Add key and mouse event support that typechecks

src/lib.rs

@@ -112,6 +112,7 @@ extern crate percent_encoding;
 #[cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd", target_os = "openbsd"))]
 extern crate smithay_client_toolkit as sctk;
 #[cfg(feature = "stdweb")]
+#[macro_use]
 extern crate stdweb;
 
 pub mod dpi;

src/platform_impl/stdweb/mod.rs

@@ -1,16 +1,18 @@
 use dpi::{LogicalPosition, LogicalSize, PhysicalPosition, PhysicalSize};
-use event::{Event, StartCause};
+use event::{DeviceEvent, DeviceId as RootDI, ElementState, Event, KeyboardInput, ModifiersState, MouseButton, ScanCode, StartCause, VirtualKeyCode, WindowEvent};
 use event_loop::{ControlFlow, EventLoopWindowTarget as RootELW, EventLoopClosed};
 use icon::Icon;
 use monitor::{MonitorHandle as RootMH};
-use window::{CreationError, MouseCursor, WindowAttributes};
+use window::{CreationError, MouseCursor, WindowId as RootWI, WindowAttributes};
 use stdweb::{
+    JsSerialize,
     traits::*,
+    unstable::TryInto,
     web::{
         document,
         event::*,
         html_element::CanvasElement,
-    }
+    },
 };
 use std::cell::{RefCell, RefMut};
 use std::collections::VecDeque;
@@ -19,15 +21,18 @@ use std::marker::PhantomData;
 use std::rc::Rc;
 
 // TODO: dpi
+// TODO: close events (stdweb PR required)
 // TODO: pointer locking (stdweb PR required)
+// TODO: mouse wheel events (stdweb PR required)
+// TODO: key event: .which() (stdweb PR)
 // TODO: should there be a maximization / fullscreen API?
 
 #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct DeviceId;
+pub struct DeviceId(i32);
 
 impl DeviceId {
     pub unsafe fn dummy() -> Self {
-        DeviceId
+        DeviceId(0)
     }
 }
 
@@ -66,7 +71,6 @@ pub struct Window {
 }
 
 impl Window {
-    // TODO: type of window_target
     pub fn new<T>(target: &EventLoopWindowTarget<T>, window: WindowAttributes, platform: PlatformSpecificWindowBuilderAttributes) -> Result<Self, CreationError> {
         unimplemented!();
     }
@@ -309,9 +313,9 @@ impl<T> EventLoop<T> {
         // TODO: file dropping, PathBuf isn't useful for web
 
         let document = &document();
-        self.add_event(document, |data, event: BlurEvent| {
+        self.add_event(document, |mut data, event: BlurEvent| {
         });
-        self.add_event(document, |data, event: FocusEvent| {
+        self.add_event(document, |mut data, event: FocusEvent| {
         });
 
         // TODO: what to do after attaching events
@@ -345,27 +349,96 @@ impl<T> EventLoop<T> {
     fn register_window(&self, other: &Window) {
         let canvas = &other.canvas;
         
