gecko-dev/widget/xpwidgets/nsXPLookAndFeel.cpp

749 lines
19 KiB
C++

/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/Util.h"
#include "nscore.h"
#include "nsXPLookAndFeel.h"
#include "nsLookAndFeel.h"
#include "nsCRT.h"
#include "nsFont.h"
#include "mozilla/Preferences.h"
#include "gfxPlatform.h"
#include "qcms.h"
#ifdef DEBUG
#include "nsSize.h"
#endif
using namespace mozilla;
nsLookAndFeelIntPref nsXPLookAndFeel::sIntPrefs[] =
{
{ "ui.caretBlinkTime",
eIntID_CaretBlinkTime,
false, 0 },
{ "ui.caretWidth",
eIntID_CaretWidth,
false, 0 },
{ "ui.caretVisibleWithSelection",
eIntID_ShowCaretDuringSelection,
false, 0 },
{ "ui.submenuDelay",
eIntID_SubmenuDelay,
false, 0 },
{ "ui.dragThresholdX",
eIntID_DragThresholdX,
false, 0 },
{ "ui.dragThresholdY",
eIntID_DragThresholdY,
false, 0 },
{ "ui.useAccessibilityTheme",
eIntID_UseAccessibilityTheme,
false, 0 },
{ "ui.menusCanOverlapOSBar",
eIntID_MenusCanOverlapOSBar,
false, 0 },
{ "ui.showHideScrollbars",
eIntID_ShowHideScrollbars,
false, 0 },
{ "ui.skipNavigatingDisabledMenuItem",
eIntID_SkipNavigatingDisabledMenuItem,
false, 0 },
{ "ui.treeOpenDelay",
eIntID_TreeOpenDelay,
false, 0 },
{ "ui.treeCloseDelay",
eIntID_TreeCloseDelay,
false, 0 },
{ "ui.treeLazyScrollDelay",
eIntID_TreeLazyScrollDelay,
false, 0 },
{ "ui.treeScrollDelay",
eIntID_TreeScrollDelay,
false, 0 },
{ "ui.treeScrollLinesMax",
eIntID_TreeScrollLinesMax,
false, 0 },
{ "accessibility.tabfocus",
eIntID_TabFocusModel,
false, 0 },
{ "ui.alertNotificationOrigin",
eIntID_AlertNotificationOrigin,
false, 0 },
{ "ui.scrollToClick",
eIntID_ScrollToClick,
false, 0 },
{ "ui.IMERawInputUnderlineStyle",
eIntID_IMERawInputUnderlineStyle,
false, 0 },
{ "ui.IMESelectedRawTextUnderlineStyle",
eIntID_IMESelectedRawTextUnderlineStyle,
false, 0 },
{ "ui.IMEConvertedTextUnderlineStyle",
eIntID_IMEConvertedTextUnderlineStyle,
false, 0 },
{ "ui.IMESelectedConvertedTextUnderlineStyle",
eIntID_IMESelectedConvertedTextUnderline,
false, 0 },
{ "ui.SpellCheckerUnderlineStyle",
eIntID_SpellCheckerUnderlineStyle,
false, 0 },
{ "ui.scrollbarButtonAutoRepeatBehavior",
eIntID_ScrollbarButtonAutoRepeatBehavior,
false, 0 },
{ "ui.tooltipDelay",
eIntID_TooltipDelay,
false, 0 },
};
nsLookAndFeelFloatPref nsXPLookAndFeel::sFloatPrefs[] =
{
{ "ui.IMEUnderlineRelativeSize",
eFloatID_IMEUnderlineRelativeSize,
false, 0 },
{ "ui.SpellCheckerUnderlineRelativeSize",
eFloatID_SpellCheckerUnderlineRelativeSize,
false, 0 },
{ "ui.caretAspectRatio",
eFloatID_CaretAspectRatio,
false, 0 },
};
// This array MUST be kept in the same order as the color list in LookAndFeel.h.
