diff -r 0e45f8ad501c -r b0c883afdffa mozilla-bmo1399611-csd.patch --- a/mozilla-bmo1399611-csd.patch Wed Jan 10 22:27:13 2018 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1744 +0,0 @@ -diff -up firefox-57.0b8/browser/app/profile/firefox.js.1399611 firefox-57.0b8/browser/app/profile/firefox.js ---- firefox-57.0b8/browser/app/profile/firefox.js.1399611 2017-10-16 12:11:45.364240654 +0200 -+++ firefox-57.0b8/browser/app/profile/firefox.js 2017-10-16 12:28:03.860720910 +0200 -@@ -457,11 +457,7 @@ pref("browser.tabs.loadBookmarksInBackgr - pref("browser.tabs.loadBookmarksInTabs", false); - pref("browser.tabs.tabClipWidth", 140); - pref("browser.tabs.tabMinWidth", 76); --#ifdef UNIX_BUT_NOT_MAC --pref("browser.tabs.drawInTitlebar", false); --#else - pref("browser.tabs.drawInTitlebar", true); --#endif - - // Offer additional drag space to the user. The drag space - // will only be shown if browser.tabs.drawInTitlebar is true. -diff -up firefox-57.0b8/browser/base/content/browser-tabsintitlebar.js.1399611 firefox-57.0b8/browser/base/content/browser-tabsintitlebar.js ---- firefox-57.0b8/browser/base/content/browser-tabsintitlebar.js.1399611 2017-10-09 22:17:13.000000000 +0200 -+++ firefox-57.0b8/browser/base/content/browser-tabsintitlebar.js 2017-10-16 12:11:45.364240654 +0200 -@@ -14,6 +14,11 @@ var TabsInTitlebar = { - this._readPref(); - Services.prefs.addObserver(this._prefName, this); - -+ // Always disable on unsupported GTK versions. -+ if (AppConstants.MOZ_WIDGET_TOOLKIT == "gtk3") { -+ this.allowedBy("gtk", window.matchMedia("(-moz-gtk-csd-available)")); -+ } -+ - // We need to update the appearance of the titlebar when the menu changes - // from the active to the inactive state. We can't, however, rely on - // DOMMenuBarInactive, because the menu fires this event and then removes -diff -up firefox-57.0b8/browser/base/moz.build.1399611 firefox-57.0b8/browser/base/moz.build ---- firefox-57.0b8/browser/base/moz.build.1399611 2017-09-29 18:16:45.000000000 +0200 -+++ firefox-57.0b8/browser/base/moz.build 2017-10-16 12:11:45.364240654 +0200 -@@ -57,7 +57,7 @@ DEFINES['APP_LICENSE_BLOCK'] = '%s/conte - if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'gtk2', 'gtk3', 'cocoa'): - DEFINES['CONTEXT_COPY_IMAGE_CONTENTS'] = 1 - --if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'cocoa'): -+if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'cocoa', 'gtk3'): - DEFINES['CAN_DRAW_IN_TITLEBAR'] = 1 - - if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'gtk2', 'gtk3'): -diff -up firefox-57.0b8/browser/themes/linux/browser.css.1399611 firefox-57.0b8/browser/themes/linux/browser.css ---- firefox-57.0b8/browser/themes/linux/browser.css.1399611 2017-10-05 06:17:37.000000000 +0200 -+++ firefox-57.0b8/browser/themes/linux/browser.css 2017-10-16 12:11:45.365240651 +0200 -@@ -556,7 +556,9 @@ html|span.ac-emphasize-text-url { - - #nav-bar, - #toolbar-menubar:not([autohide="true"]):not(:-moz-lwtheme):-moz-system-metric(menubar-drag), --#TabsToolbar:not(:-moz-lwtheme):-moz-system-metric(menubar-drag) { -+#TabsToolbar:not(:-moz-lwtheme):-moz-system-metric(menubar-drag), -+#main-window[tabsintitlebar] #toolbar-menubar:not([autohide="true"]), -+#main-window[tabsintitlebar] #TabsToolbar { - -moz-binding: url("chrome://browser/content/customizableui/toolbar.xml#toolbar-drag"); - } - -@@ -713,3 +715,85 @@ html|span.ac-emphasize-text-url { - .restore-tabs-button:hover:active:not([disabled="true"]) { - padding: 3px; - } -+ -+@media not all and (-moz-gtk-csd-available) { -+ #main-window > #titlebar { -+ /* We need to hide the titlebar explicitly on versions of GTK without CSD. */ -+ display: none; -+ } -+} -+ -+/* Titlebar/CSD */ -+@media (-moz-gtk-csd-available) { -+ #main-window[tabsintitlebar][sizemode="normal"] > #titlebar { -+ min-height: calc(var(--tab-min-height) + 12px); -+ } -+ -+ #main-window[tabsintitlebar] #titlebar:-moz-lwtheme { -+ visibility: hidden; -+ } -+ #main-window[tabsintitlebar] #titlebar-content:-moz-lwtheme { -+ visibility: visible; -+ } -+ -+ #main-window[tabsintitlebar][sizemode="normal"] > #titlebar { -+ -moz-appearance: -moz-window-titlebar; -+ } -+ #main-window[tabsintitlebar][sizemode="maximized"] > #titlebar { -+ -moz-appearance: -moz-window-titlebar-maximized; -+ } -+ -+ /* The button box must appear on top of the navigator-toolbox in order for -+ * click and hover mouse events to work properly for the button in the restored -+ * window state. Otherwise, elements in the navigator-toolbox, like the menubar, -+ * can swallow those events. -+ */ -+ #titlebar-buttonbox { -+ z-index: 1; -+ } -+ -+ /* titlebar command buttons */ -+ /* Use full scale icons here as the Gtk+ does. */ -+ @media (-moz-gtk-csd-minimize-button) { -+ #titlebar-min { -+ list-style-image: url("moz-icon://stock/window-minimize-symbolic"); -+ -moz-appearance: -moz-window-button-minimize; -+ } -+ } -+ @media not all and (-moz-gtk-csd-minimize-button) { -+ #titlebar-min { -+ display: none; -+ } -+ } -+ -+ @media (-moz-gtk-csd-maximize-button) { -+ #titlebar-max { -+ list-style-image: url("moz-icon://stock/window-maximize-symbolic"); -+ -moz-appearance: -moz-window-button-maximize; -+ } -+ #main-window[sizemode="maximized"] #titlebar-max { -+ list-style-image: url("moz-icon://stock/window-restore-symbolic"); -+ -moz-appearance: -moz-window-button-restore; -+ } -+ } -+ @media not all and (-moz-gtk-csd-maximize-button) { -+ #titlebar-max { -+ display: none; -+ } -+ #main-window[sizemode="maximized"] #titlebar-max { -+ display: none; -+ } -+ } -+ -+ @media (-moz-gtk-csd-close-button) { -+ #titlebar-close { -+ list-style-image: url("moz-icon://stock/window-close-symbolic"); -+ -moz-appearance: -moz-window-button-close; -+ } -+ } -+ @media not all and (-moz-gtk-csd-close-button) { -+ #titlebar-close { -+ display: none; -+ } -+ } -+} -diff -up firefox-57.0b8/dom/base/nsGkAtomList.h.1399611 firefox-57.0b8/dom/base/nsGkAtomList.h ---- firefox-57.0b8/dom/base/nsGkAtomList.h.1399611 2017-09-15 06:15:41.000000000 +0200 -+++ firefox-57.0b8/dom/base/nsGkAtomList.h 2017-10-16 12:11:45.365240651 +0200 -@@ -2270,6 +2270,10 @@ GK_ATOM(touch_enabled, "touch-enabled") - GK_ATOM(menubar_drag, "menubar-drag") - GK_ATOM(swipe_animation_enabled, "swipe-animation-enabled") - GK_ATOM(physical_home_button, "physical-home-button") -+GK_ATOM(gtk_csd_available, "gtk-csd-available") -+GK_ATOM(gtk_csd_minimize_button, "gtk-csd-minimize-button") -+GK_ATOM(gtk_csd_maximize_button, "gtk-csd-maximize-button") -+GK_ATOM(gtk_csd_close_button, "gtk-csd-close-button") - - // windows theme selector metrics - GK_ATOM(windows_classic, "windows-classic") -@@ -2306,6 +2310,10 @@ GK_ATOM(_moz_device_orientation, "-moz-d - GK_ATOM(_moz_is_resource_document, "-moz-is-resource-document") - GK_ATOM(_moz_swipe_animation_enabled, "-moz-swipe-animation-enabled") - GK_ATOM(_moz_physical_home_button, "-moz-physical-home-button") -+GK_ATOM(_moz_gtk_csd_available, "-moz-gtk-csd-available") -+GK_ATOM(_moz_gtk_csd_minimize_button, "-moz-gtk-csd-minimize-button") -+GK_ATOM(_moz_gtk_csd_maximize_button, "-moz-gtk-csd-maximize-button") -+GK_ATOM(_moz_gtk_csd_close_button, "-moz-gtk-csd-close-button") - - // application commands - GK_ATOM(Back, "Back") -diff -up firefox-57.0b8/gfx/src/nsThemeConstants.h.1399611 firefox-57.0b8/gfx/src/nsThemeConstants.h ---- firefox-57.0b8/gfx/src/nsThemeConstants.h.1399611 2017-06-12 18:37:10.000000000 +0200 -+++ firefox-57.0b8/gfx/src/nsThemeConstants.h 2017-10-16 12:11:45.365240651 +0200 -@@ -299,6 +299,7 @@ enum ThemeWidgetType : uint8_t { - NS_THEME_MAC_SOURCE_LIST, - NS_THEME_MAC_SOURCE_LIST_SELECTION, - NS_THEME_MAC_ACTIVE_SOURCE_LIST_SELECTION, -+ NS_THEME_GTK_WINDOW_DECORATION, - - ThemeWidgetType_COUNT - }; -diff -up firefox-57.0b8/layout/style/nsCSSRuleProcessor.cpp.1399611 firefox-57.0b8/layout/style/nsCSSRuleProcessor.cpp ---- firefox-57.0b8/layout/style/nsCSSRuleProcessor.cpp.1399611 2017-08-02 14:27:54.000000000 +0200 -+++ firefox-57.0b8/layout/style/nsCSSRuleProcessor.cpp 2017-10-16 12:11:45.365240651 +0200 -@@ -1180,6 +1180,30 @@ nsCSSRuleProcessor::InitSystemMetrics() - sSystemMetrics->AppendElement(nsGkAtoms::physical_home_button); - } - -+ rv = LookAndFeel::GetInt(LookAndFeel::eIntID_GTKCSDAvailable, -+ &metricResult); -+ if (NS_SUCCEEDED(rv) && metricResult) { -+ sSystemMetrics->AppendElement(nsGkAtoms::gtk_csd_available); -+ } -+ -+ rv = LookAndFeel::GetInt(LookAndFeel::eIntID_GTKCSDMinimizeButton, -+ &metricResult); -+ if (NS_SUCCEEDED(rv) && metricResult) { -+ sSystemMetrics->AppendElement(nsGkAtoms::gtk_csd_minimize_button); -+ } -+ -+ rv = LookAndFeel::GetInt(LookAndFeel::eIntID_GTKCSDMaximizeButton, -+ &metricResult); -+ if (NS_SUCCEEDED(rv) && metricResult) { -+ sSystemMetrics->AppendElement(nsGkAtoms::gtk_csd_maximize_button); -+ } -+ -+ rv = LookAndFeel::GetInt(LookAndFeel::eIntID_GTKCSDCloseButton, -+ &metricResult); -+ if (NS_SUCCEEDED(rv) && metricResult) { -+ sSystemMetrics->AppendElement(nsGkAtoms::gtk_csd_close_button); -+ } -+ - #ifdef XP_WIN - if (NS_SUCCEEDED( - LookAndFeel::GetInt(LookAndFeel::eIntID_WindowsThemeIdentifier, -diff -up firefox-57.0b8/layout/style/nsMediaFeatures.cpp.1399611 firefox-57.0b8/layout/style/nsMediaFeatures.cpp ---- firefox-57.0b8/layout/style/nsMediaFeatures.cpp.1399611 2017-09-15 06:15:42.000000000 +0200 -+++ firefox-57.0b8/layout/style/nsMediaFeatures.cpp 2017-10-16 12:11:45.366240647 +0200 -@@ -788,6 +788,42 @@ nsMediaFeatures::features[] = { - GetSystemMetric - }, - -+ { -+ &nsGkAtoms::_moz_gtk_csd_available, -+ nsMediaFeature::eMinMaxNotAllowed, -+ nsMediaFeature::eBoolInteger, -+ nsMediaFeature::eNoRequirements, -+ { &nsGkAtoms::gtk_csd_available }, -+ GetSystemMetric -+ }, -+ -+ { -+ &nsGkAtoms::_moz_gtk_csd_minimize_button, -+ nsMediaFeature::eMinMaxNotAllowed, -+ nsMediaFeature::eBoolInteger, -+ nsMediaFeature::eNoRequirements, -+ { &nsGkAtoms::gtk_csd_minimize_button }, -+ GetSystemMetric -+ }, -+ -+ { -+ &nsGkAtoms::_moz_gtk_csd_maximize_button, -+ nsMediaFeature::eMinMaxNotAllowed, -+ nsMediaFeature::eBoolInteger, -+ nsMediaFeature::eNoRequirements, -+ { &nsGkAtoms::gtk_csd_maximize_button }, -+ GetSystemMetric -+ }, -+ -+ { -+ &nsGkAtoms::_moz_gtk_csd_close_button, -+ nsMediaFeature::eMinMaxNotAllowed, -+ nsMediaFeature::eBoolInteger, -+ nsMediaFeature::eNoRequirements, -+ { &nsGkAtoms::gtk_csd_close_button }, -+ GetSystemMetric -+ }, -+ - // Internal -moz-is-glyph media feature: applies only inside SVG glyphs. - // Internal because it is really only useful in the user agent anyway - // and therefore not worth standardizing. -diff -up firefox-57.0b8/modules/libpref/init/all.js.1399611 firefox-57.0b8/modules/libpref/init/all.js ---- firefox-57.0b8/modules/libpref/init/all.js.1399611 2017-10-12 18:12:09.000000000 +0200 -+++ firefox-57.0b8/modules/libpref/init/all.js 2017-10-16 12:11:45.366240647 +0200 -@@ -4911,6 +4911,7 @@ pref("gfx.apitrace.enabled",false); - pref("gfx.xrender.enabled",false); - pref("widget.chrome.allow-gtk-dark-theme", false); - pref("widget.content.allow-gtk-dark-theme", false); -+pref("widget.allow-client-side-decoration", false); - #endif - #endif - -diff -up firefox-57.0b8/toolkit/modules/moz.build.1399611 firefox-57.0b8/toolkit/modules/moz.build ---- firefox-57.0b8/toolkit/modules/moz.build.1399611 2017-09-15 06:15:40.000000000 +0200 -+++ firefox-57.0b8/toolkit/modules/moz.build 2017-10-16 12:11:45.366240647 +0200 -@@ -259,7 +259,7 @@ EXTRA_JS_MODULES.sessionstore += [ - ] - - DEFINES['INSTALL_COMPACT_THEMES'] = 1 --if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'cocoa'): -+if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'cocoa', 'gtk3'): - DEFINES['CAN_DRAW_IN_TITLEBAR'] = 1 - - if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('windows', 'gtk2', 'gtk3'): -diff -up firefox-57.0b8/widget/gtk/gtk3drawing.cpp.1399611 firefox-57.0b8/widget/gtk/gtk3drawing.cpp ---- firefox-57.0b8/widget/gtk/gtk3drawing.cpp.1399611 2017-09-15 06:15:40.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/gtk3drawing.cpp 2017-10-16 12:11:45.367240644 +0200 -@@ -17,6 +17,7 @@ - #include "WidgetStyleCache.h" - - #include -+#include - - static gboolean checkbox_check_state; - static gboolean notebook_has_tab_gap; -@@ -39,9 +40,25 @@ static gint - moz_gtk_menu_item_paint(WidgetNodeType widget, cairo_t *cr, GdkRectangle* rect, - GtkWidgetState* state, GtkTextDirection direction); - -+static void -+moz_gtk_add_style_margin(GtkStyleContext* style, -+ gint* left, gint* top, gint* right, gint* bottom); -+static void -+moz_gtk_add_style_border(GtkStyleContext* style, -+ gint* left, gint* top, gint* right, gint* bottom); -+static void -+moz_gtk_add_style_padding(GtkStyleContext* style, -+ gint* left, gint* top, gint* right, gint* bottom); -+static void moz_gtk_add_margin_border_padding(GtkStyleContext *style, -+ gint* left, gint* top, -+ gint* right, gint* bottom); -+static void moz_gtk_add_border_padding(GtkStyleContext *style, -+ gint* left, gint* top, -+ gint* right, gint* bottom); - static GtkBorder - GetMarginBorderPadding(GtkStyleContext* aStyle); - -+ - // GetStateFlagsFromGtkWidgetState() can be safely used for the specific - // GtkWidgets that set both prelight and active flags. For other widgets, - // either the GtkStateFlags or Gecko's GtkWidgetState need to be carefully -@@ -233,6 +250,43 @@ moz_gtk_splitter_get_metrics(gint orient - return MOZ_GTK_SUCCESS; - } - -+void -+moz_gtk_get_window_border(gint* top, gint* right, gint* bottom, gint* left) -+{ -+ MOZ_ASSERT(gtk_check_version(3, 20, 0) == nullptr, -+ "Window decorations are only supported on GTK 3.20+."); -+ -+ GtkStyleContext* style = GetStyleContext(MOZ_GTK_WINDOW); -+ -+ *top = *right = *bottom = *left = 0; -+ moz_gtk_add_border_padding(style, left, top, right, bottom); -+ GtkBorder windowMargin; -+ gtk_style_context_get_margin(style, GTK_STATE_FLAG_NORMAL, &windowMargin); -+ -+ style = GetStyleContext(MOZ_GTK_WINDOW_DECORATION); -+ -+ // Available on GTK 3.20+. -+ static auto sGtkRenderBackgroundGetClip = -+ (void (*)(GtkStyleContext*, gdouble, gdouble, gdouble, gdouble, GdkRectangle*)) -+ dlsym(RTLD_DEFAULT, "gtk_render_background_get_clip"); -+ -+ GdkRectangle shadowClip; -+ sGtkRenderBackgroundGetClip(style, 0, 0, 0, 0, &shadowClip); -+ -+ // Transfer returned inset rectangle to GtkBorder -+ GtkBorder shadowBorder = { -+ static_cast(-shadowClip.x), // left -+ static_cast(shadowClip.width + shadowClip.x), // right -+ static_cast(-shadowClip.y), // top -+ static_cast(shadowClip.height + shadowClip.y), // bottom -+ }; -+ -+ *left += MAX(windowMargin.left, shadowBorder.left); -+ *right += MAX(windowMargin.right, shadowBorder.right); -+ *top += MAX(windowMargin.top, shadowBorder.top); -+ *bottom += MAX(windowMargin.bottom, shadowBorder.bottom); -+} -+ - static gint - moz_gtk_window_paint(cairo_t *cr, GdkRectangle* rect, - GtkTextDirection direction) -@@ -302,6 +356,24 @@ moz_gtk_button_paint(cairo_t *cr, GdkRec - } - - static gint -+moz_gtk_header_bar_button_paint(cairo_t *cr, GdkRectangle* rect, -+ GtkWidgetState* state, -+ GtkReliefStyle relief, GtkWidget* widget, -+ GtkTextDirection direction) -+{ -+ GtkBorder margin; -+ GtkStyleContext* style = gtk_widget_get_style_context(widget); -+ gtk_style_context_get_margin(style, GTK_STATE_FLAG_NORMAL, &margin); -+ -+ rect->x += margin.left; -+ rect->y += margin.top; -+ rect->width -= margin.left + margin.right; -+ rect->height -= margin.top + margin.bottom; -+ -+ return moz_gtk_button_paint(cr, rect, state, relief, widget, direction); -+} -+ -+static gint - moz_gtk_toggle_paint(cairo_t *cr, GdkRectangle* rect, - GtkWidgetState* state, - gboolean selected, gboolean inconsistent, -@@ -1948,6 +2020,38 @@ moz_gtk_info_bar_paint(cairo_t *cr, GdkR - return MOZ_GTK_SUCCESS; - } - -+static gint -+moz_gtk_header_bar_paint(WidgetNodeType widgetType, -+ cairo_t *cr, GdkRectangle* rect, GtkWidgetState* state) -+{ -+ GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); -+ GtkStyleContext *style; -+ -+ style = GetStyleContext(widgetType, GTK_TEXT_DIR_LTR, -+ state_flags); -+ InsetByMargin(rect, style); -+ gtk_render_background(style, cr, rect->x, rect->y, rect->width, -+ rect->height); -+ gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); -+ -+ return MOZ_GTK_SUCCESS; -+} -+ -+void -+moz_gtk_header_bar_paint(cairo_t *cr, GdkRectangle* rect) -+{ -+ static GtkWidgetState state; -+ moz_gtk_header_bar_paint(MOZ_GTK_HEADER_BAR, cr, rect, &state); -+} -+ -+void -+moz_gtk_get_header_bar_border(gint* top, gint* right, gint* bottom, gint* left) -+{ -+ *left = *top = *right = *bottom = 0; -+ moz_gtk_add_border_padding(GetStyleContext(MOZ_GTK_HEADER_BAR), -+ left, top, right, bottom); -+} -+ - static void - moz_gtk_add_style_margin(GtkStyleContext* style, - gint* left, gint* top, gint* right, gint* bottom) -@@ -1999,6 +2103,14 @@ static void moz_gtk_add_margin_border_pa - moz_gtk_add_style_padding(style, left, top, right, bottom); - } - -+static void moz_gtk_add_border_padding(GtkStyleContext *style, -+ gint* left, gint* top, -+ gint* right, gint* bottom) -+{ -+ moz_gtk_add_style_border(style, left, top, right, bottom); -+ moz_gtk_add_style_padding(style, left, top, right, bottom); -+} -+ - static GtkBorder - GetMarginBorderPadding(GtkStyleContext* aStyle) - { -@@ -2054,8 +2166,7 @@ moz_gtk_get_widget_border(WidgetNodeType - // XXX: Subtract 1 pixel from the padding to account for the default - // padding in forms.css. See bug 1187385. - *left = *top = *right = *bottom = -1; -- moz_gtk_add_style_padding(style, left, top, right, bottom); -- moz_gtk_add_style_border(style, left, top, right, bottom); -+ moz_gtk_add_border_padding(style, left, top, right, bottom); - - return MOZ_GTK_SUCCESS; - } -@@ -2076,10 +2187,8 @@ moz_gtk_get_widget_border(WidgetNodeType - *left = *top = *right = *bottom = - gtk_container_get_border_width(GTK_CONTAINER( - GetWidget(MOZ_GTK_TREE_HEADER_CELL))); -- - style = GetStyleContext(MOZ_GTK_TREE_HEADER_CELL); -- moz_gtk_add_style_border(style, left, top, right, bottom); -- moz_gtk_add_style_padding(style, left, top, right, bottom); -+ moz_gtk_add_border_padding(style, left, top, right, bottom); - return MOZ_GTK_SUCCESS; - } - case MOZ_GTK_TREE_HEADER_SORTARROW: -@@ -2105,8 +2214,7 @@ moz_gtk_get_widget_border(WidgetNodeType - gtk_container_get_border_width(GTK_CONTAINER( - GetWidget(MOZ_GTK_COMBOBOX_BUTTON))); - style = GetStyleContext(MOZ_GTK_COMBOBOX_BUTTON); -- moz_gtk_add_style_padding(style, left, top, right, bottom); -- moz_gtk_add_style_border(style, left, top, right, bottom); -+ moz_gtk_add_border_padding(style, left, top, right, bottom); - - /* If there is no separator, don't try to count its width. */ - separator_width = 0; -@@ -2160,10 +2268,8 @@ moz_gtk_get_widget_border(WidgetNodeType - style = gtk_widget_get_style_context(w); - - *left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(w)); -- moz_gtk_add_style_border(style, -- left, top, right, bottom); -- moz_gtk_add_style_padding(style, -- left, top, right, bottom); -+ moz_gtk_add_border_padding(style, -+ left, top, right, bottom); - return MOZ_GTK_SUCCESS; - } - case MOZ_GTK_MENUPOPUP: -@@ -2210,6 +2316,21 @@ moz_gtk_get_widget_border(WidgetNodeType - - return MOZ_GTK_SUCCESS; - } -+ case MOZ_GTK_HEADER_BAR: -+ case MOZ_GTK_HEADER_BAR_MAXIMIZED: -+ { -+ style = GetStyleContext(widget); -+ moz_gtk_add_border_padding(style, left, top, right, bottom); -+ return MOZ_GTK_SUCCESS; -+ } -+ case MOZ_GTK_HEADER_BAR_BUTTON_CLOSE: -+ case MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE: -+ case MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE: -+ { -+ style = GetStyleContext(widget); -+ moz_gtk_add_margin_border_padding(style, left, top, right, bottom); -+ return MOZ_GTK_SUCCESS; -+ } - - /* These widgets have no borders, since they are not containers. */ - case MOZ_GTK_CHECKBUTTON_LABEL: -@@ -2646,6 +2767,36 @@ GetScrollbarMetrics(GtkOrientation aOrie - return metrics; - } - -+void -+moz_gtk_window_decoration_paint(cairo_t *cr, GdkRectangle* rect) -+{ -+ gint top, right, bottom, left; -+ moz_gtk_get_window_border(&top, &right, &bottom, &left); -+ -+ cairo_save(cr); -+ cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR); -+ cairo_rectangle(cr, rect->x, rect->y, left, rect->height); -+ cairo_fill(cr); -+ cairo_rectangle(cr, rect->x+rect->width-right, rect->y, right, rect->height); -+ cairo_fill(cr); -+ cairo_rectangle(cr, rect->x, rect->y, rect->width, top); -+ cairo_fill(cr); -+ cairo_rectangle(cr, rect->x, rect->height-bottom, rect->width, bottom); -+ cairo_fill(cr); -+ cairo_restore(cr); -+ -+ GtkStyleContext* style = GetStyleContext(MOZ_GTK_WINDOW_DECORATION, -+ GTK_TEXT_DIR_NONE); -+ rect->x += left; -+ rect->y += top; -+ rect->width -= left + right; -+ rect->height -= top + bottom; -+ -+ gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); -+ gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); -+} -+ -+ - /* cairo_t *cr argument has to be a system-cairo. */ - gint - moz_gtk_widget_paint(WidgetNodeType widget, cairo_t *cr, -@@ -2671,6 +2822,14 @@ moz_gtk_widget_paint(WidgetNodeType widg - GetWidget(MOZ_GTK_BUTTON), - direction); - break; -+ case MOZ_GTK_HEADER_BAR_BUTTON_CLOSE: -+ case MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE: -+ case MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE: -+ return moz_gtk_header_bar_button_paint(cr, rect, state, -+ (GtkReliefStyle) flags, -+ GetWidget(widget), -+ direction); -+ break; - case MOZ_GTK_CHECKBUTTON: - case MOZ_GTK_RADIOBUTTON: - return moz_gtk_toggle_paint(cr, rect, state, -@@ -2877,6 +3036,10 @@ moz_gtk_widget_paint(WidgetNodeType widg - case MOZ_GTK_INFO_BAR: - return moz_gtk_info_bar_paint(cr, rect, state); - break; -+ case MOZ_GTK_HEADER_BAR: -+ case MOZ_GTK_HEADER_BAR_MAXIMIZED: -+ return moz_gtk_header_bar_paint(widget, cr, rect, state); -+ break; - default: - g_warning("Unknown widget type: %d", widget); - } -diff -up firefox-57.0b8/widget/gtk/gtkdrawing.h.1399611 firefox-57.0b8/widget/gtk/gtkdrawing.h ---- firefox-57.0b8/widget/gtk/gtkdrawing.h.1399611 2017-06-12 18:37:20.