gecko-dev/widget/cocoa/nsLookAndFeel.mm
2016-02-26 16:30:52 -06:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsLookAndFeel.h"
#include "nsCocoaFeatures.h"
#include "nsIServiceManager.h"
#include "nsNativeThemeColors.h"
#include "nsStyleConsts.h"
#include "nsCocoaFeatures.h"
#include "gfxFont.h"
#include "gfxFontConstants.h"
#include "gfxPlatformMac.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/widget/WidgetMessageUtils.h"
#import <Cocoa/Cocoa.h>
// This must be included last:
#include "nsObjCExceptions.h"
enum {
mozNSScrollerStyleLegacy = 0,
mozNSScrollerStyleOverlay = 1
};
typedef NSInteger mozNSScrollerStyle;
@interface NSScroller(AvailableSinceLion)
+ (mozNSScrollerStyle)preferredScrollerStyle;
@end
nsLookAndFeel::nsLookAndFeel()
: nsXPLookAndFeel()
, mUseOverlayScrollbars(-1)
, mUseOverlayScrollbarsCached(false)
, mAllowOverlayScrollbarsOverlap(-1)
, mAllowOverlayScrollbarsOverlapCached(false)
{
}
nsLookAndFeel::~nsLookAndFeel()
{
}
static nscolor GetColorFromNSColor(NSColor* aColor)
{
NSColor* deviceColor = [aColor colorUsingColorSpaceName:NSDeviceRGBColorSpace];
return NS_RGB((unsigned int)([deviceColor redComponent] * 255.0),
(unsigned int)([deviceColor greenComponent] * 255.0),
(unsigned int)([deviceColor blueComponent] * 255.0));
}
nsresult
nsLookAndFeel::NativeGetColor(ColorID aID, nscolor &aColor)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsresult res = NS_OK;
switch (aID) {
case eColorID_WindowBackground:
aColor = NS_RGB(0xff,0xff,0xff);
break;
case eColorID_WindowForeground:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_WidgetBackground:
aColor = NS_RGB(0xdd,0xdd,0xdd);
break;
case eColorID_WidgetForeground:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_WidgetSelectBackground:
aColor = NS_RGB(0x80,0x80,0x80);
break;
case eColorID_WidgetSelectForeground:
aColor = NS_RGB(0x00,0x00,0x80);
break;
case eColorID_Widget3DHighlight:
aColor = NS_RGB(0xa0,0xa0,0xa0);
break;
case eColorID_Widget3DShadow:
aColor = NS_RGB(0x40,0x40,0x40);
break;
case eColorID_TextBackground:
aColor = NS_RGB(0xff,0xff,0xff);
break;
case eColorID_TextForeground:
aColor = NS_RGB(0x00,0x00,0x00);
break;
case eColorID_TextSelectBackground:
aColor = GetColorFromNSColor([NSColor selectedTextBackgroundColor]);
break;
case eColorID_highlight: // CSS2 color
aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
break;
case eColorID__moz_menuhover:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
break;
case eColorID_TextSelectForeground:
GetColor(eColorID_TextSelectBackground, aColor);
if (aColor == 0x000000)
aColor = NS_RGB(0xff,0xff,0xff);
else
aColor = NS_DONT_CHANGE_COLOR;
break;
case eColorID_highlighttext: // CSS2 color
case eColorID__moz_menuhovertext:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlTextColor]);
break;
case eColorID_IMESelectedRawTextBackground:
case eColorID_IMESelectedConvertedTextBackground:
case eColorID_IMERawInputBackground:
case eColorID_IMEConvertedTextBackground:
aColor = NS_TRANSPARENT;
break;
case eColorID_IMESelectedRawTextForeground:
case eColorID_IMESelectedConvertedTextForeground:
case eColorID_IMERawInputForeground:
case eColorID_IMEConvertedTextForeground:
aColor = NS_SAME_AS_FOREGROUND_COLOR;
break;
case eColorID_IMERawInputUnderline:
case eColorID_IMEConvertedTextUnderline:
aColor = NS_40PERCENT_FOREGROUND_COLOR;
break;
case eColorID_IMESelectedRawTextUnderline:
case eColorID_IMESelectedConvertedTextUnderline:
aColor = NS_SAME_AS_FOREGROUND_COLOR;
break;
case eColorID_SpellCheckerUnderline:
aColor = NS_RGB(0xff, 0, 0);
break;
//
// css2 system colors http://www.w3.org/TR/REC-CSS2/ui.html#system-colors
//
// It's really hard to effectively map these to the Appearance Manager properly,
// since they are modeled word for word after the win32 system colors and don't have any
// real counterparts in the Mac world. I'm sure we'll be tweaking these for
// years to come.
