New upstream version 0.25.1upstream/0.25.1

1 files changed, 202 insertions, 238 deletions

diff --git a/plugins/shotwell-publishing/PiwigoPublishing.vala b/plugins/shotwell-publishing/PiwigoPublishing.vala
index 0b98f05..ca07554 100644
--- a/plugins/shotwell-publishing/PiwigoPublishing.vala
+++ b/plugins/shotwell-publishing/PiwigoPublishing.vala
@@ -85,6 +85,10 @@ internal class Category {
     public bool is_local() {
         return this.id == NO_ID;
     }
+
+    public static bool equal (Category self, Category other) {
+        return self.id == other.id;
+    }
 }
 
 internal class PermissionLevel {
@@ -613,35 +617,29 @@ public class PiwigoPublisher : Spit.Publishing.Publisher, GLib.Object {
             string name = "";
             string id_string = "";
             string uppercats = "";
+            var id_map = new Gee.HashMap<string, string> ();
+
             for ( ; category_node_iter != null; category_node_iter = category_node_iter->next) {
                 name_node = doc.get_named_child(category_node_iter, "name");
                 name = name_node->get_content();
                 uppercats_node = doc.get_named_child(category_node_iter, "uppercats");
                 uppercats = (string)uppercats_node->get_content();
                 id_string = category_node_iter->get_prop("id");
+                id_map.set (id_string, name);
+
                 if (categories == null) {
                     categories = new Category[0];
                 }
                 categories += new Category(int.parse(id_string), name, uppercats);
             }
+
             // compute the display name for the categories
-            // currently done by an unnecessary triple loop
-            // one could make a loop that goes over the categories
-            // and creates a list of back references cat_id -> index
-            // but since cat_ids are not guaranteed to be continuous
-            // that needs a perl hash ;-)
             for(int i = 0; i < categories.length; i++) {
                 string[] upcatids = categories[i].uppercats.split(",");
                 var builder = new StringBuilder();
                 for (int j=0; j < upcatids.length; j++) {
                     builder.append ("/ ");
-                    // search for the upper category
-                    for (int k=0; k < categories.length; k++) {
-                        if (upcatids[j] == categories[k].id.to_string()) {
-                            builder.append (categories[k].name);
-                            break;
-                        }
-                    }
+                    builder.append (id_map.get (upcatids[j]));
                     builder.append (" ");
                 }
                 categories[i].display_name = builder.str;
@@ -1005,158 +1003,148 @@ internal class Uploader : Publishing.RESTSupport.BatchUploader {
 
 // UI elements
 
-internal class SSLErrorPane : Spit.Publishing.DialogPane, Object {
-    private Gtk.Builder builder;
-    private Gtk.Widget content;
+internal class SSLErrorPane : Shotwell.Plugins.Common.BuilderPane {
 
     public signal void proceed ();
+    public string host { owned get; construct; }
+    public TlsCertificate cert { private get; construct; }
+    public string error_text { owned get; construct; }
 
