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feat: Forward all events (on:*) #8356

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210 changes: 107 additions & 103 deletions elements/index.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -63,148 +63,152 @@ export type MessageEventHandler<T extends EventTarget> = EventHandler<MessageEve
// ----------------------------------------------------------------------

export interface DOMAttributes<T extends EventTarget> {

// forward any event
'on:*'?: never;

// Clipboard Events
'on:copy'?: ClipboardEventHandler<T> | undefined | null;
'on:cut'?: ClipboardEventHandler<T> | undefined | null;
'on:paste'?: ClipboardEventHandler<T> | undefined | null;
'on:copy'?: ClipboardEventHandler<T> | undefined | null | false;
'on:cut'?: ClipboardEventHandler<T> | undefined | null | false;
'on:paste'?: ClipboardEventHandler<T> | undefined | null | false;

// Composition Events
'on:compositionend'?: CompositionEventHandler<T> | undefined | null;
'on:compositionstart'?: CompositionEventHandler<T> | undefined | null;
'on:compositionupdate'?: CompositionEventHandler<T> | undefined | null;
'on:compositionend'?: CompositionEventHandler<T> | undefined | null | false;
'on:compositionstart'?: CompositionEventHandler<T> | undefined | null | false;
'on:compositionupdate'?: CompositionEventHandler<T> | undefined | null | false;

// Focus Events
'on:focus'?: FocusEventHandler<T> | undefined | null;
'on:focusin'?: FocusEventHandler<T> | undefined | null;
'on:focusout'?: FocusEventHandler<T> | undefined | null;
'on:blur'?: FocusEventHandler<T> | undefined | null;
'on:focus'?: FocusEventHandler<T> | undefined | null | false;
'on:focusin'?: FocusEventHandler<T> | undefined | null | false;
'on:focusout'?: FocusEventHandler<T> | undefined | null | false;
'on:blur'?: FocusEventHandler<T> | undefined | null | false;

// Form Events
'on:change'?: FormEventHandler<T> | undefined | null;
'on:beforeinput'?: EventHandler<InputEvent, T> | undefined | null;
'on:input'?: FormEventHandler<T> | undefined | null;
'on:reset'?: FormEventHandler<T> | undefined | null;
'on:submit'?: EventHandler<Event & { readonly submitter: HTMLElement | null; }, T> | undefined | null; // TODO make this SubmitEvent once we require TS>=4.4
'on:invalid'?: EventHandler<Event, T> | undefined | null;
'on:formdata'?: EventHandler<Event & { readonly formData: FormData; }, T> | undefined | null; // TODO make this FormDataEvent once we require TS>=4.4
'on:change'?: FormEventHandler<T> | undefined | null | false;
'on:beforeinput'?: EventHandler<InputEvent, T> | undefined | null | false;
'on:input'?: FormEventHandler<T> | undefined | null | false;
'on:reset'?: FormEventHandler<T> | undefined | null | false;
'on:submit'?: EventHandler<Event & { readonly submitter: HTMLElement | null | false; }, T> | undefined | null | false; // TODO make this SubmitEvent once we require TS>=4.4
'on:invalid'?: EventHandler<Event, T> | undefined | null | false;
'on:formdata'?: EventHandler<Event & { readonly formData: FormData; }, T> | undefined | null | false; // TODO make this FormDataEvent once we require TS>=4.4

// Image Events
'on:load'?: EventHandler | undefined | null;
'on:error'?: EventHandler | undefined | null; // also a Media Event
'on:load'?: EventHandler | undefined | null | false;
'on:error'?: EventHandler | undefined | null | false; // also a Media Event

// Detail Events
'on:toggle'?: EventHandler<Event, T> | undefined | null;
'on:toggle'?: EventHandler<Event, T> | undefined | null | false;

// Keyboard Events
'on:keydown'?: KeyboardEventHandler<T> | undefined | null;
'on:keypress'?: KeyboardEventHandler<T> | undefined | null;
'on:keyup'?: KeyboardEventHandler<T> | undefined | null;
'on:keydown'?: KeyboardEventHandler<T> | undefined | null | false;
'on:keypress'?: KeyboardEventHandler<T> | undefined | null | false;
'on:keyup'?: KeyboardEventHandler<T> | undefined | null | false;