//
// Thanks to mpt26@student.canterbury.ac.nz for the hardcoded values that form the defaults
// if querying the Appearance Manager fails ;)
//
case eColorID__moz_mac_buttonactivetext:
case eColorID__moz_mac_defaultbuttontext:
if (nsCocoaFeatures::OnYosemiteOrLater()) {
aColor = NS_RGB(0xFF,0xFF,0xFF);
break;
}
// Otherwise fall through and return the regular button text:
case eColorID_buttontext:
case eColorID__moz_buttonhovertext:
aColor = GetColorFromNSColor([NSColor controlTextColor]);
break;
case eColorID_captiontext:
case eColorID_menutext:
case eColorID_infotext:
case eColorID__moz_menubartext:
aColor = GetColorFromNSColor([NSColor textColor]);
break;
case eColorID_windowtext:
aColor = GetColorFromNSColor([NSColor windowFrameTextColor]);
break;
case eColorID_activecaption:
aColor = GetColorFromNSColor([NSColor gridColor]);
break;
case eColorID_activeborder:
aColor = GetColorFromNSColor([NSColor keyboardFocusIndicatorColor]);
break;
case eColorID_appworkspace:
aColor = NS_RGB(0xFF,0xFF,0xFF);
break;
case eColorID_background:
aColor = NS_RGB(0x63,0x63,0xCE);
break;
case eColorID_buttonface:
case eColorID__moz_buttonhoverface:
aColor = NS_RGB(0xF0,0xF0,0xF0);
break;
case eColorID_buttonhighlight:
aColor = NS_RGB(0xFF,0xFF,0xFF);
break;
case eColorID_buttonshadow:
aColor = NS_RGB(0xDC,0xDC,0xDC);
break;
case eColorID_graytext:
aColor = GetColorFromNSColor([NSColor disabledControlTextColor]);
break;
case eColorID_inactiveborder:
aColor = GetColorFromNSColor([NSColor controlBackgroundColor]);
break;
case eColorID_inactivecaption:
aColor = GetColorFromNSColor([NSColor controlBackgroundColor]);
break;
case eColorID_inactivecaptiontext:
aColor = NS_RGB(0x45,0x45,0x45);
break;
case eColorID_scrollbar:
aColor = GetColorFromNSColor([NSColor scrollBarColor]);
break;
case eColorID_threeddarkshadow:
aColor = NS_RGB(0xDC,0xDC,0xDC);
break;
case eColorID_threedshadow:
aColor = NS_RGB(0xE0,0xE0,0xE0);
break;
case eColorID_threedface:
aColor = NS_RGB(0xF0,0xF0,0xF0);
break;
case eColorID_threedhighlight:
aColor = GetColorFromNSColor([NSColor highlightColor]);
break;
case eColorID_threedlightshadow:
aColor = NS_RGB(0xDA,0xDA,0xDA);
break;
case eColorID_menu:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlTextColor]);
break;
case eColorID_infobackground:
aColor = NS_RGB(0xFF,0xFF,0xC7);
break;
case eColorID_windowframe:
aColor = GetColorFromNSColor([NSColor gridColor]);
break;
case eColorID_window:
case eColorID__moz_field:
case eColorID__moz_combobox:
aColor = NS_RGB(0xff,0xff,0xff);
break;
case eColorID__moz_fieldtext:
case eColorID__moz_comboboxtext:
aColor = GetColorFromNSColor([NSColor controlTextColor]);
break;
case eColorID__moz_dialog:
aColor = GetColorFromNSColor([NSColor controlHighlightColor]);
break;
case eColorID__moz_dialogtext:
case eColorID__moz_cellhighlighttext:
case eColorID__moz_html_cellhighlighttext:
aColor = GetColorFromNSColor([NSColor controlTextColor]);
break;
case eColorID__moz_dragtargetzone:
aColor = GetColorFromNSColor([NSColor selectedControlColor]);
break;
case eColorID__moz_mac_chrome_active:
case eColorID__moz_mac_chrome_inactive: {
int grey = NativeGreyColorAsInt(toolbarFillGrey, (aID == eColorID__moz_mac_chrome_active));