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/gtkdrawing.h 2017-10-16 12:11:45.367240644 +0200 -@@ -268,8 +268,14 @@ typedef enum { - MOZ_GTK_SPLITTER_SEPARATOR_VERTICAL, - /* Paints the background of a window, dialog or page. */ - MOZ_GTK_WINDOW, -+ /* Used only as a container for MOZ_GTK_HEADER_BAR_MAXIMIZED. */ -+ MOZ_GTK_WINDOW_MAXIMIZED, - /* Window container for all widgets */ - MOZ_GTK_WINDOW_CONTAINER, -+ /* Window with the 'csd' style class. */ -+ MOZ_GTK_WINDOW_CSD, -+ /* Client-side window decoration node. Available on GTK 3.20+. */ -+ MOZ_GTK_WINDOW_DECORATION, - /* Paints a GtkInfoBar, for notifications. */ - MOZ_GTK_INFO_BAR, - /* Used for widget tree construction. */ -@@ -290,6 +296,14 @@ typedef enum { - MOZ_GTK_COMBOBOX_ENTRY_ARROW, - /* Used for scrolled window shell. */ - MOZ_GTK_SCROLLED_WINDOW, -+ /* Paints a GtkHeaderBar */ -+ MOZ_GTK_HEADER_BAR, -+ /* Paints a GtkHeaderBar in maximized state */ -+ MOZ_GTK_HEADER_BAR_MAXIMIZED, -+ /* Paints a GtkHeaderBar title buttons */ -+ MOZ_GTK_HEADER_BAR_BUTTON_CLOSE, -+ MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE, -+ MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE, - - MOZ_GTK_WIDGET_NODE_COUNT - } WidgetNodeType; -@@ -542,6 +556,32 @@ gint moz_gtk_get_menu_separator_height(g - */ - gint moz_gtk_splitter_get_metrics(gint orientation, gint* size); - -+#if (MOZ_WIDGET_GTK == 3) -+/** -+ * Gets the margins to be used for window decorations, typically the extra space -+ * required to draw a drop shadow (obtained from gtk_render_background_get_clip). -+ * Only available on GTK 3.20+. -+ */ -+void moz_gtk_get_window_border(gint* top, gint* right, gint* bottom, gint* left); -+ -+/** -+ * Draw window decorations, typically a shadow. -+ * Only available on GTK 3.20+. -+ */ -+void moz_gtk_window_decoration_paint(cairo_t *cr, GdkRectangle* rect); -+ -+/** -+ * Gets the border of window header bar, only available on GTK 3.20+. -+ */ -+void moz_gtk_get_header_bar_border(gint* top, gint* right, gint* bottom, gint* left); -+ -+/** -+ * Draw window header bar, only available on GTK 3.20+. -+ */ -+void moz_gtk_header_bar_paint(cairo_t *cr, GdkRectangle* rect); -+ -+#endif -+ - /** - * Get the YTHICKNESS of a tab (notebook extension). - */ -diff -up firefox-57.0b8/widget/gtk/mozgtk/mozgtk.c.1399611 firefox-57.0b8/widget/gtk/mozgtk/mozgtk.c ---- firefox-57.0b8/widget/gtk/mozgtk/mozgtk.c.1399611 2017-10-09 22:17:13.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/mozgtk/mozgtk.c 2017-10-16 12:11:45.367240644 +0200 -@@ -580,6 +580,8 @@ STUB(gtk_style_context_set_state) - STUB(gtk_style_properties_lookup_property) - STUB(gtk_tree_view_column_get_button) - STUB(gtk_widget_get_preferred_size) -+STUB(gtk_widget_get_preferred_width) -+STUB(gtk_widget_get_preferred_height) - STUB(gtk_widget_get_state_flags) - STUB(gtk_widget_get_style_context) - STUB(gtk_widget_path_append_type) -@@ -589,6 +591,10 @@ STUB(gtk_widget_path_iter_add_class) - STUB(gtk_widget_path_get_object_type) - STUB(gtk_widget_path_new) - STUB(gtk_widget_path_unref) -+STUB(gtk_widget_set_margin_left) -+STUB(gtk_widget_set_margin_right) -+STUB(gtk_widget_set_margin_top) -+STUB(gtk_widget_set_margin_bottom) - STUB(gtk_widget_set_visual) - STUB(gtk_app_chooser_dialog_new_for_content_type) - STUB(gtk_app_chooser_get_type) -@@ -601,6 +607,7 @@ STUB(gtk_color_chooser_get_type) - STUB(gtk_color_chooser_set_rgba) - STUB(gtk_color_chooser_get_rgba) - STUB(gtk_color_chooser_set_use_alpha) -+STUB(gtk_window_get_size) - #endif - - #ifdef GTK2_SYMBOLS -diff -up firefox-57.0b8/widget/gtk/nsLookAndFeel.cpp.1399611 firefox-57.0b8/widget/gtk/nsLookAndFeel.cpp ---- firefox-57.0b8/widget/gtk/nsLookAndFeel.cpp.1399611 2017-09-21 06:10:10.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/nsLookAndFeel.cpp 2017-10-16 12:11:45.367240644 +0200 -@@ -642,6 +642,22 @@ nsLookAndFeel::GetIntImpl(IntID aID, int - case eIntID_ContextMenuOffsetHorizontal: - aResult = 2; - break; -+ case eIntID_GTKCSDAvailable: -+ EnsureInit(); -+ aResult = sCSDAvailable; -+ break; -+ case eIntID_GTKCSDMaximizeButton: -+ EnsureInit(); -+ aResult = sCSDMaximizeButton; -+ break; -+ case eIntID_GTKCSDMinimizeButton: -+ EnsureInit(); -+ aResult = sCSDMinimizeButton; -+ break; -+ case eIntID_GTKCSDCloseButton: -+ EnsureInit(); -+ aResult = sCSDCloseButton; -+ break; - default: - aResult = 0; - res = NS_ERROR_FAILURE; -@@ -1048,6 +1064,40 @@ nsLookAndFeel::EnsureInit() - - gtk_widget_destroy(window); - g_object_unref(labelWidget); -+ -+ // Require GTK 3.20 for client-side decoration support. -+ // 3.20 exposes gtk_render_background_get_clip, which is required for -+ // calculating shadow metrics for decorated windows. -+ sCSDAvailable = gtk_check_version(3, 20, 0) == nullptr; -+ if (sCSDAvailable) { -+ sCSDAvailable = -+ mozilla::Preferences::GetBool("widget.allow-client-side-decoration", -+ false); -+ } -+ -+ const gchar* decorationLayout = nullptr; -+ if (gtk_check_version(3, 12, 0) == nullptr) { -+ static auto sGtkHeaderBarGetDecorationLayoutPtr = -+ (const gchar* (*)(GtkWidget*)) -+ dlsym(RTLD_DEFAULT, "gtk_header_bar_get_decoration_layout"); -+ -+ GtkWidget* headerBar = GetWidget(MOZ_GTK_HEADER_BAR); -+ decorationLayout = sGtkHeaderBarGetDecorationLayoutPtr(headerBar); -+ if (!decorationLayout) { -+ g_object_get(settings, "gtk-decoration-layout", &decorationLayout, -+ nullptr); -+ } -+ } -+ -+ if (decorationLayout) { -+ sCSDCloseButton = (strstr(decorationLayout, "close") != nullptr); -+ sCSDMaximizeButton = (strstr(decorationLayout, "maximize") != nullptr); -+ sCSDMinimizeButton = (strstr(decorationLayout, "minimize") != nullptr); -+ } else { -+ sCSDCloseButton = true; -+ sCSDMaximizeButton = true; -+ sCSDMinimizeButton = true; -+ } - } - - // virtual -diff -up firefox-57.0b8/widget/gtk/nsLookAndFeel.h.1399611 firefox-57.0b8/widget/gtk/nsLookAndFeel.h ---- firefox-57.0b8/widget/gtk/nsLookAndFeel.h.1399611 2017-09-21 06:10:10.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/nsLookAndFeel.h 2017-10-16 12:11:45.367240644 +0200 -@@ -32,6 +32,8 @@ public: - virtual char16_t GetPasswordCharacterImpl(); - virtual bool GetEchoPasswordImpl(); - -+ bool IsCSDAvailable() const { return sCSDAvailable; } -+ - protected: - - // Cached fonts -@@ -82,6 +84,10 @@ protected: - char16_t sInvisibleCharacter; - float sCaretRatio; - bool sMenuSupportsDrag; -+ bool sCSDAvailable; -+ bool sCSDMaximizeButton; -+ bool sCSDMinimizeButton; -+ bool sCSDCloseButton; - bool mInitialized; - - void EnsureInit(); -diff -up firefox-57.0b8/widget/gtk/nsNativeThemeGTK.cpp.1399611 firefox-57.0b8/widget/gtk/nsNativeThemeGTK.cpp ---- firefox-57.0b8/widget/gtk/nsNativeThemeGTK.cpp.1399611 2017-09-19 06:18:28.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/nsNativeThemeGTK.cpp 2017-10-16 12:11:45.368240640 +0200 -@@ -23,6 +23,7 @@ - #include "nsIDOMHTMLInputElement.h" - #include "nsGkAtoms.h" - #include "nsAttrValueInlines.h" -+#include "nsWindow.h" - - #include "mozilla/EventStates.h" - #include "mozilla/Services.h" -@@ -703,6 +704,24 @@ nsNativeThemeGTK::GetGtkWidgetAndState(u - case NS_THEME_GTK_INFO_BAR: - aGtkWidgetType = MOZ_GTK_INFO_BAR; - break; -+ case NS_THEME_WINDOW_TITLEBAR: -+ aGtkWidgetType = MOZ_GTK_HEADER_BAR; -+ break; -+ case NS_THEME_WINDOW_TITLEBAR_MAXIMIZED: -+ aGtkWidgetType = MOZ_GTK_HEADER_BAR_MAXIMIZED; -+ break; -+ case NS_THEME_WINDOW_BUTTON_CLOSE: -+ aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_CLOSE; -+ break; -+ case NS_THEME_WINDOW_BUTTON_MINIMIZE: -+ aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE; -+ break; -+ case NS_THEME_WINDOW_BUTTON_MAXIMIZE: -+ aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE; -+ break; -+ case NS_THEME_WINDOW_BUTTON_RESTORE: -+ aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE; -+ break; - default: - return false; - } -@@ -1627,6 +1646,10 @@ nsNativeThemeGTK::GetMinimumWidgetSize(n - case NS_THEME_MENULIST: - case NS_THEME_TOOLBARBUTTON: - case NS_THEME_TREEHEADERCELL: -+ case NS_THEME_WINDOW_BUTTON_CLOSE: -+ case NS_THEME_WINDOW_BUTTON_MINIMIZE: -+ case NS_THEME_WINDOW_BUTTON_MAXIMIZE: -+ case NS_THEME_WINDOW_BUTTON_RESTORE: - { - if (aWidgetType == NS_THEME_MENULIST) { - // Include the arrow size. -@@ -1892,9 +1915,21 @@ nsNativeThemeGTK::ThemeSupportsWidget(ns - case NS_THEME_DIALOG: - #if (MOZ_WIDGET_GTK == 3) - case NS_THEME_GTK_INFO_BAR: -+ case NS_THEME_GTK_WINDOW_DECORATION: - #endif - return !IsWidgetStyled(aPresContext, aFrame, aWidgetType); - -+ case NS_THEME_WINDOW_BUTTON_CLOSE: -+ case NS_THEME_WINDOW_BUTTON_MINIMIZE: -+ case NS_THEME_WINDOW_BUTTON_MAXIMIZE: -+ case