// Media Events
'on:abort'?: EventHandler<Event, T> | undefined | null;
'on:canplay'?: EventHandler<Event, T> | undefined | null;
'on:canplaythrough'?: EventHandler<Event, T> | undefined | null;
'on:cuechange'?: EventHandler<Event, T> | undefined | null;
'on:durationchange'?: EventHandler<Event, T> | undefined | null;
'on:emptied'?: EventHandler<Event, T> | undefined | null;
'on:encrypted'?: EventHandler<Event, T> | undefined | null;
'on:ended'?: EventHandler<Event, T> | undefined | null;
'on:loadeddata'?: EventHandler<Event, T> | undefined | null;
'on:loadedmetadata'?: EventHandler<Event, T> | undefined | null;
'on:loadstart'?: EventHandler<Event, T> | undefined | null;
'on:pause'?: EventHandler<Event, T> | undefined | null;
'on:play'?: EventHandler<Event, T> | undefined | null;
'on:playing'?: EventHandler<Event, T> | undefined | null;
'on:progress'?: EventHandler<Event, T> | undefined | null;
'on:ratechange'?: EventHandler<Event, T> | undefined | null;
'on:seeked'?: EventHandler<Event, T> | undefined | null;
'on:seeking'?: EventHandler<Event, T> | undefined | null;
'on:stalled'?: EventHandler<Event, T> | undefined | null;
'on:suspend'?: EventHandler<Event, T> | undefined | null;
'on:timeupdate'?: EventHandler<Event, T> | undefined | null;
'on:volumechange'?: EventHandler<Event, T> | undefined | null;
'on:waiting'?: EventHandler<Event, T> | undefined | null;
'on:abort'?: EventHandler<Event, T> | undefined | null | false;
'on:canplay'?: EventHandler<Event, T> | undefined | null | false;
'on:canplaythrough'?: EventHandler<Event, T> | undefined | null | false;
'on:cuechange'?: EventHandler<Event, T> | undefined | null | false;
'on:durationchange'?: EventHandler<Event, T> | undefined | null | false;
'on:emptied'?: EventHandler<Event, T> | undefined | null | false;
'on:encrypted'?: EventHandler<Event, T> | undefined | null | false;
'on:ended'?: EventHandler<Event, T> | undefined | null | false;
'on:loadeddata'?: EventHandler<Event, T> | undefined | null | false;
'on:loadedmetadata'?: EventHandler<Event, T> | undefined | null | false;
'on:loadstart'?: EventHandler<Event, T> | undefined | null | false;
'on:pause'?: EventHandler<Event, T> | undefined | null | false;
'on:play'?: EventHandler<Event, T> | undefined | null | false;
'on:playing'?: EventHandler<Event, T> | undefined | null | false;
'on:progress'?: EventHandler<Event, T> | undefined | null | false;
'on:ratechange'?: EventHandler<Event, T> | undefined | null | false;
'on:seeked'?: EventHandler<Event, T> | undefined | null | false;
'on:seeking'?: EventHandler<Event, T> | undefined | null | false;
'on:stalled'?: EventHandler<Event, T> | undefined | null | false;
'on:suspend'?: EventHandler<Event, T> | undefined | null | false;
'on:timeupdate'?: EventHandler<Event, T> | undefined | null | false;
'on:volumechange'?: EventHandler<Event, T> | undefined | null | false;
'on:waiting'?: EventHandler<Event, T> | undefined | null | false;

