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@ -16,25 +16,33 @@ impl Default for FormFocus {
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}
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}
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#[derive(Debug, )]
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pub enum Field {
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Text(String, Cursor),
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Text(String, Cursor, Option<(Box<Fn(&Context, &str) -> Vec<String> + Send>, AutoComplete)>),
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Choice(Vec<String>, Cursor),
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TextArea(String, Cursor),
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}
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impl Debug for Field {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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Text(s, c, _) => fmt::Debug::fmt(s, f),
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k => fmt::Debug::fmt(k, f),
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}
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}
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}
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use Field::*;
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impl Default for Field {
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fn default() -> Field {
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Field::Text(String::new(), 0)
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Field::Text(String::new(), 0, None)
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}
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}
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impl Field {
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fn as_str(&self) -> &str {
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match self {
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Text(ref s, _) => {
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Text(ref s, _, _) => {
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s
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},
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TextArea(ref s, _) => {
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@ -52,7 +60,7 @@ impl Field {
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pub fn into_string(self) -> String {
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match self {
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Text(s, _) => {
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Text(s, _, _) => {
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s
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},
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TextArea(s, _) => {
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@ -64,11 +72,17 @@ impl Field {
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}
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}
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fn draw_cursor(&self, grid: &mut CellBuffer, area: Area) {
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fn draw_cursor(&mut self, grid: &mut CellBuffer, area: Area, secondary_area: Area, context: &mut Context) {
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let upper_left = upper_left!(area);
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match self {
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Text(_, cursor) => {
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change_colors(grid, (pos_inc(upper_left, (*cursor, 0)), (pos_inc(upper_left, (*cursor, 0)))), Color::Default, Color::Byte(248));
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Text(ref term, cursor, auto_complete_fn) => {
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change_colors(grid, (pos_inc(upper_left, (*cursor, 0)), (pos_inc(upper_left, (*cursor, 0)))), Color::Default, Color::Byte(248));
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if term.chars().count() <= 2 { return; }
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if let Some((auto_complete_fn, auto_complete)) = auto_complete_fn {
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let entries = auto_complete_fn(context, term);
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auto_complete.set_suggestions(entries);
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auto_complete.draw(grid, secondary_area, context);
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}
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},
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TextArea(_, _) => {
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},
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@ -90,10 +104,37 @@ impl Component for Field {
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true);
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}
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fn process_event(&mut self, event: &mut UIEvent, _context: &mut Context) -> bool {
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if let Text(ref mut s, ref mut cursor, Some((_, auto_complete))) = self {
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match event.event_type {
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UIEventType::InsertInput(Key::Char('\t')) => {
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if let Some(suggestion) = auto_complete.get_suggestion() {
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*s = suggestion;
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*cursor = s.chars().count();
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return true;
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}
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},
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_ => {},
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}
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}
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match event.event_type {
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UIEventType::InsertInput(Key::Up) => {
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if let Text(_, _, Some((_, auto_complete))) = self {
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auto_complete.dec_cursor();
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} else {
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return false;
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}
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},
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UIEventType::InsertInput(Key::Down) => {
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if let Text(_, _, Some((_, auto_complete))) = self {
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auto_complete.inc_cursor();
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} else {
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return false;
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}
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},
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UIEventType::InsertInput(Key::Right) => {
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match self {
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TextArea(ref s, ref mut cursor) | Text(ref s, ref mut cursor) => {
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TextArea(ref s, ref mut cursor) | Text(ref s, ref mut cursor, _) => {
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if *cursor < s.len() {
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*cursor += 1;
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}
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@ -109,7 +150,7 @@ impl Component for Field {
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},
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UIEventType::InsertInput(Key::Left) => {
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match self {
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TextArea(_, ref mut cursor) | Text(_, ref mut cursor) => {
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TextArea(_, ref mut cursor) | Text(_, ref mut cursor, _) => {
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if *cursor == 0 {
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return false;
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} else {
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@ -127,7 +168,7 @@ impl Component for Field {
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},
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UIEventType::InsertInput(Key::Char(k)) => {
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match self {
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Text(ref mut s, ref mut cursor) | TextArea(ref mut s, ref mut cursor) => {
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Text(ref mut s, ref mut cursor, _) | TextArea(ref mut s, ref mut cursor) => {
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s.insert(*cursor, k);
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*cursor += 1;
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},
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@ -136,7 +177,14 @@ impl Component for Field {
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},
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UIEventType::InsertInput(Key::Backspace) => {
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match self {
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Text(ref mut s, ref mut cursor) | TextArea(ref mut s, ref mut cursor) => {
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Text(ref mut s, ref mut cursor, ref mut auto_complete) => {
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if *cursor > 0 {
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*cursor -= 1;
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s.remove(*cursor);
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}
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auto_complete.as_mut().map(|ac| ac.1.set_suggestions(Vec::new()));
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},
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TextArea(ref mut s, ref mut cursor) => {
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if *cursor > 0 {
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*cursor -= 1;
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s.remove(*cursor);
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@ -224,10 +272,15 @@ impl FormWidget {
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self.layout.push(value.0.clone());
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self.fields.insert(value.0, TextArea(value.1, 0));
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}
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pub fn push_cl(&mut self, value: (String, String, Box<Fn(&Context, &str) -> Vec<String> + Send>)) {
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self.field_name_max_length = std::cmp::max(self.field_name_max_length, value.0.len());
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self.layout.push(value.0.clone());
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self.fields.insert(value.0, Text(value.1, 0, Some((value.2, AutoComplete::new(Vec::new())))));
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}
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pub fn push(&mut self, value: (String, String)) {
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self.field_name_max_length = std::cmp::max(self.field_name_max_length, value.0.len());
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self.layout.push(value.0.clone());
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self.fields.insert(value.0, Text(value.1, 0));
