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fune/servo/components/script/dom/keyboardevent.rs
Manish Goregaokar 49dd259bff servo: Merge #10122 - Support navigation keys (from Manishearth:nav-keys); r=asajeffrey 
Rather useful.

If most people have these keys on their keyboard, I'd prefer to remove the backspace navigation handler. I've never used it on purpose, but it gets hit often by accident when an input widget isn't focused (either due to a misclick or debug build lag).

Source-Repo: https://github.com/servo/servo
Source-Revision: 771623054f467008ce6cb9bd2396517ca8e0a126
2016-03-24 02:06:49 +05:01

855 lines
29 KiB
Rust
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::KeyboardEventBinding;
use dom::bindings::codegen::Bindings::KeyboardEventBinding::{KeyboardEventConstants, KeyboardEventMethods};
use dom::bindings::codegen::Bindings::UIEventBinding::UIEventMethods;
use dom::bindings::error::Fallible;
use dom::bindings::global::GlobalRef;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::{Root, RootedReference};
use dom::bindings::reflector::{Reflectable, reflect_dom_object};
use dom::event::Event;
use dom::uievent::UIEvent;
use dom::window::Window;
use msg::constellation_msg;
use msg::constellation_msg::{Key, KeyModifiers};
use std::cell::Cell;
use util::str::DOMString;
no_jsmanaged_fields!(Key);
#[dom_struct]
pub struct KeyboardEvent {
uievent: UIEvent,
key: Cell<Option<Key>>,
key_string: DOMRefCell<DOMString>,
code: DOMRefCell<DOMString>,
location: Cell<u32>,
ctrl: Cell<bool>,
alt: Cell<bool>,
shift: Cell<bool>,
meta: Cell<bool>,
repeat: Cell<bool>,
is_composing: Cell<bool>,
char_code: Cell<Option<u32>>,
key_code: Cell<u32>,
}
impl KeyboardEvent {
fn new_inherited() -> KeyboardEvent {
KeyboardEvent {
uievent: UIEvent::new_inherited(),
key: Cell::new(None),
key_string: DOMRefCell::new(DOMString::new()),
code: DOMRefCell::new(DOMString::new()),
location: Cell::new(0),
ctrl: Cell::new(false),
alt: Cell::new(false),
shift: Cell::new(false),
meta: Cell::new(false),
repeat: Cell::new(false),
is_composing: Cell::new(false),
char_code: Cell::new(None),
key_code: Cell::new(0),
}
}
pub fn new_uninitialized(window: &Window) -> Root<KeyboardEvent> {
reflect_dom_object(box KeyboardEvent::new_inherited(),
GlobalRef::Window(window),
KeyboardEventBinding::Wrap)
}
pub fn new(window: &Window,
type_: DOMString,
canBubble: bool,
cancelable: bool,
view: Option<&Window>,
_detail: i32,
key: Option<Key>,
key_string: DOMString,
code: DOMString,
location: u32,
repeat: bool,
isComposing: bool,
ctrlKey: bool,
altKey: bool,
shiftKey: bool,
metaKey: bool,
char_code: Option<u32>,
key_code: u32) -> Root<KeyboardEvent> {
let ev = KeyboardEvent::new_uninitialized(window);
ev.InitKeyboardEvent(type_, canBubble, cancelable, view, key_string, location,
DOMString::new(), repeat, DOMString::new());
ev.key.set(key);
*ev.code.borrow_mut() = code;
ev.ctrl.set(ctrlKey);
ev.alt.set(altKey);
ev.shift.set(shiftKey);
ev.meta.set(metaKey);
ev.char_code.set(char_code);
ev.key_code.set(key_code);
ev.is_composing.set(isComposing);
ev
}
pub fn Constructor(global: GlobalRef,
type_: DOMString,
init: &KeyboardEventBinding::KeyboardEventInit) -> Fallible<Root<KeyboardEvent>> {
