From a970411caf9b1951708efb4987733c6a4581454b Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Mon, 14 Jun 2021 11:52:16 +0000
Subject: Issue #1782: Remove Luna, Royale and Zune support from the platform.

These are obsolete system themes; the platform will fall back to generic/unknown
theme support instead.
---
 widget/LookAndFeel.h                |  5 ---
 widget/windows/nsNativeThemeWin.cpp |  1 -
 widget/windows/nsUXThemeData.cpp    | 66 +++++++------------------------------
 widget/windows/nsUXThemeData.h      | 10 +-----
 4 files changed, 13 insertions(+), 69 deletions(-)

(limited to 'widget')

diff --git a/widget/LookAndFeel.h b/widget/LookAndFeel.h
index 60ebc2782c..226aa0d61e 100644
--- a/widget/LookAndFeel.h
+++ b/widget/LookAndFeel.h
@@ -438,11 +438,6 @@ public:
     eWindowsTheme_Generic = 0, // unrecognized theme
     eWindowsTheme_Classic,
     eWindowsTheme_Aero,
-    eWindowsTheme_LunaBlue,
-    eWindowsTheme_LunaOlive,
-    eWindowsTheme_LunaSilver,
-    eWindowsTheme_Royale,
-    eWindowsTheme_Zune,
     eWindowsTheme_AeroLite
   };
 
diff --git a/widget/windows/nsNativeThemeWin.cpp b/widget/windows/nsNativeThemeWin.cpp
index 0947019caa..40bc3d7c28 100644
--- a/widget/windows/nsNativeThemeWin.cpp
+++ b/widget/windows/nsNativeThemeWin.cpp
@@ -1101,7 +1101,6 @@ nsNativeThemeWin::GetThemePartAndState(nsIFrame* aFrame, uint8_t aWidgetType,
       return NS_OK;
     }
     case NS_THEME_TREEHEADERSORTARROW: {
-      // XXX Probably will never work due to a bug in the Luna theme.
       aPart = 4;
       aState = 1;
       return NS_OK;
diff --git a/widget/windows/nsUXThemeData.cpp b/widget/windows/nsUXThemeData.cpp
index ce27775851..e13f1234da 100644
--- a/widget/windows/nsUXThemeData.cpp
+++ b/widget/windows/nsUXThemeData.cpp
@@ -240,9 +240,8 @@ nsUXThemeData::UpdateTitlebarInfo(HWND aWnd)
 }
 
 // visual style (aero glass, aero basic)
-//    theme (aero, luna, zune)
-//      theme color (silver, olive, blue)
-//        system colors
+//    theme (aero, aero-lite)
+//      system colors
 
 struct THEMELIST {
   LPCWSTR name;
@@ -251,16 +250,7 @@ struct THEMELIST {
 
 const THEMELIST knownThemes[] = {
   { L"aero.msstyles", WINTHEME_AERO },
-  { L"aerolite.msstyles", WINTHEME_AERO_LITE },
-  { L"luna.msstyles", WINTHEME_LUNA },
-  { L"zune.msstyles", WINTHEME_ZUNE },
-  { L"royale.msstyles", WINTHEME_ROYALE }
-};
-
-const THEMELIST knownColors[] = {
-  { L"normalcolor", WINTHEMECOLOR_NORMAL },
-  { L"homestead",   WINTHEMECOLOR_HOMESTEAD },
-  { L"metallic",    WINTHEMECOLOR_METALLIC }
+  { L"aerolite.msstyles", WINTHEME_AERO_LITE }
 };
 
 LookAndFeel::WindowsTheme
@@ -347,57 +337,25 @@ nsUXThemeData::UpdateNativeThemeInfo()
   if (theme == WINTHEME_UNRECOGNIZED)
     return;
 
