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Bug 1736518 - Make browser.tabs.drawInTitlebar a tri-state. r=stransky,Gijs

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To more properly support Linux having a different default at runtime.

Expose the resolved value in appinfo for convenience, and use it in the
front-end as needed.

Differential Revision: https://phabricator.services.mozilla.com/D129004
This commit is contained in:
Emilio Cobos Álvarez
2021-10-21 09:07:12 +00:00
parent c6cd2d6005
commit d37eb95bc7
26 changed files with 112 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
browser/app/profile/firefox.js
View File

@@ -629,11 +629,6 @@ pref("browser.tabs.tabMinWidth", 76);
// secondary text on tabs hidden due to size constraints and readability
// of the text at small font sizes.
pref("browser.tabs.secondaryTextUnsupportedLocales", "ar,bn,bo,ckb,fa,gu,he,hi,ja,km,kn,ko,lo,mr,my,ne,pa,si,ta,te,th,ur,zh");
// Initial titlebar state is managed by -moz-gtk-csd-hide-titlebar-by-default
// on Linux.
#ifndef UNIX_BUT_NOT_MAC
pref("browser.tabs.drawInTitlebar", true);
#endif
//Control the visibility of Tab Manager Menu.
pref("browser.tabs.tabmanager.enabled", false);

5
browser/base/content/browser-tabsintitlebar.js
View File

@@ -54,10 +54,7 @@ var TabsInTitlebar = {
_prefName: "browser.tabs.drawInTitlebar",
_readPref() {
let hiddenTitlebar = Services.prefs.getBoolPref(
"browser.tabs.drawInTitlebar",
window.matchMedia("(-moz-gtk-csd-hide-titlebar-by-default)").matches
);
let hiddenTitlebar = Services.appinfo.drawInTitlebar;
this.allowedBy("pref", hiddenTitlebar);
},

6
browser/base/content/test/popups/browser_popupUI.js
View File

@@ -61,8 +61,8 @@ add_task(async function titlebar_buttons_visibility() {
Services.prefs.setIntPref("browser.link.open_newwindow", 2);
const drawInTitlebarValues = [
[true, BUTTONS_MAY_VISIBLE],
[false, BUTTONS_NEVER_VISIBLE],
[1, BUTTONS_MAY_VISIBLE],
[0, BUTTONS_NEVER_VISIBLE],
];
const windowFeaturesValues = [
// Opens a popup
@@ -77,7 +77,7 @@ add_task(async function titlebar_buttons_visibility() {
const menuBarShownValues = [true, false];
for (const [drawInTitlebar, drawInTitlebarButtons] of drawInTitlebarValues) {
Services.prefs.setBoolPref("browser.tabs.drawInTitlebar", drawInTitlebar);
Services.prefs.setIntPref("browser.tabs.drawInTitlebar", drawInTitlebar);
for (const [
windowFeatures,

2
browser/base/content/test/startup/browser_preXULSkeletonUIRegistry.js
View File

@@ -71,7 +71,7 @@ add_task(async function testWritesEnabledOnPrefChange() {
is(enabled, 0, "Pre-XUL skeleton UI is disabled in the Windows registry");
Services.prefs.setBoolPref("browser.startup.preXulSkeletonUI", true);
Services.prefs.setBoolPref("browser.tabs.drawInTitlebar", false);
Services.prefs.setIntPref("browser.tabs.drawInTitlebar", 0);
enabled = WindowsRegistry.readRegKey(
Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
"Software\\Mozilla\\Firefox\\PreXULSkeletonUISettings",

5
browser/components/BrowserGlue.jsm
View File

@@ -800,10 +800,7 @@ let JSWINDOWACTORS = {
);
// Hide the titlebar if the actual browser window will draw in it.
let hiddenTitlebar = Services.prefs.getBoolPref(
"browser.tabs.drawInTitlebar",
win.matchMedia("(-moz-gtk-csd-hide-titlebar-by-default)").matches
);
let hiddenTitlebar = Services.appinfo.drawInTitlebar;
if (hiddenTitlebar) {
win.windowUtils.setChromeMargin(0, 2, 2, 2);
}