     public SSLErrorPane (SessionLoginTransaction transaction,
                          string host) {
-        try {
-            TlsCertificate cert;
-            this.builder = new Gtk.Builder ();
-            this.builder.add_from_resource (Resources.RESOURCE_PATH +
-                                            "/piwigo_ssl_failure_pane.ui");
-            this.content = this.builder.get_object ("content") as Gtk.Widget;
-            var label = this.builder.get_object ("main_text") as Gtk.Label;
-            // %s is the host name that we tried to connect to
-            label.set_text (_("This does not look like the real <b>%s</b>. Attackers might be trying to steal or alter information going to or from this site (for example, private messages, credit card information, or passwords).").printf (host));
-            label.use_markup = true;
-
-            label = this.builder.get_object ("ssl_errors") as Gtk.Label;
-            var text = transaction.detailed_error_from_tls_flags (out cert);
-            label.set_text (text);
-
-            var info = this.builder.get_object ("default") as Gtk.Button;
-            info.clicked.connect (() => {
-                var simple_cert = new Gcr.SimpleCertificate (cert.certificate.data);
-                var widget = new Gcr.CertificateWidget (simple_cert);
-
-                var dialog = new Gtk.Dialog ();
-                dialog.get_content_area ().add (widget);
-                dialog.add_button ("_OK", Gtk.ResponseType.OK);
-                dialog.set_default_response (Gtk.ResponseType.OK);
-                dialog.set_default_size (640, -1);
-                dialog.show_all ();
-                dialog.run ();
-                dialog.destroy ();
-            });
-
-            var proceed = this.builder.get_object ("proceed_button") as Gtk.Button;
-            proceed.clicked.connect (() => { this.proceed (); });
-
-            if (this.content.parent != null) {
-                this.content.parent.remove (this.content);
+        TlsCertificate cert;
+        var text = transaction.detailed_error_from_tls_flags (out cert);
+        Object (resource_path : Resources.RESOURCE_PATH +
+                                "/piwigo_ssl_failure_pane.ui",
+                default_id: "default",
+                cert : cert,
+                error_text : text,
+                host : host);
+    }
+
+    public override void constructed () {
+        base.constructed ();
+
+        var label = this.get_builder ().get_object ("main_text") as Gtk.Label;
+        // %s is the host name that we tried to connect to
+        label.set_text (_("This does not look like the real <b>%s</b>. Attackers might be trying to steal or alter information going to or from this site (for example, private messages, credit card information, or passwords).").printf (host));
+        label.use_markup = true;
+
+        label = this.get_builder ().get_object ("ssl_errors") as Gtk.Label;
+        label.set_text (error_text);
+
+        var info = this.get_builder ().get_object ("default") as Gtk.Button;
+        info.clicked.connect (() => {
+            var simple_cert = new Gcr.SimpleCertificate (cert.certificate.data);
+            var widget = new Gcr.CertificateWidget (simple_cert);
+            bool use_header = true;
+            Gtk.Settings.get_default ().get ("gtk-dialogs-use-header", out use_header);
+            var flags = (Gtk.DialogFlags) 0;
+            if (use_header) {
+                flags |= Gtk.DialogFlags.USE_HEADER_BAR;
             }
-        } catch (Error error) {
-            warning ("Failed to create ui file: %s", error.message);
-            assert_not_reached ();
-        }
-    }
 
-    public Spit.Publishing.DialogPane.GeometryOptions get_preferred_geometry () {
-        return Spit.Publishing.DialogPane.GeometryOptions.NONE;
-    }
-
-    public Gtk.Widget get_widget () {
-        return this.content;
-    }
+            var dialog = new Gtk.Dialog.with_buttons (
+                            _("Certificate of %s").printf (host),
+                            null,
+                            flags,
+                            _("_OK"), Gtk.ResponseType.OK);
+            dialog.get_content_area ().add (widget);
+            dialog.set_default_response (Gtk.ResponseType.OK);
+            dialog.set_default_size (640, -1);
+            dialog.show_all ();
+            dialog.run ();
+            dialog.destroy ();
+        });
 
-    public Gtk.Widget get_default_widget () {
-        return this.builder.get_object ("default") as Gtk.Widget;
+        var proceed = this.get_builder ().get_object ("proceed_button") as Gtk.Button;
+        proceed.clicked.connect (() => { this.proceed (); });
     }
-
-    public void on_pane_installed () { }
-
-    public void on_pane_uninstalled () { }
 }
 
 /**
  * The authentication pane used when asking service URL, user name and password
  * from the user.
  */
-internal class AuthenticationPane : Spit.Publishing.DialogPane, Object {
+internal class AuthenticationPane : Shotwell.Plugins.Common.BuilderPane {
     public enum Mode {
         INTRO,
         FAILED_RETRY_URL,
         FAILED_RETRY_USER
     }
+
+    public Mode mode { get; construct; }
+    public unowned PiwigoPublisher publisher { get; construct; }
+
     private static string INTRO_MESSAGE = _("Enter the URL of your Piwigo photo library as well as the username and password associated with your Piwigo account for that library.");
     private static string FAILED_RETRY_URL_MESSAGE = _("Shotwell cannot contact your Piwigo photo library. Please verify the URL you entered");
     private static string FAILED_RETRY_USER_MESSAGE = _("Username and/or password invalid. Please try again");
 
