mirror of
https://github.com/scratchfoundation/scratch-blocks.git
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207 lines
14 KiB
JavaScript
207 lines
14 KiB
JavaScript
/**
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* @license
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* Visual Blocks Language
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*
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* Copyright 2012 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Helper functions for generating PHP for blocks.
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* @author fraser@google.com (Neil Fraser)
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*/
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'use strict';
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goog.provide('Blockly.PHP');
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goog.require('Blockly.Generator');
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/**
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* PHP code generator.
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* @type !Blockly.Generator
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*/
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Blockly.PHP = new Blockly.Generator('PHP');
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/**
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* List of illegal variable names.
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* This is not intended to be a security feature. Blockly is 100% client-side,
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* so bypassing this list is trivial. This is intended to prevent users from
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* accidentally clobbering a built-in object or function.
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* @private
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*/
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Blockly.PHP.addReservedWords(
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'Blockly,' + // In case JS is evaled in the current window.
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// https://developer.mozilla.org/en/PHP/Reference/Reserved_Words
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'break,case,catch,continue,debugger,default,delete,do,else,finally,for,function,if,in,instanceof,new,return,switch,this,throw,try,typeof,var,void,while,with,' +
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'class,enum,export,extends,import,super,implements,interface,let,package,private,protected,public,static,yield,' +
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'const,null,true,false,' +
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// https://developer.mozilla.org/en/PHP/Reference/Global_Objects
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'Array,ArrayBuffer,Boolean,Date,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,Error,eval,EvalError,Float32Array,Float64Array,Function,Infinity,Int16Array,Int32Array,Int8Array,isFinite,isNaN,Iterator,JSON,Math,NaN,Number,Object,parseFloat,parseInt,RangeError,ReferenceError,RegExp,StopIteration,String,SyntaxError,TypeError,Uint16Array,Uint32Array,Uint8Array,Uint8ClampedArray,undefined,uneval,URIError,' +
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// https://developer.mozilla.org/en/DOM/window
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'applicationCache,closed,Components,content,_content,controllers,crypto,defaultStatus,dialogArguments,directories,document,frameElement,frames,fullScreen,globalStorage,history,innerHeight,innerWidth,length,location,locationbar,localStorage,menubar,messageManager,mozAnimationStartTime,mozInnerScreenX,mozInnerScreenY,mozPaintCount,name,navigator,opener,outerHeight,outerWidth,pageXOffset,pageYOffset,parent,performance,personalbar,pkcs11,returnValue,screen,screenX,screenY,scrollbars,scrollMaxX,scrollMaxY,scrollX,scrollY,self,sessionStorage,sidebar,status,statusbar,toolbar,top,URL,window,' +
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'addEventListener,alert,atob,back,blur,btoa,captureEvents,clearImmediate,clearInterval,clearTimeout,close,confirm,disableExternalCapture,dispatchEvent,dump,enableExternalCapture,escape,find,focus,forward,GeckoActiveXObject,getAttention,getAttentionWithCycleCount,getComputedStyle,getSelection,home,matchMedia,maximize,minimize,moveBy,moveTo,mozRequestAnimationFrame,open,openDialog,postMessage,print,prompt,QueryInterface,releaseEvents,removeEventListener,resizeBy,resizeTo,restore,routeEvent,scroll,scrollBy,scrollByLines,scrollByPages,scrollTo,setCursor,setImmediate,setInterval,setResizable,setTimeout,showModalDialog,sizeToContent,stop,unescape,updateCommands,XPCNativeWrapper,XPCSafeJSObjectWrapper,' +
