Fix some compiler warnings

libdino/src/service/avatar_manager.vala

@@ -45,28 +45,6 @@ public class AvatarManager : StreamInteractionModule, Object {
         });
     }
 
-    private async Pixbuf? get_avatar_by_hash(string hash) {
-        if (cached_pixbuf.has_key(hash)) {
-            return cached_pixbuf[hash];
-        }
-        if (pending_pixbuf.has_key(hash)) {
-            pending_pixbuf[hash].add(new SourceFuncWrapper(get_avatar_by_hash.callback));
-            yield;
-            return cached_pixbuf[hash];
-        }
-        pending_pixbuf[hash] = new ArrayList<SourceFuncWrapper>();
-        Pixbuf? image = yield get_image(hash);
-        if (image != null) {
-            cached_pixbuf[hash] = image;
-        } else {
-            db.avatar.delete().with(db.avatar.hash, "=", hash).perform();
-        }
-        foreach (SourceFuncWrapper sfw in pending_pixbuf[hash]) {
-            sfw.sfun();
-        }
-        return image;
-    }
-
     private string? get_avatar_hash(Account account, Jid jid_) {
         Jid jid = jid_;
         if (!stream_interactor.get_module(MucManager.IDENTITY).is_groupchat_occupant(jid_, account)) {
@@ -86,18 +64,6 @@ public class AvatarManager : StreamInteractionModule, Object {
         return hash != null && cached_pixbuf.has_key(hash);
     }
 
-    public async bool has_avatar_stored(Account account, Jid jid) {
-        string? hash = get_avatar_hash(account, jid);
-        if (hash == null) return false;
-        if (cached_pixbuf.has_key(hash)) return true;
-        try {
-            if ((yield File.new_for_path(Path.build_filename(folder, hash)).query_info_async(FileAttribute.STANDARD_NAME, FileQueryInfoFlags.NONE)) != null) return true;
-        } catch (IOError ignored) {
-            return false;
-        }
-        return false;
-    }
-
     public bool has_avatar(Account account, Jid jid) {
         return get_avatar_hash(account, jid) != null;
     }

libdino/src/service/database.vala

@@ -293,9 +293,14 @@ public class Database : Qlite.Database {
         mam_catchup = new MamCatchupTable(this);
         settings = new SettingsTable(this);
         init({ account, jid, entity, content_item, message, message_correction, real_jid, file_transfer, conversation, avatar, entity_identity, entity_feature, roster, mam_catchup, settings });
-        exec("PRAGMA journal_mode = WAL");
-        exec("PRAGMA synchronous = NORMAL");
-        exec("PRAGMA secure_delete = ON");
+
+        try {
+            exec("PRAGMA journal_mode = WAL");
+            exec("PRAGMA synchronous = NORMAL");
+            exec("PRAGMA secure_delete = ON");
+        } catch (Error e) {
+            error("Failed to set database properties: %s", e.message);
+        }
     }
 
     public override void migrate(long oldVersion) {

libdino/src/service/entity_capabilities_storage.vala

@@ -16,7 +16,7 @@ public class EntityCapabilitiesStorage : Xep.EntityCapabilities.Storage, Object
     }
 
     public void store_features(string entity, Gee.List<string> features) {
-        if (features_cache.contains(entity)) return;
+        if (features_cache.has_key(entity)) return;
 
         foreach (string feature in features) {
             db.entity_feature.insert()

libdino/src/service/entity_info.vala

@@ -37,7 +37,7 @@ public class EntityInfo : StreamInteractionModule, Object {
             stream.get_module(ServiceDiscovery.Module.IDENTITY).cache = cache;
 
             string? hash = EntityCapabilities.get_server_caps_hash(stream);
-            entity_caps_hashes[new Jid(account.domainpart)] = hash;
+            entity_caps_hashes[account.bare_jid.domain_jid] = hash;
         });
         stream_interactor.module_manager.initialize_account_modules.connect(initialize_modules);
     }