// MouseEvents
'on:auxclick'?: MouseEventHandler<T> | undefined | null;
'on:click'?: MouseEventHandler<T> | undefined | null;
'on:contextmenu'?: MouseEventHandler<T> | undefined | null;
'on:dblclick'?: MouseEventHandler<T> | undefined | null;
'on:drag'?: DragEventHandler<T> | undefined | null;
'on:dragend'?: DragEventHandler<T> | undefined | null;
'on:dragenter'?: DragEventHandler<T> | undefined | null;
'on:dragexit'?: DragEventHandler<T> | undefined | null;
'on:dragleave'?: DragEventHandler<T> | undefined | null;
'on:dragover'?: DragEventHandler<T> | undefined | null;
'on:dragstart'?: DragEventHandler<T> | undefined | null;
'on:drop'?: DragEventHandler<T> | undefined | null;
'on:mousedown'?: MouseEventHandler<T> | undefined | null;
'on:mouseenter'?: MouseEventHandler<T> | undefined | null;
'on:mouseleave'?: MouseEventHandler<T> | undefined | null;
'on:mousemove'?: MouseEventHandler<T> | undefined | null;
'on:mouseout'?: MouseEventHandler<T> | undefined | null;
'on:mouseover'?: MouseEventHandler<T> | undefined | null;
'on:mouseup'?: MouseEventHandler<T> | undefined | null;
'on:auxclick'?: MouseEventHandler<T> | undefined | null | false;
'on:click'?: MouseEventHandler<T> | undefined | null | false;
'on:contextmenu'?: MouseEventHandler<T> | undefined | null | false;
'on:dblclick'?: MouseEventHandler<T> | undefined | null | false;
'on:drag'?: DragEventHandler<T> | undefined | null | false;
'on:dragend'?: DragEventHandler<T> | undefined | null | false;
'on:dragenter'?: DragEventHandler<T> | undefined | null | false;
'on:dragexit'?: DragEventHandler<T> | undefined | null | false;
'on:dragleave'?: DragEventHandler<T> | undefined | null | false;
'on:dragover'?: DragEventHandler<T> | undefined | null | false;
'on:dragstart'?: DragEventHandler<T> | undefined | null | false;
'on:drop'?: DragEventHandler<T> | undefined | null | false;
'on:mousedown'?: MouseEventHandler<T> | undefined | null | false;
'on:mouseenter'?: MouseEventHandler<T> | undefined | null | false;
'on:mouseleave'?: MouseEventHandler<T> | undefined | null | false;
'on:mousemove'?: MouseEventHandler<T> | undefined | null | false;
'on:mouseout'?: MouseEventHandler<T> | undefined | null | false;
'on:mouseover'?: MouseEventHandler<T> | undefined | null | false;
'on:mouseup'?: MouseEventHandler<T> | undefined | null | false;

// Selection Events
'on:select'?: EventHandler<Event, T> | undefined | null;
'on:selectionchange'?: EventHandler<Event, T> | undefined | null;
'on:selectstart'?: EventHandler<Event, T> | undefined | null;
'on:select'?: EventHandler<Event, T> | undefined | null | false;
'on:selectionchange'?: EventHandler<Event, T> | undefined | null | false;
'on:selectstart'?: EventHandler<Event, T> | undefined | null | false;

// Touch Events
'on:touchcancel'?: TouchEventHandler<T> | undefined | null;
'on:touchend'?: TouchEventHandler<T> | undefined | null;
'on:touchmove'?: TouchEventHandler<T> | undefined | null;
'on:touchstart'?: TouchEventHandler<T> | undefined | null;
'on:touchcancel'?: TouchEventHandler<T> | undefined | null | false;
'on:touchend'?: TouchEventHandler<T> | undefined | null | false;
'on:touchmove'?: TouchEventHandler<T> | undefined | null | false;
'on:touchstart'?: TouchEventHandler<T> | undefined | null | false;

// Pointer Events
'on:gotpointercapture'?: PointerEventHandler<T> | undefined | null;
'on:pointercancel'?: PointerEventHandler<T> | undefined | null;
'on:pointerdown'?: PointerEventHandler<T> | undefined | null;
'on:pointerenter'?: PointerEventHandler<T> | undefined | null;
'on:pointerleave'?: PointerEventHandler<T> | undefined | null;
'on:pointermove'?: PointerEventHandler<T> | undefined | null;
'on:pointerout'?: PointerEventHandler<T> | undefined | null;
'on:pointerover'?: PointerEventHandler<T> | undefined | null;
'on:pointerup'?: PointerEventHandler<T> | undefined | null;
'on:lostpointercapture'?: PointerEventHandler<T> | undefined | null;
'on:gotpointercapture'?: PointerEventHandler<T> | undefined | null | false;
'on:pointercancel'?: PointerEventHandler<T> | undefined | null | false;
'on:pointerdown'?: PointerEventHandler<T> | undefined | null | false;
'on:pointerenter'?: PointerEventHandler<T> | undefined | null | false;
'on:pointerleave'?: PointerEventHandler<T> | undefined | null | false;
'on:pointermove'?: PointerEventHandler<T> | undefined | null | false;
'on:pointerout'?: PointerEventHandler<T> | undefined | null | false;
'on:pointerover'?: PointerEventHandler<T> | undefined | null | false;
'on:pointerup'?: PointerEventHandler<T> | undefined | null | false;
'on:lostpointercapture'?: PointerEventHandler<T> | undefined | null | false;

