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* Copyright 2020 Adobe. All rights reserved.
* This file is licensed to you under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
import { createEffect, createUniqueId, mergeProps, onCleanup, Accessor } from "solid-js";
import { createFocusable } from "../../internals/solid-aria/createFocusable";
import { createHover } from "../../internals/solid-aria/createHover";
import { createFocusVisible, createInteractionModality } from "../../internals/solid-aria/createFocusVisible";
import type { AriaTooltipTrigger, TooltipTriggerArguments } from "./types";
import type { TooltipTriggerState } from "../state/tooltip-trigger-state";
/**
* Creates a Tooltip trigger bindings according to the WAI-ARIA specification.
*
* @link https://www.w3.org/WAI/ARIA/apg/patterns/tooltip
*/
export function createTooltipTrigger<T extends HTMLElement>(
props: TooltipTriggerArguments,
state: TooltipTriggerState,
ref: Accessor<T>
): AriaTooltipTrigger {
const tooltipId = createUniqueId();
const modality = createInteractionModality();
let isHovered = false;
let isFocused = false;
const handleShow = () => {
if (isHovered || isFocused) {
state.open(isFocused);
}
};
const handleHide = (immediate?: boolean) => {
if (!isHovered && !isFocused) {
state.close(immediate);
}
};
createEffect(() => {
const onKeyDown = (e: KeyboardEvent) => {
if (ref()) {
// Escape after clicking something can give it keyboard focus
// dismiss tooltip on esc key press
if (e.key === "Escape") {
e.stopPropagation();
state.close(true);
}
}
};
if (state.isOpen) {
document.addEventListener("keydown", onKeyDown, true);
onCleanup(() => {
document.removeEventListener("keydown", onKeyDown, true);
});
}
});
const onHoverStart = () => {
if (props.trigger === "focus") {
return;
}
// In chrome, if you hover a trigger, then another element obscures it, due to keyboard
// interactions for example, hover will end. When hover is restored after that element disappears,
// focus moves on for example, then the tooltip will reopen. We check the modality to know if the hover
// is the result of moving the mouse.
isHovered = modality() === "pointer";
handleShow();
};
const onHoverEnd = () => {
if (props.trigger === "focus") {
return;
}
// no matter how the trigger is left, we should close the tooltip
isFocused = false;
isHovered = false;
handleHide();
};
const onPressStart = () => {
// no matter how the trigger is pressed, we should close the tooltip
isFocused = false;
isHovered = false;
handleHide(true);
};
const isVisible = createFocusVisible();
const onFocus = () => {
if (isVisible) {
isFocused = true;
handleShow();
}
};
const onBlur = () => {
isFocused = false;
isHovered = false;
handleHide(true);
};
const { hoverProps } = createHover({
isDisabled: props.isDisabled,
onHoverStart,
onHoverEnd
});
const { focusableProps } = createFocusable(
{
isDisabled: props.isDisabled,
onFocus,
onBlur
},
ref
);
return {
get triggerProps() {
const merged = mergeProps(focusableProps, hoverProps, {
onPointerDown: onPressStart,
onKeyDown: onPressStart,
get "aria-describedby"() {
return state.isOpen ? tooltipId : undefined;
}
});
return merged;
},
tooltipProps: {
id: tooltipId
}
};
}
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