kopia lustrzana https://github.com/backface/turtlestitch
1848 wiersze
57 KiB
JavaScript
1848 wiersze
57 KiB
JavaScript
/*
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store.js
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saving and loading Snap! projects
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written by Jens Mönig
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jens@moenig.org
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Copyright (C) 2014 by Jens Mönig
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This file is part of Snap!.
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Snap! is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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prerequisites:
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--------------
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needs morphic.js, xml.js, and most of Snap!'s other modules
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hierarchy
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---------
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the following tree lists all constructors hierarchically,
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indentation indicating inheritance. Refer to this list to get a
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contextual overview:
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XML_Serializer
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SnapSerializer
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credits
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-------
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Nathan Dinsmore contributed to the design and implemented a first
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working version of a complete XMLSerializer. I have taken much of the
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overall design and many of the functions and methods in this file from
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Nathan's fine original prototype.
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*/
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/*global modules, XML_Element, VariableFrame, StageMorph,
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SpriteMorph, WatcherMorph, Point, CustomBlockDefinition, Context,
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ReporterBlockMorph, CommandBlockMorph, HatBlockMorph, RingMorph, contains,
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detect, CustomCommandBlockMorph, CustomReporterBlockMorph, Color, List,
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newCanvas, Costume, Sound, Audio, IDE_Morph, ScriptsMorph, BlockMorph,
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ArgMorph, InputSlotMorph, TemplateSlotMorph, CommandSlotMorph,
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FunctionSlotMorph, MultiArgMorph, ColorSlotMorph, nop, CommentMorph, isNil,
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localize, sizeOf, ArgLabelMorph, SVG_Costume, MorphicPreferences,
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SyntaxElementMorph*/
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// Global stuff ////////////////////////////////////////////////////////
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modules.store = '2014-February-11';
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// XML_Serializer ///////////////////////////////////////////////////////
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/*
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I am an abstract protype for my heirs.
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I manage object identities and keep track of circular data structures.
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Objects are "touched" and a property named "serializationID" is added
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to each, representing an index integer in the list, starting with 1.
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*/
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// XML_Serializer instance creation:
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function XML_Serializer() {
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this.contents = [];
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this.media = [];
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this.isCollectingMedia = false;
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}
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// XML_Serializer preferences settings:
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XML_Serializer.prototype.idProperty = 'serializationID';
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XML_Serializer.prototype.mediaIdProperty = 'serializationMediaID';
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XML_Serializer.prototype.mediaDetectionProperty = 'isMedia';
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XML_Serializer.prototype.version = 1; // increment on structural change
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// XML_Serializer accessing:
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XML_Serializer.prototype.serialize = function (object) {
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// public: answer an XML string representing the given object
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var xml;
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this.flush(); // in case an error occurred in an earlier attempt
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this.flushMedia();
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xml = this.store(object);
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this.flush();
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return xml;
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};
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XML_Serializer.prototype.store = function (object, mediaID) {
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// private - mediaID is optional
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if (isNil(object) || !object.toXML) {
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// unsupported type, to be checked before calling store()
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// when debugging, be sure to throw an error at this point
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return '';
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}
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if (this.isCollectingMedia && object[this.mediaDetectionProperty]) {
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this.addMedia(object, mediaID);
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return this.format(
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'<ref mediaID="@"></ref>',
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object[this.mediaIdProperty]
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);
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}
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if (object[this.idProperty]) {
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return this.format('<ref id="@"></ref>', object[this.idProperty]);
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}
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this.add(object);
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return object.toXML(this, mediaID).replace(
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'~',
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this.format('id="@"', object[this.idProperty])
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);
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};
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XML_Serializer.prototype.mediaXML = function () {
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// answer a project's collected media module as XML
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var xml = '<media>',
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myself = this;
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this.media.forEach(function (object) {
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var str = object.toXML(myself).replace(
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'~',
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myself.format('mediaID="@"', object[myself.mediaIdProperty])
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);
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xml = xml + str;
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});
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return xml + '</media>';
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};
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XML_Serializer.prototype.add = function (object) {
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// private - mark the object with a serializationID property and add it
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if (object[this.idProperty]) { // already present
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return -1;
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}
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this.contents.push(object);
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object[this.idProperty] = this.contents.length;
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return this.contents.length;
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};
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XML_Serializer.prototype.addMedia = function (object, mediaID) {
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// private - mark the object with a serializationMediaID property
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// and add it to media
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// if a mediaID is given, take it, otherwise generate one
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if (object[this.mediaIdProperty]) { // already present
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return -1;
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}
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this.media.push(object);
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if (mediaID) {
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object[this.mediaIdProperty] = mediaID + '_' + object.name;
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} else {
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object[this.mediaIdProperty] = this.media.length;
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}
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return this.media.length;
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};
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XML_Serializer.prototype.at = function (integer) {
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// private
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return this.contents[integer - 1];
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};
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XML_Serializer.prototype.flush = function () {
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// private - free all objects and empty my contents
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var myself = this;
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this.contents.forEach(function (obj) {
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delete obj[myself.idProperty];
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});
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this.contents = [];
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};
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XML_Serializer.prototype.flushMedia = function () {
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// private - free all media objects and empty my media
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var myself = this;
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if (this.media instanceof Array) {
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this.media.forEach(function (obj) {
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delete obj[myself.mediaIdProperty];
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});
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}
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this.media = [];
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};
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// XML_Serializer formatting:
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XML_Serializer.prototype.escape = XML_Element.prototype.escape;
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XML_Serializer.prototype.unescape = XML_Element.prototype.unescape;
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XML_Serializer.prototype.format = function (string) {
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// private
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var myself = this,
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i = -1,
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values = arguments,
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value;
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return string.replace(/[@$%]([\d]+)?/g, function (spec, index) {
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index = parseInt(index, 10);
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if (isNaN(index)) {
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i += 1;
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value = values[i + 1];
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} else {
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value = values[index + 1];
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}
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// original line of code - now frowned upon by JSLint:
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// value = values[(isNaN(index) ? (i += 1) : index) + 1];
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return spec === '@' ?
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myself.escape(value)
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: spec === '$' ?
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myself.escape(value, true)
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: value;
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});
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};
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// XML_Serializer loading:
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XML_Serializer.prototype.load = function (xmlString) {
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// public - answer a new object which is represented by the given
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// XML string.
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nop(xmlString);
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throw new Error(
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'loading should be implemented in heir of XML_Serializer'
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);
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};
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XML_Serializer.prototype.parse = function (xmlString) {
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// private - answer an XML_Element representing the given XML String
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var element = new XML_Element();
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element.parseString(xmlString);
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return element;
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};
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// SnapSerializer ////////////////////////////////////////////////////////////
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var SnapSerializer;
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// SnapSerializer inherits from XML_Serializer:
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SnapSerializer.prototype = new XML_Serializer();
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SnapSerializer.prototype.constructor = SnapSerializer;
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SnapSerializer.uber = XML_Serializer.prototype;
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// SnapSerializer constants:
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SnapSerializer.prototype.app = 'Snap! 4.0, http://snap.berkeley.edu';
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SnapSerializer.prototype.thumbnailSize = new Point(160, 120);
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SnapSerializer.prototype.watcherLabels = {
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xPosition: 'x position',
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yPosition: 'y position',
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direction: 'direction',
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getScale: 'size',
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getLastAnswer: 'answer',
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getTimer: 'timer',
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getCostumeIdx: 'costume #',
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reportMouseX: 'mouse x',
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reportMouseY: 'mouse y'
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};
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// SnapSerializer instance creation:
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function SnapSerializer() {
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this.init();
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}
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// SnapSerializer initialization:
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SnapSerializer.prototype.init = function () {
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this.project = {};
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this.objects = {};
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this.mediaDict = {};
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};
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// SnapSerializer saving:
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XML_Serializer.prototype.mediaXML = function (name) {
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// under construction....