// UI Events
'on:scroll'?: UIEventHandler<T> | undefined | null;
'on:resize'?: UIEventHandler<T> | undefined | null;
'on:scroll'?: UIEventHandler<T> | undefined | null | false;
'on:resize'?: UIEventHandler<T> | undefined | null | false;

// Wheel Events
'on:wheel'?: WheelEventHandler<T> | undefined | null;
'on:wheel'?: WheelEventHandler<T> | undefined | null | false;

// Animation Events
'on:animationstart'?: AnimationEventHandler<T> | undefined | null;
'on:animationend'?: AnimationEventHandler<T> | undefined | null;
'on:animationiteration'?: AnimationEventHandler<T> | undefined | null;
'on:animationstart'?: AnimationEventHandler<T> | undefined | null | false;
'on:animationend'?: AnimationEventHandler<T> | undefined | null | false;
'on:animationiteration'?: AnimationEventHandler<T> | undefined | null | false;

// Transition Events
'on:transitionstart'?: TransitionEventHandler<T> | undefined | null;
'on:transitionrun'?: TransitionEventHandler<T> | undefined | null;
'on:transitionend'?: TransitionEventHandler<T> | undefined | null;
'on:transitioncancel'?: TransitionEventHandler<T> | undefined | null;
'on:transitionstart'?: TransitionEventHandler<T> | undefined | null | false;
'on:transitionrun'?: TransitionEventHandler<T> | undefined | null | false;
'on:transitionend'?: TransitionEventHandler<T> | undefined | null | false;
'on:transitioncancel'?: TransitionEventHandler<T> | undefined | null | false;

// Svelte Transition Events
'on:outrostart'?: EventHandler<CustomEvent<null>, T> | undefined | null;
'on:outroend'?: EventHandler<CustomEvent<null>, T> | undefined | null;
'on:introstart'?: EventHandler<CustomEvent<null>, T> | undefined | null;
'on:introend'?: EventHandler<CustomEvent<null>, T> | undefined | null;
'on:outrostart'?: EventHandler<CustomEvent<null>, T> | undefined | null | false;
'on:outroend'?: EventHandler<CustomEvent<null>, T> | undefined | null | false;
'on:introstart'?: EventHandler<CustomEvent<null>, T> | undefined | null | false;
'on:introend'?: EventHandler<CustomEvent<null>, T> | undefined | null | false;

// Message Events
'on:message'?: MessageEventHandler<T> | undefined | null;
'on:messageerror'?: MessageEventHandler<T> | undefined | null;
'on:message'?: MessageEventHandler<T> | undefined | null | false;
'on:messageerror'?: MessageEventHandler<T> | undefined | null | false;

// Document Events
'on:visibilitychange'?: EventHandler<Event, T> | undefined | null;
'on:visibilitychange'?: EventHandler<Event, T> | undefined | null | false;

// Global Events
'on:cancel'?: EventHandler<Event, T> | undefined | null;
'on:close'?: EventHandler<Event, T> | undefined | null;
'on:fullscreenchange'?: EventHandler<Event, T> | undefined | null;
'on:fullscreenerror'?: EventHandler<Event, T> | undefined | null;
'on:cancel'?: EventHandler<Event, T> | undefined | null | false;
'on:close'?: EventHandler<Event, T> | undefined | null | false;
'on:fullscreenchange'?: EventHandler<Event, T> | undefined | null | false;
'on:fullscreenerror'?: EventHandler<Event, T> | undefined | null | false;
}

