From 1814320b35feaf42ead1b9bc2958c1d82bcb945b Mon Sep 17 00:00:00 2001
From: "nhotta%netscape.com" <nhotta%netscape.com>
Date: Thu, 28 Jan 1999 00:24:18 +0000
Subject: [PATCH] Changed to call WinAPI for date time format.

---
 .../src/windows/nsDateTimeFormatWin.cpp       | 126 +++++++++++++++---
 intl/locale/src/windows/nsDateTimeFormatWin.h |   1 +
 2 files changed, 107 insertions(+), 20 deletions(-)

diff --git a/intl/locale/src/windows/nsDateTimeFormatWin.cpp b/intl/locale/src/windows/nsDateTimeFormatWin.cpp
index 705f28ff27ad..3e9f79555e36 100644
--- a/intl/locale/src/windows/nsDateTimeFormatWin.cpp
+++ b/intl/locale/src/windows/nsDateTimeFormatWin.cpp
@@ -18,6 +18,9 @@
 
 #include "nsDateTimeFormatWin.h"
 
+
+#define NSDATETIMEFORMAT_BUFFER_LEN  80
+
 NS_DEFINE_IID(kIDateTimeFormatIID, NS_IDATETIMEFORMAT_IID);
 
 NS_IMPL_ISUPPORTS(nsDateTimeFormatWin, kIDateTimeFormatIID);
@@ -29,20 +32,7 @@ nsresult nsDateTimeFormatWin::FormatTime(const nsString& locale,
                                       PRUnichar *stringOut, 
                                       PRUint32 *outLen)
 {
-  // Temporary implementation, real implementation to be done by FE.
-  //
-
-  struct tm *today;
-  char *str;
-
-  today = localtime( &timetTime );
-  str = asctime(today);
-
-  nsString aString(str);
-  *outLen = aString.Length();
-  memcpy((void *) stringOut, (void *) aString.GetUnicode(), aString.Length() * sizeof(PRUnichar));
-
-  return NS_OK;
+  return FormatTMTime(locale, dateFormatSelector, timeFormatSelector, localtime( &timetTime ), stringOut, outLen);
 }
 
 // performs a locale sensitive date formatting operation on the struct tm parameter
@@ -54,14 +44,110 @@ nsresult nsDateTimeFormatWin::FormatTMTime(const nsString& locale,
                                         PRUnichar *stringOut, 
                                         PRUint32 *outLen)
 {
-  // Temporary implementation, real implementation to be done by FE.
-  //
+	SYSTEMTIME system_time;
+  DWORD dwFlags_Date = 0, dwFlags_Time = 0;
+  int dateLen, timeLen;
+  PRUnichar dateBuffer[NSDATETIMEFORMAT_BUFFER_LEN], timeBuffer[NSDATETIMEFORMAT_BUFFER_LEN];
 
-  char *str = asctime(tmTime);
+  // Map tm to SYSTEMTIME
+	system_time.wYear = 1900 + tmTime->tm_year;
+	system_time.wMonth = tmTime->tm_mon + 1;
+	system_time.wDayOfWeek = tmTime->tm_wday;
+	system_time.wDay = tmTime->tm_mday;
+	system_time.wHour = tmTime->tm_hour;
+	system_time.wMinute = tmTime->tm_min;
+	system_time.wSecond = tmTime->tm_sec;
+	system_time.wMilliseconds = 0;
 
