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Copy pathnodeWidthHeight.ts
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Copy pathnodeWidthHeight.ts
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321 lines (281 loc) · 9.52 KB
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import { AltSceneNode } from "../altNodes/altMixins";
export const magicMargin = 32;
type SizeResult = {
readonly width: responsive | number | null;
readonly height: responsive | number | null;
};
export const nodeWidthHeight = (
node: AltSceneNode,
allowRelative: boolean
): SizeResult => {
/// WIDTH AND HEIGHT
// if parent is a page, width can't get past w-64, therefore let it be free
// if (node.parent?.type === "PAGE" && node.width > 256) {
// return "";
// }
if (node.layoutAlign === "STRETCH" && node.layoutGrow === 1) {
return {
width: "full",
height: "full",
};
}
const [nodeWidth, nodeHeight] = getNodeSizeWithStrokes(node);
let propWidth: responsive | number | null = nodeWidth;
let propHeight: responsive | number | null = nodeHeight;
if (node.parent && "layoutMode" in node.parent) {
// Stretch means the opposite direction
if (node.layoutAlign === "STRETCH") {
switch (node.parent.layoutMode) {
case "HORIZONTAL":
propHeight = "full";
break;
case "VERTICAL":
propWidth = "full";
break;
}
}
// Grow means the same direction
if (node.layoutGrow === 1) {
if (node.parent.layoutMode === "HORIZONTAL") {
propWidth = "full";
} else {
propHeight = "full";
}
}
}
// avoid relative width when parent is relative (therefore, child is probably absolute, which doesn't work nice)
// ignore for root layer
// todo should this be kept this way? The issue is w-full which doesn't work well with absolute position.
if (allowRelative && node.parent?.isRelative !== true) {
// don't calculate again if it was already calculated
if (propWidth !== "full") {
const rW = calculateResponsiveWH(node, nodeWidth, "x");
if (rW) {
propWidth = rW;
}
}
if (propHeight !== "full") {
const rH = calculateResponsiveWH(node, nodeHeight, "y");
if (rH && node.parent) {
propHeight = rH;
}
}
}
// when any child has a relative width and parent is HORIZONTAL,
// parent must have a defined width, which wouldn't otherwise.
// todo check if the performance impact of this is worth it.
// const hasRelativeChildW =
// allowRelative &&
// "children" in node &&
// node.children.find((d) =>
// calculateResponsiveWH(d, getNodeSizeWithStrokes(d)[0], "x")
// ) !== undefined;
// when the child has the same size as the parent, don't set the size of the parent (twice)
if ("children" in node && node.children && node.children.length === 1) {
const child = node.children[0];
// detect if Frame's width is same as Child when Frame has Padding.
let hPadding = 0;
let vPadding = 0;
if ("layoutMode" in node) {
hPadding = node.paddingLeft + node.paddingRight;
vPadding = node.paddingTop + node.paddingBottom;
}
// set them independently, in case w is equal but h isn't
if (child.width === nodeWidth - hPadding) {
// propWidth = null;
}
if (child.height === nodeHeight - vPadding) {
// propHeight = null;
}
}
if ("layoutMode" in node) {
if (
(node.layoutMode === "HORIZONTAL" &&
node.counterAxisSizingMode === "AUTO") ||
(node.layoutMode === "VERTICAL" && node.primaryAxisSizingMode === "AUTO")
) {
propHeight = null;
}
if (
(node.layoutMode === "VERTICAL" &&
node.counterAxisSizingMode === "AUTO") ||
(node.layoutMode === "HORIZONTAL" &&
node.primaryAxisSizingMode === "AUTO")
) {
propWidth = null;
}
}
// On Tailwind, do not let the size be larger than 384.
if (allowRelative) {
if (
(node.type !== "RECTANGLE" && nodeHeight > 384) ||
childLargerThanMaxSize(node, "y")
) {
propHeight = null;
} else if (
(node.type !== "RECTANGLE" && nodeWidth > 384) ||
childLargerThanMaxSize(node, "x")
) {
propWidth = null;
}
}
if ("layoutMode" in node && node.layoutMode !== "NONE") {
// there is an edge case: frame with no children, layoutMode !== NONE and counterAxis = AUTO, but:
// in [altConversions] it is already solved: Frame without children becomes a Rectangle.
switch (node.layoutMode) {
case "HORIZONTAL":
return {
width: node.primaryAxisSizingMode === "FIXED" ? propWidth : null,
height: node.counterAxisSizingMode === "FIXED" ? propHeight : null,
};
case "VERTICAL":
return {
width: node.counterAxisSizingMode === "FIXED" ? propWidth : null,
height: node.primaryAxisSizingMode === "FIXED" ? propHeight : null,
};
}
} else {
return {
width: propWidth,
height: propHeight,
};
}
};
// makes the view size bigger when there is a stroke
const getNodeSizeWithStrokes = (node: AltSceneNode): Array<number> => {
let nodeHeight = node.height;
let nodeWidth = node.width;
// tailwind doesn't support OUTSIDE or CENTER, only INSIDE.
