mirror of
https://github.com/Termix-SSH/Termix.git
synced 2026-10-24 23:58:23 +00:00
131 lines
8.4 KiB
JavaScript
131 lines
8.4 KiB
JavaScript
const fs = require("node:fs");
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const path = require("node:path");
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// Run by `termix-plugin build` with TERMIX_PATCH_ROOT set to the plugin, so
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// the package resolves the way the plugin's bundle will resolve it.
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function packageDir(name) {
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const root = process.env.TERMIX_PATCH_ROOT || process.cwd();
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// Walked by hand: a package whose exports map hides package.json cannot be
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// found with require.resolve.
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for (let dir = path.resolve(root); ; dir = path.dirname(dir)) {
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const candidate = path.join(dir, "node_modules", name);
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if (fs.existsSync(path.join(candidate, "package.json"))) return candidate;
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if (path.dirname(dir) === dir) return path.join(root, "node_modules", name);
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}
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}
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const xtermDir = path.join(packageDir("@xterm/xterm"), "lib");
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// Backport the textarea-shrink fix from gmuxapp/xterm.js@6a011cf while
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// xtermjs/xterm.js#3600 remains unresolved upstream. Android IMEs can restart
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// composition on the previous word and replace it with a shorter value (for
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// example, Vietnamese "Hoar" -> "Hỏa"). xterm 6.0 otherwise emits nothing.
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//
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// Also fixes _handleAnyTextareaChanges, which iOS Safari/WKWebView drives
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// for ordinary typing (it reports keyCode 229 for all software-keyboard
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// input, not just IME composition). That handler diffs the textarea value
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// via `newValue.replace(oldValue, "")`, a literal substring removal. When
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// keystrokes arrive faster than the function's setTimeout(0) callback runs,
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// several overlapping callbacks each capture a stale oldValue, so the
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// literal-substring search fails to match and the diff silently comes back
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// empty - characters are dropped instead of sent. Swap in the same
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// common-prefix diff used for composition-end above so a stale oldValue
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// still yields the correct delta.
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const patches = [
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{
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file: "xterm.mjs",
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replacements: [
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[
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[
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'this._compositionPosition={start:0,end:0},this._dataAlreadySent=""',
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'this._compositionPosition={start:0,end:0},this._preCompositionValue="",this._dataAlreadySent=""',
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],
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'this._compositionPosition={start:0,end:0},this._preCompositionValue="",this._pendingTextareaValue=null,this._dataAlreadySent=""',
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],
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[
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'this._compositionPosition.start=this._textarea.value.length,this._compositionView.textContent=""',
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'this._compositionPosition.start=this._textarea.value.length,this._preCompositionValue=this._textarea.value,this._compositionView.textContent=""',
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],
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[
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"let e={start:this._compositionPosition.start,end:this._compositionPosition.end};this._isSendingComposition=!0",
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"let e={start:this._compositionPosition.start,end:this._compositionPosition.end};const s=this._preCompositionValue;this._isSendingComposition=!0",
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],
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[
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"e.start+=this._dataAlreadySent.length,this._isComposing?i=this._textarea.value.substring(e.start,this._compositionPosition.start):i=this._textarea.value.substring(e.start),i.length>0&&",
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"e.start+=this._dataAlreadySent.length;if(this._isComposing)i=this._textarea.value.substring(e.start,this._compositionPosition.start);else{const t=this._textarea.value;if(t.length<s.length){let e=0;const r=Math.min(t.length,s.length);for(;e<r&&t.charCodeAt(e)===s.charCodeAt(e);)e++;i=b.DEL.repeat(s.length-e)+t.substring(e)}else i=t.substring(e.start)}i.length>0&&",
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],
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[
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[
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'_handleAnyTextareaChanges(){let t=this._textarea.value;setTimeout(()=>{if(!this._isComposing){let e=this._textarea.value,i=e.replace(t,"");this._dataAlreadySent=i,e.length>t.length?this._coreService.triggerDataEvent(i,!0):e.length<t.length?this._coreService.triggerDataEvent(`${b.DEL}`,!0):e.length===t.length&&e!==t&&this._coreService.triggerDataEvent(e,!0)}},0)}',
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"_handleAnyTextareaChanges(){let t=this._textarea.value;setTimeout(()=>{if(!this._isComposing){let e=this._textarea.value,r=0;const n=Math.min(e.length,t.length);for(;r<n&&e.charCodeAt(r)===t.charCodeAt(r);)r++;let i=e.length<t.length?b.DEL.repeat(t.length-r)+e.substring(r):e.substring(r);this._dataAlreadySent=i,i.length>0&&this._coreService.triggerDataEvent(i,!0)}},0)}",
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],
