michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsLookAndFeel.h"
michael@0: #include <windows.h>
michael@0: #include <shellapi.h>
michael@0: #include "nsStyleConsts.h"
michael@0: #include "nsUXThemeData.h"
michael@0: #include "nsUXThemeConstants.h"
michael@0: #include "gfxFont.h"
michael@0: #include "gfxWindowsPlatform.h"
michael@0: #include "mozilla/Telemetry.h"
michael@0: #include "mozilla/WindowsVersion.h"
michael@0: #include "gfxFontConstants.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::widget;
michael@0: 
michael@0: //static
michael@0: LookAndFeel::OperatingSystemVersion
michael@0: nsLookAndFeel::GetOperatingSystemVersion()
michael@0: {
michael@0:   static OperatingSystemVersion version = eOperatingSystemVersion_Unknown;
michael@0: 
michael@0:   if (version != eOperatingSystemVersion_Unknown) {
michael@0:     return version;
michael@0:   }
michael@0: 
michael@0:   if (IsWin8OrLater()) {
michael@0:     version = eOperatingSystemVersion_Windows8;
michael@0:   } else if (IsWin7OrLater()) {
michael@0:     version = eOperatingSystemVersion_Windows7;
michael@0:   } else if (IsVistaOrLater()) {
michael@0:     version = eOperatingSystemVersion_WindowsVista;
michael@0:   } else {
michael@0:     version = eOperatingSystemVersion_WindowsXP;
michael@0:   }
michael@0: 
michael@0:   return version;
michael@0: }
michael@0: 
michael@0: static nsresult GetColorFromTheme(nsUXThemeClass cls,
michael@0:                            int32_t aPart,
michael@0:                            int32_t aState,
michael@0:                            int32_t aPropId,
michael@0:                            nscolor &aColor)
michael@0: {
michael@0:   COLORREF color;
michael@0:   HRESULT hr = GetThemeColor(nsUXThemeData::GetTheme(cls), aPart, aState, aPropId, &color);
michael@0:   if (hr == S_OK)
michael@0:   {
michael@0:     aColor = COLOREF_2_NSRGB(color);
michael@0:     return NS_OK;
michael@0:   }
michael@0:   return NS_ERROR_FAILURE;
michael@0: }
michael@0: 
michael@0: static int32_t GetSystemParam(long flag, int32_t def)
michael@0: {
michael@0:     DWORD value; 
michael@0:     return ::SystemParametersInfo(flag, 0, &value, 0) ? value : def;
michael@0: }
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace widget {
michael@0: // This is in use here and in dom/events/TouchEvent.cpp
michael@0: int32_t IsTouchDeviceSupportPresent()
michael@0: {
michael@0:   int32_t touchCapabilities;
michael@0:   touchCapabilities = ::GetSystemMetrics(SM_DIGITIZER);
michael@0:   return ((touchCapabilities & NID_READY) && 
michael@0:           (touchCapabilities & (NID_EXTERNAL_TOUCH | NID_INTEGRATED_TOUCH)));
michael@0: }
michael@0: } }
michael@0: 
michael@0: nsLookAndFeel::nsLookAndFeel() : nsXPLookAndFeel()
michael@0: {
michael@0:   mozilla::Telemetry::Accumulate(mozilla::Telemetry::TOUCH_ENABLED_DEVICE,
michael@0:                                  IsTouchDeviceSupportPresent());
michael@0: }
michael@0: 
michael@0: nsLookAndFeel::~nsLookAndFeel()
michael@0: {
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsLookAndFeel::NativeGetColor(ColorID aID, nscolor &aColor)
michael@0: {
michael@0:   nsresult res = NS_OK;
michael@0: 
michael@0:   int idx;
michael@0:   switch (aID) {
michael@0:     case eColorID_WindowBackground:
michael@0:         idx = COLOR_WINDOW;
michael@0:         break;
michael@0:     case eColorID_WindowForeground:
michael@0:         idx = COLOR_WINDOWTEXT;
michael@0:         break;
michael@0:     case eColorID_WidgetBackground:
michael@0:         idx = COLOR_BTNFACE;
michael@0:         break;
michael@0:     case eColorID_WidgetForeground:
michael@0:         idx = COLOR_BTNTEXT;
michael@0:         break;
michael@0:     case eColorID_WidgetSelectBackground:
