848 lines
28 KiB
Rust
848 lines
28 KiB
Rust
use anyhow::{anyhow, Result};
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use element::pane_axis;
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use gpui::{
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div, point, size, AnyView, AnyWeakView, Axis, Bounds, Element as _, IntoElement,
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ParentElement as _, Pixels, Point, StyleRefinement, Styled as _, View, ViewContext,
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};
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use parking_lot::Mutex;
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use serde::Deserialize;
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use std::sync::Arc;
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use ui::StyledExt as _;
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use super::{pane::Pane, workspace::Workspace};
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pub const HANDLE_HITBOX_SIZE: f32 = 4.0;
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const HORIZONTAL_MIN_SIZE: f32 = 80.;
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const VERTICAL_MIN_SIZE: f32 = 100.;
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/// One or many panes, arranged in a horizontal or vertical axis due to a split.
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/// Panes have all their tabs and capabilities preserved, and can be split again or resized.
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/// Single-pane group is a regular pane.
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#[derive(Clone)]
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pub struct PaneGroup {
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pub(crate) root: Member,
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}
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impl PaneGroup {
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pub fn new(pane: View<Pane>) -> Self {
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Self {
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root: Member::Pane(pane),
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}
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}
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pub fn split(
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&mut self,
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old_pane: &View<Pane>,
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new_pane: &View<Pane>,
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direction: SplitDirection,
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) -> Result<()> {
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match &mut self.root {
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Member::Pane(pane) => {
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if pane == old_pane {
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self.root = Member::new_axis(old_pane.clone(), new_pane.clone(), direction);
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Ok(())
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} else {
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Err(anyhow!("Pane not found"))
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}
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}
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Member::Axis(axis) => axis.split(old_pane, new_pane, direction),
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}
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}
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pub fn bounding_box_for_pane(&self, pane: &View<Pane>) -> Option<Bounds<Pixels>> {
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match &self.root {
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Member::Pane(_) => None,
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Member::Axis(axis) => axis.bounding_box_for_pane(pane),
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}
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}
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pub fn pane_at_pixel_position(&self, coordinate: Point<Pixels>) -> Option<&View<Pane>> {
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match &self.root {
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Member::Pane(pane) => Some(pane),
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Member::Axis(axis) => axis.pane_at_pixel_position(coordinate),
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}
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}
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/// Returns:
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/// - Ok(true) if it found and removed a pane
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/// - Ok(false) if it found but did not remove the pane
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/// - Err(_) if it did not find the pane
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pub fn remove(&mut self, pane: &View<Pane>) -> Result<bool> {
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match &mut self.root {
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Member::Pane(_) => Ok(false),
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Member::Axis(axis) => {
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if let Some(last_pane) = axis.remove(pane)? {
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self.root = last_pane;
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}
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Ok(true)
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}
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}
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}
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pub fn swap(&mut self, from: &View<Pane>, to: &View<Pane>) {
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match &mut self.root {
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Member::Pane(_) => {}
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Member::Axis(axis) => axis.swap(from, to),
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};
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}
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#[allow(clippy::too_many_arguments)]
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pub(crate) fn render(
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&self,
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active_pane: &View<Pane>,
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zoomed: Option<&AnyWeakView>,
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cx: &mut ViewContext<Workspace>,
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) -> impl IntoElement {
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self.root.render(0, active_pane, zoomed, cx)
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}
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pub(crate) fn panes(&self) -> Vec<&View<Pane>> {
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let mut panes = Vec::new();
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self.root.collect_panes(&mut panes);
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panes
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}
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#[allow(unused)]
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pub(crate) fn first_pane(&self) -> View<Pane> {
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self.root.first_pane()
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}
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}
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#[derive(Clone)]