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"_handleAnyTextareaChanges(){if(this._pendingTextareaValue!==null)return;this._pendingTextareaValue=this._textarea.value,setTimeout(()=>{const t=this._pendingTextareaValue;this._pendingTextareaValue=null;if(!this._isComposing){let e=this._textarea.value,r=0;const n=Math.min(e.length,t.length);for(;r<n&&e.charCodeAt(r)===t.charCodeAt(r);)r++;let i=e.length<t.length?b.DEL.repeat(t.length-r)+e.substring(r):e.substring(r);this._dataAlreadySent=i,i.length>0&&this._coreService.triggerDataEvent(i,!0)}},0)}",
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],
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],
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},
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{
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file: "xterm.js",
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replacements: [
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[
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[
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'this._compositionPosition={start:0,end:0},this._dataAlreadySent=""',
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'this._compositionPosition={start:0,end:0},this._preCompositionValue="",this._dataAlreadySent=""',
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],
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'this._compositionPosition={start:0,end:0},this._preCompositionValue="",this._pendingTextareaValue=null,this._dataAlreadySent=""',
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],
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[
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'this._compositionPosition.start=this._textarea.value.length,this._compositionView.textContent=""',
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'this._compositionPosition.start=this._textarea.value.length,this._preCompositionValue=this._textarea.value,this._compositionView.textContent=""',
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],
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[
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"const e={start:this._compositionPosition.start,end:this._compositionPosition.end};this._isSendingComposition=!0",
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"const e={start:this._compositionPosition.start,end:this._compositionPosition.end},i=this._preCompositionValue;this._isSendingComposition=!0",
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],
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[
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"e.start+=this._dataAlreadySent.length,t=this._isComposing?this._textarea.value.substring(e.start,this._compositionPosition.start):this._textarea.value.substring(e.start),t.length>0&&",
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"e.start+=this._dataAlreadySent.length;this._isComposing?t=this._textarea.value.substring(e.start,this._compositionPosition.start):(()=>{const s=this._textarea.value;if(s.length<i.length){let e=0;const r=Math.min(s.length,i.length);for(;e<r&&s.charCodeAt(e)===i.charCodeAt(e);)e++;t=a.C0.DEL.repeat(i.length-e)+s.substring(e)}else t=s.substring(e.start)})(),t.length>0&&",
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],
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[
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[
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'_handleAnyTextareaChanges(){const e=this._textarea.value;setTimeout((()=>{if(!this._isComposing){const t=this._textarea.value,i=t.replace(e,"");this._dataAlreadySent=i,t.length>e.length?this._coreService.triggerDataEvent(i,!0):t.length<e.length?this._coreService.triggerDataEvent(`${a.C0.DEL}`,!0):t.length===e.length&&t!==e&&this._coreService.triggerDataEvent(t,!0)}}),0)}',
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"_handleAnyTextareaChanges(){const e=this._textarea.value;setTimeout((()=>{if(!this._isComposing){const t=this._textarea.value;let r=0;const n=Math.min(t.length,e.length);for(;r<n&&t.charCodeAt(r)===e.charCodeAt(r);)r++;const i=t.length<e.length?a.C0.DEL.repeat(e.length-r)+t.substring(r):t.substring(r);this._dataAlreadySent=i,i.length>0&&this._coreService.triggerDataEvent(i,!0)}}),0)}",
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],
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"_handleAnyTextareaChanges(){if(this._pendingTextareaValue!==null)return;this._pendingTextareaValue=this._textarea.value,setTimeout((()=>{const e=this._pendingTextareaValue;this._pendingTextareaValue=null;if(!this._isComposing){const t=this._textarea.value;let r=0;const n=Math.min(t.length,e.length);for(;r<n&&t.charCodeAt(r)===e.charCodeAt(r);)r++;const i=t.length<e.length?a.C0.DEL.repeat(e.length-r)+t.substring(r):t.substring(r);this._dataAlreadySent=i,i.length>0&&this._coreService.triggerDataEvent(i,!0)}}),0)}",
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],
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],
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},
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];
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for (const { file, replacements } of patches) {
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const filePath = path.join(xtermDir, file);
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if (!fs.existsSync(filePath)) {
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throw new Error(`[patch-xterm-android-ime] Missing ${filePath}`);
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}
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let source = fs.readFileSync(filePath, "utf8");
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let changed = false;
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for (const [original, patched] of replacements) {
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if (source.includes(patched)) {
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continue;
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}
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const originals = Array.isArray(original) ? original : [original];
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const matched = originals.find((candidate) => source.includes(candidate));
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if (!matched) {
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throw new Error(
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`[patch-xterm-android-ime] Expected source not found in ${file}`,
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);
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}
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source = source.replace(matched, patched);
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changed = true;
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}
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if (!changed) {
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console.log(`[patch-xterm-android-ime] ${file} already patched`);
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continue;
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}
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fs.writeFileSync(filePath, source);
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console.log(`[patch-xterm-android-ime] Patched ${file}`);
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}
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