preferences: use a json file to store preferences

- Add the storing and loading of a json file for
  storing the clients user preferences starting
  with the default selected account

Change-Id: If0afcf537731a951ef3be58881ec01ad8b14a347
Tuleap: #974

ContactsViewModel.cpp

 /***************************************************************************
  * Copyright (C) 2016 by Savoir-faire Linux                                *
  * Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+ * Author: Traczyk Andreas <andreas.traczyk@savoirfairelinux.com>          *
  *                                                                         *
  * This program is free software; you can redistribute it and/or modify    *
  * it under the terms of the GNU General Public License as published by    *
@@ -15,6 +16,7 @@
  * You should have received a copy of the GNU General Public License       *
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
  **************************************************************************/
+
 #include "pch.h"
 #include "ContactsViewModel.h"
 
@@ -31,7 +33,7 @@ ContactsViewModel::ContactsViewModel()
 }
 
 Contact^
-RingClientUWP::ViewModel::ContactsViewModel::findContactByName(String ^ name)
+ContactsViewModel::findContactByName(String ^ name)
 {
     for each (Contact^ contact in contactsList_)
         if (contact->name_ == name)
@@ -41,7 +43,7 @@ RingClientUWP::ViewModel::ContactsViewModel::findContactByName(String ^ name)
 }
 
 Contact^
-RingClientUWP::ViewModel::ContactsViewModel::addNewContact(String^ name, String^ ringId)
+ContactsViewModel::addNewContact(String^ name, String^ ringId)
 {
     if (contactsList_ && !findContactByName(name)) {
         Contact^ contact = ref new Contact(name, ringId);

ContactsViewModel.h

-#pragma once
-/**************************************************************************
+/***************************************************************************
  * Copyright (C) 2016 by Savoir-faire Linux                                *
  * Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+ * Author: Traczyk Andreas <andreas.traczyk@savoirfairelinux.com>          *
  *                                                                         *
  * This program is free software; you can redistribute it and/or modify    *
  * it under the terms of the GNU General Public License as published by    *
@@ -16,8 +16,11 @@
  * You should have received a copy of the GNU General Public License       *
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
  **************************************************************************/
-using namespace Concurrency;
+
+#pragma once
+
 using namespace Platform::Collections;
+using namespace Concurrency;
 
 namespace RingClientUWP
 {

RingD.cpp

 /***************************************************************************
 * Copyright (C) 2016 by Savoir-faire Linux                                *
-* Author: Jger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+* Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
 * Author: Traczyk Andreas <traczyk.andreas@savoirfairelinux.com>          *
 *                                                                         *
 * This program is free software; you can redistribute it and/or modify    *
@@ -43,7 +43,7 @@ debugOutputWrapper(const std::string& str)
 }
 
 void
-reloadAccountList()
+RingClientUWP::RingD::reloadAccountList()
 {
     RingClientUWP::ViewModel::AccountsViewModel::instance->clearAccountList();
     std::vector<std::string> accountList = DRing::getAccountList();
@@ -58,6 +58,8 @@ reloadAccountList()
             ringID,                                                             //ringid
             accountDetails.find(ring::Conf::CONFIG_ACCOUNT_TYPE)->second);      //type
     }
+    // load user preferences
+    Configuration::UserPreferences::instance->load();
 }
 
 void
@@ -119,7 +121,10 @@ RingClientUWP::RingD::startDaemon()
             }),
             DRing::exportable_callback<DRing::ConfigurationSignal::AccountsChanged>([this]()
             {
+                CoreApplication::MainView->CoreWindow->Dispatcher->RunAsync(CoreDispatcherPriority::Normal,
+                    ref new DispatchedHandler([=]() {
                     reloadAccountList();
+                }));
             })
         };
 
@@ -155,10 +160,12 @@ RingClientUWP::RingD::startDaemon()
                 ringAccountDetails.insert(std::make_pair(ring::Conf::CONFIG_ACCOUNT_TYPE,"RING"));
                 DRing::addAccount(ringAccountDetails);
             }
+            else {
                 CoreApplication::MainView->CoreWindow->Dispatcher->RunAsync(CoreDispatcherPriority::Normal,
                     ref new DispatchedHandler([=]() {
                     reloadAccountList();
                 }));
+            }
             while (true) {
                 DRing::pollEvents();
                 Sleep(1000);

RingD.h

 /***************************************************************************
 * Copyright (C) 2016 by Savoir-faire Linux                                *
-* Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+* Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
 *                                                                         *
 * This program is free software; you can redistribute it and/or modify    *
 * it under the terms of the GNU General Public License as published by    *
@@ -52,6 +52,7 @@ public:
 internal:
     /* functions */
     void startDaemon();
+    void reloadAccountList();
 
     /* TODO : move members */
     bool hasConfig;

