Form Validation Message

data/Application.css

@@ -1,9 +1,23 @@
 @keyframes fancy-turn {
-    0%   { -gtk-icon-transform: rotate(0deg);   }
-    25%  { -gtk-icon-transform: rotate(-30deg); }
-    50%  { -gtk-icon-transform: rotate(0deg);   }
-    75%  { -gtk-icon-transform: rotate(30deg);  }
-    100% { -gtk-icon-transform: rotate(0deg);   }
+    0% {
+        -gtk-icon-transform: rotate(0deg);
+    }
+
+    25% {
+        -gtk-icon-transform: rotate(-30deg);
+    }
+
+    50% {
+        -gtk-icon-transform: rotate(0deg);
+    }
+
+    75% {
+        -gtk-icon-transform: rotate(30deg);
+    }
+
+    100% {
+        -gtk-icon-transform: rotate(0deg);
+    }
 }
 
 .fancy-turn.animation {
@@ -18,4 +32,4 @@
 
 .fw-500 {
     font-weight: 500;
-}
+}

meson.build

@@ -46,6 +46,7 @@ executable(
     'src/Views/Developer.vala',
     'src/Views/Form.vala',
     'src/Views/Success.vala',
+    'src/Widgets/InvalidLabel.vala',
     'src/Widgets/Stepper.vala',
     dependencies: deps,
     install: true

po/POTFILES

@@ -3,4 +3,5 @@ src/MainWindow.vala
 src/Views/Developer.vala
 src/Views/Form.vala
 src/Views/Success.vala
+src/Widgets/InvalidLabel.vala
 src/Widgets/Stepper.vala

src/MainWindow.vala

@@ -85,9 +85,15 @@ public class MainWindow : Gtk.ApplicationWindow {
         });
         main_box.append (form_box);
 
+        var scrolled_window = new Gtk.ScrolledWindow () {
+            child = main_box,
+            vscrollbar_policy = NEVER,
+            hscrollbar_policy = NEVER
+        };
+
         var toolbar_view = new Adw.ToolbarView ();
         toolbar_view.add_top_bar (headerbar);
-        toolbar_view.content = main_box;
+        toolbar_view.content = scrolled_window;
 
         child = toolbar_view;
 
@@ -126,6 +132,7 @@ public class MainWindow : Gtk.ApplicationWindow {
 
             form_view.developer_name = name;
             form_view.developer_email = email;
+            form_view.focus_name ();
         });
 
         success_view.back.connect (() => {

src/Views/Developer.vala

@@ -10,6 +10,12 @@ public class Views.Developer : Adw.Bin {
 
     public signal void next (string name, string email);
 
+    public bool is_valid {
+        get {
+            return name_entry.is_valid && email_entry.is_valid;
+        }
+    }
+
     construct {
         Regex? email_regex = null;
         try {
@@ -23,11 +29,19 @@ public class Views.Developer : Adw.Bin {
             text = GLib.Environment.get_real_name ()
         };
 
+        var name_invalid = new Widgets.InvalidLabel () {
+            text = _("This field is required")
+        };
+
         email_entry = new Granite.ValidatedEntry () {
             regex = email_regex,
             margin_top = 6
         };
 
+        var email_invalid = new Widgets.InvalidLabel () {
+            text = _("The email is invalid")
+        };
+
         next_button = new Gtk.Button.with_label (_("Next")) {
             margin_bottom = 32,
             sensitive = false,
@@ -43,8 +57,10 @@ public class Views.Developer : Adw.Bin {
         });
         form_box.append (new Granite.HeaderLabel (_("Name:")));
         form_box.append (name_entry);
+        form_box.append (name_invalid);
         form_box.append (new Granite.HeaderLabel (_("Email:")));
         form_box.append (email_entry);
+        form_box.append (email_invalid);
         form_box.append (next_button);
 
         var content_box = new Adw.Bin () {
@@ -56,16 +72,29 @@ public class Views.Developer : Adw.Bin {
 
         child = content_box;
 
-        name_entry.changed.connect (check_valid);
-        email_entry.changed.connect (check_valid);
+        name_entry.changed.connect (() => {
+            check_valid ();
+            name_invalid.reveal_child = !name_entry.is_valid;
+        });
 
