1 files changed, 97 insertions, 16 deletions

diff --git a/native/src/renderer/null.rs b/native/src/renderer/null.rs
index 182f033a..0fcce5ad 100644
--- a/native/src/renderer/null.rs
+++ b/native/src/renderer/null.rs
@@ -1,20 +1,33 @@
 use crate::{
-    button, checkbox, column, radio, row, scrollable, text, text_input,
-    Background, Color, Element, Font, HorizontalAlignment, Layout, Point,
+    button, checkbox, column, progress_bar, radio, row, scrollable, slider,
+    text, text_input, Color, Element, Font, HorizontalAlignment, Layout, Point,
     Rectangle, Renderer, Size, VerticalAlignment,
 };
 
 /// A renderer that does nothing.
+///
+/// It can be useful if you are writing tests!
 #[derive(Debug, Clone, Copy)]
 pub struct Null;
 
+impl Null {
+    /// Creates a new [`Null`] renderer.
+    ///
+    /// [`Null`]: struct.Null.html
+    pub fn new() -> Null {
+        Null
+    }
+}
+
 impl Renderer for Null {
     type Output = ();
+    type Defaults = ();
 }
 
 impl column::Renderer for Null {
     fn draw<Message>(
         &mut self,
+        _defaults: &Self::Defaults,
         _content: &[Element<'_, Message, Self>],
         _layout: Layout<'_>,
         _cursor_position: Point,
@@ -25,6 +38,7 @@ impl column::Renderer for Null {
 impl row::Renderer for Null {
     fn draw<Message>(
         &mut self,
+        _defaults: &Self::Defaults,
         _content: &[Element<'_, Message, Self>],
         _layout: Layout<'_>,
         _cursor_position: Point,
@@ -33,9 +47,7 @@ impl row::Renderer for Null {
 }
 
 impl text::Renderer for Null {
-    fn default_size(&self) -> u16 {
-        20
-    }
+    const DEFAULT_SIZE: u16 = 20;
 
     fn measure(
         &self,
@@ -49,6 +61,7 @@ impl text::Renderer for Null {
 
     fn draw(
         &mut self,
+        _defaults: &Self::Defaults,
         _bounds: Rectangle,
         _content: &str,
         _size: u16,
@@ -61,13 +74,15 @@ impl text::Renderer for Null {
 }
 
 impl scrollable::Renderer for Null {
-    fn is_mouse_over_scrollbar(
+    type Style = ();
+
+    fn scrollbar(
         &self,
         _bounds: Rectangle,
         _content_bounds: Rectangle,
-        _cursor_position: Point,
-    ) -> bool {
-        false
+        _offset: u32,
+    ) -> Option<scrollable::Scrollbar> {
+        None
     }
 
     fn draw(
@@ -77,44 +92,73 @@ impl scrollable::Renderer for Null {
         _content_bounds: Rectangle,
         _is_mouse_over: bool,
         _is_mouse_over_scrollbar: bool,
+        _scrollbar: Option<scrollable::Scrollbar>,
         _offset: u32,
+        _style: &Self::Style,
         _content: Self::Output,
     ) {
     }
 }
 
 impl text_input::Renderer for Null {
+    type Style = ();
+
     fn default_size(&self) -> u16 {
         20
     }
 
+    fn measure_value(&self, _value: &str, _size: u16, _font: Font) -> f32 {
+        0.0
+    }
+
+    fn offset(
+        &self,
+        _text_bounds: Rectangle,
+        _size: u16,
+        _value: &text_input::Value,
+        _state: &text_input::State,
+        _font: Font,
+    ) -> f32 {
+        0.0
+    }
+
     fn draw(
         &mut self,
         _bounds: Rectangle,
         _text_bounds: Rectangle,
         _cursor_position: Point,
         _size: u16,
+        _font: Font,
         _placeholder: &str,
         _value: &text_input::Value,
         _state: &text_input::State,
+        _style: &Self::Style,
     ) -> Self::Output {
     }
 }
 
 impl button::Renderer for Null {
-    fn draw(
+    const DEFAULT_PADDING: u16 = 0;
+
+    type Style = ();
+
+    fn draw<Message>(
         &mut self,
+        _defaults: &Self::Defaults,
         _bounds: Rectangle,
         _cursor_position: Point,
+        _is_disabled: bool,
         _is_pressed: bool,
-        _background: Option<Background>,
-        _border_radius: u16,
-        _content: Self::Output,
+        _style: &Self::Style,
+        _content: &Element<'_, Message, Self>,
+        _content_layout: Layout<'_>,
     ) -> Self::Output {
     }
 }
 
 impl radio::Renderer for Null {
+    type Style = ();
+
     fn default_size(&self) -> u32 {
         20
     }
@@ -125,14 +169,16 @@ impl radio::Renderer for Null {
         _is_selected: bool,
         _is_mouse_over: bool,
         _label: Self::Output,
+        _style: &Self::Style,
     ) {
     }
 }
 
 impl checkbox::Renderer for Null {
-    fn default_size(&self) -> u32 {
-        20
-    }
+    type Style = ();
+
+    const DEFAULT_SIZE: u16 = 20;
+    const DEFAULT_SPACING: u16 = 15;
 
     fn draw(
         &mut self,
@@ -140,6 +186,41 @@ impl checkbox::Renderer for Null {
         _is_checked: bool,
         _is_mouse_over: bool,
         _label: Self::Output,
+        _style: &Self::Style,
+    ) {
+    }
+}
+
+impl slider::Renderer for Null {
+    type Style = ();
+
+    fn height(&self) -> u32 {
+        30
+    }
+
+    fn draw(
+        &mut self,
+        _bounds: Rectangle,
+        _cursor_position: Point,
+        _range: std::ops::RangeInclusive<f32>,
+        _value: f32,
+        _is_dragging: bool,
+        _style_sheet: &Self::Style,
+    ) {
+    }
+}
+
+impl progress_bar::Renderer for Null {
+    type Style = ();
+
+    const DEFAULT_HEIGHT: u16 = 30;
+
+    fn draw(
+        &self,
+        _bounds: Rectangle,
+        _range: std::ops::RangeInclusive<f32>,
+        _value: f32,
+        _style: &Self::Style,
     ) {
     }
 }