X-Git-Url: https://git.decadent.org.uk/gitweb/?p=videolink.git;a=blobdiff_plain;f=null_prompt_service.cpp;h=878f7ff268f71057127e1f997287ad0b024d0077;hp=c1d24be55a6ef3da5880c49ad6f7e1e14c6a9ca3;hb=c5f98ff303d670f72a5d491a5f4e1989d2043219;hpb=80da930b8321600a81d3d9ae39ff4b27def501c3

diff --git a/null_prompt_service.cpp b/null_prompt_service.cpp
index c1d24be..878f7ff 100644
--- a/null_prompt_service.cpp
+++ b/null_prompt_service.cpp
@@ -1,11 +1,19 @@
-// Copyright 2006 Ben Hutchings <ben@decadentplace.org.uk>.
+// Copyright 2006 Ben Hutchings <ben@decadent.org.uk>.
 // See the file "COPYING" for licence details.
 
+#include <string>
+
+#include <langinfo.h>
+
 #include <nsCOMPtr.h>
+#include <nsICharsetConverterManager.h>
 #include <nsIComponentManager.h>
 #include <nsIFactory.h>
+#include <nsIServiceManagerUtils.h>
+#include <nsIUnicodeEncoder.h>
 
 #include "null_prompt_service.hpp"
+#include "webdvd.hpp"
 #include "xpcom_support.hpp"
 
 using xpcom_support::check;
@@ -43,20 +51,67 @@ namespace
     {
 	return NS_ERROR_NOT_IMPLEMENTED;
     }
+
+    std::string native_error_string(const PRUnichar * text)
+    {
+	std::string result;
+	PRInt32 text_len = 0;
+	while (text[text_len])
+	    ++text_len;
+
+	nsCOMPtr<nsICharsetConverterManager> conv_manager;
+	nsCOMPtr<nsIUnicodeEncoder> encoder;
+	static const nsCID charset_converter_manager_cid =
+	    NS_ICHARSETCONVERTERMANAGER_CID;
+	if (NS_SUCCEEDED(CallGetService<nsICharsetConverterManager>(
+			     charset_converter_manager_cid,
+			     getter_AddRefs(conv_manager)))
+	    && NS_SUCCEEDED(conv_manager->GetUnicodeEncoder(
+				nl_langinfo(CODESET),
+				getter_AddRefs(encoder))))
+	{
+	    encoder->SetOutputErrorBehavior(
+		nsIUnicodeEncoder::kOnError_Replace, NULL, PRUnichar('?'));
+
+	    char buf[1000];  // Hopefully long enough for an error message
+
+	    char * out = buf;
+	    PRInt32 out_len = sizeof(buf);
+	    encoder->Convert(text, &text_len, out, &out_len);
+	    out += out_len;
+
+	    out_len = sizeof(buf) - out_len;
+	    encoder->Finish(out, &out_len);
+	    out += out_len;
+
+	    result.assign(buf, out);
+	}
+	else
+	{
+	    // Convert to ASCII
+	    result.resize(text_len);
+	    for (PRInt32 i = 0; i != text_len; ++i)
+		result[i] = (text[i] < 0x80) ? text[i] : '?';
+	}
+
+	return result;
+    }
 }
 
 NS_IMPL_ISUPPORTS1(null_prompt_service, nsIPromptService)
 
 NS_IMETHODIMP null_prompt_service::Alert(
-    nsIDOMWindow *, const PRUnichar *, const PRUnichar *)
+    nsIDOMWindow *, const PRUnichar *, const PRUnichar * text)
 {
+    fatal_error(native_error_string(text));
     return NS_OK;
 }
 
 NS_IMETHODIMP null_prompt_service::AlertCheck(
-    nsIDOMWindow *, const PRUnichar *, const PRUnichar *, const PRUnichar *,
-    PRBool *)
+    nsIDOMWindow *, const PRUnichar *, const PRUnichar * text,
+    const PRUnichar *, PRBool *)
 {
+    fatal_error(native_error_string(text));
     return NS_OK;
 }