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saphidandClaude Opus 5.5
f0db805d4b
- Remove: collections and artwork clearing are best effort in Steam's JS, and the host carries on to delete the files when Steam isn't running (Android apps and devkit titles). - Devkit titles: the shortcut is found by devkit id, the saved id, or an executable/start folder inside the title's folder; never by display name. Steam's overviews don't carry devkit_gameid (checked on the Frame 2026-09-28), so 'list' now reads exe/start dir from app details. - Photo-based grid/wide/hero slots render as JPEG (a noise-heavy 3840x1240 hero was over 12 MiB as PNG on the Frame); the logo stays transparent PNG. Rendering gets 75 s and retries once with generated art. Each slot is cleared before it is set, since Steam keeps .png and .jpg side by side. - Devkit titles keep their own VR flag (vr=None skips SetShortcutIsVR) and their Sideloaded collection. - A failed title install's cleanup can't replace the original error. - refresh_art for devkit titles (frame_titles.refresh_art). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
34 lines
1.9 KiB
JavaScript
34 lines
1.9 KiB
JavaScript
// Synthetic canvas for API-path tests only. It emits transparent PNGs, not visual proof.
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const zlib = require('zlib');
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function crc(data) {
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let c=0xffffffff;
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for(const b of data) {c^=b;for(let i=0;i<8;i++)c=(c>>>1)^((c&1)?0xedb88320:0);}
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return (c^0xffffffff)>>>0;
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}
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function chunk(name,data) {
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const body=Buffer.concat([Buffer.from(name),data]), n=Buffer.alloc(4), sum=Buffer.alloc(4);
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n.writeUInt32BE(data.length);sum.writeUInt32BE(crc(body));return Buffer.concat([n,body,sum]);
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}
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function png(w,h) {
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const header=Buffer.alloc(13);header.writeUInt32BE(w);header.writeUInt32BE(h,4);header[8]=8;header[9]=6;
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return Buffer.concat([Buffer.from('89504e470d0a1a0a','hex'),chunk('IHDR',header),
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chunk('IDAT',zlib.deflateSync(Buffer.alloc((w*4+1)*h))),chunk('IEND',Buffer.alloc(0))]).toString('base64');
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}
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function surface() {
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const canvases=[];
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const document={fonts:{load:async()=>[]},createElement(tag) {
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if(tag!=='canvas')throw Error('unexpected element');
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const canvas={width:1,height:1,text:[],draws:0};
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const ctx={measureText:t=>({width:String(t).length*30}),fillText(t){canvas.text.push(t);},
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drawImage(){canvas.draws++;},getImageData:()=>({data:new Uint8ClampedArray(canvas.width*canvas.height*4)}),
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createLinearGradient:()=>({addColorStop(){}}),createRadialGradient:()=>({addColorStop(){}})};
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for(const method of ['save','restore','beginPath','rect','roundRect','clip','fillRect','putImageData','arc','fill','stroke'])ctx[method]=()=>{};
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canvas.getContext=()=>ctx;canvas.toDataURL=type=>type==='image/jpeg'?'data:image/jpeg;base64,'+Buffer.from('ffd8ffe000104a464946','hex').toString('base64'):
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'data:image/png;base64,'+png(canvas.width,canvas.height);
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canvases.push(canvas);return canvas;
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}};
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class Image {constructor(){this.width=2;this.height=2;} async decode(){if(this.src.includes('YmFk'))throw Error('bad image');}}
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return {document,Image,canvases};
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}
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module.exports={surface};
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