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Add support for Shift and Ctrl input

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Careful: Ctrl-4 and ctrl-\ currently make ncurses crash.
Also some letters combine with Ctrl to make other codes. Run stty -a to
see some mappings.
Basically, you'll have issues with:
C,I,J,M,Q,S,Z
and non-letters.
This commit is contained in:
Alexandre Bury 2015-05-28 14:44:10 -07:00
parent 37e54b3598
commit 3adb95c7ab
4 changed files with 43 additions and 21 deletions
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48
src/event.rs
View File

@ -26,10 +26,10 @@ pub enum Key {
Enter,
/// Tabulation key
Tab,
ArrowLeft,
ArrowRight,
ArrowUp,
ArrowDown,
Left,
Right,
Up,
Down,
PageUp,
PageDown,
Backspace,
@ -57,6 +57,14 @@ pub enum Key {
F13,
F14,
F15,
// Left arrow while shift is pressed
ShiftLeft,
ShiftRight,
CtrlLeft,
CtrlRight,
CtrlUp,
CtrlDown,
CtrlChar(char),
Unknown(i32),
}
@ -67,13 +75,19 @@ impl Key {
// Treat Return and the numpad Enter the same
10 | ncurses::KEY_ENTER => Key::Enter,
27 => Key::Esc,
127 => Key::Backspace,
127 | ncurses::KEY_BACKSPACE => Key::Backspace,
330 => Key::Del,
331 => Key::Ins,
ncurses::KEY_LEFT => Key::ArrowLeft,
ncurses::KEY_RIGHT => Key::ArrowRight,
ncurses::KEY_UP => Key::ArrowUp,
ncurses::KEY_DOWN => Key::ArrowDown,
521 => Key::CtrlDown,
541 => Key::CtrlLeft,
556 => Key::CtrlRight,
562 => Key::CtrlUp,
ncurses::KEY_SLEFT => Key::ShiftLeft,
ncurses::KEY_SRIGHT => Key::ShiftRight,
ncurses::KEY_LEFT => Key::Left,
ncurses::KEY_RIGHT => Key::Right,
ncurses::KEY_UP => Key::Up,
ncurses::KEY_DOWN => Key::Down,
ncurses::KEY_PPAGE => Key::PageUp,
ncurses::KEY_NPAGE => Key::PageDown,
ncurses::KEY_HOME => Key::Home,
@ -93,6 +107,7 @@ impl Key {
ncurses::KEY_F13 => Key::F13,
ncurses::KEY_F14 => Key::F14,
ncurses::KEY_F15 => Key::F15,
c @ 1 ... 7 | c @ 11 ... 25 => Key::CtrlChar(('a' as u8 + (c-1) as u8) as char),
_ => Key::Unknown(ch),
}
}
@ -102,11 +117,18 @@ impl fmt::Display for Key {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Key::Unknown(ch) => write!(f, "Unknown: {}", ch),
Key::CtrlChar(ch) => write!(f, "Ctrl-{}", ch),
key => write!(f, "{}", match key {
Key::ArrowLeft => "Left",
Key::ArrowRight => "Right",
Key::ArrowDown => "Down",
Key::ArrowUp => "Up",
Key::Left => "Left",
Key::Right => "Right",
Key::Down => "Down",
Key::Up => "Up",
Key::ShiftLeft => "Shift-Left",
Key::ShiftRight => "Shift-Right",
Key::CtrlLeft => "Ctrl-Left",
Key::CtrlRight => "Ctrl-Right",
Key::CtrlUp => "Ctrl-Up",
Key::CtrlDown => "Ctrl-Down",
Key::PageUp => "PageUp",
Key::PageDown => "PageDown",
Key::Home => "Home",

8
src/view/dialog.rs
View File

@ -168,7 +168,7 @@ impl View for Dialog {
// If we are on the content, we can only go down.
Focus::Content => match self.content.on_event(event) {
EventResult::Ignored if !self.buttons.is_empty() => match event {
Event::KeyEvent(Key::ArrowDown) => {
Event::KeyEvent(Key::Down) => {
// Default to leftmost button when going down.
self.focus = Focus::Button(0);
EventResult::Consumed(None)
@ -181,7 +181,7 @@ impl View for Dialog {
Focus::Button(i) => match self.buttons[i].on_event(event) {
EventResult::Ignored => match event {
// Up goes back to the content
Event::KeyEvent(Key::ArrowUp) => {
Event::KeyEvent(Key::Up) => {
if self.content.take_focus() {
self.focus = Focus::Content;
EventResult::Consumed(None)
@ -190,11 +190,11 @@ impl View for Dialog {
}
},
// Left and Right move to other buttons
Event::KeyEvent(Key::ArrowRight) if i+1 < self.buttons.len() => {
Event::KeyEvent(Key::Right) if i+1 < self.buttons.len() => {
self.focus = Focus::Button(i+1);
EventResult::Consumed(None)
},
Event::KeyEvent(Key::ArrowRight) if i > 0 => {
Event::KeyEvent(Key::Right) if i > 0 => {
self.focus = Focus::Button(i-1);
EventResult::Consumed(None)
},

4
src/view/edit_view.rs
View File

@ -89,8 +89,8 @@ impl View for EditView {
Event::KeyEvent(key) => match key {
Key::Home => self.cursor = 0,
Key::End => self.cursor = self.content.len(),
Key::ArrowLeft if self.cursor > 0 => self.cursor -= 1,
Key::ArrowRight if self.cursor < self.content.len() => self.cursor += 1,
Key::Left if self.cursor > 0 => self.cursor -= 1,
Key::Right if self.cursor < self.content.len() => self.cursor += 1,
Key::Backspace if self.cursor > 0 => { self.cursor -= 1; self.content.remove(self.cursor); },
Key::Del if self.cursor < self.content.len() => { self.content.remove(self.cursor); },
_ => return EventResult::Ignored,

4
src/view/text_view.rs
View File

@ -198,8 +198,8 @@ impl View for TextView {
}
match event {
Event::KeyEvent(Key::ArrowUp) if self.start_line > 0 => self.start_line -= 1,
Event::KeyEvent(Key::ArrowDown) if self.start_line+self.view_height < self.rows.len() => self.start_line += 1,
Event::KeyEvent(Key::Up) if self.start_line > 0 => self.start_line -= 1,
Event::KeyEvent(Key::Down) if self.start_line+self.view_height < self.rows.len() => self.start_line += 1,
Event::KeyEvent(Key::PageUp) => self.start_line = min(self.start_line+10, self.rows.len()-self.view_height),
Event::KeyEvent(Key::PageDown) => self.start_line -= min(self.start_line, 10),
_ => return EventResult::Ignored,