Add interface bounds to Impls

examples/column_view_datagrid/grid_cell/mod.rs

@@ -7,7 +7,8 @@ pub struct Entry {
 
 glib::wrapper! {
     pub struct GridCell(ObjectSubclass<imp::GridCell>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for GridCell {

examples/composite_dialog/my_app_window/mod.rs

@@ -2,11 +2,14 @@
 #[allow(deprecated)]
 mod imp;
 
-use gtk::{glib, prelude::*, subclass::prelude::*};
+use gtk::{gio, glib, prelude::*, subclass::prelude::*};
 
 glib::wrapper! {
     pub struct MyAppWindow(ObjectSubclass<imp::MyAppWindow>)
-        @extends gtk::Widget, gtk::Window, gtk::ApplicationWindow;
+        @extends gtk::Widget, gtk::Window, gtk::ApplicationWindow,
+        @implements gtk::Accessible, gio::ActionGroup, gio::ActionMap,
+        gtk::Buildable, gtk::ConstraintTarget, gtk::Native, gtk::Root,
+        gtk::ShortcutManager;
 }
 
 #[gtk::template_callbacks]

examples/composite_template/ex_application_window/mod.rs

@@ -5,7 +5,8 @@ use gtk::{gio, glib, prelude::*, subclass::prelude::*};
 glib::wrapper! {
     pub struct ExApplicationWindow(ObjectSubclass<imp::ExApplicationWindow>)
         @extends gtk::Widget, gtk::Window, gtk::ApplicationWindow,
-        @implements gio::ActionMap, gio::ActionGroup;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget,
+        gtk::Native, gtk::Root, gtk::ShortcutManager, gio::ActionMap, gio::ActionGroup;
 }
 
 impl ExApplicationWindow {

examples/composite_template/ex_menu_button/mod.rs

@@ -4,5 +4,6 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct ExMenuButton(ObjectSubclass<imp::ExMenuButton>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }

examples/confetti_snapshot_animation/confetti_widget/mod.rs

@@ -9,7 +9,9 @@ use gtk::{
 use crate::{AnimatedExplosion, ExplosionParameters};
 
 glib::wrapper! {
-    pub struct ConfettiWidget(ObjectSubclass<imp::ConfettiWidget>) @implements gtk::Widget;
+    pub struct ConfettiWidget(ObjectSubclass<imp::ConfettiWidget>)
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for ConfettiWidget {

examples/custom_buildable/custom_buildable/mod.rs

@@ -5,7 +5,7 @@ use gtk::{glib, prelude::*, subclass::prelude::*};
 glib::wrapper! {
     pub struct CustomBuildable(ObjectSubclass<imp::CustomBuildable>)
         @extends gtk::Widget,
-        @implements gtk::Buildable;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl CustomBuildable {

examples/custom_editable/custom_editable/mod.rs

@@ -7,7 +7,7 @@ use crate::custom_tag::CustomTag;
 glib::wrapper! {
     pub struct CustomEditable(ObjectSubclass<imp::CustomEditable>)
         @extends gtk::Widget,
-        @implements gtk::Editable;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget, gtk::Editable;
 }
 
 impl Default for CustomEditable {

examples/custom_editable/custom_tag/mod.rs

@@ -4,7 +4,8 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct CustomTag(ObjectSubclass<imp::CustomTag>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl CustomTag {

examples/custom_layout_manager/custom_layout_child/mod.rs

@@ -4,7 +4,8 @@ use gtk::{gdk, glib};
 
 glib::wrapper! {
     pub struct CustomLayoutChild(ObjectSubclass<imp::CustomLayoutChild>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl CustomLayoutChild {

examples/custom_layout_manager/simple_widget/mod.rs

@@ -10,7 +10,8 @@ use crate::custom_layout::CustomLayout;
 
 glib::wrapper! {
     pub struct SimpleWidget(ObjectSubclass<imp::SimpleWidget>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for SimpleWidget {

examples/custom_orientable/custom_orientable/mod.rs

@@ -5,7 +5,7 @@ use gtk::glib;
 glib::wrapper! {
     pub struct CustomOrientable(ObjectSubclass<imp::CustomOrientable>)
         @extends gtk::Widget,
-        @implements gtk::Orientable;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget, gtk::Orientable;
 }
 
 impl Default for CustomOrientable {

examples/custom_widget/ex_button/mod.rs

@@ -5,7 +5,7 @@ use gtk::glib;
 glib::wrapper! {
     pub struct ExButton(ObjectSubclass<imp::ExButton>)
         @extends gtk::Widget,
-        @implements gtk::Accessible;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for ExButton {

examples/femtovg_area/femtovg_area/mod.rs

@@ -4,7 +4,8 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct FemtoVGArea(ObjectSubclass<imp::FemtoVGArea>)
-        @extends gtk::Widget, gtk::GLArea;
+        @extends gtk::Widget, gtk::GLArea,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for FemtoVGArea {