-    private Gtk.Box pane_widget = null;
-    private Gtk.Builder builder;
     private Gtk.Entry url_entry;
     private Gtk.Entry username_entry;
     private Gtk.Entry password_entry;
-    private Gtk.CheckButton remember_password_checkbutton;
+    private Gtk.Switch remember_password_checkbutton;
     private Gtk.Button login_button;
 
     public signal void login(string url, string user, string password, bool remember_password);
 
-    public AuthenticationPane(PiwigoPublisher publisher, Mode mode = Mode.INTRO) {
-        this.pane_widget = new Gtk.Box(Gtk.Orientation.VERTICAL, 0);
+    public AuthenticationPane (PiwigoPublisher publisher, Mode mode = Mode.INTRO) {
+        Object (resource_path : Resources.RESOURCE_PATH +
+                                "/piwigo_authentication_pane.ui",
+                connect_signals : true,
+                default_id : "login_button",
+                mode : mode,
+                publisher : publisher);
+    }
 
-        try {
-            builder = new Gtk.Builder();
-            builder.add_from_resource (Resources.RESOURCE_PATH + "/piwigo_authentication_pane.ui");
-            builder.connect_signals(null);
-            Gtk.Alignment align = builder.get_object("alignment") as Gtk.Alignment;
-            
-            Gtk.Label message_label = builder.get_object("message_label") as Gtk.Label;
-            switch (mode) {
-                case Mode.INTRO:
-                    message_label.set_text(INTRO_MESSAGE);
-                    break;
-
-                case Mode.FAILED_RETRY_URL:
-                    message_label.set_markup("<b>%s</b>\n\n%s".printf(_(
-                        "Invalid URL"), FAILED_RETRY_URL_MESSAGE));
-                    break;
-
-                case Mode.FAILED_RETRY_USER:
-                    message_label.set_markup("<b>%s</b>\n\n%s".printf(_(
-                        "Invalid User Name or Password"), FAILED_RETRY_USER_MESSAGE));
-                    break;
-            }
+    public override void constructed () {
+        base.constructed ();
 
-            url_entry = builder.get_object ("url_entry") as Gtk.Entry;
-            string? persistent_url = publisher.get_persistent_url();
-            if (persistent_url != null) {
-                url_entry.set_text(persistent_url);
-            }
-            username_entry = builder.get_object ("username_entry") as Gtk.Entry;
-            string? persistent_username = publisher.get_persistent_username();
-            if (persistent_username != null) {
-                username_entry.set_text(persistent_username);
-            }
-            password_entry = builder.get_object ("password_entry") as Gtk.Entry;
-            string? persistent_password = publisher.get_persistent_password();
-            if (persistent_password != null) {
-                password_entry.set_text(persistent_password);
-            }
-            remember_password_checkbutton =
-                builder.get_object ("remember_password_checkbutton") as Gtk.CheckButton;
-            remember_password_checkbutton.set_active(publisher.get_remember_password());
+        var builder = this.get_builder ();
+        var message_label = builder.get_object("message_label") as Gtk.Label;
+        switch (mode) {
+            case Mode.INTRO:
+                message_label.set_text(INTRO_MESSAGE);
+                break;
 
-            login_button = builder.get_object("login_button") as Gtk.Button;
+            case Mode.FAILED_RETRY_URL:
+                message_label.set_markup("<b>%s</b>\n\n%s".printf(_(
+                    "Invalid URL"), FAILED_RETRY_URL_MESSAGE));
+                break;
 
-            username_entry.changed.connect(on_user_changed);
-            url_entry.changed.connect(on_url_changed);
-            password_entry.changed.connect(on_password_changed);
-            login_button.clicked.connect(on_login_button_clicked);
+            case Mode.FAILED_RETRY_USER:
+                message_label.set_markup("<b>%s</b>\n\n%s".printf(_(
+                    "Invalid User Name or Password"), FAILED_RETRY_USER_MESSAGE));
+                break;
+        }
 
