Add image and hash snapshot-based testing to `iced_test`

4 files changed, 23 insertions, 26 deletions

diff --git a/src/application.rs b/src/application.rs
index 2ba764be..c79ed62b 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -31,6 +31,7 @@
 //! }
 //! ```
 use crate::program::{self, Program};
+use crate::theme;
 use crate::window;
 use crate::{
     Element, Executor, Font, Result, Settings, Size, Subscription, Task,
@@ -38,8 +39,6 @@ use crate::{
 
 use std::borrow::Cow;
 
-pub use crate::shell::program::{Appearance, DefaultStyle};
-
 /// Creates an iced [`Application`] given its title, update, and view logic.
 ///
 /// # Example
@@ -76,7 +75,7 @@ pub fn application<State, Message, Theme, Renderer>(
 where
     State: 'static,
     Message: Send + std::fmt::Debug + 'static,
-    Theme: Default + DefaultStyle,
+    Theme: Default + theme::Base,
     Renderer: program::Renderer,
 {
     use std::marker::PhantomData;
@@ -94,7 +93,7 @@ where
         for Instance<State, Message, Theme, Renderer, Update, View>
     where
         Message: Send + std::fmt::Debug + 'static,
-        Theme: Default + DefaultStyle,
+        Theme: Default + theme::Base,
         Renderer: program::Renderer,
         Update: self::Update<State, Message>,
         View: for<'a> self::View<'a, State, Message, Theme, Renderer>,
@@ -352,7 +351,7 @@ impl<P: Program> Application<P> {
     /// Sets the style logic of the [`Application`].
     pub fn style(
         self,
-        f: impl Fn(&P::State, &P::Theme) -> Appearance,
+        f: impl Fn(&P::State, &P::Theme) -> theme::Style,
     ) -> Application<
         impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
     > {
diff --git a/src/daemon.rs b/src/daemon.rs
index 81254bf9..fd6d0278 100644
--- a/src/daemon.rs
+++ b/src/daemon.rs
@@ -1,13 +1,12 @@
 //! Create and run daemons that run in the background.
 use crate::application;
 use crate::program::{self, Program};
+use crate::theme;
 use crate::window;
 use crate::{Element, Executor, Font, Result, Settings, Subscription, Task};
 
 use std::borrow::Cow;
 
-pub use crate::shell::program::{Appearance, DefaultStyle};
-
 /// Creates an iced [`Daemon`] given its title, update, and view logic.
 ///
 /// A [`Daemon`] will not open a window by default, but will run silently
@@ -26,7 +25,7 @@ pub fn daemon<State, Message, Theme, Renderer>(
 where
     State: 'static,
     Message: Send + std::fmt::Debug + 'static,
-    Theme: Default + DefaultStyle,
+    Theme: Default + theme::Base,
     Renderer: program::Renderer,
 {
     use std::marker::PhantomData;
@@ -44,7 +43,7 @@ where
         for Instance<State, Message, Theme, Renderer, Update, View>
     where
         Message: Send + std::fmt::Debug + 'static,
-        Theme: Default + DefaultStyle,
+        Theme: Default + theme::Base,
         Renderer: program::Renderer,
         Update: application::Update<State, Message>,
         View: for<'a> self::View<'a, State, Message, Theme, Renderer>,
@@ -201,7 +200,7 @@ impl<P: Program> Daemon<P> {
     /// Sets the style logic of the [`Daemon`].
     pub fn style(
         self,
-        f: impl Fn(&P::State, &P::Theme) -> Appearance,
+        f: impl Fn(&P::State, &P::Theme) -> theme::Style,
     ) -> Daemon<
         impl Program<State = P::State, Message = P::Message, Theme = P::Theme>,
     > {
diff --git a/src/lib.rs b/src/lib.rs
index d7628ea1..e7486909 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -688,7 +688,7 @@ pub fn run<State, Message, Theme, Renderer>(
 where
     State: Default + 'static,
     Message: std::fmt::Debug + Send + 'static,
-    Theme: Default + program::DefaultStyle + 'static,
+    Theme: Default + theme::Base + 'static,
     Renderer: program::Renderer + 'static,
 {
     application(title, update, view).run()
diff --git a/src/program.rs b/src/program.rs
index 94cb9a7d..ace4da74 100644
--- a/src/program.rs
+++ b/src/program.rs
@@ -1,11 +1,10 @@
 use crate::core::text;
 use crate::graphics::compositor;
 use crate::shell;
+use crate::theme;
 use crate::window;
 use crate::{Element, Executor, Result, Settings, Subscription, Task};
 
