642 lines
27 KiB
Rust
642 lines
27 KiB
Rust
//! Utility functions for applying layout attributes to taffy layout
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/*
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- [ ] pub display: Display, ----> taffy doesnt support all display types
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- [x] pub position: Position, --> taffy doesnt support everything
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- [x] pub direction: Direction,
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- [x] pub flex_direction: FlexDirection,
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- [x] pub flex_wrap: FlexWrap,
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- [x] pub flex_grow: f32,
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- [x] pub flex_shrink: f32,
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- [x] pub flex_basis: Dimension,
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- [x]pub grid_auto_flow: GridAutoFlow,
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- [x]pub grid_template_rows: GridTrackVec<TrackSizingFunction>,
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- [x]pub grid_template_columns: GridTrackVec<TrackSizingFunction>,
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- [x]pub grid_auto_rows: GridTrackVec<NonRepeatedTrackSizingFunction>,
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- [x]pub grid_auto_columns: GridTrackVec<NonRepeatedTrackSizingFunction>,
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- [x]pub grid_row: Line<GridPlacement>,
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- [x]pub grid_column: Line<GridPlacement>,
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- [x] pub overflow: Overflow, ---> taffy doesnt have support for directional overflow
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- [x] pub align_items: AlignItems,
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- [x] pub align_self: AlignSelf,
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- [x] pub align_content: AlignContent,
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- [x] pub margin: Rect<Dimension>,
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- [x] pub padding: Rect<Dimension>,
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- [x] pub justify_content: JustifyContent,
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- [x] pub inset: Rect<Dimension>,
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- [x] pub border: Rect<Dimension>,
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- [ ] pub size: Size<Dimension>, ----> seems to only be relevant for input?
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- [ ] pub min_size: Size<Dimension>,
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- [ ] pub max_size: Size<Dimension>,
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- [x] pub aspect_ratio: Number,
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*/
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use lightningcss::properties::border::LineStyle;
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use lightningcss::properties::grid::{TrackBreadth, TrackSizing};
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use lightningcss::properties::{align, border, display, flex, grid, position, size};
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use lightningcss::values::percentage::Percentage;
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use lightningcss::{
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properties::{Property, PropertyId},
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stylesheet::ParserOptions,
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traits::Parse,
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values::{
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length::{Length, LengthPercentageOrAuto, LengthValue},
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percentage::DimensionPercentage,
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ratio::Ratio,
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},
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};
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use taffy::{
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prelude::*,
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style::{FlexDirection, Position},
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};
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/// Default values for layout attributes
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#[derive(Default)]
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pub struct LayoutConfigeration {
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/// the default border widths to use
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pub border_widths: BorderWidths,
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}
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/// Default border widths
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pub struct BorderWidths {
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/// the default border width to use for thin borders
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pub thin: f32,
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/// the default border width to use for medium borders
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pub medium: f32,
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/// the default border width to use for thick borders
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pub thick: f32,
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}
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impl Default for BorderWidths {
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fn default() -> Self {
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Self {
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thin: 1.0,
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medium: 3.0,
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thick: 5.0,
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}
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}
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}
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/// applies the entire html namespace defined in dioxus-html
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pub fn apply_layout_attributes(name: &str, value: &str, style: &mut Style) {
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apply_layout_attributes_cfg(name, value, style, &LayoutConfigeration::default())
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}
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/// applies the entire html namespace defined in dioxus-html with the specified configeration
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pub fn apply_layout_attributes_cfg(
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name: &str,
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value: &str,
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style: &mut Style,
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config: &LayoutConfigeration,
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) {
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if let Ok(property) =
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Property::parse_string(PropertyId::from(name), value, ParserOptions::default())
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{
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match property {
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Property::Display(display) => match display {
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display::Display::Keyword(display::DisplayKeyword::None) => {
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style.display = Display::None
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}
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display::Display::Pair(pair) => match pair.inside {
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display::DisplayInside::Flex(_) => {
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style.display = Display::Flex;
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}
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display::DisplayInside::Grid => {
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style.display = Display::Grid;
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}
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_ => {}
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},
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_ => {}
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},
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Property::Position(position) => {
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style.position = match position {
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position::Position::Relative => Position::Relative,
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position::Position::Absolute => Position::Absolute,
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_ => return,
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}
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}
