Merge remote-tracking branch 'origin/master' into feat/multi-window-support

# Conflicts:
#	native/src/command/action.rs
#	native/src/window/action.rs
#	winit/src/window.rs

native/src/widget/action.rs

@@ -1,4 +1,6 @@
-use crate::widget::operation::{self, Focusable, Operation, Scrollable};
+use crate::widget::operation::{
+    self, Focusable, Operation, Scrollable, TextInput,
+};
 use crate::widget::Id;
 
 use iced_futures::MaybeSend;
@@ -86,6 +88,14 @@ where
                 self.operation.focusable(state, id);
             }
 
+            fn text_input(
+                &mut self,
+                state: &mut dyn TextInput,
+                id: Option<&Id>,
+            ) {
+                self.operation.text_input(state, id);
+            }
+
             fn custom(&mut self, state: &mut dyn Any, id: Option<&Id>) {
                 self.operation.custom(state, id);
             }

native/src/widget/image.rs

@@ -111,6 +111,45 @@ where
     layout::Node::new(final_size)
 }
 
+/// Draws an [`Image`]
+pub fn draw<Renderer, Handle>(
+    renderer: &mut Renderer,
+    layout: Layout<'_>,
+    handle: &Handle,
+    content_fit: ContentFit,
+) where
+    Renderer: image::Renderer<Handle = Handle>,
+    Handle: Clone + Hash,
+{
+    let Size { width, height } = renderer.dimensions(handle);
+    let image_size = Size::new(width as f32, height as f32);
+
+    let bounds = layout.bounds();
+    let adjusted_fit = content_fit.fit(image_size, bounds.size());
+
+    let render = |renderer: &mut Renderer| {
+        let offset = Vector::new(
+            (bounds.width - adjusted_fit.width).max(0.0) / 2.0,
+            (bounds.height - adjusted_fit.height).max(0.0) / 2.0,
+        );
+
+        let drawing_bounds = Rectangle {
+            width: adjusted_fit.width,
+            height: adjusted_fit.height,
+            ..bounds
+        };
+
+        renderer.draw(handle.clone(), drawing_bounds + offset)
+    };
+
+    if adjusted_fit.width > bounds.width || adjusted_fit.height > bounds.height
+    {
+        renderer.with_layer(bounds, render);
+    } else {
+        render(renderer)
+    }
+}
+
 impl<Message, Renderer, Handle> Widget<Message, Renderer> for Image<Handle>
 where
     Renderer: image::Renderer<Handle = Handle>,
@@ -149,34 +188,7 @@ where
         _cursor_position: Point,
         _viewport: &Rectangle,
     ) {
-        let Size { width, height } = renderer.dimensions(&self.handle);
-        let image_size = Size::new(width as f32, height as f32);
-
-        let bounds = layout.bounds();
-        let adjusted_fit = self.content_fit.fit(image_size, bounds.size());
-
-        let render = |renderer: &mut Renderer| {
-            let offset = Vector::new(
-                (bounds.width - adjusted_fit.width).max(0.0) / 2.0,
-                (bounds.height - adjusted_fit.height).max(0.0) / 2.0,
-            );
-
-            let drawing_bounds = Rectangle {
-                width: adjusted_fit.width,
-                height: adjusted_fit.height,
-                ..bounds
-            };
-
-            renderer.draw(self.handle.clone(), drawing_bounds + offset)
-        };
-
-        if adjusted_fit.width > bounds.width
-            || adjusted_fit.height > bounds.height
-        {
-            renderer.with_layer(bounds, render);
-        } else {
-            render(renderer)
-        }
+        draw(renderer, layout, &self.handle, self.content_fit)
     }
 }
 

native/src/widget/operation.rs

@@ -62,7 +62,7 @@ where
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             Self::None => write!(f, "Outcome::None"),
-            Self::Some(output) => write!(f, "Outcome::Some({:?})", output),
+            Self::Some(output) => write!(f, "Outcome::Some({output:?})"),
             Self::Chain(_) => write!(f, "Outcome::Chain(...)"),
         }
     }

native/src/widget/pane_grid.rs

@@ -35,7 +35,7 @@ pub use iced_style::pane_grid::{Line, StyleSheet};
 use crate::event::{self, Event};
 use crate::layout;
 use crate::mouse;
-use crate::overlay;
+use crate::overlay::{self, Group};
 use crate::renderer;
 use crate::touch;
 use crate::widget;
@@ -450,14 +450,17 @@ where
         layout: Layout<'_>,
         renderer: &Renderer,
     ) -> Option<overlay::Element<'_, Message, Renderer>> {
-        self.contents
+        let children = self
+            .contents
             .iter_mut()
             .zip(&mut tree.children)
             .zip(layout.children())
-            .filter_map(|(((_, pane), tree), layout)| {
-                pane.overlay(tree, layout, renderer)
+            .filter_map(|(((_, content), state), layout)| {
+                content.overlay(state, layout, renderer)
             })
-            .next()
+            .collect::<Vec<_>>();
+
+        (!children.is_empty()).then(|| Group::with_children(children).overlay())
     }
 }
 

native/src/widget/pick_list.rs

@@ -20,60 +20,6 @@ use std::borrow::Cow;
 
 pub use iced_style::pick_list::{Appearance, StyleSheet};
 