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var xml = '<media name="' +
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(name || 'untitled') +
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'" app="' + this.app +
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'" version="' +
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this.version +
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'">',
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myself = this;
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this.media.forEach(function (object) {
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var str = object.toXML(myself).replace(
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'~',
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myself.format('mediaID="@"', object[myself.mediaIdProperty])
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);
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xml = xml + str;
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});
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return xml + '</media>';
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};
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// SnapSerializer loading:
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SnapSerializer.prototype.load = function (xmlString) {
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// public - answer a new Project represented by the given XML String
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return this.loadProjectModel(this.parse(xmlString));
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};
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SnapSerializer.prototype.loadProjectModel = function (xmlNode) {
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// public - answer a new Project represented by the given XML top node
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var myself = this,
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project = {sprites: {}},
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model,
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nameID;
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this.project = project;
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model = {project: xmlNode };
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if (+xmlNode.attributes.version > this.version) {
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throw 'Project uses newer version of Serializer';
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}
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/* Project Info */
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this.objects = {};
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project.name = model.project.attributes.name;
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if (!project.name) {
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nameID = 1;
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while (
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Object.prototype.hasOwnProperty.call(
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localStorage,
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'-snap-project-Untitled ' + nameID
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)
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) {
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nameID += 1;
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}
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project.name = 'Untitled ' + nameID;
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}
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model.notes = model.project.childNamed('notes');
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if (model.notes) {
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project.notes = model.notes.contents;
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}
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model.globalVariables = model.project.childNamed('variables');
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project.globalVariables = new VariableFrame();
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/* Stage */
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model.stage = model.project.require('stage');
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StageMorph.prototype.frameRate = 0;
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project.stage = new StageMorph(project.globalVariables);
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if (Object.prototype.hasOwnProperty.call(
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model.stage.attributes,
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'id'
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)) {
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this.objects[model.stage.attributes.id] = project.stage;
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}
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if (model.stage.attributes.name) {
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project.stage.name = model.stage.attributes.name;
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}
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if (model.stage.attributes.scheduled === 'true') {
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project.stage.fps = 30;
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StageMorph.prototype.frameRate = 30;
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}
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model.pentrails = model.stage.childNamed('pentrails');
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if (model.pentrails) {
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project.pentrails = new Image();
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project.pentrails.onload = function () {
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var context = project.stage.trailsCanvas.getContext('2d');
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context.drawImage(project.pentrails, 0, 0);
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project.stage.changed();
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};
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project.pentrails.src = model.pentrails.contents;
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}
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project.stage.setTempo(model.stage.attributes.tempo);
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StageMorph.prototype.dimensions = new Point(480, 360);
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if (model.stage.attributes.width) {
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StageMorph.prototype.dimensions.x =
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+model.stage.attributes.width;
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}
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if (model.stage.attributes.height) {
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StageMorph.prototype.dimensions.y =
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+model.stage.attributes.height;
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}
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project.stage.setExtent(StageMorph.prototype.dimensions);
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SpriteMorph.prototype.useFlatLineEnds =
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model.stage.attributes.lines === 'flat';
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project.stage.isThreadSafe =
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model.stage.attributes.threadsafe === 'true';
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StageMorph.prototype.enableCodeMapping =
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model.stage.attributes.codify === 'true';
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model.hiddenPrimitives = model.project.childNamed('hidden');
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if (model.hiddenPrimitives) {
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model.hiddenPrimitives.contents.split(' ').forEach(
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function (sel) {
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if (sel) {
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StageMorph.prototype.hiddenPrimitives[sel] = true;
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}
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}
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);
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}
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model.codeHeaders = model.project.childNamed('headers');
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if (model.codeHeaders) {
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model.codeHeaders.children.forEach(function (xml) {
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StageMorph.prototype.codeHeaders[xml.tag] = xml.contents;
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});
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}
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model.codeMappings = model.project.childNamed('code');
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if (model.codeMappings) {
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model.codeMappings.children.forEach(function (xml) {
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StageMorph.prototype.codeMappings[xml.tag] = xml.contents;
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});
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}
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model.globalBlocks = model.project.childNamed('blocks');
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if (model.globalBlocks) {
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this.loadCustomBlocks(project.stage, model.globalBlocks, true);
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this.populateCustomBlocks(
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project.stage,
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model.globalBlocks,
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true
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);
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}
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this.loadObject(project.stage, model.stage);
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/* Sprites */
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model.sprites = model.stage.require('sprites');
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project.sprites[project.stage.name] = project.stage;
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model.sprites.childrenNamed('sprite').forEach(function (model) {
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myself.loadValue(model);
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});
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// restore nesting associations
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myself.project.stage.children.forEach(function (sprite) {
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var anchor;
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if (sprite.nestingInfo) { // only sprites may have nesting info
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anchor = myself.project.sprites[sprite.nestingInfo.anchor];
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if (anchor) {
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anchor.attachPart(sprite);
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}
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sprite.rotatesWithAnchor = (sprite.nestingInfo.synch === 'true');
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}
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});
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myself.project.stage.children.forEach(function (sprite) {
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if (sprite.nestingInfo) { // only sprites may have nesting info