/* XXX If you add any strings longer than
* "ui.IMESelectedConvertedTextBackground"
* to the following array then you MUST update the
* sizes of the sColorPrefs array in nsXPLookAndFeel.h
*/
const char nsXPLookAndFeel::sColorPrefs[][38] =
{
"ui.windowBackground",
"ui.windowForeground",
"ui.widgetBackground",
"ui.widgetForeground",
"ui.widgetSelectBackground",
"ui.widgetSelectForeground",
"ui.widget3DHighlight",
"ui.widget3DShadow",
"ui.textBackground",
"ui.textForeground",
"ui.textSelectBackground",
"ui.textSelectForeground",
"ui.textSelectBackgroundDisabled",
"ui.textSelectBackgroundAttention",
"ui.textHighlightBackground",
"ui.textHighlightForeground",
"ui.IMERawInputBackground",
"ui.IMERawInputForeground",
"ui.IMERawInputUnderline",
"ui.IMESelectedRawTextBackground",
"ui.IMESelectedRawTextForeground",
"ui.IMESelectedRawTextUnderline",
"ui.IMEConvertedTextBackground",
"ui.IMEConvertedTextForeground",
"ui.IMEConvertedTextUnderline",
"ui.IMESelectedConvertedTextBackground",
"ui.IMESelectedConvertedTextForeground",
"ui.IMESelectedConvertedTextUnderline",
"ui.SpellCheckerUnderline",
"ui.activeborder",
"ui.activecaption",
"ui.appworkspace",
"ui.background",
"ui.buttonface",
"ui.buttonhighlight",
"ui.buttonshadow",
"ui.buttontext",
"ui.captiontext",
"ui.graytext",
"ui.highlight",
"ui.highlighttext",
"ui.inactiveborder",
"ui.inactivecaption",
"ui.inactivecaptiontext",
"ui.infobackground",
"ui.infotext",
"ui.menu",
"ui.menutext",
"ui.scrollbar",
"ui.threeddarkshadow",
"ui.threedface",
"ui.threedhighlight",
"ui.threedlightshadow",
"ui.threedshadow",
"ui.window",
"ui.windowframe",
"ui.windowtext",
"ui.-moz-buttondefault",
"ui.-moz-field",
"ui.-moz-fieldtext",
"ui.-moz-dialog",
"ui.-moz-dialogtext",
"ui.-moz-dragtargetzone",
"ui.-moz-cellhighlight",
"ui.-moz_cellhighlighttext",
"ui.-moz-html-cellhighlight",
"ui.-moz-html-cellhighlighttext",
"ui.-moz-buttonhoverface",
"ui.-moz_buttonhovertext",
"ui.-moz_menuhover",
"ui.-moz_menuhovertext",
"ui.-moz_menubartext",
"ui.-moz_menubarhovertext",
"ui.-moz_eventreerow",
"ui.-moz_oddtreerow",
"ui.-moz_mac_chrome_active",
"ui.-moz_mac_chrome_inactive",
"ui.-moz-mac-focusring",
"ui.-moz-mac-menuselect",
"ui.-moz-mac-menushadow",
"ui.-moz-mac-menutextdisable",
"ui.-moz-mac-menutextselect",
"ui.-moz_mac_disabledtoolbartext",
"ui.-moz-mac-alternateprimaryhighlight",
"ui.-moz-mac-secondaryhighlight",
"ui.-moz-win-mediatext",
"ui.-moz-win-communicationstext",
"ui.-moz-nativehyperlinktext",
"ui.-moz-comboboxtext",
"ui.-moz-combobox"
};
PRInt32 nsXPLookAndFeel::sCachedColors[LookAndFeel::eColorID_LAST_COLOR] = {0};
PRInt32 nsXPLookAndFeel::sCachedColorBits[COLOR_CACHE_SIZE] = {0};
bool nsXPLookAndFeel::sInitialized = false;
bool nsXPLookAndFeel::sUseNativeColors = true;
nsLookAndFeel* nsXPLookAndFeel::sInstance = nullptr;
bool nsXPLookAndFeel::sShutdown = false;
// static
nsLookAndFeel*
nsXPLookAndFeel::GetInstance()
{
if (sInstance) {