NS_THEME_WINDOW_BUTTON_RESTORE: -+ case NS_THEME_WINDOW_TITLEBAR: -+ case NS_THEME_WINDOW_TITLEBAR_MAXIMIZED: -+ // GtkHeaderBar is available on GTK 3.10+, which is used for styling -+ // title bars and title buttons. -+ return gtk_check_version(3, 10, 0) == nullptr && -+ !IsWidgetStyled(aPresContext, aFrame, aWidgetType); -+ - case NS_THEME_MENULIST_BUTTON: - if (aFrame && aFrame->GetWritingMode().IsVertical()) { - return false; -@@ -1978,6 +2013,13 @@ nsNativeThemeGTK::GetWidgetTransparency( - #else - return eTransparent; - #endif -+ case NS_THEME_GTK_WINDOW_DECORATION: -+ { -+ nsWindow* window = static_cast(aFrame->GetNearestWidget()); -+ if (window) -+ return window->IsComposited() ? eTransparent : eOpaque; -+ return eOpaque; -+ } - } - - return eUnknownTransparency; -diff -up firefox-57.0b8/widget/gtk/nsWindow.cpp.1399611 firefox-57.0b8/widget/gtk/nsWindow.cpp ---- firefox-57.0b8/widget/gtk/nsWindow.cpp.1399611 2017-10-16 12:11:45.361240666 +0200 -+++ firefox-57.0b8/widget/gtk/nsWindow.cpp 2017-10-16 12:11:45.369240636 +0200 -@@ -85,6 +85,7 @@ - #include "nsIPropertyBag2.h" - #include "GLContext.h" - #include "gfx2DGlue.h" -+#include "nsLookAndFeel.h" - - #ifdef ACCESSIBILITY - #include "mozilla/a11y/Accessible.h" -@@ -139,6 +140,8 @@ using namespace mozilla::widget; - - #include "mozilla/layers/APZCTreeManager.h" - -+#include "gtkdrawing.h" -+ - using namespace mozilla; - using namespace mozilla::gfx; - using namespace mozilla::widget; -@@ -186,6 +189,8 @@ static gboolean expose_event_cb - #else - static gboolean expose_event_cb (GtkWidget *widget, - cairo_t *rect); -+static gboolean expose_event_decoration_draw_cb (GtkWidget *widget, -+ cairo_t *cr); - #endif - static gboolean configure_event_cb (GtkWidget *widget, - GdkEventConfigure *event); -@@ -231,7 +236,6 @@ static void screen_composited_change - gpointer user_data); - static void widget_composited_changed_cb (GtkWidget* widget, - gpointer user_data); -- - #if (MOZ_WIDGET_GTK == 3) - static void scale_changed_cb (GtkWidget* widget, - GParamSpec* aPSpec, -@@ -440,6 +444,7 @@ nsWindow::nsWindow() - - mContainer = nullptr; - mGdkWindow = nullptr; -+ mIsCSDEnabled = false; - mShell = nullptr; - mCompositorWidgetDelegate = nullptr; - mHasMappedToplevel = false; -@@ -481,6 +486,9 @@ nsWindow::nsWindow() - mLastScrollEventTime = GDK_CURRENT_TIME; - #endif - mPendingConfigures = 0; -+ mDrawWindowDecoration = false; -+ mDecorationSize = {0,0,0,0}; -+ mCSDSupportLevel = CSD_SUPPORT_UNKNOWN; - } - - nsWindow::~nsWindow() -@@ -1479,8 +1487,8 @@ LayoutDeviceIntRect - nsWindow::GetScreenBounds() - { - LayoutDeviceIntRect rect; -- if (mIsTopLevel && mContainer) { -- // use the point including window decorations -+ if (mIsTopLevel && mContainer && !IsClientDecorated()) { -+ // use the point including default Gtk+ window decorations - gint x, y; - gdk_window_get_root_origin(gtk_widget_get_window(GTK_WIDGET(mContainer)), &x, &y); - rect.MoveTo(GdkPointToDevicePixels({ x, y })); -@@ -1606,6 +1614,10 @@ nsWindow::SetCursor(nsCursor aCursor) - return; - - gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(mContainer)), newCursor); -+ if (IsClientDecorated()) { -+ gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(mShell)), -+ newCursor); -+ } - } - } - } -@@ -1662,6 +1674,10 @@ nsWindow::SetCursor(imgIContainer* aCurs - if (cursor) { - if (mContainer) { - gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(mContainer)), cursor); -+ if (IsClientDecorated()) { -+ gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(mShell)), -+ cursor); -+ } - rv = NS_OK; - } - #if (MOZ_WIDGET_GTK == 3) -@@ -2176,6 +2192,12 @@ nsWindow::OnExposeEvent(cairo_t *cr) - return TRUE; - } - -+ // Clip upper part of the mContainer to get visible rounded corners -+ // of GtkHeaderBar which is renderd to mShell. -+ if (mIsCSDEnabled) { -+ ApplyCSDClipping(); -+ } -+ - // If this widget uses OMTC... - if (GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_CLIENT || - GetLayerManager()->GetBackendType() == LayersBackend::LAYERS_WR) { -@@ -2586,6 +2608,53 @@ nsWindow::OnMotionNotifyEvent(GdkEventMo - } - } - #endif /* MOZ_X11 */ -+ // Client is decorated and we're getting the motion event for mShell -+ // window which draws the CSD decorations around mContainer. -+ if (IsClientDecorated()) { -+ if (aEvent->window == gtk_widget_get_window(mShell)) { -+ GdkWindowEdge edge; -+ LayoutDeviceIntPoint refPoint = -+ GdkEventCoordsToDevicePixels(aEvent->x, aEvent->y); -+ if (CheckResizerEdge(refPoint, edge)) { -+ nsCursor cursor = eCursor_none; -+ switch (edge) { -+ case GDK_WINDOW_EDGE_NORTH: -+ cursor = eCursor_n_resize; -+ break; -+ case GDK_WINDOW_EDGE_NORTH_WEST: -+ cursor = eCursor_nw_resize; -+ break; -+ case GDK_WINDOW_EDGE_NORTH_EAST: -+ cursor = eCursor_ne_resize; -+ break; -+ case GDK_WINDOW_EDGE_WEST: -+ cursor = eCursor_w_resize; -+ break; -+ case GDK_WINDOW_EDGE_EAST: -+ cursor = eCursor_e_resize; -+ break; -+ case GDK_WINDOW_EDGE_SOUTH: -+ cursor = eCursor_s_resize; -+ break; -+ case GDK_WINDOW_EDGE_SOUTH_WEST: -+ cursor = eCursor_sw_resize; -+ break; -+ case GDK_WINDOW_EDGE_SOUTH_EAST: -+ cursor = eCursor_se_resize; -+ break; -+ } -+ SetCursor(cursor); -+ return; -+ } -+ } -+ // We're not on resize handle - check if we need to reset cursor back. -+ if (mCursor == eCursor_n_resize || mCursor == eCursor_nw_resize || -+ mCursor == eCursor_ne_resize || mCursor == eCursor_w_resize || -+ mCursor == eCursor_e_resize || mCursor == eCursor_s_resize || -+ mCursor == eCursor_sw_resize || mCursor == eCursor_se_resize) { -+ SetCursor(eCursor_standard); -+ } -+ } - - WidgetMouseEvent event(true, eMouseMove, this, WidgetMouseEvent::eReal); - -@@ -2756,6 +2825,20 @@ nsWindow::OnButtonPressEvent(GdkEventBut - if (CheckForRollup(aEvent->x_root, aEvent->y_root, false, false)) - return; - -+ if (IsClientDecorated() && aEvent->window == gtk_widget_get_window(mShell)) { -+ // Check to see if the event is within our window's resize region -+ GdkWindowEdge edge; -+ LayoutDeviceIntPoint refPoint = -+ GdkEventCoordsToDevicePixels(aEvent->x, aEvent->y); -+ if (CheckResizerEdge(refPoint, edge)) { -+ gdk_window_begin_resize_drag(gtk_widget_get_window(mShell), -+ edge, aEvent->button, -+ aEvent->x_root, aEvent->y_root, -+ aEvent->time); -+ return; -+ } -+ } -+ - gdouble pressure = 0; - gdk_event_get_axis ((GdkEvent*)aEvent, GDK_AXIS_PRESSURE, &pressure); - mLastMotionPressure = pressure; -@@ -3341,6 +3424,8 @@ nsWindow::OnWindowStateEvent(GtkWidget * - #endif //ACCESSIBILITY - } - -+ UpdateClientDecorations(); -+ - if (mWidgetListener) { - mWidgetListener->SizeModeChanged(mSizeState); - if (aEvent->changed_mask & GDK_WINDOW_STATE_FULLSCREEN) { -@@ -3405,6 +3490,7 @@ nsWindow::OnCompositedChanged() - presShell->ThemeChanged(); - } - } -+ UpdateClientDecorations(); - } - - void -@@ -3593,7 +3679,8 @@ nsWindow::Create(nsIWidget* aParent, - GtkWindow *topLevelParent = nullptr; - nsWindow *parentnsWindow = nullptr; - GtkWidget *eventWidget = nullptr; -- bool shellHasCSD = false; -+ GtkWidget *drawWidget = nullptr; -+ bool drawToContainer = false; - - if (aParent) { - parentnsWindow = static_cast(aParent); -@@ -3640,29 +3727,47 @@ nsWindow::Create(nsIWidget* aParent, - GTK_WINDOW_TOPLEVEL : GTK_WINDOW_POPUP; - mShell = gtk_window_new(type); - -- bool useAlphaVisual = (mWindowType == eWindowType_popup && -- aInitData->mSupportTranslucency); -+ bool useAlphaVisual = false; -+#if (MOZ_WIDGET_GTK == 3) -+ // When CSD is available we can emulate it for toplevel windows. -+ // Content is rendered to mContainer and transparent decorations to mShell. -+ if (GetCSDSupportLevel() != CSD_SUPPORT_NONE && -+ mWindowType == eWindowType_toplevel) { -+ int32_t isCSDAvailable = false; -+ nsresult rv = LookAndFeel::GetInt(LookAndFeel::eIntID_GTKCSDAvailable, -+ &isCSDAvailable); -+ if (NS_SUCCEEDED(rv)) { -+ mIsCSDEnabled = useAlphaVisual = isCSDAvailable; -+ } -+ } else -+#endif -+ if (mWindowType == eWindowType_popup) { -+ useAlphaVisual = aInitData->mSupportTranslucency; -+ } - - // mozilla.widget.use-argb-visuals is a hidden pref defaulting to false - // to allow experimentation - if (Preferences::GetBool("mozilla.widget.use-argb-visuals", false)) - useAlphaVisual = true; - -+ // An ARGB visual is only useful if we are on a compositing -+ // window manager. -+ GdkScreen *screen = gtk_widget_get_screen(mShell); -+ if (useAlphaVisual && !gdk_screen_is_composited(screen)) { -+ useAlphaVisual = false; -+ } -+ - // We need to select an ARGB visual here instead of in - // SetTransparencyMode() because it has to be done before the -- // widget is realized. An ARGB visual is only useful if we -- // are on a compositing window manager. -+ // widget is realized. - if (useAlphaVisual) { -- GdkScreen *screen = gtk_widget_get_screen(mShell); -- if (gdk_screen_is_composited(screen)) { - #if (MOZ_WIDGET_GTK == 2) -- GdkColormap *colormap = gdk_screen_get_rgba_colormap(screen); -- gtk_widget_set_colormap(mShell, colormap); -+ GdkColormap *colormap = gdk_screen_get_rgba_colormap(screen); -+ gtk_widget_set_colormap(mShell, colormap); - #else -- GdkVisual *visual = gdk_screen_get_rgba_visual(screen); -- gtk_widget_set_visual(mShell, visual); -+ GdkVisual *visual = gdk_screen_get_rgba_visual(screen); -+ gtk_widget_set_visual(mShell, visual); - #endif -- } - } - - // We only move a general managed toplevel window if someone has -@@ -3756,24 +3861,56 @@ nsWindow::Create(nsIWidget* aParent, - mContainer = MOZ_CONTAINER(container); - - #if (MOZ_WIDGET_GTK == 3) -- // "csd" style is set when widget is realized so we need to call -- // it explicitly now. -- gtk_widget_realize(mShell); -- -- // We can't draw directly to top-level window when client side -- // decorations are enabled. We use container with GdkWindow instead. -- GtkStyleContext* style = gtk_widget_get_style_context(mShell); -- shellHasCSD = gtk_style_context_has_class(style, "csd"); --#endif -- if (!shellHasCSD) { -- // Use mShell's window for drawing and events. -- gtk_widget_set_has_window(container, FALSE); -- // Prevent GtkWindow from painting a background to flicker. -- gtk_widget_set_app_paintable(mShell, TRUE); -- } -- // Set up event widget -- eventWidget = shellHasCSD ? container : mShell; -+ /* There are tree possible situations here: -+ * -+ * 1) We're running on Gtk+ < 3.20 without any decorations. Content -+ * is rendered to mShell window and we listen Gtk+ events on mShell. -+ * 2) We're running on Gtk+ > 3.20 and window decorations are drawn -+ * by default by Gtk+. Content is rendered to mContainer, -+ * we listen events on mContainer. mShell contains default Gtk+ -+ * window decorations rendered by Gtk+. -+ * 3) We're running on Gtk+ > 3.20 and both window decorations and -+ * content is rendered by gecko. We emulate Gtk+ decoration rendering -+ * to mShell and we need to listen Gtk events on both mShell -+ * and mContainer. -+ */ -+ -+ // When client side decorations are enabled (rendered by us or by Gtk+) -+ // the decoration is rendered to mShell (toplevel) window and -+ // we draw our content to mContainer. -+ if (mIsCSDEnabled) { -+ drawToContainer = true; -+ } else { -+ // mIsCSDEnabled can be disabled by preference so look at actual -+ // toplevel window style to to detect active "csd" style. -+ // The "csd" style is set when widget is realized so we need to call -+ // it explicitly now. -+ gtk_widget_realize(mShell); -+ -+ GtkStyleContext* style = gtk_widget_get_style_context(mShell); -+ drawToContainer = gtk_style_context_has_class(style, "csd"); -+ } -+#endif -+ drawWidget = (drawToContainer) ? container : mShell; -+ // When we draw decorations on our own we need to handle resize events -+ // because Gtk+ does not provide resizers for undecorated windows. -+ // The CSD on mShell borders act as resize handlers -+ // so we need to listen there. -+ eventWidget = (drawToContainer && !mIsCSDEnabled) ? container : mShell; -+ - gtk_widget_add_events(eventWidget, kEvents); -+ if (eventWidget != drawWidget) { -+ // CSD is rendered by us (not by Gtk+) so we also need to listen -+ // at mShell window for events. -+ gtk_widget_add_events(drawWidget, kEvents); -+ } -+ -+ // Prevent GtkWindow from painting a background to flicker. -+ gtk_widget_set_app_paintable(drawWidget, TRUE); -+ -+ // gtk_container_add() realizes the child widget so we need to -+ // set it now. -+ gtk_widget_set_has_window(container, drawToContainer); - - gtk_container_add(GTK_CONTAINER(mShell), container); - gtk_widget_realize(container); -@@ -3783,7 +3920,7 @@ nsWindow::Create(nsIWidget* aParent, - gtk_widget_grab_focus(container); - - // the drawing window -- mGdkWindow = gtk_widget_get_window(eventWidget); -+ mGdkWindow = gtk_widget_get_window(drawWidget); - - if (mWindowType == eWindowType_popup) { - // gdk does not automatically set the cursor for "temporary" -@@ -3856,6 +3993,11 @@ nsWindow::Create(nsIWidget* aParent, - - // label the drawing window with this object so we can find our way home - g_object_set_data(G_OBJECT(mGdkWindow), "nsWindow", this); -+ if (mIsCSDEnabled) { -+ // label the CSD window with this object so we can find our way home -+ g_object_set_data(G_OBJECT(gtk_widget_get_window(mShell)), -+ "nsWindow", this); -+ } - - if (mContainer) - g_object_set_data(G_OBJECT(mContainer), "nsWindow", this); -@@ -3893,6 +4035,10 @@ nsWindow::Create(nsIWidget* aParent, - g_signal_connect_after(default_settings, - "notify::gtk-font-name", - G_CALLBACK(theme_changed_cb), this); -+ if (mIsCSDEnabled) { -+ g_signal_connect(G_OBJECT(mShell), "draw", -+ G_CALLBACK(expose_event_decoration_draw_cb), nullptr); -+ } - } - - if (mContainer) { -@@ -3943,7 +4089,7 @@ nsWindow::Create(nsIWidget* aParent, - G_CALLBACK(drag_data_received_event_cb), nullptr); - - GtkWidget *widgets[] = { GTK_WIDGET(mContainer), -- !shellHasCSD ? mShell : nullptr }; -+ !drawToContainer ? mShell : nullptr }; - for (size_t i = 0; i < ArrayLength(widgets) && widgets[i]; ++i) { - // Visibility events are sent to the owning widget of the relevant - // window but do not propagate to parent widgets so connect on -@@ -3973,7 +4119,6 @@ nsWindow::Create(nsIWidget* aParent, - // Don't let GTK mess with the shapes of our GdkWindows - GTK_PRIVATE_SET_FLAG(eventWidget, GTK_HAS_SHAPE_MASK); - #endif -- - // These events are sent to the owning widget of the relevant window - // and propagate up to the first widget that handles the events, so we - // need only connect on mShell, if it exists, to catch events on its -@@ -4110,6 +4255,12 @@ nsWindow::NativeResize() - size.width, size.height)); - - if (mIsTopLevel) { -+ // When we draw decorations add extra space to draw shadows -+ // around the main window. -+ if (mDrawWindowDecoration) { -+ size.width += mDecorationSize.left + mDecorationSize.right; -+ size.height += mDecorationSize.top + mDecorationSize.bottom; -+ } - gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height); - } - else if (mContainer) { -@@ -4166,6 +4317,11 @@ nsWindow::NativeMoveResize() - if (mIsTopLevel) { - // x and y give the position of the window manager frame top-left. - gtk_window_move(GTK_WINDOW(mShell), topLeft.x, topLeft.y); -+ -+ if (mDrawWindowDecoration) { -+ size.width += mDecorationSize.left + mDecorationSize.right; -+ size.height += mDecorationSize.top + mDecorationSize.bottom; -+ } - // This sets the client