apprt/gtk-ng: hook up adw < 1.5 support

src/apprt/gtk-ng/build/gresource.zig

@@ -30,6 +30,7 @@ pub const icon_sizes: []const comptime_int = &.{ 16, 32, 128, 256, 512, 1024 };
 ///
 /// These will be asserted to exist at runtime.
 pub const blueprints: []const Blueprint = &.{
+    .{ .major = 1, .minor = 2, .name = "config-errors-dialog" },
     .{ .major = 1, .minor = 5, .name = "config-errors-dialog" },
     .{ .major = 1, .minor = 5, .name = "window" },
 };

src/apprt/gtk-ng/class/config_errors_dialog.zig

@@ -74,14 +74,16 @@ pub const ConfigErrorsDialog = extern struct {
     pub fn present(self: *Self, parent: ?*gtk.Widget) void {
         switch (Parent) {
             adw.AlertDialog => self.as(adw.Dialog).present(parent),
-            else => unreachable,
+            adw.MessageDialog => self.as(gtk.Window).present(),
+            else => comptime unreachable,
         }
     }
 
     pub fn close(self: *Self) void {
         switch (Parent) {
             adw.AlertDialog => self.as(adw.Dialog).forceClose(),
-            else => unreachable,
+            adw.MessageDialog => self.as(gtk.Window).close(),
+            else => comptime unreachable,
         }
     }
 
@@ -160,7 +162,13 @@ pub const ConfigErrorsDialog = extern struct {
                         .name = "config-errors-dialog",
                     }),
 
-                    else => unreachable,
+                    adw.MessageDialog => comptime gresource.blueprint(.{
+                        .major = 1,
+                        .minor = 2,
+                        .name = "config-errors-dialog",
+                    }),
+
+                    else => comptime unreachable,
                 },
             );
 

src/apprt/gtk-ng/ui/1.2/config-errors-dialog.blp

@@ -0,0 +1,27 @@
+using Gtk 4.0;
+using Adw 1;
+
+template $GhosttyConfigErrorsDialog: Adw.MessageDialog {
+  heading: _("Configuration Errors");
+  body: _("One or more configuration errors were found. Please review the errors below, and either reload your configuration or ignore these errors.");
+
+  responses [
+    ignore: _("Ignore"),
+    reload: _("Reload Configuration") suggested,
+  ]
+
+  extra-child: ScrolledWindow {
+    min-content-width: 500;
+    min-content-height: 100;
+
+    TextView {
+      editable: false;
+      cursor-visible: false;
+      top-margin: 8;
+      bottom-margin: 8;
+      left-margin: 8;
+      right-margin: 8;
+      buffer: bind (template.config as <$GhosttyConfig>).diagnostics-buffer;
+    }
+  };
+}