mirror of
https://github.com/storytold/deckcraft.git
synced 2026-10-26 03:27:03 -06:00
Brandon ThomasandClaude Opus 5.5
67e1ab6373
Conflicts resolved onto main's newer shape, and the PR's policy applied to every alloc_id/add_media/new_slide call site main has grown since: commands answer bad(cmd, NO_ID_SPACE) (slide.reuse, insert.zoom, SmartArt, photo album, review.accept, handout/notes masters, master placeholders, background/artistic/compress pictures, transition sound, ink to shape, paste special, file.new templates); reid/bring_media/renumber/regenerate and compare::adopt/accept are fallible; outline import keeps what fit. Tests use expect() on the now-Option results. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
456 lines
19 KiB
Rust
456 lines
19 KiB
Rust
//! Review › Compare: the differences between the open presentation and a revised copy of it, slide
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//! by slide, and accepting a revised slide into the open one.
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//!
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//! Slides match by id (a revised copy of the same deck keeps them); when the two decks share no
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//! slide id at all, by position. Shapes match by id, then by name.
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use std::collections::{HashMap, HashSet};
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use std::sync::Arc;
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use deckcraft_model::{Fill, MediaId, Presentation, Shape, ShapeId, ShapeKind, Slide, SlideId};
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use serde::Serialize;
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/// The revised presentation a document is being compared with.
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#[derive(Clone, Debug)]
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pub struct Compare {
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pub name: String,
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pub revised: Arc<Presentation>,
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/// Slides match by position (the decks shared no slide id when the compare started); fixed
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/// for the session so accepting slides doesn't switch the matching half way.
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pub by_position: bool,
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}
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/// Whether `cur` and `rev` share no slide id (then slides match by position).
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pub fn unrelated(cur: &Presentation, rev: &Presentation) -> bool {
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let ids: HashSet<SlideId> = rev.slides.iter().map(|s| s.id).collect();
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!cur.slides.iter().any(|s| ids.contains(&s.id))
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}
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#[derive(Clone, Copy, Debug, PartialEq, Eq, Serialize)]
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#[serde(rename_all = "camelCase")]
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pub enum ChangeKind {
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/// Only in the revised deck.
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Inserted,
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/// Only in the open deck.
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Deleted,
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/// In both, different.
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Changed,
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}
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/// One slide-level revision.
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#[derive(Clone, Debug, PartialEq, Serialize)]
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#[serde(rename_all = "camelCase")]
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pub struct Change {
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pub kind: ChangeKind,
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/// Index in the open deck (for inserted: where it would go).
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pub slide: usize,
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/// Index in the revised deck (none for deleted).
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pub revised: Option<usize>,
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/// What differs, readable: `Title 1: text`, `Picture 3 inserted`, `notes`…
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pub details: Vec<String>,
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}
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const MAX_DETAILS: usize = 50;
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/// Slide pairs (open index, revised index).
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fn pairs(cur: &Presentation, rev: &Presentation, by_position: bool) -> Vec<(usize, usize)> {
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if by_position {
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return (0..cur.slides.len().min(rev.slides.len())).map(|i| (i, i)).collect();
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}
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let rev_ids: HashMap<SlideId, usize> = rev.slides.iter().enumerate().map(|(i, s)| (s.id, i)).collect();
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cur.slides.iter().enumerate().filter_map(|(i, s)| rev_ids.get(&s.id).map(|j| (i, *j))).collect()
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}
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pub fn diff(cur: &Presentation, rev: &Presentation, by_position: bool) -> Vec<Change> {
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let pairs = pairs(cur, rev, by_position);
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let cur_matched: HashSet<usize> = pairs.iter().map(|p| p.0).collect();
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let rev_matched: HashSet<usize> = pairs.iter().map(|p| p.1).collect();
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let mut out = vec![];
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for (i, j) in &pairs {
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let (Some(a), Some(b)) = (cur.slides.get(*i), rev.slides.get(*j)) else { continue };
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let details = slide_details(cur, a, rev, b);
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if !details.is_empty() {
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out.push(Change { kind: ChangeKind::Changed, slide: *i, revised: Some(*j), details });
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}
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}
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for (i, s) in cur.slides.iter().enumerate() {
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if !cur_matched.contains(&i) {
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out.push(Change { kind: ChangeKind::Deleted, slide: i, revised: None, details: vec![slide_title(s)] });
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}
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}
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for (j, s) in rev.slides.iter().enumerate() {
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if !rev_matched.contains(&j) {
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// After the open slide that matches the revised slide before it.
