mirror of
https://gitflic.ru/project/photopea-v2/photopea-v-2.git
synced 2025-08-17 17:06:21 +00:00
267 lines
8.8 KiB
HTML
267 lines
8.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<script>
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var lastMsg, allowed=false, dir=null;
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var locStor = {};
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function go() {
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console.log("deviceStorage");
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var free = false;
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window.addEventListener("message", onMessage,false);
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var idb = { req: window["indexedDB"].open("deviceStorage") };
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idb.req["onupgradeneeded"] = function(e) {
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//console.log("onupgradeneeded");
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var db = e.target.result;
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var os = db["createObjectStore"]("rsrc", { "keyPath": "k" });
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}
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idb.req["onsuccess"] = function(e) {
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var db = locStor.db = e.target.result; //console.log(db);
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var os = db["transaction"](["rsrc"], "readwrite")["objectStore"]("rsrc");
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var req = os["get"]("fs0");
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req["onsuccess"] = function(e) {
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if(e.target.result) {
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if(localStorage.getItem("forget")=="1") {
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localStorage.removeItem("forget");
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}
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else {
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locStor.fset = e.target.result["fset"];
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//console.log(locStor.fset);
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dir = locStor.fset;
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}
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//allowed=true; send("ready",true);
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}
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};
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}
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allowed=false; send("ready",false);
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//allowed = free;
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}
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async function makeFolder(path) {
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path = __getPath(path); //console.log(path);
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var fld = dir; for(var i=0; i<path.length-1; i++) fld = await fld.getDirectoryHandle(path[i]);
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var dirHandle = await fld.getDirectoryHandle(path[path.length-1], { create: true });
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send("0","");
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}
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async function deleteFile(path) {
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path = __getPath(path); //console.log(path);
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var fld = dir; for(var i=0; i<path.length-1; i++) fld = await fld.getDirectoryHandle(path[i]);
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await fld.removeEntry(path[path.length-1], { recursive: true });
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send("0","");
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}
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async function saveFile (path, buff) {
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path = __getPath(path); //console.log(path);
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var fld = dir; for(var i=0; i<path.length-1; i++) fld = await fld.getDirectoryHandle(path[i]);
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var han = await fld.getFileHandle(path[path.length-1],{create:true});
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var wrt = await han.createWritable();//;.then(function(e) {e.write(buff); return e;}).then(function(e) {e.close()});
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await wrt.write(buff);
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await wrt.close();
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send("0","");
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}
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async function printFile(path) {
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path = __getPath(path); //console.log(path);
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var fld = dir; for(var i=0; i<path.length-1; i++) fld = await fld.getDirectoryHandle(path[i]);
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var han = await fld.getFileHandle(path[path.length-1]);
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var fil = await han.getFile();
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var buf = await fil.arrayBuffer();
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window.parent.postMessage(buf,"*");
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}
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var fmap,left,fls, gtime, timg;
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async function printFolder(path) {
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path = __getPath(path); //console.log(path);
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var fld = dir; for(var i=0; i<path.length; i++) fld = await fld.getDirectoryHandle(path[i]);
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fls = []; fmap={}; left=0; timg=0; gtime=Date.now();
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var time = Date.now(), cnt=0, gotFile=false;
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for await (var entry of fld.values()) {
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var file = [entry.name,-1]; fls.push(file);
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//if(entry.kind=="file--") { file[1]=100; file.push(0); }
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if(entry.kind=="file") {
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gotFile=true;
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fmap[entry.name]=fls.length-1; left++;
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entry.getFile().then(fileLoaded);
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//var fil = await entry.getFile(); makeFile(fil, file);
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}
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}
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if(!gotFile) send("0",fls);
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}
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async function fileLoaded(fil) {
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file = fls[fmap[fil.name]];
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await makeFile(fil,file); left--;
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if(left==0) {
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console.log(Date.now()-gtime, timg);
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send("0",fls);
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}
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}
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async function makeFile(fil, file) {
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var np = fil.name.split("."), ext = (np.length==1 ? "" : np.pop()).toLowerCase();
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file[1]=fil.size;
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file.push(~~(fil.lastModified/1000)); //return;
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if(ext=="jpeg") ext="jpg";
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if(ext=="tiff") ext="tif";
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if(["dng","cr2","nef","arw","3fr","fff","gpr"].indexOf(ext)!=-1) ext="tif";
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var thmb=null;
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if(thmb==null && (ext=="jpg" || ext=="tif")) { // || ext=="--psd"
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var lim = 130000;
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var buf = await fil.slice(0,(lim*1.5>fil.size) ? fil.size : lim).arrayBuffer();
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if(ext=="jpg" && buf.byteLength==fil.size) thmb = bufToUrl(buf, "jpg");
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else thmb=findJPG(fil.name,buf);
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}
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//*
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if(thmb==null && (ext=="psd" || ext=="psb")) {
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var buf = await fil.slice(0,4096).arrayBuffer();
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buf = new Uint8Array(buf); //console.log(buf);
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var off = 26;
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var clen = readUint(buf,off); off+=4; //console.log(clen);
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off+=clen;
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var rlen = readUint(buf,off); off+=4; //console.log(rlen);
