Babylon.js/src/Loading/babylon.sceneLoader.js

var BABYLON;
(function (BABYLON) {
    var SceneLoader = (function () {
        function SceneLoader() {
        }
        Object.defineProperty(SceneLoader, "NO_LOGGING", {
            get: function () {
                return 0;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(SceneLoader, "MINIMAL_LOGGING", {
            get: function () {
                return 1;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(SceneLoader, "SUMMARY_LOGGING", {
            get: function () {
                return 2;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(SceneLoader, "DETAILED_LOGGING", {
            get: function () {
                return 3;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(SceneLoader, "ForceFullSceneLoadingForIncremental", {
            get: function () {
                return SceneLoader._ForceFullSceneLoadingForIncremental;
            },
            set: function (value) {
                SceneLoader._ForceFullSceneLoadingForIncremental = value;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(SceneLoader, "ShowLoadingScreen", {
            get: function () {
                return SceneLoader._ShowLoadingScreen;
            },
            set: function (value) {
                SceneLoader._ShowLoadingScreen = value;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(SceneLoader, "loggingLevel", {
            get: function () {
                return SceneLoader._loggingLevel;
            },
            set: function (value) {
                SceneLoader._loggingLevel = value;
            },
            enumerable: true,
            configurable: true
        });
        SceneLoader._getDefaultPlugin = function () {
            return SceneLoader._registeredPlugins[".babylon"];
        };
        SceneLoader._getPluginForExtension = function (extension) {
            var registeredPlugin = SceneLoader._registeredPlugins[extension];
            if (registeredPlugin) {
                return registeredPlugin;
            }
            return SceneLoader._getDefaultPlugin();
        };
        SceneLoader._getPluginForFilename = function (sceneFilename) {
            if (sceneFilename.name) {
                sceneFilename = sceneFilename.name;
            }
            var dotPosition = sceneFilename.lastIndexOf(".");
            var queryStringPosition = sceneFilename.indexOf("?");
            if (queryStringPosition === -1) {
                queryStringPosition = sceneFilename.length;
            }
            var extension = sceneFilename.substring(dotPosition, queryStringPosition).toLowerCase();
            return SceneLoader._getPluginForExtension(extension);
        };
        // use babylon file loader directly if sceneFilename is prefixed with "data:"
        SceneLoader._getDirectLoad = function (sceneFilename) {
            if (sceneFilename.substr && sceneFilename.substr(0, 5) === "data:") {
                return sceneFilename.substr(5);
            }
            return null;
        };
        // Public functions
        SceneLoader.GetPluginForExtension = function (extension) {
            return SceneLoader._getPluginForExtension(extension).plugin;
        };
        SceneLoader.RegisterPlugin = function (plugin) {
            if (typeof plugin.extensions === "string") {
                var extension = plugin.extensions;
                SceneLoader._registeredPlugins[extension.toLowerCase()] = {
                    plugin: plugin,
                    isBinary: false
                };
            }
            else {
                var extensions = plugin.extensions;
                Object.keys(extensions).forEach(function (extension) {
                    SceneLoader._registeredPlugins[extension.toLowerCase()] = {
                        plugin: plugin,
                        isBinary: extensions[extension].isBinary
                    };
                });
            }
        };
        SceneLoader.ImportMesh = function (meshesNames, rootUrl, sceneFilename, scene, onsuccess, progressCallBack, onerror) {
            if (sceneFilename.substr && sceneFilename.substr(0, 1) === "/") {
                BABYLON.Tools.Error("Wrong sceneFilename parameter");
                return;
            }
            if (sceneFilename.substr && sceneFilename.substr(0, 1) === "/") {
                BABYLON.Tools.Error("Wrong sceneFilename parameter");
                return;
            }
            var directLoad = SceneLoader._getDirectLoad(sceneFilename);
            var loadingToken = {};
            scene._addPendingData(loadingToken);
            var manifestChecked = function (success) {
                scene.database = database;
                var registeredPlugin = directLoad ? SceneLoader._getDefaultPlugin() : SceneLoader._getPluginForFilename(sceneFilename);
                var plugin = registeredPlugin.plugin;
                var useArrayBuffer = registeredPlugin.isBinary;
                var importMeshFromData = function (data) {
                    var meshes = [];
                    var particleSystems = [];
                    var skeletons = [];
                    try {
                        if (plugin.importMesh) {
                            var syncedPlugin = plugin;
                            if (!syncedPlugin.importMesh(meshesNames, scene, data, rootUrl, meshes, particleSystems, skeletons)) {
                                if (onerror) {
                                    onerror(scene, 'Unable to import meshes from ' + rootUrl + sceneFilename);
                                }
                                scene._removePendingData(loadingToken);
                                return;
                            }
                            if (onsuccess) {
                                scene.importedMeshesFiles.push(rootUrl + sceneFilename);
                                onsuccess(meshes, particleSystems, skeletons);
                                scene._removePendingData(loadingToken);
                            }
                        }
                        else {
                            var asyncedPlugin = plugin;
                            asyncedPlugin.importMeshAsync(meshesNames, scene, data, rootUrl, function (meshes, particleSystems, skeletons) {
                                if (onsuccess) {