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pub(crate) enum Member {
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Axis(PaneAxis),
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Pane(View<Pane>),
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}
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impl Member {
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fn new_axis(old_pane: View<Pane>, new_pane: View<Pane>, direction: SplitDirection) -> Self {
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use Axis::*;
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use SplitDirection::*;
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let axis = match direction {
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Up | Down => Vertical,
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Left | Right => Horizontal,
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};
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let members = match direction {
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Up | Left => vec![Member::Pane(new_pane), Member::Pane(old_pane)],
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Down | Right => vec![Member::Pane(old_pane), Member::Pane(new_pane)],
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};
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Member::Axis(PaneAxis::new(axis, members))
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}
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fn contains(&self, needle: &View<Pane>) -> bool {
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match self {
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Member::Axis(axis) => axis.members.iter().any(|member| member.contains(needle)),
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Member::Pane(pane) => pane == needle,
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}
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}
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fn first_pane(&self) -> View<Pane> {
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match self {
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Member::Axis(axis) => axis.members[0].first_pane(),
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Member::Pane(pane) => pane.clone(),
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}
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}
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#[allow(clippy::too_many_arguments)]
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pub fn render(
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&self,
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basis: usize,
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active_pane: &View<Pane>,
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zoomed: Option<&AnyWeakView>,
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cx: &mut ViewContext<Workspace>,
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) -> impl IntoElement {
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match self {
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Member::Pane(pane) => {
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if zoomed == Some(&pane.downgrade().into()) {
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return div().into_any();
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}
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div()
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.relative()
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.flex_1()
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.size_full()
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.child(
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AnyView::from(pane.clone())
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.cached(StyleRefinement::default().v_flex().size_full()),
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)
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.into_any()
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}
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Member::Axis(axis) => axis.render(basis + 1, active_pane, zoomed, cx).into_any(),
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}
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}
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fn collect_panes<'a>(&'a self, panes: &mut Vec<&'a View<Pane>>) {
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match self {
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Member::Axis(axis) => {
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for member in &axis.members {
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member.collect_panes(panes);
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}
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}
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Member::Pane(pane) => panes.push(pane),
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}
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}
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}
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#[derive(Clone)]
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pub(crate) struct PaneAxis {
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pub axis: Axis,
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pub members: Vec<Member>,
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pub flexes: Arc<Mutex<Vec<f32>>>,
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pub bounding_boxes: Arc<Mutex<Vec<Option<Bounds<Pixels>>>>>,
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}
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impl PaneAxis {
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pub fn new(axis: Axis, members: Vec<Member>) -> Self {
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let flexes = Arc::new(Mutex::new(vec![1.; members.len()]));
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let bounding_boxes = Arc::new(Mutex::new(vec![None; members.len()]));
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Self {
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axis,
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members,
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flexes,
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bounding_boxes,
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}
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}
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#[allow(unused)]
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pub fn load(axis: Axis, members: Vec<Member>, flexes: Option<Vec<f32>>) -> Self {
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let flexes = flexes.unwrap_or_else(|| vec![1.; members.len()]);
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debug_assert!(members.len() == flexes.len());
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let flexes = Arc::new(Mutex::new(flexes));
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let bounding_boxes = Arc::new(Mutex::new(vec![None; members.len()]));
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Self {
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axis,
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members,
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flexes,
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bounding_boxes,
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}
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}
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fn split(
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&mut self,
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old_pane: &View<Pane>,