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let at = (0..j).rev().find_map(|k| pairs.iter().find(|p| p.1 == k).map(|p| p.0 + 1)).unwrap_or(0);
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out.push(Change { kind: ChangeKind::Inserted, slide: at, revised: Some(j), details: vec![slide_title(s)] });
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}
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}
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out.sort_by_key(|c| (c.slide, c.revised.unwrap_or(0)));
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out
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}
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fn slide_title(s: &Slide) -> String {
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let t = s
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.shapes
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.iter()
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.find(|x| x.ph.as_ref().is_some_and(|p| matches!(p.kind, deckcraft_model::PhType::Title | deckcraft_model::PhType::CtrTitle)))
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.and_then(|x| x.text.as_ref())
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.map(|b| b.text())
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.unwrap_or_default();
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let t = t.trim();
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if t.is_empty() { "Untitled slide".into() } else { t.chars().take(60).collect() }
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}
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fn shape_label(s: &Shape) -> String {
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if s.name.trim().is_empty() { format!("Shape {}", s.id.0) } else { s.name.clone() }
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}
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fn media_bytes(p: &Presentation, id: MediaId) -> Option<&[u8]> {
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p.media(id).map(|m| m.data.as_slice())
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}
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/// A shape without its ids (shape and media), for comparing across decks.
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fn plain_shape(s: &Shape) -> Shape {
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let mut c = s.clone();
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fn rec(shapes: &mut [Shape]) {
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for s in shapes {
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s.id = ShapeId(0);
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if let Some(ch) = s.children_mut() {
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rec(ch);
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}
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}
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}
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rec(std::slice::from_mut(&mut c));
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c
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}
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fn shape_details(cp: &Presentation, a: &Shape, rp: &Presentation, b: &Shape, out: &mut Vec<String>) {
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let label = shape_label(b);
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let text = |s: &Shape| s.text.as_ref().map(|t| t.text()).unwrap_or_default();
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let mut what = vec![];
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if text(a) != text(b) {
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what.push("text");
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} else if a.text != b.text {
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what.push("text formatting");
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}
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match (&a.xfrm, &b.xfrm) {
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(Some(x), Some(y)) if (x.x, x.y) != (y.x, y.y) && (x.w, x.h) == (y.w, y.h) => what.push("moved"),
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(Some(x), Some(y)) if (x.w, x.h) != (y.w, y.h) => what.push("resized"),
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(x, y) if x.as_ref().map(|x| x.rot) != y.as_ref().map(|y| y.rot) => what.push("rotated"),
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_ => {}
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}
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if a.fill != b.fill || a.line != b.line || a.style != b.style || a.effects != b.effects {
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what.push("formatting");
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}
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let pic = |p: &Presentation, s: &Shape| match &s.kind {
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ShapeKind::Picture { fill } => media_bytes(p, fill.media).map(|b| b.to_vec()),
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_ => None,
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};
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if pic(cp, a) != pic(rp, b) {
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what.push("picture");
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}
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if what.is_empty() {
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let (mut x, mut y) = (plain_shape(a), plain_shape(b));
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x.text = None;
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y.text = None;
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if let (ShapeKind::Picture { .. }, ShapeKind::Picture { .. }) = (&x.kind, &y.kind) {
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x.kind = ShapeKind::Shape;
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y.kind = ShapeKind::Shape;
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}
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if x != y {
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what.push("properties");
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}
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}
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if !what.is_empty() {
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out.push(format!("{label}: {}", what.join(", ")));
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}
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}
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fn slide_details(cp: &Presentation, a: &Slide, rp: &Presentation, b: &Slide) -> Vec<String> {
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let mut out = vec![];
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let mut used: HashSet<usize> = HashSet::new();
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for sa in &a.shapes {
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let k = b
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.shapes
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.iter()
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.position(|x| x.id == sa.id)
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.or_else(|| b.shapes.iter().enumerate().position(|(k, x)| !used.contains(&k) && x.name == sa.name && !x.name.is_empty()));
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match k {
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Some(k) if !used.contains(&k) => {
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used.insert(k);
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if let Some(sb) = b.shapes.get(k) {
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shape_details(cp, sa, rp, sb, &mut out);
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}
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}
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_ => out.push(format!("{} deleted", shape_label(sa))),
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}
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}
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for (k, sb) in b.shapes.iter().enumerate() {
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if !used.contains(&k) {
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out.push(format!("{} inserted", shape_label(sb)));
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}
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}
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let order = |s: &Slide| s.shapes.iter().map(|x| x.name.clone()).collect::<Vec<_>>();
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if out.is_empty() && order(a) != order(b) {
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out.push("order of objects".into());
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}
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let layout_name = |p: &Presentation, s: &Slide| p.layout(s.layout).map(|(_, l)| l.name.clone());
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if layout_name(cp, a) != layout_name(rp, b) {