// Therefore, to give the same feeling, the height and width will be slighly increased.
// node.strokes.lenght is necessary because [strokeWeight] can exist even without strokes.
if ("strokes" in node && node.strokes && node.strokes.length) {
if (node.strokeAlign === "OUTSIDE") {
nodeHeight += node.strokeWeight * 2;
nodeWidth += node.strokeWeight * 2;
} else if (node.strokeAlign === "CENTER") {
nodeHeight += node.strokeWeight;
nodeWidth += node.strokeWeight;
}
}
if ("children" in node) {
// if any children has an OUTSIDE or CENTER stroke and, with that stroke,
// the child gets a size bigger than parent, adjust parent to be larger
node.children.forEach((d) => {
if ("strokeWeight" in d && d.strokes?.length > 0) {
if (d.strokeAlign === "OUTSIDE") {
if (nodeWidth < d.width + d.strokeWeight * 2) {
nodeWidth += d.strokeWeight * 2;
}
if (nodeHeight < d.height + d.strokeWeight * 2) {
nodeHeight += d.strokeWeight * 2;
}
} else if (d.strokeAlign === "CENTER") {
if (nodeWidth < d.width + d.strokeWeight) {
nodeWidth += d.strokeWeight;
}
if (nodeHeight < d.height + d.strokeWeight) {
nodeHeight += d.strokeWeight;
}
}
}
});
}
return [nodeWidth, nodeHeight];
};
const childLargerThanMaxSize = (node: AltSceneNode, axis: "x" | "y") => {
if ("children" in node && node.children.length > 0) {
const widthHeight: "width" | "height" = axis === "x" ? "width" : "height";
const lastChild = node.children[node.children.length - 1];
const maxLen =
lastChild[axis] + lastChild[widthHeight] - node.children[0][axis];
return maxLen > 384;
}
return false;
};
type responsive =
| ""
| "full"
| "1/2"
| "1/3"
| "2/3"
| "1/4"
| "3/4"
| "1/5"
| "1/6"
| "5/6";
const calculateResponsiveWH = (
node: AltSceneNode,
nodeWidthHeight: number,
axis: "x" | "y"
): responsive => {
let returnValue: responsive = "";
if (nodeWidthHeight > 384 || childLargerThanMaxSize(node, axis)) {
returnValue = "full";
}
if (!node.parent) {
return returnValue;
}
let parentWidthHeight;
if ("layoutMode" in node.parent && node.parent.layoutMode !== "NONE") {
if (axis === "x") {
// subtract padding from the layout width, so it can be full when compared with parent.
parentWidthHeight =
node.parent.width - node.parent.paddingLeft - node.parent.paddingRight;
} else {
// subtract padding from the layout height, so it can be full when compared with parent.
parentWidthHeight =
node.parent.height - node.parent.paddingTop - node.parent.paddingBottom;
}
} else {
parentWidthHeight = axis === "x" ? node.parent.width : node.parent.height;
}
// 0.01 of tolerance is enough for 5% of diff, i.e.: 804 / 400
const dividedWidth = nodeWidthHeight / parentWidthHeight;
const calculateResp = (div: number, str: responsive) => {
if (Math.abs(dividedWidth - div) < 0.01) {
returnValue = str;
return true;
}
return false;
};
// they will try to set the value, and if false keep calculating
const checkList: Array<[number, responsive]> = [
[1, "full"],
[1 / 2, "1/2"],
[1 / 3, "1/3"],
[2 / 3, "2/3"],
[1 / 4, "1/4"],
[3 / 4, "3/4"],
[1 / 5, "1/5"],
[1 / 6, "1/6"],
[5 / 6, "5/6"],
];
// exit the for when result is found.
let resultFound = false;
for (let i = 0; i < checkList.length && !resultFound; i++) {
const [div, resp] = checkList[i];
resultFound = calculateResp(div, resp);
}
// todo this was commented because it is almost never used. Should it be uncommented?
// if (!resultFound && isWidthFull(node, nodeWidth, parentWidth)) {
// propWidth = "full";
// }
return returnValue;
};
// set the width to max if the view is near the corner
// export const isWidthFull = (
// node: AltSceneNode,
// nodeWidth: number,
// parentWidth: number
// ): boolean => {
// // check if initial and final positions are within a magic number (currently 32)
// // this will only be reached when parent is FRAME, so node.parent.x is always 0.
// const betweenValueMargins =
// node.x <= magicMargin && parentWidth - (node.x + nodeWidth) <= magicMargin;
// // check if total width is at least 80% of the parent. This number is also a magic number and has worked fine so far.
// const betweenPercentMargins = nodeWidth / parentWidth >= 0.8;
// if (betweenValueMargins && betweenPercentMargins) {
// return true;
// }
// return false;
// };
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