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import { action, computed, IReactionDisposer, observable, reaction } from "mobx";
import { observer } from "mobx-react";
import { Doc, Field } from "../../../../fields/Doc";
import { Id } from "../../../../fields/FieldSymbols";
import { List } from "../../../../fields/List";
import { NumCast } from "../../../../fields/Types";
import { emptyFunction, setupMoveUpEvents, Utils } from '../../../../Utils';
import { CurrentUserUtils } from "../../../util/CurrentUserUtils";
import { LinkManager } from "../../../util/LinkManager";
import { ColorScheme } from "../../../util/SettingsManager";
import { SnappingManager } from "../../../util/SnappingManager";
import { DocumentView } from "../../nodes/DocumentView";
import "./CollectionFreeFormLinkView.scss";
import React = require("react");
export interface CollectionFreeFormLinkViewProps {
A: DocumentView;
B: DocumentView;
LinkDocs: Doc[];
}
@observer
export class CollectionFreeFormLinkView extends React.Component<CollectionFreeFormLinkViewProps> {
@observable _opacity: number = 0;
@observable _start = 0;
_anchorDisposer: IReactionDisposer | undefined;
_timeout: NodeJS.Timeout | undefined;
componentWillUnmount() { this._anchorDisposer?.(); }
@action timeout = action(() => (Date.now() < this._start++ + 1000) && (this._timeout = setTimeout(this.timeout, 25)));
componentDidMount() {
this._anchorDisposer = reaction(() => [this.props.A.props.ScreenToLocalTransform(), this.props.B.props.ScreenToLocalTransform()],
action(() => {
this._start = Date.now();
this._timeout && clearTimeout(this._timeout);
this._timeout = setTimeout(this.timeout, 25);
setTimeout(this.placeAnchors);
})
, { fireImmediately: true });
}
placeAnchors = () => {
const { A, B, LinkDocs } = this.props;
const linkDoc = LinkDocs[0];
if (SnappingManager.GetIsDragging() || !A.ContentDiv || !B.ContentDiv) return;
setTimeout(action(() => this._opacity = 0.75), 0); // since the render code depends on querying the Dom through getBoudndingClientRect, we need to delay triggering render()
setTimeout(action(() => (!LinkDocs.length || !linkDoc.linkDisplay) && (this._opacity = 0.05)), 750); // this will unhighlight the link line.
const acont = A.ContentDiv.getElementsByClassName("linkAnchorBox-cont");
const bcont = B.ContentDiv.getElementsByClassName("linkAnchorBox-cont");
const adiv = acont.length ? acont[0] : A.ContentDiv;
const bdiv = bcont.length ? bcont[0] : B.ContentDiv;
const a = adiv.getBoundingClientRect();
const b = bdiv.getBoundingClientRect();
const { left: aleft, top: atop, width: awidth, height: aheight } = adiv.parentElement!.getBoundingClientRect();
const { left: bleft, top: btop, width: bwidth, height: bheight } = bdiv.parentElement!.getBoundingClientRect();
const apt = Utils.closestPtBetweenRectangles(aleft, atop, awidth, aheight, bleft, btop, bwidth, bheight, a.left + a.width / 2, a.top + a.height / 2);
const bpt = Utils.closestPtBetweenRectangles(bleft, btop, bwidth, bheight, aleft, atop, awidth, aheight, apt.point.x, apt.point.y);
// really hacky stuff to make the LinkAnchorBox display where we want it to:
// if there's an element in the DOM with a classname containing a link anchor's id,
// then that DOM element is a hyperlink source for the current anchor and we want to place our link box at it's top right
// otherwise, we just use the computed nearest point on the document boundary to the target Document
const targetAhyperlink = Array.from(window.document.getElementsByClassName((linkDoc.anchor1 as Doc)[Id])).lastElement();
const targetBhyperlink = Array.from(window.document.getElementsByClassName((linkDoc.anchor2 as Doc)[Id])).lastElement();