examples/gif_paintable/gif_paintable_window/mod.rs

@@ -7,7 +7,8 @@ use crate::gif_paintable::GifPaintable;
 glib::wrapper! {
     pub struct GifPaintableWindow(ObjectSubclass<imp::GifPaintableWindow>)
         @extends gtk::Widget, gtk::Window, gtk::ApplicationWindow,
-        @implements gio::ActionMap, gio::ActionGroup;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget,
+        gtk::Native, gtk::Root, gtk::ShortcutManager, gio::ActionMap, gio::ActionGroup;
 }
 
 impl GifPaintableWindow {

examples/glium_gl_area/glium_gl_area/mod.rs

@@ -4,7 +4,8 @@ use gtk::{gdk, glib, prelude::*};
 
 glib::wrapper! {
     pub struct GliumGLArea(ObjectSubclass<imp::GliumGLArea>)
-        @extends gtk::GLArea, gtk::Widget;
+        @extends gtk::GLArea, gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for GliumGLArea {

examples/list_box_model/list_box_row/mod.rs

@@ -6,7 +6,8 @@ use crate::row_data::RowData;
 
 glib::wrapper! {
     pub struct ListBoxRow(ObjectSubclass<imp::ListBoxRow>)
-        @extends gtk::Widget, gtk::ListBoxRow;
+        @extends gtk::Widget, gtk::ListBoxRow,
+        @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl ListBoxRow {

examples/list_box_model/main.rs

@@ -45,21 +45,13 @@ fn build_ui(application: &gtk::Application) {
     // The gtk::ListBoxRow can contain any possible widgets.
 
     let listbox = gtk::ListBox::new();
-    listbox.bind_model(
-        Some(&model),
-        clone!(
-            #[weak]
-            window,
-            #[upgrade_or_panic]
-            move |item| {
-                ListBoxRow::new(
-                    item.downcast_ref::<RowData>()
-                        .expect("RowData is of wrong type"),
-                )
-                .upcast::<gtk::Widget>()
-            }
-        ),
-    );
+    listbox.bind_model(Some(&model), move |item| {
+        ListBoxRow::new(
+            item.downcast_ref::<RowData>()
+                .expect("RowData is of wrong type"),
+        )
+        .upcast::<gtk::Widget>()
+    });
 
     let scrolled_window = gtk::ScrolledWindow::builder()
         .hscrollbar_policy(gtk::PolicyType::Never) // Disable horizontal scrolling

examples/list_view_apps_launcher/application_row/mod.rs

@@ -4,7 +4,8 @@ use gtk::{gio, glib, prelude::*, subclass::prelude::*};
 
 glib::wrapper! {
     pub struct ApplicationRow(ObjectSubclass<imp::ApplicationRow>)
-        @extends gtk::Widget, gtk::Box;
+        @extends gtk::Widget, gtk::Box,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for ApplicationRow {

examples/rotation_bin/rotation_bin/mod.rs

@@ -46,7 +46,8 @@ impl From<Rotation> for f32 {
 
 glib::wrapper! {
     pub struct RotationBin(ObjectSubclass<imp::RotationBin>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for RotationBin {

examples/scale_bin/scale_bin/mod.rs

@@ -4,7 +4,8 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct ScaleBin(ObjectSubclass<imp::ScaleBin>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for ScaleBin {

examples/squares/squares_widget/mod.rs

@@ -4,7 +4,8 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct SquaresWidget(ObjectSubclass<imp::SquaresWidget>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for SquaresWidget {

examples/squeezer_bin/squeezer_bin/mod.rs

@@ -4,7 +4,8 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct SqueezerBin(ObjectSubclass<imp::SqueezerBin>)
-        @extends gtk::Widget;
+        @extends gtk::Widget,
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for SqueezerBin {

examples/video_player/video_player_window/mod.rs

@@ -5,7 +5,8 @@ use gtk::{gio, glib, prelude::*, subclass::prelude::*};
 glib::wrapper! {
     pub struct VideoPlayerWindow(ObjectSubclass<imp::VideoPlayerWindow>)
         @extends gtk::Widget, gtk::Window, gtk::ApplicationWindow,
-        @implements gio::ActionMap, gio::ActionGroup;
+        @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget,
+        gtk::Native, gtk::Root, gtk::ShortcutManager, gio::ActionMap, gio::ActionGroup;
 }
 
 impl VideoPlayerWindow {

examples/virtual_methods/base_button/mod.rs

@@ -11,7 +11,8 @@ pub type PinnedFuture<T> = Pin<Box<dyn Future<Output = T>>>;
 glib::wrapper! {
     /// Public type for the `BaseButton` instances.
     pub struct BaseButton(ObjectSubclass<imp::BaseButton>)
-        @extends gtk::Widget, gtk::Button;
+        @extends gtk::Widget, gtk::Button,
+        @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for BaseButton {

examples/virtual_methods/derived_button/mod.rs

@@ -4,7 +4,8 @@ use gtk::glib;
 