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Property::Top(top) => style.inset.top = convert_length_percentage_or_auto(top),
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Property::Bottom(bottom) => {
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style.inset.bottom = convert_length_percentage_or_auto(bottom)
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}
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Property::Left(left) => style.inset.left = convert_length_percentage_or_auto(left),
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Property::Right(right) => style.inset.right = convert_length_percentage_or_auto(right),
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Property::Inset(inset) => {
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style.inset.top = convert_length_percentage_or_auto(inset.top);
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style.inset.bottom = convert_length_percentage_or_auto(inset.bottom);
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style.inset.left = convert_length_percentage_or_auto(inset.left);
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style.inset.right = convert_length_percentage_or_auto(inset.right);
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}
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Property::BorderTopWidth(width) => {
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style.border.top = convert_border_side_width(width, &config.border_widths);
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}
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Property::BorderBottomWidth(width) => {
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style.border.bottom = convert_border_side_width(width, &config.border_widths);
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}
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Property::BorderLeftWidth(width) => {
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style.border.left = convert_border_side_width(width, &config.border_widths);
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}
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Property::BorderRightWidth(width) => {
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style.border.right = convert_border_side_width(width, &config.border_widths);
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}
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Property::BorderWidth(width) => {
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style.border.top = convert_border_side_width(width.top, &config.border_widths);
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style.border.bottom =
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convert_border_side_width(width.bottom, &config.border_widths);
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style.border.left = convert_border_side_width(width.left, &config.border_widths);
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style.border.right = convert_border_side_width(width.right, &config.border_widths);
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}
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Property::Border(border) => {
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let width = convert_border_side_width(border.width, &config.border_widths);
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style.border.top = width;
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style.border.bottom = width;
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style.border.left = width;
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style.border.right = width;
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}
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Property::BorderTop(top) => {
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style.border.top = convert_border_side_width(top.width, &config.border_widths);
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}
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Property::BorderBottom(bottom) => {
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style.border.bottom =
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convert_border_side_width(bottom.width, &config.border_widths);
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}
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Property::BorderLeft(left) => {
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style.border.left = convert_border_side_width(left.width, &config.border_widths);
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}
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Property::BorderRight(right) => {
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style.border.right = convert_border_side_width(right.width, &config.border_widths);
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}
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Property::BorderTopStyle(line_style) => {
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if line_style != LineStyle::None {
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style.border.top = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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}
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Property::BorderBottomStyle(line_style) => {
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if line_style != LineStyle::None {
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style.border.bottom = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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}
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Property::BorderLeftStyle(line_style) => {
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if line_style != LineStyle::None {
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style.border.left = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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}
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Property::BorderRightStyle(line_style) => {
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if line_style != LineStyle::None {
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style.border.right = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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}
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Property::BorderStyle(styles) => {
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if styles.top != LineStyle::None {
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style.border.top = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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if styles.bottom != LineStyle::None {
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style.border.bottom = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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if styles.left != LineStyle::None {
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style.border.left = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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if styles.right != LineStyle::None {
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style.border.right = convert_border_side_width(
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border::BorderSideWidth::Medium,
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&config.border_widths,
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);
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}
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}
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// Flexbox properties
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Property::FlexDirection(flex_direction, _) => {
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use FlexDirection::*;
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style.flex_direction = match flex_direction {
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flex::FlexDirection::Row => Row,
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flex::FlexDirection::RowReverse => RowReverse,
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flex::FlexDirection::Column => Column,
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flex::FlexDirection::ColumnReverse => ColumnReverse,
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}
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}
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Property::FlexWrap(wrap, _) => {
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use FlexWrap::*;
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style.flex_wrap = match wrap {
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flex::FlexWrap::NoWrap => NoWrap,
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flex::FlexWrap::Wrap => Wrap,
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flex::FlexWrap::WrapReverse => WrapReverse,
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}
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}
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Property::FlexGrow(grow, _) => {
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style.flex_grow = grow;
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}
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Property::FlexShrink(shrink, _) => {
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style.flex_shrink = shrink;