aColor = NS_RGB(grey, grey, grey);
}
break;
case eColorID__moz_mac_focusring:
aColor = GetColorFromNSColor([NSColor keyboardFocusIndicatorColor]);
break;
case eColorID__moz_mac_menushadow:
aColor = NS_RGB(0xA3,0xA3,0xA3);
break;
case eColorID__moz_mac_menutextdisable:
aColor = NS_RGB(0x98,0x98,0x98);
break;
case eColorID__moz_mac_menutextselect:
aColor = GetColorFromNSColor([NSColor selectedMenuItemTextColor]);
break;
case eColorID__moz_mac_disabledtoolbartext:
aColor = GetColorFromNSColor([NSColor disabledControlTextColor]);
break;
case eColorID__moz_mac_menuselect:
aColor = GetColorFromNSColor([NSColor alternateSelectedControlColor]);
break;
case eColorID__moz_buttondefault:
aColor = NS_RGB(0xDC,0xDC,0xDC);
break;
case eColorID__moz_cellhighlight:
case eColorID__moz_html_cellhighlight:
case eColorID__moz_mac_secondaryhighlight:
// For inactive list selection
aColor = GetColorFromNSColor([NSColor secondarySelectedControlColor]);
break;
case eColorID__moz_eventreerow:
// Background color of even list rows.
aColor = GetColorFromNSColor([[NSColor controlAlternatingRowBackgroundColors] objectAtIndex:0]);
break;
case eColorID__moz_oddtreerow:
// Background color of odd list rows.
aColor = GetColorFromNSColor([[NSColor controlAlternatingRowBackgroundColors] objectAtIndex:1]);
break;
case eColorID__moz_nativehyperlinktext:
// There appears to be no available system defined color. HARDCODING to the appropriate color.
aColor = NS_RGB(0x14,0x4F,0xAE);
break;
default:
NS_WARNING("Someone asked nsILookAndFeel for a color I don't know about");
aColor = NS_RGB(0xff,0xff,0xff);
res = NS_ERROR_FAILURE;
break;
}
return res;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult
nsLookAndFeel::GetIntImpl(IntID aID, int32_t &aResult)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
nsresult res = nsXPLookAndFeel::GetIntImpl(aID, aResult);
if (NS_SUCCEEDED(res))
return res;
res = NS_OK;
switch (aID) {
case eIntID_CaretBlinkTime:
aResult = 567;
break;
case eIntID_CaretWidth:
aResult = 1;
break;
case eIntID_ShowCaretDuringSelection:
aResult = 0;
break;
case eIntID_SelectTextfieldsOnKeyFocus:
// Select textfield content when focused by kbd
// used by EventStateManager::sTextfieldSelectModel
aResult = 1;
break;
case eIntID_SubmenuDelay:
aResult = 200;
break;
case eIntID_TooltipDelay:
aResult = 500;
break;
case eIntID_MenusCanOverlapOSBar:
// xul popups are not allowed to overlap the menubar.
aResult = 0;
break;
case eIntID_SkipNavigatingDisabledMenuItem:
aResult = 1;
break;
case eIntID_DragThresholdX:
case eIntID_DragThresholdY:
aResult = 4;
break;
case eIntID_ScrollArrowStyle:
if (nsCocoaFeatures::OnLionOrLater()) {
// OS X Lion's scrollbars have no arrows
aResult = eScrollArrow_None;
} else {
NSString *buttonPlacement = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleScrollBarVariant"];
if ([buttonPlacement isEqualToString:@"Single"]) {
aResult = eScrollArrowStyle_Single;
} else if ([buttonPlacement isEqualToString:@"DoubleMin"]) {
aResult = eScrollArrowStyle_BothAtTop;
} else if ([buttonPlacement isEqualToString:@"DoubleBoth"]) {
aResult = eScrollArrowStyle_BothAtEachEnd;
} else {
aResult = eScrollArrowStyle_BothAtBottom; // The default is BothAtBottom.