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sprite.nestingScale = +(sprite.nestingInfo.scale || sprite.scale);
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delete sprite.nestingInfo;
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}
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});
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this.objects = {};
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/* Global Variables */
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if (model.globalVariables) {
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this.loadVariables(
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project.globalVariables,
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model.globalVariables
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);
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}
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/* Watchers */
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model.sprites.childrenNamed('watcher').forEach(function (model) {
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var watcher, color, target, hidden, extX, extY;
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color = myself.loadColor(model.attributes.color);
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target = Object.prototype.hasOwnProperty.call(
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model.attributes,
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'scope'
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) ? project.sprites[model.attributes.scope] : null;
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// determine whether the watcher is hidden, slightly
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// complicated to retain backward compatibility
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// with former tag format: hidden="hidden"
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// now it's: hidden="true"
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hidden = Object.prototype.hasOwnProperty.call(
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model.attributes,
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'hidden'
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) && (model.attributes.hidden !== 'false');
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if (Object.prototype.hasOwnProperty.call(
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model.attributes,
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'var'
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)) {
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watcher = new WatcherMorph(
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model.attributes['var'],
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color,
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isNil(target) ? project.globalVariables
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: target.variables,
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model.attributes['var'],
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hidden
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);
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} else {
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watcher = new WatcherMorph(
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localize(myself.watcherLabels[model.attributes.s]),
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color,
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target,
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model.attributes.s,
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hidden
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);
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}
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watcher.setStyle(model.attributes.style || 'normal');
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if (watcher.style === 'slider') {
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watcher.setSliderMin(model.attributes.min || '1');
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watcher.setSliderMax(model.attributes.max || '100');
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}
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watcher.setPosition(
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project.stage.topLeft().add(new Point(
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+model.attributes.x || 0,
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+model.attributes.y || 0
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))
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);
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project.stage.add(watcher);
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watcher.update();
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// set watcher's contentsMorph's extent if it is showing a list and
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// its monitor dimensions are given
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if (watcher.currentValue instanceof List) {
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extX = model.attributes.extX;
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if (extX) {
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watcher.cellMorph.contentsMorph.setWidth(+extX);
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}
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extY = model.attributes.extY;
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if (extY) {
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watcher.cellMorph.contentsMorph.setHeight(+extY);
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}
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// adjust my contentsMorph's handle position
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watcher.cellMorph.contentsMorph.handle.drawNew();
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}
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});
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this.objects = {};
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return project;
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};
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SnapSerializer.prototype.loadBlocks = function (xmlString, targetStage) {
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// public - answer a new Array of custom block definitions
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// represented by the given XML String
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var stage = new StageMorph(),
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model;
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this.project = {
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stage: stage,
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sprites: {},
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targetStage: targetStage // for secondary custom block def look-up
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};
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model = this.parse(xmlString);
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if (+model.attributes.version > this.version) {
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throw 'Module uses newer version of Serializer';
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}
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this.loadCustomBlocks(stage, model, true);
|
|
this.populateCustomBlocks(
|
|
stage,
|
|
model,
|
|
true
|
|
);
|
|
this.objects = {};
|
|
stage.globalBlocks.forEach(function (def) {
|
|
def.receiver = null;
|
|
});
|
|
this.objects = {};
|
|
this.project = {};
|
|
this.mediaDict = {};
|
|
return stage.globalBlocks;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadSprites = function (xmlString, ide) {
|
|
// public - import a set of sprites represented by xmlString
|
|
// into the current project of the ide
|
|
var model, project, myself = this;
|
|
|
|
project = this.project = {
|
|
globalVariables: ide.globalVariables,
|
|
stage: ide.stage,
|
|
sprites: {}
|
|
};
|
|
project.sprites[project.stage.name] = project.stage;
|
|
|
|
model = this.parse(xmlString);
|
|
if (+model.attributes.version > this.version) {
|
|
throw 'Module uses newer version of Serializer';
|
|
}
|
|
model.childrenNamed('sprite').forEach(function (model) {
|
|
var sprite = new SpriteMorph(project.globalVariables);
|
|
|
|
if (model.attributes.id) {
|
|
myself.objects[model.attributes.id] = sprite;
|
|
}
|
|
if (model.attributes.name) {
|
|
sprite.name = model.attributes.name;
|
|
project.sprites[model.attributes.name] = sprite;
|
|
}
|
|
if (model.attributes.color) {
|
|
sprite.color = myself.loadColor(model.attributes.color);
|
|
}
|
|
if (model.attributes.pen) {
|
|
sprite.penPoint = model.attributes.pen;
|
|
}
|
|
project.stage.add(sprite);
|
|
ide.sprites.add(sprite);
|
|
sprite.scale = parseFloat(model.attributes.scale || '1');
|
|
sprite.rotationStyle = parseFloat(
|
|
model.attributes.rotation || '1'
|
|
);
|
|
sprite.isDraggable = model.attributes.draggable !== 'false';
|
|
sprite.isVisible = model.attributes.hidden !== 'true';
|
|
sprite.heading = parseFloat(model.attributes.heading) || 0;
|
|
sprite.drawNew();
|
|
sprite.gotoXY(+model.attributes.x || 0, +model.attributes.y || 0);
|
|
myself.loadObject(sprite, model);
|
|
});
|
|
this.objects = {};
|
|
this.project = {};
|
|
this.mediaDict = {};
|
|
|
|
// ide.stage.drawNew();
|
|
ide.createCorral();
|
|
ide.fixLayout();
|
|
};
|
|
|
|
SnapSerializer.prototype.loadMedia = function (xmlString) {
|
|
// public - load the media represented by xmlString into memory
|
|
// to be referenced by a media-less project later
|
|
return this.loadMediaModel(this.parse(xmlString));
|
|
};
|
|
|
|
SnapSerializer.prototype.loadMediaModel = function (xmlNode) {
|
|
// public - load the media represented by xmlNode into memory
|
|
// to be referenced by a media-less project later
|
|
var myself = this,
|
|
model = xmlNode;
|
|
this.mediaDict = {};
|
|
if (+model.attributes.version > this.version) {
|
|
throw 'Module uses newer version of Serializer';
|
|
}
|
|
model.children.forEach(function (model) {
|
|
myself.loadValue(model);
|
|
});
|
|
return this.mediaDict;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadObject = function (object, model) {
|
|
// private
|
|
var blocks = model.require('blocks');
|
|
this.loadNestingInfo(object, model);
|
|
this.loadCostumes(object, model);
|
|
this.loadSounds(object, model);
|
|
this.loadCustomBlocks(object, blocks);
|
|
this.populateCustomBlocks(object, blocks);
|
|
this.loadVariables(object.variables, model.require('variables'));
|
|
this.loadScripts(object.scripts, model.require('scripts'));
|
|
};
|
|
|
|
SnapSerializer.prototype.loadNestingInfo = function (object, model) {
|
|
// private
|
|
var info = model.childNamed('nest');
|
|
if (info) {
|
|
object.nestingInfo = info.attributes;
|
|
}
|
|
};
|
|
|
|
SnapSerializer.prototype.loadCostumes = function (object, model) {
|
|
// private
|
|
var costumes = model.childNamed('costumes'),
|
|
costume;
|
|
if (costumes) {
|
|
object.costumes = this.loadValue(costumes.require('list'));
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'costume'
|
|
)) {
|
|
costume = object.costumes.asArray()[model.attributes.costume - 1];
|
|
if (costume) {
|
|
if (costume.loaded) {
|
|
object.wearCostume(costume);
|
|
} else {
|
|
costume.loaded = function () {
|
|
object.wearCostume(costume);
|
|
this.loaded = true;
|
|
};
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
SnapSerializer.prototype.loadSounds = function (object, model) {
|
|
// private
|
|
var sounds = model.childNamed('sounds');
|
|
if (sounds) {
|
|
object.sounds = this.loadValue(sounds.require('list'));
|
|
}
|
|
};
|
|
|
|
SnapSerializer.prototype.loadVariables = function (varFrame, element) {
|
|
// private
|
|
var myself = this;
|
|
|
|
element.children.forEach(function (child) {
|
|
var value;
|
|
if (child.tag !== 'variable') {
|
|
return;
|
|
}
|
|
value = child.children[0];
|
|
varFrame.vars[child.attributes.name] = value ?