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}
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Property::FlexBasis(basis, _) => {
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style.flex_basis = convert_length_percentage_or_auto(basis).into();
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}
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Property::Flex(flex, _) => {
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style.flex_grow = flex.grow;
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style.flex_shrink = flex.shrink;
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style.flex_basis = convert_length_percentage_or_auto(flex.basis).into();
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}
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// Grid properties
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Property::GridAutoFlow(grid_auto_flow) => {
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let is_row = grid_auto_flow.contains(grid::GridAutoFlow::Row);
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let is_dense = grid_auto_flow.contains(grid::GridAutoFlow::Dense);
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style.grid_auto_flow = match (is_row, is_dense) {
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(true, false) => GridAutoFlow::Row,
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(false, false) => GridAutoFlow::Column,
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(true, true) => GridAutoFlow::RowDense,
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(false, true) => GridAutoFlow::ColumnDense,
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};
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}
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Property::GridTemplateColumns(TrackSizing::TrackList(track_list)) => {
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style.grid_template_columns = track_list
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.items
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.into_iter()
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.map(convert_grid_track_item)
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.collect();
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}
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Property::GridTemplateRows(TrackSizing::TrackList(track_list)) => {
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style.grid_template_rows = track_list
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.items
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.into_iter()
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.map(convert_grid_track_item)
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.collect();
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}
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Property::GridAutoColumns(grid::TrackSizeList(track_size_list)) => {
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style.grid_auto_columns = track_size_list
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.into_iter()
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.map(convert_grid_track_size)
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.collect();
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}
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Property::GridAutoRows(grid::TrackSizeList(track_size_list)) => {
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style.grid_auto_rows = track_size_list
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.into_iter()
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.map(convert_grid_track_size)
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.collect();
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}
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Property::GridRow(grid_row) => {
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style.grid_row = Line {
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start: convert_grid_placement(grid_row.start),
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end: convert_grid_placement(grid_row.end),
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};
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}
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Property::GridColumn(grid_column) => {
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style.grid_column = Line {
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start: convert_grid_placement(grid_column.start),
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end: convert_grid_placement(grid_column.end),
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};
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}
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// Alignment properties
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Property::AlignContent(align, _) => {
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use AlignContent::*;
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style.align_content = match align {
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align::AlignContent::ContentDistribution(distribution) => match distribution {
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align::ContentDistribution::SpaceBetween => Some(SpaceBetween),
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align::ContentDistribution::SpaceAround => Some(SpaceAround),
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align::ContentDistribution::SpaceEvenly => Some(SpaceEvenly),
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align::ContentDistribution::Stretch => Some(Stretch),
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},
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align::AlignContent::ContentPosition {
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value: position, ..
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} => match position {
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align::ContentPosition::Center => Some(Center),
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align::ContentPosition::Start => Some(Start),
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align::ContentPosition::FlexStart => Some(FlexStart),
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align::ContentPosition::End => Some(End),
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align::ContentPosition::FlexEnd => Some(FlexEnd),
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},
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_ => return,
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};
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}
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Property::JustifyContent(justify, _) => {
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use AlignContent::*;
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style.justify_content = match justify {
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align::JustifyContent::ContentDistribution(distribution) => {
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match distribution {
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align::ContentDistribution::SpaceBetween => Some(SpaceBetween),
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align::ContentDistribution::SpaceAround => Some(SpaceAround),
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align::ContentDistribution::SpaceEvenly => Some(SpaceEvenly),
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_ => return,
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}
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}
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align::JustifyContent::ContentPosition {
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value: position, ..
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} => match position {
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align::ContentPosition::Center => Some(Center),
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align::ContentPosition::Start => Some(Start),
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align::ContentPosition::FlexStart => Some(FlexStart),
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align::ContentPosition::End => Some(End),
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align::ContentPosition::FlexEnd => Some(FlexEnd),
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},
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_ => return,
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};
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}
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Property::AlignSelf(align, _) => {
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use AlignItems::*;
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style.align_self = match align {
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align::AlignSelf::Auto => None,
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align::AlignSelf::Stretch => Some(Stretch),
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align::AlignSelf::BaselinePosition(_) => Some(Baseline),
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align::AlignSelf::SelfPosition {
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value: position, ..