if ((!targetAhyperlink && !a.width) || (!targetBhyperlink && !b.width)) return;
if (!targetAhyperlink) {
if (linkDoc.linkAutoMove) {
linkDoc.anchor1_x = (apt.point.x - aleft) / awidth * 100;
linkDoc.anchor1_y = (apt.point.y - atop) / aheight * 100;
}
} else {
const m = targetAhyperlink.getBoundingClientRect();
const mp = A.props.ScreenToLocalTransform().transformPoint(m.right, m.top + 5);
const mpx = mp[0] / A.props.PanelWidth();
const mpy = mp[1] / A.props.PanelHeight();
if (mpx >= 0 && mpx <= 1) linkDoc.anchor1_x = mpx * 100;
if (mpy >= 0 && mpy <= 1) linkDoc.anchor1_y = mpy * 100;
}
if (!targetBhyperlink) {
if (linkDoc.linkAutoMove) {
linkDoc.anchor2_x = (bpt.point.x - bleft) / bwidth * 100;
linkDoc.anchor2_y = (bpt.point.y - btop) / bheight * 100;
}
} else {
const m = targetBhyperlink.getBoundingClientRect();
const mp = B.props.ScreenToLocalTransform().transformPoint(m.right, m.top + 5);
const mpx = mp[0] / B.props.PanelWidth();
const mpy = mp[1] / B.props.PanelHeight();
if (mpx >= 0 && mpx <= 1) linkDoc.anchor2_x = mpx * 100;
if (mpy >= 0 && mpy <= 1) linkDoc.anchor2_y = mpy * 100;
}
}
pointerDown = (e: React.PointerEvent) => {
setupMoveUpEvents(this, e, (e, down, delta) => {
this.props.LinkDocs[0].linkOffsetX = NumCast(this.props.LinkDocs[0].linkOffsetX) + delta[0];
this.props.LinkDocs[0].linkOffsetY = NumCast(this.props.LinkDocs[0].linkOffsetY) + delta[1];
return false;
}, emptyFunction, () => {
// OverlayView.Instance.addElement(
// <LinkEditor sourceDoc={this.props.A.props.Document} linkDoc={this.props.LinkDocs[0]}
// showLinks={action(() => { })}
// />, { x: 300, y: 300 });
});
}
visibleY = (el: any) => {
let rect = el.getBoundingClientRect();
const top = rect.top, height = rect.height;
var el = el.parentNode;
while (el && el !== document.body) {
rect = el.getBoundingClientRect?.();
if (rect?.width) {
if (top <= rect.bottom === false && getComputedStyle(el).overflow === "hidden") return rect.bottom;
// Check if the element is out of view due to a container scrolling
if ((top + height) <= rect.top && getComputedStyle(el).overflow === "hidden") return rect.top;
}
el = el.parentNode;
}
// Check its within the document viewport
return top; //top <= document.documentElement.clientHeight && getComputedStyle(document.documentElement).overflow === "hidden";
}
visibleX = (el: any) => {
let rect = el.getBoundingClientRect();
const left = rect.left, width = rect.width;
var el = el.parentNode;
while (el && el !== document.body) {
rect = el?.getBoundingClientRect();
if (rect?.width) {
if (left <= rect.right === false && getComputedStyle(el).overflow === "hidden") return rect.right;
// Check if the element is out of view due to a container scrolling
if ((left + width) <= rect.left && getComputedStyle(el).overflow === "hidden") return rect.left;
}
el = el.parentNode;
}
// Check its within the document viewport
return left; //top <= document.documentElement.clientHeight && getComputedStyle(document.documentElement).overflow === "hidden";
}
@computed.struct get renderData() {
this._start; SnappingManager.GetIsDragging();
const { A, B, LinkDocs } = this.props;
if (!A.ContentDiv || !B.ContentDiv || !LinkDocs.length) return undefined;
const acont = A.ContentDiv.getElementsByClassName("linkAnchorBox-cont");
const bcont = B.ContentDiv.getElementsByClassName("linkAnchorBox-cont");
const adiv = acont.length ? acont[0] : A.ContentDiv;
const bdiv = bcont.length ? bcont[0] : B.ContentDiv;
for (let apdiv = adiv; apdiv; apdiv = apdiv.parentElement as any) if ((apdiv as any).hidden) return;
for (let bpdiv = bdiv; bpdiv; bpdiv = bpdiv.parentElement as any) if ((bpdiv as any).hidden) return;
const a = adiv.getBoundingClientRect();
const b = bdiv.getBoundingClientRect();
const atop = this.visibleY(adiv);