return sInstance;
}
NS_ENSURE_TRUE(!sShutdown, nullptr);
sInstance = new nsLookAndFeel();
return sInstance;
}
// static
void
nsXPLookAndFeel::Shutdown()
{
if (sShutdown) {
return;
}
sShutdown = true;
delete sInstance;
sInstance = nullptr;
}
nsXPLookAndFeel::nsXPLookAndFeel() : LookAndFeel()
{
}
// static
void
nsXPLookAndFeel::IntPrefChanged(nsLookAndFeelIntPref *data)
{
if (!data) {
return;
}
PRInt32 intpref;
nsresult rv = Preferences::GetInt(data->name, &intpref);
if (NS_FAILED(rv)) {
return;
}
data->intVar = intpref;
data->isSet = true;
#ifdef DEBUG_akkana
printf("====== Changed int pref %s to %d\n", data->name, data->intVar);
#endif
}
// static
void
nsXPLookAndFeel::FloatPrefChanged(nsLookAndFeelFloatPref *data)
{
if (!data) {
return;
}
PRInt32 intpref;
nsresult rv = Preferences::GetInt(data->name, &intpref);
if (NS_FAILED(rv)) {
return;
}
data->floatVar = (float)intpref / 100.0f;
data->isSet = true;
#ifdef DEBUG_akkana
printf("====== Changed float pref %s to %f\n", data->name, data->floatVar);
#endif
}
// static
void
nsXPLookAndFeel::ColorPrefChanged (unsigned int index, const char *prefName)
{
nsAutoString colorStr;
nsresult rv = Preferences::GetString(prefName, &colorStr);
if (NS_FAILED(rv)) {
return;
}
if (!colorStr.IsEmpty()) {
nscolor thecolor;
if (colorStr[0] == PRUnichar('#')) {
if (NS_HexToRGB(nsDependentString(colorStr, 1), &thecolor)) {
PRInt32 id = NS_PTR_TO_INT32(index);
CACHE_COLOR(id, thecolor);
}
} else if (NS_ColorNameToRGB(colorStr, &thecolor)) {
PRInt32 id = NS_PTR_TO_INT32(index);
CACHE_COLOR(id, thecolor);
#ifdef DEBUG_akkana
printf("====== Changed color pref %s to 0x%lx\n",
prefName, thecolor);
#endif
}
} else {
// Reset to the default color, by clearing the cache
// to force lookup when the color is next used
PRInt32 id = NS_PTR_TO_INT32(index);
CLEAR_COLOR_CACHE(id);
}
}
void
nsXPLookAndFeel::InitFromPref(nsLookAndFeelIntPref* aPref)
{
PRInt32 intpref;
nsresult rv = Preferences::GetInt(aPref->name, &intpref);
if (NS_SUCCEEDED(rv)) {
aPref->isSet = true;
aPref->intVar = intpref;
}
}
void
nsXPLookAndFeel::InitFromPref(nsLookAndFeelFloatPref* aPref)
{
PRInt32 intpref;
nsresult rv = Preferences::GetInt(aPref->name, &intpref);
if (NS_SUCCEEDED(rv)) {
aPref->isSet = true;
aPref->floatVar = (float)intpref / 100.0f;
}
}
void
nsXPLookAndFeel::InitColorFromPref(PRInt32 i)
{
nsAutoString colorStr;
nsresult rv = Preferences::GetString(sColorPrefs[i], &colorStr);
if (NS_FAILED(rv) || colorStr.IsEmpty()) {
return;
}
nscolor thecolor;
if (colorStr[0] == PRUnichar('#')) {
nsAutoString hexString;
colorStr.Right(hexString, colorStr.Length() - 1);
if (NS_HexToRGB(hexString, &thecolor)) {
CACHE_COLOR(i, thecolor);
}
} else if (NS_ColorNameToRGB(colorStr, &thecolor)) {
CACHE_COLOR(i, thecolor);
}
}
// static
int
nsXPLookAndFeel::OnPrefChanged(const char* aPref, void* aClosure)
{
// looping in the same order as in ::Init
nsDependentCString prefName(aPref);