michael@0:         idx = COLOR_HIGHLIGHT;
michael@0:         break;
michael@0:     case eColorID_WidgetSelectForeground:
michael@0:         idx = COLOR_HIGHLIGHTTEXT;
michael@0:         break;
michael@0:     case eColorID_Widget3DHighlight:
michael@0:         idx = COLOR_BTNHIGHLIGHT;
michael@0:         break;
michael@0:     case eColorID_Widget3DShadow:
michael@0:         idx = COLOR_BTNSHADOW;
michael@0:         break;
michael@0:     case eColorID_TextBackground:
michael@0:         idx = COLOR_WINDOW;
michael@0:         break;
michael@0:     case eColorID_TextForeground:
michael@0:         idx = COLOR_WINDOWTEXT;
michael@0:         break;
michael@0:     case eColorID_TextSelectBackground:
michael@0:     case eColorID_IMESelectedRawTextBackground:
michael@0:     case eColorID_IMESelectedConvertedTextBackground:
michael@0:         idx = COLOR_HIGHLIGHT;
michael@0:         break;
michael@0:     case eColorID_TextSelectForeground:
michael@0:     case eColorID_IMESelectedRawTextForeground:
michael@0:     case eColorID_IMESelectedConvertedTextForeground:
michael@0:         idx = COLOR_HIGHLIGHTTEXT;
michael@0:         break;
michael@0:     case eColorID_IMERawInputBackground:
michael@0:     case eColorID_IMEConvertedTextBackground:
michael@0:         aColor = NS_TRANSPARENT;
michael@0:         return NS_OK;
michael@0:     case eColorID_IMERawInputForeground:
michael@0:     case eColorID_IMEConvertedTextForeground:
michael@0:         aColor = NS_SAME_AS_FOREGROUND_COLOR;
michael@0:         return NS_OK;
michael@0:     case eColorID_IMERawInputUnderline:
michael@0:     case eColorID_IMEConvertedTextUnderline:
michael@0:         aColor = NS_SAME_AS_FOREGROUND_COLOR;
michael@0:         return NS_OK;
michael@0:     case eColorID_IMESelectedRawTextUnderline:
michael@0:     case eColorID_IMESelectedConvertedTextUnderline:
michael@0:         aColor = NS_TRANSPARENT;
michael@0:         return NS_OK;
michael@0:     case eColorID_SpellCheckerUnderline:
michael@0:         aColor = NS_RGB(0xff, 0, 0);
michael@0:         return NS_OK;
michael@0: 
michael@0:     // New CSS 2 Color definitions
michael@0:     case eColorID_activeborder:
michael@0:       idx = COLOR_ACTIVEBORDER;
michael@0:       break;
michael@0:     case eColorID_activecaption:
michael@0:       idx = COLOR_ACTIVECAPTION;
michael@0:       break;
michael@0:     case eColorID_appworkspace:
michael@0:       idx = COLOR_APPWORKSPACE;
michael@0:       break;
michael@0:     case eColorID_background:
michael@0:       idx = COLOR_BACKGROUND;
michael@0:       break;
michael@0:     case eColorID_buttonface:
michael@0:     case eColorID__moz_buttonhoverface:
michael@0:       idx = COLOR_BTNFACE;
michael@0:       break;
michael@0:     case eColorID_buttonhighlight:
michael@0:       idx = COLOR_BTNHIGHLIGHT;
michael@0:       break;
michael@0:     case eColorID_buttonshadow:
michael@0:       idx = COLOR_BTNSHADOW;
michael@0:       break;
michael@0:     case eColorID_buttontext:
michael@0:     case eColorID__moz_buttonhovertext:
michael@0:       idx = COLOR_BTNTEXT;
michael@0:       break;
michael@0:     case eColorID_captiontext:
michael@0:       idx = COLOR_CAPTIONTEXT;
michael@0:       break;
michael@0:     case eColorID_graytext:
michael@0:       idx = COLOR_GRAYTEXT;
michael@0:       break;
michael@0:     case eColorID_highlight:
michael@0:     case eColorID__moz_html_cellhighlight:
michael@0:     case eColorID__moz_menuhover:
michael@0:       idx = COLOR_HIGHLIGHT;
michael@0:       break;
michael@0:     case eColorID__moz_menubarhovertext:
michael@0:       if (!IsVistaOrLater() || !IsAppThemed())
michael@0:       {
michael@0:         idx = nsUXThemeData::sFlatMenus ?
