0.4

Scroll elements size fix

.github/workflows/release.yml

@@ -0,0 +1,158 @@
+name: Deploy
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: Pass the version
+        required: true
+        type: string
+      release_info:
+        description: Information about release
+        required: true
+        type: string
+      dry_run:
+        description: Perform test without releasing
+        type: choice
+        required: true
+        default: "true"
+        options:
+          - "true"
+          - "false"  
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+
+permissions:
+  contents: write
+
+jobs:
+  setup:
+    name: Prepare job settings
+    runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.setup.outputs.version }}
+      dry_run: ${{ steps.setup.outputs.dry_run }}
+      info: ${{ steps.setup.outputs.info }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        if: ${{ github.event_name == 'push' }}
+      - name: Get the release version from the tag and info from commit
+        id: version_push
+        shell: bash
+        if: ${{ github.event_name == 'push' }}
+        run: |
+          echo version=${GITHUB_REF#refs/tags/} >> $GITHUB_OUTPUT
+          echo info=$(git tag -l --format='%(contents)' ${GITHUB_REF#refs/tags/}) >> $GITHUB_OUTPUT
+      - name: Get the release version from the input
+        id: version_dispatch
+        shell: bash
+        if: ${{ github.event_name == 'workflow_dispatch' }}
+        run: |
+          echo 
+          echo version=$(echo ${{ inputs.version }} | xargs) >> $GITHUB_OUTPUT
+          echo dry_run=$(echo ${{ inputs.dry_run }} | xargs) >> $GITHUB_OUTPUT
+          echo info="${{ inputs.release_info }}" >> $GITHUB_OUTPUT
+      - name: Setup
+        id: setup
+        shell: bash
+        run: |
+          echo version=$(if [ -n "${{ steps.version_dispatch.outputs.version }}" ]; then echo "${{ steps.version_dispatch.outputs.version }}"; else echo "${{ steps.version_push.outputs.version }}"; fi) >> $GITHUB_OUTPUT
+          echo dry_run=$(if [ -n "${{ steps.version_dispatch.outputs.dry_run }}" ]; then echo "${{ steps.version_dispatch.outputs.dry_run }}"; else echo "false"; fi) >> $GITHUB_OUTPUT
+          echo info=$(if [ -n "${{ steps.version_dispatch.outputs.info }}" ]; then echo "${{ steps.version_dispatch.outputs.info }}"; else echo "${{ steps.version_push.outputs.info }}"; fi) >> $GITHUB_OUTPUT
+      - name: Display settings
+        shell: bash
+        run: echo "Version ${{ steps.setup.outputs.version }}, Dry run- ${{ steps.setup.outputs.dry_run }}, info- ${{ steps.setup.outputs.info }}"
+      - name: Validate input
+        shell: bash
+        run: |
+          if [ -z "${{ steps.setup.outputs.version }}" ]; then exit 1; fi;
+          if [ -z "${{ steps.setup.outputs.dry_run }}" ]; then exit 1; fi;
+          if [ -z "${{ steps.setup.outputs.info }}" ]; then exit 1; fi;
+          if [[ "${{ steps.setup.outputs.version }}" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+).*?$ ]]; then echo "Valid version"; else echo "INVALID VERSION FORMAT!";exit 1; fi;
+  build-and-upload:
+    name: Build and upload
+    needs:
+      - setup
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+          - build: linux
+            os: ubuntu-latest
+            target: x86_64-unknown-linux-musl
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ github.ref || github.run_id }}
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+      - name: Build
+        uses: actions-rs/cargo@v1
+        with:
+          use-cross: true
+          command: build
+          args: --verbose --release --target ${{ matrix.target }}
+      - name: Extract changelog content
+        id: extract_changelog
+        shell: bash
+        run: |
+          version="${{ needs.setup.outputs.version }}"
+          echo "${{ needs.setup.outputs.info }}" > changelog_output.txt
+          awk "/^## \\[$version\\]/ {flag=1; next} /^## \\[/ && flag {flag=0} flag" CHANGELOG.md >> changelog_output.txt
+      - name: Display extracted content
+        run: cat changelog_output.txt
+      - name: Release
+        if: ${{ needs.setup.outputs.dry_run == 'false'}}
+        uses: softprops/action-gh-release@v2
+        with:
+          body_path: changelog_output.txt
+  deploy-to-crates-io:
+    needs:
+      - setup
+      - build-and-upload
+    name: Deploy to crates.io
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ github.ref || github.run_id }}
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: taiki-e/cache-cargo-install-action@v2
+        with:
+          tool: cargo-release
+      - name: cargo publish dry run
+        if: ${{ needs.setup.outputs.dry_run == 'true'}}
+        run: cargo publish --dry-run
+      - name: cargo login
+        run: cargo login ${{ secrets.CRATES_IO_TOKEN }}
+      - name: "cargo release publish"
+        if: ${{ needs.setup.outputs.dry_run == 'false'}}
+        run: |-
+          cargo release \
+            publish \
+            --workspace \
+            --all-features \
+            --allow-branch HEAD \
+            --no-confirm \
+            --no-verify \
+            --execute

