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Reject invalid index in transition commands instead of using selection

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Found while testing crates/engine/src/cmd/transition.rs:47-54 (slide_indices, via usize_param)

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-30 23:16:32 +00:00
co-authored by Claude Haiku 5.5
parent c4221b1a7c
commit 443f503407
1 changed files with 33 additions and 7 deletions
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crates/engine/src/cmd/transition.rs
+33 -7
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@@ -6,7 +6,7 @@ use deckcraft_model::Transition;
use deckcraft_model::anim::TRANSITIONS;
use serde_json::{Value, json};
use super::{CommandSpec, NO_ID_SPACE, always, bad, bool_param, cmd, has_slide, ok, str_param, usize_param};
use super::{CommandSpec, NO_ID_SPACE, always, bad, bool_param, cmd, has_slide, ok, opt_usize_param, str_param};
use crate::{Result, Session};
pub fn specs() -> Vec<CommandSpec> {
@@ -44,9 +44,9 @@ pub fn specs() -> Vec<CommandSpec> {
]
}
fn slide_indices(s: &Session, p: &Value) -> Result<Vec<usize>> {
fn slide_indices(s: &Session, p: &Value, cmd: &str) -> Result<Vec<usize>> {
let st = s.doc()?;
if let Some(i) = usize_param(p, "index") {
if let Some(i) = opt_usize_param(p, "index", cmd)? {
return Ok(vec![i]);
}
let v: Vec<usize> = st.selection.slides.iter().filter_map(|id| st.doc.slide_index(*id)).collect();
@@ -59,7 +59,7 @@ fn set(s: &mut Session, p: &Value) -> Result<Value> {
TRANSITIONS.iter().find(|t| t.0.eq_ignore_ascii_case(kind)).ok_or_else(|| bad("transition.set", format!("unknown transition `{kind}`")))?;
let option = str_param(p, "option").map(String::from).or_else(|| info.4.first().map(|o| o.to_string())).unwrap_or_default();
let duration = p.get("duration").and_then(Value::as_u64).map(|v| v.min(59_000) as u32);
let list = slide_indices(s, p)?;
let list = slide_indices(s, p, "transition.set")?;
s.edit(|doc, _| {
for i in list {
if let Some(sl) = doc.slides.get_mut(i) {
@@ -83,7 +83,7 @@ fn set(s: &mut Session, p: &Value) -> Result<Value> {
fn options(s: &mut Session, p: &Value) -> Result<Value> {
let option = str_param(p, "option").ok_or_else(|| bad("transition.options", "missing `option`"))?.to_string();
let list = slide_indices(s, p)?;
let list = slide_indices(s, p, "transition.options")?;
s.edit(|doc, _| {
for i in list {
if let Some(sl) = doc.slides.get_mut(i)
@@ -98,7 +98,7 @@ fn options(s: &mut Session, p: &Value) -> Result<Value> {
}
fn timing(s: &mut Session, p: &Value) -> Result<Value> {
let list = slide_indices(s, p)?;
let list = slide_indices(s, p, "transition.timing")?;
s.edit(|doc, _| {
for i in list {
if let Some(sl) = doc.slides.get_mut(i) {
@@ -127,7 +127,7 @@ fn timing(s: &mut Session, p: &Value) -> Result<Value> {
/// Transitions › Sound: embed an audio file as the slides' transition sound, or `none` to remove it.
fn sound(s: &mut Session, p: &Value) -> Result<Value> {
let list = slide_indices(s, p)?;
let list = slide_indices(s, p, "transition.sound")?;
let looping = bool_param(p, "loop");
let edit_all = |s: &mut Session, f: &dyn Fn(&mut Transition)| {
s.edit(|doc, _| {
@@ -215,3 +215,29 @@ fn apply_all(s: &mut Session, _p: &Value) -> Result<Value> {
fn list(_s: &mut Session, _p: &Value) -> Result<Value> {
Ok(Value::Array(TRANSITIONS.iter().map(|t| json!({"id": t.0, "label": t.1, "category": t.2, "duration": t.3, "options": t.4})).collect()))
}
#[cfg(test)]
mod tests {
use serde_json::json;
use crate::Session;
#[test]
fn invalid_index_params_are_rejected_not_defaulted_to_selection() {
let mut s = Session::with_new();
while s.doc().expect("doc").doc.slides.len() < 3 {
s.execute("slide.new", &json!({})).expect("new slide");
}
for bad in [json!(-1), json!(1.5)] {
for (cmd, p) in [
("transition.set", json!({"kind": "fade", "index": bad})),
("transition.options", json!({"option": "x", "index": bad})),
("transition.timing", json!({"duration": 500, "index": bad})),
("transition.sound", json!({"none": true, "index": bad})),
] {
assert!(s.execute(cmd, &p).is_err(), "{cmd} must reject {p}");
assert!(s.doc().expect("doc").doc.slides.iter().all(|sl| sl.transition.is_none()), "{cmd} {p}");
}
}
}
}