Allow WebView attachment document loads

2026-06-20 03:45:21 +08:00
parent 47bb6088df
commit ffb4ce404f
2 changed files with 8 additions and 2 deletions
@@ -39,6 +39,12 @@ final class AttachmentPreview {
        }
    }

+    static boolean isWebViewInternalDocumentUrl(String url) {
+        if (url == null) return false;
+        String value = url.trim().toLowerCase(java.util.Locale.ROOT);
+        return value.equals("about:blank") || value.startsWith("data:text/html");
+    }
+
    static String xmlPreviewDocument(String xml) {
        return "<!doctype html><html><head><meta charset=\"utf-8\">"
                + "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"
@@ -9572,11 +9572,11 @@ private class AttachmentPreviewWebViewClient(
    }

    override fun shouldInterceptRequest(view: WebView, request: WebResourceRequest): WebResourceResponse? {
-        val url = request.url?.toString().orEmpty()
-        return if (AttachmentPreview.isLocalPreviewUrl(url)) null else WebResourceResponse("text/plain", "UTF-8", null)
+        return null
    }

    private fun handleNavigation(url: String): Boolean {
+        if (AttachmentPreview.isWebViewInternalDocumentUrl(url)) return false
        if (AttachmentPreview.isLocalPreviewUrl(url)) return false
        openExternalUrl(context, url)
        return true