michael@0:                 COLOR_HIGHLIGHTTEXT :
michael@0:                 COLOR_MENUTEXT;
michael@0:         break;
michael@0:       }
michael@0:       // Fall through
michael@0:     case eColorID__moz_menuhovertext:
michael@0:       if (IsVistaOrLater() && IsAppThemed())
michael@0:       {
michael@0:         res = ::GetColorFromTheme(eUXMenu,
michael@0:                                   MENU_POPUPITEM, MPI_HOT, TMT_TEXTCOLOR, aColor);
michael@0:         if (NS_SUCCEEDED(res))
michael@0:           return res;
michael@0:         // fall through to highlight case
michael@0:       }
michael@0:     case eColorID_highlighttext:
michael@0:     case eColorID__moz_html_cellhighlighttext:
michael@0:       idx = COLOR_HIGHLIGHTTEXT;
michael@0:       break;
michael@0:     case eColorID_inactiveborder:
michael@0:       idx = COLOR_INACTIVEBORDER;
michael@0:       break;
michael@0:     case eColorID_inactivecaption:
michael@0:       idx = COLOR_INACTIVECAPTION;
michael@0:       break;
michael@0:     case eColorID_inactivecaptiontext:
michael@0:       idx = COLOR_INACTIVECAPTIONTEXT;
michael@0:       break;
michael@0:     case eColorID_infobackground:
michael@0:       idx = COLOR_INFOBK;
michael@0:       break;
michael@0:     case eColorID_infotext:
michael@0:       idx = COLOR_INFOTEXT;
michael@0:       break;
michael@0:     case eColorID_menu:
michael@0:       idx = COLOR_MENU;
michael@0:       break;
michael@0:     case eColorID_menutext:
michael@0:     case eColorID__moz_menubartext:
michael@0:       idx = COLOR_MENUTEXT;
michael@0:       break;
michael@0:     case eColorID_scrollbar:
michael@0:       idx = COLOR_SCROLLBAR;
michael@0:       break;
michael@0:     case eColorID_threeddarkshadow:
michael@0:       idx = COLOR_3DDKSHADOW;
michael@0:       break;
michael@0:     case eColorID_threedface:
michael@0:       idx = COLOR_3DFACE;
michael@0:       break;
michael@0:     case eColorID_threedhighlight:
michael@0:       idx = COLOR_3DHIGHLIGHT;
michael@0:       break;
michael@0:     case eColorID_threedlightshadow:
michael@0:       idx = COLOR_3DLIGHT;
michael@0:       break;
michael@0:     case eColorID_threedshadow:
michael@0:       idx = COLOR_3DSHADOW;
michael@0:       break;
michael@0:     case eColorID_window:
michael@0:       idx = COLOR_WINDOW;
michael@0:       break;
michael@0:     case eColorID_windowframe:
michael@0:       idx = COLOR_WINDOWFRAME;
michael@0:       break;
michael@0:     case eColorID_windowtext:
michael@0:       idx = COLOR_WINDOWTEXT;
michael@0:       break;
michael@0:     case eColorID__moz_eventreerow:
michael@0:     case eColorID__moz_oddtreerow:
michael@0:     case eColorID__moz_field:
michael@0:     case eColorID__moz_combobox:
michael@0:       idx = COLOR_WINDOW;
michael@0:       break;
michael@0:     case eColorID__moz_fieldtext:
michael@0:     case eColorID__moz_comboboxtext:
michael@0:       idx = COLOR_WINDOWTEXT;
michael@0:       break;
michael@0:     case eColorID__moz_dialog:
michael@0:     case eColorID__moz_cellhighlight:
michael@0:       idx = COLOR_3DFACE;
michael@0:       break;
michael@0:     case eColorID__moz_win_mediatext:
