
+    QString msgTitle = tr("Check for updates.");
+    QString msgText = tr("<h3>Subsurface was unable to check for updates.</h3>");
+
+
+    if (reply->error() != QNetworkReply::NoError) {
+        //Network Error
+        msgText = msgText + tr("<br/><b>The following error occurred:</b><br/>") + reply->errorString()
+                + tr("<br/><br/><b>Please check your internet connection.</b>");
+    } else {
+        //No network error
+        QString response(reply->readAll());
+        QString responseBody = response.split("\"").at(1);
+
+        msgbox.setIcon(QMessageBox::Information);
+
+        if (responseBody == "OK") {
+            msgText = tr("You are using the latest version of subsurface.");
+        } else if (responseBody.startsWith("http")) {
+            msgText = tr("A new version of subsurface is available.<br/>Click on:<br/><a href=\"%1\">%1</a><br/> to download it.")
+                    .arg(responseBody);
+        } else if (responseBody.startsWith("Latest version")) {
+            msgText = tr("<b>A new version of subsurface is available.</b><br/><br/>%1")
+                    .arg(responseBody);
+        } else {
+            msgText = tr("There was an error while trying to check for updates.<br/><br/>%1").arg(responseBody);
+            msgbox.setIcon(QMessageBox::Warning);
+        }
+    }
+
+    msgbox.setWindowTitle(msgTitle);
+    msgbox.setText(msgText);
+    msgbox.setTextFormat(Qt::RichText);
+    msgbox.exec();
+
+    manager->deleteLater();
+}
diff --git a/qt-ui/updatemanager.h b/qt-ui/updatemanager.h
new file mode 100644
index 0000000..18b47cf
--- /dev/null
+++ b/qt-ui/updatemanager.h
@@ -0,0 +1,21 @@
+#ifndef UPDATEMANAGER_H
+#define UPDATEMANAGER_H
+
+#include <QObject>
+
+class QNetworkAccessManager;
+class QNetworkReply;
+
+class UpdateManager : public QObject
+{
+	Q_OBJECT
+public:
+	explicit UpdateManager(QObject *parent = 0);
+	void checkForUpdates();
+private:
+	QNetworkAccessManager *manager;
+public slots:
+	void requestReceived(QNetworkReply* reply);
+};
+
+#endif // UPDATEMANAGER_H
diff --git a/subsurface.pro b/subsurface.pro
index 3944da0..6d13c1d 100644
--- a/subsurface.pro
+++ b/subsurface.pro
@@ -76,7 +76,8 @@ HEADERS = \
 	qt-ui/profile/diveprofileitem.h \
 	qt-ui/profile/diveeventitem.h \
 	qt-ui/profile/divetooltipitem.h \
-	qt-ui/profile/ruleritem.h
+	qt-ui/profile/ruleritem.h \
+	qt-ui/updatemanager.h
 
 android: HEADERS -= \
 	qt-ui/usermanual.h \
@@ -148,7 +149,8 @@ SOURCES =  \
 	qt-ui/profile/diveprofileitem.cpp \
 	qt-ui/profile/diveeventitem.cpp \
 	qt-ui/profile/divetooltipitem.cpp \
-	qt-ui/profile/ruleritem.cpp
+	qt-ui/profile/ruleritem.cpp \
+	qt-ui/updatemanager.cpp
 
 android: SOURCES += android.cpp
 else: linux*: SOURCES += linux.c
-- 
1.9.1

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