|
|
myself.loadValue(value) : 0;
|
|
});
|
|
};
|
|
|
|
SnapSerializer.prototype.loadCustomBlocks = function (
|
|
object,
|
|
element,
|
|
isGlobal
|
|
) {
|
|
// private
|
|
var myself = this;
|
|
element.children.forEach(function (child) {
|
|
var definition, names, inputs, header, code, comment, i;
|
|
if (child.tag !== 'block-definition') {
|
|
return;
|
|
}
|
|
definition = new CustomBlockDefinition(
|
|
child.attributes.s || '',
|
|
object
|
|
);
|
|
definition.category = child.attributes.category || 'other';
|
|
definition.type = child.attributes.type || 'command';
|
|
definition.isGlobal = (isGlobal === true);
|
|
if (definition.isGlobal) {
|
|
object.globalBlocks.push(definition);
|
|
} else {
|
|
object.customBlocks.push(definition);
|
|
}
|
|
|
|
names = definition.parseSpec(definition.spec).filter(
|
|
function (str) {
|
|
return str.charAt(0) === '%';
|
|
}
|
|
).map(function (str) {
|
|
return str.substr(1);
|
|
});
|
|
|
|
definition.names = names;
|
|
inputs = child.childNamed('inputs');
|
|
if (inputs) {
|
|
i = -1;
|
|
inputs.children.forEach(function (child) {
|
|
var options = child.childNamed('options');
|
|
if (child.tag !== 'input') {
|
|
return;
|
|
}
|
|
i += 1;
|
|
definition.declarations[names[i]] = [
|
|
child.attributes.type,
|
|
child.contents,
|
|
options ? options.contents : undefined,
|
|
child.attributes.readonly === 'true'
|
|
];
|
|
});
|
|
}
|
|
|
|
header = child.childNamed('header');
|
|
if (header) {
|
|
definition.codeHeader = header.contents;
|
|
}
|
|
|
|
code = child.childNamed('code');
|
|
if (code) {
|
|
definition.codeMapping = code.contents;
|
|
}
|
|
|
|
comment = child.childNamed('comment');
|
|
if (comment) {
|
|
definition.comment = myself.loadComment(comment);
|
|
}
|
|
});
|
|
};
|
|
|
|
SnapSerializer.prototype.populateCustomBlocks = function (
|
|
object,
|
|
element,
|
|
isGlobal
|
|
) {
|
|
// private
|
|
var myself = this;
|
|
element.children.forEach(function (child, index) {
|
|
var definition, script, scripts;
|
|
if (child.tag !== 'block-definition') {
|
|
return;
|
|
}
|
|
definition = isGlobal ? object.globalBlocks[index]
|
|
: object.customBlocks[index];
|
|
script = child.childNamed('script');
|
|
if (script) {
|
|
definition.body = new Context(
|
|
null,
|
|
script ? myself.loadScript(script) : null,
|
|
null,
|
|
object
|
|
);
|
|
definition.body.inputs = definition.names.slice(0);
|
|
}
|
|
scripts = child.childNamed('scripts');
|
|
if (scripts) {
|
|
definition.scripts = myself.loadScriptsArray(scripts);
|
|
}
|
|
|
|
delete definition.names;
|
|
});
|
|
};
|
|
|
|
SnapSerializer.prototype.loadScripts = function (scripts, model) {
|
|
// private
|
|
var myself = this,
|
|
scale = SyntaxElementMorph.prototype.scale;
|
|
scripts.texture = 'scriptsPaneTexture.gif';
|
|
model.children.forEach(function (child) {
|
|
var element;
|
|
if (child.tag === 'script') {
|
|
element = myself.loadScript(child);
|
|
if (!element) {
|
|
return;
|
|
}
|
|
element.setPosition(new Point(
|
|
(+child.attributes.x || 0) * scale,
|
|
(+child.attributes.y || 0) * scale
|
|
).add(scripts.topLeft()));
|
|
scripts.add(element);
|
|
element.fixBlockColor(null, true); // force zebra coloring
|
|
element.allComments().forEach(function (comment) {
|
|
comment.align(element);
|
|
});
|
|
} else if (child.tag === 'comment') {
|
|
element = myself.loadComment(child);
|
|
if (!element) {
|
|
return;
|
|
}
|
|
element.setPosition(new Point(
|
|
(+child.attributes.x || 0) * scale,
|
|
(+child.attributes.y || 0) * scale
|
|
).add(scripts.topLeft()));
|
|
scripts.add(element);
|
|
}
|
|
});
|
|
};
|
|
|
|
SnapSerializer.prototype.loadScriptsArray = function (model) {
|
|
// private - answer an array containting the model's scripts
|
|
var myself = this,
|
|
scale = SyntaxElementMorph.prototype.scale,
|
|
scripts = [];
|
|
model.children.forEach(function (child) {
|
|
var element;
|
|
if (child.tag === 'script') {
|
|
element = myself.loadScript(child);
|
|
if (!element) {
|
|
return;
|
|
}
|
|
element.setPosition(new Point(
|
|
(+child.attributes.x || 0) * scale,
|
|
(+child.attributes.y || 0) * scale
|
|
));
|
|
scripts.push(element);
|
|
element.fixBlockColor(null, true); // force zebra coloring
|
|
} else if (child.tag === 'comment') {
|
|
element = myself.loadComment(child);
|
|
if (!element) {
|
|
return;
|
|
}
|
|
element.setPosition(new Point(
|
|
(+child.attributes.x || 0) * scale,
|
|
(+child.attributes.y || 0) * scale
|
|
));
|
|
scripts.push(element);
|
|
}
|
|
});
|
|
return scripts;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadScript = function (model) {
|
|
// private
|
|
var topBlock, block, nextBlock,
|
|
myself = this;
|
|
model.children.forEach(function (child) {
|
|
nextBlock = myself.loadBlock(child);
|
|
if (!nextBlock) {
|
|
return;
|
|
}
|
|
if (block) {
|
|
block.nextBlock(nextBlock);
|
|
} else {
|
|
topBlock = nextBlock;
|
|
}
|
|
block = nextBlock;
|
|
});
|
|
return topBlock;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadComment = function (model) {
|
|
// private
|
|
var comment = new CommentMorph(model.contents),
|
|
scale = SyntaxElementMorph.prototype.scale;
|
|
comment.isCollapsed = (model.attributes.collapsed === 'true');
|
|
comment.setTextWidth(+model.attributes.w * scale);
|
|
return comment;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadBlock = function (model, isReporter) {
|
|
// private
|
|
var block, info, inputs, isGlobal, rm, receiver;
|
|
if (model.tag === 'block') {
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'var'
|
|
)) {
|
|
return SpriteMorph.prototype.variableBlock(
|
|
model.attributes['var']
|
|
);
|
|
}
|
|
block = SpriteMorph.prototype.blockForSelector(model.attributes.s);
|
|
} else if (model.tag === 'custom-block') {
|
|
isGlobal = model.attributes.scope ? false : true;
|
|
receiver = isGlobal ? this.project.stage
|
|
: this.project.sprites[model.attributes.scope];
|
|
rm = model.childNamed('receiver');
|
|
if (rm && rm.children[0]) {
|
|
receiver = this.loadValue(
|
|
model.childNamed('receiver').children[0]