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new_pane: &View<Pane>,
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direction: SplitDirection,
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) -> Result<()> {
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for (mut idx, member) in self.members.iter_mut().enumerate() {
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match member {
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Member::Axis(axis) => {
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if axis.split(old_pane, new_pane, direction).is_ok() {
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return Ok(());
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}
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}
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Member::Pane(pane) => {
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if pane == old_pane {
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if direction.axis() == self.axis {
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if direction.increasing() {
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idx += 1;
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}
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self.members.insert(idx, Member::Pane(new_pane.clone()));
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*self.flexes.lock() = vec![1.; self.members.len()];
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} else {
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*member =
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Member::new_axis(old_pane.clone(), new_pane.clone(), direction);
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}
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return Ok(());
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}
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}
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}
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}
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Err(anyhow!("Pane not found"))
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}
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fn remove(&mut self, pane_to_remove: &View<Pane>) -> Result<Option<Member>> {
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let mut found_pane = false;
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let mut remove_member = None;
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for (idx, member) in self.members.iter_mut().enumerate() {
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match member {
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Member::Axis(axis) => {
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if let Ok(last_pane) = axis.remove(pane_to_remove) {
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if let Some(last_pane) = last_pane {
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*member = last_pane;
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}
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found_pane = true;
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break;
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}
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}
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Member::Pane(pane) => {
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if pane == pane_to_remove {
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found_pane = true;
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remove_member = Some(idx);
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break;
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}
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}
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}
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}
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if found_pane {
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if let Some(idx) = remove_member {
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self.members.remove(idx);
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*self.flexes.lock() = vec![1.; self.members.len()];
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}
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if self.members.len() == 1 {
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let result = self.members.pop();
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*self.flexes.lock() = vec![1.; self.members.len()];
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Ok(result)
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} else {
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Ok(None)
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}
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} else {
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Err(anyhow!("Pane not found"))
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}
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}
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fn swap(&mut self, from: &View<Pane>, to: &View<Pane>) {
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for member in self.members.iter_mut() {
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match member {
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Member::Axis(axis) => axis.swap(from, to),
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Member::Pane(pane) => {
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if pane == from {
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*member = Member::Pane(to.clone());
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} else if pane == to {
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*member = Member::Pane(from.clone())
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}
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}
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}
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}
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}
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fn bounding_box_for_pane(&self, pane: &View<Pane>) -> Option<Bounds<Pixels>> {
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debug_assert!(self.members.len() == self.bounding_boxes.lock().len());
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for (idx, member) in self.members.iter().enumerate() {
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match member {
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Member::Pane(found) => {
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if pane == found {
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return self.bounding_boxes.lock()[idx];
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}
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}
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Member::Axis(axis) => {
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if let Some(rect) = axis.bounding_box_for_pane(pane) {
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return Some(rect);
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}
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}
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}
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}
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None
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}
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fn pane_at_pixel_position(&self, coordinate: Point<Pixels>) -> Option<&View<Pane>> {
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debug_assert!(self.members.len() == self.bounding_boxes.lock().len());
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let bounding_boxes = self.bounding_boxes.lock();