const btop = this.visibleY(bdiv);
if (!a.width || !b.width) return undefined;
const atop2 = this.visibleY(adiv);
const btop2 = this.visibleY(bdiv);
const aleft = this.visibleX(adiv);
const bleft = this.visibleX(bdiv);
const clipped = aleft !== a.left || atop !== a.top || bleft !== b.left || btop !== b.top;
const apt = Utils.closestPtBetweenRectangles(aleft, atop, a.width, a.height, bleft, btop, b.width, b.height, a.left + a.width / 2, a.top + a.height / 2);
const bpt = Utils.closestPtBetweenRectangles(bleft, btop, b.width, b.height, aleft, atop, a.width, a.height, apt.point.x, apt.point.y);
const pt1 = [apt.point.x, apt.point.y];
const pt2 = [bpt.point.x, bpt.point.y];
const pt1vec = [pt1[0] - (aleft + a.width / 2), pt1[1] - (atop + a.height / 2)];
const pt2vec = [pt2[0] - (bleft + b.width / 2), pt2[1] - (btop + b.height / 2)];
const pt1len = Math.sqrt((pt1vec[0] * pt1vec[0]) + (pt1vec[1] * pt1vec[1]));
const pt2len = Math.sqrt((pt2vec[0] * pt2vec[0]) + (pt2vec[1] * pt2vec[1]));
const ptlen = Math.sqrt((pt1[0] - pt2[0]) * (pt1[0] - pt2[0]) + (pt1[1] - pt2[1]) * (pt1[1] - pt2[1])) / 2;
const pt1norm = clipped ? [0, 0] : [pt1vec[0] / pt1len * ptlen, pt1vec[1] / pt1len * ptlen];
const pt2norm = clipped ? [0, 0] : [pt2vec[0] / pt2len * ptlen, pt2vec[1] / pt2len * ptlen];
const aActive = A.isSelected() || Doc.IsBrushed(A.rootDoc);
const bActive = B.isSelected() || Doc.IsBrushed(B.rootDoc);
const textX = (Math.min(pt1[0], pt2[0]) + Math.max(pt1[0], pt2[0])) / 2 + NumCast(LinkDocs[0].linkOffsetX);
const textY = (pt1[1] + pt2[1]) / 2 + NumCast(LinkDocs[0].linkOffsetY);
return { a, b, pt1norm, pt2norm, aActive, bActive, textX, textY, pt1, pt2 };
}
render() {
if (!this.renderData) return (null);
const { a, b, pt1norm, pt2norm, aActive, bActive, textX, textY, pt1, pt2 } = this.renderData;
LinkManager.currentLink = this.props.LinkDocs[0];
const linkRelationship = Field.toString(LinkManager.currentLink?.linkRelationship as any as Field); //get string representing relationship
const linkRelationshipList = Doc.UserDoc().linkRelationshipList as List<string>;
const linkColorList = Doc.UserDoc().linkColorList as List<string>;
const linkRelationshipSizes = Doc.UserDoc().linkRelationshipSizes as List<number>;
const currRelationshipIndex = linkRelationshipList.indexOf(linkRelationship);
const linkSize = currRelationshipIndex === -1 || currRelationshipIndex >= linkRelationshipSizes.length ? -1 : linkRelationshipSizes[currRelationshipIndex];
//access stroke color using index of the relationship in the color list (default black)
const stroke = currRelationshipIndex === -1 || currRelationshipIndex >= linkColorList.length ? "black" : linkColorList[currRelationshipIndex];
//calculate stroke width/thickness based on the relative importance of the relationshipship (i.e. how many links the relationship has)
//thickness varies linearly from 3px to 12px for increasing link count
const strokeWidth = linkSize === -1 ? "3px" : Math.floor(2 + 10 * (linkSize / Math.max(...linkRelationshipSizes))) + "px";
return !a.width || !b.width || ((!this.props.LinkDocs[0].linkDisplay) && !aActive && !bActive) ? (null) : (<>
<path className="collectionfreeformlinkview-linkLine" style={{ opacity: this._opacity, /*strokeDasharray: "2 2",*/ stroke, strokeWidth }}
d={`M ${pt1[0]} ${pt1[1]} C ${pt1[0] + pt1norm[0]} ${pt1[1] + pt1norm[1]}, ${pt2[0] + pt2norm[0]} ${pt2[1] + pt2norm[1]}, ${pt2[0]} ${pt2[1]}`} />
{textX === undefined ? (null) : <text className="collectionfreeformlinkview-linkText" x={textX} y={textY} onPointerDown={this.pointerDown} >
{Field.toString(this.props.LinkDocs[0].description as any as Field)}
</text>}
</>);
}
}
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