Files
blockly/core/serialization/workspaces.js
Beka Westberg e2eaebec47 fix: convert the Workspace class to an ES6 class (#5977)
* fix: run conversion script on workspace

* fix: cleanup from conversion script

* fix: make debug build happy

* fix: tests

* fix: format

* fix: format
2022-03-16 13:22:03 -07:00

104 lines
3.2 KiB
JavaScript

/**
* @license
* Copyright 2021 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview Contains top-level functions for serializing workspaces to
* plain JavaScript objects.
*/
'use strict';
/**
* Contains top-level functions for serializing workspaces to plain JavaScript
* objects.
* @namespace Blockly.serialization.workspaces
*/
goog.module('Blockly.serialization.workspaces');
const dom = goog.require('Blockly.utils.dom');
const eventUtils = goog.require('Blockly.Events.utils');
const registry = goog.require('Blockly.registry');
// eslint-disable-next-line no-unused-vars
const {Workspace} = goog.require('Blockly.Workspace');
const {WorkspaceSvg} = goog.require('Blockly.WorkspaceSvg');
/**
* Returns the state of the workspace as a plain JavaScript object.
* @param {!Workspace} workspace The workspace to serialize.
* @return {!Object<string, *>} The serialized state of the workspace.
* @alias Blockly.serialization.workspaces.save
*/
const save = function(workspace) {
const state = Object.create(null);
const serializerMap = registry.getAllItems(registry.Type.SERIALIZER, true);
for (const key in serializerMap) {
const save = serializerMap[key].save(workspace);
if (save) {
state[key] = save;
}
}
return state;
};
exports.save = save;
/**
* Loads the variable represented by the given state into the given workspace.
* @param {!Object<string, *>} state The state of the workspace to deserialize
* into the workspace.
* @param {!Workspace} workspace The workspace to add the new state to.
* @param {{recordUndo: (boolean|undefined)}=} param1
* recordUndo: If true, events triggered by this function will be undo-able
* by the user. False by default.
* @alias Blockly.serialization.workspaces.load
*/
const load = function(state, workspace, {recordUndo = false} = {}) {
const serializerMap = registry.getAllItems(registry.Type.SERIALIZER, true);
if (!serializerMap) {
return;
}
const deserializers = Object.entries(serializerMap)
.sort((a, b) => b[1].priority - a[1].priority);
const prevRecordUndo = eventUtils.getRecordUndo();
eventUtils.setRecordUndo(recordUndo);
const existingGroup = eventUtils.getGroup();
if (!existingGroup) {
eventUtils.setGroup(true);
}
dom.startTextWidthCache();
if (workspace instanceof WorkspaceSvg) {
workspace.setResizesEnabled(false);
}
// We want to trigger clearing in reverse priority order so plugins don't end
// up missing dependencies.
for (const [, deserializer] of deserializers.reverse()) {
deserializer.clear(workspace);
}
// reverse() is destructive, so we have to re-reverse to correct the order.
for (let [name, deserializer] of deserializers.reverse()) {
name = /** @type {string} */ (name);
const pluginState = state[name];
if (pluginState) {
deserializer.load(state[name], workspace);
}
}
if (workspace instanceof WorkspaceSvg) {
workspace.setResizesEnabled(true);
}
dom.stopTextWidthCache();
eventUtils.fire(new (eventUtils.get(eventUtils.FINISHED_LOADING))(workspace));
eventUtils.setGroup(existingGroup);
eventUtils.setRecordUndo(prevRecordUndo);
};
exports.load = load;