unsigned int i;
for (i = 0; i < ArrayLength(sIntPrefs); ++i) {
if (prefName.Equals(sIntPrefs[i].name)) {
IntPrefChanged(&sIntPrefs[i]);
return 0;
}
}
for (i = 0; i < ArrayLength(sFloatPrefs); ++i) {
if (prefName.Equals(sFloatPrefs[i].name)) {
FloatPrefChanged(&sFloatPrefs[i]);
return 0;
}
}
for (i = 0; i < ArrayLength(sColorPrefs); ++i) {
if (prefName.Equals(sColorPrefs[i])) {
ColorPrefChanged(i, sColorPrefs[i]);
return 0;
}
}
return 0;
}
//
// Read values from the user's preferences.
// This is done once at startup, but since the user's preferences
// haven't actually been read yet at that time, we also have to
// set a callback to inform us of changes to each pref.
//
void
nsXPLookAndFeel::Init()
{
// Say we're already initialized, and take the chance that it might fail;
// protects against some other process writing to our static variables.
sInitialized = true;
// XXX If we could reorganize the pref names, we should separate the branch
// for each types. Then, we could reduce the unnecessary loop from
// nsXPLookAndFeel::OnPrefChanged().
Preferences::RegisterCallback(OnPrefChanged, "ui.");
Preferences::RegisterCallback(OnPrefChanged, "accessibility.tabfocus");
unsigned int i;
for (i = 0; i < ArrayLength(sIntPrefs); ++i) {
InitFromPref(&sIntPrefs[i]);
}
for (i = 0; i < ArrayLength(sFloatPrefs); ++i) {
InitFromPref(&sFloatPrefs[i]);
}
for (i = 0; i < ArrayLength(sColorPrefs); ++i) {
InitColorFromPref(i);
}
bool val;
if (NS_SUCCEEDED(Preferences::GetBool("ui.use_native_colors", &val))) {
sUseNativeColors = val;
}
}
nsXPLookAndFeel::~nsXPLookAndFeel()
{
NS_ASSERTION(sInstance == this,
"This destroying instance isn't the singleton instance");
sInstance = nullptr;
}
bool
nsXPLookAndFeel::IsSpecialColor(ColorID aID, nscolor &aColor)
{
switch (aID) {
case eColorID_TextSelectForeground:
return (aColor == NS_DONT_CHANGE_COLOR);
case eColorID_IMESelectedRawTextBackground:
case eColorID_IMESelectedConvertedTextBackground:
case eColorID_IMERawInputBackground:
case eColorID_IMEConvertedTextBackground:
case eColorID_IMESelectedRawTextForeground:
case eColorID_IMESelectedConvertedTextForeground:
case eColorID_IMERawInputForeground:
case eColorID_IMEConvertedTextForeground:
case eColorID_IMERawInputUnderline:
case eColorID_IMEConvertedTextUnderline:
case eColorID_IMESelectedRawTextUnderline:
case eColorID_IMESelectedConvertedTextUnderline:
case eColorID_SpellCheckerUnderline:
return NS_IS_SELECTION_SPECIAL_COLOR(aColor);
default:
/*
* In GetColor(), every color that is not a special color is color
* corrected. Use false to make other colors color corrected.
*/
return false;
}
return false;
}
//
// All these routines will return NS_OK if they have a value,
// in which case the nsLookAndFeel should use that value;
// otherwise we'll return NS_ERROR_NOT_AVAILABLE, in which case, the
// platform-specific nsLookAndFeel should use its own values instead.