-  nsString aString(str);
-  *outLen = aString.Length();
-  memcpy((void *) stringOut, (void *) aString.GetUnicode(), aString.Length() * sizeof(PRUnichar));
+  // Map to WinAPI date format
+  switch (dateFormatSelector) {
+  case kDateFormatLong:
+    dwFlags_Date = DATE_LONGDATE;
+    break;
+  case kDateFormatShort:
+    dwFlags_Date = DATE_SHORTDATE;
+    break;
+  case kDateFormatWeekday:
+    dwFlags_Date = 0;
+    break;
+  case kDateFormatYearMonth:
+    dwFlags_Date = 0;     // TODO:only availabe NT5
+    break;
+  }
+
+  // Map to WinAPI time format
+  switch (timeFormatSelector) {
+  case kTimeFormatSeconds:
+    dwFlags_Time = 0;
+    break;
+  case kTimeFormatNoSeconds:
+    dwFlags_Time = TIME_NOSECONDS;
+    break;
+  case kTimeFormatSecondsForce24Hour:
+    dwFlags_Time = TIME_FORCE24HOURFORMAT;
+    break;
+  case kTimeFormatNoSecondsForce24Hour:
+    dwFlags_Time = TIME_NOSECONDS + TIME_FORCE24HOURFORMAT;
+    break;
+  }
+
+  // Call GetDateFormatW
+  if (dateFormatSelector == kDateFormatNone) {
+    dateLen = 0;
+  }
+  else {
+    if (dateFormatSelector == kDateFormatYearMonth) {
+      dateLen = GetDateFormatW(GetUserDefaultLCID(), 0, &system_time, L"yy/MM", 
+                               dateBuffer, NSDATETIMEFORMAT_BUFFER_LEN);
+    }
+    else if (dateFormatSelector == kDateFormatWeekday) {
+      dateLen = GetDateFormatW(GetUserDefaultLCID(), 0, &system_time, L"ddd", 
+                               dateBuffer, NSDATETIMEFORMAT_BUFFER_LEN);
+    }
+    else {
+      dateLen = GetDateFormatW(GetUserDefaultLCID(), dwFlags_Date, &system_time, NULL, 
+                               dateBuffer, NSDATETIMEFORMAT_BUFFER_LEN);
+    }
+    if (dateLen != 0) {
+      dateLen--;  // Since the count includes the terminating null.
+    }
+  }
+
+  // Call GetTimeFormatW
+  if (timeFormatSelector == kTimeFormatNone) {
+    timeLen = 0;
+  }
+  else {
+    timeLen = GetTimeFormatW(GetUserDefaultLCID(), dwFlags_Time, &system_time, NULL, 
+                        timeBuffer, NSDATETIMEFORMAT_BUFFER_LEN);
+    if (timeLen != 0) {
+      timeLen--;  // Since the count includes the terminating null.
+    }
+  }
+
+  NS_ASSERTION(NSDATETIMEFORMAT_BUFFER_LEN >= (PRUint32) (dateLen + 1), "internal date buffer is not large enough");
+  NS_ASSERTION(NSDATETIMEFORMAT_BUFFER_LEN >= (PRUint32) (timeLen + 1), "internal time buffer is not large enough");
+  NS_ASSERTION(*outLen >= (PRUint32) (dateLen + timeLen + 1 + 1), "input buffer is not large enough");
+
+  // Copy the result
+  stringOut[0] = 0;
+  if (dateLen != 0 && timeLen != 0) {
+    (void) wcscpy((wchar_t *) stringOut, (const wchar_t *) dateBuffer);
+    (void) wcscat((wchar_t *) stringOut, (const wchar_t *) L" ");
+    (void) wcscat((wchar_t *) stringOut, (const wchar_t *) timeBuffer);
+    *outLen = dateLen + timeLen + 1;
+  }
+  else if (timeLen == 0) {
+    (void) wcscpy((wchar_t *) stringOut, (const wchar_t *) dateBuffer);
+    *outLen = dateLen;
+  }
+  else if (dateLen == 0) {
+    (void) wcscpy((wchar_t *) stringOut, (const wchar_t *) timeBuffer);
+    *outLen = timeLen;
+  }
+  else {
+    *outLen = 0;
+  }
 
   return NS_OK;
 }
diff --git a/intl/locale/src/windows/nsDateTimeFormatWin.h b/intl/locale/src/windows/nsDateTimeFormatWin.h
index 76bed5c9d69b..6f97c0f47b64 100644
--- a/intl/locale/src/windows/nsDateTimeFormatWin.h
+++ b/intl/locale/src/windows/nsDateTimeFormatWin.h
@@ -21,6 +21,7 @@
 
 
 #include "nsIDateTimeFormat.h"
+#include <windows.h>
 
 
 class nsDateTimeFormatWin : public nsIDateTimeFormat {