-        next_button.clicked.connect (() => {
-            next (name_entry.text, email_entry.text);
+        email_entry.changed.connect (() => {
+            check_valid ();
+            email_invalid.reveal_child = !email_entry.is_valid;
         });
+
+        name_entry.activate.connect (go_next);
+        email_entry.activate.connect (go_next);
+        next_button.clicked.connect (go_next);
+    }
+
+    private void go_next () {
+        if (is_valid) {
+            next (name_entry.text, email_entry.text);
+        }
     }
 
     private void check_valid () {
-        next_button.sensitive = name_entry.is_valid && email_entry.is_valid;
+        next_button.sensitive = is_valid;
     }
 
     public void reset_form () {

src/Views/Form.vala

@@ -16,6 +16,12 @@ public class Views.Form : Adw.Bin {
     public string developer_name { get; set; }
     public string developer_email { get; set; }
 
+    public bool is_valid {
+        get {
+            return project_name_entry.is_valid && identifier_entry.is_valid && location_entry.text.length > 0;
+        }
+    }
+
     construct {
         Regex? project_name_regex = null;
         Regex? identifier_regex = null;
@@ -26,31 +32,63 @@ public class Views.Form : Adw.Bin {
             critical (e.message);
         }
 
+        var project_name_header = new Granite.HeaderLabel (_("Project Name:")) {
+            valign = CENTER
+        };
+
+        var project_name_info = new Gtk.MenuButton () {
+            can_focus = false,
+            hexpand = true,
+            halign = END,
+            icon_name = "dialog-information-symbolic",
+            popover = build_info_popover (_("A unique name that is used for the project folder and other resources. The name should be in lower case without spaces and should not start with a number"))
+        };
+        project_name_info.add_css_class (Granite.STYLE_CLASS_DIM_LABEL);
+        project_name_info.add_css_class (Granite.STYLE_CLASS_FLAT);
+
+        var project_name_box = new Gtk.Box (Gtk.Orientation.HORIZONTAL, 0) {
+            margin_top = 12
+        };
+        project_name_box.append (project_name_header);
+        project_name_box.append (project_name_info);
+
         project_name_entry = new Granite.ValidatedEntry () {
             regex = project_name_regex,
             margin_top = 6
         };
 
-        var project_name_description = new Gtk.Label (_("A unique name that is used for the project folder and other resources. The name should be in lower case without spaces and should not start with a number.")) {
-            wrap = true,
-            xalign = 0,
-            margin_top = 3
+        var project_name_invalid = new Widgets.InvalidLabel () {
+            text = _("Project name must start with a lowercase letter and contain only letters and numbers")
         };
-        project_name_description.add_css_class (Granite.STYLE_CLASS_DIM_LABEL);
-        project_name_description.add_css_class (Granite.STYLE_CLASS_SMALL_LABEL);
+
+        var identifier_header = new Granite.HeaderLabel (_("Organization Identifier:")) {
+            valign = CENTER
+        };
+
+        var identifier_info = new Gtk.MenuButton () {
+            can_focus = false,
+            hexpand = true,
+            halign = END,
+            icon_name = "dialog-information-symbolic",
+            popover = build_info_popover (_("A reverse domain-name identifier used to identify the application, such as 'io.github.username'. It may not contain dashes"))
+        };
+        identifier_info.add_css_class (Granite.STYLE_CLASS_DIM_LABEL);
+        identifier_info.add_css_class (Granite.STYLE_CLASS_FLAT);
+
+        var identifier_box = new Gtk.Box (Gtk.Orientation.HORIZONTAL, 0) {
+            margin_top = 12
+        };
+        identifier_box.append (identifier_header);
+        identifier_box.append (identifier_info);
 
         identifier_entry = new Granite.ValidatedEntry () {
             regex = identifier_regex,
             margin_top = 6
         };
 
-        var identifier_description = new Gtk.Label (_("A reverse domain-name identifier used to identify the application, such as 'io.github.username'. It may not contain dashes.")) {
-            wrap = true,
-            xalign = 0,
-            margin_top = 3
+        var identifier_invalid = new Widgets.InvalidLabel () {
+            text = _("App ID must start with a lowercase letter, use dots to separate parts, contain only letters and numbers, and replace hyphens (-) with underscores (_)")
         };
-        identifier_description.add_css_class (Granite.STYLE_CLASS_DIM_LABEL);
-        identifier_description.add_css_class (Granite.STYLE_CLASS_SMALL_LABEL);
 