|
|
);
|
|
}
|
|
if (!receiver) {
|
|
return this.obsoleteBlock(isReporter);
|
|
}
|
|
if (isGlobal) {
|
|
info = detect(receiver.globalBlocks, function (block) {
|
|
return block.blockSpec() === model.attributes.s;
|
|
});
|
|
if (!info && this.project.targetStage) { // importing block files
|
|
info = detect(
|
|
this.project.targetStage.globalBlocks,
|
|
function (block) {
|
|
return block.blockSpec() === model.attributes.s;
|
|
}
|
|
);
|
|
}
|
|
} else {
|
|
info = detect(receiver.customBlocks, function (block) {
|
|
return block.blockSpec() === model.attributes.s;
|
|
});
|
|
}
|
|
if (!info) {
|
|
return this.obsoleteBlock(isReporter);
|
|
}
|
|
block = info.type === 'command' ? new CustomCommandBlockMorph(
|
|
info,
|
|
false
|
|
) : new CustomReporterBlockMorph(
|
|
info,
|
|
info.type === 'predicate',
|
|
false
|
|
);
|
|
}
|
|
if (block === null) {
|
|
block = this.obsoleteBlock(isReporter);
|
|
}
|
|
block.isDraggable = true;
|
|
inputs = block.inputs();
|
|
model.children.forEach(function (child, i) {
|
|
if (child.tag === 'comment') {
|
|
block.comment = this.loadComment(child);
|
|
block.comment.block = block;
|
|
} else if (child.tag === 'receiver') {
|
|
nop(); // ignore
|
|
} else {
|
|
this.loadInput(child, inputs[i], block);
|
|
}
|
|
}, this);
|
|
return block;
|
|
};
|
|
|
|
SnapSerializer.prototype.obsoleteBlock = function (isReporter) {
|
|
// private
|
|
var block = isReporter ? new ReporterBlockMorph()
|
|
: new CommandBlockMorph();
|
|
block.selector = 'nop';
|
|
block.color = new Color(200, 0, 20);
|
|
block.setSpec('Obsolete!');
|
|
block.isDraggable = true;
|
|
return block;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadInput = function (model, input, block) {
|
|
// private
|
|
var inp, val, myself = this;
|
|
if (model.tag === 'script') {
|
|
inp = this.loadScript(model);
|
|
if (inp) {
|
|
input.add(inp);
|
|
input.fixLayout();
|
|
}
|
|
} else if (model.tag === 'autolambda' && model.children[0]) {
|
|
inp = this.loadBlock(model.children[0], true);
|
|
if (inp) {
|
|
input.silentReplaceInput(input.children[0], inp);
|
|
input.fixLayout();
|
|
}
|
|
} else if (model.tag === 'list') {
|
|
while (input.inputs().length > 0) {
|
|
input.removeInput();
|
|
}
|
|
model.children.forEach(function (item) {
|
|
input.addInput();
|
|
myself.loadInput(
|
|
item,
|
|
input.children[input.children.length - 2],
|
|
input
|
|
);
|
|
});
|
|
input.fixLayout();
|
|
} else if (model.tag === 'block' || model.tag === 'custom-block') {
|
|
block.silentReplaceInput(input, this.loadBlock(model, true));
|
|
} else if (model.tag === 'color') {
|
|
input.setColor(this.loadColor(model.contents));
|
|
} else {
|
|
val = this.loadValue(model);
|
|
if (val) {
|
|
input.setContents(this.loadValue(model));
|
|
}
|
|
}
|
|
};
|
|
|
|
SnapSerializer.prototype.loadValue = function (model) {
|
|
// private
|
|
var v, items, el, center, image, name, audio, option,
|
|
myself = this;
|
|
|
|
function record() {
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'id'
|
|
)) {
|
|
myself.objects[model.attributes.id] = v;
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'mediaID'
|
|
)) {
|
|
myself.mediaDict[model.attributes.mediaID] = v;
|
|
}
|
|
}
|
|
switch (model.tag) {
|
|
case 'ref':
|
|
if (Object.prototype.hasOwnProperty.call(model.attributes, 'id')) {
|
|
return this.objects[model.attributes.id];
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'mediaID'
|
|
)) {
|
|
return this.mediaDict[model.attributes.mediaID];
|
|
}
|
|
throw new Error('expecting a reference id');
|
|
case 'l':
|
|
option = model.childNamed('option');
|
|
return option ? [option.contents] : model.contents;
|
|
case 'bool':
|
|
return model.contents === 'true';
|
|
case 'list':
|
|
if (model.attributes.hasOwnProperty('linked')) {
|
|
items = model.childrenNamed('item');
|
|
if (items.length === 0) {
|
|
v = new List();
|
|
record();
|
|
return v;
|
|
}
|
|
items.forEach(function (item) {
|
|
var value = item.children[0];
|
|
if (v === undefined) {
|
|
v = new List();
|
|
record();
|
|
} else {
|
|
v = v.rest = new List();
|
|
}
|
|
v.isLinked = true;
|
|
if (!value) {
|
|
v.first = 0;
|
|
} else {
|
|
v.first = myself.loadValue(value);
|
|
}
|
|
});
|
|
return v;
|
|
}
|
|
v = new List();
|
|
record();
|
|
v.contents = model.childrenNamed('item').map(function (item) {
|
|
var value = item.children[0];
|
|
if (!value) {
|
|
return 0;
|
|
}
|
|
return myself.loadValue(value);
|
|
});
|
|
return v;
|
|
case 'sprite':
|
|
v = new SpriteMorph(myself.project.globalVariables);
|
|
if (model.attributes.id) {
|
|
myself.objects[model.attributes.id] = v;
|
|
}
|
|
if (model.attributes.name) {
|
|
v.name = model.attributes.name;
|
|
myself.project.sprites[model.attributes.name] = v;
|
|
}
|
|
if (model.attributes.idx) {
|
|
v.idx = +model.attributes.idx;
|
|
}
|
|
if (model.attributes.color) {
|
|
v.color = myself.loadColor(model.attributes.color);
|
|
}
|
|
if (model.attributes.pen) {
|
|
v.penPoint = model.attributes.pen;
|
|
}
|
|
myself.project.stage.add(v);
|
|
v.scale = parseFloat(model.attributes.scale || '1');
|
|
v.rotationStyle = parseFloat(
|
|
model.attributes.rotation || '1'
|
|
);
|
|
v.isDraggable = model.attributes.draggable !== 'false';
|
|
v.isVisible = model.attributes.hidden !== 'true';
|
|
v.heading = parseFloat(model.attributes.heading) || 0;
|
|
v.drawNew();
|
|
v.gotoXY(+model.attributes.x || 0, +model.attributes.y || 0);
|
|
myself.loadObject(v, model);
|
|
return v;
|
|
case 'context':
|
|
v = new Context(null);
|
|
record();
|
|
el = model.childNamed('script');
|
|
if (el) {
|
|
v.expression = this.loadScript(el);
|
|
} else {
|
|
el = model.childNamed('block') ||
|
|
model.childNamed('custom-block');
|
|
if (el) {
|
|
v.expression = this.loadBlock(el);
|
|
} else {
|
|
el = model.childNamed('l');
|
|
if (el) {
|
|
v.expression = new InputSlotMorph(el.contents);
|
|
}
|
|
}
|
|
}
|
|
el = model.childNamed('receiver');
|
|
if (el) {
|
|
el = el.childNamed('ref') || el.childNamed('sprite');
|
|
if (el) {
|
|