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for (idx, member) in self.members.iter().enumerate() {
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if let Some(coordinates) = bounding_boxes[idx] {
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if coordinates.contains(&coordinate) {
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return match member {
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Member::Pane(found) => Some(found),
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Member::Axis(axis) => axis.pane_at_pixel_position(coordinate),
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};
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}
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}
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}
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None
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}
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#[allow(clippy::too_many_arguments)]
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fn render(
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&self,
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basis: usize,
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active_pane: &View<Pane>,
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zoomed: Option<&AnyWeakView>,
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cx: &mut ViewContext<Workspace>,
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) -> gpui::AnyElement {
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debug_assert!(self.members.len() == self.flexes.lock().len());
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let mut active_pane_ix = None;
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pane_axis(
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self.axis,
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basis,
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self.flexes.clone(),
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self.bounding_boxes.clone(),
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cx.view().downgrade(),
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)
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.children(self.members.iter().enumerate().map(|(ix, member)| {
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if member.contains(active_pane) {
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active_pane_ix = Some(ix);
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}
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member
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.render((basis + ix) * 10, active_pane, zoomed, cx)
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.into_any_element()
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}))
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.with_active_pane(active_pane_ix)
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.into_any_element()
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}
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}
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#[derive(Clone, Copy, Debug, Deserialize, PartialEq)]
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pub enum SplitDirection {
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Up,
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Down,
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Left,
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Right,
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}
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impl std::fmt::Display for SplitDirection {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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match self {
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SplitDirection::Up => write!(f, "up"),
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SplitDirection::Down => write!(f, "down"),
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SplitDirection::Left => write!(f, "left"),
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SplitDirection::Right => write!(f, "right"),
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}
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}
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}
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impl SplitDirection {
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pub fn all() -> [Self; 4] {
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[Self::Up, Self::Down, Self::Left, Self::Right]
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}
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pub fn edge(&self, rect: Bounds<Pixels>) -> Pixels {
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match self {
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Self::Up => rect.origin.y,
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Self::Down => rect.lower_left().y,
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Self::Left => rect.lower_left().x,
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Self::Right => rect.lower_right().x,
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}
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}
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pub fn along_edge(&self, bounds: Bounds<Pixels>, length: Pixels) -> Bounds<Pixels> {
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match self {
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Self::Up => Bounds {
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origin: bounds.origin,
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size: size(bounds.size.width, length),
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},
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Self::Down => Bounds {
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origin: point(bounds.lower_left().x, bounds.lower_left().y - length),
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size: size(bounds.size.width, length),
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},
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Self::Left => Bounds {
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origin: bounds.origin,
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size: size(length, bounds.size.height),
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},
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Self::Right => Bounds {
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origin: point(bounds.lower_right().x - length, bounds.lower_left().y),
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size: size(length, bounds.size.height),
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},
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}
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}
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pub fn axis(&self) -> Axis {
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match self {
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Self::Up | Self::Down => Axis::Vertical,
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Self::Left | Self::Right => Axis::Horizontal,
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}
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}
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pub fn increasing(&self) -> bool {
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match self {
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Self::Left | Self::Up => false,
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Self::Down | Self::Right => true,
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}