10
browser/components/customizableui/CustomizableUI.jsm
View File

@@ -3151,12 +3151,8 @@ var CustomizableUIInternal = {
_resetUIState() {
try {
// kPrefDrawInTitlebar may not be defined on Linux/Gtk+ which throws an exception
// and leads to whole test failure. Let's set a fallback default value to avoid that,
// both titlebar states are tested anyway and it's not important which state is tested first.
gUIStateBeforeReset.drawInTitlebar = Services.prefs.getBoolPref(
kPrefDrawInTitlebar,
false
gUIStateBeforeReset.drawInTitlebar = Services.prefs.getIntPref(
kPrefDrawInTitlebar
);
gUIStateBeforeReset.uiCustomizationState = Services.prefs.getCharPref(
kPrefCustomizationState
@@ -3246,7 +3242,7 @@ var CustomizableUIInternal = {
this._clearPreviousUIState();
Services.prefs.setCharPref(kPrefCustomizationState, uiCustomizationState);
Services.prefs.setBoolPref(kPrefDrawInTitlebar, drawInTitlebar);
Services.prefs.setIntPref(kPrefDrawInTitlebar, drawInTitlebar);
Services.prefs.setIntPref(kPrefUIDensity, uiDensity);
Services.prefs.setBoolPref(kPrefAutoTouchMode, autoTouchMode);
Services.prefs.setBoolPref(

7
browser/components/customizableui/CustomizeMode.jsm
View File

@@ -1715,10 +1715,7 @@ CustomizeMode.prototype = {
},
_updateTitlebarCheckbox() {
let drawInTitlebar = Services.prefs.getBoolPref(
kDrawInTitlebarPref,
this.window.matchMedia("(-moz-gtk-csd-hide-titlebar-by-default)").matches
);
let drawInTitlebar = Services.appinfo.drawInTitlebar;
let checkbox = this.$("customization-titlebar-visibility-checkbox");
// Drawing in the titlebar means 'hiding' the titlebar.
// We use the attribute rather than a property because if we're not in
@@ -1732,7 +1729,7 @@ CustomizeMode.prototype = {
toggleTitlebar(aShouldShowTitlebar) {
// Drawing in the titlebar means not showing the titlebar, hence the negation:
Services.prefs.setBoolPref(kDrawInTitlebarPref, !aShouldShowTitlebar);
Services.prefs.setIntPref(kDrawInTitlebarPref, !aShouldShowTitlebar);
},
_getBoundsWithoutFlushing(element) {

40
browser/components/customizableui/test/browser_970511_undo_restore_default.js
View File

@@ -142,11 +142,16 @@ add_task(async function() {
// Bug 971626 - Restore Defaults should collapse the Title Bar
add_task(async function() {
if (Services.appinfo.OS != "WINNT" && Services.appinfo.OS != "Darwin") {
{
const supported = TabsInTitlebar.systemSupported;
is(typeof supported, "boolean");
info("TabsInTitlebar support: " + supported);
if (!supported) {
return;
}
let prefName = "browser.tabs.drawInTitlebar";
let defaultValue = Services.prefs.getBoolPref(prefName);
}
const kDefaultValue = Services.appinfo.drawInTitlebar;
let restoreDefaultsButton = document.getElementById(
"customization-reset-button"
);
@@ -166,7 +171,7 @@ add_task(async function() {
);
is(
titlebarCheckbox.hasAttribute("checked"),
!defaultValue,
!kDefaultValue,
"Title bar checkbox should reflect pref value"
);
is(
@@ -175,14 +180,20 @@ add_task(async function() {
"Undo reset button should be hidden at start of test"
);
Services.prefs.setBoolPref(prefName, !defaultValue);
let prefName = "browser.tabs.drawInTitlebar";
Services.prefs.setIntPref(prefName, !kDefaultValue);
ok(
!restoreDefaultsButton.disabled,
"Restore defaults button should be enabled when pref changed"
);
is(
Services.appinfo.drawInTitlebar,
!kDefaultValue,
"Title bar checkbox should reflect changed pref value"
);
is(
titlebarCheckbox.hasAttribute("checked"),
defaultValue,
kDefaultValue,
"Title bar checkbox should reflect changed pref value"
);
ok(
@@ -202,14 +213,19 @@ add_task(async function() {
);
is(
titlebarCheckbox.hasAttribute("checked"),
!defaultValue,
!kDefaultValue,
"Title bar checkbox should reflect default value after reset"
);
is(
Services.prefs.getBoolPref(prefName),
defaultValue,
Services.prefs.getIntPref(prefName),
2,
"Reset should reset drawInTitlebar"
);
is(
Services.appinfo.drawInTitlebar,
kDefaultValue,
"Default state should be restored"
);
ok(CustomizableUI.inDefaultState, "In default state after titlebar reset");
is(
undoResetButton.hidden,
@@ -228,13 +244,13 @@ add_task(async function() {
);
is(
titlebarCheckbox.hasAttribute("checked"),
defaultValue,
kDefaultValue,
"Title bar checkbox should reflect undo-reset value"
);
ok(!CustomizableUI.inDefaultState, "No longer in default state after undo");
is(
Services.prefs.getBoolPref(prefName),
!defaultValue,
Services.prefs.getIntPref(prefName),
kDefaultValue ? 0 : 1,
"Undo-reset goes back to previous pref value"
);
is(