CHANGELOG.md

@@ -1,5 +1,44 @@
 # CHANGELOG
 
+## [0.4.0]
+
+## Changed
+
+- Updated to Bevy 0.16
+
+## [0.3.2]
+
+## Added
+
+- `scroll_view_node` function with default values for `ScrollView` node
+- documentation to the code 
+
+## Fixed
+
+- `ScrollableContent` default Node values fix
+
+## [0.3.1]
+
+## Fixed
+
+- Size calculation missmatch [#3](https://github.com/Leinnan/bevy_simple_scroll_view/issues/3)
+
+## [0.3.0]
+
+## Added
+
+- scroll to bottom and top functions for `ScrollableContent` component.
+
+## Changed
+
+- Updated to Bevy 0.15
+
+## [0.2.0]
+
+## Changed
+
+- Updated to Bevy 0.14
+
 ## [0.1.0]
 
 - Initial version

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bevy_simple_scroll_view"
-version = "0.1.0"
+version = "0.4.0"
 edition = "2021"
 exclude = [".github/", "wasm/", "record.gif"]
 categories = ["game-development", "gui"]
@@ -11,10 +11,17 @@ license = "MIT OR Apache-2.0"
 description = "Simple to use plugin implementing ScrollView into Bevy engine."
 
 [dependencies.bevy]
-version = "0.13"
+version = "0.16"
 default-features = false
 features = ["bevy_ui", "bevy_asset", "bevy_text"]
 
 [dev-dependencies.bevy]
-version = "0.13"
+version = "0.16"
 default-features = true
+
+[features]
+default = []
+extra_logs = ["bevy/bevy_log"]
+
+[lints.rust]
+missing_docs = "warn"

README.md

@@ -36,4 +36,7 @@ Please keep PRs small and scoped to a single feature or fix.
 
 Bevy version | crate version
 --- | ---
+0.16 | 0.4
+0.15 | 0.3
+0.14 | 0.2
 0.13 | 0.1

examples/simple.rs

@@ -1,122 +1,84 @@
+#![allow(missing_docs)]
+
+use bevy::picking::events::{Pointer, Released};
 use bevy::prelude::*;
 use bevy_simple_scroll_view::*;
 