michael@0:       if (IsVistaOrLater() && IsAppThemed()) {
michael@0:         res = ::GetColorFromTheme(eUXMediaToolbar,
michael@0:                                   TP_BUTTON, TS_NORMAL, TMT_TEXTCOLOR, aColor);
michael@0:         if (NS_SUCCEEDED(res))
michael@0:           return res;
michael@0:       }
michael@0:       // if we've gotten here just return -moz-dialogtext instead
michael@0:       idx = COLOR_WINDOWTEXT;
michael@0:       break;
michael@0:     case eColorID__moz_win_communicationstext:
michael@0:       if (IsVistaOrLater() && IsAppThemed())
michael@0:       {
michael@0:         res = ::GetColorFromTheme(eUXCommunicationsToolbar,
michael@0:                                   TP_BUTTON, TS_NORMAL, TMT_TEXTCOLOR, aColor);
michael@0:         if (NS_SUCCEEDED(res))
michael@0:           return res;
michael@0:       }
michael@0:       // if we've gotten here just return -moz-dialogtext instead
michael@0:       idx = COLOR_WINDOWTEXT;
michael@0:       break;
michael@0:     case eColorID__moz_dialogtext:
michael@0:     case eColorID__moz_cellhighlighttext:
michael@0:       idx = COLOR_WINDOWTEXT;
michael@0:       break;
michael@0:     case eColorID__moz_dragtargetzone:
michael@0:       idx = COLOR_HIGHLIGHTTEXT;
michael@0:       break;
michael@0:     case eColorID__moz_buttondefault:
michael@0:       idx = COLOR_3DDKSHADOW;
michael@0:       break;
michael@0:     case eColorID__moz_nativehyperlinktext:
michael@0:       idx = COLOR_HOTLIGHT;
michael@0:       break;
michael@0:     default:
michael@0:       idx = COLOR_WINDOW;
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:   DWORD color = ::GetSysColor(idx);
michael@0:   aColor = COLOREF_2_NSRGB(color);
michael@0: 
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsLookAndFeel::GetIntImpl(IntID aID, int32_t &aResult)
michael@0: {
michael@0:   nsresult res = nsXPLookAndFeel::GetIntImpl(aID, aResult);
michael@0:   if (NS_SUCCEEDED(res))
michael@0:     return res;
michael@0:   res = NS_OK;
michael@0: 
michael@0:   switch (aID) {
michael@0:     case eIntID_CaretBlinkTime:
michael@0:         aResult = (int32_t)::GetCaretBlinkTime();
michael@0:         break;
michael@0:     case eIntID_CaretWidth:
michael@0:         aResult = 1;
michael@0:         break;
michael@0:     case eIntID_ShowCaretDuringSelection:
michael@0:         aResult = 0;
michael@0:         break;
michael@0:     case eIntID_SelectTextfieldsOnKeyFocus:
michael@0:         // Select textfield content when focused by kbd
michael@0:         // used by EventStateManager::sTextfieldSelectModel
michael@0:         aResult = 1;
michael@0:         break;
michael@0:     case eIntID_SubmenuDelay:
michael@0:         // This will default to the Windows' default
michael@0:         // (400ms) on error.
michael@0:         aResult = GetSystemParam(SPI_GETMENUSHOWDELAY, 400);
michael@0:         break;
michael@0:     case eIntID_TooltipDelay:
michael@0:         aResult = 500;
michael@0:         break;
michael@0:     case eIntID_MenusCanOverlapOSBar:
michael@0:         // we want XUL popups to be able to overlap the task bar.