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}
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}
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|
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mod element {
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|
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use std::mem;
|
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use std::{cell::RefCell, iter, rc::Rc, sync::Arc};
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|
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use crate::util::ResultExt;
|
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use gpui::{
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px, relative, Along, AnyElement, Axis, Bounds, Element, ElementId, GlobalElementId,
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IntoElement, MouseDownEvent, MouseMoveEvent, MouseUpEvent, ParentElement, Pixels, Point,
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Size, Style, WeakView, WindowContext,
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};
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use gpui::{CursorStyle, Hitbox};
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use parking_lot::Mutex;
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use smallvec::SmallVec;
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use ui::theme::ActiveTheme;
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|
|
|
use crate::Workspace;
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|
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use super::{HANDLE_HITBOX_SIZE, HORIZONTAL_MIN_SIZE, VERTICAL_MIN_SIZE};
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|
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const DIVIDER_SIZE: f32 = 1.0;
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|
|
|
pub(super) fn pane_axis(
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axis: Axis,
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basis: usize,
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flexes: Arc<Mutex<Vec<f32>>>,
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bounding_boxes: Arc<Mutex<Vec<Option<Bounds<Pixels>>>>>,
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workspace: WeakView<Workspace>,
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) -> PaneAxisElement {
|
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PaneAxisElement {
|
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axis,
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basis,
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flexes,
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bounding_boxes,
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children: SmallVec::new(),
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|
active_pane_ix: None,
|
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workspace,
|
|
}
|
|
}
|
|
|
|
pub struct PaneAxisElement {
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axis: Axis,
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basis: usize,
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flexes: Arc<Mutex<Vec<f32>>>,
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bounding_boxes: Arc<Mutex<Vec<Option<Bounds<Pixels>>>>>,
|
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children: SmallVec<[AnyElement; 2]>,
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active_pane_ix: Option<usize>,
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workspace: WeakView<Workspace>,
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|
}
|
|
|
|
pub struct PaneAxisLayout {
|
|
dragged_handle: Rc<RefCell<Option<usize>>>,
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children: Vec<PaneAxisChildLayout>,
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}
|
|
|
|
struct PaneAxisChildLayout {
|
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bounds: Bounds<Pixels>,
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element: AnyElement,
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handle: Option<PaneAxisHandleLayout>,
|
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}
|
|
|
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struct PaneAxisHandleLayout {
|
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hitbox: Hitbox,
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divider_bounds: Bounds<Pixels>,
|
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}
|
|
|
|
impl PaneAxisElement {
|
|
pub fn with_active_pane(mut self, active_pane_ix: Option<usize>) -> Self {
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self.active_pane_ix = active_pane_ix;
|
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self
|
|
}
|
|
|
|
#[allow(clippy::too_many_arguments)]
|
|
fn compute_resize(
|
|
flexes: &Arc<Mutex<Vec<f32>>>,
|
|
e: &MouseMoveEvent,
|
|
ix: usize,
|
|
axis: Axis,
|
|
child_start: Point<Pixels>,
|
|
container_size: Size<Pixels>,
|
|
workspace: WeakView<Workspace>,
|
|
cx: &mut WindowContext,
|
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) {
|
|
let min_size = match axis {
|
|
Axis::Horizontal => px(HORIZONTAL_MIN_SIZE),
|
|
Axis::Vertical => px(VERTICAL_MIN_SIZE),
|
|
};
|
|
let mut flexes = flexes.lock();
|
|
debug_assert!(flex_values_in_bounds(flexes.as_slice()));
|
|
|
|
let size = move |ix, flexes: &[f32]| {
|
|
container_size.along(axis) * (flexes[ix] / flexes.len() as f32)
|
|
};
|
|
|
|
// Don't allow resizing to less than the minimum size, if elements are already too small
|
|
if min_size - px(1.) > size(ix, flexes.as_slice()) {
|
|
return;
|
|
}
|
|
|
|
let mut proposed_current_pixel_change =
|
|
(e.position - child_start).along(axis) - size(ix, flexes.as_slice());
|
|
|
|
let flex_changes = |pixel_dx, target_ix, next: isize, flexes: &[f32]| {
|
|
let flex_change = pixel_dx / container_size.along(axis);
|
|
let current_target_flex = flexes[target_ix] + flex_change;
|
|
let next_target_flex = flexes[(target_ix as isize + next) as usize] - flex_change;
|
|
(current_target_flex, next_target_flex)
|
|
};
|
|
|
|
let mut successors = iter::from_fn({
|
|
let forward = proposed_current_pixel_change > px(0.);
|
|
let mut ix_offset = 0;
|
|
let len = flexes.len();
|
|
move || {
|
|
let result = if forward {
|
|
(ix + 1 + ix_offset < len).then(|| ix + ix_offset)
|
|
} else {
|
|
(ix as isize - ix_offset as isize >= 0).then(|| ix - ix_offset)
|
|
};
|
|
|
|
ix_offset += 1;
|
|
|
|
result
|
|
}
|
|
});
|
|
|
|
while proposed_current_pixel_change.abs() > px(0.) {
|
|
let Some(current_ix) = successors.next() else {
|
|
break;
|
|
};
|
|
|
|
let next_target_size = Pixels::max(
|
|
size(current_ix + 1, flexes.as_slice()) - proposed_current_pixel_change,
|
|
min_size,
|
|
);
|
|
|
|
let current_target_size = Pixels::max(
|
|
size(current_ix, flexes.as_slice()) + size(current_ix + 1, flexes.as_slice())
|
|
- next_target_size,
|
|
min_size,
|
|
);
|
|
|
|
let current_pixel_change =
|
|
current_target_size - size(current_ix, flexes.as_slice());
|
|
|
|
let (current_target_flex, next_target_flex) =
|
|
flex_changes(current_pixel_change, current_ix, 1, flexes.as_slice());
|
|
|
|
flexes[current_ix] = current_target_flex;
|
|
flexes[current_ix + 1] = next_target_flex;
|
|
|
|
proposed_current_pixel_change -= current_pixel_change;
|
|
}
|
|
|
|
workspace
|
|
.update(cx, |this, cx| this.serialize_workspace(cx))
|
|
.log_err();
|
|
cx.stop_propagation();
|
|
cx.refresh();
|
|
}
|
|
|
|
#[allow(clippy::too_many_arguments)]
|
|
fn layout_handle(
|
|
axis: Axis,
|
|
pane_bounds: Bounds<Pixels>,
|
|
cx: &mut WindowContext,
|
|
) -> PaneAxisHandleLayout {
|
|
let handle_bounds = Bounds {
|
|
origin: pane_bounds.origin.apply_along(axis, |origin| {
|
|
origin + pane_bounds.size.along(axis) - px(HANDLE_HITBOX_SIZE / 2.)