//
nsresult
nsXPLookAndFeel::GetColorImpl(ColorID aID, nscolor &aResult)
{
if (!sInitialized)
Init();
// define DEBUG_SYSTEM_COLOR_USE if you want to debug system color
// use in a skin that uses them. When set, it will make all system
// color pairs that are appropriate for foreground/background
// pairing the same. This means if the skin is using system colors
// correctly you will not be able to see *any* text.
#undef DEBUG_SYSTEM_COLOR_USE
#ifdef DEBUG_SYSTEM_COLOR_USE
{
nsresult rv = NS_OK;
switch (aID) {
// css2 http://www.w3.org/TR/REC-CSS2/ui.html#system-colors
case eColorID_activecaption:
// active window caption background
case eColorID_captiontext:
// text in active window caption
aResult = NS_RGB(0xff, 0x00, 0x00);
break;
case eColorID_highlight:
// background of selected item
case eColorID_highlighttext:
// text of selected item
aResult = NS_RGB(0xff, 0xff, 0x00);
break;
case eColorID_inactivecaption:
// inactive window caption
case eColorID_inactivecaptiontext:
// text in inactive window caption
aResult = NS_RGB(0x66, 0x66, 0x00);
break;
case eColorID_infobackground:
// tooltip background color
case eColorID_infotext:
// tooltip text color
aResult = NS_RGB(0x00, 0xff, 0x00);
break;
case eColorID_menu:
// menu background
case eColorID_menutext:
// menu text
aResult = NS_RGB(0x00, 0xff, 0xff);
break;
case eColorID_threedface:
case eColorID_buttonface:
// 3-D face color
case eColorID_buttontext:
// text on push buttons
aResult = NS_RGB(0x00, 0x66, 0x66);
break;
case eColorID_window:
case eColorID_windowtext:
aResult = NS_RGB(0x00, 0x00, 0xff);
break;
// from the CSS3 working draft (not yet finalized)
// http://www.w3.org/tr/2000/wd-css3-userint-20000216.html#color
case eColorID__moz_field:
case eColorID__moz_fieldtext:
aResult = NS_RGB(0xff, 0x00, 0xff);
break;
case eColorID__moz_dialog:
case eColorID__moz_dialogtext:
aResult = NS_RGB(0x66, 0x00, 0x66);
break;
default:
rv = NS_ERROR_NOT_AVAILABLE;
}
if (NS_SUCCEEDED(rv))
return rv;
}
#endif // DEBUG_SYSTEM_COLOR_USE
if (IS_COLOR_CACHED(aID)) {
aResult = sCachedColors[aID];
return NS_OK;
}
// There are no system color settings for these, so set them manually
if (aID == eColorID_TextSelectBackgroundDisabled) {
// This is used to gray out the selection when it's not focused
// Used with nsISelectionController::SELECTION_DISABLED
aResult = NS_RGB(0xb0, 0xb0, 0xb0);
return NS_OK;
}
if (aID == eColorID_TextSelectBackgroundAttention) {
// This makes the selection stand out when typeaheadfind is on
// Used with nsISelectionController::SELECTION_ATTENTION
aResult = NS_RGB(0x38, 0xd8, 0x78);
return NS_OK;
}
if (aID == eColorID_TextHighlightBackground) {
// This makes the matched text stand out when findbar highlighting is on
// Used with nsISelectionController::SELECTION_FIND
aResult = NS_RGB(0xef, 0x0f, 0xff);
return NS_OK;
}
if (aID == eColorID_TextHighlightForeground) {
// The foreground color for the matched text in findbar highlighting
// Used with nsISelectionController::SELECTION_FIND
aResult = NS_RGB(0xff, 0xff, 0xff);
return NS_OK;
}
if (sUseNativeColors && NS_SUCCEEDED(NativeGetColor(aID, aResult))) {
if ((gfxPlatform::GetCMSMode() == eCMSMode_All) &&
!IsSpecialColor(aID, aResult)) {
qcms_transform *transform = gfxPlatform::GetCMSInverseRGBTransform();
if (transform) {
PRUint8 color[3];
color[0] = NS_GET_R(aResult);
color[1] = NS_GET_G(aResult);
color[2] = NS_GET_B(aResult);
qcms_transform_data(transform, color, color, 1);
aResult = NS_RGB(color[0], color[1], color[2]);
}
}
CACHE_COLOR(aID, aResult);
return NS_OK;
}
return NS_ERROR_NOT_AVAILABLE;
}
nsresult
nsXPLookAndFeel::GetIntImpl(IntID aID, PRInt32 &aResult)
{
if (!sInitialized)
Init();
// Set the default values for these prefs. but allow different platforms
// to override them in their nsLookAndFeel if desired.