11
browser/modules/BrowserUsageTelemetry.jsm
View File

@@ -497,9 +497,7 @@ let BrowserUsageTelemetry = {
case "browser.tabs.drawInTitlebar":
this._recordWidgetChange(
"titlebar",
Services.prefs.getBoolPref("browser.tabs.drawInTitlebar")
? "off"
: "on",
Services.appinfo.drawInTitlebar ? "off" : "on",
"pref"
);
break;
@@ -601,12 +599,7 @@ let BrowserUsageTelemetry = {
widgetMap.set("menu-toolbar", menuBarHidden ? "off" : "on");
// Drawing in the titlebar means not showing the titlebar, hence the negation.
widgetMap.set(
"titlebar",
Services.prefs.getBoolPref("browser.tabs.drawInTitlebar", true)
? "off"
: "on"
);
widgetMap.set("titlebar", Services.appinfo.drawInTitlebar ? "off" : "on");
for (let area of CustomizableUI.areas) {
if (!(area in BROWSER_UI_CONTAINER_IDS)) {

2
browser/modules/test/browser/browser_UsageTelemetry_toolbars.js
View File

@@ -111,7 +111,7 @@ function organizeToolbars(state = {}) {
targetState.personalToolbarVisible
);
Services.prefs.setBoolPref(
Services.prefs.setIntPref(
"browser.tabs.drawInTitlebar",
!targetState.titlebarVisible
);

7
browser/tools/mozscreenshots/mozscreenshots/extension/configurations/TabsInTitlebar.jsm
View File

@@ -17,10 +17,7 @@ var TabsInTitlebar = {
tabsInTitlebar: {
selectors: ["#navigator-toolbox"],
async applyConfig() {
if (Services.appinfo.OS == "Linux") {
return "TabsInTitlebar isn't supported on Linux";
}
Services.prefs.setBoolPref(PREF_TABS_IN_TITLEBAR, true);
Services.prefs.setIntPref(PREF_TABS_IN_TITLEBAR, 1);
return undefined;
},
},
@@ -30,7 +27,7 @@ var TabsInTitlebar = {
Services.appinfo.OS == "Linux" ? [] : ["#titlebar"]
),
async applyConfig() {
Services.prefs.setBoolPref(PREF_TABS_IN_TITLEBAR, false);
Services.prefs.setIntPref(PREF_TABS_IN_TITLEBAR, 0);
},
},
},

1
layout/style/test/chrome/bug418986-2.js
View File

@@ -61,7 +61,6 @@ var suppressed_toggles = [
"-moz-windows-default-theme",
"-moz-windows-glass",
"-moz-gtk-csd-available",
"-moz-gtk-csd-hide-titlebar-by-default",
"-moz-gtk-csd-minimize-button",
"-moz-gtk-csd-maximize-button",
"-moz-gtk-csd-close-button",

1
layout/style/test/chrome/chrome-only-media-queries.js
View File

@@ -21,7 +21,6 @@ const CHROME_ONLY_TOGGLES = [
"-moz-windows-non-native-menus",
"-moz-swipe-animation-enabled",
"-moz-gtk-csd-available",
"-moz-gtk-csd-hide-titlebar-by-default",
"-moz-gtk-csd-minimize-button",
"-moz-gtk-csd-maximize-button",
"-moz-gtk-csd-close-button",