michael@0:         aResult = 1;
michael@0:         break;
michael@0:     case eIntID_DragThresholdX:
michael@0:         // The system metric is the number of pixels at which a drag should
michael@0:         // start.  Our look and feel metric is the number of pixels you can
michael@0:         // move before starting a drag, so subtract 1.
michael@0: 
michael@0:         aResult = ::GetSystemMetrics(SM_CXDRAG) - 1;
michael@0:         break;
michael@0:     case eIntID_DragThresholdY:
michael@0:         aResult = ::GetSystemMetrics(SM_CYDRAG) - 1;
michael@0:         break;
michael@0:     case eIntID_UseAccessibilityTheme:
michael@0:         // High contrast is a misnomer under Win32 -- any theme can be used with it, 
michael@0:         // e.g. normal contrast with large fonts, low contrast, etc.
michael@0:         // The high contrast flag really means -- use this theme and don't override it.
michael@0:         aResult = nsUXThemeData::IsHighContrastOn();
michael@0:         break;
michael@0:     case eIntID_ScrollArrowStyle:
michael@0:         aResult = eScrollArrowStyle_Single;
michael@0:         break;
michael@0:     case eIntID_ScrollSliderStyle:
michael@0:         aResult = eScrollThumbStyle_Proportional;
michael@0:         break;
michael@0:     case eIntID_TreeOpenDelay:
michael@0:         aResult = 1000;
michael@0:         break;
michael@0:     case eIntID_TreeCloseDelay:
michael@0:         aResult = 0;
michael@0:         break;
michael@0:     case eIntID_TreeLazyScrollDelay:
michael@0:         aResult = 150;
michael@0:         break;
michael@0:     case eIntID_TreeScrollDelay:
michael@0:         aResult = 100;
michael@0:         break;
michael@0:     case eIntID_TreeScrollLinesMax:
michael@0:         aResult = 3;
michael@0:         break;
michael@0:     case eIntID_WindowsClassic:
michael@0:         aResult = !IsAppThemed();
michael@0:         break;
michael@0:     case eIntID_TouchEnabled:
michael@0:         aResult = IsTouchDeviceSupportPresent();
michael@0:         break;
michael@0:     case eIntID_WindowsDefaultTheme:
michael@0:         aResult = nsUXThemeData::IsDefaultWindowTheme();
michael@0:         break;
michael@0:     case eIntID_WindowsThemeIdentifier:
michael@0:         aResult = nsUXThemeData::GetNativeThemeId();
michael@0:         break;
michael@0: 
michael@0:     case eIntID_OperatingSystemVersionIdentifier:
michael@0:     {
michael@0:         aResult = GetOperatingSystemVersion();
michael@0:         break;
michael@0:     }
michael@0: 
michael@0:     case eIntID_MacGraphiteTheme:
michael@0:     case eIntID_MacLionTheme:
michael@0:         aResult = 0;
michael@0:         res = NS_ERROR_NOT_IMPLEMENTED;
michael@0:         break;
michael@0:     case eIntID_DWMCompositor:
michael@0:         aResult = nsUXThemeData::CheckForCompositor();
michael@0:         break;
michael@0:     case eIntID_WindowsGlass:
michael@0:         // Aero Glass is only available prior to Windows 8 when DWM is used.
michael@0:         aResult = (nsUXThemeData::CheckForCompositor() && !IsWin8OrLater());
michael@0:         break;
michael@0:     case eIntID_AlertNotificationOrigin:
michael@0:         aResult = 0;
michael@0:         {
michael@0:           // Get task bar window handle
michael@0:           HWND shellWindow = FindWindowW(L"Shell_TrayWnd", nullptr);
michael@0: 
michael@0:           if (shellWindow != nullptr)
michael@0:           {
michael@0:             // Determine position
michael@0:             APPBARDATA appBarData;
michael@0:             appBarData.hWnd = shellWindow;
michael@0:             appBarData.cbSize = sizeof(appBarData);
michael@0:             if (SHAppBarMessage(ABM_GETTASKBARPOS, &appBarData))
michael@0:             {
michael@0:               // Set alert origin as a bit field - see LookAndFeel.h
michael@0:               // 0 represents bottom right, sliding vertically.
