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126 lines
2.6 KiB
JavaScript
126 lines
2.6 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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this.selection = (function () {
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let exports = {};
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class Selection {
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constructor(x1, y1, x2, y2) {
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this.x1 = x1;
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this.y1 = y1;
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this.x2 = x2;
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this.y2 = y2;
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}
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get top() {
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return Math.min(this.y1, this.y2);
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}
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set top(val) {
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if (this.y1 < this.y2) {
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this.y1 = val;
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} else {
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this.y2 = val;
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}
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}
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get bottom() {
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return Math.max(this.y1, this.y2);
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}
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set bottom(val) {
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if (this.y1 > this.y2) {
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this.y1 = val;
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} else {
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this.y2 = val;
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}
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}
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get left() {
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return Math.min(this.x1, this.x2);
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}
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set left(val) {
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if (this.x1 < this.x2) {
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this.x1 = val;
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} else {
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this.x2 = val;
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}
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}
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get right() {
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return Math.max(this.x1, this.x2);
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}
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set right(val) {
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if (this.x1 > this.x2) {
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this.x1 = val;
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} else {
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this.x2 = val;
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}
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}
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get width() {
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return Math.abs(this.x2 - this.x1);
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}
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get height() {
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return Math.abs(this.y2 - this.y1);
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}
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rect() {
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return {
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top: Math.floor(this.top),
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left: Math.floor(this.left),
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bottom: Math.floor(this.bottom),
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right: Math.floor(this.right),
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};
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}
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union(other) {
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return new Selection(
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Math.min(this.left, other.left),
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Math.min(this.top, other.top),
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Math.max(this.right, other.right),
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Math.max(this.bottom, other.bottom)
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);
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}
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/** Sort x1/x2 and y1/y2 so x1<x2, y1<y2 */
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sortCoords() {
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if (this.x1 > this.x2) {
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[this.x1, this.x2] = [this.x2, this.x1];
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}
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if (this.y1 > this.y2) {
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[this.y1, this.y2] = [this.y2, this.y1];
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}
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}
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clone() {
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return new Selection(this.x1, this.y1, this.x2, this.y2);
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}
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toJSON() {
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return {
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left: this.left,
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right: this.right,
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top: this.top,
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bottom: this.bottom,
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};
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}
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static getBoundingClientRect(el) {
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if (!el.getBoundingClientRect) {
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// Typically the <html> element or somesuch
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return null;
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}
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const rect = el.getBoundingClientRect();
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if (!rect) {
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return null;
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}
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return new Selection(rect.left, rect.top, rect.right, rect.bottom);
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}
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}
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if (typeof exports !== "undefined") {
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exports.Selection = Selection;
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}
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return exports;
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})();
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null;
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