RingDebug.cpp

 /***************************************************************************
  * Copyright (C) 2016 by Savoir-faire Linux                                *
  * Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+ * Author: Traczyk Andreas <andreas.traczyk@savoirfairelinux.com>          *
  *                                                                         *
  * This program is free software; you can redistribute it and/or modify    *
  * it under the terms of the GNU General Public License as published by    *

SmartPanel.xaml.cpp

 /***************************************************************************
  * Copyright (C) 2016 by Savoir-faire Linux                                *
  * Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+ * Author: Traczyk Andreas <andreas.traczyk@savoirfairelinux.com>          *
  *                                                                         *
  * This program is free software; you can redistribute it and/or modify    *
  * it under the terms of the GNU General Public License as published by    *
@@ -37,6 +38,10 @@ SmartPanel::SmartPanel()
 {
     InitializeComponent();
 
+    Configuration::UserPreferences::instance->selectIndex += ref new SelectIndex([this](int index) {
+        _accountsList_->SelectedIndex = index;
+    });
+
     _accountsList_->ItemsSource = AccountsViewModel::instance->accountsList;
     _smartList_->ItemsSource = ContactsViewModel::instance->contactsList;
 }
@@ -48,6 +53,8 @@ RingClientUWP::Views::SmartPanel::updatePageContent()
     if (!account)
         return;
 
+    Configuration::UserPreferences::instance->PREF_ACCOUNT_INDEX = _accountsList_->SelectedIndex;
+    Configuration::UserPreferences::instance->save();
     _selectedAccountName_->Text = account->name_;
 }
 
@@ -108,22 +115,26 @@ void RingClientUWP::Views::SmartPanel::_shareMenuButton__Unchecked(Platform::Obj
     _shareMenuGrid_->Visibility = Windows::UI::Xaml::Visibility::Collapsed;
 }
 
+
 void RingClientUWP::Views::SmartPanel::_addAccountBtn__Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
 {
     _accountsMenuGrid_->Visibility = Windows::UI::Xaml::Visibility::Collapsed;
     _accountCreationMenuGrid_->Visibility = Windows::UI::Xaml::Visibility::Visible;
 }
 
+
 void RingClientUWP::Views::SmartPanel::_createAccountYes__Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
 {
 
 }
 
+
 void RingClientUWP::Views::SmartPanel::_createAccountNo__Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
 {
 
 }
 
+
 void RingClientUWP::Views::SmartPanel::_avatarWebcamCaptureBtn__Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
 {
     CameraCaptureUI^ cameraCaptureUI = ref new CameraCaptureUI();
@@ -153,6 +164,7 @@ void RingClientUWP::Views::SmartPanel::_avatarWebcamCaptureBtn__Click(Platform::
 
 }
 
+
 void
 SmartPanel::_smartList__SelectionChanged(Platform::Object^ sender, Windows::UI::Xaml::Controls::SelectionChangedEventArgs^ e)
 {

UserPreferences.cpp

+/***************************************************************************
+ * Copyright (C) 2016 by Savoir-faire Linux                                *
+ * Author: Jäger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+ * Author: Traczyk Andreas <andreas.traczyk@savoirfairelinux.com>          *
+ *                                                                         *
+ * This program is free software; you can redistribute it and/or modify    *
+ * it under the terms of the GNU General Public License as published by    *
+ * the Free Software Foundation; either version 3 of the License, or       *
+ * (at your option) any later version.                                     *
+ *                                                                         *
+ * This program is distributed in the hope that it will be useful,         *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
+ * GNU General Public License for more details.                            *
+ *                                                                         *
+ * You should have received a copy of the GNU General Public License       *
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
+ **************************************************************************/
+
+#include "pch.h"
+
+using namespace Windows::Data::Json;
+using namespace Windows::Storage;
+
+using namespace RingClientUWP;
+using namespace Platform;
+using namespace Configuration;
+
+void
+UserPreferences::save()
+{
+    StorageFolder^ localfolder = ApplicationData::Current->LocalFolder;
+    String^ preferencesFile = "preferences.json";
+
+    try {
+        create_task(localfolder->CreateFileAsync(preferencesFile
+            ,Windows::Storage::CreationCollisionOption::ReplaceExisting))
+            .then([&](StorageFile^ newFile){
+            try {
+                FileIO::WriteTextAsync(newFile,Stringify());
+            }
+            catch (Exception^ e) {
+                RingDebug::instance->print("Exception while writing to preferences file");
+            }
+        });
+    }
+    catch (Exception^ e) {
+        RingDebug::instance->print("Exception while opening preferences file");
+    }
+}
+
+void
+UserPreferences::load()
+{
+    String^ preferencesFile = "preferences.json";
+
+    Utils::fileExists(ApplicationData::Current->LocalFolder,
+        preferencesFile)
+        .then([this,preferencesFile](bool contacts_file_exists)
+    {
+        if (contacts_file_exists) {
+            RingDebug::instance->print("opened preferences file");
+            try {
+                create_task(ApplicationData::Current->LocalFolder->GetFileAsync(preferencesFile))
+                    .then([this](StorageFile^ file)
+                {
+                    create_task(FileIO::ReadTextAsync(file))
+                        .then([this](String^ fileContents){
+                        RingDebug::instance->print("reading preferences file");
+                        if (fileContents != nullptr) {
+                            Destringify(fileContents);
+                            // select account index after loading preferences
+                            selectIndex(PREF_ACCOUNT_INDEX);
+                        }
+                    });
+                });
+            }
+            catch (Exception^ e) {
+                RingDebug::instance->print("Exception while opening preferences file");
+            }
+        }
+        else {
+            selectIndex(0);
+        }
+    });
+}
+
+String^
+UserPreferences::Stringify()
+{
+    JsonObject^ preferencesObject = ref new JsonObject();
+    preferencesObject->SetNamedValue("PREF_ACCOUNT_INDEX", JsonValue::CreateNumberValue(PREF_ACCOUNT_INDEX));
+    return preferencesObject->Stringify();
+}
+
+void
+UserPreferences::Destringify(String^ data)
+{
+    JsonObject^ jsonObject = JsonObject::Parse(data);
+    PREF_ACCOUNT_INDEX = static_cast<int>(jsonObject->GetNamedNumber("PREF_ACCOUNT_INDEX"));
+    JsonArray^ preferencesList = jsonObject->GetNamedArray("Account.index", ref new JsonArray());
+}
\ No newline at end of file

