Embed communication protocol updated, embed api file added
git-svn-id: http://svg-edit.googlecode.com/svn/trunk@966 eee81c28-f429-11dd-99c0-75d572ba1dddmaster
Kevin Kwok
parent
ceb89dd557
commit
db5df84bcc
|
|
@ -0,0 +1,126 @@
|
|||
/*
|
||||
Embedded SVG-edit API
|
||||
|
||||
General usage:
|
||||
- Have an iframe somewhere pointing to a version of svg-edit > r1000
|
||||
- Initialize the magic with:
|
||||
var svgCanvas = new embedded_svg_edit(window.frames['svgedit']);
|
||||
- Pass functions in this format:
|
||||
svgCanvas.setSvgString("string")
|
||||
- Or if a callback is needed:
|
||||
svgCanvas.setSvgString("string")(function(data, error){
|
||||
if(error){
|
||||
//there was an error
|
||||
}else{
|
||||
//handle data
|
||||
}
|
||||
})
|
||||
|
||||
Everything is done with the same API as the real svg-edit,
|
||||
and all documentation is unchanged. The only difference is
|
||||
when handling returns, the callback notation is used instead.
|
||||
|
||||
var blah = new embedded_svg_edit(window.frames['svgedit']);
|
||||
blah.clearSelection("woot","blah",1337,[1,2,3,4,5,"moo"],-42,{a: "tree",b:6, c: 9})(function(){console.log("GET DATA",arguments)})
|
||||
*/
|
||||
|
||||
function embedded_svg_edit(frame){
|
||||
//initialize communication
|
||||
this.frame = frame;
|
||||
//this.stack = [] //callback stack
|
||||
this.callbacks = {}; //successor to stack
|
||||
this.encode = embedded_svg_edit.encode;
|
||||
//List of functions extracted with this:
|
||||
//Run in firebug on http://svg-edit.googlecode.com/svn/trunk/docs/files/svgcanvas-js.html
|
||||
|
||||
//for(var i=0,q=[],f = document.querySelectorAll("div.CFunction h3.CTitle a");i<f.length;i++){q.push(f[i].name)};q
|
||||
//var functions = ["clearSelection", "addToSelection", "removeFromSelection", "open", "save", "getSvgString", "setSvgString", "createLayer", "deleteCurrentLayer", "getNumLayers", "getLayer", "getCurrentLayer", "setCurrentLayer", "renameCurrentLayer", "setCurrentLayerPosition", "getLayerVisibility", "setLayerVisibility", "moveSelectedToLayer", "getLayerOpacity", "setLayerOpacity", "clear"];
|
||||
|
||||
|
||||
//Newer, well, it extracts things that aren't documented as well. All functions accessible through the normal thingy can now be accessed though the API
|
||||
//var l=[];for(var i in svgCanvas){if(typeof svgCanvas[i] == "function"){l.push(i)}};
|
||||
//run in svgedit itself
|
||||
var functions = ["updateElementFromJson", "embedImage", "fixOperaXML", "clearSelection", "addToSelection", "removeFromSelection", "addNodeToSelection", "open", "save", "getSvgString", "setSvgString", "createLayer", "deleteCurrentLayer", "getNumLayers", "getLayer", "getCurrentLayer", "setCurrentLayer", "renameCurrentLayer", "setCurrentLayerPosition", "getLayerVisibility", "setLayerVisibility", "moveSelectedToLayer", "getLayerOpacity", "setLayerOpacity", "clear", "clearPath", "getNodePoint", "clonePathNode", "deletePathNode", "getResolution", "getImageTitle", "setImageTitle", "setResolution", "setBBoxZoom", "setZoom", "getMode", "setMode", "getStrokeColor", "setStrokeColor", "getFillColor", "setFillColor", "setStrokePaint", "setFillPaint", "getStrokeWidth", "setStrokeWidth", "getStrokeStyle", "setStrokeStyle", "getOpacity", "setOpacity", "getFillOpacity", "setFillOpacity", "getStrokeOpacity", "setStrokeOpacity", "getTransformList", "getBBox", "getRotationAngle", "setRotationAngle", "each", "bind", "setIdPrefix", "getBold", "setBold", "getItalic", "setItalic", "getFontFamily", "setFontFamily", "getFontSize", "setFontSize", "getText", "setTextContent", "setImageURL", "setRectRadius", "setSegType", "quickClone", "beginUndoableChange", "changeSelectedAttributeNoUndo", "finishUndoableChange", "changeSelectedAttribute", "deleteSelectedElements", "groupSelectedElements", "ungroupSelectedElement", "moveToTopSelectedElement", "moveToBottomSelectedElement", "moveSelectedElements", "getStrokedBBox", "getVisibleElements", "cycleElement", "getUndoStackSize", "getRedoStackSize", "getNextUndoCommandText", "getNextRedoCommandText", "undo", "redo", "cloneSelectedElements", "alignSelectedElements", "getZoom", "getVersion", "setIconSize", "setLang", "setCustomHandlers"]
|
||||
|
||||
//TODO: rewrite the following, it's pretty scary.