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out.push("layout".into());
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}
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if a.notes.text() != b.notes.text() {
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out.push("notes".into());
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}
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if a.transition != b.transition {
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out.push("transition".into());
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}
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if a.animations.len() != b.animations.len()
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|| a.animations
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.iter()
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.zip(&b.animations)
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.any(|(x, y)| (&x.effect, x.class, x.start, x.duration_ms, x.delay_ms) != (&y.effect, y.class, y.start, y.duration_ms, y.delay_ms))
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{
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out.push("animations".into());
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}
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if a.background != b.background {
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out.push("background".into());
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}
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if a.hidden != b.hidden {
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out.push(if b.hidden { "hidden" } else { "shown" }.into());
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}
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out.truncate(MAX_DETAILS);
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out
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}
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fn max_shape_id(shapes: &[Shape], m: &mut u32) {
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deckcraft_model::walk(shapes, &mut |s, _| *m = (*m).max(s.id.0));
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}
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/// The revised slide made to live in `doc`: its media copied over (remapped on an id clash), shape
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/// ids kept unless another slide of `doc` uses them (then fresh, animations following), and its
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/// layout matched by id, then by name, then the first layout. An error when `doc` has used every
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/// object id and cannot take the slide without duplicating ids (#407).
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pub fn adopt(doc: &mut Presentation, rev: &Presentation, slide: &Slide, replacing: Option<SlideId>) -> crate::Result<Slide> {
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let mut sl = slide.clone();
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// Media.
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let mut mids = vec![];
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crate::cmd::edit::media_of_shapes(&sl.shapes, &mut mids);
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let mut media_map: HashMap<MediaId, MediaId> = HashMap::new();
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for id in mids {
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let Some(m) = rev.media(id) else { continue };
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match doc.media(id) {
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Some(x) if x.data == m.data => {}
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None => doc.media.push(m.clone()),
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Some(_) => {
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let new = doc
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.add_media(&m.name, &m.content_type, m.data.as_ref().clone())
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.ok_or_else(|| crate::cmd::bad("review.accept", crate::cmd::NO_ID_SPACE))?;
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media_map.insert(id, new);
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}
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}
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}
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// Shape ids used elsewhere in the open deck.
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let mut taken: HashSet<u32> = HashSet::new();
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for s in doc.slides.iter().filter(|s| Some(s.id) != replacing) {
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deckcraft_model::walk(&s.shapes, &mut |x, _| {
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taken.insert(x.id.0);
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});
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}
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let mut id_map: HashMap<ShapeId, ShapeId> = HashMap::new();
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fn rec(
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doc: &mut Presentation,
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shapes: &mut [Shape],
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taken: &HashSet<u32>,
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ids: &mut HashMap<ShapeId, ShapeId>,
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media: &HashMap<MediaId, MediaId>,
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depth: usize,
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) -> crate::Result<()> {
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if depth > 64 {
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return Ok(());
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}
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for s in shapes {
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if taken.contains(&s.id.0) {
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let new = ShapeId(doc.alloc_id().ok_or_else(|| crate::cmd::bad("review.accept", crate::cmd::NO_ID_SPACE))?);
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ids.insert(s.id, new);
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s.id = new;
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}
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let remap = |m: &mut MediaId| {
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if let Some(n) = media.get(m) {
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*m = *n;
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}
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};
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match &mut s.kind {
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ShapeKind::Picture { fill } => remap(&mut fill.media),
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ShapeKind::Media(m) => {
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remap(&mut m.media);
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if let Some(p) = m.poster.as_mut() {
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remap(p);
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}
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}
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_ => {}
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}
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if let Some(Fill::Picture(pf)) = &mut s.fill {
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remap(&mut pf.media);
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}
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if let Some(ch) = s.children_mut() {
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rec(doc, ch, taken, ids, media, depth + 1)?;
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}
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}
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Ok(())
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}
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rec(doc, &mut sl.shapes, &taken, &mut id_map, &media_map, 0)?;
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for a in &mut sl.animations {
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if let Some(n) = id_map.get(&a.shape) {
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a.shape = *n;
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}
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if let Some(t) = a.trigger.as_mut()
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&& let Some(n) = id_map.get(t)
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{
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*t = *n;
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}
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}
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let mut max = 0;
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max_shape_id(&sl.shapes, &mut max);
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doc.next_id = doc.next_id.max(max);
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// Layout.