let event = KeyboardEvent::new(global.as_window(), type_,
init.parent.parent.parent.bubbles,
init.parent.parent.parent.cancelable,
init.parent.parent.view.r(),
init.parent.parent.detail, key_from_string(&init.key, init.location),
init.key.clone(), init.code.clone(), init.location,
init.repeat, init.isComposing, init.parent.ctrlKey,
init.parent.altKey, init.parent.shiftKey, init.parent.metaKey,
None, 0);
Ok(event)
}
pub fn key_properties(key: Key, mods: KeyModifiers)
-> KeyEventProperties {
KeyEventProperties {
key_string: key_value(key, mods),
code: code_value(key),
location: key_location(key),
char_code: key_charcode(key, mods),
key_code: key_keycode(key),
}
}
}
impl KeyboardEvent {
pub fn get_key(&self) -> Option<Key> {
self.key.get().clone()
}
pub fn get_key_modifiers(&self) -> KeyModifiers {
let mut result = KeyModifiers::empty();
if self.shift.get() {
result = result | constellation_msg::SHIFT;
}
if self.ctrl.get() {
result = result | constellation_msg::CONTROL;
}
if self.alt.get() {
result = result | constellation_msg::ALT;
}
if self.meta.get() {
result = result | constellation_msg::SUPER;
}
result
}
}
// https://w3c.github.io/uievents-key/#key-value-tables
pub fn key_value(key: Key, mods: KeyModifiers) -> &'static str {
let shift = mods.contains(constellation_msg::SHIFT);
match key {
Key::Space => " ",
Key::Apostrophe if shift => "\"",
Key::Apostrophe => "'",
Key::Comma if shift => "<",
Key::Comma => ",",
Key::Minus if shift => "_",
Key::Minus => "-",
Key::Period if shift => ">",
Key::Period => ".",
Key::Slash if shift => "?",
Key::Slash => "/",
Key::GraveAccent if shift => "~",
Key::GraveAccent => "`",
Key::Num0 if shift => ")",
Key::Num0 => "0",
Key::Num1 if shift => "!",
Key::Num1 => "1",
Key::Num2 if shift => "@",
Key::Num2 => "2",
Key::Num3 if shift => "#",
Key::Num3 => "3",
Key::Num4 if shift => "$",
Key::Num4 => "4",
Key::Num5 if shift => "%",
Key::Num5 => "5",
Key::Num6 if shift => "^",
Key::Num6 => "6",
Key::Num7 if shift => "&",
Key::Num7 => "7",
Key::Num8 if shift => "*",
Key::Num8 => "8",
Key::Num9 if shift => "(",
Key::Num9 => "9",
Key::Semicolon if shift => ":",
Key::Semicolon => ";",
Key::Equal if shift => "+",
Key::Equal => "=",
Key::A if shift => "A",
Key::A => "a",
Key::B if shift => "B",
Key::B => "b",
Key::C if shift => "C",
Key::C => "c",
Key::D if shift => "D",
Key::D => "d",
Key::E if shift => "E",
Key::E => "e",
Key::F if shift => "F",
Key::F => "f",
Key::G if shift => "G",
Key::G => "g",
Key::H if shift => "H",
Key::H => "h",
Key::I if shift => "I",
Key::I => "i",
Key::J if shift => "J",
Key::J => "j",
Key::K if shift => "K",
Key::K => "k",
Key::L if shift => "L",
Key::L => "l",
Key::M if shift => "M",
Key::M => "m",
Key::N if shift => "N",
Key::N => "n",
Key::O if shift => "O",
Key::O => "o",
Key::P if shift => "P",
Key::P => "p",
Key::Q if shift => "Q",
Key::Q => "q",
Key::R if shift => "R",
Key::R => "r",
Key::S if shift => "S",
Key::S => "s",
Key::T if shift => "T",
Key::T => "t",
Key::U if shift => "U",
Key::U => "u",
Key::V if shift => "V",
Key::V => "v",
Key::W if shift => "W",
Key::W => "w",
Key::X if shift => "X",
Key::X => "x",
