tldraw
Version:
A tiny little drawing editor.
136 lines (135 loc) • 4.84 kB
JavaScript
"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var PointingArrowLabel_exports = {};
__export(PointingArrowLabel_exports, {
PointingArrowLabel: () => PointingArrowLabel
});
module.exports = __toCommonJS(PointingArrowLabel_exports);
var import_editor = require("@tldraw/editor");
var import_shared = require("../../../shapes/arrow/shared");
class PointingArrowLabel extends import_editor.StateNode {
static id = "pointing_arrow_label";
shapeId = "";
markId = "";
wasAlreadySelected = false;
didDrag = false;
didCtrlOnEnter = false;
info = {};
updateCursor() {
this.editor.setCursor({ type: "grabbing", rotation: 0 });
}
onEnter(info) {
const { shape } = info;
this.parent.setCurrentToolIdMask(info.onInteractionEnd);
this.info = info;
this.shapeId = shape.id;
this.didDrag = false;
this.didCtrlOnEnter = info.accelKey;
this.wasAlreadySelected = this.editor.getOnlySelectedShapeId() === shape.id;
this.updateCursor();
const geometry = this.editor.getShapeGeometry(shape);
const labelGeometry = geometry.children[1];
if (!labelGeometry) {
throw Error(`Expected to find an arrow label geometry for shape: ${shape.id}`);
}
const { currentPagePoint } = this.editor.inputs;
const pointInShapeSpace = this.editor.getPointInShapeSpace(shape, currentPagePoint);
this._labelDragOffset = import_editor.Vec.Sub(labelGeometry.center, pointInShapeSpace);
this.markId = this.editor.markHistoryStoppingPoint("label-drag start");
this.editor.setSelectedShapes([this.shapeId]);
}
onExit() {
this.parent.setCurrentToolIdMask(void 0);
this.editor.setCursor({ type: "default", rotation: 0 });
}
_labelDragOffset = new import_editor.Vec(0, 0);
onPointerMove() {
const { isDragging } = this.editor.inputs;
if (!isDragging) return;
if (this.didCtrlOnEnter) {
this.parent.transition("brushing", this.info);
return;
}
const shape = this.editor.getShape(this.shapeId);
if (!shape) return;
const info = (0, import_shared.getArrowInfo)(this.editor, shape);
const groupGeometry = this.editor.getShapeGeometry(shape);
const bodyGeometry = groupGeometry.children[0];
const pointInShapeSpace = this.editor.getPointInShapeSpace(
shape,
this.editor.inputs.currentPagePoint
);
const nearestPoint = bodyGeometry.nearestPoint(
import_editor.Vec.Add(pointInShapeSpace, this._labelDragOffset)
);
let nextLabelPosition;
if (info.isStraight) {
const lineLength = import_editor.Vec.Dist(info.start.point, info.end.point);
const segmentLength = import_editor.Vec.Dist(info.end.point, nearestPoint);
nextLabelPosition = 1 - segmentLength / lineLength;
} else {
const { _center, measure, angleEnd, angleStart } = groupGeometry.children[0];
nextLabelPosition = (0, import_editor.getPointInArcT)(measure, angleStart, angleEnd, _center.angle(nearestPoint));
}
if (isNaN(nextLabelPosition)) {
nextLabelPosition = 0.5;
}
this.didDrag = true;
this.editor.updateShape({
id: shape.id,
type: shape.type,
props: { labelPosition: nextLabelPosition }
});
}
onPointerUp() {
const shape = this.editor.getShape(this.shapeId);
if (!shape) return;
if (this.didDrag || !this.wasAlreadySelected) {
this.complete();
} else if (!this.editor.getIsReadonly()) {
this.editor.setEditingShape(shape.id);
this.editor.setCurrentTool("select.editing_shape");
}
}
onCancel() {
this.cancel();
}
onComplete() {
this.cancel();
}
onInterrupt() {
this.cancel();
}
complete() {
if (this.info.onInteractionEnd) {
this.editor.setCurrentTool(this.info.onInteractionEnd, {});
} else {
this.parent.transition("idle");
}
}
cancel() {
this.editor.bailToMark(this.markId);
if (this.info.onInteractionEnd) {
this.editor.setCurrentTool(this.info.onInteractionEnd, {});
} else {
this.parent.transition("idle");
}
}
}
//# sourceMappingURL=PointingArrowLabel.js.map