-const CLR_1: Color = Color::rgb(0.168, 0.168, 0.168);
+const BG_COLOR: BackgroundColor = BackgroundColor(Color::srgb(0.168, 0.168, 0.168));
-const CLR_2: Color = Color::rgb(0.109, 0.109, 0.109);
+const BG_COLOR_2: BackgroundColor = BackgroundColor(Color::srgb(0.109, 0.109, 0.109));
-const CLR_3: Color = Color::rgb(0.569, 0.592, 0.647);
+const CLR_3: Color = Color::srgb(0.569, 0.592, 0.647);
-const CLR_4: Color = Color::rgb(0.902, 0.4, 0.004);
+const TEXT_COLOR: TextColor = TextColor(Color::srgb(0.902, 0.4, 0.004));
 
 fn main() {
     App::new()
         .add_plugins((DefaultPlugins, ScrollViewPlugin))
-        .add_systems(Startup, prepare)
+        .add_systems(Startup, setup)
-        .add_systems(Update, reset_scroll)
         .run();
 }
 
-fn prepare(mut commands: Commands) {
+fn setup(mut commands: Commands) {
-    commands.spawn(Camera2dBundle::default());
+    let base_node = Node {
+        align_items: AlignItems::Center,
+        justify_content: JustifyContent::Center,
+        min_width: Val::Px(200.0),
+        margin: UiRect::all(Val::Px(10.0)),
+        border: UiRect::all(Val::Px(5.0)),
+        padding: UiRect::all(Val::Px(15.0)),
+        ..default()
+    };
+    commands.spawn(Camera2d);
     commands
-        .spawn(NodeBundle {
+        .spawn((
-            style: Style {
+            BG_COLOR,
+            Node {
                 width: Val::Percent(100.0),
                 height: Val::Percent(100.0),
-                padding: UiRect::all(Val::Px(15.0)),
                 ..default()
             },
-            background_color: CLR_1.into(),
+        ))
-            ..default()
-        })
         .with_children(|p| {
-            p.spawn(ButtonBundle {
+            p.spawn(Node {
-                style: Style {
+                width: Val::Percent(20.0),
                 margin: UiRect::all(Val::Px(15.0)),
-                    padding: UiRect::all(Val::Px(15.0)),
+                flex_direction: FlexDirection::Column,
-                    max_height: Val::Px(100.0),
-                    border: UiRect::all(Val::Px(3.0)),
-                    align_items: AlignItems::Center,
-                    ..default()
-                },
-                background_color: CLR_2.into(),
-                border_color: CLR_4.into(),
                 ..default()
             })
             .with_children(|p| {
-                p.spawn(TextBundle::from_section(
+                p.spawn((Text::new("Scroll to:"), TEXT_COLOR));
-                    "Reset scroll",
+                let btn = (base_node.clone(), BG_COLOR_2, Button);
-                    TextStyle {
+                p.spawn(btn.clone())
-                        font_size: 25.0,
+                    .observe(scroll_to_top)
-                        color: CLR_4,
+                    .with_child((Text::new("top"), TEXT_COLOR));
-                        ..default()
+                p.spawn(btn)
-                    },
+                    .observe(scroll_to_bottom)
-                ));
+                    .with_child((Text::new("bottom"), TEXT_COLOR));
             });
             p.spawn((
-                NodeBundle {
+                Node {
-                    style: Style {
                     width: Val::Percent(80.0),
                     margin: UiRect::all(Val::Px(15.0)),
-                        ..default()
+                    ..scroll_view_node()
-                    },
-                    background_color: CLR_2.into(),
-                    ..default()
                 },
+                BG_COLOR_2,
                 ScrollView::default(),
             ))
             .with_children(|p| {
-                p.spawn((
+                p.spawn(ScrollableContent::default())
-                    NodeBundle {
-                        style: Style {
-                            flex_direction: bevy::ui::FlexDirection::Column,
-                            width: Val::Percent(100.0),
-                            ..default()
-                        },
-                        ..default()
-                    },
-                    ScrollableContent::default(),
-                ))
                     .with_children(|scroll_area| {
-                    for i in 0..21 {
+                        for i in 1..21 {
                             scroll_area
-                            .spawn(NodeBundle {
+                                .spawn((base_node.clone(), BorderColor(CLR_3)))
-                                style: Style {
+                                .with_child((Text::new(format!("Nr {} out of 20", i)), TEXT_COLOR));
-                                    min_width: Val::Px(200.0),
-                                    margin: UiRect::all(Val::Px(15.0)),
-                                    border: UiRect::all(Val::Px(5.0)),
-                                    padding: UiRect::all(Val::Px(30.0)),
-                                    ..default()
-                                },
-                                border_color: CLR_3.into(),
-                                ..default()
-                            })
-                            .with_children(|p| {
-                                p.spawn(
-                                    TextBundle::from_section(
-                                        format!("Nr {}", i),
-                                        TextStyle {
-                                            font_size: 25.0,
-                                            color: CLR_3,
-                                            ..default()
-                                        },
-                                    )
-                                    .with_text_justify(JustifyText::Center),
-                                );
-                            });
                         }
                     });
             });
         });
 }
 