Key::Y if shift => "Y",
Key::Y => "y",
Key::Z if shift => "Z",
Key::Z => "z",
Key::LeftBracket if shift => "{",
Key::LeftBracket => "[",
Key::Backslash if shift => "|",
Key::Backslash => "\\",
Key::RightBracket if shift => "}",
Key::RightBracket => "]",
Key::World1 => "Unidentified",
Key::World2 => "Unidentified",
Key::Escape => "Escape",
Key::Enter => "Enter",
Key::Tab => "Tab",
Key::Backspace => "Backspace",
Key::Insert => "Insert",
Key::Delete => "Delete",
Key::Right => "ArrowRight",
Key::Left => "ArrowLeft",
Key::Down => "ArrowDown",
Key::Up => "ArrowUp",
Key::PageUp => "PageUp",
Key::PageDown => "PageDown",
Key::Home => "Home",
Key::End => "End",
Key::CapsLock => "CapsLock",
Key::ScrollLock => "ScrollLock",
Key::NumLock => "NumLock",
Key::PrintScreen => "PrintScreen",
Key::Pause => "Pause",
Key::F1 => "F1",
Key::F2 => "F2",
Key::F3 => "F3",
Key::F4 => "F4",
Key::F5 => "F5",
Key::F6 => "F6",
Key::F7 => "F7",
Key::F8 => "F8",
Key::F9 => "F9",
Key::F10 => "F10",
Key::F11 => "F11",
Key::F12 => "F12",
Key::F13 => "F13",
Key::F14 => "F14",
Key::F15 => "F15",
Key::F16 => "F16",
Key::F17 => "F17",
Key::F18 => "F18",
Key::F19 => "F19",
Key::F20 => "F20",
Key::F21 => "F21",
Key::F22 => "F22",
Key::F23 => "F23",
Key::F24 => "F24",
Key::F25 => "F25",
Key::Kp0 => "0",
Key::Kp1 => "1",
Key::Kp2 => "2",
Key::Kp3 => "3",
Key::Kp4 => "4",
Key::Kp5 => "5",
Key::Kp6 => "6",
Key::Kp7 => "7",
Key::Kp8 => "8",
Key::Kp9 => "9",
Key::KpDecimal => ".",
Key::KpDivide => "/",
Key::KpMultiply => "*",
Key::KpSubtract => "-",
Key::KpAdd => "+",
Key::KpEnter => "Enter",
Key::KpEqual => "=",
Key::LeftShift => "Shift",
Key::LeftControl => "Control",
Key::LeftAlt => "Alt",
Key::LeftSuper => "Super",
Key::RightShift => "Shift",
Key::RightControl => "Control",
Key::RightAlt => "Alt",
Key::RightSuper => "Super",
Key::Menu => "ContextMenu",
Key::NavigateForward => "BrowserForward",
Key::NavigateBackward => "BrowserBack",
}
}
fn key_from_string(key_string: &str, location: u32) -> Option<Key> {
match key_string {
" " => Some(Key::Space),
"\"" => Some(Key::Apostrophe),
"'" => Some(Key::Apostrophe),
"<" => Some(Key::Comma),
"," => Some(Key::Comma),
"_" => Some(Key::Minus),
"-" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Minus),
">" => Some(Key::Period),
"." if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Period),
"?" => Some(Key::Slash),
"/" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Slash),
"~" => Some(Key::GraveAccent),
"`" => Some(Key::GraveAccent),
")" => Some(Key::Num0),
"0" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num0),
"!" => Some(Key::Num1),
"1" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num1),
"@" => Some(Key::Num2),
"2" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num2),
"#" => Some(Key::Num3),
"3" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num3),
"$" => Some(Key::Num4),
"4" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num4),
"%" => Some(Key::Num5),
"5" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num5),
"^" => Some(Key::Num6),
"6" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num6),
"&" => Some(Key::Num7),
"7" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num7),