-pub use crate::shell::program::{Appearance, DefaultStyle};
-
 /// The internal definition of a [`Program`].
 ///
 /// You should not need to implement this trait directly. Instead, use the
@@ -19,7 +18,7 @@ pub trait Program: Sized {
     type Message: Send + std::fmt::Debug + 'static;
 
     /// The theme of the program.
-    type Theme: Default + DefaultStyle;
+    type Theme: Default + theme::Base;
 
     /// The renderer of the program.
     type Renderer: Renderer;
@@ -51,11 +50,11 @@ pub trait Program: Sized {
     }
 
     fn theme(&self, _state: &Self::State, _window: window::Id) -> Self::Theme {
-        Self::Theme::default()
+        <Self::Theme as Default>::default()
     }
 
-    fn style(&self, _state: &Self::State, theme: &Self::Theme) -> Appearance {
-        DefaultStyle::default_style(theme)
+    fn style(&self, _state: &Self::State, theme: &Self::Theme) -> theme::Style {
+        theme::Base::base(theme)
     }
 
     fn scale_factor(&self, _state: &Self::State, _window: window::Id) -> f64 {
@@ -153,7 +152,7 @@ pub trait Program: Sized {
                 self.program.theme(&self.state, window)
             }
 
-            fn style(&self, theme: &Self::Theme) -> Appearance {
+            fn style(&self, theme: &Self::Theme) -> theme::Style {
                 self.program.style(&self.state, theme)
             }
 
@@ -252,7 +251,7 @@ pub fn with_title<P: Program>(
             &self,
             state: &Self::State,
             theme: &Self::Theme,
-        ) -> Appearance {
+        ) -> theme::Style {
             self.program.style(state, theme)
         }
 
@@ -322,7 +321,7 @@ pub fn with_subscription<P: Program>(
             &self,
             state: &Self::State,
             theme: &Self::Theme,
-        ) -> Appearance {
+        ) -> theme::Style {
             self.program.style(state, theme)
         }
 
@@ -395,7 +394,7 @@ pub fn with_theme<P: Program>(
             &self,
             state: &Self::State,
             theme: &Self::Theme,
-        ) -> Appearance {
+        ) -> theme::Style {
             self.program.style(state, theme)
         }
 
@@ -409,7 +408,7 @@ pub fn with_theme<P: Program>(
 
 pub fn with_style<P: Program>(
     program: P,
-    f: impl Fn(&P::State, &P::Theme) -> Appearance,
+    f: impl Fn(&P::State, &P::Theme) -> theme::Style,
 ) -> impl Program<State = P::State, Message = P::Message, Theme = P::Theme> {
     struct WithStyle<P, F> {
         program: P,
@@ -418,7 +417,7 @@ pub fn with_style<P: Program>(
 
     impl<P: Program, F> Program for WithStyle<P, F>
     where
-        F: Fn(&P::State, &P::Theme) -> Appearance,
+        F: Fn(&P::State, &P::Theme) -> theme::Style,
     {
         type State = P::State;
         type Message = P::Message;
@@ -430,7 +429,7 @@ pub fn with_style<P: Program>(
             &self,
             state: &Self::State,
             theme: &Self::Theme,
-        ) -> Appearance {
+        ) -> theme::Style {
             (self.style)(state, theme)
         }
 
@@ -535,7 +534,7 @@ pub fn with_scale_factor<P: Program>(
             &self,
             state: &Self::State,
             theme: &Self::Theme,
-        ) -> Appearance {
+        ) -> theme::Style {
             self.program.style(state, theme)
         }
 
@@ -609,7 +608,7 @@ pub fn with_executor<P: Program, E: Executor>(
             &self,
             state: &Self::State,
             theme: &Self::Theme,
-        ) -> Appearance {
+        ) -> theme::Style {
             self.program.style(state, theme)
         }