-fn reset_scroll(
+fn scroll_to_top(_t: Trigger<Pointer<Released>>, mut scroll: Single<&mut ScrollableContent>) {
-    q: Query<(&Button, &Interaction), Changed<Interaction>>,
+    scroll.scroll_to_top();
-    mut scrolls_q: Query<&mut ScrollableContent>,
-) {
-    for (_, interaction) in q.iter() {
-        if interaction == &Interaction::Pressed {
-            for mut scroll in scrolls_q.iter_mut() {
-                scroll.pos_y = 0.0;
-            }
-        }
 }
+
+fn scroll_to_bottom(_t: Trigger<Pointer<Released>>, mut scroll: Single<&mut ScrollableContent>) {
+    scroll.scroll_to_bottom();
 }

src/lib.rs

@@ -8,7 +8,7 @@ use bevy::{
 /// A `Plugin` providing the systems and components required to make a ScrollView work.
 ///
 /// # Example
-/// ```
+/// ```no_run
 /// use bevy::prelude::*;
 /// use bevy_simple_scroll_view::*;
 ///
@@ -26,6 +26,7 @@ impl Plugin for ScrollViewPlugin {
                 Update,
                 (
                     create_scroll_view,
+                    update_size,
                     input_mouse_pressed_move,
                     input_touch_pressed_move,
                     scroll_events,
@@ -38,6 +39,7 @@ impl Plugin for ScrollViewPlugin {
 
 /// Root component of scroll, it should have clipped style.
 #[derive(Component, Debug, Reflect)]
+#[require(Interaction, Node = scroll_view_node())]
 pub struct ScrollView {
     /// Field which control speed of the scrolling.
     /// Could be negative number to implement invert scroll
@@ -47,7 +49,7 @@ pub struct ScrollView {
 impl Default for ScrollView {
     fn default() -> Self {
         Self {
-            scroll_speed: 200.0,
+            scroll_speed: 1200.0,
         }
     }
 }
@@ -55,69 +57,140 @@ impl Default for ScrollView {
 /// Component containing offset value of the scroll container to the parent.
 /// It is possible to update the field `pos_y` manually to move scrollview to desired location.
 #[derive(Component, Debug, Reflect, Default)]
+#[require(Node = scroll_content_node())]
 pub struct ScrollableContent {
     /// Scroll container offset to the `ScrollView`.
     pub pos_y: f32,
+    /// Maximum value for the scroll. It is updated automatically based on the size of the children nodes.
+    pub max_scroll: f32,
 }
 
