molstar/lib/commonjs/mol-plugin/animation-loop.js

A comprehensive macromolecular library.

"use strict";
/**
 * Copyright (c) 2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
 *
 * @author David Sehnal <david.sehnal@gmail.com>
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.PluginAnimationLoop = void 0;
var tslib_1 = require("tslib");
var now_1 = require("../mol-util/now");
var PluginAnimationLoop = /** @class */ (function () {
    function PluginAnimationLoop(plugin) {
        var _this = this;
        this.plugin = plugin;
        this.currentFrame = void 0;
        this._isAnimating = false;
        this.frame = function () {
            _this.tick((0, now_1.now)());
            if (_this._isAnimating) {
                _this.currentFrame = requestAnimationFrame(_this.frame);
            }
        };
    }
    Object.defineProperty(PluginAnimationLoop.prototype, "isAnimating", {
        get: function () {
            return this._isAnimating;
        },
        enumerable: false,
        configurable: true
    });
    PluginAnimationLoop.prototype.tick = function (t, options) {
        var _a;
        return (0, tslib_1.__awaiter)(this, void 0, void 0, function () {
            return (0, tslib_1.__generator)(this, function (_b) {
                switch (_b.label) {
                    case 0: return [4 /*yield*/, this.plugin.managers.animation.tick(t, options === null || options === void 0 ? void 0 : options.isSynchronous)];
                    case 1:
                        _b.sent();
                        (_a = this.plugin.canvas3d) === null || _a === void 0 ? void 0 : _a.tick(t, options);
                        return [2 /*return*/];
                }
            });
        });
    };
    PluginAnimationLoop.prototype.resetTime = function (t) {
        var _a;
        if (t === void 0) { t = (0, now_1.now)(); }
        (_a = this.plugin.canvas3d) === null || _a === void 0 ? void 0 : _a.resetTime(t);
    };
    PluginAnimationLoop.prototype.start = function (options) {
        var _a;
        (_a = this.plugin.canvas3d) === null || _a === void 0 ? void 0 : _a.resume();
        this._isAnimating = true;
        this.resetTime();
        // TODO: should immediate be the default mode?
        if (options === null || options === void 0 ? void 0 : options.immediate)
            this.frame();
        else
            this.currentFrame = requestAnimationFrame(this.frame);
    };
    PluginAnimationLoop.prototype.stop = function (options) {
        var _a;
        this._isAnimating = false;
        if (this.currentFrame !== void 0) {
            cancelAnimationFrame(this.currentFrame);
            this.currentFrame = void 0;
        }
        if (options === null || options === void 0 ? void 0 : options.noDraw) {
            (_a = this.plugin.canvas3d) === null || _a === void 0 ? void 0 : _a.pause(options === null || options === void 0 ? void 0 : options.noDraw);
        }
    };
    return PluginAnimationLoop;
}());
exports.PluginAnimationLoop = PluginAnimationLoop;
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