8
modules/libpref/init/StaticPrefList.yaml
View File

@@ -1300,6 +1300,14 @@
value: false
mirror: always
# Whether we should draw the tabs on top of the titlebar.
#
# no (0), yes (1), or default (2), which is true everywhere except Linux.
- name: browser.tabs.drawInTitlebar
type: int32_t
value: 2
mirror: always
# If set, use DocumentChannel to directly initiate loads entirely
# from parent-process BrowsingContexts
- name: browser.tabs.documentchannel.parent-controlled

3
servo/components/style/gecko/media_features.rs
View File

@@ -651,7 +651,7 @@ macro_rules! bool_pref_feature {
/// to support new types in these entries and (2) ensuring that either
/// nsPresContext::MediaFeatureValuesChanged is called when the value that
/// would be returned by the evaluator function could change.
pub static MEDIA_FEATURES: [MediaFeatureDescription; 59] = [
pub static MEDIA_FEATURES: [MediaFeatureDescription; 58] = [
feature!(
atom!("width"),
AllowsRanges::Yes,
@@ -890,7 +890,6 @@ pub static MEDIA_FEATURES: [MediaFeatureDescription; 59] = [
lnf_int_feature!(atom!("-moz-windows-glass"), WindowsGlass),
lnf_int_feature!(atom!("-moz-swipe-animation-enabled"), SwipeAnimationEnabled),
lnf_int_feature!(atom!("-moz-gtk-csd-available"), GTKCSDAvailable),
lnf_int_feature!(atom!("-moz-gtk-csd-hide-titlebar-by-default"), GTKCSDHideTitlebarByDefault),
lnf_int_feature!(atom!("-moz-gtk-csd-minimize-button"), GTKCSDMinimizeButton),
lnf_int_feature!(atom!("-moz-gtk-csd-maximize-button"), GTKCSDMaximizeButton),
lnf_int_feature!(atom!("-moz-gtk-csd-close-button"), GTKCSDCloseButton),

15
toolkit/xre/nsAppRunner.cpp
View File

@@ -23,6 +23,7 @@
#include "mozilla/Printf.h"
#include "mozilla/ResultExtensions.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/StaticPrefs_browser.h"
#include "mozilla/StaticPrefs_fission.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Utf8.h"
@@ -276,7 +277,6 @@ static const char kPrefThemeId[] = "extensions.activeThemeID";
static const char kPrefBrowserStartupBlankWindow[] =
"browser.startup.blankWindow";
static const char kPrefPreXulSkeletonUI[] = "browser.startup.preXulSkeletonUI";
static const char kPrefDrawTabsInTitlebar[] = "browser.tabs.drawInTitlebar";
#endif // defined(XP_WIN)
int gArgc;
@@ -1331,6 +1331,12 @@ nsXULAppInfo::GetChromeColorSchemeIsDark(bool* aResult) {
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetDrawInTitlebar(bool* aResult) {
*aResult = LookAndFeel::DrawInTitlebar();
return NS_OK;
}
NS_IMETHODIMP
nsXULAppInfo::GetProcessStartupShortcut(nsAString& aShortcut) {
#if defined(XP_WIN)
@@ -1996,7 +2002,7 @@ static void ReflectSkeletonUIPrefToRegistry(const char* aPref, void* aData) {
bool shouldBeEnabled =
Preferences::GetBool(kPrefPreXulSkeletonUI, false) &&
Preferences::GetBool(kPrefBrowserStartupBlankWindow, false) &&
Preferences::GetBool(kPrefDrawTabsInTitlebar, false);
LookAndFeel::DrawInTitlebar();
if (shouldBeEnabled && Preferences::HasUserValue(kPrefThemeId)) {
nsCString themeId;
Preferences::GetCString(kPrefThemeId, themeId);
@@ -2025,8 +2031,9 @@ static void SetupSkeletonUIPrefs() {
Preferences::RegisterCallback(&ReflectSkeletonUIPrefToRegistry,
kPrefBrowserStartupBlankWindow);
Preferences::RegisterCallback(&ReflectSkeletonUIPrefToRegistry, kPrefThemeId);
Preferences::RegisterCallback(&ReflectSkeletonUIPrefToRegistry,
kPrefDrawTabsInTitlebar);
Preferences::RegisterCallback(
&ReflectSkeletonUIPrefToRegistry,
nsDependentCString(StaticPrefs::GetPrefName_browser_tabs_drawInTitlebar()));
}
# if defined(MOZ_LAUNCHER_PROCESS)

