kdletters
b03c910f49
H5 复制服务在 native_app 中优先调用 clipboard.writeText 保留浏览器 Clipboard API 与 legacy selection copy 回退路径 补充 HostBridge 剪贴板测试和宿主壳能力文档
60 lines
1.4 KiB
TypeScript
60 lines
1.4 KiB
TypeScript
import { writeHostClipboardText } from './host-bridge/hostBridge';
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export async function copyTextToClipboard(value: string) {
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const text = value.trim();
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if (!text) {
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return false;
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}
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if (await writeHostClipboardText({ text })) {
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return true;
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}
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if (typeof navigator !== 'undefined' && navigator.clipboard?.writeText) {
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try {
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await navigator.clipboard.writeText(text);
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return true;
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} catch {
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// 部分内嵌浏览器会暴露 Clipboard API，但会因权限上下文拒绝写入，继续走兼容路径。
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}
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}
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if (typeof document === 'undefined') {
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return false;
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}
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const textarea = document.createElement('textarea');
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textarea.value = text;
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textarea.setAttribute('readonly', 'true');
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textarea.style.position = 'fixed';
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textarea.style.left = '-9999px';
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textarea.style.top = '0';
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document.body.appendChild(textarea);
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const selection = document.getSelection();
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const selectedRange =
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selection && selection.rangeCount > 0 ? selection.getRangeAt(0) : null;
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textarea.focus();
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textarea.select();
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let copied = false;
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try {
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copied =
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typeof document.execCommand === 'function' &&
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document.execCommand('copy');
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} catch {
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copied = false;
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} finally {
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document.body.removeChild(textarea);
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if (selection) {
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selection.removeAllRanges();
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if (selectedRange) {
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selection.addRange(selectedRange);
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}
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}
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}
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return copied;
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}
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