@blueprintjs/core
Version:
Core styles & components
75 lines • 3.34 kB
JavaScript
/*
* Copyright 2021 Palantir Technologies, Inc. All rights reserved.
*
* Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as React from "react";
import { Classes, DISPLAYNAME_PREFIX } from "../../common";
import { getBasePlacement } from "./popperUtils";
// these paths come from the Core Kit Sketch file
// https://github.com/palantir/blueprint/blob/develop/resources/sketch/Core%20Kit.sketch
const SVG_SHADOW_PATH = "M8.11 6.302c1.015-.936 1.887-2.922 1.887-4.297v26c0-1.378" +
"-.868-3.357-1.888-4.297L.925 17.09c-1.237-1.14-1.233-3.034 0-4.17L8.11 6.302z";
const SVG_ARROW_PATH = "M8.787 7.036c1.22-1.125 2.21-3.376 2.21-5.03V0v30-2.005" +
"c0-1.654-.983-3.9-2.21-5.03l-7.183-6.616c-.81-.746-.802-1.96 0-2.7l7.183-6.614z";
// additional space between arrow and edge of target
const ARROW_SPACING = 4;
export const POPOVER_ARROW_SVG_SIZE = 30;
export const TOOLTIP_ARROW_SVG_SIZE = 22;
/* istanbul ignore next */
/** Modifier helper function to compute arrow rotate() transform */
function getArrowAngle(placement) {
if (placement == null) {
return 0;
}
// can only be top/left/bottom/right - auto is resolved internally
switch (getBasePlacement(placement)) {
case "top":
return -90;
case "left":
return 180;
case "bottom":
return 90;
default:
return 0;
}
}
/* istanbul ignore next */
/**
* Popper's builtin "arrow" modifier options.padding doesn't seem to work for us, so we
* need to compute our own offset in the direction of the popover relative to the reference.
*/
function getArrowReferenceOffsetStyle(placement) {
const offset = POPOVER_ARROW_SVG_SIZE / 2 - ARROW_SPACING;
switch (getBasePlacement(placement)) {
case "top":
return { bottom: -offset };
case "left":
return { right: -offset };
case "bottom":
return { top: -offset };
default:
return { left: -offset };
}
}
export const PopoverArrow = ({ arrowProps: { ref, style }, placement }) => (
// data attribute allows popper.js to position the arrow
React.createElement("div", { "aria-hidden": true, className: Classes.POPOVER_ARROW, "data-popper-arrow": true, ref: ref, style: {
...style,
...getArrowReferenceOffsetStyle(placement),
} },
React.createElement("svg", { viewBox: `0 0 ${POPOVER_ARROW_SVG_SIZE} ${POPOVER_ARROW_SVG_SIZE}`, style: { transform: `rotate(${getArrowAngle(placement)}deg)` } },
React.createElement("path", { className: Classes.POPOVER_ARROW + "-border", d: SVG_SHADOW_PATH }),
React.createElement("path", { className: Classes.POPOVER_ARROW + "-fill", d: SVG_ARROW_PATH }))));
PopoverArrow.displayName = `${DISPLAYNAME_PREFIX}.PopoverArrow`;
//# sourceMappingURL=popoverArrow.js.map