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Merge pull request #203 from JaredTherriault/main

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Add undo support to autocomplete
This commit is contained in:
pythongosssss
2024-03-24 16:41:40 +00:00
committed by GitHub
parent 96affb0a7e 11e019487e
commit a04fdbab82
1 changed files with 38 additions and 2 deletions
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web/js/common/autocomplete.js
+38 -2
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@@ -291,10 +291,46 @@ class TextAreaCaretHelper {
const startPos = this.el.selectionStart;
const endPos = this.el.selectionEnd;
this.el.value = this.el.value.substring(0, startPos + offset) + value + this.el.value.substring(endPos, this.el.value.length);
// Move selection to beginning of offset
this.el.selectionStart = this.el.selectionStart + offset;
// Using execCommand to support undo, but since it's officially
// 'deprecated' we need a backup solution, but it won't support undo :(
let pasted = true;
try {
if (!document.execCommand("insertText", false, value)) {
pasted = false;
}
} catch (e) {
console.error("Error caught during execCommand:", e);
pasted = false;
}
if (!pasted) {
console.error(
"execCommand unsuccessful; not supported. Adding text manually, no undo support.");
textarea.setRangeText(modifiedText, this.el.selectionStart, this.el.selectionEnd, 'end');
}
this.el.selectionEnd = this.el.selectionStart = startPos + value.length + offset + (finalOffset ?? 0);
} else {
this.el.value += value;
// Using execCommand to support undo, but since it's officially
// 'deprecated' we need a backup solution, but it won't support undo :(
let pasted = true;
try {
if (!document.execCommand("insertText", false, value)) {
pasted = false;
}
} catch (e) {
console.error("Error caught during execCommand:", e);
pasted = false;
}
if (!pasted) {
console.error(
"execCommand unsuccessful; not supported. Adding text manually, no undo support.");
this.el.value += value;
}
}
}
}