-            align.reparent(pane_widget);
-            publisher.get_host().set_dialog_default_widget(login_button);
-        } catch (Error e) {
-            warning("Could not load UI: %s", e.message);
+        url_entry = builder.get_object ("url_entry") as Gtk.Entry;
+        string? persistent_url = publisher.get_persistent_url();
+        if (persistent_url != null) {
+            url_entry.set_text(persistent_url);
         }
-    }
-    
-    public Gtk.Widget get_default_widget() {
-        return login_button;
+        username_entry = builder.get_object ("username_entry") as Gtk.Entry;
+        string? persistent_username = publisher.get_persistent_username();
+        if (persistent_username != null) {
+            username_entry.set_text(persistent_username);
+        }
+        password_entry = builder.get_object ("password_entry") as Gtk.Entry;
+        string? persistent_password = publisher.get_persistent_password();
+        if (persistent_password != null) {
+            password_entry.set_text(persistent_password);
+        }
+        remember_password_checkbutton =
+            builder.get_object ("remember_password_checkbutton") as Gtk.Switch;
+        remember_password_checkbutton.set_active(publisher.get_remember_password());
+
+        login_button = builder.get_object("login_button") as Gtk.Button;
+
+        username_entry.changed.connect(on_user_changed);
+        url_entry.changed.connect(on_url_changed);
+        password_entry.changed.connect(on_password_changed);
+        login_button.clicked.connect(on_login_button_clicked);
+
+        publisher.get_host().set_dialog_default_widget(login_button);
     }
 
     private void on_login_button_clicked() {
@@ -1182,34 +1170,23 @@ internal class AuthenticationPane : Spit.Publishing.DialogPane, Object {
                                    password_entry.text_length != 0);
     }
     
-    public Gtk.Widget get_widget() {
-        return pane_widget;
-    }
-    
-    public Spit.Publishing.DialogPane.GeometryOptions get_preferred_geometry() {
-        return Spit.Publishing.DialogPane.GeometryOptions.NONE;
-    }
-    
-    public void on_pane_installed() {
+    public override void on_pane_installed() {
+        base.on_pane_installed ();
+
         url_entry.grab_focus();
         password_entry.set_activates_default(true);
         login_button.can_default = true;
         update_login_button_sensitivity();
     }
-    
-    public void on_pane_uninstalled() {
-    }
 }
 
 /**
  * The publishing options pane.
  */
-internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
+internal class PublishingOptionsPane : Shotwell.Plugins.Common.BuilderPane {
 
     private static string DEFAULT_CATEGORY_NAME = _("Shotwell Connect");
 
-    private Gtk.Box pane_widget = null;
-    private Gtk.Builder builder;
     private Gtk.RadioButton use_existing_radio;
     private Gtk.RadioButton create_new_radio;
     private Gtk.ComboBoxText existing_categories_combo;
@@ -1225,88 +1202,88 @@ internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
     private Gtk.Button publish_button;
     private Gtk.TextView album_comment;
     private Gtk.Label album_comment_label;
-    
-    private Category[] existing_categories;
+
     private PermissionLevel[] perm_levels;
     private SizeEntry[] photo_sizes;
-    
-    private int last_category;
-    private int last_permission_level;
-    private int last_photo_size;
-    private bool last_title_as_comment;
-    private bool last_no_upload_tags;
+
+    public int last_category { private get; construct; }
+    public int last_permission_level { private get; construct; }
+    public int last_photo_size { private get; construct; }
+    public bool last_title_as_comment { private get; construct; }
+    public bool last_no_upload_tags { private get; construct; }
+    public bool strip_metadata_enabled { private get; construct; }
+    public Gee.List<Category> existing_categories { private get; construct; }
+    public string default_comment { private get; construct; }
 
     public signal void publish(PublishingParameters parameters, bool strip_metadata);
     public signal void logout();
 