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if(off+rlen<=4096) buf=buf.slice(off,off+rlen);
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else buf = new Uint8Array(await fil.slice(off,off+rlen).arrayBuffer());
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off = 0;
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while(off<buf.length) {
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var sign = readASCII(buf,off,4); off+=4;
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var resID = readUshort(buf,off); off+=2;
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var sz = buf[off];
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off+=sz+(1-(sz&1))+1;
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var asiz = readUint(buf,off); off+=4;
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if(resID==1036) {
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//console.log(off, rlen);
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var tsz = readUint(buf,off+20);
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var io = off+28; //console.log(buf.slice(io,io+tsz));
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thmb = bufToUrl(buf.slice(io,io+tsz).buffer,"jpg");
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break;
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}
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off+=asiz+(asiz&1);
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}
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}//*/
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if(thmb==null && fil.size<100000 && ["png","svg","bmp","gif","webp"].indexOf(ext)!=-1) {
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var buf = await fil.arrayBuffer();
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if(ext=="png") {
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var data=new Uint8Array(buf), off=16;
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var bf = new Uint8Array(4), dim=[];
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for(var i=0; i<2; i++) {
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for(var j=0; j<4; j++) bf[j] = data[off+3-j];
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dim.push((new Uint32Array(bf.buffer))[0]);
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}
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if(dim[0]*dim[1]<1e6) thmb=bufToUrl(buf,ext);
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}
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else thmb=bufToUrl(buf,ext);
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}
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if(thmb) { file.push(thmb); timg++; }
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}
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function findJPG(name, buf) {
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buf = new Uint8Array(buf); //console.log(buf);
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var d8=-1, d9=-1, end=buf.length-1;
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var ints = [];
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for(var i=2; i<end; i++) {
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if(buf[i]==255) {
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var b1=buf[i+1], b2=buf[i+2], b3 = buf[i+3];
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//if(b1==0xd8 && b2==0xff) console.log(name);
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if (d8==-1 && b1==0xd8 && b2==0xff) d8=i;
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else if(d8!=-1 && b1==0xd9) { d9=i; ints.push(d8,d9); d8=d9=-1; }
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}
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}
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if(ints.length!=0) {
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d8=ints[0]; d9=ints[1];
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return bufToUrl(buf.slice(d8, d9+2).buffer, "jpg");
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}
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}
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var u8 = new Uint8Array(4);
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var u16 = new Uint16Array(u8.buffer);
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var u32 = new Uint32Array(u8.buffer);
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function readASCII (b, o, l) { var out=""; for(var i=0; i<l; i++) out+=String.fromCharCode(b[o+i]); return out; }
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function readUshort(b, o) { u8[0]=b[o+1]; u8[1]=b[o]; return u16[0]; }
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function readUint (b, o) { u8[0]=b[o+3]; u8[1]=b[o+2]; u8[2]=b[o+1]; u8[3]=b[o]; return u32[0]; }
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function bufToUrl(buf, ext) {
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var str=[]; buf=new Uint8Array(buf);
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for(var i=0; i<buf.length; i++) str.push(String.fromCharCode(buf[i]));
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return "data:image/"+ext+(ext=="svg"?"+xml":"")+";base64,"+btoa(str.join(""))
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}
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async function askPermissions() {
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if(dir) {
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if(await dir.requestPermission({mode:"readwrite"})!="granted") return;
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}
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else {
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dir = await window.showDirectoryPicker();
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locStor.fset = dir;
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var os = locStor.db["transaction"](["rsrc"], "readwrite")["objectStore"]("rsrc");
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var ooo=os["put"]({ "k":"fs0", "fset":locStor.fset });
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ooo.onerror = function(e) { console.log(e); alert("Storing failed. Browser says: "+e["target"]["error"]["message"],7000); }
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}
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allowed = true; printFolder("/");
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}
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function onMessage(e) {
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if((typeof e.data) == "string") {
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//console.log(e.data);
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if(window.showDirectoryPicker==null) { send("1","Your browser can not perform this feature."); return; }
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var msg = null;
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try { msg = JSON.parse(e.data); } catch(e) { return; }
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if(msg.code==null) return;
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if(!allowed) { askPermissions(); return; }
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if(msg.code=="show") {
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printFolder(msg.prm);
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}
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else if(msg.code=="load") {
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printFile(msg.prm);
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}
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else if(msg.code=="delete") {
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deleteFile(msg.prm);
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}
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else if(msg.code=="save" && msg.prm.endsWith("/")) makeFolder(msg.prm.slice(0,-1)); // making a folder
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else if(msg.code=="forget") { console.log("forget message"); localStorage.setItem("forget", "1"); send("0",""); }
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else if(msg.code=="rename") {
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send("1","We can not rename files in your coputer yet.");
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}
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lastMsg=msg;
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}
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else {
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if(lastMsg.code=="save") saveFile(lastMsg.prm, e.data);
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}
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}
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function __getPath(path) {
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var pth = []; if(path.length>1) pth=path.slice(1).split("/");
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return pth;
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}
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function send(code,prm) {
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var time = Date.now();
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var str = JSON.stringify({"code":code, "prm":prm});
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//console.log("json", Date.now()-time, str.length);
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window.parent.postMessage(str,"*");
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}
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</script>
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</head>
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<body onload="go()"></body>
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</html> |