-        self.add_event(canvas, |data, event: KeyDownEvent| {
-            // TODO: received character
-            // TODO: keyboard input
+        self.add_event(canvas, |mut data, event: KeyDownEvent| {
+            let key = event.key();
+            let mut characters = key.chars();
+            let first = characters.next();
+            let second = characters.next();
+            if let (Some(key), None) = (first, second) {
+                data.events.push_back(Event::WindowEvent {
+                    window_id: RootWI(WindowId),
+                    event: WindowEvent::ReceivedCharacter(key)
                 });
-        self.add_event(canvas, |data, event: KeyUpEvent| {
-            // TODO: keyboard input
+            }
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::KeyboardInput {
+                    // TODO: is there a way to get keyboard device?
+                    device_id: RootDI(unsafe { DeviceId::dummy() }),
+                    input: KeyboardInput {
+                        scancode: scancode(&event),
+                        state: ElementState::Pressed,
+                        virtual_keycode: button_mapping(&event),
+                        modifiers: keyboard_modifiers_state(&event),
+                    }
+                }
             });
-        self.add_event(canvas, |data, _: PointerOutEvent| {
-            // TODO
         });
-        self.add_event(canvas, |data, _: PointerOverEvent| {
-            // TODO
+        self.add_event(canvas, |mut data, event: KeyUpEvent| {
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::KeyboardInput {
+                    // TODO: is there a way to get keyboard device?
+                    device_id: RootDI(unsafe { DeviceId::dummy() }),
+                    input: KeyboardInput {
+                        scancode: scancode(&event),
+                        state: ElementState::Released,
+                        virtual_keycode: button_mapping(&event),
+                        modifiers: keyboard_modifiers_state(&event),
+                    }
+                }
             });
-        self.add_event(canvas, |data, event: PointerMoveEvent| {
-            // TODO: mouse move
         });
-        self.add_event(canvas, |data, event: PointerUpEvent| {
-            // TODO: mouse pointers
+        self.add_event(canvas, |mut data, event: PointerOutEvent| {
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::CursorLeft {
+                    device_id: RootDI(DeviceId(event.pointer_id()))
+                }
+            });
+        });
+        self.add_event(canvas, |mut data, event: PointerOverEvent| {
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::CursorEntered {
+                    device_id: RootDI(DeviceId(event.pointer_id()))
+                }
+            });
+        });
+        self.add_event(canvas, |mut data, event: PointerMoveEvent| {
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::CursorMoved {
+                    device_id: RootDI(DeviceId(event.pointer_id())),
+                    position: LogicalPosition {
+                        x: event.offset_x(),
+                        y: event.offset_y()
+                    },
+                    modifiers: mouse_modifiers_state(&event)
+                }
+            });
+        });
+        self.add_event(canvas, |mut data, event: PointerUpEvent| {
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::MouseInput {
+                    device_id: RootDI(DeviceId(event.pointer_id())),
+                    state: ElementState::Pressed,
+                    button: mouse_button(&event),
+                    modifiers: mouse_modifiers_state(&event)
+                }
+            });
+        });
+        self.add_event(canvas, |mut data, event: PointerDownEvent| {
+            data.events.push_back(Event::WindowEvent {
+                window_id: RootWI(WindowId),
+                event: WindowEvent::MouseInput {
+                    device_id: RootDI(DeviceId(event.pointer_id())),
+                    state: ElementState::Released,
+                    button: mouse_button(&event),
+                    modifiers: mouse_modifiers_state(&event)
+                }
             });
-        self.add_event(canvas, |data, event: PointerDownEvent| {
-            // TODO: mouse pointers
         });
     }
 
