iced_widget/text_input/
editor.rs

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1use crate::text_input::{Cursor, Value};
2
3pub struct Editor<'a> {
4    value: &'a mut Value,
5    cursor: &'a mut Cursor,
6}
7
8impl<'a> Editor<'a> {
9    pub fn new(value: &'a mut Value, cursor: &'a mut Cursor) -> Editor<'a> {
10        Editor { value, cursor }
11    }
12
13    pub fn contents(&self) -> String {
14        self.value.to_string()
15    }
16
17    pub fn insert(&mut self, character: char) {
18        if let Some((left, right)) = self.cursor.selection(self.value) {
19            self.cursor.move_left(self.value);
20            self.value.remove_many(left, right);
21        }
22
23        self.value.insert(self.cursor.end(self.value), character);
24        self.cursor.move_right(self.value);
25    }
26
27    pub fn paste(&mut self, content: Value) {
28        let length = content.len();
29        if let Some((left, right)) = self.cursor.selection(self.value) {
30            self.cursor.move_left(self.value);
31            self.value.remove_many(left, right);
32        }
33
34        self.value.insert_many(self.cursor.end(self.value), content);
35
36        self.cursor.move_right_by_amount(self.value, length);
37    }
38
39    pub fn backspace(&mut self) {
40        match self.cursor.selection(self.value) {
41            Some((start, end)) => {
42                self.cursor.move_left(self.value);
43                self.value.remove_many(start, end);
44            }
45            None => {
46                let start = self.cursor.start(self.value);
47
48                if start > 0 {
49                    self.cursor.move_left(self.value);
50                    self.value.remove(start - 1);
51                }
52            }
53        }
54    }
55
56    pub fn delete(&mut self) {
57        match self.cursor.selection(self.value) {
58            Some(_) => {
59                self.backspace();
60            }
61            None => {
62                let end = self.cursor.end(self.value);
63
64                if end < self.value.len() {
65                    self.value.remove(end);
66                }
67            }
68        }
69    }
70}
iced_widget/text_input/editor.rs

iced_widget/text_input/
editor.rs