}
}
break;
case eIntID_ScrollSliderStyle:
aResult = eScrollThumbStyle_Proportional;
break;
case eIntID_UseOverlayScrollbars:
if (!mUseOverlayScrollbarsCached) {
mUseOverlayScrollbars = SystemWantsOverlayScrollbars() ? 1 : 0;
mUseOverlayScrollbarsCached = true;
}
aResult = mUseOverlayScrollbars;
break;
case eIntID_AllowOverlayScrollbarsOverlap:
if (!mAllowOverlayScrollbarsOverlapCached) {
mAllowOverlayScrollbarsOverlap = AllowOverlayScrollbarsOverlap() ? 1 : 0;
mAllowOverlayScrollbarsOverlapCached = true;
}
aResult = mAllowOverlayScrollbarsOverlap;
break;
case eIntID_ScrollbarDisplayOnMouseMove:
aResult = 0;
break;
case eIntID_ScrollbarFadeBeginDelay:
aResult = 450;
break;
case eIntID_ScrollbarFadeDuration:
aResult = 200;
break;
case eIntID_TreeOpenDelay:
aResult = 1000;
break;
case eIntID_TreeCloseDelay:
aResult = 1000;
break;
case eIntID_TreeLazyScrollDelay:
aResult = 150;
break;
case eIntID_TreeScrollDelay:
aResult = 100;
break;
case eIntID_TreeScrollLinesMax:
aResult = 3;
break;
case eIntID_DWMCompositor:
case eIntID_WindowsClassic:
case eIntID_WindowsDefaultTheme:
case eIntID_TouchEnabled:
case eIntID_WindowsThemeIdentifier:
case eIntID_OperatingSystemVersionIdentifier:
aResult = 0;
res = NS_ERROR_NOT_IMPLEMENTED;
break;
case eIntID_MacGraphiteTheme:
aResult = [NSColor currentControlTint] == NSGraphiteControlTint;
break;
case eIntID_MacLionTheme:
aResult = nsCocoaFeatures::OnLionOrLater();
break;
case eIntID_MacYosemiteTheme:
aResult = nsCocoaFeatures::OnYosemiteOrLater();
break;
case eIntID_AlertNotificationOrigin:
aResult = NS_ALERT_TOP;
break;
case eIntID_TabFocusModel:
{
// we should probably cache this
CFPropertyListRef fullKeyboardAccessProperty;
fullKeyboardAccessProperty = ::CFPreferencesCopyValue(CFSTR("AppleKeyboardUIMode"),
kCFPreferencesAnyApplication,
kCFPreferencesCurrentUser,
kCFPreferencesAnyHost);
aResult = 1; // default to just textboxes
if (fullKeyboardAccessProperty) {
int32_t fullKeyboardAccessPrefVal;
if (::CFNumberGetValue((CFNumberRef) fullKeyboardAccessProperty, kCFNumberIntType, &fullKeyboardAccessPrefVal)) {
// the second bit means "Full keyboard access" is on
if (fullKeyboardAccessPrefVal & (1 << 1))
aResult = 7; // everything that can be focused
}
::CFRelease(fullKeyboardAccessProperty);
}
}
break;
case eIntID_ScrollToClick:
{
aResult = [[NSUserDefaults standardUserDefaults] boolForKey:@"AppleScrollerPagingBehavior"];
}
break;
case eIntID_ChosenMenuItemsShouldBlink:
aResult = 1;
break;
case eIntID_IMERawInputUnderlineStyle:
case eIntID_IMEConvertedTextUnderlineStyle:
case eIntID_IMESelectedRawTextUnderlineStyle:
case eIntID_IMESelectedConvertedTextUnderline:
aResult = NS_STYLE_TEXT_DECORATION_STYLE_SOLID;
break;
case eIntID_SpellCheckerUnderlineStyle:
aResult = NS_STYLE_TEXT_DECORATION_STYLE_DOTTED;
break;
case eIntID_ScrollbarButtonAutoRepeatBehavior:
aResult = 0;
break;
case eIntID_SwipeAnimationEnabled:
aResult = 0;
if ([NSEvent respondsToSelector:@selector(
isSwipeTrackingFromScrollEventsEnabled)]) {
aResult = [NSEvent isSwipeTrackingFromScrollEventsEnabled] ? 1 : 0;
}
break;
case eIntID_ColorPickerAvailable:
aResult = 1;