michael@0:               switch(appBarData.uEdge)
michael@0:               {
michael@0:                 case ABE_LEFT:
michael@0:                   aResult = NS_ALERT_HORIZONTAL | NS_ALERT_LEFT;
michael@0:                   break;
michael@0:                 case ABE_RIGHT:
michael@0:                   aResult = NS_ALERT_HORIZONTAL;
michael@0:                   break;
michael@0:                 case ABE_TOP:
michael@0:                   aResult = NS_ALERT_TOP;
michael@0:                   // fall through for the right-to-left handling.
michael@0:                 case ABE_BOTTOM:
michael@0:                   // If the task bar is right-to-left,
michael@0:                   // move the origin to the left
michael@0:                   if (::GetWindowLong(shellWindow, GWL_EXSTYLE) &
michael@0:                         WS_EX_LAYOUTRTL)
michael@0:                     aResult |= NS_ALERT_LEFT;
michael@0:                   break;
michael@0:               }
michael@0:             }
michael@0:           }
michael@0:         }
michael@0:         break;
michael@0:     case eIntID_IMERawInputUnderlineStyle:
michael@0:     case eIntID_IMEConvertedTextUnderlineStyle:
michael@0:         aResult = NS_STYLE_TEXT_DECORATION_STYLE_DASHED;
michael@0:         break;
michael@0:     case eIntID_IMESelectedRawTextUnderlineStyle:
michael@0:     case eIntID_IMESelectedConvertedTextUnderline:
michael@0:         aResult = NS_STYLE_TEXT_DECORATION_STYLE_NONE;
michael@0:         break;
michael@0:     case eIntID_SpellCheckerUnderlineStyle:
michael@0:         aResult = NS_STYLE_TEXT_DECORATION_STYLE_WAVY;
michael@0:         break;
michael@0:     case eIntID_ScrollbarButtonAutoRepeatBehavior:
michael@0:         aResult = 0;
michael@0:         break;
michael@0:     case eIntID_SwipeAnimationEnabled:
michael@0:         aResult = 0;
michael@0:         break;
michael@0:     case eIntID_ColorPickerAvailable:
michael@0:         // We don't have a color picker implemented on Metro yet (bug 895464)
michael@0:         aResult = (XRE_GetWindowsEnvironment() != WindowsEnvironmentType_Metro);
michael@0:         break;
michael@0:     case eIntID_UseOverlayScrollbars:
michael@0:         aResult = (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Metro);
michael@0:         break;
michael@0:     case eIntID_AllowOverlayScrollbarsOverlap:
michael@0:         aResult = 0;
michael@0:         break;
michael@0:     case eIntID_ScrollbarDisplayOnMouseMove:
michael@0:         aResult = 1;
michael@0:         break;
michael@0:     case eIntID_ScrollbarFadeBeginDelay:
michael@0:         aResult = 2500;
michael@0:         break;
michael@0:     case eIntID_ScrollbarFadeDuration:
michael@0:         aResult = 350;
michael@0:         break;
michael@0:     default:
michael@0:         aResult = 0;
michael@0:         res = NS_ERROR_FAILURE;
michael@0:     }
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsLookAndFeel::GetFloatImpl(FloatID aID, float &aResult)
michael@0: {
michael@0:   nsresult res = nsXPLookAndFeel::GetFloatImpl(aID, aResult);
michael@0:   if (NS_SUCCEEDED(res))
michael@0:     return res;
michael@0:   res = NS_OK;
michael@0: 
michael@0:   switch (aID) {
michael@0:     case eFloatID_IMEUnderlineRelativeSize:
michael@0:         aResult = 1.0f;
michael@0:         break;
michael@0:     case eFloatID_SpellCheckerUnderlineRelativeSize:
michael@0:         aResult = 1.0f;
michael@0:         break;
michael@0:     default:
michael@0:         aResult = -1.0;
michael@0:         res = NS_ERROR_FAILURE;
michael@0:     }
michael@0:   return res;
michael@0: }
michael@0: 
michael@0: static bool
michael@0: GetSysFontInfo(HDC aHDC, LookAndFeel::FontID anID,
michael@0:                nsString &aFontName,
michael@0:                gfxFontStyle &aFontStyle)
michael@0: {
michael@0:   LOGFONTW* ptrLogFont = nullptr;
michael@0:   LOGFONTW logFont;
michael@0:   NONCLIENTMETRICSW ncm;
michael@0:   HGDIOBJ hGDI;
michael@0:   char16_t name[LF_FACESIZE];
michael@0: 
michael@0:   // Depending on which stock font we want, there are three different
michael@0:   // places we might have to look it up.
