diff -up firefox-52.0/modules/libpref/init/all.js.1158076 firefox-52.0/modules/libpref/init/all.js
--- firefox-52.0/modules/libpref/init/all.js.1158076 2017-03-22 10:05:22.318067553 +0100
+++ firefox-52.0/modules/libpref/init/all.js 2017-03-22 10:07:15.360555913 +0100
@@ -4646,6 +4646,7 @@ pref("gfx.apitrace.enabled",false);
pref("gfx.content.use-native-pushlayer", true);
#ifdef MOZ_WIDGET_GTK
pref("gfx.xrender.enabled",false);
+pref("widget.allow-gtk-dark-theme", false);
#endif
#endif
diff -up firefox-52.0/widget/gtk/mozgtk/mozgtk.c.1158076 firefox-52.0/widget/gtk/mozgtk/mozgtk.c
--- firefox-52.0/widget/gtk/mozgtk/mozgtk.c.1158076 2017-03-22 10:05:22.313067576 +0100
+++ firefox-52.0/widget/gtk/mozgtk/mozgtk.c 2017-03-22 10:08:34.122199432 +0100
@@ -522,6 +522,7 @@ STUB(gdk_x11_display_get_type)
STUB(gtk_box_new)
STUB(gtk_cairo_should_draw_window)
STUB(gtk_cairo_transform_to_window)
+STUB(gtk_css_provider_get_named)
STUB(gtk_combo_box_text_append)
STUB(gtk_drag_set_icon_surface)
STUB(gtk_get_major_version)
@@ -548,6 +549,7 @@ STUB(gtk_scale_new)
STUB(gtk_scrollbar_new)
STUB(gtk_style_context_add_class)
STUB(gtk_style_context_add_region)
+STUB(gtk_style_context_add_provider_for_screen)
STUB(gtk_style_context_get)
STUB(gtk_style_context_get_background_color)
STUB(gtk_style_context_get_border)
@@ -573,6 +575,7 @@ STUB(gtk_style_context_set_path)
STUB(gtk_style_context_set_parent)
STUB(gtk_style_context_set_state)
STUB(gtk_style_properties_lookup_property)
+STUB(gtk_style_provider_get_type)
STUB(gtk_tree_view_column_get_button)
STUB(gtk_widget_get_preferred_size)
STUB(gtk_widget_get_state_flags)
diff -up firefox-52.0/widget/gtk/nsLookAndFeel.cpp.1158076 firefox-52.0/widget/gtk/nsLookAndFeel.cpp
--- firefox-52.0/widget/gtk/nsLookAndFeel.cpp.1158076 2017-03-22 10:05:22.314067571 +0100
+++ firefox-52.0/widget/gtk/nsLookAndFeel.cpp 2017-03-22 10:07:56.914367838 +0100
@@ -50,9 +50,9 @@ nsLookAndFeel::nsLookAndFeel()
mStyle(nullptr),
#endif
mDefaultFontCached(false), mButtonFontCached(false),
- mFieldFontCached(false), mMenuFontCached(false)
+ mFieldFontCached(false), mMenuFontCached(false),
+ mInitialized(false)
{
- Init();
}
nsLookAndFeel::~nsLookAndFeel()
@@ -224,6 +224,8 @@ GetBorderColors(GtkStyleContext* aContex
nsresult
nsLookAndFeel::NativeGetColor(ColorID aID, nscolor& aColor)
{
+ EnsureInit();
+
#if (MOZ_WIDGET_GTK == 3)
GdkRGBA gdk_color;
#endif
@@ -675,6 +677,8 @@ nsLookAndFeel::GetIntImpl(IntID aID, int
return res;
res = NS_OK;
+ // We use delayed initialization by EnsureInit() here
+ // to ensure mozilla::Preferences is available (see Bug 1158076).