         application_id_entry = new Gtk.Entry () {
             margin_top = 6,
@@ -92,6 +130,7 @@ public class Views.Form : Adw.Bin {
             vexpand = true,
             valign = END,
             margin_bottom = 32,
+            margin_top = 12
         };
         buttons_box.append (back_button);
         buttons_box.append (create_button);
@@ -101,12 +140,12 @@ public class Views.Form : Adw.Bin {
             halign = START,
             css_classes = { Granite.STYLE_CLASS_H1_LABEL }
         });
-        form_box.append (new Granite.HeaderLabel (_("Project Name:")));
+        form_box.append (project_name_box);
         form_box.append (project_name_entry);
-        //  form_box.append (project_name_description);
-        form_box.append (new Granite.HeaderLabel (_("Organization Identifier:")));
+        form_box.append (project_name_invalid);
+        form_box.append (identifier_box);
         form_box.append (identifier_entry);
-        //  form_box.append (identifier_description);
+        form_box.append (identifier_invalid);
         form_box.append (new Granite.HeaderLabel (_("Application ID:")));
         form_box.append (application_id_entry);
         form_box.append (new Granite.HeaderLabel (_("Location:")));
@@ -133,16 +172,18 @@ public class Views.Form : Adw.Bin {
 
         project_name_entry.changed.connect (() => {
             application_id_entry.text = identifier_entry.text + "." + project_name_entry.text;
-            create_button.sensitive = project_name_entry.is_valid && identifier_entry.is_valid && location_entry.text.length > 0;
+            create_button.sensitive = is_valid;
+            project_name_invalid.reveal_child = !project_name_entry.is_valid;
         });
 
         identifier_entry.changed.connect (() => {
             application_id_entry.text = identifier_entry.text + "." + project_name_entry.text;
-            create_button.sensitive = project_name_entry.is_valid && identifier_entry.is_valid && location_entry.text.length > 0;
+            create_button.sensitive = is_valid;
+            identifier_invalid.reveal_child = !identifier_entry.is_valid;
         });
 
         location_entry.changed.connect (() => {
-            create_button.sensitive = project_name_entry.is_valid && identifier_entry.is_valid && location_entry.text.length > 0;
+            create_button.sensitive = is_valid;
         });
 
         location_entry.icon_release.connect ((icon_pos) => {
@@ -281,7 +322,7 @@ public class Views.Form : Adw.Bin {
         }
     }
 
-    void rename_file (string old_name, string new_name) {
+    private void rename_file (string old_name, string new_name) {
         try {
             GLib.File old_file = GLib.File.new_for_path (old_name);
             GLib.File new_file = GLib.File.new_for_path (new_name);
@@ -290,4 +331,26 @@ public class Views.Form : Adw.Bin {
             debug (e.message);
         }
     }
+
+    private Gtk.Popover build_info_popover (string text) {
+        var label = new Gtk.Label (text) {
+            wrap = true,
+            margin_top = 6,
+            margin_bottom = 6,
+            margin_start = 6,
+            margin_end = 6,
+            max_width_chars = 24,
+            justify = CENTER
+        };
+
+        var popover = new Gtk.Popover () {
+            child = label
+        };
+
+        return popover;
+    }
+
+    public void focus_name () {
+        project_name_entry.grab_focus ();
+    }
 }

src/Widgets/InvalidLabel.vala

@@ -0,0 +1,45 @@
+/*
+* SPDX-License-Identifier: GPL-3.0-or-later
+* SPDX-FileCopyrightText: 2024 Alain <[email protected]>
+*/
+
+public class Widgets.InvalidLabel : Gtk.Grid {
+    private Gtk.Label text_label;
+    private Gtk.Revealer label_revealer;
+
+    public string text {
+        set {
+            text_label.label = value;
+        }
+
+        get {
+            return text_label.label;
+        }
+    }
+
+    public bool reveal_child {
+        set {
+            label_revealer.reveal_child = value;
+        }
+
+        get {
+            return label_revealer.reveal_child;
+        }
+    }
+
+    construct {
+        text_label = new Gtk.Label (null) {
+            xalign = 0,
+            margin_top = 6,
+            wrap = true
+        };
+        text_label.add_css_class ("error");
+        text_label.add_css_class (Granite.STYLE_CLASS_SMALL_LABEL);
+
+        label_revealer = new Gtk.Revealer () {
+            child = text_label
+        };
+
+        attach (label_revealer, 0, 0, 1, 1);
+    }
+}