 glib::wrapper! {
     pub struct DerivedButton(ObjectSubclass<imp::DerivedButton>)
-        @extends gtk::Widget, gtk::Button, crate::base_button::BaseButton;
+        @extends gtk::Widget, gtk::Button, crate::base_button::BaseButton,
+        @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl Default for DerivedButton {

gtk4-macros/src/lib.rs

@@ -132,7 +132,9 @@ pub fn include_blueprint(input: TokenStream) -> TokenStream {
 /// }
 ///
 /// glib::wrapper! {
-///     pub struct MyWidget(ObjectSubclass<imp::MyWidget>) @extends gtk::Widget, gtk::Box;
+///     pub struct MyWidget(ObjectSubclass<imp::MyWidget>)
+///     @extends gtk::Widget, gtk::Box,
+///     @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 /// }
 ///
 /// impl MyWidget {
@@ -197,7 +199,9 @@ pub fn include_blueprint(input: TokenStream) -> TokenStream {
 /// }
 ///
 /// glib::wrapper! {
-///     pub struct MyWidget(ObjectSubclass<imp::MyWidget>) @extends gtk::Widget;
+///     pub struct MyWidget(ObjectSubclass<imp::MyWidget>)
+///     @extends gtk::Widget,
+///     @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 /// }
 /// ```
 #[proc_macro_derive(CompositeTemplate, attributes(template, template_child))]
@@ -351,7 +355,9 @@ pub fn composite_template_derive(input: TokenStream) -> TokenStream {
 /// }
 ///
 /// glib::wrapper! {
-///     pub struct MyWidget(ObjectSubclass<imp::MyWidget>) @extends gtk::Widget, gtk::Box;
+///     pub struct MyWidget(ObjectSubclass<imp::MyWidget>)
+///     @extends gtk::Widget, gtk::Box,
+///     @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 /// }
 ///
 /// #[gtk::template_callbacks]

gtk4-macros/tests/templates.rs

@@ -53,7 +53,9 @@ mod imp {
 }
 
 glib::wrapper! {
-    pub struct MyWidget(ObjectSubclass<imp::MyWidget>) @extends gtk::Widget;
+    pub struct MyWidget(ObjectSubclass<imp::MyWidget>)
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 #[gtk::test]
@@ -145,7 +147,9 @@ mod imp2 {
 }
 
 glib::wrapper! {
-    pub struct MyWidget2(ObjectSubclass<imp2::MyWidget2>) @extends gtk::Widget;
+    pub struct MyWidget2(ObjectSubclass<imp2::MyWidget2>)
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 #[gtk::test]
@@ -192,7 +196,9 @@ mod imp3 {
 }
 
 glib::wrapper! {
-    pub struct MyWidget3(ObjectSubclass<imp3::MyWidget3>) @extends gtk::Widget;
+    pub struct MyWidget3(ObjectSubclass<imp3::MyWidget3>)
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 #[gtk::test]
@@ -248,7 +254,9 @@ mod imp4 {
 
 #[cfg(feature = "blueprint")]
 glib::wrapper! {
-    pub struct MyWidget4(ObjectSubclass<imp4::MyWidget4>) @extends gtk::Widget;
+    pub struct MyWidget4(ObjectSubclass<imp4::MyWidget4>)
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 #[gtk::test]
@@ -295,7 +303,9 @@ mod imp5 {
 
 #[cfg(feature = "blueprint")]
 glib::wrapper! {
-    pub struct MyWidget5(ObjectSubclass<imp5::MyWidget5>) @extends gtk::Widget;
+    pub struct MyWidget5(ObjectSubclass<imp5::MyWidget5>)
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 #[gtk::test]
@@ -348,5 +358,6 @@ mod imp6 {
 
 glib::wrapper! {
     pub struct TestWidget(ObjectSubclass<imp6::TestWidget>)
-    @extends gtk::Widget;
+    @extends gtk::Widget,
+    @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }

gtk4/src/subclass/application_window.rs

@@ -6,7 +6,9 @@
 use crate::{prelude::*, subclass::prelude::*, ApplicationWindow};
 
 pub trait ApplicationWindowImpl:
-    WindowImpl + ObjectSubclass<Type: IsA<ApplicationWindow>> + 'static
+    WindowImpl
+    + ObjectSubclass<Type: IsA<ApplicationWindow> + IsA<gio::ActionGroup> + IsA<gio::ActionMap>>
+    + 'static
 {
 }
 

gtk4/src/subclass/button.rs

@@ -5,9 +5,9 @@
 
 use glib::translate::*;
 
-use crate::{ffi, prelude::*, subclass::prelude::*, Button};
+use crate::{ffi, prelude::*, subclass::prelude::*, Actionable, Button};
 
-pub trait ButtonImpl: WidgetImpl + ObjectSubclass<Type: IsA<Button>> {
+pub trait ButtonImpl: WidgetImpl + ObjectSubclass<Type: IsA<Button> + IsA<Actionable>> {
     fn activate(&self) {
         self.parent_activate()
     }