window size. - gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height); - } -@@ -5524,6 +5680,33 @@ expose_event_cb(GtkWidget *widget, cairo - - return FALSE; - } -+ -+/* static */ -+gboolean -+expose_event_decoration_draw_cb(GtkWidget *widget, cairo_t *cr) -+{ -+ GdkWindow* gdkWindow = gtk_widget_get_window(widget); -+ if (gtk_cairo_should_draw_window(cr, gdkWindow)) { -+ RefPtr window = get_window_for_gtk_widget(widget); -+ if (!window) { -+ NS_WARNING("Cannot get nsWindow from GtkWidget"); -+ } -+ else if (window->IsClientDecorated()) { -+ cairo_save(cr); -+ gtk_cairo_transform_to_window(cr, widget, gdkWindow); -+ -+ GdkRectangle rect = {0,0,0,0}; -+ gtk_window_get_size(GTK_WINDOW(widget), &rect.width, &rect.height); -+ moz_gtk_window_decoration_paint(cr, &rect); -+ -+ rect.height = 40; -+ moz_gtk_header_bar_paint(cr, &rect); -+ cairo_restore(cr); -+ } -+ } -+ return TRUE; -+} -+ - #endif //MOZ_WIDGET_GTK == 2 - - static gboolean -@@ -6576,6 +6759,28 @@ nsWindow::ClearCachedResources() - } - } - -+NS_IMETHODIMP -+nsWindow::SetNonClientMargins(LayoutDeviceIntMargin &aMargins) -+{ -+ SetDrawsInTitlebar(aMargins.top == 0); -+ return NS_OK; -+} -+ -+void -+nsWindow::SetDrawsInTitlebar(bool aState) -+{ -+ if (!mIsCSDEnabled || aState == mDrawWindowDecoration) -+ return; -+ -+ if (mShell) { -+ gtk_window_set_decorated(GTK_WINDOW(mShell), !aState); -+ gtk_widget_set_app_paintable(mShell, aState); -+ } -+ -+ mDrawWindowDecoration = aState; -+ UpdateClientDecorations(); -+} -+ - gint - nsWindow::GdkScaleFactor() - { -@@ -6846,6 +7051,157 @@ nsWindow::SynthesizeNativeTouchPoint(uin - } - #endif - -+bool -+nsWindow::IsClientDecorated() const -+{ -+ return mDrawWindowDecoration && mSizeState == nsSizeMode_Normal; -+} -+ -+int -+nsWindow::GetClientResizerSize() -+{ -+ if (!mShell) -+ return 0; -+ -+ // GTK uses a default size of 20px as of 3.20. -+ gint size = 20; -+ gtk_widget_style_get(mShell, "decoration-resize-handle", &size, nullptr); -+ -+ return GdkCoordToDevicePixels(size); -+} -+ -+nsWindow::CSDSupportLevel -+nsWindow::GetCSDSupportLevel() { -+ if (mCSDSupportLevel != CSD_SUPPORT_UNKNOWN) { -+ return mCSDSupportLevel; -+ } -+ // TODO: MATE -+ const char* currentDesktop = getenv("XDG_CURRENT_DESKTOP"); -+ if (currentDesktop) { -+ if (strcmp(currentDesktop, "GNOME") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_FULL; -+ } else if (strcmp(currentDesktop, "XFCE") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_FULL; -+ } else if (strcmp(currentDesktop, "X-Cinnamon") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_FULL; -+ } else if (strcmp(currentDesktop, "KDE") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_FLAT; -+ } else if (strcmp(currentDesktop, "LXDE") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_FLAT; -+ } else if (strcmp(currentDesktop, "openbox") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_FLAT; -+ } else if (strcmp(currentDesktop, "i3") == 0) { -+ mCSDSupportLevel = CSD_SUPPORT_NONE; -+ } else { -+ mCSDSupportLevel = CSD_SUPPORT_NONE; -+ } -+ } -+ return mCSDSupportLevel; -+} -+ -+void -+nsWindow::UpdateClientDecorations() -+{ -+ // When the CSD is not fully supported by window manager (ie. WM is not -+ // expecting that application is going to draw window shadows) we can't -+ // add shadows widths to the window margin. That would lead to completely -+ // opaque black border of the window. -+ if (!mDrawWindowDecoration || GetCSDSupportLevel() != CSD_SUPPORT_FULL) -+ return; -+ -+ gint top = 0, right = 0, bottom = 0, left = 0; -+ if (mSizeState == nsSizeMode_Normal) { -+ moz_gtk_get_window_border(&top, &right, &bottom, &left); -+ } -+ -+ static auto sGdkWindowSetShadowWidth = -+ (void (*)(GdkWindow*, gint, gint, gint, gint)) -+ dlsym(RTLD_DEFAULT, "gdk_window_set_shadow_width"); -+ sGdkWindowSetShadowWidth(gtk_widget_get_window(mShell), -+ left, right, top, bottom); -+ -+ mDecorationSize.left = left; -+ mDecorationSize.right = right; -+ mDecorationSize.top = top; -+ mDecorationSize.bottom = bottom; -+ -+ // Gtk+ doesn't like when we set mContainer margin bigger than actual -+ // mContainer window size. That happens when we're called early and the -+ // mShell/mContainer is not allocated/resized yet and has default 1x1 size. -+ // Just resize to some minimal value which will be changed -+ // by Gecko soon. -+ GtkAllocation allocation; -+ gtk_widget_get_allocation(GTK_WIDGET(mContainer), &allocation); -+ if (allocation.width < left + right || allocation.height < top + bottom) { -+ gtk_widget_get_preferred_width(GTK_WIDGET(mContainer), nullptr, -+ &allocation.width); -+ gtk_widget_get_preferred_height(GTK_WIDGET(mContainer), nullptr, -+ &allocation.height); -+ allocation.width += left + right + 1; -+ allocation.height += top + bottom + 1; -+ gtk_widget_size_allocate(GTK_WIDGET(mContainer), &allocation); -+ } -+ -+ gtk_widget_set_margin_left(GTK_WIDGET(mContainer), mDecorationSize.left); -+ gtk_widget_set_margin_right(GTK_WIDGET(mContainer), mDecorationSize.right); -+ gtk_widget_set_margin_top(GTK_WIDGET(mContainer), mDecorationSize.top); -+ gtk_widget_set_margin_bottom(GTK_WIDGET(mContainer), mDecorationSize.bottom); -+} -+ -+void -+nsWindow::ApplyCSDClipping() -+{ -+ if (IsClientDecorated()) { -+ gint top, right, bottom, left; -+ moz_gtk_get_header_bar_border(&top, &right, &bottom, &left); -+ cairo_rectangle_int_t rect = { 0, top, mBounds.width, mBounds.height}; -+ cairo_region_t *region = cairo_region_create_rectangle(&rect); -+ gdk_window_shape_combine_region(mGdkWindow, region, 0, 0); -+ cairo_region_destroy(region); -+ } else { -+ gdk_window_shape_combine_region(mGdkWindow, nullptr, 0, 0); -+ } -+} -+ -+bool -+nsWindow::CheckResizerEdge(LayoutDeviceIntPoint aPoint, GdkWindowEdge& aOutEdge) -+{ -+ gint scale = GdkScaleFactor(); -+ gint left = scale * mDecorationSize.left; -+ gint top = scale * mDecorationSize.top; -+ gint right = scale * mDecorationSize.right; -+ gint bottom = scale * mDecorationSize.bottom; -+ -+ int resizerSize = GetClientResizerSize(); -+ int topDist = aPoint.y; -+ int leftDist = aPoint.x; -+ int rightDist = mBounds.width - aPoint.x; -+ int bottomDist = mBounds.height - aPoint.y; -+ -+ //TODO -> wrong sizes -+ -+ if (leftDist <= resizerSize && topDist <= resizerSize) { -+ aOutEdge = GDK_WINDOW_EDGE_NORTH_WEST; -+ } else if (rightDist <= resizerSize && topDist <= resizerSize) { -+ aOutEdge = GDK_WINDOW_EDGE_NORTH_EAST; -+ } else if (leftDist <= resizerSize && bottomDist <= resizerSize) { -+ aOutEdge = GDK_WINDOW_EDGE_SOUTH_WEST; -+ } else if (rightDist <= resizerSize && bottomDist <= resizerSize) { -+ aOutEdge = GDK_WINDOW_EDGE_SOUTH_EAST; -+ } else if (topDist <= top) { -+ aOutEdge = GDK_WINDOW_EDGE_NORTH; -+ } else if (leftDist <= left) { -+ aOutEdge = GDK_WINDOW_EDGE_WEST; -+ } else if (rightDist <= right) { -+ aOutEdge = GDK_WINDOW_EDGE_EAST; -+ } else if (bottomDist <= bottom) { -+ aOutEdge = GDK_WINDOW_EDGE_SOUTH; -+ } else { -+ return false; -+ } -+ return true; -+} -+ - int32_t - nsWindow::RoundsWidgetCoordinatesTo() - { -diff -up firefox-57.0b8/widget/gtk/nsWindow.h.1399611 firefox-57.0b8/widget/gtk/nsWindow.h ---- firefox-57.0b8/widget/gtk/nsWindow.h.1399611 2017-09-15 06:15:40.