tldraw
Version:
A tiny little drawing editor.
62 lines (61 loc) • 2.1 kB
JavaScript
;
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 Dragging_exports = {};
__export(Dragging_exports, {
Dragging: () => Dragging
});
module.exports = __toCommonJS(Dragging_exports);
var import_editor = require("@tldraw/editor");
class Dragging extends import_editor.StateNode {
static id = "dragging";
initialCamera = new import_editor.Vec();
onEnter() {
this.initialCamera = import_editor.Vec.From(this.editor.getCamera());
this.update();
}
onPointerMove() {
this.update();
}
onPointerUp() {
this.complete();
}
onCancel() {
this.parent.transition("idle");
}
onComplete() {
this.complete();
}
update() {
const { initialCamera, editor } = this;
const { currentScreenPoint, originScreenPoint } = editor.inputs;
const delta = import_editor.Vec.Sub(currentScreenPoint, originScreenPoint).div(editor.getZoomLevel());
if (delta.len2() === 0) return;
editor.setCamera(initialCamera.clone().add(delta));
}
complete() {
const { editor } = this;
const { pointerVelocity } = editor.inputs;
const velocityAtPointerUp = Math.min(pointerVelocity.len(), 2);
if (velocityAtPointerUp > 0.1) {
this.editor.slideCamera({ speed: velocityAtPointerUp, direction: pointerVelocity });
}
this.parent.transition("idle");
}
}
//# sourceMappingURL=Dragging.js.map