-pub fn create_scroll_view(
+impl ScrollableContent {
-    mut commands: Commands,
+    /// Scrolls to the top of the scroll view.
-    mut q: Query<(Entity, &mut Style), Added<ScrollView>>,
+    pub fn scroll_to_top(&mut self) {
-) {
+        self.pos_y = 0.0;
-    for (e, mut style) in q.iter_mut() {
+    }
-        style.overflow = Overflow::clip();
+    /// Scrolls to the bottom of the scroll view.
-        style.align_items = AlignItems::Start;
+    pub fn scroll_to_bottom(&mut self) {
-        style.align_self = AlignSelf::Stretch;
+        self.pos_y = -self.max_scroll;
-        style.flex_direction = FlexDirection::Row;
+    }
-        commands.entity(e).insert(Interaction::None);
+
+    /// Scrolls by a specified amount.
+    ///
+    /// # Parameters
+    /// - `value`: The amount to scroll vertically. Positive values scroll down,
+    ///   and negative values scroll up.
+    ///
+    /// Ensures the new position is clamped between the valid scroll range.
+    pub fn scroll_by(&mut self, value: f32) {
+        self.pos_y += value;
+        self.pos_y = self.pos_y.clamp(-self.max_scroll, 0.);
+    }
+}
+
+/// Creates a default scroll view node.
+///
+/// This function defines the visual and layout properties of a scrollable container.
+pub fn scroll_view_node() -> Node {
+    Node {
+        overflow: Overflow::clip(),
+        align_items: AlignItems::Start,
+        align_self: AlignSelf::Stretch,
+        flex_direction: FlexDirection::Row,
+        ..default()
+    }
+}
+
+/// Creates a default scroll content node.
+pub fn scroll_content_node() -> Node {
+    Node {
+        flex_direction: bevy::ui::FlexDirection::Column,
+        width: Val::Percent(100.0),
+        ..default()
+    }
+}
+
+/// Applies the default scroll view style to newly added `ScrollView` components.
+///
+/// This function updates the style of all new `ScrollView` nodes with the default
+/// properties defined in `scroll_view_node`.
+pub fn create_scroll_view(mut q: Query<&mut Node, Added<ScrollView>>) {
+    let Node {
+        overflow,
+        align_items,
+        align_self,
+        flex_direction,
+        ..
+    } = scroll_view_node();
+    for mut style in q.iter_mut() {
+        style.overflow = overflow;
+        style.align_items = align_items;
+        style.align_self = align_self;
+        style.flex_direction = flex_direction;
     }
 }
 
 fn input_mouse_pressed_move(
     mut motion_evr: EventReader<MouseMotion>,
-    mut q: Query<(&Children, &Interaction, &Node), With<ScrollView>>,
+    mut q: Query<(&Children, &Interaction), With<ScrollView>>,
-    mut content_q: Query<(&mut ScrollableContent, &Node)>,
+    mut content_q: Query<&mut ScrollableContent>,
 ) {
     for evt in motion_evr.read() {
-        for (children, &interaction, node) in q.iter_mut() {
+        for (children, &interaction) in q.iter_mut() {
             if interaction != Interaction::Pressed {
                 continue;
             }
-            let container_height = node.size().y;
+            for child in children.iter() {
-            for &child in children.iter() {
+                let Ok(mut scroll) = content_q.get_mut(child) else {
-                if let Ok(item) = content_q.get_mut(child) {
+                    continue;
-                    let mut scroll = item.0;
+                };
-                    let max_scroll = (item.1.size().y - container_height).max(0.0);
+                scroll.scroll_by(evt.delta.y);
-                    scroll.pos_y += evt.delta.y;
-                    scroll.pos_y = scroll.pos_y.clamp(-max_scroll, 0.);
             }
         }
     }
 }
+
+fn update_size(
+    mut q: Query<(&Children, &ComputedNode), With<ScrollView>>,
+    mut content_q: Query<(&mut ScrollableContent, &ComputedNode), Changed<ComputedNode>>,
+) {
+    for (children, scroll_view_node) in q.iter_mut() {
+        let container_height = scroll_view_node.size().y * scroll_view_node.inverse_scale_factor();
+        for child in children.iter() {
+            let Ok((mut scroll, node)) = content_q.get_mut(child) else {
+                continue;
+            };
+
+            scroll.max_scroll =
+                (node.size().y * node.inverse_scale_factor() - container_height).max(0.0);
+            #[cfg(feature = "extra_logs")]
+            info!(
+                "CONTAINER {}, max_scroll: {}",
+                container_height, scroll.max_scroll
+            );
+        }
+    }
 }
 
