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/**
* Custom positioning reference element.
* @see https://floating-ui.com/docs/virtual-elements
*/
const sides = ['top', 'right', 'bottom', 'left'];
const alignments = ['start', 'end'];
const placements = /*#__PURE__*/sides.reduce((acc, side) => acc.concat(side, side + "-" + alignments[0], side + "-" + alignments[1]), []);
const min = Math.min;
const max = Math.max;
const round = Math.round;
const floor = Math.floor;
const createCoords = v => ({
x: v,
y: v
});
const oppositeSideMap = {
left: 'right',
right: 'left',
bottom: 'top',
top: 'bottom'
};
const oppositeAlignmentMap = {
start: 'end',
end: 'start'
};
function clamp(start, value, end) {
return max(start, min(value, end));
}
function evaluate(value, param) {
return typeof value === 'function' ? value(param) : value;
}
function getSide(placement) {
return placement.split('-')[0];
}
function getAlignment(placement) {
return placement.split('-')[1];
}
function getOppositeAxis(axis) {
return axis === 'x' ? 'y' : 'x';
}
function getAxisLength(axis) {
return axis === 'y' ? 'height' : 'width';
}
function getSideAxis(placement) {
return ['top', 'bottom'].includes(getSide(placement)) ? 'y' : 'x';
}
function getAlignmentAxis(placement) {
return getOppositeAxis(getSideAxis(placement));
}
function getAlignmentSides(placement, rects, rtl) {
if (rtl === void 0) {
rtl = false;
}
const alignment = getAlignment(placement);
const alignmentAxis = getAlignmentAxis(placement);
const length = getAxisLength(alignmentAxis);
let mainAlignmentSide = alignmentAxis === 'x' ? alignment === (rtl ? 'end' : 'start') ? 'right' : 'left' : alignment === 'start' ? 'bottom' : 'top';
if (rects.reference[length] > rects.floating[length]) {
mainAlignmentSide = getOppositePlacement(mainAlignmentSide);
}
return [mainAlignmentSide, getOppositePlacement(mainAlignmentSide)];
}
function getExpandedPlacements(placement) {
const oppositePlacement = getOppositePlacement(placement);
return [getOppositeAlignmentPlacement(placement), oppositePlacement, getOppositeAlignmentPlacement(oppositePlacement)];
}
function getOppositeAlignmentPlacement(placement) {
return placement.replace(/start|end/g, alignment => oppositeAlignmentMap[alignment]);
}
function getSideList(side, isStart, rtl) {
const lr = ['left', 'right'];
const rl = ['right', 'left'];
const tb = ['top', 'bottom'];
const bt = ['bottom', 'top'];
switch (side) {
case 'top':
case 'bottom':
if (rtl) return isStart ? rl : lr;
return isStart ? lr : rl;
case 'left':
case 'right':
return isStart ? tb : bt;
default:
return [];
}
}
function getOppositeAxisPlacements(placement, flipAlignment, direction, rtl) {
const alignment = getAlignment(placement);
let list = getSideList(getSide(placement), direction === 'start', rtl);
if (alignment) {
list = list.map(side => side + "-" + alignment);
if (flipAlignment) {
list = list.concat(list.map(getOppositeAlignmentPlacement));
}
}
return list;
}
function getOppositePlacement(placement) {
return placement.replace(/left|right|bottom|top/g, side => oppositeSideMap[side]);
}
function expandPaddingObject(padding) {
return {
top: 0,
right: 0,
bottom: 0,
left: 0,
...padding
};
}
function getPaddingObject(padding) {
return typeof padding !== 'number' ? expandPaddingObject(padding) : {
top: padding,
right: padding,
bottom: padding,
left: padding
};
}
function rectToClientRect(rect) {
return {
...rect,
top: rect.y,
left: rect.x,
right: rect.x + rect.width,
bottom: rect.y + rect.height
};
}
export { alignments, clamp, createCoords, evaluate, expandPaddingObject, floor, getAlignment, getAlignmentAxis, getAlignmentSides, getAxisLength, getExpandedPlacements, getOppositeAlignmentPlacement, getOppositeAxis, getOppositeAxisPlacements, getOppositePlacement, getPaddingObject, getSide, getSideAxis, max, min, placements, rectToClientRect, round, sides };
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