"*" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num8),
"8" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num8),
"(" => Some(Key::Num9),
"9" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Num9),
":" => Some(Key::Semicolon),
";" => Some(Key::Semicolon),
"+" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Equal),
"=" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Equal),
"A" => Some(Key::A),
"a" => Some(Key::A),
"B" => Some(Key::B),
"b" => Some(Key::B),
"C" => Some(Key::C),
"c" => Some(Key::C),
"D" => Some(Key::D),
"d" => Some(Key::D),
"E" => Some(Key::E),
"e" => Some(Key::E),
"F" => Some(Key::F),
"f" => Some(Key::F),
"G" => Some(Key::G),
"g" => Some(Key::G),
"H" => Some(Key::H),
"h" => Some(Key::H),
"I" => Some(Key::I),
"i" => Some(Key::I),
"J" => Some(Key::J),
"j" => Some(Key::J),
"K" => Some(Key::K),
"k" => Some(Key::K),
"L" => Some(Key::L),
"l" => Some(Key::L),
"M" => Some(Key::M),
"m" => Some(Key::M),
"N" => Some(Key::N),
"n" => Some(Key::N),
"O" => Some(Key::O),
"o" => Some(Key::O),
"P" => Some(Key::P),
"p" => Some(Key::P),
"Q" => Some(Key::Q),
"q" => Some(Key::Q),
"R" => Some(Key::R),
"r" => Some(Key::R),
"S" => Some(Key::S),
"s" => Some(Key::S),
"T" => Some(Key::T),
"t" => Some(Key::T),
"U" => Some(Key::U),
"u" => Some(Key::U),
"V" => Some(Key::V),
"v" => Some(Key::V),
"W" => Some(Key::W),
"w" => Some(Key::W),
"X" => Some(Key::X),
"x" => Some(Key::X),
"Y" => Some(Key::Y),
"y" => Some(Key::Y),
"Z" => Some(Key::Z),
"z" => Some(Key::Z),
"{" => Some(Key::LeftBracket),
"[" => Some(Key::LeftBracket),
"|" => Some(Key::Backslash),
"\\" => Some(Key::Backslash),
"}" => Some(Key::RightBracket),
"]" => Some(Key::RightBracket),
"Escape" => Some(Key::Escape),
"Enter" if location == KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD => Some(Key::Enter),
"Tab" => Some(Key::Tab),
"Backspace" => Some(Key::Backspace),
"Insert" => Some(Key::Insert),
"Delete" => Some(Key::Delete),
"ArrowRight" => Some(Key::Right),
"ArrowLeft" => Some(Key::Left),
"ArrowDown" => Some(Key::Down),
"ArrowUp" => Some(Key::Up),
"PageUp" => Some(Key::PageUp),
"PageDown" => Some(Key::PageDown),
"Home" => Some(Key::Home),
"End" => Some(Key::End),
"CapsLock" => Some(Key::CapsLock),
"ScrollLock" => Some(Key::ScrollLock),
"NumLock" => Some(Key::NumLock),
"PrintScreen" => Some(Key::PrintScreen),
"Pause" => Some(Key::Pause),
"F1" => Some(Key::F1),
"F2" => Some(Key::F2),
"F3" => Some(Key::F3),
"F4" => Some(Key::F4),
"F5" => Some(Key::F5),
"F6" => Some(Key::F6),
"F7" => Some(Key::F7),
"F8" => Some(Key::F8),
"F9" => Some(Key::F9),
"F10" => Some(Key::F10),
"F11" => Some(Key::F11),
"F12" => Some(Key::F12),
"F13" => Some(Key::F13),
"F14" => Some(Key::F14),
"F15" => Some(Key::F15),
"F16" => Some(Key::F16),
"F17" => Some(Key::F17),
"F18" => Some(Key::F18),
"F19" => Some(Key::F19),
"F20" => Some(Key::F20),
"F21" => Some(Key::F21),
"F22" => Some(Key::F22),
"F23" => Some(Key::F23),
"F24" => Some(Key::F24),
"F25" => Some(Key::F25),
"0" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp0),
"1" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp1),
"2" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp2),