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} => match position {
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align::SelfPosition::Center => Some(Center),
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align::SelfPosition::Start | align::SelfPosition::SelfStart => Some(Start),
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align::SelfPosition::FlexStart => Some(FlexStart),
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align::SelfPosition::End | align::SelfPosition::SelfEnd => Some(End),
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align::SelfPosition::FlexEnd => Some(FlexEnd),
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},
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_ => return,
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};
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}
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Property::AlignItems(align, _) => {
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use AlignItems::*;
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style.align_items = match align {
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align::AlignItems::BaselinePosition(_) => Some(Baseline),
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align::AlignItems::Stretch => Some(Stretch),
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align::AlignItems::SelfPosition {
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value: position, ..
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} => match position {
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align::SelfPosition::Center => Some(Center),
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align::SelfPosition::FlexStart => Some(FlexStart),
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align::SelfPosition::FlexEnd => Some(FlexEnd),
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align::SelfPosition::Start | align::SelfPosition::SelfStart => {
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Some(FlexEnd)
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}
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align::SelfPosition::End | align::SelfPosition::SelfEnd => Some(FlexEnd),
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},
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_ => return,
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};
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}
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Property::RowGap(row_gap) => {
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style.gap.width = convert_gap_value(row_gap);
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}
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Property::ColumnGap(column_gap) => {
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style.gap.height = convert_gap_value(column_gap);
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}
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Property::Gap(gap) => {
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style.gap = Size {
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width: convert_gap_value(gap.row),
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height: convert_gap_value(gap.column),
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};
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}
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Property::MarginTop(margin) => {
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style.margin.top = convert_length_percentage_or_auto(margin);
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}
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Property::MarginBottom(margin) => {
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style.margin.bottom = convert_length_percentage_or_auto(margin);
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}
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Property::MarginLeft(margin) => {
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style.margin.left = convert_length_percentage_or_auto(margin);
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}
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Property::MarginRight(margin) => {
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style.margin.right = convert_length_percentage_or_auto(margin);
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}
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Property::Margin(margin) => {
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style.margin = Rect {
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top: convert_length_percentage_or_auto(margin.top),
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bottom: convert_length_percentage_or_auto(margin.bottom),
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left: convert_length_percentage_or_auto(margin.left),
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right: convert_length_percentage_or_auto(margin.right),
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};
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}
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Property::PaddingTop(padding) => {
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style.padding.top = convert_padding(padding);
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}
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Property::PaddingBottom(padding) => {
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style.padding.bottom = convert_padding(padding);
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}
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Property::PaddingLeft(padding) => {
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style.padding.left = convert_padding(padding);
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}
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Property::PaddingRight(padding) => {
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style.padding.right = convert_padding(padding);
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}
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Property::Padding(padding) => {
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style.padding = Rect {
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top: convert_padding(padding.top),
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bottom: convert_padding(padding.bottom),
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left: convert_padding(padding.left),
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right: convert_padding(padding.right),
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};
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}