v.receiver = this.loadValue(el);
|
|
}
|
|
}
|
|
el = model.childNamed('inputs');
|
|
if (el) {
|
|
el.children.forEach(function (item) {
|
|
if (item.tag === 'input') {
|
|
v.inputs.push(item.contents);
|
|
}
|
|
});
|
|
}
|
|
el = model.childNamed('variables');
|
|
if (el) {
|
|
this.loadVariables(v.variables, el);
|
|
}
|
|
el = model.childNamed('context');
|
|
if (el) {
|
|
v.outerContext = this.loadValue(el);
|
|
}
|
|
return v;
|
|
case 'costume':
|
|
center = new Point();
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'center-x'
|
|
)) {
|
|
center.x = parseFloat(model.attributes['center-x']);
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'center-y'
|
|
)) {
|
|
center.y = parseFloat(model.attributes['center-y']);
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'name'
|
|
)) {
|
|
name = model.attributes.name;
|
|
}
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'image'
|
|
)) {
|
|
image = new Image();
|
|
if (model.attributes.image.indexOf('data:image/svg+xml') === 0
|
|
&& !MorphicPreferences.rasterizeSVGs) {
|
|
v = new SVG_Costume(null, name, center);
|
|
image.onload = function () {
|
|
v.contents = image;
|
|
v.version = +new Date();
|
|
if (typeof v.loaded === 'function') {
|
|
v.loaded();
|
|
} else {
|
|
v.loaded = true;
|
|
}
|
|
};
|
|
} else {
|
|
v = new Costume(null, name, center);
|
|
image.onload = function () {
|
|
var canvas = newCanvas(
|
|
new Point(image.width, image.height)
|
|
),
|
|
context = canvas.getContext('2d');
|
|
context.drawImage(image, 0, 0);
|
|
v.contents = canvas;
|
|
v.version = +new Date();
|
|
if (typeof v.loaded === 'function') {
|
|
v.loaded();
|
|
} else {
|
|
v.loaded = true;
|
|
}
|
|
};
|
|
}
|
|
image.src = model.attributes.image;
|
|
}
|
|
record();
|
|
return v;
|
|
case 'sound':
|
|
audio = new Audio();
|
|
audio.src = model.attributes.sound;
|
|
v = new Sound(audio, model.attributes.name);
|
|
if (Object.prototype.hasOwnProperty.call(
|
|
model.attributes,
|
|
'mediaID'
|
|
)) {
|
|
myself.mediaDict[model.attributes.mediaID] = v;
|
|
}
|
|
return v;
|
|
}
|
|
return undefined;
|
|
};
|
|
|
|
SnapSerializer.prototype.loadColor = function (colorString) {
|
|
// private
|
|
var c = (colorString || '').split(',');
|
|
return new Color(
|
|
parseFloat(c[0]),
|
|
parseFloat(c[1]),
|
|
parseFloat(c[2]),
|
|
parseFloat(c[3])
|
|
);
|
|
};
|
|
|
|
SnapSerializer.prototype.openProject = function (project, ide) {
|
|
var stage = ide.stage,
|
|
sprites = [],
|
|
sprite;
|
|
if (!project || !project.stage) {
|
|
return;
|
|
}
|
|
ide.projectName = project.name;
|
|
ide.projectNotes = project.notes || '';
|
|
if (ide.globalVariables) {
|
|
ide.globalVariables = project.globalVariables;
|
|
}
|
|
if (stage) {
|
|
stage.destroy();
|
|
}
|
|
ide.add(project.stage);
|
|
ide.stage = project.stage;
|
|
sprites = ide.stage.children.filter(function (child) {
|
|
return child instanceof SpriteMorph;
|
|
});
|
|
sprites.sort(function (x, y) {
|
|
return x.idx - y.idx;
|
|
});
|
|
|
|
ide.sprites = new List(sprites);
|
|
sprite = sprites[0] || project.stage;
|
|
|
|
if (sizeOf(this.mediaDict) > 0) {
|
|
ide.hasChangedMedia = false;
|
|
this.mediaDict = {};
|
|
} else {
|
|
ide.hasChangedMedia = true;
|
|
}
|
|
project.stage.drawNew();
|
|
ide.createCorral();
|
|
ide.selectSprite(sprite);
|
|
ide.fixLayout();
|
|
ide.world().keyboardReceiver = project.stage;
|
|
};
|
|
|
|
// SnapSerializer XML-representation of objects:
|
|
|
|
// Generics
|
|
|
|
Array.prototype.toXML = function (serializer) {
|
|
return this.reduce(function (xml, item) {
|
|
return xml + serializer.store(item);
|
|
}, '');
|
|
};
|
|
|
|
// Sprites
|
|
|
|
StageMorph.prototype.toXML = function (serializer) {
|
|
var thumbnail = this.thumbnail(SnapSerializer.prototype.thumbnailSize),
|
|
thumbdata,
|
|
ide = this.parentThatIsA(IDE_Morph);
|
|
|
|
// catch cross-origin tainting exception when using SVG costumes
|
|
try {
|
|
thumbdata = thumbnail.toDataURL('image/png');
|
|
} catch (error) {
|
|
thumbdata = null;
|
|
}
|
|
|
|
function code(key) {
|
|
var str = '';
|
|
Object.keys(StageMorph.prototype[key]).forEach(
|
|
function (selector) {
|
|
str += (
|
|
'<' + selector + '>' +
|
|
XML_Element.prototype.escape(
|
|
StageMorph.prototype[key][selector]
|
|
) +
|
|
'</' + selector + '>'
|
|
);
|
|
}
|
|
);
|
|
return str;
|
|
}
|
|
|
|
this.removeAllClones();
|
|
return serializer.format(
|
|
'<project name="@" app="@" version="@">' +
|
|
'<notes>$</notes>' +
|
|
'<thumbnail>$</thumbnail>' +
|
|
'<stage name="@" width="@" height="@" ' +
|
|
'costume="@" tempo="@" threadsafe="@" ' +
|
|
'lines="@" ' +
|
|
'codify="@" ' +
|
|
'scheduled="@" ~>' +
|
|
'<pentrails>$</pentrails>' +
|
|
'<costumes>%</costumes>' +
|
|
'<sounds>%</sounds>' +
|
|
'<variables>%</variables>' +
|
|
'<blocks>%</blocks>' +
|
|
'<scripts>%</scripts><sprites>%</sprites>' +
|
|
'</stage>' +
|
|
'<hidden>$</hidden>' +
|
|
'<headers>%</headers>' +
|
|
'<code>%</code>' +
|
|
'<blocks>%</blocks>' +
|
|
'<variables>%</variables>' +
|
|
'</project>',
|
|
(ide && ide.projectName) ? ide.projectName : 'Untitled',
|
|
serializer.app,
|
|
serializer.version,
|
|
(ide && ide.projectNotes) ? ide.projectNotes : '',
|
|
thumbdata,
|
|
this.name,
|
|
StageMorph.prototype.dimensions.x,
|
|
StageMorph.prototype.dimensions.y,
|
|
this.getCostumeIdx(),
|
|
this.getTempo(),
|
|
this.isThreadSafe,
|
|
SpriteMorph.prototype.useFlatLineEnds ? 'flat' : 'round',
|
|
this.enableCodeMapping,
|
|
StageMorph.prototype.frameRate !== 0,
|
|
this.trailsCanvas.toDataURL('image/png'),
|
|
serializer.store(this.costumes, this.name + '_cst'),
|
|
serializer.store(this.sounds, this.name + '_snd'),
|
|
serializer.store(this.variables),
|
|
serializer.store(this.customBlocks),
|
|
serializer.store(this.scripts),
|
|
serializer.store(this.children),
|
|
Object.keys(StageMorph.prototype.hiddenPrimitives).reduce(
|
|
function (a, b) {return a + ' ' + b; },
|
|
''
|
|
),
|
|
code('codeHeaders'),
|
|
code('codeMappings'),
|
|
serializer.store(this.globalBlocks),
|
|
(ide && ide.globalVariables) ?