"3" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp3),
"4" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp4),
"5" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp5),
"6" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp6),
"7" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp7),
"8" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp8),
"9" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::Kp9),
"." if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpDecimal),
"/" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpDivide),
"*" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpMultiply),
"-" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpSubtract),
"+" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpAdd),
"Enter" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpEnter),
"=" if location == KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD => Some(Key::KpEqual),
"Shift" if location == KeyboardEventConstants::DOM_KEY_LOCATION_LEFT => Some(Key::LeftShift),
"Control" if location == KeyboardEventConstants::DOM_KEY_LOCATION_LEFT => Some(Key::LeftControl),
"Alt" if location == KeyboardEventConstants::DOM_KEY_LOCATION_LEFT => Some(Key::LeftAlt),
"Super" if location == KeyboardEventConstants::DOM_KEY_LOCATION_LEFT => Some(Key::LeftSuper),
"Shift" if location == KeyboardEventConstants::DOM_KEY_LOCATION_RIGHT => Some(Key::RightShift),
"Control" if location == KeyboardEventConstants::DOM_KEY_LOCATION_RIGHT => Some(Key::RightControl),
"Alt" if location == KeyboardEventConstants::DOM_KEY_LOCATION_RIGHT => Some(Key::RightAlt),
"Super" if location == KeyboardEventConstants::DOM_KEY_LOCATION_RIGHT => Some(Key::RightSuper),
"ContextMenu" => Some(Key::Menu),
"BrowserForward" => Some(Key::NavigateForward),
"BrowserBack" => Some(Key::NavigateBackward),
_ => None
}
}
// https://w3c.github.io/uievents-code/#code-value-tables
fn code_value(key: Key) -> &'static str {
match key {
Key::Space => "Space",
Key::Apostrophe => "Quote",
Key::Comma => "Comma",
Key::Minus => "Minus",
Key::Period => "Period",
Key::Slash => "Slash",
Key::GraveAccent => "Backquote",
Key::Num0 => "Digit0",
Key::Num1 => "Digit1",
Key::Num2 => "Digit2",
Key::Num3 => "Digit3",
Key::Num4 => "Digit4",
Key::Num5 => "Digit5",
Key::Num6 => "Digit6",
Key::Num7 => "Digit7",
Key::Num8 => "Digit8",
Key::Num9 => "Digit9",
Key::Semicolon => "Semicolon",
Key::Equal => "Equal",
Key::A => "KeyA",
Key::B => "KeyB",
Key::C => "KeyC",
Key::D => "KeyD",
Key::E => "KeyE",
Key::F => "KeyF",
Key::G => "KeyG",
Key::H => "KeyH",
Key::I => "KeyI",
Key::J => "KeyJ",
Key::K => "KeyK",
Key::L => "KeyL",
Key::M => "KeyM",
Key::N => "KeyN",
Key::O => "KeyO",
Key::P => "KeyP",
Key::Q => "KeyQ",
Key::R => "KeyR",
Key::S => "KeyS",
Key::T => "KeyT",
Key::U => "KeyU",
Key::V => "KeyV",
Key::W => "KeyW",
Key::X => "KeyX",
Key::Y => "KeyY",
Key::Z => "KeyZ",
Key::LeftBracket => "BracketLeft",
Key::Backslash => "Backslash",
Key::RightBracket => "BracketRight",
Key::World1 |
Key::World2 => panic!("unknown char code for {:?}", key),
Key::Escape => "Escape",
Key::Enter => "Enter",
Key::Tab => "Tab",
Key::Backspace => "Backspace",
Key::Insert => "Insert",