11
widget/LookAndFeel.h
View File

@@ -246,12 +246,6 @@ class LookAndFeel {
*/
GTKCSDAvailable,
/*
* A boolean value indicating whether GTK+ system titlebar should be
* disabled by default.
*/
GTKCSDHideTitlebarByDefault,
/*
* A boolean value indicating whether client-side decorations should
* contain a minimize button.
@@ -509,6 +503,11 @@ class LookAndFeel {
*/
static bool GetEchoPassword();
/**
* Whether we should be drawing in the titlebar by default.
*/
static bool DrawInTitlebar();
/**
* The millisecond to mask password value.
* This value is only valid when GetEchoPassword() returns true.

28
widget/gtk/nsLookAndFeel.cpp
View File

@@ -789,10 +789,6 @@ nsresult nsLookAndFeel::NativeGetInt(IntID aID, int32_t& aResult) {
EnsureInit();
aResult = mCSDAvailable;
break;
case IntID::GTKCSDHideTitlebarByDefault:
EnsureInit();
aResult = mCSDHideTitlebarByDefault;
break;
case IntID::GTKCSDMaximizeButton:
EnsureInit();
aResult = mCSDMaximizeButton;
@@ -1246,7 +1242,6 @@ void nsLookAndFeel::EnsureInit() {
mCSDAvailable =
nsWindow::GtkWindowDecoration() != nsWindow::GTK_DECORATION_NONE;
mCSDHideTitlebarByDefault = nsWindow::HideTitlebarByDefault();
mSystemTheme.Init();
@@ -1840,6 +1835,29 @@ char16_t nsLookAndFeel::GetPasswordCharacterImpl() {
bool nsLookAndFeel::GetEchoPasswordImpl() { return false; }
bool nsLookAndFeel::GetDefaultDrawInTitlebar() {
static bool drawInTitlebar = []() {
// When user defined widget.default-hidden-titlebar don't do any
// heuristics and just follow it.
if (Preferences::HasUserValue("widget.default-hidden-titlebar")) {
return Preferences::GetBool("widget.default-hidden-titlebar", false);
}
// Don't hide titlebar when it's disabled on current desktop.
const char* currentDesktop = getenv("XDG_CURRENT_DESKTOP");
if (!currentDesktop || nsWindow::GetSystemGtkWindowDecoration() ==
nsWindow::GTK_DECORATION_NONE) {
return false;
}
// We hide system titlebar on Gnome/ElementaryOS without any restriction.
return strstr(currentDesktop, "GNOME-Flashback:GNOME") ||
strstr(currentDesktop, "GNOME") ||
strstr(currentDesktop, "Pantheon");
}();
return drawInTitlebar;
}
void nsLookAndFeel::GetThemeInfo(nsACString& aInfo) {
aInfo.Append(mSystemTheme.mName);
aInfo.Append(" / ");

3
widget/gtk/nsLookAndFeel.h
View File

@@ -32,6 +32,8 @@ class nsLookAndFeel final : public nsXPLookAndFeel {
char16_t GetPasswordCharacterImpl() override;
bool GetEchoPasswordImpl() override;
bool GetDefaultDrawInTitlebar() override;
template <typename Callback>
void WithAltThemeConfigured(const Callback&);
@@ -155,7 +157,6 @@ class nsLookAndFeel final : public nsXPLookAndFeel {
int32_t mCaretBlinkTime = 0;
int32_t mCaretBlinkCount = -1;
bool mCSDAvailable = false;
bool mCSDHideTitlebarByDefault = false;
bool mCSDMaximizeButton = false;
bool mCSDMinimizeButton = false;
bool mCSDCloseButton = false;

23
widget/gtk/nsWindow.cpp
View File

@@ -8720,29 +8720,6 @@ bool nsWindow::TitlebarUseShapeMask() {
return useShapeMask;
}
bool nsWindow::HideTitlebarByDefault() {
static int hideTitlebar = []() {
// When user defined widget.default-hidden-titlebar don't do any
// heuristics and just follow it.
if (Preferences::HasUserValue("widget.default-hidden-titlebar")) {
return Preferences::GetBool("widget.default-hidden-titlebar", false);
}
// Don't hide titlebar when it's disabled on current desktop.
const char* currentDesktop = getenv("XDG_CURRENT_DESKTOP");
if (!currentDesktop ||
GetSystemGtkWindowDecoration() == GTK_DECORATION_NONE) {
return false;
}
// We hide system titlebar on Gnome/ElementaryOS without any restriction.
return ((strstr(currentDesktop, "GNOME-Flashback:GNOME") != nullptr ||
strstr(currentDesktop, "GNOME") != nullptr ||
strstr(currentDesktop, "Pantheon") != nullptr));
}();
return hideTitlebar;
}
int32_t nsWindow::RoundsWidgetCoordinatesTo() { return GdkCeiledScaleFactor(); }
void nsWindow::GetCompositorWidgetInitData(