|
||||
for(var i = 0; i < functions.length; i++){
|
||||
this[functions[i]] = (function(d){
|
||||
return function(){
|
||||
var cbk = function(){}, t = this //new callback
|
||||
for(var g = 0, args = []; g < arguments.length; g++){
|
||||
args.push(arguments[g]);
|
||||
}
|
||||
setTimeout(function(){//delay for the callback to be set in case its synchronous
|
||||
t.send(d, //the name of the function
|
||||
args, //the arguments to the function
|
||||
function(r){
|
||||
cbk(r); //the callback (currently it's nothing, but will be set later
|
||||
})
|
||||
},0)
|
||||
return function(newcallback){
|
||||
cbk = newcallback;
|
||||
}
|
||||
}
|
||||
})(functions[i])
|
||||
}
|
||||
//TODO: use AddEvent for Trident browsers, currently they dont support SVG, but they do support onmessage
|
||||
var t = this;
|
||||
window.addEventListener("message", function(e){
|
||||
if(e.data.substr(0,4)=="SVGe"){ //because svg-edit is too longish
|
||||
var data = e.data.substr(4);
|
||||
var cbid = parseInt(data.substr(0, data.indexOf(";")));
|
||||
if(t.callbacks[cbid]){
|
||||
if(data.substr(0,6) != "error:"){
|
||||
t.callbacks[cbid](eval("("+data+")"))
|
||||
}else{
|
||||
t.callbacks[cbid](data, "error");
|
||||
}
|
||||
}
|
||||
}
|
||||
//this.stack.shift()[0](e.data,e.data.substr(0,5) == "ERROR"?'error':null) //replace with shift
|
||||
}, false)
|
||||
}
|
||||
|
||||
embedded_svg_edit.encode = function(obj){
|
||||
//simple partial JSON encoder implementation
|
||||
if(window.JSON && JSON.stringify) return JSON.stringify(obj);
|
||||
var enc = arguments.callee; //for purposes of recursion
|
||||
|
||||
if(typeof obj == "boolean" || typeof obj == "number"){
|
||||
return obj+'' //should work...
|
||||
}else if(typeof obj == "string"){
|
||||
//a large portion of this is stolen from Douglas Crockford's json2.js
|
||||
return '"'+
|
||||
obj.replace(
|
||||
/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g
|
||||
, function (a) {
|
||||
return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
|
||||
})
|
||||
+'"'; //note that this isn't quite as purtyful as the usualness
|
||||
}else if(obj.length){ //simple hackish test for arrayish-ness
|
||||
for(var i = 0; i < obj.length; i++){
|
||||
obj[i] = enc(obj[i]); //encode every sub-thingy on top
|
||||
}
|
||||
return "["+obj.join(",")+"]";
|
||||
}else{
|
||||
var pairs = []; //pairs will be stored here
|
||||
for(var k in obj){ //loop through thingys
|
||||
pairs.push(enc(k)+":"+enc(obj[k])); //key: value
|
||||
}
|
||||
return "{"+pairs.join(",")+"}" //wrap in the braces
|
||||
}
|
||||
}
|
||||
|
||||
embedded_svg_edit.prototype.send = function(name, args, callback){
|
||||
var cbid = Math.floor(Math.random()*31776352877+993577).toString();
|
||||
//this.stack.push(callback);
|
||||
this.callbacks[cbid] = callback;
|
||||
for(var argstr = [], i = 0; i < args.length; i++){
|
||||
argstr.push(this.encode(args[i]))
|
||||
}
|
||||
this.frame.contentWindow.postMessage(cbid+";svgCanvas['"+name+"']("+argstr.join(",")+")");
|
||||
//this.stack.shift()("svgCanvas['"+name+"']("+argstr.join(",")+")")
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
|
@ -2238,11 +2238,40 @@ $(function() {
|
|||
put_locale(svgCanvas);
|
||||
|
||||
try{
|
||||
json_encode = function(obj){
|
||||
//simple partial JSON encoder implementation
|
||||
if(window.JSON && JSON.stringify) return JSON.stringify(obj);
|
||||
var enc = arguments.callee; //for purposes of recursion
|
||||
if(typeof obj == "boolean" || typeof obj == "number"){
|
||||
return obj+'' //should work...
|
||||
}else if(typeof obj == "string"){
|
||||
//a large portion of this is stolen from Douglas Crockford's json2.js
|
||||
return '"'+
|
||||
obj.replace(
|
||||
/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g
|
||||
, function (a) {
|
||||
return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
|
||||
})
|
||||
+'"'; //note that this isn't quite as purtyful as the usualness
|
||||
}else if(obj.length){ //simple hackish test for arrayish-ness
|
||||
for(var i = 0; i < obj.length; i++){
|
||||
obj[i] = enc(obj[i]); //encode every sub-thingy on top
|
||||
}
|
||||
return "["+obj.join(",")+"]";
|
||||
}else{
|
||||
var pairs = []; //pairs will be stored here
|
||||
for(var k in obj){ //loop through thingys
|
||||
pairs.push(enc(k)+":"+enc(obj[k])); //key: value
|
||||
}
|
||||
return "{"+pairs.join(",")+"}" //wrap in the braces
|
||||
}
|
||||
}
|
||||
window.addEventListener("message", function(e){
|
||||
var cbid = parseInt(e.data.substr(0, e.data.indexOf(";")));
|
||||
try{
|
||||
e.source.postMessage(eval(e.data), e.origin);
|
||||
e.source.postMessage("SVGe"+cbid+";"+json_encode(eval(e.data)), e.origin);
|
||||
}catch(err){
|
||||
e.source.postMessage("error:"+err.message, e.origin);
|
||||
e.source.postMessage("SVGe"+cbid+";error:"+err.message, e.origin);
|
||||
}
|
||||
}, false)
|
||||
}catch(err){}
|
||||
|
|
|
|||
Loading…
Reference in New Issue