Key::Delete => "Delete",
Key::Right => "ArrowRight",
Key::Left => "ArrowLeft",
Key::Down => "ArrowDown",
Key::Up => "ArrowUp",
Key::PageUp => "PageUp",
Key::PageDown => "PageDown",
Key::Home => "Home",
Key::End => "End",
Key::CapsLock => "CapsLock",
Key::ScrollLock => "ScrollLock",
Key::NumLock => "NumLock",
Key::PrintScreen => "PrintScreen",
Key::Pause => "Pause",
Key::F1 => "F1",
Key::F2 => "F2",
Key::F3 => "F3",
Key::F4 => "F4",
Key::F5 => "F5",
Key::F6 => "F6",
Key::F7 => "F7",
Key::F8 => "F8",
Key::F9 => "F9",
Key::F10 => "F10",
Key::F11 => "F11",
Key::F12 => "F12",
Key::F13 => "F13",
Key::F14 => "F14",
Key::F15 => "F15",
Key::F16 => "F16",
Key::F17 => "F17",
Key::F18 => "F18",
Key::F19 => "F19",
Key::F20 => "F20",
Key::F21 => "F21",
Key::F22 => "F22",
Key::F23 => "F23",
Key::F24 => "F24",
Key::F25 => "F25",
Key::Kp0 => "Numpad0",
Key::Kp1 => "Numpad1",
Key::Kp2 => "Numpad2",
Key::Kp3 => "Numpad3",
Key::Kp4 => "Numpad4",
Key::Kp5 => "Numpad5",
Key::Kp6 => "Numpad6",
Key::Kp7 => "Numpad7",
Key::Kp8 => "Numpad8",
Key::Kp9 => "Numpad9",
Key::KpDecimal => "NumpadDecimal",
Key::KpDivide => "NumpadDivide",
Key::KpMultiply => "NumpadMultiply",
Key::KpSubtract => "NumpadSubtract",
Key::KpAdd => "NumpadAdd",
Key::KpEnter => "NumpadEnter",
Key::KpEqual => "NumpadEqual",
Key::LeftShift | Key::RightShift => "Shift",
Key::LeftControl | Key::RightControl => "Control",
Key::LeftAlt | Key::RightAlt => "Alt",
Key::LeftSuper | Key::RightSuper => "Super",
Key::Menu => "ContextMenu",
Key::NavigateForward => "BrowserForward",
Key::NavigateBackward => "BrowserBackward",
}
}
fn key_location(key: Key) -> u32 {
match key {
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::KpEnter | Key::KpEqual =>
KeyboardEventConstants::DOM_KEY_LOCATION_NUMPAD,
Key::LeftShift | Key::LeftAlt |
Key::LeftControl | Key::LeftSuper =>
KeyboardEventConstants::DOM_KEY_LOCATION_LEFT,
Key::RightShift | Key::RightAlt |
Key::RightControl | Key::RightSuper =>
KeyboardEventConstants::DOM_KEY_LOCATION_RIGHT,
_ => KeyboardEventConstants::DOM_KEY_LOCATION_STANDARD,
}
}
// https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#widl-KeyboardEvent-charCode
fn key_charcode(key: Key, mods: KeyModifiers) -> Option<u32> {
let key_string = key_value(key, mods);
if key_string.len() == 1 {
Some(key_string.chars().next().unwrap() as u32)
} else {
None
}
}
// https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#legacy-key-models
fn key_keycode(key: Key) -> u32 {
match key {
// https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#legacy-key-models
Key::Backspace => 8,
Key::Tab => 9,
Key::Enter => 13,
Key::LeftShift | Key::RightShift => 16,
Key::LeftControl | Key::RightControl => 17,
Key::LeftAlt | Key::RightAlt => 18,
Key::CapsLock => 20,
Key::Escape => 27,
Key::Space => 32,
Key::PageUp => 33,
Key::PageDown => 34,
Key::End => 35,
Key::Home => 36,
Key::Left => 37,
Key::Up => 38,
Key::Right => 39,
Key::Down => 40,
Key::Delete => 46,
// https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#optionally-fixed-virtual-key-codes
Key::Semicolon => 186,
Key::Equal => 187,
Key::Comma => 188,
Key::Minus => 189,
Key::Period => 190,
Key::Slash => 191,