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'onabort,onbeforeunload,onblur,onchange,onclick,onclose,oncontextmenu,ondevicemotion,ondeviceorientation,ondragdrop,onerror,onfocus,onhashchange,onkeydown,onkeypress,onkeyup,onload,onmousedown,onmousemove,onmouseout,onmouseover,onmouseup,onmozbeforepaint,onpaint,onpopstate,onreset,onresize,onscroll,onselect,onsubmit,onunload,onpageshow,onpagehide,' +
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'Image,Option,Worker,' +
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// https://developer.mozilla.org/en/Gecko_DOM_Reference
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'Event,Range,File,FileReader,Blob,BlobBuilder,' +
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'Attr,CDATASection,CharacterData,Comment,console,DocumentFragment,DocumentType,DomConfiguration,DOMError,DOMErrorHandler,DOMException,DOMImplementation,DOMImplementationList,DOMImplementationRegistry,DOMImplementationSource,DOMLocator,DOMObject,DOMString,DOMStringList,DOMTimeStamp,DOMUserData,Entity,EntityReference,MediaQueryList,MediaQueryListListener,NameList,NamedNodeMap,Node,NodeFilter,NodeIterator,NodeList,Notation,Plugin,PluginArray,ProcessingInstruction,SharedWorker,Text,TimeRanges,Treewalker,TypeInfo,UserDataHandler,Worker,WorkerGlobalScope,' +
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'HTMLDocument,HTMLElement,HTMLAnchorElement,HTMLAppletElement,HTMLAudioElement,HTMLAreaElement,HTMLBaseElement,HTMLBaseFontElement,HTMLBodyElement,HTMLBRElement,HTMLButtonElement,HTMLCanvasElement,HTMLDirectoryElement,HTMLDivElement,HTMLDListElement,HTMLEmbedElement,HTMLFieldSetElement,HTMLFontElement,HTMLFormElement,HTMLFrameElement,HTMLFrameSetElement,HTMLHeadElement,HTMLHeadingElement,HTMLHtmlElement,HTMLHRElement,HTMLIFrameElement,HTMLImageElement,HTMLInputElement,HTMLKeygenElement,HTMLLabelElement,HTMLLIElement,HTMLLinkElement,HTMLMapElement,HTMLMenuElement,HTMLMetaElement,HTMLModElement,HTMLObjectElement,HTMLOListElement,HTMLOptGroupElement,HTMLOptionElement,HTMLOutputElement,HTMLParagraphElement,HTMLParamElement,HTMLPreElement,HTMLQuoteElement,HTMLScriptElement,HTMLSelectElement,HTMLSourceElement,HTMLSpanElement,HTMLStyleElement,HTMLTableElement,HTMLTableCaptionElement,HTMLTableCellElement,HTMLTableDataCellElement,HTMLTableHeaderCellElement,HTMLTableColElement,HTMLTableRowElement,HTMLTableSectionElement,HTMLTextAreaElement,HTMLTimeElement,HTMLTitleElement,HTMLTrackElement,HTMLUListElement,HTMLUnknownElement,HTMLVideoElement,' +
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'HTMLCanvasElement,CanvasRenderingContext2D,CanvasGradient,CanvasPattern,TextMetrics,ImageData,CanvasPixelArray,HTMLAudioElement,HTMLVideoElement,NotifyAudioAvailableEvent,HTMLCollection,HTMLAllCollection,HTMLFormControlsCollection,HTMLOptionsCollection,HTMLPropertiesCollection,DOMTokenList,DOMSettableTokenList,DOMStringMap,RadioNodeList,' +
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'SVGDocument,SVGElement,SVGAElement,SVGAltGlyphElement,SVGAltGlyphDefElement,SVGAltGlyphItemElement,SVGAnimationElement,SVGAnimateElement,SVGAnimateColorElement,SVGAnimateMotionElement,SVGAnimateTransformElement,SVGSetElement,SVGCircleElement,SVGClipPathElement,SVGColorProfileElement,SVGCursorElement,SVGDefsElement,SVGDescElement,SVGEllipseElement,SVGFilterElement,SVGFilterPrimitiveStandardAttributes,SVGFEBlendElement,SVGFEColorMatrixElement,SVGFEComponentTransferElement,SVGFECompositeElement,SVGFEConvolveMatrixElement,SVGFEDiffuseLightingElement,SVGFEDisplacementMapElement,SVGFEDistantLightElement,SVGFEFloodElement,SVGFEGaussianBlurElement,SVGFEImageElement,SVGFEMergeElement,SVGFEMergeNodeElement,SVGFEMorphologyElement,SVGFEOffsetElement,SVGFEPointLightElement,SVGFESpecularLightingElement,SVGFESpotLightElement,SVGFETileElement,SVGFETurbulenceElement,SVGComponentTransferFunctionElement,SVGFEFuncRElement,SVGFEFuncGElement,SVGFEFuncBElement,SVGFEFuncAElement,SVGFontElement,SVGFontFaceElement,SVGFontFaceFormatElement,SVGFontFaceNameElement,SVGFontFaceSrcElement,SVGFontFaceUriElement,SVGForeignObjectElement,SVGGElement,SVGGlyphElement,SVGGlyphRefElement,SVGGradientElement,SVGLinearGradientElement,SVGRadialGradientElement,SVGHKernElement,SVGImageElement,SVGLineElement,SVGMarkerElement,SVGMaskElement,SVGMetadataElement,SVGMissingGlyphElement,SVGMPathElement,SVGPathElement,SVGPatternElement,SVGPolylineElement,SVGPolygonElement,SVGRectElement,SVGScriptElement,SVGStopElement,SVGStyleElement,SVGSVGElement,SVGSwitchElement,SVGSymbolElement,SVGTextElement,SVGTextPathElement,SVGTitleElement,SVGTRefElement,SVGTSpanElement,SVGUseElement,SVGViewElement,SVGVKernElement,' +