libdino/src/service/jingle_file_transfers.vala

@@ -85,7 +85,8 @@ public class JingleFileProvider : FileProvider, Object {
     public Encryption get_encryption(FileTransfer file_transfer, FileReceiveData receive_data, FileMeta file_meta) {
         Xmpp.Xep.JingleFileTransfer.FileTransfer? jingle_file_transfer = file_transfers[file_transfer.info];
         if (jingle_file_transfer == null) {
-            throw new FileReceiveError.DOWNLOAD_FAILED("Transfer data not available anymore");
+            return Encryption.NONE;
+            warning("Could not determine jingle encryption - transfer data not available anymore");
         }
         foreach (JingleFileEncryptionHelper helper in JingleFileHelperRegistry.instance.encryption_helpers.values) {
             var encryption = helper.get_encryption(jingle_file_transfer);

libdino/src/service/module_manager.vala

@@ -34,9 +34,9 @@ public class ModuleManager {
 
         foreach (XmppStreamModule module in module_map[account]) {
             if (module.get_id() == Bind.Module.IDENTITY.id) {
-                (module as Bind.Module).requested_resource = resource ?? account.resourcepart;
+                ((Bind.Module) module).requested_resource = resource ?? account.resourcepart;
             } else if (module.get_id() == Sasl.Module.IDENTITY.id) {
-                (module as Sasl.Module).password = account.password;
+                ((Sasl.Module) module).password = account.password;
             }
         }
         return modules;

libdino/src/service/notification_events.vala

@@ -49,11 +49,11 @@ public class NotificationEvents : StreamInteractionModule, Object {
 
         switch (content_item.type_) {
             case MessageItem.TYPE:
-                Message message = (content_item as MessageItem).message;
+                Message message = ((MessageItem) content_item).message;
                 if (message.direction == Message.DIRECTION_SENT) return false;
                 break;
             case FileItem.TYPE:
-                FileTransfer file_transfer = (content_item as FileItem).file_transfer;
+                FileTransfer file_transfer = ((FileItem) content_item).file_transfer;
                 // Don't notify on file transfers in a groupchat set to "mention only"
                 if (notify == Conversation.NotifySetting.HIGHLIGHT) return false;
                 if (file_transfer.direction == FileTransfer.DIRECTION_SENT) return false;
@@ -64,7 +64,7 @@ public class NotificationEvents : StreamInteractionModule, Object {
             Jid? nick = stream_interactor.get_module(MucManager.IDENTITY).get_own_jid(conversation.counterpart, conversation.account);
             if (nick == null) return false;
 
-            Entities.Message message = (content_item as MessageItem).message;
+            Entities.Message message = ((MessageItem) content_item).message;
             return Regex.match_simple("\\b" + Regex.escape_string(nick.resourcepart) + "\\b", message.body, RegexCompileFlags.CASELESS);
         }
         return true;

main/src/ui/chat_input/chat_input_controller.vala

@@ -129,12 +129,12 @@ public class ChatInputController : Object {
                     }
                     return;
                 case "/nick":
-                    stream_interactor.get_module(MucManager.IDENTITY).change_nick(conversation, token[1]);
+                    stream_interactor.get_module(MucManager.IDENTITY).change_nick.begin(conversation, token[1]);
                     return;
                 case "/ping":
                     Xmpp.XmppStream? stream = stream_interactor.get_stream(conversation.account);
                     try {
-                        stream.get_module(Xmpp.Xep.Ping.Module.IDENTITY).send_ping(stream, conversation.counterpart.with_resource(token[1]), null);
+                        stream.get_module(Xmpp.Xep.Ping.Module.IDENTITY).send_ping.begin(stream, conversation.counterpart.with_resource(token[1]), null);
                     } catch (Xmpp.InvalidJidError e) {
                         warning("Could not ping invalid Jid: %s", e.message);
                     }

main/src/ui/contact_details/dialog.vala

@@ -36,7 +36,8 @@ public class Dialog : Gtk.Dialog {
 
         title = conversation.type_ == Conversation.Type.GROUPCHAT ? _("Conference Details") : _("Contact Details");
         if (Util.use_csd()) {
-            (get_header_bar() as HeaderBar).set_subtitle(Util.get_conversation_display_name(stream_interactor, conversation));
+            // TODO get_header_bar directly returns a HeaderBar in vala > 0.48
+            ((HeaderBar) get_header_bar()).set_subtitle(Util.get_conversation_display_name(stream_interactor, conversation));
         }
         setup_top();
 