@@ -383,6 +456,202 @@ impl<T> EventLoop<T> {
     }
 }
 
+fn mouse_modifiers_state(event: &impl IMouseEvent) -> ModifiersState {
+    ModifiersState {
+        shift: event.shift_key(),
+        ctrl: event.ctrl_key(),
+        alt: event.alt_key(),
+        logo: event.meta_key(),
+    }
+}
+
+fn mouse_button(event: &impl IMouseEvent) -> MouseButton {
+    match event.button() {
+        stdweb::web::event::MouseButton::Left => MouseButton::Left,
+        stdweb::web::event::MouseButton::Right => MouseButton::Right,
+        stdweb::web::event::MouseButton::Wheel => MouseButton::Middle,
+        stdweb::web::event::MouseButton::Button4 => MouseButton::Other(0),
+        stdweb::web::event::MouseButton::Button5 => MouseButton::Other(1),
+    }
+}
+
+fn keyboard_modifiers_state(event: &impl IKeyboardEvent) -> ModifiersState {
+    ModifiersState {
+        shift: event.shift_key(),
+        ctrl: event.ctrl_key(),
+        alt: event.alt_key(),
+        logo: event.meta_key(),
+    }
+}
+
+fn scancode<T: JsSerialize>(event: &T) -> ScanCode {
+    let which = js! ( return @{event}.which(); );
+    which.try_into().expect("The which value should be a number")
+}
+
+fn button_mapping(event: &impl IKeyboardEvent) -> Option<VirtualKeyCode> {
+    Some(match &event.code()[..] {
+        "Digit1" => VirtualKeyCode::Key1,
+        "Digit2" => VirtualKeyCode::Key2,
+        "Digit3" => VirtualKeyCode::Key3,
+        "Digit4" => VirtualKeyCode::Key4,
+        "Digit5" => VirtualKeyCode::Key5,
+        "Digit6" => VirtualKeyCode::Key6,
+        "Digit7" => VirtualKeyCode::Key7,
+        "Digit8" => VirtualKeyCode::Key8,
+        "Digit9" => VirtualKeyCode::Key9,
+        "Digit0" => VirtualKeyCode::Key0,
+        "KeyA" => VirtualKeyCode::A,
+        "KeyB" => VirtualKeyCode::B,
+        "KeyC" => VirtualKeyCode::C,
+        "KeyD" => VirtualKeyCode::D,
+        "KeyE" => VirtualKeyCode::E,
+        "KeyF" => VirtualKeyCode::F,
+        "KeyG" => VirtualKeyCode::G,
+        "KeyH" => VirtualKeyCode::H,
+        "KeyI" => VirtualKeyCode::I,
+        "KeyJ" => VirtualKeyCode::J,
+        "KeyK" => VirtualKeyCode::K,
+        "KeyL" => VirtualKeyCode::L,
+        "KeyM" => VirtualKeyCode::M,
+        "KeyN" => VirtualKeyCode::N,
+        "KeyO" => VirtualKeyCode::O,
+        "KeyP" => VirtualKeyCode::P,
+        "KeyQ" => VirtualKeyCode::Q,
+        "KeyR" => VirtualKeyCode::R,
+        "KeyS" => VirtualKeyCode::S,
+        "KeyT" => VirtualKeyCode::T,
+        "KeyU" => VirtualKeyCode::U,
+        "KeyV" => VirtualKeyCode::V,
+        "KeyW" => VirtualKeyCode::W,
+        "KeyX" => VirtualKeyCode::X,
+        "KeyY" => VirtualKeyCode::Y,
+        "KeyZ" => VirtualKeyCode::Z,
+        "Escape" => VirtualKeyCode::Escape,
+        "F1" => VirtualKeyCode::F1,
+        "F2" => VirtualKeyCode::F2,
+        "F3" => VirtualKeyCode::F3,
+        "F4" => VirtualKeyCode::F4,
+        "F5" => VirtualKeyCode::F5,
+        "F6" => VirtualKeyCode::F6,
+        "F7" => VirtualKeyCode::F7,
+        "F8" => VirtualKeyCode::F8,
+        "F9" => VirtualKeyCode::F9,
+        "F10" => VirtualKeyCode::F10,
+        "F11" => VirtualKeyCode::F11,
+        "F12" => VirtualKeyCode::F12,
+        "F13" => VirtualKeyCode::F13,
+        "F14" => VirtualKeyCode::F14,
+        "F15" => VirtualKeyCode::F15,
+        "F16" => VirtualKeyCode::F16,
+        "F17" => VirtualKeyCode::F17,
+        "F18" => VirtualKeyCode::F18,
+        "F19" => VirtualKeyCode::F19,
+        "F20" => VirtualKeyCode::F20,
+        "F21" => VirtualKeyCode::F21,
+        "F22" => VirtualKeyCode::F22,
+        "F23" => VirtualKeyCode::F23,
+        "F24" => VirtualKeyCode::F24,
+        "PrintScreen" => VirtualKeyCode::Snapshot,
+        "ScrollLock" => VirtualKeyCode::Scroll,
+        "Pause" => VirtualKeyCode::Pause,
+        "Insert" => VirtualKeyCode::Insert,
+        "Home" => VirtualKeyCode::Home,
+        "Delete" => VirtualKeyCode::Delete,
+        "End" => VirtualKeyCode::End,
+        "PageDown" => VirtualKeyCode::PageDown,
+        "PageUp" => VirtualKeyCode::PageUp,
+        "ArrowLeft" => VirtualKeyCode::Left,
+        "ArrowUp" => VirtualKeyCode::Up,