-    public PublishingOptionsPane(
-        PiwigoPublisher publisher, Category[] categories,
-        int last_category, int last_permission_level, int last_photo_size,
-        bool last_title_as_comment, bool last_no_upload_tags, bool strip_metadata_enabled
-    ) {
-        this.pane_widget = new Gtk.Box(Gtk.Orientation.VERTICAL, 0);
-        this.last_category = last_category;
-        this.last_permission_level = last_permission_level;
-        this.last_photo_size = last_photo_size;
-        this.last_title_as_comment = last_title_as_comment;
-        this.last_no_upload_tags = last_no_upload_tags;
+    public PublishingOptionsPane(PiwigoPublisher publisher,
+                                 Category[] categories,
+                                 int last_category,
+                                 int last_permission_level,
+                                 int last_photo_size,
+                                 bool last_title_as_comment,
+                                 bool last_no_upload_tags,
+                                 bool strip_metadata_enabled) {
+        Object (resource_path : Resources.RESOURCE_PATH +
+                                "/piwigo_publishing_options_pane.ui",
+                connect_signals : true,
+                default_id : "publish_button",
+                last_category : last_category,
+                last_permission_level : last_permission_level,
+                last_photo_size : last_photo_size,
+                last_title_as_comment : last_title_as_comment,
+                last_no_upload_tags : last_no_upload_tags,
+                strip_metadata_enabled : strip_metadata_enabled,
+                existing_categories : new Gee.ArrayList<Category>.wrap (categories,
+                                                          Category.equal),
+                default_comment : get_common_comment_if_possible (publisher));
+    }
+
+    public override void constructed () {
+        base.constructed ();
+        var builder = this.get_builder ();
+
+        use_existing_radio = builder.get_object("use_existing_radio") as Gtk.RadioButton;
+        create_new_radio = builder.get_object("create_new_radio") as Gtk.RadioButton;
+        existing_categories_combo = builder.get_object("existing_categories_combo") as Gtk.ComboBoxText;
+        new_category_entry = builder.get_object ("new_category_entry") as Gtk.Entry;
+        within_existing_label = builder.get_object ("within_existing_label") as Gtk.Label;
+        within_existing_combo = builder.get_object ("within_existing_combo") as Gtk.ComboBoxText;
+
+        album_comment = builder.get_object ("album_comment") as Gtk.TextView;
+        album_comment.buffer = new Gtk.TextBuffer(null);
+        album_comment_label = builder.get_object ("album_comment_label") as Gtk.Label;
+
+        perms_combo = builder.get_object("perms_combo") as Gtk.ComboBoxText;
+        size_combo = builder.get_object("size_combo") as Gtk.ComboBoxText;
+
+        strip_metadata_check = builder.get_object("strip_metadata_check") as Gtk.CheckButton;
+        strip_metadata_check.set_active(strip_metadata_enabled);
+
+        title_as_comment_check = builder.get_object("title_as_comment_check") as Gtk.CheckButton;
+        title_as_comment_check.set_active(last_title_as_comment);
+
+        no_upload_tags_check = builder.get_object("no_upload_tags_check") as Gtk.CheckButton;
+        no_upload_tags_check.set_active(last_no_upload_tags);
+
+        logout_button = builder.get_object("logout_button") as Gtk.Button;
+        logout_button.clicked.connect(on_logout_button_clicked);
+
+        publish_button = builder.get_object("publish_button") as Gtk.Button;
+        publish_button.clicked.connect(on_publish_button_clicked);
+
+        use_existing_radio.clicked.connect(on_use_existing_radio_clicked);
+        create_new_radio.clicked.connect(on_create_new_radio_clicked);
+        new_category_entry.changed.connect(on_new_category_entry_changed);
+        within_existing_combo.changed.connect(on_existing_combo_changed);
 