-/// The handle to the right side of the [`PickList`].
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub enum Handle<Renderer>
-where
-    Renderer: text::Renderer,
-{
-    /// Displays an arrow icon (▼).
-    ///
-    /// This is the default.
-    Arrow {
-        /// Font size of the content.
-        size: Option<u16>,
-    },
-    /// A custom handle.
-    Custom {
-        /// Font that will be used to display the `text`,
-        font: Renderer::Font,
-        /// Text that will be shown.
-        text: String,
-        /// Font size of the content.
-        size: Option<u16>,
-    },
-    /// No handle will be shown.
-    None,
-}
-
-impl<Renderer> Default for Handle<Renderer>
-where
-    Renderer: text::Renderer,
-{
-    fn default() -> Self {
-        Self::Arrow { size: None }
-    }
-}
-
-impl<Renderer> Handle<Renderer>
-where
-    Renderer: text::Renderer,
-{
-    fn content(&self) -> Option<(Renderer::Font, String, Option<u16>)> {
-        match self {
-            Self::Arrow { size } => Some((
-                Renderer::ICON_FONT,
-                Renderer::ARROW_DOWN_ICON.to_string(),
-                *size,
-            )),
-            Self::Custom { font, text, size } => {
-                Some((font.clone(), text.clone(), *size))
-            }
-            Self::None => None,
-        }
-    }
-}
-
 /// A widget for selecting a single value from a list of options.
 #[allow(missing_debug_implementations)]
 pub struct PickList<'a, T, Message, Renderer>
@@ -90,7 +36,7 @@ where
     padding: Padding,
     text_size: Option<u16>,
     font: Renderer::Font,
-    handle: Handle<Renderer>,
+    handle: Handle<Renderer::Font>,
     style: <Renderer::Theme as StyleSheet>::Style,
 }
 
@@ -161,7 +107,7 @@ where
     }
 
     /// Sets the [`Handle`] of the [`PickList`].
-    pub fn handle(mut self, handle: Handle<Renderer>) -> Self {
+    pub fn handle(mut self, handle: Handle<Renderer::Font>) -> Self {
         self.handle = handle;
         self
     }
@@ -258,7 +204,7 @@ where
 
     fn draw(
         &self,
-        _tree: &Tree,
+        tree: &Tree,
         renderer: &mut Renderer,
         theme: &Renderer::Theme,
         _style: &renderer::Style,
@@ -278,6 +224,7 @@ where
             self.selected.as_ref(),
             &self.handle,
             &self.style,
+            || tree.state.downcast_ref::<State<T>>(),
         )
     }
 
@@ -349,6 +296,46 @@ impl<T> Default for State<T> {
     }
 }
 
+/// The handle to the right side of the [`PickList`].
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum Handle<Font> {
+    /// Displays an arrow icon (▼).
+    ///
+    /// This is the default.
+    Arrow {
+        /// Font size of the content.
+        size: Option<u16>,
+    },
+    /// A custom static handle.
+    Static(Icon<Font>),
+    /// A custom dynamic handle.
+    Dynamic {
+        /// The [`Icon`] used when [`PickList`] is closed.
+        closed: Icon<Font>,
+        /// The [`Icon`] used when [`PickList`] is open.
+        open: Icon<Font>,
+    },
+    /// No handle will be shown.
+    None,
+}
+
+impl<Font> Default for Handle<Font> {
+    fn default() -> Self {
+        Self::Arrow { size: None }
+    }
+}
+
+/// The icon of a [`Handle`].
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Icon<Font> {
+    /// Font that will be used to display the `code_point`,
+    pub font: Font,
+    /// The unicode code point that will be used as the icon.
+    pub code_point: char,
+    /// Font size of the content.
+    pub size: Option<u16>,
+}
+
 /// Computes the layout of a [`PickList`].
 pub fn layout<Renderer, T>(
     renderer: &Renderer,
@@ -568,7 +555,7 @@ where
 }
 
 /// Draws a [`PickList`].
-pub fn draw<T, Renderer>(
+pub fn draw<'a, T, Renderer>(
     renderer: &mut Renderer,
     theme: &Renderer::Theme,
     layout: Layout<'_>,
@@ -578,12 +565,13 @@ pub fn draw<T, Renderer>(
     font: &Renderer::Font,
     placeholder: Option<&str>,
     selected: Option<&T>,
-    handle: &Handle<Renderer>,
+    handle: &Handle<Renderer::Font>,
     style: &<Renderer::Theme as StyleSheet>::Style,
+    state: impl FnOnce() -> &'a State<T>,
 ) where
     Renderer: text::Renderer,
     Renderer::Theme: StyleSheet,
-    T: ToString,
+    T: ToString + 'a,
 {
     let bounds = layout.bounds();
     let is_mouse_over = bounds.contains(cursor_position);
@@ -605,11 +593,30 @@ pub fn draw<T, Renderer>(
         style.background,
     );
 
-    if let Some((font, text, size)) = handle.content() {
+    let handle = match handle {
+        Handle::Arrow { size } => {
+            Some((Renderer::ICON_FONT, Renderer::ARROW_DOWN_ICON, *size))
+        }
+        Handle::Static(Icon {
+            font,
+            code_point,
+            size,
+        }) => Some((font.clone(), *code_point, *size)),
+        Handle::Dynamic { open, closed } => {
+            if state().is_open {
+                Some((open.font.clone(), open.code_point, open.size))
+            } else {
+                Some((closed.font.clone(), closed.code_point, closed.size))
+            }
+        }
+        Handle::None => None,
+    };
+
+    if let Some((font, code_point, size)) = handle {
         let size = f32::from(size.unwrap_or_else(|| renderer.default_size()));
 
         renderer.fill_text(Text {
-            content: &text,
+            content: &code_point.to_string(),
             size,
             font,
             color: style.handle_color,

native/src/widget/text_input.rs

@@ -389,8 +389,8 @@ where
     let padding = padding.fit(Size::ZERO, limits.max());
 
     let limits = limits
-        .pad(padding)
         .width(width)
+        .pad(padding)
         .height(Length::Units(text_size));
 
     let mut text = layout::Node::new(limits.resolve(Size::ZERO));