break;
case eIntID_ContextMenuOffsetVertical:
aResult = -6;
break;
case eIntID_ContextMenuOffsetHorizontal:
aResult = 1;
break;
default:
aResult = 0;
res = NS_ERROR_FAILURE;
}
return res;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
nsresult
nsLookAndFeel::GetFloatImpl(FloatID aID, float &aResult)
{
nsresult res = nsXPLookAndFeel::GetFloatImpl(aID, aResult);
if (NS_SUCCEEDED(res))
return res;
res = NS_OK;
switch (aID) {
case eFloatID_IMEUnderlineRelativeSize:
aResult = 2.0f;
break;
case eFloatID_SpellCheckerUnderlineRelativeSize:
aResult = 2.0f;
break;
default:
aResult = -1.0;
res = NS_ERROR_FAILURE;
}
return res;
}
bool nsLookAndFeel::UseOverlayScrollbars()
{
return GetInt(eIntID_UseOverlayScrollbars) != 0;
}
bool nsLookAndFeel::SystemWantsOverlayScrollbars()
{
return ([NSScroller respondsToSelector:@selector(preferredScrollerStyle)] &&
[NSScroller preferredScrollerStyle] == mozNSScrollerStyleOverlay);
}
bool nsLookAndFeel::AllowOverlayScrollbarsOverlap()
{
return (UseOverlayScrollbars() && nsCocoaFeatures::OnMountainLionOrLater());
}
bool
nsLookAndFeel::GetFontImpl(FontID aID, nsString &aFontName,
gfxFontStyle &aFontStyle,
float aDevPixPerCSSPixel)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
// hack for now
if (aID == eFont_Window || aID == eFont_Document) {
aFontStyle.style = NS_FONT_STYLE_NORMAL;
aFontStyle.weight = NS_FONT_WEIGHT_NORMAL;
aFontStyle.stretch = NS_FONT_STRETCH_NORMAL;
aFontStyle.size = 14 * aDevPixPerCSSPixel;
aFontStyle.systemFont = true;
aFontName.AssignLiteral("sans-serif");
return true;
}
gfxPlatformMac::LookupSystemFont(aID, aFontName, aFontStyle,
aDevPixPerCSSPixel);
return true;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
nsTArray<LookAndFeelInt>
nsLookAndFeel::GetIntCacheImpl()
{
nsTArray<LookAndFeelInt> lookAndFeelIntCache =
nsXPLookAndFeel::GetIntCacheImpl();
LookAndFeelInt useOverlayScrollbars;
useOverlayScrollbars.id = eIntID_UseOverlayScrollbars;
useOverlayScrollbars.value = GetInt(eIntID_UseOverlayScrollbars);
lookAndFeelIntCache.AppendElement(useOverlayScrollbars);
LookAndFeelInt allowOverlayScrollbarsOverlap;
allowOverlayScrollbarsOverlap.id = eIntID_AllowOverlayScrollbarsOverlap;
allowOverlayScrollbarsOverlap.value = GetInt(eIntID_AllowOverlayScrollbarsOverlap);
lookAndFeelIntCache.AppendElement(allowOverlayScrollbarsOverlap);
return lookAndFeelIntCache;
}
void
nsLookAndFeel::SetIntCacheImpl(const nsTArray<LookAndFeelInt>& aLookAndFeelIntCache)
{
for (auto entry : aLookAndFeelIntCache) {
switch(entry.id) {
case eIntID_UseOverlayScrollbars:
mUseOverlayScrollbars = entry.value;
mUseOverlayScrollbarsCached = true;
break;
case eIntID_AllowOverlayScrollbarsOverlap:
mAllowOverlayScrollbarsOverlap = entry.value;
mAllowOverlayScrollbarsOverlapCached = true;
break;
}
}
}
void
nsLookAndFeel::RefreshImpl()
{
// We should only clear the cache if we're in the main browser process.
// Otherwise, we should wait for the parent to inform us of new values
// to cache via LookAndFeel::SetIntCache.
if (XRE_IsParentProcess()) {
mUseOverlayScrollbarsCached = false;
mAllowOverlayScrollbarsOverlapCached = false;
}
}