Enum On

pub enum On {
    MouseOver,
    MouseDown,
    LeftMouseDown,
    MiddleMouseDown,
    RightMouseDown,
    MouseUp,
    LeftMouseUp,
    MiddleMouseUp,
    RightMouseUp,
    MouseEnter,
    MouseLeave,
    Scroll,
    TextInput,
    VirtualKeyDown,
    VirtualKeyUp,
    HoveredFile,
    DroppedFile,
    HoveredFileCancelled,
    FocusReceived,
    FocusLost,
}

When to call a callback action - On::MouseOver, On::MouseOut, etc.

Variants

MouseOver

Mouse cursor is hovering over the element

MouseDown

Mouse cursor has is over element and is pressed (not good for “click” events - use MouseUp instead)

LeftMouseDown

(Specialization of MouseDown). Fires only if the left mouse button has been pressed while cursor was over the element

MiddleMouseDown

(Specialization of MouseDown). Fires only if the middle mouse button has been pressed while cursor was over the element

RightMouseDown

(Specialization of MouseDown). Fires only if the right mouse button has been pressed while cursor was over the element

MouseUp

Mouse button has been released while cursor was over the element

LeftMouseUp

(Specialization of MouseUp). Fires only if the left mouse button has been released while cursor was over the element

MiddleMouseUp

(Specialization of MouseUp). Fires only if the middle mouse button has been released while cursor was over the element

RightMouseUp

(Specialization of MouseUp). Fires only if the right mouse button has been released while cursor was over the element

MouseEnter

Mouse cursor has entered the element

MouseLeave

Mouse cursor has left the element

Scroll

Mousewheel / touchpad scrolling

TextInput

The window received a unicode character (also respects the system locale). Check keyboard_state.current_char to get the current pressed character.

VirtualKeyDown

A virtual keycode was pressed. Note: This is only the virtual keycode, not the actual char. If you want to get the character, use TextInput instead. A virtual key does not have to map to a printable character.

You can get all currently pressed virtual keycodes in the keyboard_state.current_virtual_keycodes and / or just the last keycode in the keyboard_state.latest_virtual_keycode.

VirtualKeyUp

A virtual keycode was release. See VirtualKeyDown for more info.

HoveredFile

A file has been dropped on the element

DroppedFile

A file is being hovered on the element

HoveredFileCancelled

A file was hovered, but has exited the window

FocusReceived

Equivalent to onfocus

FocusLost

Equivalent to onblur

Trait Implementations

impl Clone for On

fn clone(&self) -> On

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for On

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<On> for EventFilter

fn from(input: On) -> EventFilter

Converts to this type from the input type.

impl Hash for On

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for On

fn cmp(&self, other: &On) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for On

fn eq(&self, other: &On) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for On

fn partial_cmp(&self, other: &On) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for On

impl Eq for On

impl StructuralPartialEq for On