@stringsync/vexml
Version:
MusicXML to Vexflow
73 lines (72 loc) • 2.85 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.Scroller = void 0;
const spatial = __importStar(require("../spatial"));
const SCROLLER_HORIZONTAL_PADDING = 20;
const SCROLLER_VERTICAL_PADDING = 20;
class Scroller {
scrollContainer;
constructor(scrollContainer) {
this.scrollContainer = scrollContainer;
}
isFullyVisible(rect) {
const visibleRect = this.getVisibleRect();
return (rect.x >= visibleRect.x &&
rect.y >= visibleRect.y &&
rect.x + rect.w <= visibleRect.x + visibleRect.w &&
rect.y + rect.h <= visibleRect.y + visibleRect.h);
}
scrollTo(position, behavior = 'auto') {
if (!this.isAt(position)) {
this.scrollContainer.scrollTo({
top: position.y - SCROLLER_VERTICAL_PADDING,
left: position.x - SCROLLER_HORIZONTAL_PADDING,
behavior,
});
}
}
isAt(position) {
return this.scrollContainer.scrollLeft === position.x && this.scrollContainer.scrollTop === position.y;
}
getVisibleRect() {
const scrollLeft = this.scrollContainer.scrollLeft;
const scrollTop = this.scrollContainer.scrollTop;
const scrollWidth = this.scrollContainer.clientWidth;
const scrollHeight = this.scrollContainer.clientHeight;
return new spatial.Rect(scrollLeft, scrollTop, scrollWidth, scrollHeight);
}
}
exports.Scroller = Scroller;