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'SVGAngle,SVGColor,SVGICCColor,SVGElementInstance,SVGElementInstanceList,SVGLength,SVGLengthList,SVGMatrix,SVGNumber,SVGNumberList,SVGPaint,SVGPoint,SVGPointList,SVGPreserveAspectRatio,SVGRect,SVGStringList,SVGTransform,SVGTransformList,' +
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'SVGAnimatedAngle,SVGAnimatedBoolean,SVGAnimatedEnumeration,SVGAnimatedInteger,SVGAnimatedLength,SVGAnimatedLengthList,SVGAnimatedNumber,SVGAnimatedNumberList,SVGAnimatedPreserveAspectRatio,SVGAnimatedRect,SVGAnimatedString,SVGAnimatedTransformList,' +
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'SVGPathSegList,SVGPathSeg,SVGPathSegArcAbs,SVGPathSegArcRel,SVGPathSegClosePath,SVGPathSegCurvetoCubicAbs,SVGPathSegCurvetoCubicRel,SVGPathSegCurvetoCubicSmoothAbs,SVGPathSegCurvetoCubicSmoothRel,SVGPathSegCurvetoQuadraticAbs,SVGPathSegCurvetoQuadraticRel,SVGPathSegCurvetoQuadraticSmoothAbs,SVGPathSegCurvetoQuadraticSmoothRel,SVGPathSegLinetoAbs,SVGPathSegLinetoHorizontalAbs,SVGPathSegLinetoHorizontalRel,SVGPathSegLinetoRel,SVGPathSegLinetoVerticalAbs,SVGPathSegLinetoVerticalRel,SVGPathSegMovetoAbs,SVGPathSegMovetoRel,ElementTimeControl,TimeEvent,SVGAnimatedPathData,' +
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'SVGAnimatedPoints,SVGColorProfileRule,SVGCSSRule,SVGExternalResourcesRequired,SVGFitToViewBox,SVGLangSpace,SVGLocatable,SVGRenderingIntent,SVGStylable,SVGTests,SVGTextContentElement,SVGTextPositioningElement,SVGTransformable,SVGUnitTypes,SVGURIReference,SVGViewSpec,SVGZoomAndPan');
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/**
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* Order of operation ENUMs.
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* https://developer.mozilla.org/en/PHP/Reference/Operators/Operator_Precedence
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*/
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Blockly.PHP.ORDER_ATOMIC = 0; // 0 "" ...
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Blockly.PHP.ORDER_MEMBER = 1; // . []
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Blockly.PHP.ORDER_NEW = 1; // new
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Blockly.PHP.ORDER_FUNCTION_CALL = 2; // ()
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Blockly.PHP.ORDER_INCREMENT = 3; // ++
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Blockly.PHP.ORDER_DECREMENT = 3; // --
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Blockly.PHP.ORDER_LOGICAL_NOT = 4; // !
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Blockly.PHP.ORDER_BITWISE_NOT = 4; // ~
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Blockly.PHP.ORDER_UNARY_PLUS = 4; // +
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Blockly.PHP.ORDER_UNARY_NEGATION = 4; // -
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Blockly.PHP.ORDER_TYPEOF = 4; // typeof
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Blockly.PHP.ORDER_VOID = 4; // void
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Blockly.PHP.ORDER_DELETE = 4; // delete
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Blockly.PHP.ORDER_MULTIPLICATION = 5; // *
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Blockly.PHP.ORDER_DIVISION = 5; // /
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Blockly.PHP.ORDER_MODULUS = 5; // %
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Blockly.PHP.ORDER_ADDITION = 6; // +
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Blockly.PHP.ORDER_SUBTRACTION = 6; // -
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Blockly.PHP.ORDER_BITWISE_SHIFT = 7; // << >> >>>
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Blockly.PHP.ORDER_RELATIONAL = 8; // < <= > >=
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Blockly.PHP.ORDER_IN = 8; // in
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Blockly.PHP.ORDER_INSTANCEOF = 8; // instanceof
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Blockly.PHP.ORDER_EQUALITY = 9; // == != === !==
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Blockly.PHP.ORDER_BITWISE_AND = 10; // &
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Blockly.PHP.ORDER_BITWISE_XOR = 11; // ^
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Blockly.PHP.ORDER_BITWISE_OR = 12; // |
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Blockly.PHP.ORDER_LOGICAL_AND = 13; // &&
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Blockly.PHP.ORDER_LOGICAL_OR = 14; // ||
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Blockly.PHP.ORDER_CONDITIONAL = 15; // ?:
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Blockly.PHP.ORDER_ASSIGNMENT = 16; // = += -= *= /= %= <<= >>= ...