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Property::Width(width) => {
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style.size.width = convert_size(width);
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}
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Property::Height(height) => {
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style.size.height = convert_size(height);
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}
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_ => (),
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}
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// currently not implemented in lightningcss
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if name == "aspect-ratio" {
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if let Ok(ratio) = Ratio::parse_string(value) {
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style.aspect_ratio = Some(ratio.0 / ratio.1);
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}
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}
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}
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}
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fn extract_px_value(length_value: LengthValue) -> f32 {
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match length_value {
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LengthValue::Px(value) => value,
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_ => todo!(),
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}
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}
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fn convert_length_percentage(
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dimension_percentage: DimensionPercentage<LengthValue>,
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) -> LengthPercentage {
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match dimension_percentage {
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DimensionPercentage::Dimension(value) => LengthPercentage::Points(extract_px_value(value)),
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DimensionPercentage::Percentage(percentage) => LengthPercentage::Percent(percentage.0),
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DimensionPercentage::Calc(_) => todo!(),
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}
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}
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fn convert_padding(dimension_percentage: LengthPercentageOrAuto) -> LengthPercentage {
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match dimension_percentage {
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LengthPercentageOrAuto::Auto => unimplemented!(),
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LengthPercentageOrAuto::LengthPercentage(lp) => match lp {
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DimensionPercentage::Dimension(value) => {
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LengthPercentage::Points(extract_px_value(value))
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}
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DimensionPercentage::Percentage(percentage) => LengthPercentage::Percent(percentage.0),
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DimensionPercentage::Calc(_) => unimplemented!(),
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},
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|
}
|
|
}
|
|
|
|
fn convert_length_percentage_or_auto(
|
|
dimension_percentage: LengthPercentageOrAuto,
|
|
) -> LengthPercentageAuto {
|
|
match dimension_percentage {
|
|
LengthPercentageOrAuto::Auto => LengthPercentageAuto::Auto,
|
|
LengthPercentageOrAuto::LengthPercentage(lp) => match lp {
|
|
DimensionPercentage::Dimension(value) => {
|
|
LengthPercentageAuto::Points(extract_px_value(value))
|
|
}
|
|
DimensionPercentage::Percentage(percentage) => {
|
|
LengthPercentageAuto::Percent(percentage.0)
|
|
}
|
|
DimensionPercentage::Calc(_) => todo!(),
|
|
},
|
|
}
|
|
}
|
|
|
|
fn convert_dimension(dimension_percentage: DimensionPercentage<LengthValue>) -> Dimension {
|
|
match dimension_percentage {
|
|
DimensionPercentage::Dimension(value) => Dimension::Points(extract_px_value(value)),
|
|
DimensionPercentage::Percentage(percentage) => Dimension::Percent(percentage.0),
|
|
DimensionPercentage::Calc(_) => todo!(),
|
|
}
|
|
}
|
|
|
|
fn convert_border_side_width(
|
|
border_side_width: border::BorderSideWidth,
|
|
border_width_config: &BorderWidths,
|
|
) -> LengthPercentage {
|
|
match border_side_width {
|
|
border::BorderSideWidth::Length(Length::Value(value)) => {
|
|
LengthPercentage::Points(extract_px_value(value))
|
|
}
|
|
border::BorderSideWidth::Thick => LengthPercentage::Points(border_width_config.thick),
|
|
border::BorderSideWidth::Medium => LengthPercentage::Points(border_width_config.medium),
|
|
border::BorderSideWidth::Thin => LengthPercentage::Points(border_width_config.thin),
|
|
border::BorderSideWidth::Length(_) => unimplemented!(),
|
|
}
|
|
}
|
|
|
|
fn convert_gap_value(gap_value: align::GapValue) -> LengthPercentage {
|
|
match gap_value {
|
|
align::GapValue::LengthPercentage(dim) => convert_length_percentage(dim),
|
|
align::GapValue::Normal => LengthPercentage::Points(0.0),
|
|
}
|
|
}
|
|
|
|
fn convert_size(size: size::Size) -> Dimension {
|
|
match size {
|
|
size::Size::Auto => Dimension::Auto,
|
|
size::Size::LengthPercentage(length) => convert_dimension(length),
|
|
size::Size::MinContent(_) => Dimension::Auto, // Unimplemented, so default auto
|
|
size::Size::MaxContent(_) => Dimension::Auto, // Unimplemented, so default auto
|
|
size::Size::FitContent(_) => Dimension::Auto, // Unimplemented, so default auto
|
|
size::Size::FitContentFunction(_) => Dimension::Auto, // Unimplemented, so default auto
|
|
size::Size::Stretch(_) => Dimension::Auto, // Unimplemented, so default auto
|
|
size::Size::Contain => Dimension::Auto, // Unimplemented, so default auto
|
|
}
|
|
}
|
|
|
|
fn convert_grid_placement(input: grid::GridLine) -> GridPlacement {
|
|
match input {
|
|
grid::GridLine::Auto => GridPlacement::Auto,
|
|
grid::GridLine::Line { index, .. } => line(index as i16),
|
|
grid::GridLine::Span { index, .. } => span(index as u16),
|
|
grid::GridLine::Area { .. } => unimplemented!(),
|
|
}
|
|
}
|
|
|
|
fn convert_grid_track_item(input: grid::TrackListItem) -> TrackSizingFunction {
|
|
match input {
|
|
grid::TrackListItem::TrackSize(size) => {
|
|
TrackSizingFunction::Single(convert_grid_track_size(size))
|
|
}
|
|
grid::TrackListItem::TrackRepeat(_) => todo!(), // TODO: requires TrackRepeat fields to be public!
