ui2: Unsuppress and fix warnings (#3423)

This PR unsupresses the warnings in `ui2` and summarily fixes them.

Release Notes:

- N/A

crates/ui2/src/components/context_menu.rs

@@ -264,7 +264,7 @@ impl<M: ManagedView> Element for MenuHandle<M> {
 
                 let new_menu = (builder)(cx);
                 let menu2 = menu.clone();
-                cx.subscribe(&new_menu, move |modal, e, cx| match e {
+                cx.subscribe(&new_menu, move |_modal, e, cx| match e {
                     &DismissEvent::Dismiss => {
                         *menu2.borrow_mut() = None;
                         cx.notify();

crates/ui2/src/components/divider.rs

@@ -49,17 +49,4 @@ impl Divider {
         self.inset = true;
         self
     }
-
-    fn render(self, cx: &mut WindowContext) -> impl Element {
-        div()
-            .map(|this| match self.direction {
-                DividerDirection::Horizontal => {
-                    this.h_px().w_full().when(self.inset, |this| this.mx_1p5())
-                }
-                DividerDirection::Vertical => {
-                    this.w_px().h_full().when(self.inset, |this| this.my_1p5())
-                }
-            })
-            .bg(cx.theme().colors().border_variant)
-    }
 }

crates/ui2/src/components/icon.rs

@@ -189,17 +189,4 @@ impl IconElement {
         self.size = size;
         self
     }
-
-    fn render(self, cx: &mut WindowContext) -> impl Element {
-        let svg_size = match self.size {
-            IconSize::Small => rems(0.75),
-            IconSize::Medium => rems(0.9375),
-        };
-
-        svg()
-            .size(svg_size)
-            .flex_none()
-            .path(self.path)
-            .text_color(self.color.color(cx))
-    }
 }

crates/ui2/src/components/icon_button.rs

@@ -23,15 +23,13 @@ impl RenderOnce for IconButton {
             _ => self.color,
         };
 
-        let (mut bg_color, bg_hover_color, bg_active_color) = match self.variant {
+        let (mut bg_color, bg_active_color) = match self.variant {
             ButtonVariant::Filled => (
                 cx.theme().colors().element_background,
-                cx.theme().colors().element_hover,
                 cx.theme().colors().element_active,
             ),
             ButtonVariant::Ghost => (
                 cx.theme().colors().ghost_element_background,
-                cx.theme().colors().ghost_element_hover,
                 cx.theme().colors().ghost_element_active,
             ),
         };
@@ -124,6 +122,6 @@ impl IconButton {
     }
 
     pub fn action(self, action: Box<dyn Action>) -> Self {
-        self.on_click(move |this, cx| cx.dispatch_action(action.boxed_clone()))
+        self.on_click(move |_event, cx| cx.dispatch_action(action.boxed_clone()))
     }
 }

crates/ui2/src/components/keybinding.rs

@@ -13,7 +13,7 @@ pub struct KeyBinding {
 impl RenderOnce for KeyBinding {
     type Rendered = Div;
 
-    fn render(self, cx: &mut WindowContext) -> Self::Rendered {
+    fn render(self, _cx: &mut WindowContext) -> Self::Rendered {
         div()
             .flex()
             .gap_2()

crates/ui2/src/components/label.rs

@@ -1,6 +1,6 @@
 use crate::prelude::*;
 use crate::styled_ext::StyledExt;
-use gpui::{relative, Div, Hsla, IntoElement, StyledText, TextRun, WindowContext};
+use gpui::{relative, Div, IntoElement, StyledText, TextRun, WindowContext};
 
 #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Default)]
 pub enum LabelSize {
@@ -182,9 +182,3 @@ impl HighlightedLabel {
         self
     }
 }
-
-/// A run of text that receives the same style.
-struct Run {
-    pub text: String,
-    pub color: Hsla,
-}

crates/ui2/src/components/list.rs

@@ -138,7 +138,7 @@ impl ListSubHeader {
 impl RenderOnce for ListSubHeader {
     type Rendered = Div;
 
