Conrad Irwin
56db21d54b
This should have no user-visible impact. For vim `.` to repeat it's important that actions are replayable. Currently editor::MoveDown *sometimes* moves the cursor down, and *sometimes* selects the next completion. For replay we need to be able to separate the two.
25 lines
740 B
Rust
25 lines
740 B
Rust
use crate::Editor;
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use serde::Deserialize;
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#[derive(Clone, PartialEq, Deserialize)]
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pub enum ScrollAmount {
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// Scroll N lines (positive is towards the end of the document)
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Line(f32),
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// Scroll N pages (positive is towards the end of the document)
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Page(f32),
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}
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impl ScrollAmount {
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pub fn lines(&self, editor: &mut Editor) -> f32 {
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match self {
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Self::Line(count) => *count,
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Self::Page(count) => editor
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.visible_line_count()
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// subtract one to leave an anchor line
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// round towards zero (so page-up and page-down are symmetric)
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.map(|l| (l * count).trunc() - count.signum())
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.unwrap_or(0.),
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}
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}
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}
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