|
|
}
|
|
}
|
|
|
|
fn convert_grid_track_size(input: grid::TrackSize) -> NonRepeatedTrackSizingFunction {
|
|
match input {
|
|
grid::TrackSize::TrackBreadth(breadth) => minmax(
|
|
convert_track_breadth_min(&breadth),
|
|
convert_track_breadth_max(&breadth),
|
|
),
|
|
grid::TrackSize::MinMax { min, max } => minmax(
|
|
convert_track_breadth_min(&min),
|
|
convert_track_breadth_max(&max),
|
|
),
|
|
grid::TrackSize::FitContent(limit) => match limit {
|
|
DimensionPercentage::Dimension(LengthValue::Px(len)) => minmax(auto(), points(len)),
|
|
DimensionPercentage::Percentage(Percentage(pct)) => minmax(auto(), percent(pct)),
|
|
_ => unimplemented!(),
|
|
},
|
|
}
|
|
}
|
|
|
|
fn convert_track_breadth_max(breadth: &TrackBreadth) -> MaxTrackSizingFunction {
|
|
match breadth {
|
|
grid::TrackBreadth::Length(length_percentage) => match length_percentage {
|
|
DimensionPercentage::Dimension(LengthValue::Px(len)) => points(*len),
|
|
DimensionPercentage::Percentage(Percentage(pct)) => percent(*pct),
|
|
_ => unimplemented!(),
|
|
},
|
|
grid::TrackBreadth::Flex(fraction) => fr(*fraction),
|
|
grid::TrackBreadth::MinContent => MaxTrackSizingFunction::MinContent,
|
|
grid::TrackBreadth::MaxContent => MaxTrackSizingFunction::MaxContent,
|
|
grid::TrackBreadth::Auto => MaxTrackSizingFunction::Auto,
|
|
}
|
|
}
|
|
|
|
fn convert_track_breadth_min(breadth: &TrackBreadth) -> MinTrackSizingFunction {
|
|
match breadth {
|
|
grid::TrackBreadth::Length(length_percentage) => match length_percentage {
|
|
DimensionPercentage::Dimension(LengthValue::Px(len)) => points(*len),
|
|
DimensionPercentage::Percentage(Percentage(pct)) => percent(*pct),
|
|
_ => unimplemented!(),
|
|
},
|
|
grid::TrackBreadth::MinContent => MinTrackSizingFunction::MinContent,
|
|
grid::TrackBreadth::MaxContent => MinTrackSizingFunction::MaxContent,
|
|
grid::TrackBreadth::Auto => MinTrackSizingFunction::Auto,
|
|
grid::TrackBreadth::Flex(_) => MinTrackSizingFunction::Auto,
|
|
}
|
|
}
|
|
|
|
/// parse relative or absolute value
|
|
pub fn parse_value(value: &str) -> Option<Dimension> {
|
|
if value.ends_with("px") {
|
|
if let Ok(px) = value.trim_end_matches("px").parse::<f32>() {
|
|
Some(Dimension::Points(px))
|
|
} else {
|
|
None
|
|
}
|
|
} else if value.ends_with('%') {
|
|
if let Ok(pct) = value.trim_end_matches('%').parse::<f32>() {
|
|
Some(Dimension::Percent(pct / 100.0))
|
|
} else {
|
|
None
|
|
}
|
|
} else {
|
|
None
|
|
}
|
|
}
|