michael@0:   switch (anID) {
michael@0:   case LookAndFeel::eFont_Icon:
michael@0:     if (!::SystemParametersInfoW(SPI_GETICONTITLELOGFONT,
michael@0:                                  sizeof(logFont), (PVOID)&logFont, 0))
michael@0:       return false;
michael@0: 
michael@0:     ptrLogFont = &logFont;
michael@0:     break;
michael@0: 
michael@0:   case LookAndFeel::eFont_Menu:
michael@0:   case LookAndFeel::eFont_MessageBox:
michael@0:   case LookAndFeel::eFont_SmallCaption:
michael@0:   case LookAndFeel::eFont_StatusBar:
michael@0:   case LookAndFeel::eFont_Tooltips:
michael@0:     ncm.cbSize = sizeof(NONCLIENTMETRICSW);
michael@0:     if (!::SystemParametersInfoW(SPI_GETNONCLIENTMETRICS,
michael@0:                                  sizeof(ncm), (PVOID)&ncm, 0))
michael@0:       return false;
michael@0: 
michael@0:     switch (anID) {
michael@0:     case LookAndFeel::eFont_Menu:
michael@0:       ptrLogFont = &ncm.lfMenuFont;
michael@0:       break;
michael@0:     case LookAndFeel::eFont_MessageBox:
michael@0:       ptrLogFont = &ncm.lfMessageFont;
michael@0:       break;
michael@0:     case LookAndFeel::eFont_SmallCaption:
michael@0:       ptrLogFont = &ncm.lfSmCaptionFont;
michael@0:       break;
michael@0:     case LookAndFeel::eFont_StatusBar:
michael@0:     case LookAndFeel::eFont_Tooltips:
michael@0:       ptrLogFont = &ncm.lfStatusFont;
michael@0:       break;
michael@0:     }
michael@0:     break;
michael@0: 
michael@0:   case LookAndFeel::eFont_Widget:
michael@0:   case LookAndFeel::eFont_Window:      // css3
michael@0:   case LookAndFeel::eFont_Document:
michael@0:   case LookAndFeel::eFont_Workspace:
michael@0:   case LookAndFeel::eFont_Desktop:
michael@0:   case LookAndFeel::eFont_Info:
michael@0:   case LookAndFeel::eFont_Dialog:
michael@0:   case LookAndFeel::eFont_Button:
michael@0:   case LookAndFeel::eFont_PullDownMenu:
michael@0:   case LookAndFeel::eFont_List:
michael@0:   case LookAndFeel::eFont_Field:
michael@0:   case LookAndFeel::eFont_Caption:
michael@0:     hGDI = ::GetStockObject(DEFAULT_GUI_FONT);
michael@0:     if (!hGDI)
michael@0:       return false;
michael@0: 
michael@0:     if (::GetObjectW(hGDI, sizeof(logFont), &logFont) <= 0)
michael@0:       return false;
michael@0: 
michael@0:     ptrLogFont = &logFont;
michael@0:     break;
michael@0:   }
michael@0: 
michael@0:   // Get scaling factor from physical to logical pixels
michael@0:   float pixelScale = 1.0f / gfxWindowsPlatform::GetPlatform()->GetDPIScale();
michael@0: 
michael@0:   // The lfHeight is in pixels, and it needs to be adjusted for the
michael@0:   // device it will be displayed on.
