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Extended text_area example
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@ -1,12 +1,15 @@
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extern crate cursive;
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use cursive::Cursive;
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use cursive::event::{Event, Key};
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use cursive::traits::*;
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use cursive::views::{Dialog, TextArea};
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use cursive::views::{Dialog, EditView, OnEventView, TextArea};
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fn main() {
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let mut siv = Cursive::new();
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// The main dialog will just have a textarea.
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// Its size expand automatically with the content.
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siv.add_layer(
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Dialog::new()
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.title("Describe your issue")
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@ -15,5 +18,56 @@ fn main() {
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.button("Ok", Cursive::quit),
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);
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// We'll add a find feature!
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siv.add_layer(Dialog::info("Hint: press Ctrl-F to find in text!"));
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siv.add_global_callback(Event::CtrlChar('f'), |s| {
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// When Ctrl-F is pressed, show the Find popup.
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// Pressing the Escape key will discard it.
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s.add_layer(
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OnEventView::new(
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Dialog::new()
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.title("Find")
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.content(
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EditView::new()
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.on_submit(find)
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.with_id("edit")
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.min_width(10),
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)
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.button("Ok", |s| {
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let text = s.call_on_id(
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"edit",
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|view: &mut EditView| view.get_content(),
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).unwrap();
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find(s, &text);
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})
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.button("Cancel", |s| s.pop_layer()),
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).on_event(Event::Key(Key::Esc), |s| s.pop_layer()),
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)
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});
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siv.run();
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}
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fn find(siv: &mut Cursive, text: &str) {
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// First, remove the find popup
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siv.pop_layer();
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let res = siv.call_on_id("text", |v: &mut TextArea| {
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// Find the given text from the text area content
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// Possible improvement: search after the current cursor.
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if let Some(i) = v.get_content().find(text) {
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// If we found it, move the cursor
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v.set_cursor(i);
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Ok(())
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} else {
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// Otherwise, return an error so we can show a warning.
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Err(())
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}
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});
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if let Some(Err(())) = res {
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// If we didn't find anything, tell the user!
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siv.add_layer(Dialog::info(format!("`{}` not found", text)));
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}
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}
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