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mtlcl410andClaude Opus 5.5
7e0f635856
A table subform (layout="table") placed in positioned content was drawn through draw_node, which drew each row subform once: the rows the data holds past the first, and an occur initial count, were dropped with no warning, while the same table in flowed content repeated them (XFA 3.3, "Tables", p. 327; "Repeating Elements using Occurrence Limits", p. 263; Chapter 9, p. 336). The positioned table now draws each row once per instance, one under another with its own SOM index, and is measured with them, so what follows it in a top-to-bottom container moves down. The count and the warning for the rows cut come from one helper, laid_out_instances, now used by every layout that repeats a subform (flowed subforms, flowed tables, positioned top-to-bottom, wrapped and table layouts). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0175FWj4xFhMhSH3UpMU8DSC
84 lines
4.0 KiB
Rust
84 lines
4.0 KiB
Rust
//! A dynamic XFA form whose button adds rows past fifty lays every row out and adds the pages
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//! they need (XFA 3.3, "The occur element", p. 786: `max="-1"` sets no upper boundary).
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use std::sync::Arc;
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use pdfcraft_engine::Session;
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/// A list whose `item` row (20pt, 36 to a page) repeats without bound, `data` rows in its
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/// datasets, and a button that adds `add` rows in one click.
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fn form(add: usize, data_rows: usize) -> Vec<u8> {
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let data: String = (1..=data_rows).map(|i| format!("<item><qty>row {i}</qty></item>")).collect();
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let datasets = if data_rows == 0 {
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String::new()
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} else {
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format!(
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r#"<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/"><xfa:data><form><page><list>{data}</list></page></form></xfa:data></xfa:datasets>"#
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)
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};
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let xdp = format!(
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r#"<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
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<template xmlns="http://www.xfa.org/schema/xfa-template/3.3/"><subform name="form" layout="tb">
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<pageSet><pageArea name="p"><occur max="-1"/><contentArea x="36pt" y="36pt" w="540pt" h="720pt"/><medium short="612pt" long="792pt"/></pageArea></pageSet>
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<subform name="page" layout="tb">
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<field name="more" w="100pt" h="20pt"><ui><button/></ui><caption><value><text>Add rows</text></value></caption>
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<event activity="click"><script contentType="application/x-javascript">for (var i = 0; i < {add}; i++) list._item.addInstance(1);</script></event></field>
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<subform name="list" layout="tb">
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<subform name="item" layout="tb"><occur min="1" max="-1"/><field name="qty" w="200pt" h="20pt"><ui><textEdit/></ui></field></subform>
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</subform>
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</subform>
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</subform></template>
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{datasets}
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</xdp:xdp>"#
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);
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pdfcraft_xfa::fixtures::shell(&xdp)
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}
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fn rows(s: &Session, id: pdfcraft_engine::DocId) -> usize {
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s.get(id).map_or(0, |d| d.form.iter().filter(|f| f.name.starts_with("qty")).count())
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}
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#[test]
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fn a_button_adding_rows_past_fifty_lays_them_all_out() {
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let mut s = Session::new();
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let id = s.open("rows.pdf", None, Arc::new(form(59, 0)), None).expect("opens");
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assert_eq!(rows(&s, id), 1);
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assert_eq!(s.get(id).map(|d| d.info.pages.len()), Some(1));
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let o = s.run_javascript(id, "", Some("more")).expect("the click runs");
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assert_eq!(o.error, None);
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// The button row plus 60 rows of 20pt: 61 rows at 36 a page is two pages.
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assert_eq!(rows(&s, id), 60);
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assert_eq!(s.get(id).map(|d| d.info.pages.len()), Some(2));
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let out = s.take_js_output(id);
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assert!(!out.console.iter().any(|l| l.contains("only the first")), "no row is cut: {:?}", out.console);
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}
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/// A table (`layout="table"`) placed at its own position in a positioned subform, its `item` row
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/// repeating with `occur max` `max`, and five rows in its data (XFA 3.3, "Tables", p. 327).
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fn positioned_table(max: &str) -> Vec<u8> {
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let data: String = (1..=5).map(|i| format!("<item><qty>row {i}</qty></item>")).collect();
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let xdp = format!(
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r#"<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
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<template xmlns="http://www.xfa.org/schema/xfa-template/3.3/"><subform name="form" layout="tb">
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<pageSet><pageArea name="p"><contentArea x="36pt" y="36pt" w="540pt" h="720pt"/><medium short="612pt" long="792pt"/></pageArea></pageSet>
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<subform name="page" w="540pt" h="700pt">
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<subform name="table" layout="table" columnWidths="200pt" x="36pt" y="72pt">
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<subform name="item" layout="row"><occur min="1" max="{max}"/><field name="qty" w="200pt" h="20pt"><ui><textEdit/></ui></field></subform>
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</subform>
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</subform>
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</subform></template>
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<xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/"><xfa:data><form><page><table>{data}</table></page></form></xfa:data></xfa:datasets>
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</xdp:xdp>"#
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);
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pdfcraft_xfa::fixtures::shell(&xdp)
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}
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#[test]
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fn a_table_in_a_positioned_subform_gets_a_row_per_data_row_up_to_its_max() {
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let mut s = Session::new();
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for (max, want) in [("-1", 5), ("3", 3)] {
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let id = s.open("table.pdf", None, Arc::new(positioned_table(max)), None).expect("opens");
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assert_eq!(rows(&s, id), want, "occur max {max}");
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}
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}
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