switch (aID) {
case eIntID_ScrollButtonLeftMouseButtonAction:
aResult = 0;
return NS_OK;
case eIntID_ScrollButtonMiddleMouseButtonAction:
aResult = 3;
return NS_OK;
case eIntID_ScrollButtonRightMouseButtonAction:
aResult = 3;
return NS_OK;
default:
/*
* The metrics above are hardcoded platform defaults. All the other
* metrics are stored in sIntPrefs and can be changed at runtime.
*/
break;
}
for (unsigned int i = 0; i < ArrayLength(sIntPrefs); ++i) {
if (sIntPrefs[i].isSet && (sIntPrefs[i].id == aID)) {
aResult = sIntPrefs[i].intVar;
return NS_OK;
}
}
return NS_ERROR_NOT_AVAILABLE;
}
nsresult
nsXPLookAndFeel::GetFloatImpl(FloatID aID, float &aResult)
{
if (!sInitialized)
Init();
for (unsigned int i = 0; i < ArrayLength(sFloatPrefs); ++i) {
if (sFloatPrefs[i].isSet && sFloatPrefs[i].id == aID) {
aResult = sFloatPrefs[i].floatVar;
return NS_OK;
}
}
return NS_ERROR_NOT_AVAILABLE;
}
void
nsXPLookAndFeel::RefreshImpl()
{
// Wipe out our color cache.
PRUint32 i;
for (i = 0; i < eColorID_LAST_COLOR; i++)
sCachedColors[i] = 0;
for (i = 0; i < COLOR_CACHE_SIZE; i++)
sCachedColorBits[i] = 0;
}
namespace mozilla {
// static
nsresult
LookAndFeel::GetColor(ColorID aID, nscolor* aResult)
{
return nsLookAndFeel::GetInstance()->GetColorImpl(aID, *aResult);
}
// static
nsresult
LookAndFeel::GetInt(IntID aID, PRInt32* aResult)
{
return nsLookAndFeel::GetInstance()->GetIntImpl(aID, *aResult);
}
// static
nsresult
LookAndFeel::GetFloat(FloatID aID, float* aResult)
{
return nsLookAndFeel::GetInstance()->GetFloatImpl(aID, *aResult);
}
// static
bool
LookAndFeel::GetFont(FontID aID, nsString& aName, gfxFontStyle& aStyle)
{
return nsLookAndFeel::GetInstance()->GetFontImpl(aID, aName, aStyle);
}
// static
PRUnichar
LookAndFeel::GetPasswordCharacter()
{
return nsLookAndFeel::GetInstance()->GetPasswordCharacterImpl();
}
// static
bool
LookAndFeel::GetEchoPassword()
{
return nsLookAndFeel::GetInstance()->GetEchoPasswordImpl();
}
// static
PRUint32
LookAndFeel::GetPasswordMaskDelay()
{
return nsLookAndFeel::GetInstance()->GetPasswordMaskDelayImpl();
}
// static
void
LookAndFeel::Refresh()
{
nsLookAndFeel::GetInstance()->RefreshImpl();
}
} // namespace mozilla