1
widget/gtk/nsWindow.h
View File

@@ -367,7 +367,6 @@ class nsWindow final : public nsBaseWidget {
*/
static GtkWindowDecoration GetSystemGtkWindowDecoration();
static bool HideTitlebarByDefault();
static bool GetTopLevelWindowActiveState(nsIFrame* aFrame);
static bool TitlebarUseShapeMask();
bool IsRemoteContent() { return HasRemoteContent(); }

1
widget/headless/HeadlessLookAndFeelGTK.cpp
View File

@@ -256,7 +256,6 @@ nsresult HeadlessLookAndFeel::NativeGetInt(IntID aID, int32_t& aResult) {
aResult = 1;
break;
case IntID::GTKCSDAvailable:
case IntID::GTKCSDHideTitlebarByDefault:
aResult = 0;
break;
case IntID::GTKCSDMinimizeButton:

13
widget/nsXPLookAndFeel.cpp
View File

@@ -160,7 +160,6 @@ static const char sIntPrefs[][43] = {
"ui.contextMenuOffsetVertical",
"ui.contextMenuOffsetHorizontal",
"ui.GtkCSDAvailable",
"ui.GtkCSDHideTitlebarByDefault",
"ui.GtkCSDMinimizeButton",
"ui.GtkCSDMaximizeButton",
"ui.GtkCSDCloseButton",
@@ -1266,6 +1265,18 @@ uint32_t LookAndFeel::GetPasswordMaskDelay() {
return delay;
}
bool LookAndFeel::DrawInTitlebar() {
switch (StaticPrefs::browser_tabs_drawInTitlebar()) {
case 0:
return false;
case 1:
return true;
default:
break;
}
return nsLookAndFeel::GetInstance()->GetDefaultDrawInTitlebar();
}
void LookAndFeel::GetThemeInfo(nsACString& aOut) {
nsLookAndFeel::GetInstance()->GetThemeInfo(aOut);
}

2
widget/nsXPLookAndFeel.h
View File

@@ -56,6 +56,8 @@ class nsXPLookAndFeel : public mozilla::LookAndFeel {
virtual uint32_t GetPasswordMaskDelayImpl() { return 600; }
virtual bool GetDefaultDrawInTitlebar() { return true; }
static bool LookAndFeelFontToStyle(const LookAndFeelFont&, nsString& aName,
gfxFontStyle&);
static LookAndFeelFont StyleToLookAndFeelFont(const nsAString& aName,

1
xpcom/ds/StaticAtoms.py
View File

@@ -2225,7 +2225,6 @@ STATIC_ATOMS = [
Atom("_moz_is_resource_document", "-moz-is-resource-document"),
Atom("_moz_swipe_animation_enabled", "-moz-swipe-animation-enabled"),
Atom("_moz_gtk_csd_available", "-moz-gtk-csd-available"),
Atom("_moz_gtk_csd_hide_titlebar_by_default", "-moz-gtk-csd-hide-titlebar-by-default"),
Atom("_moz_gtk_csd_titlebar_radius", "-moz-gtk-csd-titlebar-radius"),
Atom("_moz_gtk_csd_minimize_button", "-moz-gtk-csd-minimize-button"),
Atom("_moz_gtk_csd_maximize_button", "-moz-gtk-csd-maximize-button"),

3
xpcom/system/nsIXULRuntime.idl
View File

@@ -319,6 +319,9 @@ interface nsIXULRuntime : nsISupports
/** Whether the chrome color-scheme is dark */
readonly attribute boolean chromeColorSchemeIsDark;
/** Whether we should draw over the titlebar */
readonly attribute boolean drawInTitlebar;
/**
* The path of the shortcut used to start the current process, or "" if none.
*