-    fn render(self, cx: &mut WindowContext) -> Self::Rendered {
+    fn render(self, _cx: &mut WindowContext) -> Self::Rendered {
         h_stack().flex_1().w_full().relative().py_1().child(
             div()
                 .h_6()
@@ -168,14 +168,12 @@ impl RenderOnce for ListSubHeader {
 #[derive(IntoElement)]
 pub struct ListItem {
     id: ElementId,
-    disabled: bool,
     selected: bool,
     // TODO: Reintroduce this
     // disclosure_control_style: DisclosureControlVisibility,
     indent_level: usize,
     indent_step_size: Pixels,
     left_slot: Option<GraphicSlot>,
-    overflow: OverflowStyle,
     toggle: Toggle,
     inset: bool,
     on_click: Option<Rc<dyn Fn(&ClickEvent, &mut WindowContext) + 'static>>,
@@ -187,12 +185,10 @@ impl ListItem {
     pub fn new(id: impl Into<ElementId>) -> Self {
         Self {
             id: id.into(),
-            disabled: false,
             selected: false,
             indent_level: 0,
             indent_step_size: px(12.),
             left_slot: None,
-            overflow: OverflowStyle::Hidden,
             toggle: Toggle::NotToggleable,
             inset: false,
             on_click: None,
@@ -365,7 +361,7 @@ pub struct List {
 impl RenderOnce for List {
     type Rendered = Div;
 
-    fn render(self, cx: &mut WindowContext) -> Self::Rendered {
+    fn render(self, _cx: &mut WindowContext) -> Self::Rendered {
         let list_content = match (self.children.is_empty(), self.toggle) {
             (false, _) => div().children(self.children),
             (true, Toggle::Toggled(false)) => div(),

crates/ui2/src/components/stories/avatar.rs

@@ -9,7 +9,7 @@ pub struct AvatarStory;
 impl Render for AvatarStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         Story::container()
             .child(Story::title_for::<Avatar>())
             .child(Story::label("Default"))

crates/ui2/src/components/stories/button.rs

@@ -10,7 +10,7 @@ pub struct ButtonStory;
 impl Render for ButtonStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         let states = InteractionState::iter();
 
         Story::container()
@@ -139,7 +139,7 @@ impl Render for ButtonStory {
             .child(
                 Button::new("Label")
                     .variant(ButtonVariant::Ghost)
-                    .on_click(|_, cx| println!("Button clicked.")),
+                    .on_click(|_, _cx| println!("Button clicked.")),
             )
     }
 }

crates/ui2/src/components/stories/context_menu.rs

@@ -10,11 +10,11 @@ fn build_menu(cx: &mut WindowContext, header: impl Into<SharedString>) -> View<C
     ContextMenu::build(cx, |menu, _| {
         menu.header(header)
             .separator()
-            .entry("Print current time", |v, cx| {
+            .entry("Print current time", |_event, cx| {
                 println!("dispatching PrintCurrentTime action");
                 cx.dispatch_action(PrintCurrentDate.boxed_clone())
             })
-            .entry("Print best foot", |v, cx| {
+            .entry("Print best foot", |_event, cx| {
                 cx.dispatch_action(PrintBestFood.boxed_clone())
             })
     })
@@ -25,7 +25,7 @@ pub struct ContextMenuStory;
 impl Render for ContextMenuStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         Story::container()
             .on_action(|_: &PrintCurrentDate, _| {
                 println!("printing unix time!");

crates/ui2/src/components/stories/icon.rs

@@ -10,7 +10,7 @@ pub struct IconStory;
 impl Render for IconStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         let icons = Icon::iter();
 
         Story::container()

crates/ui2/src/components/stories/input.rs

@@ -9,7 +9,7 @@ pub struct InputStory;
 impl Render for InputStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         Story::container()
             .child(Story::title_for::<Input>())
             .child(Story::label("Default"))

crates/ui2/src/components/stories/keybinding.rs

@@ -16,7 +16,7 @@ pub fn binding(key: &str) -> gpui::KeyBinding {
 impl Render for KeybindingStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         let all_modifier_permutations = ["ctrl", "alt", "cmd", "shift"].into_iter().permutations(2);
 
         Story::container()

crates/ui2/src/components/stories/label.rs

@@ -9,7 +9,7 @@ pub struct LabelStory;
 impl Render for LabelStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         Story::container()
             .child(Story::title_for::<Label>())
             .child(Story::label("Default"))

crates/ui2/src/components/stories/list_item.rs

@@ -9,7 +9,7 @@ pub struct ListItemStory;
 impl Render for ListItemStory {
     type Element = Div;
 
-    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
+    fn render(&mut self, _cx: &mut ViewContext<Self>) -> Self::Element {
         Story::container()
             .child(Story::title_for::<ListItem>())
             .child(Story::label("Default"))

crates/ui2/src/components/tooltip.rs

@@ -13,7 +13,7 @@ pub struct Tooltip {
 
 impl Tooltip {
     pub fn text(title: impl Into<SharedString>, cx: &mut WindowContext) -> AnyView {
-        cx.build_view(|cx| Self {
+        cx.build_view(|_cx| Self {
             title: title.into(),
             meta: None,
             key_binding: None,