[gnome-contacts] ContactStore: only store 1 calling account.

[Niels De Graef <nielsdg src gnome org>]

commit 5efeaea38664b9c3e99ae26baa3c00a04b3eb2dc
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Sun Dec 24 01:50:14 2017 +0100

    ContactStore: only store 1 calling account.
    
    Telepathy is on it's way out, and really, the end-result of this code
    still does exactly the same thing.

 src/contacts-contact-sheet.vala |    4 ++--
 src/contacts-store.vala         |   18 +++---------------
 src/contacts-utils.vala         |    8 +-------
 3 files changed, 6 insertions(+), 24 deletions(-)
---
diff --git a/src/contacts-contact-sheet.vala b/src/contacts-contact-sheet.vala
index e0243f2..6b96794 100644
--- a/src/contacts-contact-sheet.vala
+++ b/src/contacts-contact-sheet.vala
@@ -152,10 +152,10 @@ public class Contacts.ContactSheet : Grid {
       if (phone_details != null) {
        var phones = Contact.sort_fields<PhoneFieldDetails>(phone_details.phone_numbers);
        foreach (var phone in phones) {
-         if (c.store != null && c.store.can_call) {
+         if (c.store != null && c.store.caller_account != null) {
            var button = add_row_with_button (ref i, TypeSet.phone.format_type (phone), phone.value);
            button.clicked.connect (() => {
-            Utils.start_call (phone.value, c.store.calling_accounts);
+            Utils.start_call (phone.value, c.store.caller_account);
              });
          } else {
            add_row_with_label (ref i, TypeSet.phone.format_type (phone), phone.value);
diff --git a/src/contacts-store.vala b/src/contacts-store.vala
index f841f2f..c92f61a 100644
--- a/src/contacts-store.vala
+++ b/src/contacts-store.vala
@@ -34,15 +34,9 @@ public class Contacts.Store : GLib.Object {
   public BackendStore backend_store { get; private set; }
   Gee.ArrayList<Contact> contacts;
 
-  public Gee.HashMap<string, Account> calling_accounts;
-
   public Gee.HashMultiMap<string, string> dont_suggest_link;
 
-  public bool can_call {
-    get {
-      return this.calling_accounts.size > 0 ? true : false;
-    }
-  }
+  public Account? caller_account { get; private set; default = null; }
 
   public bool is_quiescent {
     get { return this.aggregator.is_quiescent; }
@@ -319,7 +313,6 @@ public class Contacts.Store : GLib.Object {
 
   // TODO: listen for changes in Account#URISchemes
   private async void check_call_capabilities () {
-    this.calling_accounts = new Gee.HashMap<string, Account> ();
     var account_manager = AccountManager.dup ();
 
     try {
@@ -347,13 +340,8 @@ public class Contacts.Store : GLib.Object {
     }
 
     if (account.is_prepared (addressing)) {
-      var k = account.get_object_path ();
-      if (account.is_enabled () &&
-         account.associated_with_uri_scheme ("tel")) {
-       this.calling_accounts.set (k, account);
-      } else {
-       this.calling_accounts.unset (k);
-      }
+      if (account.is_enabled () && account.associated_with_uri_scheme ("tel"))
+        this.caller_account = account;
     }
   }
 }
diff --git a/src/contacts-utils.vala b/src/contacts-utils.vala
index c629778..a589a16 100644
--- a/src/contacts-utils.vala
+++ b/src/contacts-utils.vala
@@ -168,13 +168,7 @@ namespace Contacts.Utils {
     request.ensure_channel_async.begin ("org.freedesktop.Telepathy.Client.Empathy.Chat", null);
   }
 
-  public void start_call (string contact_id, Gee.HashMap<string, TelepathyGLib.Account> accounts) {
-    // TODO: prompt for which account to use
-    var account = accounts.values.to_array ()[0];
-    Utils.start_call_with_account (contact_id, account);
-  }
-
-  public void start_call_with_account (string contact_id, TelepathyGLib.Account account) {
+  public void start_call (string contact_id, TelepathyGLib.Account account) {
     var request_dict = new HashTable<weak string,GLib.Value?>(str_hash, str_equal);
 
     request_dict.insert (TelepathyGLib.PROP_CHANNEL_CHANNEL_TYPE,