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fix: saveAs 优先，失败 fallback 直接下载

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先尝试弹出保存对话框（saveAs: true），如果和 Chrome 设置冲突
则 fallback 到直接下载到默认文件夹。兼容所有 Chrome 设置。
This commit is contained in:
李进
2026-07-27 15:16:33 +08:00
parent 20458d16ab
commit df699f1134
1 changed files with 6 additions and 1 deletions
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web-to-ppt/background.js
+5
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@@ -177,7 +177,12 @@ chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
const stored = await chrome.storage.session.get(['pptxBase64', 'pptxFilename']); const stored = await chrome.storage.session.get(['pptxBase64', 'pptxFilename']);
if (!stored.pptxBase64) throw new Error('没有待下载的数据'); if (!stored.pptxBase64) throw new Error('没有待下载的数据');
const dataUrl = 'data:application/vnd.openxmlformats-officedocument.presentationml.presentation;base64,' + stored.pptxBase64; const dataUrl = 'data:application/vnd.openxmlformats-officedocument.presentationml.presentation;base64,' + stored.pptxBase64;
// 先尝试弹出保存对话框，失败则直接下载到默认文件夹
try {
await chrome.downloads.download({ url: dataUrl, filename: stored.pptxFilename, saveAs: true });
} catch (e) {
await chrome.downloads.download({ url: dataUrl, filename: stored.pptxFilename }); await chrome.downloads.download({ url: dataUrl, filename: stored.pptxFilename });
}
await chrome.storage.session.remove(['pptxBase64', 'pptxFilename']); await chrome.storage.session.remove(['pptxBase64', 'pptxFilename']);
return { ok: true }; return { ok: true };
})() })()