 fn input_touch_pressed_move(
     touches: Res<Touches>,
-    mut q: Query<(&Children, &Interaction, &Node), With<ScrollView>>,
+    mut q: Query<(&Children, &Interaction), With<ScrollView>>,
-    mut content_q: Query<(&mut ScrollableContent, &Node)>,
+    mut content_q: Query<&mut ScrollableContent>,
 ) {
     for t in touches.iter() {
         let Some(touch) = touches.get_pressed(t.id()) else {
             continue;
         };
 
-        for (children, &interaction, node) in q.iter_mut() {
+        for (children, &interaction) in q.iter_mut() {
             if interaction != Interaction::Pressed {
                 continue;
             }
-            let container_height = node.size().y;
+            for child in children.iter() {
-            for &child in children.iter() {
+                let Ok(mut scroll) = content_q.get_mut(child) else {
-                if let Ok(item) = content_q.get_mut(child) {
+                    continue;
-                    let mut scroll = item.0;
+                };
-                    let max_scroll = (item.1.size().y - container_height).max(0.0);
+                scroll.scroll_by(touch.delta().y);
-                    scroll.pos_y += touch.delta().y;
-                    scroll.pos_y = scroll.pos_y.clamp(-max_scroll, 0.);
-                }
             }
         }
     }
@@ -125,38 +198,36 @@ fn input_touch_pressed_move(
 
 fn scroll_events(
     mut scroll_evr: EventReader<MouseWheel>,
-    mut q: Query<(&Children, &Interaction, &ScrollView, &Node), With<ScrollView>>,
+    mut q: Query<(&Children, &Interaction, &ScrollView), With<ScrollView>>,
     time: Res<Time>,
-    mut content_q: Query<(&mut ScrollableContent, &Node)>,
+    mut content_q: Query<&mut ScrollableContent>,
 ) {
     use bevy::input::mouse::MouseScrollUnit;
     for ev in scroll_evr.read() {
-        for (children, &interaction, scroll_view, node) in q.iter_mut() {
+        for (children, &interaction, scroll_view) in q.iter_mut() {
+            if interaction != Interaction::Hovered {
+                continue;
+            }
             let y = match ev.unit {
                 MouseScrollUnit::Line => {
                     ev.y * time.delta().as_secs_f32() * scroll_view.scroll_speed
                 }
                 MouseScrollUnit::Pixel => ev.y,
             };
-            if interaction != Interaction::Hovered {
+            #[cfg(feature = "extra_logs")]
+            info!("Scroolling by {:#?}: {} movement", ev.unit, y);
+
+            for child in children.iter() {
+                let Ok(mut scroll) = content_q.get_mut(child) else {
                     continue;
-            }
+                };
-            let container_height = node.size().y;
+                scroll.scroll_by(y);
-
-            for &child in children.iter() {
-                if let Ok(item) = content_q.get_mut(child) {
-                    let y = y * time.delta().as_secs_f32() * scroll_view.scroll_speed;
-                    let mut scroll = item.0;
-                    let max_scroll = (item.1.size().y - container_height).max(0.0);
-                    scroll.pos_y += y;
-                    scroll.pos_y = scroll.pos_y.clamp(-max_scroll, 0.);
-                }
             }
         }
     }
 }
 
-fn scroll_update(mut q: Query<(&ScrollableContent, &mut Style), Changed<ScrollableContent>>) {
+fn scroll_update(mut q: Query<(&ScrollableContent, &mut Node), Changed<ScrollableContent>>) {
     for (scroll, mut style) in q.iter_mut() {
         style.top = Val::Px(scroll.pos_y);
     }