main/src/ui/conversation_content_view/conversation_view.vala

@@ -444,7 +444,7 @@ public class ConversationView : Box, Plugins.ConversationItemCollection, Plugins
         was_value = scrolled.vadjustment.value;
         if (!reloading_mutex.trylock()) return;
         if (content_items.size > 0) {
-            Gee.List<ContentMetaItem> items = content_populator.populate_before(conversation, (content_items.first() as ContentMetaItem).content_item, 20);
+            Gee.List<ContentMetaItem> items = content_populator.populate_before(conversation, ((ContentMetaItem) content_items.first()).content_item, 20);
             foreach (ContentMetaItem item in items) {
                 do_insert_item(item);
             }
@@ -456,7 +456,7 @@ public class ConversationView : Box, Plugins.ConversationItemCollection, Plugins
     private void load_later_messages() {
         if (!reloading_mutex.trylock()) return;
         if (content_items.size > 0 && !at_current_content) {
-            Gee.List<ContentMetaItem> items = content_populator.populate_after(conversation, (content_items.last() as ContentMetaItem).content_item, 20);
+            Gee.List<ContentMetaItem> items = content_populator.populate_after(conversation, ((ContentMetaItem) content_items.last()).content_item, 20);
             if (items.size == 0) {
                 at_current_content = true;
             }

main/src/ui/conversation_view_controller.vala

@@ -176,10 +176,14 @@ public class ConversationViewController : Object {
         if (clipboard.wait_is_image_available()) {
             clipboard.request_image((_, pixbuf) => {
                 File file = File.new_for_path(Path.build_filename(FileManager.get_storage_dir(), Xmpp.random_uuid() + ".png"));
-                DataOutputStream fos = new DataOutputStream(file.create(FileCreateFlags.REPLACE_DESTINATION));
-                pixbuf.save_to_stream_async.begin(fos, "png", null, () => {
-                    open_send_file_overlay(file);
-                });
+                try {
+                    FileOutputStream fos = file.create(FileCreateFlags.REPLACE_DESTINATION);
+                    pixbuf.save_to_stream_async.begin(fos, "png", null, () => {
+                        open_send_file_overlay(file);
+                    });
+                } catch (Error e) {
+                    warning("Could not create file to store pasted image in %s, %s", file.get_path(), e.message);
+                }
             });
         }
     }
@@ -191,8 +195,12 @@ public class ConversationViewController : Object {
                     string[] uris = selection_data.get_uris();
                     // For now we only process the first dragged file
                     if (uris.length >= 1) {
-                        string file_path = Filename.from_uri(uris[0]);
-                        open_send_file_overlay(File.new_for_path(file_path));
+                        try  {
+                            string file_path = Filename.from_uri(uris[0]);
+                            open_send_file_overlay(File.new_for_path(file_path));
+                        } catch (ConvertError e) {
+                            warning("Could not handle dragged file %s, %s", uris[0], e.message);
+                        }
                     }
                     break;
                 default:

main/src/ui/notifications.vala

@@ -55,12 +55,11 @@ public class Notifications : Object {
         string text = "";
         switch (content_item.type_) {
             case MessageItem.TYPE:
-                Message message = (content_item as MessageItem).message;
+                Message message = ((MessageItem) content_item).message;
                 text = message.body;
                 break;
             case FileItem.TYPE:
-                FileItem file_item = content_item as FileItem;
-                FileTransfer transfer = file_item.file_transfer;
+                FileTransfer transfer = ((FileItem) content_item).file_transfer;
 
                 bool file_is_image = transfer.mime_type != null && transfer.mime_type.has_prefix("image");
                 if (transfer.direction == Message.DIRECTION_SENT) {

main/src/ui/util/accounts_combo_box.vala

@@ -24,7 +24,8 @@ class AccountComboBox : ComboBox {
                 do {
                     Value val;
                     list_store.get_value(iter, 1, out val);
-                    if ((val as Account).equals(value)) {
+                    Account? account = val as Account;
+                    if (account != null && account.equals(value)) {
                         active = i;
                         break;
                     }

main/src/ui/util/helper.vala

@@ -441,7 +441,7 @@ public string summarize_whitespaces_to_space(string s) {
 }
 
 public bool use_csd() {
-    return (GLib.Application.get_default() as Application).use_csd();
+    return ((Application) GLib.Application.get_default()).use_csd();
 }
 
