wix: only add a desktop shortcut on the first install

Change-Id: I32680db1ca81db77b8c49550531ecac992897a47

JamiInstaller/Product.wxs

@@ -35,6 +35,22 @@
       <MergeRef Id="VCRedist"/>
     </Feature>
 
+    <SetProperty After="FindRelatedProducts" Id="FirstInstall" Value="true">
+      NOT Installed AND NOT WIX_UPGRADE_DETECTED AND NOT WIX_DOWNGRADE_DETECTED
+    </SetProperty>
+    <SetProperty After="SetFirstInstall" Id="Upgrading" Value="true">
+      WIX_UPGRADE_DETECTED AND NOT (REMOVE="ALL")
+    </SetProperty>
+    <SetProperty After="RemoveExistingProducts" Id="RemovingForUpgrade" Sequence="execute" Value="true">
+      (REMOVE="ALL") AND UPGRADINGPRODUCTCODE
+    </SetProperty>
+    <SetProperty After="SetUpgrading" Id="Uninstalling" Value="true">
+      Installed AND (REMOVE="ALL") AND NOT (WIX_UPGRADE_DETECTED OR UPGRADINGPRODUCTCODE)
+    </SetProperty>
+    <SetProperty After="SetUninstalling" Id="Maintenance" Value="true">
+      Installed AND NOT Upgrading AND NOT Uninstalling AND NOT UPGRADINGPRODUCTCODE
+    </SetProperty>
+
     <!--SetDirectory of APPLICATIONFOLDER -->
     <SetDirectory Id="APPLICATIONFOLDER" Value="[ProgramFiles64Folder][ApplicationFolderName]">APPLICATIONFOLDER=""</SetDirectory>
     <SetProperty Id="ARPINSTALLLOCATION" Value="[APPLICATIONFOLDER]" After="CostFinalize" />
@@ -81,6 +97,7 @@
         <Shortcut Id="ApplicationShortcutDesktop" Name="$(var.Name)" Description="Launch $(var.Name)" Target="[#fileMain.exe]" WorkingDirectory="INSTALLFOLDER" />
         <RemoveFolder Id="DesktopFolder" On="uninstall" />
         <RegistryValue Root="HKCU" Key="Software\jami.net\$(var.Name)" Name="desktop" Type="integer" Value="1" KeyPath="yes" />
+        <Condition>FirstInstall</Condition>
       </Component>
     </DirectoryRef>