|
|
}),
|
|
size: pane_bounds
|
|
.size
|
|
.apply_along(axis, |_| px(HANDLE_HITBOX_SIZE)),
|
|
};
|
|
let divider_bounds = Bounds {
|
|
origin: pane_bounds
|
|
.origin
|
|
.apply_along(axis, |origin| origin + pane_bounds.size.along(axis)),
|
|
size: pane_bounds.size.apply_along(axis, |_| px(DIVIDER_SIZE)),
|
|
};
|
|
|
|
PaneAxisHandleLayout {
|
|
hitbox: cx.insert_hitbox(handle_bounds, true),
|
|
divider_bounds,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl IntoElement for PaneAxisElement {
|
|
type Element = Self;
|
|
|
|
fn into_element(self) -> Self::Element {
|
|
self
|
|
}
|
|
}
|
|
|
|
impl Element for PaneAxisElement {
|
|
type RequestLayoutState = ();
|
|
type PrepaintState = PaneAxisLayout;
|
|
|
|
fn id(&self) -> Option<ElementId> {
|
|
Some(self.basis.into())
|
|
}
|
|
|
|
fn request_layout(
|
|
&mut self,
|
|
_global_id: Option<&GlobalElementId>,
|
|
cx: &mut WindowContext,
|
|
) -> (gpui::LayoutId, Self::RequestLayoutState) {
|
|
let mut style = Style::default();
|
|
style.flex_grow = 1.;
|
|
style.flex_shrink = 1.;
|
|
style.flex_basis = relative(0.).into();
|
|
style.size.width = relative(1.).into();
|
|
style.size.height = relative(1.).into();
|
|
(cx.request_layout(style, None), ())
|
|
}
|
|
|
|
fn prepaint(
|
|
&mut self,
|
|
global_id: Option<&GlobalElementId>,
|
|
bounds: Bounds<Pixels>,
|
|
_state: &mut Self::RequestLayoutState,
|
|
cx: &mut WindowContext,
|
|
) -> PaneAxisLayout {
|
|
let dragged_handle = cx.with_element_state::<Rc<RefCell<Option<usize>>>, _>(
|
|
global_id.unwrap(),
|
|
|state, _cx| {
|
|
let state = state.unwrap_or_else(|| Rc::new(RefCell::new(None)));
|
|
(state.clone(), state)
|
|
},
|
|
);
|
|
let flexes = self.flexes.lock().clone();
|
|
let len = self.children.len();
|
|
debug_assert!(flexes.len() == len);
|
|
debug_assert!(flex_values_in_bounds(flexes.as_slice()));
|
|
|
|
let magnification_value = 1.0;
|
|
let active_pane_magnification = if magnification_value == 1. {
|
|
None
|
|
} else {
|
|
Some(magnification_value)
|
|
};
|
|
|
|
let total_flex = if let Some(flex) = active_pane_magnification {
|
|
self.children.len() as f32 - 1. + flex
|
|
} else {
|
|
len as f32
|
|
};
|
|
|
|
let mut origin = bounds.origin;
|
|
let space_per_flex = bounds.size.along(self.axis) / total_flex;
|
|
|
|
let mut bounding_boxes = self.bounding_boxes.lock();
|
|
bounding_boxes.clear();
|
|
|
|
let mut layout = PaneAxisLayout {
|
|
dragged_handle: dragged_handle.clone(),
|
|
children: Vec::new(),
|
|
};
|
|
for (ix, mut child) in mem::take(&mut self.children).into_iter().enumerate() {
|
|
let child_flex = active_pane_magnification
|
|
.map(|magnification| {
|
|
if self.active_pane_ix == Some(ix) {
|
|
magnification
|
|
} else {
|
|
1.