                                    scene.importedMeshesFiles.push(rootUrl + sceneFilename);
                                    onsuccess(meshes, particleSystems, skeletons);
                                    scene._removePendingData(loadingToken);
                                }
                            }, function () {
                                if (onerror) {
                                    onerror(scene, 'Unable to import meshes from ' + rootUrl + sceneFilename);
                                }
                                scene._removePendingData(loadingToken);
                            });
                        }
                    }
                    catch (e) {
                        if (onerror) {
                            onerror(scene, 'Unable to import meshes from ' + rootUrl + sceneFilename, e);
                        }
                        scene._removePendingData(loadingToken);
                    }
                };
                if (directLoad) {
                    importMeshFromData(directLoad);
                    return;
                }
                BABYLON.Tools.LoadFile(rootUrl + sceneFilename, function (data) {
                    importMeshFromData(data);
                }, progressCallBack, database, useArrayBuffer);
            };
            if (scene.getEngine().enableOfflineSupport && !directLoad) {
                // Checking if a manifest file has been set for this scene and if offline mode has been requested
                var database = new BABYLON.Database(rootUrl + sceneFilename, manifestChecked);
            }
            else {
                // If the scene is a data stream or offline support is not enabled, it's a direct load
                manifestChecked(true);
            }
        };
        /**
        * Load a scene
        * @param rootUrl a string that defines the root url for scene and resources
        * @param sceneFilename a string that defines the name of the scene file. can start with "data:" following by the stringified version of the scene
        * @param engine is the instance of BABYLON.Engine to use to create the scene
        */
        SceneLoader.Load = function (rootUrl, sceneFilename, engine, onsuccess, progressCallBack, onerror) {
            SceneLoader.Append(rootUrl, sceneFilename, new BABYLON.Scene(engine), onsuccess, progressCallBack, onerror);
        };
        /**
        * Append a scene
        * @param rootUrl a string that defines the root url for scene and resources
        * @param sceneFilename a string that defines the name of the scene file. can start with "data:" following by the stringified version of the scene
        * @param scene is the instance of BABYLON.Scene to append to
        */
        SceneLoader.Append = function (rootUrl, sceneFilename, scene, onsuccess, progressCallBack, onerror) {
            if (sceneFilename.substr && sceneFilename.substr(0, 1) === "/") {
                BABYLON.Tools.Error("Wrong sceneFilename parameter");
                return;
            }
            var directLoad = SceneLoader._getDirectLoad(sceneFilename);
            var registeredPlugin = directLoad ? SceneLoader._getDefaultPlugin() : SceneLoader._getPluginForFilename(sceneFilename);
            var plugin = registeredPlugin.plugin;
            var useArrayBuffer = registeredPlugin.isBinary;
            var database;
            var loadingToken = {};
            scene._addPendingData(loadingToken);
            if (SceneLoader.ShowLoadingScreen) {
                scene.getEngine().displayLoadingUI();
            }
            var loadSceneFromData = function (data) {
                scene.database = database;
                if (plugin.load) {
                    var syncedPlugin = plugin;
                    if (!syncedPlugin.load(scene, data, rootUrl)) {
                        if (onerror) {
                            onerror(scene);
                        }
                        scene._removePendingData(loadingToken);
                        scene.getEngine().hideLoadingUI();
                        return;
                    }
                    if (onsuccess) {
                        onsuccess(scene);
                    }
                    scene._removePendingData(loadingToken);
                }
                else {
                    var asyncedPlugin = plugin;
                    asyncedPlugin.loadAsync(scene, data, rootUrl, function () {
                        if (onsuccess) {
                            onsuccess(scene);
                        }
                        scene._removePendingData(loadingToken);
                    }, function () {
                        if (onerror) {
                            onerror(scene);
                        }
                        scene._removePendingData(loadingToken);
                        scene.getEngine().hideLoadingUI();
                    });
                }
                if (SceneLoader.ShowLoadingScreen) {
                    scene.executeWhenReady(function () {
                        scene.getEngine().hideLoadingUI();
                    });
                }
            };
            var manifestChecked = function (success) {
                BABYLON.Tools.LoadFile(rootUrl + sceneFilename, loadSceneFromData, progressCallBack, database, useArrayBuffer);
            };
            if (directLoad) {
                loadSceneFromData(directLoad);
                return;
            }
            if (rootUrl.indexOf("file:") === -1) {
                if (scene.getEngine().enableOfflineSupport) {
                    // Checking if a manifest file has been set for this scene and if offline mode has been requested
                    database = new BABYLON.Database(rootUrl + sceneFilename, manifestChecked);
                }
                else {
                    manifestChecked(true);
                }
            }
            else {
                BABYLON.Tools.ReadFile(sceneFilename, loadSceneFromData, progressCallBack, useArrayBuffer);
            }
        };
        // Flags
        SceneLoader._ForceFullSceneLoadingForIncremental = false;
        SceneLoader._ShowLoadingScreen = true;
        SceneLoader._loggingLevel = SceneLoader.NO_LOGGING;
        // Members
        SceneLoader._registeredPlugins = {};
        return SceneLoader;
    }());
    BABYLON.SceneLoader = SceneLoader;
    ;
})(BABYLON || (BABYLON = {}));