-        try {
-            builder = new Gtk.Builder();
-            builder.add_from_resource (Resources.RESOURCE_PATH + "/piwigo_publishing_options_pane.ui");
-            builder.connect_signals(null);
-            Gtk.Alignment align = builder.get_object("alignment") as Gtk.Alignment;
-            
-            use_existing_radio = builder.get_object("use_existing_radio") as Gtk.RadioButton;
-            create_new_radio = builder.get_object("create_new_radio") as Gtk.RadioButton;
-            existing_categories_combo = builder.get_object("existing_categories_combo") as Gtk.ComboBoxText;
-            new_category_entry = builder.get_object ("new_category_entry") as Gtk.Entry;
-            within_existing_label = builder.get_object ("within_existing_label") as Gtk.Label;
-            within_existing_combo = builder.get_object ("within_existing_combo") as Gtk.ComboBoxText;
-
-            album_comment = builder.get_object ("album_comment") as Gtk.TextView;
-            album_comment.buffer = new Gtk.TextBuffer(null);
-            album_comment_label = builder.get_object ("album_comment_label") as Gtk.Label;
-
-            perms_combo = builder.get_object("perms_combo") as Gtk.ComboBoxText;
-            size_combo = builder.get_object("size_combo") as Gtk.ComboBoxText;
-
-            strip_metadata_check = builder.get_object("strip_metadata_check") as Gtk.CheckButton;
-            strip_metadata_check.set_active(strip_metadata_enabled);
-
-            title_as_comment_check = builder.get_object("title_as_comment_check") as Gtk.CheckButton;
-            title_as_comment_check.set_active(last_title_as_comment);
-
-            no_upload_tags_check = builder.get_object("no_upload_tags_check") as Gtk.CheckButton;
-            no_upload_tags_check.set_active(last_no_upload_tags);
-
-            logout_button = builder.get_object("logout_button") as Gtk.Button;
-            logout_button.clicked.connect(on_logout_button_clicked);
-
-            publish_button = builder.get_object("publish_button") as Gtk.Button;
-            publish_button.clicked.connect(on_publish_button_clicked);
-            
-            use_existing_radio.clicked.connect(on_use_existing_radio_clicked);
-            create_new_radio.clicked.connect(on_create_new_radio_clicked);
-            new_category_entry.changed.connect(on_new_category_entry_changed);
-            within_existing_combo.changed.connect(on_existing_combo_changed);
-
-            align.reparent(pane_widget);
-            pane_widget.set_child_packing(align, true, true, 0, Gtk.PackType.START);
-        } catch (Error e) {
-            warning("Could not load UI: %s", e.message);
-        }
-        
-        this.existing_categories = categories;
         this.perm_levels = create_perm_levels();
         this.photo_sizes = create_sizes();
-        this.album_comment.buffer.set_text(get_common_comment_if_possible(publisher));
-    }
-    
-    public Gtk.Widget get_default_widget() {
-        return publish_button;
+        this.album_comment.buffer.set_text(this.default_comment);
     }
-    
+
     private PermissionLevel[] create_perm_levels() {
         PermissionLevel[] result = new PermissionLevel[0];
 
@@ -1410,16 +1387,10 @@ internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
             )
         );
     }
-    
-    public Gtk.Widget get_widget() {
-        return pane_widget;
-    }
-    
-    public Spit.Publishing.DialogPane.GeometryOptions get_preferred_geometry() {
-        return Spit.Publishing.DialogPane.GeometryOptions.NONE;
-    }
-    
-    public void on_pane_installed() {
+
+    public override void on_pane_installed() {
+        base.on_pane_installed ();
+
         create_categories_combo();
         create_within_categories_combo();
         create_permissions_combo();
@@ -1428,8 +1399,8 @@ internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
         publish_button.can_default = true;
         update_publish_button_sensitivity();
     }
-    
-    private string get_common_comment_if_possible(PiwigoPublisher publisher) {
+
+    private static string get_common_comment_if_possible(PiwigoPublisher publisher) {
         // we have to determine whether all the publishing items
         // belong to the same event
         Spit.Publishing.Publishable[] publishables = publisher.get_host().get_publishables();
@@ -1462,7 +1433,7 @@ internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
         foreach (Category cat in existing_categories) {
             existing_categories_combo.append_text(cat.display_name);
         }
-        if (existing_categories.length == 0) {
+        if (existing_categories.is_empty) {
             // if no existing categories, disable the option to choose one
             existing_categories_combo.set_sensitive(false);
             use_existing_radio.set_sensitive(false);
@@ -1472,11 +1443,7 @@ internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
             new_category_entry.grab_focus();
         } else {
             int last_category_index = find_category_index(last_category);
-            if (last_category_index < 0) {
-                existing_categories_combo.set_active(0);
-            } else {
-                existing_categories_combo.set_active(last_category_index);
-            }
+            existing_categories_combo.set_active(last_category_index);
             new_category_entry.set_sensitive(false);
             album_comment.set_sensitive(false);
             album_comment_label.set_sensitive(false);
@@ -1520,13 +1487,10 @@ internal class PublishingOptionsPane : Spit.Publishing.DialogPane, Object {
             size_combo.set_active(last_size_index);
         }
     }
-    
-    public void on_pane_uninstalled() {
-    }
-    
+
     private int find_category_index(int category_id) {
-        int result = -1;
-        for(int i = 0; i < existing_categories.length; i++) {
+        int result = 0;
+        for(int i = 0; i < existing_categories.size; i++) {
             if (existing_categories[i].id == category_id) {
                 result = i;
                 break;