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if doc.layout(sl.layout).is_none() {
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let name = rev.layout(slide.layout).map(|(_, l)| l.name.clone());
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let by_name = name.and_then(|n| doc.masters.iter().flat_map(|m| &m.layouts).find(|l| l.name == n).map(|l| l.id));
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sl.layout = by_name.or_else(|| doc.masters.first().and_then(|m| m.layouts.first()).map(|l| l.id)).unwrap_or_default();
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}
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match replacing {
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Some(id) => sl.id = id,
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None => {
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if doc.slides.iter().any(|s| s.id == sl.id) || sl.id.0 == 0 {
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sl.id = SlideId(doc.alloc_id().ok_or_else(|| crate::cmd::bad("review.accept", crate::cmd::NO_ID_SPACE))?);
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}
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doc.next_id = doc.next_id.max(sl.id.0);
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}
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}
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Ok(sl)
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}
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/// Apply `change` (from [`diff`] of `doc` against `rev`) to `doc`. Returns the slide index to show
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/// (`None` when the change no longer applies), or an error when `doc` has used every object id.
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pub fn accept(doc: &mut Presentation, rev: &Presentation, change: &Change) -> crate::Result<Option<usize>> {
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match change.kind {
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ChangeKind::Changed => {
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let Some(b) = change.revised.and_then(|r| rev.slides.get(r)).cloned() else { return Ok(None) };
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let Some(id) = doc.slides.get(change.slide).map(|s| s.id) else { return Ok(None) };
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let sl = adopt(doc, rev, &b, Some(id))?;
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let Some(slot) = doc.slides.get_mut(change.slide) else { return Ok(None) };
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*slot = Arc::new(sl);
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Ok(Some(change.slide))
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}
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ChangeKind::Inserted => {
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let Some(b) = change.revised.and_then(|r| rev.slides.get(r)).cloned() else { return Ok(None) };
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let sl = adopt(doc, rev, &b, None)?;
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let at = change.slide.min(doc.slides.len());
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doc.slides.insert(at, Arc::new(sl));
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Ok(Some(at))
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}
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ChangeKind::Deleted => {
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if change.slide >= doc.slides.len() || doc.slides.len() <= 1 {
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return Ok(None);
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}
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doc.slides.remove(change.slide);
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Ok(Some(change.slide.min(doc.slides.len().saturating_sub(1))))
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use serde_json::{Value, json};
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use crate::Session;
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/// The sample deck, and a revised copy of it as base64 `.deckcraft` bytes: slide 1's title
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/// retyped, slide 2 deleted, a new slide at the end, a shape moved on slide 3.
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fn decks() -> (Session, String, usize) {
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let mut s = Session::new();
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crate::sample::open_sample(&mut s).unwrap();
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let n = s.doc().unwrap().doc.slides.len();
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let orig = s.execute("file.saveBytes", &json!({})).unwrap()["data"].as_str().unwrap().to_string();
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// Make the revision in a second document.
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s.execute("file.openBytes", &json!({"name": "rev.deckcraft", "data": orig})).unwrap();
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let first = s.doc().unwrap().doc.slides[0].shapes.iter().find(|x| x.text.is_some()).unwrap().id.0;
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s.execute("edit.select", &json!({"ids": [first]})).unwrap();
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s.execute("text.edit", &json!({"id": first})).unwrap();