// All the WAI-ARIA 1.1 attributes from https://www.w3.org/TR/wai-aria-1.1/
Expand Down
14 changes: 13 additions & 1 deletion src/compiler/compile/compiler_errors.ts
Original file line number Diff line number Diff line change
Expand Up @@ -289,5 +289,17 @@ export default {
invalid_style_directive_modifier: (valid: string) => ({
code: 'invalid-style-directive-modifier',
message: `Valid modifiers for style directives are: ${valid}`
})
}),
invalid_forward_event_alias_count: {
code: 'invalid-forward-event-alias-count',
message: 'The on: forward directive accept only one modifier (the forward alias)'
},
invalid_forward_event_alias_any: {
code: 'invalid-forward-event-alias-any',
message: 'The alias for on:* must be of the following form : "prefix*" or "*suffix"'
},
invalid_foward_event_any: {
code: 'invalid-forward-event-any',
message: 'The directive on:* cannot be used with an handler'
}
};
8 changes: 6 additions & 2 deletions src/compiler/compile/compiler_warnings.ts
Original file line number Diff line number Diff line change
Expand Up @@ -212,6 +212,10 @@ export default {
},
invalid_rest_eachblock_binding: (rest_element_name: string) => ({
code: 'invalid-rest-eachblock-binding',
message: `...${rest_element_name} operator will create a new object and binding propagation with original object will not work`
})
message: `...${rest_element_name} operator will create a new object and binding propogation with original object will not work`
}),
invalid_forward_event_alias: {
code: 'invalid-forward-event-alias',
message: 'Forward-event accept only one modifier : the event alias name'
}
};
59 changes: 1 addition & 58 deletions src/compiler/compile/nodes/Element.ts
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@ import { namespaces } from '../../utils/namespaces';
import map_children from './shared/map_children';
import { regex_dimensions, regex_starts_with_newline, regex_non_whitespace_character } from '../../utils/patterns';
import fuzzymatch from '../../utils/fuzzymatch';
import list from '../../utils/list';
import Let from './Let';
import TemplateScope from './shared/TemplateScope';
import { INode } from './interfaces';
Expand Down Expand Up @@ -180,25 +179,6 @@ function get_implicit_role(name: string, attribute_map: Map<string, Attribute>)

const invisible_elements = new Set(['meta', 'html', 'script', 'style']);

const valid_modifiers = new Set([
'preventDefault',
'stopPropagation',
'stopImmediatePropagation',
'capture',
'once',
'passive',
'nonpassive',
'self',
'trusted'
]);

const passive_events = new Set([
'wheel',
'touchstart',
'touchmove',
'touchend',
'touchcancel'
]);

const react_attributes = new Map([
['className', 'class'],
Expand Down Expand Up @@ -1041,44 +1021,7 @@ export default class Element extends Node {
}

validate_event_handlers() {
const { component } = this;

this.handlers.forEach(handler => {
if (handler.modifiers.has('passive') && handler.modifiers.has('preventDefault')) {
return component.error(handler, compiler_errors.invalid_event_modifier_combination('passive', 'preventDefault'));
}

if (handler.modifiers.has('passive') && handler.modifiers.has('nonpassive')) {
return component.error(handler, compiler_errors.invalid_event_modifier_combination('passive', 'nonpassive'));
}

handler.modifiers.forEach(modifier => {
if (!valid_modifiers.has(modifier)) {
return component.error(handler, compiler_errors.invalid_event_modifier(list(Array.from(valid_modifiers))));
}

if (modifier === 'passive') {
if (passive_events.has(handler.name)) {
if (handler.can_make_passive) {
component.warn(handler, compiler_warnings.redundant_event_modifier_for_touch);
}
} else {
component.warn(handler, compiler_warnings.redundant_event_modifier_passive);
}
}

if (component.compile_options.legacy && (modifier === 'once' || modifier === 'passive')) {
// TODO this could be supported, but it would need a few changes to
// how event listeners work
return component.error(handler, compiler_errors.invalid_event_modifier_legacy(modifier));
}
});

if (passive_events.has(handler.name) && handler.can_make_passive && !handler.modifiers.has('preventDefault') && !handler.modifiers.has('nonpassive')) {
// touch/wheel events should be passive by default
handler.modifiers.add('passive');
}
});
this.handlers.forEach(h => h.validate());
}

is_media_node() {
Expand Down
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