+        "ArrowRight" => VirtualKeyCode::Right,
+        "ArrowDown" => VirtualKeyCode::Down,
+        "Backspace" => VirtualKeyCode::Back,
+        "Enter" => VirtualKeyCode::Return,
+        "Space" => VirtualKeyCode::Space,
+        "Compose" => VirtualKeyCode::Compose,
+        "Caret" => VirtualKeyCode::Caret,
+        "NumLock" => VirtualKeyCode::Numlock,
+        "Numpad0" => VirtualKeyCode::Numpad0,
+        "Numpad1" => VirtualKeyCode::Numpad1,
+        "Numpad2" => VirtualKeyCode::Numpad2,
+        "Numpad3" => VirtualKeyCode::Numpad3,
+        "Numpad4" => VirtualKeyCode::Numpad4,
+        "Numpad5" => VirtualKeyCode::Numpad5,
+        "Numpad6" => VirtualKeyCode::Numpad6,
+        "Numpad7" => VirtualKeyCode::Numpad7,
+        "Numpad8" => VirtualKeyCode::Numpad8,
+        "Numpad9" => VirtualKeyCode::Numpad9,
+        "AbntC1" => VirtualKeyCode::AbntC1,
+        "AbntC2" => VirtualKeyCode::AbntC2,
+        "NumpadAdd" => VirtualKeyCode::Add,
+        "Quote" => VirtualKeyCode::Apostrophe,
+        "Apps" => VirtualKeyCode::Apps,
+        "At" => VirtualKeyCode::At,
+        "Ax" => VirtualKeyCode::Ax,
+        "Backslash" => VirtualKeyCode::Backslash,
+        "Calculator" => VirtualKeyCode::Calculator,
+        "Capital" => VirtualKeyCode::Capital,
+        "Semicolon" => VirtualKeyCode::Semicolon,
+        "Comma" => VirtualKeyCode::Comma,
+        "Convert" => VirtualKeyCode::Convert,
+        "NumpadDecimal" => VirtualKeyCode::Decimal,
+        "NumpadDivide" => VirtualKeyCode::Divide,
+        "Equal" => VirtualKeyCode::Equals,
+        "Backquote" => VirtualKeyCode::Grave,
+        "Kana" => VirtualKeyCode::Kana,
+        "Kanji" => VirtualKeyCode::Kanji,
+        "AltLeft" => VirtualKeyCode::LAlt,
+        "BracketLeft" => VirtualKeyCode::LBracket,
+        "ControlLeft" => VirtualKeyCode::LControl,
+        "ShiftLeft" => VirtualKeyCode::LShift,
+        "MetaLeft" => VirtualKeyCode::LWin,
+        "Mail" => VirtualKeyCode::Mail,
+        "MediaSelect" => VirtualKeyCode::MediaSelect,
+        "MediaStop" => VirtualKeyCode::MediaStop,
+        "Minus" => VirtualKeyCode::Minus,
+        "NumpadMultiply" => VirtualKeyCode::Multiply,
+        "Mute" => VirtualKeyCode::Mute,
+        "LaunchMyComputer" => VirtualKeyCode::MyComputer,
+        "NavigateForward" => VirtualKeyCode::NavigateForward,
+        "NavigateBackward" => VirtualKeyCode::NavigateBackward,
+        "NextTrack" => VirtualKeyCode::NextTrack,
+        "NoConvert" => VirtualKeyCode::NoConvert,
+        "NumpadComma" => VirtualKeyCode::NumpadComma,
+        "NumpadEnter" => VirtualKeyCode::NumpadEnter,
+        "NumpadEquals" => VirtualKeyCode::NumpadEquals,
+        "OEM102" => VirtualKeyCode::OEM102,
+        "Period" => VirtualKeyCode::Period,
+        "PlayPause" => VirtualKeyCode::PlayPause,
+        "Power" => VirtualKeyCode::Power,
+        "PrevTrack" => VirtualKeyCode::PrevTrack,
+        "AltRight" => VirtualKeyCode::RAlt,
+        "BracketRight" => VirtualKeyCode::RBracket,
+        "ControlRight" => VirtualKeyCode::RControl,
+        "ShiftRight" => VirtualKeyCode::RShift,
+        "MetaRight" => VirtualKeyCode::RWin,
+        "Slash" => VirtualKeyCode::Slash,
+        "Sleep" => VirtualKeyCode::Sleep,
+        "Stop" => VirtualKeyCode::Stop,
+        "NumpadSubtract" => VirtualKeyCode::Subtract,
+        "Sysrq" => VirtualKeyCode::Sysrq,
+        "Tab" => VirtualKeyCode::Tab,
+        "Underline" => VirtualKeyCode::Underline,
+        "Unlabeled" => VirtualKeyCode::Unlabeled,
+        "AudioVolumeDown" => VirtualKeyCode::VolumeDown,
+        "AudioVolumeUp" => VirtualKeyCode::VolumeUp,
+        "Wake" => VirtualKeyCode::Wake,
+        "WebBack" => VirtualKeyCode::WebBack,
+        "WebFavorites" => VirtualKeyCode::WebFavorites,
+        "WebForward" => VirtualKeyCode::WebForward,
+        "WebHome" => VirtualKeyCode::WebHome,
+        "WebRefresh" => VirtualKeyCode::WebRefresh,
+        "WebSearch" => VirtualKeyCode::WebSearch,
+        "WebStop" => VirtualKeyCode::WebStop,
+        "Yen" => VirtualKeyCode::Yen,
+        _ => return None
+    })
+}
+
 #[derive(Clone)]
 pub struct EventLoopProxy<T> {
     data: Rc<RefCell<EventLoopData<T>>>