|
|
serializer.store(ide.globalVariables) : ''
|
|
);
|
|
};
|
|
|
|
SpriteMorph.prototype.toXML = function (serializer) {
|
|
var stage = this.parentThatIsA(StageMorph),
|
|
ide = stage ? stage.parentThatIsA(IDE_Morph) : null,
|
|
idx = ide ? ide.sprites.asArray().indexOf(this) + 1 : 0;
|
|
return serializer.format(
|
|
'<sprite name="@" idx="@" x="@" y="@"' +
|
|
' heading="@"' +
|
|
' scale="@"' +
|
|
' rotation="@"' +
|
|
' draggable="@"' +
|
|
'%' +
|
|
' costume="@" color="@,@,@" pen="@" ~>' +
|
|
'%' + // nesting info
|
|
'<costumes>%</costumes>' +
|
|
'<sounds>%</sounds>' +
|
|
'<variables>%</variables>' +
|
|
'<blocks>%</blocks>' +
|
|
'<scripts>%</scripts>' +
|
|
'</sprite>',
|
|
this.name,
|
|
idx,
|
|
this.xPosition(),
|
|
this.yPosition(),
|
|
this.heading,
|
|
this.scale,
|
|
this.rotationStyle,
|
|
this.isDraggable,
|
|
this.isVisible ? '' : ' hidden="true"',
|
|
this.getCostumeIdx(),
|
|
this.color.r,
|
|
this.color.g,
|
|
this.color.b,
|
|
this.penPoint,
|
|
|
|
// nesting info
|
|
this.anchor
|
|
? '<nest anchor="' +
|
|
this.anchor.name +
|
|
'" synch="'
|
|
+ this.rotatesWithAnchor
|
|
+ (this.scale === this.nestingScale ? '' :
|
|
'"'
|
|
+ ' scale="'
|
|
+ this.nestingScale)
|
|
|
|
+ '"/>'
|
|
: '',
|
|
|
|
serializer.store(this.costumes, this.name + '_cst'),
|
|
serializer.store(this.sounds, this.name + '_snd'),
|
|
serializer.store(this.variables),
|
|
!this.customBlocks ?
|
|
'' : serializer.store(this.customBlocks),
|
|
serializer.store(this.scripts)
|
|
);
|
|
};
|
|
|
|
Costume.prototype[XML_Serializer.prototype.mediaDetectionProperty] = true;
|
|
|
|
Costume.prototype.toXML = function (serializer) {
|
|
return serializer.format(
|
|
'<costume name="@" center-x="@" center-y="@" image="@" ~/>',
|
|
this.name,
|
|
this.rotationCenter.x,
|
|
this.rotationCenter.y,
|
|
this instanceof SVG_Costume ?
|
|
this.contents.src : this.contents.toDataURL('image/png')
|
|
);
|
|
};
|
|
|
|
Sound.prototype[XML_Serializer.prototype.mediaDetectionProperty] = true;
|
|
|
|
Sound.prototype.toXML = function (serializer) {
|
|
return serializer.format(
|
|
'<sound name="@" sound="@" ~/>',
|
|
this.name,
|
|
this.toDataURL()
|
|
);
|
|
};
|
|
|
|
VariableFrame.prototype.toXML = function (serializer) {
|
|
var myself = this;
|
|
return Object.keys(this.vars).reduce(function (vars, v) {
|
|
var val = myself.vars[v],
|
|
dta;
|
|
if (val === undefined || val === null) {
|
|
dta = serializer.format('<variable name="@"/>', v);
|
|
} else {
|
|
dta = serializer.format(
|
|
'<variable name="@">%</variable>',
|
|
v,
|
|
typeof val === 'object' ? serializer.store(val)
|
|
: typeof val === 'boolean' ?
|
|
serializer.format('<bool>$</bool>', val)
|
|
: serializer.format('<l>$</l>', val)
|
|
);
|
|
}
|
|
return vars + dta;
|
|
}, '');
|
|
};
|
|
|
|
// Watchers
|
|
|
|
WatcherMorph.prototype.toXML = function (serializer) {
|
|
var isVar = this.target instanceof VariableFrame,
|
|
isList = this.currentValue instanceof List,
|
|
color = this.readoutColor,
|
|
position = this.parent ?
|
|
this.topLeft().subtract(this.parent.topLeft())
|
|
: this.topLeft();
|
|
|
|
return serializer.format(
|
|
'<watcher% % style="@"% x="@" y="@" color="@,@,@"%%/>',
|
|
(isVar && this.target.owner) || (!isVar && this.target) ?
|
|
serializer.format(' scope="@"',
|
|
isVar ? this.target.owner.name : this.target.name)
|
|
: '',
|
|
serializer.format(isVar ? 'var="@"' : 's="@"', this.getter),
|
|
this.style,
|
|
isVar && this.style === 'slider' ? serializer.format(
|
|
' min="@" max="@"',
|
|
this.sliderMorph.start,
|
|
this.sliderMorph.stop
|
|
) : '',
|
|
position.x,
|
|
position.y,
|
|
color.r,
|
|
color.g,
|
|
color.b,
|
|
!isList ? ''
|
|
: serializer.format(
|
|
' extX="@" extY="@"',
|
|
this.cellMorph.contentsMorph.width(),
|
|
this.cellMorph.contentsMorph.height()
|
|
),
|
|
this.isVisible ? '' : ' hidden="true"'
|
|
);
|
|
};
|
|
|
|
// Scripts
|
|
|
|
ScriptsMorph.prototype.toXML = function (serializer) {
|
|
return this.children.reduce(function (xml, child) {
|
|
if (child instanceof BlockMorph) {
|
|
return xml + child.toScriptXML(serializer, true);
|
|
}
|
|
if (child instanceof CommentMorph && !child.block) { // unattached
|
|
return xml + child.toXML(serializer);
|
|
}
|
|
return xml;
|
|
}, '');
|
|
};
|
|
|
|
BlockMorph.prototype.toXML = BlockMorph.prototype.toScriptXML = function (
|
|
serializer,
|
|
savePosition
|
|
) {
|
|
var position,
|
|
xml,
|
|
scale = SyntaxElementMorph.prototype.scale,
|
|
block = this;
|
|
|
|
// determine my position
|
|
if (this.parent) {
|
|
position = this.topLeft().subtract(this.parent.topLeft());
|
|
} else {
|
|
position = this.topLeft();
|
|
}
|
|
|
|
// save my position to xml
|
|
if (savePosition) {
|
|
xml = serializer.format(
|
|
'<script x="@" y="@">',
|
|
position.x / scale,
|
|
position.y / scale
|
|
);
|
|
} else {
|
|
xml = '<script>';
|
|
}
|
|
|
|
// recursively add my next blocks to xml
|
|
do {
|
|
xml += block.toBlockXML(serializer);
|
|
block = block.nextBlock();
|
|
} while (block);
|
|
xml += '</script>';
|
|
return xml;
|
|
};
|
|
|
|
BlockMorph.prototype.toBlockXML = function (serializer) {
|
|
return serializer.format(
|
|
'<block s="@">%%</block>',
|
|
this.selector,
|
|
serializer.store(this.inputs()),
|
|
this.comment ? this.comment.toXML(serializer) : ''
|
|
);
|
|
};
|
|
|
|
ReporterBlockMorph.prototype.toXML = function (serializer) {
|
|
return this.selector === 'reportGetVar' ? serializer.format(
|
|
'<block var="@"/>',
|
|
this.blockSpec
|
|
) : this.toBlockXML(serializer);
|
|
};
|
|
|
|
ReporterBlockMorph.prototype.toScriptXML = function (
|
|
serializer,
|
|
savePosition
|
|
) {
|
|
var position,
|
|
scale = SyntaxElementMorph.prototype.scale;
|
|
|
|
// determine my save-position
|
|
if (this.parent) {
|
|
position = this.topLeft().subtract(this.parent.topLeft());
|
|
} else {
|
|
position = this.topLeft();
|
|
}
|
|
|
|
if (savePosition) {
|
|
return serializer.format(
|
|
'<script x="@" y="@">%</script>',
|
|
position.x / scale,
|
|
position.y / scale,
|
|
this.toXML(serializer)
|
|
);
|
|
}
|
|
return serializer.format('<script>%</script>', this.toXML(serializer));
|
|
};
|
|
|
|
CustomCommandBlockMorph.prototype.toBlockXML = function (serializer) {
|
|
var scope = this.definition.isGlobal ? undefined
|
|
: this.definition.receiver.name;
|
|
return serializer.format(
|
|
'<custom-block s="@"%>%%%</custom-block>',
|
|
this.blockSpec,
|
|
this.definition.isGlobal ?
