退格键

2025-01-16 06:21:14 +08:00 · 2025-01-16 06:21:14 +08:00 · b70a082307
commit b70a082307
parent 5bb61de760
1 changed files with 8 additions and 0 deletions
--- a/cursor.js
+++ b/cursor.js
@ -100,6 +100,14 @@ export class Cursor {
            this.insertIndex = Math.max(0, Math.min(this.targetNode.textContent.length, this.insertIndex + 1))
            return this.updatePosition(this.getBoundingClientRect())
        }
+        if (key === "Backspace") {
+            const text = this.targetNode.textContent
+            const left = text.slice(0, Math.max(0, this.insertIndex - 1))
+            const right = text.slice(this.insertIndex)
+            this.targetNode.textContent = left + right
+            this.insertIndex = Math.max(0, this.insertIndex - 1)
+            return this.updatePosition(this.getBoundingClientRect())
+        }
    }
 }