From f532bbd7af98d2cb543bf86b93b0e0e9fa1e9b2a Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Sat, 21 May 2022 09:18:08 +0000
Subject: Issue #1210 - Simplify the implementation of mozILocaleService.

Combine both GetAppLocale methods and Update
mozILocaleService.getAppLocales to avoid use of jsapi.
---
 intl/locale/LocaleService.cpp     | 33 ++++++++++-----------------------
 intl/locale/LocaleService.h       | 25 ++++---------------------
 intl/locale/mozILocaleService.idl | 31 +++++++++++++++++++++++++++++--
 3 files changed, 43 insertions(+), 46 deletions(-)

diff --git a/intl/locale/LocaleService.cpp b/intl/locale/LocaleService.cpp
index 2d3429d688..7a84ae2449 100644
--- a/intl/locale/LocaleService.cpp
+++ b/intl/locale/LocaleService.cpp
@@ -5,7 +5,6 @@
 
 #include "LocaleService.h"
 
-#include "jsapi.h"
 #include "mozilla/ClearOnShutdown.h"
 #include "mozilla/Services.h"
 #include "nsIObserverService.h"
@@ -60,15 +59,6 @@ LocaleService::GetAppLocales(nsTArray<nsCString>& aRetVal)
   aRetVal = mAppLocales;
 }
 
-void
-LocaleService::GetAppLocale(nsACString& aRetVal)
-{
-  if (mAppLocales.IsEmpty()) {
-    ReadAppLocales(mAppLocales);
-  }
-  aRetVal = mAppLocales[0];
-}
-
 void
 LocaleService::Refresh()
 {
@@ -88,31 +78,28 @@ LocaleService::Refresh()
  * mozILocaleService methods
  */
 NS_IMETHODIMP
-LocaleService::GetAppLocales(JSContext* aCtx, JS::MutableHandleValue aRetVal)
+LocaleService::GetAppLocales(uint32_t* aCount, char*** aOutArray)
 {
   if (mAppLocales.IsEmpty()) {
     ReadAppLocales(mAppLocales);
   }
 
-  uint32_t appLocalesNum = mAppLocales.Length();
-
-  JS::RootedObject locales(aCtx, JS_NewArrayObject(aCtx, appLocalesNum));
-  JS::Rooted<JS::Value> value(aCtx);
+  *aCount = mAppLocales.Length();
+  *aOutArray = static_cast<char**>(moz_xmalloc(*aCount * sizeof(char*)));
 
-  for (size_t i = 0; i < appLocalesNum; i++) {
-    const nsCString& loc = mAppLocales[i];
-    JSString* str = JS_NewStringCopyN(aCtx, loc.get(), loc.Length());
-    value.setString(str);
-    JS_DefineElement(aCtx, locales, i, value, JSPROP_ENUMERATE);
+  for (uint32_t i = 0; i < *aCount; i++) {
+    (*aOutArray)[i] = moz_xstrdup(mAppLocales[i].get());
   }
 
-  aRetVal.setObject(*locales);
   return NS_OK;
 }
 
 NS_IMETHODIMP
-LocaleService::GetAppLocale(JSContext* aCtx, nsACString& aRetVal)
+LocaleService::GetAppLocale(nsACString& aRetVal)
 {
-  GetAppLocale(aRetVal);
+  if (mAppLocales.IsEmpty()) {
+    ReadAppLocales(mAppLocales);
+  }
+  aRetVal = mAppLocales[0];
   return NS_OK;
 }
\ No newline at end of file
diff --git a/intl/locale/LocaleService.h b/intl/locale/LocaleService.h
index 42f6c48167..e41e3c8d1e 100644
--- a/intl/locale/LocaleService.h
+++ b/intl/locale/LocaleService.h
@@ -58,29 +58,12 @@ public:
    * Example: ["en-US", "de", "pl", "sr-Cyrl", "zh-Hans-HK"]
    *
    * Usage:
-   * nsTArray<nsCString> appLocales;
-   * LocaleService::GetInstance()->GetAppLocales(appLocales);
-   */
-  void GetAppLocales(nsTArray<nsCString>& aRetVal);
-
-  /**
-   * Returns the best locale that the application should be localized to.
-   *
-   * The result is a valid locale IDs and it should be
-   * used for all APIs that do not handle language negotiation.
+   *   nsTArray<nsCString> appLocales;
+   *   LocaleService::GetInstance()->GetAppLocales(appLocales);
    *
-   * Where possible, GetAppLocales should be preferred over this API and
-   * all callsites should handle some form of "best effort" language
-   * negotiation to respect user preferences in case the use case does
-   * not have data for the first locale in the list.
-   *
-   * Example: "zh-Hans-HK"
-   *
-   * Usage:
-   * nsAutoCString appLocale;
-   * LocaleService::GetInstance()->GetAppLocale(appLocale);
+   * (See mozILocaleService.idl for a JS-callable version of this.)
    */
-  void GetAppLocale(nsACString& aRetVal);
+  void GetAppLocales(nsTArray<nsCString>& aRetVal);
 
   /**
    * Triggers a refresh of the language negotiation process.
diff --git a/intl/locale/mozILocaleService.idl b/intl/locale/mozILocaleService.idl
index 9e517bcb70..297ae7c063 100644
--- a/intl/locale/mozILocaleService.idl
+++ b/intl/locale/mozILocaleService.idl
@@ -16,6 +16,33 @@
 [scriptable, uuid(C27F8983-B48B-4D1A-92D7-FEB8106F212D)]
 interface mozILocaleService : nsISupports
 {
-  [implicit_jscontext] jsval getAppLocales();
-  [implicit_jscontext] ACString getAppLocale();
+  /**
+   * Returns a list of locales that the application should be localized to.
+   *
+   * The result is a sorted list of valid locale IDs and it should be
+   * used for all APIs that accept list of locales, like ECMA402 and L10n APIs.
+   *
+   * This API always returns at least one locale.
+   *
+   * Example: ["en-US", "de", "pl", "sr-Cyrl", "zh-Hans-HK"]
+   *
+   * (See LocaleService.h for a more C++-friendly version of this.)
+   */
+  void getAppLocales([optional] out unsigned long aCount,
+                     [retval, array, size_is(aCount)] out string aLocales);
+
+  /**
+   * Returns the best locale that the application should be localized to.
+   *
+   * The result is a valid locale ID and it should be
+   * used for all APIs that do not handle language negotiation.
+   *
+   * Where possible, getAppLocales() should be preferred over this API and
+   * all callsites should handle some form of "best effort" language
+   * negotiation to respect user preferences in case the use case does
+   * not have data for the first locale in the list.
+   *
+   * Example: "zh-Hans-HK"
+   */
+  ACString getAppLocale();
 };
-- 
cgit v1.2.3