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Blockly.PHP.ORDER_COMMA = 17; // ,
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Blockly.PHP.ORDER_NONE = 99; // (...)
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/**
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* Initialise the database of variable names.
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* @param {!Blockly.Workspace} workspace Workspace to generate code from.
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*/
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Blockly.PHP.init = function(workspace) {
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// Create a dictionary of definitions to be printed before the code.
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Blockly.PHP.definitions_ = Object.create(null);
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// Create a dictionary mapping desired function names in definitions_
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// to actual function names (to avoid collisions with user functions).
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Blockly.PHP.functionNames_ = Object.create(null);
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if (!Blockly.PHP.variableDB_) {
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Blockly.PHP.variableDB_ =
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new Blockly.Names(Blockly.PHP.RESERVED_WORDS_, true);
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} else {
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Blockly.PHP.variableDB_.reset();
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}
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var defvars = [];
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var variables = Blockly.Variables.allVariables(workspace);
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for (var x = 0; x < variables.length; x++) {
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defvars[x] = Blockly.PHP.variableDB_.getName(variables[x],
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Blockly.Variables.NAME_TYPE) + ';';
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}
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Blockly.PHP.definitions_['variables'] = defvars.join('\n');
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};
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/**
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* Prepend the generated code with the variable definitions.
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* @param {string} code Generated code.
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* @return {string} Completed code.
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*/
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Blockly.PHP.finish = function(code) {
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// Convert the definitions dictionary into a list.
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var definitions = [];
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for (var name in Blockly.PHP.definitions_) {
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definitions.push(Blockly.PHP.definitions_[name]);
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}
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return definitions.join('\n\n') + '\n\n\n' + code;
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};
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/**
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* Naked values are top-level blocks with outputs that aren't plugged into
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* anything. A trailing semicolon is needed to make this legal.
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* @param {string} line Line of generated code.
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* @return {string} Legal line of code.
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*/
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Blockly.PHP.scrubNakedValue = function(line) {
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return line + ';\n';
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};
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/**
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* Encode a string as a properly escaped PHP string, complete with
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* quotes.
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* @param {string} string Text to encode.
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* @return {string} PHP string.
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* @private
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*/
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Blockly.PHP.quote_ = function(string) {
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// TODO: This is a quick hack. Replace with goog.string.quote
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string = string.replace(/\\/g, '\\\\')
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.replace(/\n/g, '\\\n')
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.replace(/'/g, '\\\'');
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return '\'' + string + '\'';
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};
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/**
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* Common tasks for generating PHP from blocks.
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* Handles comments for the specified block and any connected value blocks.
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* Calls any statements following this block.
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* @param {!Blockly.Block} block The current block.
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* @param {string} code The PHP code created for this block.
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* @return {string} PHP code with comments and subsequent blocks added.
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* @private
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*/
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Blockly.PHP.scrub_ = function(block, code) {
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var commentCode = '';
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// Only collect comments for blocks that aren't inline.
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if (!block.outputConnection || !block.outputConnection.targetConnection) {
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// Collect comment for this block.
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var comment = block.getCommentText();
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if (comment) {
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commentCode += Blockly.PHP.prefixLines(comment, '// ') + '\n';
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}
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// Collect comments for all value arguments.
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// Don't collect comments for nested statements.
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for (var x = 0; x < block.inputList.length; x++) {
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if (block.inputList[x].type == Blockly.INPUT_VALUE) {
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var childBlock = block.inputList[x].connection.targetBlock();
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if (childBlock) {
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var comment = Blockly.PHP.allNestedComments(childBlock);
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if (comment) {
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commentCode += Blockly.PHP.prefixLines(comment, '// ');
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}
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}
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}
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}
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}
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var nextBlock = block.nextConnection && block.nextConnection.targetBlock();
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var nextCode = Blockly.PHP.blockToCode(nextBlock);
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return commentCode + code + nextCode;
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};
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