-  // We're using the default theme if we're using any of Aero, Aero Lite, or
-  // luna. However, on Win8, GetCurrentThemeName (see above) returns
+  // We're using the default theme if we're using Aero or Aero Lite
+  // However, on Win8 or later, GetCurrentThemeName (see above) returns
   // AeroLite.msstyles for the 4 builtin highcontrast themes as well. Those
   // themes "don't count" as default themes, so we specifically check for high
   // contrast mode in that situation.
   if (!(IsWin8OrLater() && sIsHighContrastOn) &&
-      (theme == WINTHEME_AERO || theme == WINTHEME_AERO_LITE || theme == WINTHEME_LUNA)) {
+      (theme == WINTHEME_AERO || theme == WINTHEME_AERO_LITE)) {
     sIsDefaultWindowsTheme = true;
   }
 
-  if (theme != WINTHEME_LUNA) {
-    switch(theme) {
-      case WINTHEME_AERO:
-        sThemeId = LookAndFeel::eWindowsTheme_Aero;
-        return;
-      case WINTHEME_AERO_LITE:
-        sThemeId = LookAndFeel::eWindowsTheme_AeroLite;
-        return;
-      case WINTHEME_ZUNE:
-        sThemeId = LookAndFeel::eWindowsTheme_Zune;
-        return;
-      case WINTHEME_ROYALE:
-        sThemeId = LookAndFeel::eWindowsTheme_Royale;
-        return;
-      default:
-        NS_WARNING("unhandled theme type.");
-        return;
-    }
-  }
-
-  // calculate the luna color scheme
-  WindowsThemeColor color = WINTHEMECOLOR_UNRECOGNIZED;
-  for (size_t i = 0; i < ArrayLength(knownColors); ++i) {
-    if (!lstrcmpiW(themeColor, knownColors[i].name)) {
-      color = (WindowsThemeColor)knownColors[i].type;
-      break;
-    }
-  }
-
-  switch(color) {
-    case WINTHEMECOLOR_NORMAL:
-      sThemeId = LookAndFeel::eWindowsTheme_LunaBlue;
-      return;
-    case WINTHEMECOLOR_HOMESTEAD:
-      sThemeId = LookAndFeel::eWindowsTheme_LunaOlive;
+  switch(theme) {
+    case WINTHEME_AERO:
+      sThemeId = LookAndFeel::eWindowsTheme_Aero;
       return;
-    case WINTHEMECOLOR_METALLIC:
-      sThemeId = LookAndFeel::eWindowsTheme_LunaSilver;
+    case WINTHEME_AERO_LITE:
+      sThemeId = LookAndFeel::eWindowsTheme_AeroLite;
       return;
     default:
-      NS_WARNING("unhandled theme color.");
+      NS_WARNING("unhandled theme type.");
       return;
   }
 }
diff --git a/widget/windows/nsUXThemeData.h b/widget/windows/nsUXThemeData.h
index 2688ec6592..84894cd4eb 100644
--- a/widget/windows/nsUXThemeData.h
+++ b/widget/windows/nsUXThemeData.h
@@ -61,17 +61,9 @@ enum WindowsTheme {
   WINTHEME_UNRECOGNIZED = 0,
   WINTHEME_CLASSIC      = 1, // no theme
   WINTHEME_AERO         = 2,
-  WINTHEME_LUNA         = 3,
-  WINTHEME_ROYALE       = 4,
-  WINTHEME_ZUNE         = 5,
+  // 3, 4 and 5 were used for XP themes
   WINTHEME_AERO_LITE    = 6
 };
-enum WindowsThemeColor {
-  WINTHEMECOLOR_UNRECOGNIZED = 0,
-  WINTHEMECOLOR_NORMAL       = 1,
-  WINTHEMECOLOR_HOMESTEAD    = 2,
-  WINTHEMECOLOR_METALLIC     = 3
-};
 
 #define CMDBUTTONIDX_MINIMIZE    0
 #define CMDBUTTONIDX_RESTORE     1
-- 
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