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s.execute("edit.selectAll", &json!({})).unwrap();
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s.execute("text.insert", &json!({"text": "Revised title"})).unwrap();
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s.execute("text.exit", &json!({})).unwrap();
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s.execute("slide.delete", &json!({"index": 1})).unwrap();
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s.execute("slide.go", &json!({"index": 1})).ok();
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let moved = s.doc().unwrap().doc.slides[1].shapes[0].id.0;
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s.execute("shape.move", &json!({"ids": [moved], "dx": 30, "dy": 0})).ok();
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s.execute("slide.go", &json!({"index": n - 2})).ok();
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s.execute("slide.new", &json!({"layout": "titleAndContent", "title": "Brand new", "body": "x"})).unwrap();
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let rev = s.execute("file.saveBytes", &json!({})).unwrap()["data"].as_str().unwrap().to_string();
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s.close_document(1);
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s.set_active(0);
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(s, rev, n)
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}
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fn kinds(v: &Value) -> Vec<String> {
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v["changes"].as_array().unwrap().iter().map(|c| c["kind"].as_str().unwrap().to_string()).collect()
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}
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#[test]
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fn lists_inserted_deleted_and_changed_slides() {
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let (mut s, rev, n) = decks();
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let v = s.execute("review.compare", &json!({"name": "rev.deckcraft", "data": rev})).unwrap();
|
||
let k = kinds(&v);
|
||
assert!(k.contains(&"deleted".into()) && k.contains(&"inserted".into()) && k.contains(&"changed".into()), "{v}");
|
||
let ch = &v["changes"].as_array().unwrap()[0];
|
||
assert_eq!(ch["slide"], 0);
|
||
assert!(ch["details"].to_string().contains("text"), "{ch}");
|
||
let ins = v["changes"].as_array().unwrap().iter().find(|c| c["kind"] == "inserted").unwrap();
|
||
assert_eq!(ins["details"][0], "Brand new");
|
||
let at = ins["slide"].as_u64().unwrap() as usize;
|
||
assert_eq!(at, n, "after the open slide matching the revised one before it");
|
||
assert_eq!(s.doc().unwrap().doc.slides.len(), n, "comparing alone changes nothing");
|
||
}
|
||
|
||
#[test]
|
||
fn accept_one_then_all_makes_the_decks_equal_and_undoes() {
|
||
let (mut s, rev, n) = decks();
|
||
s.execute("review.compare", &json!({"name": "rev.deckcraft", "data": rev})).unwrap();
|
||
let before = s.execute("review.revisions", &json!({})).unwrap()["changes"].as_array().unwrap().len();
|
||
s.execute("review.accept", &json!({"index": 0})).unwrap();
|
||
let after = s.execute("review.revisions", &json!({})).unwrap()["changes"].as_array().unwrap().len();
|
||
assert_eq!(after, before - 1);
|
||
assert!(s.doc().unwrap().doc.slides[0].shapes.iter().any(|x| x.text.as_ref().is_some_and(|t| t.text().contains("Revised title"))));
|
||
s.execute("review.accept", &json!({"all": true})).unwrap();
|
||
let left = s.execute("review.revisions", &json!({})).unwrap();
|
||
assert!(left["changes"].as_array().unwrap().is_empty(), "{left}");
|
||
assert!(s.doc().unwrap().doc.validate().is_empty(), "{:?}", s.doc().unwrap().doc.validate());
|
||
assert_eq!(s.doc().unwrap().doc.slides.len(), n);
|
||
s.execute("edit.undo", &json!({})).unwrap();
|
||
s.execute("edit.undo", &json!({})).unwrap();
|
||
assert_eq!(s.execute("review.revisions", &json!({})).unwrap()["changes"].as_array().unwrap().len(), before);
|
||
s.execute("review.endCompare", &json!({})).unwrap();
|
||
assert!(s.execute("review.revisions", &json!({})).is_err());
|
||
assert!(s.execute("review.accept", &json!({"all": true})).is_err());
|
||
}
|
||
|
||
#[test]
|
||
fn unrelated_decks_match_by_position_and_bad_input_fails() {
|
||
let mut s = Session::with_new();
|
||
s.execute("slide.new", &json!({"layout": "title", "title": "A"})).unwrap();
|
||
let mut other = Session::with_new();
|
||
other.execute("slide.new", &json!({"layout": "title", "title": "B"})).unwrap();
|
||
other.execute("slide.new", &json!({"layout": "title", "title": "C"})).unwrap();
|
||
let data = other.execute("file.saveBytes", &json!({"format": "pptx"})).unwrap()["data"].as_str().unwrap().to_string();
|
||
let v = s.execute("review.compare", &json!({"name": "o.pptx", "data": data})).unwrap();
|
||
assert!(kinds(&v).contains(&"inserted".into()), "{v}");
|
||
s.execute("review.accept", &json!({"all": true})).unwrap();
|
||
assert!(s.execute("review.revisions", &json!({})).unwrap()["changes"].as_array().unwrap().is_empty());
|
||
assert!(s.doc().unwrap().doc.validate().is_empty());
|
||
assert!(s.execute("review.compare", &json!({"data": "!!"})).is_err());
|
||
assert!(s.execute("review.compare", &json!({"name": "x.bin", "data": "AAAA"})).is_err());
|
||
assert!(s.execute("review.compare", &json!({})).is_err());
|
||
assert!(s.execute("review.accept", &json!({"index": 999})).is_err());
|
||
}
|
||
}
|