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Make textinput handle actual key values. Don't restrict character values to a single byte.

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This commit is contained in:
Josh Matthews 2016-06-30 12:41:09 -04:00
parent 04ce86c08c
commit 6496d73210
12 changed files with 123 additions and 72 deletions
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70
components/script/textinput.rs
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@ -6,10 +6,10 @@
use clipboard_provider::ClipboardProvider;
use dom::bindings::str::DOMString;
use dom::keyboardevent::{KeyboardEvent, key_value};
use dom::keyboardevent::KeyboardEvent;
use msg::constellation_msg::{ALT, CONTROL, SHIFT, SUPER};
use msg::constellation_msg::{Key, KeyModifiers};
use std::borrow::{ToOwned, Borrow};
use std::borrow::ToOwned;
use std::cmp::{max, min};
use std::default::Default;
use std::ops::Range;
@ -120,24 +120,6 @@ fn is_control_key(mods: KeyModifiers) -> bool {
mods.contains(CONTROL) && !mods.contains(SUPER | ALT)
}
fn is_printable_key(key: Key) -> bool {
match key {
Key::Space | Key::Apostrophe | Key::Comma | Key::Minus |
Key::Period | Key::Slash | Key::GraveAccent | Key::Num0 |
Key::Num1 | Key::Num2 | Key::Num3 | Key::Num4 | Key::Num5 |
Key::Num6 | Key::Num7 | Key::Num8 | Key::Num9 | Key::Semicolon |
Key::Equal | Key::A | Key::B | Key::C | Key::D | Key::E | Key::F |
Key::G | Key::H | Key::I | Key::J | Key::K | Key::L | Key::M | Key::N |
Key::O | Key::P | Key::Q | Key::R | Key::S | Key::T | Key::U | Key::V |
Key::W | Key::X | Key::Y | Key::Z | Key::LeftBracket | Key::Backslash |
Key::RightBracket | Key::Kp0 | Key::Kp1 | Key::Kp2 | Key::Kp3 |
Key::Kp4 | Key::Kp5 | Key::Kp6 | Key::Kp7 | Key::Kp8 | Key::Kp9 |
Key::KpDecimal | Key::KpDivide | Key::KpMultiply | Key::KpSubtract |
Key::KpAdd | Key::KpEqual => true,
_ => false,
}
}
/// The length in bytes of the first n characters in a UTF-8 string.
///
/// If the string has fewer than n characters, returns the length of the whole string.
@ -486,80 +468,80 @@ impl<T: ClipboardProvider> TextInput<T> {
/// Process a given `KeyboardEvent` and return an action for the caller to execute.
pub fn handle_keydown(&mut self, event: &KeyboardEvent) -> KeyReaction {
if let Some(key) = event.get_key() {
self.handle_keydown_aux(key, event.get_key_modifiers())
self.handle_keydown_aux(event.printable(), key, event.get_key_modifiers())
} else {
KeyReaction::Nothing
}
}
pub fn handle_keydown_aux(&mut self, key: Key, mods: KeyModifiers) -> KeyReaction {
pub fn handle_keydown_aux(&mut self,
printable: Option<char>,
key: Key,
mods: KeyModifiers) -> KeyReaction {
let maybe_select = if mods.contains(SHIFT) { Selection::Selected } else { Selection::NotSelected };
match key {
Key::A if is_control_key(mods) => {
match (printable, key) {
(Some('a'), _) if is_control_key(mods) => {
self.select_all();
KeyReaction::RedrawSelection
},
Key::C if is_control_key(mods) => {
(Some('c'), _) if is_control_key(mods) => {
if let Some(text) = self.get_selection_text() {
self.clipboard_provider.set_clipboard_contents(text);
}
KeyReaction::DispatchInput
},
Key::V if is_control_key(mods) => {
(Some('v'), _) if is_control_key(mods) => {
let contents = self.clipboard_provider.clipboard_contents();
self.insert_string(contents);
KeyReaction::DispatchInput
},
_ if is_printable_key(key) => {
self.insert_string::<&str>(key_value(None, key, mods).borrow());
(Some(c), _) => {
self.insert_char(c);
KeyReaction::DispatchInput
}
Key::Space => {
self.insert_char(' ');
KeyReaction::DispatchInput
}
Key::Delete => {
(None, Key::Delete) => {
self.delete_char(Direction::Forward);
KeyReaction::DispatchInput
}
Key::Backspace => {
(None, Key::Backspace) => {
self.delete_char(Direction::Backward);
KeyReaction::DispatchInput
}
Key::Left => {
(None, Key::Left) => {
self.adjust_horizontal_by_one(Direction::Backward, maybe_select);
KeyReaction::RedrawSelection
}
Key::Right => {
(None, Key::Right) => {
self.adjust_horizontal_by_one(Direction::Forward, maybe_select);
KeyReaction::RedrawSelection
}
Key::Up => {
(None, Key::Up) => {
self.adjust_vertical(-1, maybe_select);
KeyReaction::RedrawSelection
}
Key::Down => {
(None, Key::Down) => {
self.adjust_vertical(1, maybe_select);
KeyReaction::RedrawSelection
}
Key::Enter | Key::KpEnter => self.handle_return(),
Key::Home => {
(None, Key::Enter) | (None, Key::KpEnter) => self.handle_return(),
(None, Key::Home) => {
self.edit_point.index = 0;
KeyReaction::RedrawSelection
}
Key::End => {
(None, Key::End) => {
self.edit_point.index = self.current_line_length();
self.assert_ok_selection();
KeyReaction::RedrawSelection
}
Key::PageUp => {
(None, Key::PageUp) => {
self.adjust_vertical(-28, maybe_select);
KeyReaction::RedrawSelection
}
Key::PageDown => {
(None, Key::PageDown) => {
self.adjust_vertical(28, maybe_select);
KeyReaction::RedrawSelection
}
Key::Tab => KeyReaction::TriggerDefaultAction,
(None, Key::Tab) => KeyReaction::TriggerDefaultAction,
_ => KeyReaction::Nothing,
}
}