|
|
}
|
|
})
|
|
.unwrap_or_else(|| flexes[ix]);
|
|
|
|
let child_size = bounds
|
|
.size
|
|
.apply_along(self.axis, |_| space_per_flex * child_flex)
|
|
.map(|d| d.round());
|
|
|
|
let child_bounds = Bounds {
|
|
origin,
|
|
size: child_size,
|
|
};
|
|
bounding_boxes.push(Some(child_bounds));
|
|
child.layout_as_root(child_size.into(), cx);
|
|
child.prepaint_at(origin, cx);
|
|
|
|
origin = origin.apply_along(self.axis, |val| val + child_size.along(self.axis));
|
|
layout.children.push(PaneAxisChildLayout {
|
|
bounds: child_bounds,
|
|
element: child,
|
|
handle: None,
|
|
})
|
|
}
|
|
|
|
for (ix, child_layout) in layout.children.iter_mut().enumerate() {
|
|
if active_pane_magnification.is_none() {
|
|
if ix < len - 1 {
|
|
child_layout.handle =
|
|
Some(Self::layout_handle(self.axis, child_layout.bounds, cx));
|
|
}
|
|
}
|
|
}
|
|
|
|
layout
|
|
}
|
|
|
|
fn paint(
|
|
&mut self,
|
|
_id: Option<&GlobalElementId>,
|
|
bounds: gpui::Bounds<Pixels>,
|
|
_: &mut Self::RequestLayoutState,
|
|
layout: &mut Self::PrepaintState,
|
|
cx: &mut WindowContext,
|
|
) {
|
|
for child in &mut layout.children {
|
|
child.element.paint(cx);
|
|
}
|
|
|
|
for (ix, child) in &mut layout.children.iter_mut().enumerate() {
|
|
if let Some(handle) = child.handle.as_mut() {
|
|
let cursor_style = match self.axis {
|
|
Axis::Vertical => CursorStyle::ResizeRow,
|
|
Axis::Horizontal => CursorStyle::ResizeColumn,
|
|
};
|
|
cx.set_cursor_style(cursor_style, &handle.hitbox);
|
|
// Pane Group border
|
|
cx.paint_quad(gpui::fill(handle.divider_bounds, cx.theme().border));
|
|
|
|
cx.on_mouse_event({
|
|
let dragged_handle = layout.dragged_handle.clone();
|
|
let flexes = self.flexes.clone();
|
|
let workspace = self.workspace.clone();
|
|
let handle_hitbox = handle.hitbox.clone();
|
|
move |e: &MouseDownEvent, phase, cx| {
|
|
if phase.bubble() && handle_hitbox.is_hovered(cx) {
|
|
dragged_handle.replace(Some(ix));
|
|
if e.click_count >= 2 {
|
|
let mut borrow = flexes.lock();
|
|
*borrow = vec![1.; borrow.len()];
|
|
workspace
|
|
.update(cx, |this, cx| this.serialize_workspace(cx))
|
|
.log_err();
|
|
|
|
cx.refresh();
|
|
}
|
|
cx.stop_propagation();
|
|
}
|
|
}
|
|
});
|
|
cx.on_mouse_event({
|
|
let workspace = self.workspace.clone();
|
|
let dragged_handle = layout.dragged_handle.clone();
|
|
let flexes = self.flexes.clone();
|
|
let child_bounds = child.bounds;
|
|
let axis = self.axis;
|
|
move |e: &MouseMoveEvent, phase, cx| {
|
|
let dragged_handle = dragged_handle.borrow();
|
|
if phase.bubble() {
|
|
if *dragged_handle == Some(ix) {
|
|
Self::compute_resize(
|
|
&flexes,
|
|
e,
|
|
ix,
|
|
axis,
|
|
child_bounds.origin,
|
|
bounds.size,
|
|
workspace.clone(),
|
|
cx,
|
|
)
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
cx.on_mouse_event({
|
|
let dragged_handle = layout.dragged_handle.clone();
|
|
move |_: &MouseUpEvent, phase, _cx| {
|
|
if phase.bubble() {
|
|
dragged_handle.replace(None);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
impl ParentElement for PaneAxisElement {
|
|
fn extend(&mut self, elements: impl IntoIterator<Item = AnyElement>) {
|
|
self.children.extend(elements)
|
|
}
|
|
}
|
|
|
|
fn flex_values_in_bounds(flexes: &[f32]) -> bool {
|
|
(flexes.iter().copied().sum::<f32>() - flexes.len() as f32).abs() < 0.001
|
|
}
|
|
}
|