michael@0:   // Screens and Printers will differ in DPI
michael@0:   //
michael@0:   // So this accounts for the difference in the DeviceContexts
michael@0:   // The pixelScale will typically be 1.0 for the screen
michael@0:   // (though larger for hi-dpi screens where the Windows resolution
michael@0:   // scale factor is 125% or 150% or even more), and could be
michael@0:   // any value when going to a printer, for example pixelScale is
michael@0:   // 6.25 when going to a 600dpi printer.
michael@0:   float pixelHeight = -ptrLogFont->lfHeight;
michael@0:   if (pixelHeight < 0) {
michael@0:     HFONT hFont = ::CreateFontIndirectW(ptrLogFont);
michael@0:     if (!hFont)
michael@0:       return false;
michael@0:     HGDIOBJ hObject = ::SelectObject(aHDC, hFont);
michael@0:     TEXTMETRIC tm;
michael@0:     ::GetTextMetrics(aHDC, &tm);
michael@0:     ::SelectObject(aHDC, hObject);
michael@0:     ::DeleteObject(hFont);
michael@0:     pixelHeight = tm.tmAscent;
michael@0:   }
michael@0:   pixelHeight *= pixelScale;
michael@0: 
michael@0:   // we have problem on Simplified Chinese system because the system
michael@0:   // report the default font size is 8 points. but if we use 8, the text
michael@0:   // display very ugly. force it to be at 9 points (12 pixels) on that
michael@0:   // system (cp936), but leave other sizes alone.
michael@0:   if (pixelHeight < 12 && ::GetACP() == 936)
michael@0:     pixelHeight = 12;
michael@0: 
michael@0:   aFontStyle.size = pixelHeight;
michael@0: 
michael@0:   // FIXME: What about oblique?
michael@0:   aFontStyle.style =
michael@0:     (ptrLogFont->lfItalic) ? NS_FONT_STYLE_ITALIC : NS_FONT_STYLE_NORMAL;
michael@0: 
michael@0:   // FIXME: Other weights?
michael@0:   aFontStyle.weight =
michael@0:     (ptrLogFont->lfWeight == FW_BOLD ?
michael@0:         NS_FONT_WEIGHT_BOLD : NS_FONT_WEIGHT_NORMAL);
michael@0: 
michael@0:   // FIXME: Set aFontStyle->stretch correctly!
michael@0:   aFontStyle.stretch = NS_FONT_STRETCH_NORMAL;
michael@0: 
michael@0:   aFontStyle.systemFont = true;
michael@0: 
michael@0:   name[0] = 0;
michael@0:   memcpy(name, ptrLogFont->lfFaceName, LF_FACESIZE*sizeof(char16_t));
michael@0:   aFontName = name;
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: bool
michael@0: nsLookAndFeel::GetFontImpl(FontID anID, nsString &aFontName,
michael@0:                            gfxFontStyle &aFontStyle,
michael@0:                            float aDevPixPerCSSPixel)
michael@0: {
michael@0:   HDC tdc = GetDC(nullptr);
michael@0:   bool status = GetSysFontInfo(tdc, anID, aFontName, aFontStyle);
michael@0:   ReleaseDC(nullptr, tdc);
michael@0:   // now convert the logical font size from GetSysFontInfo into device pixels for layout
michael@0:   aFontStyle.size *= aDevPixPerCSSPixel;
michael@0:   return status;
michael@0: }
michael@0: 
michael@0: /* virtual */
michael@0: char16_t
michael@0: nsLookAndFeel::GetPasswordCharacterImpl()
michael@0: {
michael@0: #define UNICODE_BLACK_CIRCLE_CHAR 0x25cf
michael@0:   return UNICODE_BLACK_CIRCLE_CHAR;
michael@0: }