3c450c076a
- Add clipboard utility with fallback for non-secure contexts - Implement modern Clipboard API with document.execCommand fallback - Update copy buttons in code blocks, markdown, messages, and session list - Add proper error handling and user feedback for copy operations Fixes issue where copy buttons did not work in web browsers served over HTTP or without Clipboard API support
61 lines
1.8 KiB
TypeScript
61 lines
1.8 KiB
TypeScript
/**
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* Clipboard utility with fallback for non-secure contexts
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* The modern Clipboard API requires HTTPS or localhost, but document.execCommand
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* works in HTTP contexts as a fallback.
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*/
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import { getLogger } from "./logger"
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const log = getLogger("actions")
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/**
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* Copy text to clipboard with fallback for non-secure contexts
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* @param text - The text to copy
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* @returns Promise<boolean> - true if successful, false if failed
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*/
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export async function copyToClipboard(text: string): Promise<boolean> {
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try {
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// Try modern Clipboard API first (requires secure context)
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if (typeof navigator !== "undefined" && navigator.clipboard && navigator.clipboard.writeText) {
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await navigator.clipboard.writeText(text)
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log.info("Copied text using Clipboard API")
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return true
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}
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} catch (error) {
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log.warn("Clipboard API failed, trying fallback:", error)
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}
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// Fallback for non-secure contexts (HTTP) using document.execCommand
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try {
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if (typeof document === "undefined") {
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log.error("Document not available for clipboard fallback")
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return false
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}
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// Create temporary textarea element
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const textArea = document.createElement("textarea")
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textArea.value = text
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textArea.style.position = "fixed"
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textArea.style.left = "-9999px"
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textArea.style.top = "-9999px"
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textArea.style.opacity = "0"
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document.body.appendChild(textArea)
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textArea.focus()
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textArea.select()
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const success = document.execCommand("copy")
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document.body.removeChild(textArea)
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if (success) {
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log.info("Copied text using execCommand fallback")
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return true
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} else {
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log.error("execCommand copy failed")
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return false
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}
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} catch (error) {
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log.error("Clipboard fallback failed:", error)
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return false
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}
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} |