switch (aID) {
case eIntID_CaretBlinkTime:
{
@@ -837,6 +841,7 @@ nsLookAndFeel::GetIntImpl(IntID aID, int
aResult = NS_STYLE_TEXT_DECORATION_STYLE_WAVY;
break;
case eIntID_MenuBarDrag:
+ EnsureInit();
aResult = sMenuSupportsDrag;
break;
case eIntID_ScrollbarButtonAutoRepeatBehavior:
@@ -877,6 +882,7 @@ nsLookAndFeel::GetFloatImpl(FloatID aID,
aResult = 1.0f;
break;
case eFloatID_CaretAspectRatio:
+ EnsureInit();
aResult = sCaretRatio;
break;
default:
@@ -1057,11 +1063,15 @@ nsLookAndFeel::GetFontImpl(FontID aID, n
}
void
-nsLookAndFeel::Init()
+nsLookAndFeel::EnsureInit()
{
GdkColor colorValue;
GdkColor *colorValuePtr;
+ if (mInitialized)
+ return;
+ mInitialized = true;
+
#if (MOZ_WIDGET_GTK == 2)
NS_ASSERTION(!mStyle, "already initialized");
// GtkInvisibles come with a refcount that is not floating
@@ -1133,17 +1143,40 @@ nsLookAndFeel::Init()
// ask Gtk to create it explicitly. Otherwise we may end up
// with wrong color theme, see Bug 972382
GtkSettings *settings = gtk_settings_get_for_screen(gdk_screen_get_default());
+ bool e10sActive = mozilla::BrowserTabsRemoteAutostart();
+
+ if (!e10sActive || XRE_IsContentProcess()) {
+ // Disable dark theme in processes with web content because it
+ // interacts poorly with widget styling (see bug 1216658).
+ // To avoid triggering reload of theme settings unnecessarily, only set the
+ // setting when necessary.
+ const gchar* dark_setting = "gtk-application-prefer-dark-theme";
+ gboolean dark;
+ g_object_get(settings, dark_setting, &dark, nullptr);
+
+ bool allowDarkEnv = PR_GetEnv("MOZ_ALLOW_GTK_DARK_THEME") != nullptr;
+ bool allowDarkPref =
+ mozilla::Preferences::GetBool("widget.allow-gtk-dark-theme", false);
- // Disable dark theme because it interacts poorly with widget styling in
- // web content (see bug 1216658).
- // To avoid triggering reload of theme settings unnecessarily, only set the
- // setting when necessary.
- const gchar* dark_setting = "gtk-application-prefer-dark-theme";
- gboolean dark;
- g_object_get(settings, dark_setting, &dark, nullptr);
+ if (dark && !allowDarkEnv && !allowDarkPref) {
+ g_object_set(settings, dark_setting, FALSE, nullptr);
+ }
- if (dark && !PR_GetEnv("MOZ_ALLOW_GTK_DARK_THEME")) {
- g_object_set(settings, dark_setting, FALSE, nullptr);
+ // Allow Gtk+ theme override for web content only.
+ if (e10sActive) {
+ auto contentThemeName =
+ mozilla::Preferences::GetCString("widget.content-gtk-theme");
+ if (!contentThemeName.IsEmpty()) {
+ // TODO: It should be enough to change theme by "gtk-theme-name"
+ // settings but that does not have any effect here. Maybe we
+ // call it too late?
+ GtkCssProvider *styleProvider =
+ gtk_css_provider_get_named(contentThemeName, NULL);
+ gtk_style_context_add_provider_for_screen(gdk_screen_get_default(),
+ GTK_STYLE_PROVIDER(styleProvider),
+ GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+ }
+ }
}
// Scrollbar colors
@@ -1439,6 +1472,7 @@ nsLookAndFeel::Init()
char16_t
nsLookAndFeel::GetPasswordCharacterImpl()
{
+ EnsureInit();
return sInvisibleCharacter;
}
@@ -1457,7 +1491,7 @@ nsLookAndFeel::RefreshImpl()
mStyle = nullptr;
#endif
- Init();
+ mInitialized = false;
}
bool
diff -up firefox-52.0/widget/gtk/nsLookAndFeel.h.1158076 firefox-52.0/widget/gtk/nsLookAndFeel.h
--- firefox-52.0/widget/gtk/nsLookAndFeel.h.1158076 2016-05-12 19:13:34.000000000 +0200
+++ firefox-52.0/widget/gtk/nsLookAndFeel.h 2017-03-22 10:06:36.461731972 +0100
@@ -84,8 +84,9 @@ protected:
char16_t sInvisibleCharacter;
float sCaretRatio;
bool sMenuSupportsDrag;
+ bool mInitialized;
- void Init();
+ void EnsureInit();
};
#endif