 }

main/src/ui/util/scaling_image.vala

@@ -148,21 +148,6 @@ class ScalingImage : Misc {
         return buffer;
     }
 
-    private static Gdk.Pixbuf crop_corners(Gdk.Pixbuf pixbuf, double radius = 3) {
-        Cairo.Context ctx = new Cairo.Context(new Cairo.ImageSurface(Cairo.Format.ARGB32, pixbuf.width, pixbuf.height));
-        Gdk.cairo_set_source_pixbuf(ctx, pixbuf, 0, 0);
-        double degrees = Math.PI / 180.0;
-        ctx.new_sub_path();
-        ctx.arc(pixbuf.width - radius, radius, radius, -90 * degrees, 0 * degrees);
-        ctx.arc(pixbuf.width - radius, pixbuf.height - radius, radius, 0 * degrees, 90 * degrees);
-        ctx.arc(radius, pixbuf.height - radius, radius, 90 * degrees, 180 * degrees);
-        ctx.arc(radius, radius, radius, 180 * degrees, 270 * degrees);
-        ctx.close_path();
-        ctx.clip();
-        ctx.paint();
-        return Gdk.pixbuf_get_from_surface(ctx.get_target(), 0, 0, pixbuf.width, pixbuf.height);
-    }
-
     public override void get_preferred_width(out int minimum_width, out int natural_width) {
         minimum_width = int.max(0, min_width);
         double exact_width = -1, exact_height = -1;

plugins/gpgme-vala/vapi/gpgme.vapi

@@ -454,11 +454,11 @@ namespace GPG {
 
         
         [CCode (cname = "gpgme_data_new_from_mem")]
-        public static GPGError.Error new_from_memory(out Data d, uint8[] buffer, bool copy);
+        public static GPGError.Error new_from_memory(out Data d, char[] buffer, bool copy);
 
         public static Data create_from_memory(uint8[] buffer, bool copy) throws GLib.Error {
             Data data;
-            throw_if_error(new_from_memory(out data, buffer, copy));
+            throw_if_error(new_from_memory(out data, (char[]) buffer, copy));
             return data;
         }
 

plugins/omemo/src/plugin.vala

@@ -65,7 +65,7 @@ public class Plugin : RootInterface, Object {
             foreach(Dino.Entities.Account account in this.app.stream_interactor.get_accounts()) {
                 if(account.id == variant.get_int32()) {
                     ContactDetailsDialog dialog = new ContactDetailsDialog(this, account, account.bare_jid);
-                    dialog.set_transient_for((this.app as Gtk.Application).get_active_window());
+                    dialog.set_transient_for(((Gtk.Application) this.app).get_active_window());
                     dialog.present();
                 }
             }

plugins/omemo/src/ui/contact_details_dialog.vala

@@ -59,7 +59,7 @@ public class ContactDetailsDialog : Gtk.Dialog {
         this.jid = jid;
 
         if (Environment.get_variable("GTK_CSD") != "0") {
-            (get_header_bar() as HeaderBar).set_subtitle(jid.bare_jid.to_string());
+            ((HeaderBar) get_header_bar()).set_subtitle(jid.bare_jid.to_string());
         }
 
         keys_listbox.row_activated.connect(on_key_entry_clicked);

xmpp-vala/src/module/xep/0082_date_time_profiles.vala

@@ -1,16 +1,12 @@
 namespace Xmpp.Xep.DateTimeProfiles {
 
 public DateTime? parse_string(string time_string) {
-    TimeVal time_val = TimeVal();
-    if (time_val.from_iso8601(time_string)) {
-        return new DateTime.from_unix_utc(time_val.tv_sec);
-    }
-    return null;
+    return new DateTime.from_iso8601(time_string, null);
 }
 
 
 public string to_datetime(DateTime time) {
-    return time.to_utc().format("%Y-%m-%dT%H:%M:%SZ");
+    return time.to_utc().format_iso8601().to_string();
 }
 
 }