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