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self.fields.insert(value.0, Text(value.1, 0, None));
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}
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pub fn insert(&mut self, index: usize, value: (String, Field)) {
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@ -274,12 +327,14 @@ impl Component for FormWidget {
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/* Highlight if necessary */
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if i == self.cursor {
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if self.focus == FormFocus::Fields {
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change_colors(grid, (pos_inc(upper_left, (0, i)), set_y(bottom_right, i + get_y(upper_left))), Color::Default, Color::Byte(246));
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change_colors(grid, (pos_inc(upper_left, (0, i)), set_y(bottom_right, i + get_y(upper_left))), Color::Default, Color::Byte(246));
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}
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if self.focus == FormFocus::TextInput {
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v.draw_cursor(grid,
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(pos_inc(upper_left, (self.field_name_max_length + 3 , i)),
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(get_x(upper_left) + self.field_name_max_length + 3, i + get_y(upper_left))));
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(get_x(upper_left) + self.field_name_max_length + 3, i + get_y(upper_left))),
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(pos_inc(upper_left, (self.field_name_max_length + 3 , i + 1)), bottom_right),
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context);
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}
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}
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}
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@ -302,9 +357,17 @@ impl Component for FormWidget {
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UIEventType::Input(Key::Up) if self.focus == FormFocus::Buttons => {
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self.focus = FormFocus::Fields;
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},
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UIEventType::InsertInput(Key::Up) if self.focus == FormFocus::TextInput => {
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let field = self.fields.get_mut(&self.layout[self.cursor]).unwrap();
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field.process_event(event, context);
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},
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UIEventType::Input(Key::Up) => {
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self.cursor = self.cursor.saturating_sub(1);
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},
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UIEventType::InsertInput(Key::Down) if self.focus == FormFocus::TextInput => {
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let field = self.fields.get_mut(&self.layout[self.cursor]).unwrap();
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field.process_event(event, context);
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},
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UIEventType::Input(Key::Down) if self.cursor < self.layout.len().saturating_sub(1) => {
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self.cursor += 1;
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},
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@ -315,6 +378,10 @@ impl Component for FormWidget {
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return false;
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}
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},
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UIEventType::InsertInput(Key::Char('\t')) if self.focus == FormFocus::TextInput => {
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let field = self.fields.get_mut(&self.layout[self.cursor]).unwrap();
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field.process_event(event, context);
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},
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UIEventType::Input(Key::Char('\n')) if self.focus == FormFocus::Fields => {
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self.focus = FormFocus::TextInput;
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context.replies.push_back(UIEvent {
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@ -443,3 +510,103 @@ impl<T> Component for ButtonWidget<T> where T: std::fmt::Debug + Default + Send
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}
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#[derive(Debug, PartialEq)]
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pub struct AutoComplete {
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entries: Vec<String>,
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content: CellBuffer,
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cursor: usize,
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dirty: bool,
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}
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impl fmt::Display for AutoComplete {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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Display::fmt("AutoComplete", f)
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}
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}
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impl Component for AutoComplete {
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fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
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if self.entries.is_empty() { return; };
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let upper_left = upper_left!(area);
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self.dirty = false;
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let (width, height) = self.content.size();
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copy_area(
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grid,
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&self.content,
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area,
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((0, 0), (width.saturating_sub(1), height.saturating_sub(1))),
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);
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/* Highlight cursor */
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change_colors(grid, (pos_inc(upper_left, (0, self.cursor)), pos_inc(upper_left, (width.saturating_sub(1), self.cursor))), Color::Default, Color::Byte(246));
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context.dirty_areas.push_back(area);
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}
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fn process_event(&mut self, event: &mut UIEvent, _context: &mut Context) -> bool {
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false
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}
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fn is_dirty(&self) -> bool {
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self.dirty
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}
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fn set_dirty(&mut self) {
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self.dirty = true;
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}
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}
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impl AutoComplete {
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pub fn new(entries: Vec<String>) -> Self {
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let mut ret = AutoComplete {
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entries: Vec::new(),
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content: CellBuffer::default(),
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cursor: 0,
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dirty: true,
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};
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ret.set_suggestions(entries);
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ret
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}
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pub fn set_suggestions(&mut self, entries: Vec<String>) {
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if entries.len() == self.entries.len() && entries == self.entries {
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return;
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}
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let mut content = CellBuffer::new(entries.iter().map(|e| e.len()).max().unwrap_or(0) + 1, entries.len(), Cell::with_style(Color::Byte(23), Color::Byte(7), Attr::Default));
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let width = content.cols();
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for (i, e) in entries.iter().enumerate() {
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let (x, _) = write_string_to_grid(
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e,
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&mut content,
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Color::Byte(23),
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Color::Byte(7),
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((0, i), (width - 1, i)),
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false,
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);
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write_string_to_grid(
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"▒",
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&mut content,
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Color::Byte(23),
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Color::Byte(7),
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((width - 1, i), (width - 1, i)),
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false,
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);
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}
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self.content = content;
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self.entries = entries;
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self.cursor = 0;
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}
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pub fn inc_cursor(&mut self) { if self.cursor < self.entries.len().saturating_sub(1) { self.cursor += 1; self.set_dirty(); } }
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pub fn dec_cursor(&mut self) { self.cursor = self.cursor.saturating_sub(1); self.set_dirty(); }
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pub fn get_suggestion(&mut self) -> Option<String> {
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if self.entries.is_empty() {
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return None;
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}
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let ret = self.entries.remove(self.cursor);
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self.entries.clear();
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self.cursor = 0;
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self.content.empty();
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Some(ret)
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}
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}
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