|
|
'' : serializer.format(' scope="@"', scope),
|
|
serializer.store(this.inputs()),
|
|
this.comment ? this.comment.toXML(serializer) : '',
|
|
scope && !this.definition.receiver[serializer.idProperty] ?
|
|
'<receiver>' +
|
|
serializer.store(this.definition.receiver) +
|
|
'</receiver>'
|
|
: ''
|
|
);
|
|
};
|
|
|
|
CustomReporterBlockMorph.prototype.toBlockXML
|
|
= CustomCommandBlockMorph.prototype.toBlockXML;
|
|
|
|
CustomBlockDefinition.prototype.toXML = function (serializer) {
|
|
var myself = this;
|
|
|
|
function encodeScripts(array) {
|
|
return array.reduce(function (xml, element) {
|
|
if (element instanceof BlockMorph) {
|
|
return xml + element.toScriptXML(serializer, true);
|
|
}
|
|
if (element instanceof CommentMorph && !element.block) {
|
|
return xml + element.toXML(serializer);
|
|
}
|
|
return xml;
|
|
}, '');
|
|
}
|
|
|
|
return serializer.format(
|
|
'<block-definition s="@" type="@" category="@">' +
|
|
'%' +
|
|
'<header>@</header>' +
|
|
'<code>@</code>' +
|
|
'<inputs>%</inputs>%%' +
|
|
'</block-definition>',
|
|
this.spec,
|
|
this.type,
|
|
this.category || 'other',
|
|
this.comment ? this.comment.toXML(serializer) : '',
|
|
this.codeHeader || '',
|
|
this.codeMapping || '',
|
|
Object.keys(this.declarations).reduce(function (xml, decl) {
|
|
return xml + serializer.format(
|
|
'<input type="@"$>$%</input>',
|
|
myself.declarations[decl][0],
|
|
myself.declarations[decl][3] ?
|
|
' readonly="true"' : '',
|
|
myself.declarations[decl][1],
|
|
myself.declarations[decl][2] ?
|
|
'<options>' + myself.declarations[decl][2] +
|
|
'</options>'
|
|
: ''
|
|
);
|
|
}, ''),
|
|
this.body ? serializer.store(this.body.expression) : '',
|
|
this.scripts.length > 0 ?
|
|
'<scripts>' + encodeScripts(this.scripts) + '</scripts>'
|
|
: ''
|
|
);
|
|
};
|
|
|
|
// Scripts - Inputs
|
|
|
|
ArgMorph.prototype.toXML = function () {
|
|
return '<l/>'; // empty by default
|
|
};
|
|
|
|
InputSlotMorph.prototype.toXML = function (serializer) {
|
|
if (this.constant) {
|
|
return serializer.format(
|
|
'<l><option>$</option></l>',
|
|
this.constant
|
|
);
|
|
}
|
|
return serializer.format('<l>$</l>', this.contents().text);
|
|
};
|
|
|
|
TemplateSlotMorph.prototype.toXML = function (serializer) {
|
|
return serializer.format('<l>$</l>', this.contents());
|
|
};
|
|
|
|
CommandSlotMorph.prototype.toXML = function (serializer) {
|
|
var block = this.children[0];
|
|
if (block instanceof BlockMorph) {
|
|
if (block instanceof ReporterBlockMorph) {
|
|
return serializer.format(
|
|
'<autolambda>%</autolambda>',
|
|
serializer.store(block)
|
|
);
|
|
}
|
|
return serializer.store(block);
|
|
}
|
|
return '<script></script>';
|
|
};
|
|
|
|
FunctionSlotMorph.prototype.toXML = CommandSlotMorph.prototype.toXML;
|
|
|
|
MultiArgMorph.prototype.toXML = function (serializer) {
|
|
return serializer.format(
|
|
'<list>%</list>',
|
|
serializer.store(this.inputs())
|
|
);
|
|
};
|
|
|
|
ArgLabelMorph.prototype.toXML = function (serializer) {
|
|
return serializer.format(
|
|
'%',
|
|
serializer.store(this.inputs()[0])
|
|
);
|
|
};
|
|
|
|
ColorSlotMorph.prototype.toXML = function (serializer) {
|
|
return serializer.format(
|
|
'<color>$,$,$,$</color>',
|
|
this.color.r,
|
|
this.color.g,
|
|
this.color.b,
|
|
this.color.a
|
|
);
|
|
};
|
|
|
|
// Values
|
|
|
|
List.prototype.toXML = function (serializer, mediaContext) {
|
|
// mediaContext is an optional name-stub
|
|
// when collecting media into a separate module
|
|
var xml, item;
|
|
if (this.isLinked) {
|
|
xml = '<list linked="linked" ~>';
|
|
item = this;
|
|
do {
|
|
xml += serializer.format(
|
|
'<item>%</item>',
|
|
serializer.store(item.first)
|
|
);
|
|
item = item.rest;
|
|
} while (item !== undefined && (item !== null));
|
|
return xml + '</list>';
|
|
}
|
|
return serializer.format(
|
|
'<list ~>%</list>',
|
|
this.contents.reduce(function (xml, item) {
|
|
return xml + serializer.format(
|
|
'<item>%</item>',
|
|
typeof item === 'object' ?
|
|
serializer.store(item, mediaContext)
|
|
: typeof item === 'boolean' ?
|
|
serializer.format('<bool>$</bool>', item)
|
|
: serializer.format('<l>$</l>', item)
|
|
);
|
|
}, '')
|
|
);
|
|
};
|
|
|
|
|
|
Context.prototype.toXML = function (serializer) {
|
|
if (this.isContinuation) { // continuations are transient in Snap!
|
|
return '';
|
|
}
|
|
return serializer.format(
|
|
'<context% ~><inputs>%</inputs><variables>%</variables>' +
|
|
'%<receiver>%</receiver>%</context>',
|
|
this.isLambda ? ' lambda="lambda"' : '',
|
|
this.inputs.reduce(
|
|
function (xml, input) {
|
|
return xml + serializer.format('<input>$</input>', input);
|
|
},
|
|
''
|
|
),
|
|
this.variables ? serializer.store(this.variables) : '',
|
|
this.expression ? serializer.store(this.expression) : '',
|
|
this.receiver ? serializer.store(this.receiver) : '',
|
|
this.outerContext ? serializer.store(this.outerContext) : ''
|
|
);
|
|
};
|
|
|
|
// Comments
|
|
|
|
CommentMorph.prototype.toXML = function (serializer) {
|
|
var position,
|
|
scale = SyntaxElementMorph.prototype.scale;
|
|
|
|
if (this.block) { // attached to a block
|
|
return serializer.format(
|
|
'<comment w="@" collapsed="@">%</comment>',
|
|
this.textWidth() / scale,
|
|
this.isCollapsed,
|
|
serializer.escape(this.text())
|
|
);
|
|
}
|
|
|
|
// free-floating, determine my save-position
|
|
if (this.parent) {
|
|
position = this.topLeft().subtract(this.parent.topLeft());
|
|
} else {
|
|
position = this.topLeft();
|
|
}
|
|
return serializer.format(
|
|
'<comment x="@" y="@" w="@" collapsed="@">%</comment>',
|
|
position.x / scale,
|
|
position.y / scale,
|
|
this.textWidth() / scale,
|
|
this.isCollapsed,
|
|
serializer.escape(this.text())
|
|
);
|
|
};
|