UserPreferences.h

+/***************************************************************************
+ * Copyright (C) 2016 by Savoir-faire Linux                                *
+ * Author: Jger Nicolas <nicolas.jager@savoirfairelinux.com>              *
+ * Author: Traczyk Andreas <andreas.traczyk@savoirfairelinux.com>          *
+ *                                                                         *
+ * This program is free software; you can redistribute it and/or modify    *
+ * it under the terms of the GNU General Public License as published by    *
+ * the Free Software Foundation; either version 3 of the License, or       *
+ * (at your option) any later version.                                     *
+ *                                                                         *
+ * This program is distributed in the hope that it will be useful,         *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
+ * GNU General Public License for more details.                            *
+ *                                                                         *
+ * You should have received a copy of the GNU General Public License       *
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
+ **************************************************************************/
+
+#pragma once
+
+namespace RingClientUWP
+{
+
+delegate void SelectIndex(int index);
+
+namespace Configuration
+{
+
+/* delegates */
+
+public ref class UserPreferences sealed
+{
+public:
+    /* singleton */
+    static property UserPreferences^ instance
+    {
+        UserPreferences^ get()
+        {
+            static UserPreferences^ instance_ = ref new UserPreferences();
+            return instance_;
+        }
+    }
+
+    /* properties */
+    property int        PREF_ACCOUNT_INDEX;
+
+    /* functions */
+    void                save();
+    void                load();
+    String^             Stringify();
+    void                Destringify(String^ data);
+
+internal:
+
+    /* events */
+    event SelectIndex^ selectIndex;
+
+private:
+    UserPreferences() { };
+
+};
+
+}
+}
\ No newline at end of file

pch.h

@@ -35,3 +35,4 @@
 #include "RingD.h"
 #include "RingDebug.h"
 #include "Utils.h"
+#include "UserPreferences.h"

ring-client-uwp.vcxproj

@@ -189,6 +189,7 @@
     <ClInclude Include="SmartPanel.xaml.h">
       <DependentUpon>SmartPanel.xaml</DependentUpon>
     </ClInclude>
+    <ClInclude Include="UserPreferences.h" />
     <ClInclude Include="Utils.h" />
     <ClInclude Include="VideoPage.xaml.h">
       <DependentUpon>VideoPage.xaml</DependentUpon>
@@ -293,6 +294,7 @@
     <ClCompile Include="SmartPanel.xaml.cpp">
       <DependentUpon>SmartPanel.xaml</DependentUpon>
     </ClCompile>
+    <ClCompile Include="UserPreferences.cpp" />
     <ClCompile Include="VideoPage.xaml.cpp">
       <DependentUpon>VideoPage.xaml</DependentUpon>
     </ClCompile>

ring-client-uwp.vcxproj.filters

@@ -77,6 +77,9 @@
     <ClCompile Include="CallsViewModel.cpp">
       <Filter>ModelViews</Filter>
     </ClCompile>
+    <ClCompile Include="UserPreferences.cpp">
+      <Filter>Common</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="pch.h" />
@@ -119,6 +122,9 @@
     <ClInclude Include="Conversation.h">
       <Filter>Model</Filter>
     </ClInclude>
+    <ClInclude Include="UserPreferences.h">
+      <Filter>Common</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Image Include="Assets\LockScreenLogo.scale-200.png">