Key::LeftBracket => 219,
Key::Backslash => 220,
Key::RightBracket => 221,
Key::Apostrophe => 222,
//§ B.2.1.3
Key::Num0 |
Key::Num1 |
Key::Num2 |
Key::Num3 |
Key::Num4 |
Key::Num5 |
Key::Num6 |
Key::Num7 |
Key::Num8 |
Key::Num9 => key as u32 - Key::Num0 as u32 + '0' as u32,
//§ B.2.1.4
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 as u32 - Key::A as u32 + 'A' as u32,
//§ B.2.1.8
_ => 0
}
}
#[derive(HeapSizeOf)]
pub struct KeyEventProperties {
pub key_string: &'static str,
pub code: &'static str,
pub location: u32,
pub char_code: Option<u32>,
pub key_code: u32,
}
impl KeyEventProperties {
pub fn is_printable(&self) -> bool {
self.char_code.is_some()
}
}
impl KeyboardEventMethods for KeyboardEvent {
// https://w3c.github.io/uievents/#widl-KeyboardEvent-initKeyboardEvent
fn InitKeyboardEvent(&self,
typeArg: DOMString,
canBubbleArg: bool,
cancelableArg: bool,
viewArg: Option<&Window>,
keyArg: DOMString,
locationArg: u32,
_modifiersListArg: DOMString,
repeat: bool,
_locale: DOMString) {
if self.upcast::<Event>().dispatching() {
return;
}
self.upcast::<UIEvent>()
.InitUIEvent(typeArg, canBubbleArg, cancelableArg, viewArg, 0);
*self.key_string.borrow_mut() = keyArg;
self.location.set(locationArg);
self.repeat.set(repeat);
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-key
fn Key(&self) -> DOMString {
self.key_string.borrow().clone()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-code
fn Code(&self) -> DOMString {
self.code.borrow().clone()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-location
fn Location(&self) -> u32 {
self.location.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-ctrlKey
fn CtrlKey(&self) -> bool {
self.ctrl.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-shiftKey
fn ShiftKey(&self) -> bool {
self.shift.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-altKey
fn AltKey(&self) -> bool {
self.alt.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-metaKey
fn MetaKey(&self) -> bool {
self.meta.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-repeat
fn Repeat(&self) -> bool {
self.repeat.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-isComposing
fn IsComposing(&self) -> bool {
self.is_composing.get()
}
// https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#widl-KeyboardEvent-getModifierState
fn GetModifierState(&self, keyArg: DOMString) -> bool {
match &*keyArg {
"Ctrl" => self.CtrlKey(),
"Alt" => self.AltKey(),
"Shift" => self.ShiftKey(),
"Meta" => self.MetaKey(),
"AltGraph" | "CapsLock" | "NumLock" | "ScrollLock" | "Accel" |
"Fn" | "FnLock" | "Hyper" | "OS" | "Symbol" | "SymbolLock" => false, //FIXME
_ => false,
}
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-charCode
fn CharCode(&self) -> u32 {
self.char_code.get().unwrap_or(0)
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-keyCode
fn KeyCode(&self) -> u32 {
self.key_code.get()
}
// https://w3c.github.io/uievents/#widl-KeyboardEvent-which
fn Which(&self) -> u32 {
self.char_code.get().unwrap_or(self.KeyCode())
}
// https://dom.spec.whatwg.org/#dom-event-istrusted
fn IsTrusted(&self) -> bool {
self.uievent.IsTrusted()
}
}
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