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/nsWindow.h 2017-10-16 12:11:45.369240636 +0200 -@@ -123,6 +123,7 @@ public: - double aHeight, - bool aRepaint) override; - virtual bool IsEnabled() const override; -+ bool IsComposited() const; - - void SetZIndex(int32_t aZIndex) override; - virtual void SetSizeMode(nsSizeMode aMode) override; -@@ -351,6 +352,9 @@ public: - #endif - virtual void GetCompositorWidgetInitData(mozilla::widget::CompositorWidgetInitData* aInitData) override; - -+ NS_IMETHOD SetNonClientMargins(LayoutDeviceIntMargin& aMargins) override; -+ void SetDrawsInTitlebar(bool aState) override; -+ - // HiDPI scale conversion - gint GdkScaleFactor(); - -@@ -367,6 +371,9 @@ public: - LayoutDeviceIntRect GdkRectToDevicePixels(GdkRectangle rect); - - virtual bool WidgetTypeSupportsAcceleration() override; -+ -+ // Decorations -+ bool IsClientDecorated() const; - protected: - virtual ~nsWindow(); - -@@ -384,6 +391,16 @@ protected: - - virtual void RegisterTouchWindow() override; - -+ int GetClientResizerSize(); -+ -+ // Informs the window manager about the size of the shadows surrounding -+ // a client-side decorated window. -+ void UpdateClientDecorations(); -+ -+ // Returns true if the given point (in device pixels) is within a resizer -+ // region of the window. Only used when drawing decorations client side. -+ bool CheckResizerEdge(LayoutDeviceIntPoint aPoint, GdkWindowEdge& aOutEdge); -+ - nsCOMPtr mParent; - // Is this a toplevel window? - bool mIsTopLevel; -@@ -432,12 +449,12 @@ private: - gint* aRootX, gint* aRootY); - void ClearCachedResources(); - nsIWidgetListener* GetListener(); -- bool IsComposited() const; -- -+ void ApplyCSDClipping(); - - GtkWidget *mShell; - MozContainer *mContainer; - GdkWindow *mGdkWindow; -+ bool mIsCSDEnabled; - PlatformCompositorWidgetDelegate* mCompositorWidgetDelegate; - - -@@ -536,6 +553,10 @@ private: - // leaving fullscreen - nsSizeMode mLastSizeMode; - -+ // If true, draw our own window decorations (where supported). -+ bool mDrawWindowDecoration; -+ GtkBorder mDecorationSize; -+ - static bool DragInProgress(void); - - void DispatchMissedButtonReleases(GdkEventCrossing *aGdkEvent); -@@ -567,6 +588,17 @@ private: - RefPtr mIMContext; - - mozilla::UniquePtr mCurrentTimeGetter; -+ typedef enum { CSD_SUPPORT_FULL, // CSD including shadows -+ CSD_SUPPORT_FLAT, // CSD without shadows -+ CSD_SUPPORT_NONE, // WM does not support CSD at all -+ CSD_SUPPORT_UNKNOWN -+ } CSDSupportLevel; -+ /** -+ * Get the support of Client Side Decoration by checking -+ * the XDG_CURRENT_DESKTOP environment variable. -+ */ -+ CSDSupportLevel GetCSDSupportLevel(); -+ CSDSupportLevel mCSDSupportLevel; - }; - - #endif /* __nsWindow_h__ */ -diff -up firefox-57.0b8/widget/gtk/WidgetStyleCache.cpp.1399611 firefox-57.0b8/widget/gtk/WidgetStyleCache.cpp ---- firefox-57.0b8/widget/gtk/WidgetStyleCache.cpp.1399611 2017-09-15 06:15:40.000000000 +0200 -+++ firefox-57.0b8/widget/gtk/WidgetStyleCache.cpp 2017-10-16 12:11:45.369240636 +0200 -@@ -26,10 +26,14 @@ static GtkStyleContext* - GetCssNodeStyleInternal(WidgetNodeType aNodeType); - - static GtkWidget* --CreateWindowWidget() -+CreateWindowWidget(WidgetNodeType type) - { - GtkWidget *widget = gtk_window_new(GTK_WINDOW_POPUP); - gtk_widget_set_name(widget, "MozillaGtkWidget"); -+ if (type == MOZ_GTK_WINDOW_CSD) { -+ GtkStyleContext* style = gtk_widget_get_style_context(widget); -+ gtk_style_context_add_class(style, "csd"); -+ } - return widget; - } - -@@ -101,7 +105,7 @@ CreateTooltipWidget() - { - MOZ_ASSERT(gtk_check_version(3, 20, 0) != nullptr, - "CreateTooltipWidget should be used for Gtk < 3.20 only."); -- GtkWidget* widget = CreateWindowWidget(); -+ GtkWidget* widget = CreateWindowWidget(MOZ_GTK_WINDOW); - GtkStyleContext* style = gtk_widget_get_style_context(widget); - gtk_style_context_add_class(style, GTK_STYLE_CLASS_TOOLTIP); - return widget; -@@ -529,11 +533,82 @@ CreateNotebookWidget() - } - - static GtkWidget* -+CreateHeaderBar(bool aMaximized) -+{ -+ MOZ_ASSERT(gtk_check_version(3, 10, 0) == nullptr, -+ "GtkHeaderBar is only available on GTK 3.10+."); -+ if (gtk_check_version(3, 10, 0) != nullptr) -+ return nullptr; -+ -+ static auto sGtkHeaderBarNewPtr = (GtkWidget* (*)()) -+ dlsym(RTLD_DEFAULT, "gtk_header_bar_new"); -+ static const char* MOZ_GTK_STYLE_CLASS_TITLEBAR = "titlebar"; -+ -+ GtkWidget* headerbar = sGtkHeaderBarNewPtr(); -+ if (aMaximized) { -+ GtkWidget *window = gtk_window_new(GTK_WINDOW_POPUP); -+ gtk_widget_set_name(window, "MozillaMaximizedGtkWidget"); -+ GtkStyleContext* style = gtk_widget_get_style_context(window); -+ gtk_style_context_add_class(style, "maximized"); -+ GtkWidget *fixed = gtk_fixed_new(); -+ gtk_container_add(GTK_CONTAINER(window), fixed); -+ gtk_container_add(GTK_CONTAINER(fixed), headerbar); -+ // Save the window container so we don't leak it. -+ sWidgetStorage[MOZ_GTK_WINDOW_MAXIMIZED] = window; -+ } else { -+ AddToWindowContainer(headerbar); -+ } -+ -+ // Emulate what create_titlebar() at gtkwindow.c does. -+ GtkStyleContext* style = gtk_widget_get_style_context(headerbar); -+ gtk_style_context_add_class(style, MOZ_GTK_STYLE_CLASS_TITLEBAR); -+ gtk_style_context_add_class(style, "default-decoration"); -+ -+ return headerbar; -+} -+ -+// TODO - Also return style for buttons located at Maximized toolbar. -+static GtkWidget* -+CreateHeaderBarButton(WidgetNodeType aWidgetType) -+{ -+ MOZ_ASSERT(gtk_check_version(3, 10, 0) == nullptr, -+ "GtkHeaderBar is only available on GTK 3.10+."); -+ -+ if (gtk_check_version(3, 10, 0) != nullptr) -+ return nullptr; -+ -+ static const char* MOZ_GTK_STYLE_CLASS_TITLEBUTTON = "titlebutton"; -+ -+ GtkWidget* widget = gtk_button_new(); -+ gtk_container_add(GTK_CONTAINER(GetWidget(MOZ_GTK_HEADER_BAR)), widget); -+ -+ GtkStyleContext* style = gtk_widget_get_style_context(widget); -+ gtk_style_context_add_class(style, MOZ_GTK_STYLE_CLASS_TITLEBUTTON); -+ -+ switch (aWidgetType) { -+ case MOZ_GTK_HEADER_BAR_BUTTON_CLOSE: -+ gtk_style_context_add_class(style, "close"); -+ break; -+ case MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE: -+ gtk_style_context_add_class(style, "minimize"); -+ break; -+ case MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE: -+ gtk_style_context_add_class(style, "maximize"); -+ break; -+ default: -+ break; -+ } -+ -+ return widget; -+} -+ -+static GtkWidget* - CreateWidget(WidgetNodeType aWidgetType) - { - switch (aWidgetType) { - case MOZ_GTK_WINDOW: -- return CreateWindowWidget(); -+ case MOZ_GTK_WINDOW_CSD: -+ return CreateWindowWidget(aWidgetType); - case MOZ_GTK_WINDOW_CONTAINER: - return CreateWindowContainerWidget(); - case MOZ_GTK_CHECKBUTTON_CONTAINER: -@@ -610,6 +685,13 @@ CreateWidget(WidgetNodeType aWidgetType) - return CreateComboBoxEntryButtonWidget(); - case MOZ_GTK_COMBOBOX_ENTRY_ARROW: - return CreateComboBoxEntryArrowWidget(); -+ case MOZ_GTK_HEADER_BAR: -+ case MOZ_GTK_HEADER_BAR_MAXIMIZED: -+ return CreateHeaderBar(aWidgetType == MOZ_GTK_HEADER_BAR_MAXIMIZED); -+ case MOZ_GTK_HEADER_BAR_BUTTON_CLOSE: -+ case MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE: -+ case MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE: -+ return CreateHeaderBarButton(aWidgetType); - default: - /* Not implemented */ - return nullptr; -@@ -1049,6 +1131,10 @@ GetCssNodeStyleInternal(WidgetNodeType a - GtkWidget* widget = GetWidget(MOZ_GTK_NOTEBOOK); - return gtk_widget_get_style_context(widget); - } -+ case MOZ_GTK_WINDOW_DECORATION: -+ style = CreateChildCSSNode("decoration", -+ MOZ_GTK_WINDOW_CSD); -+ break; - default: - return GetWidgetRootStyle(aNodeType); - } -@@ -1214,6 +1300,8 @@ ResetWidgetCache(void) - /* This will destroy all of our widgets */ - if (sWidgetStorage[MOZ_GTK_WINDOW]) - gtk_widget_destroy(sWidgetStorage[MOZ_GTK_WINDOW]); -+ if (sWidgetStorage[MOZ_GTK_WINDOW_MAXIMIZED]) -+ gtk_widget_destroy(sWidgetStorage[MOZ_GTK_WINDOW_MAXIMIZED]); - - /* Clear already freed arrays */ - mozilla::PodArrayZero(sWidgetStorage); -diff -up firefox-57.0b8/widget/LookAndFeel.h.1399611 firefox-57.0b8/widget/LookAndFeel.h ---- firefox-57.0b8/widget/LookAndFeel.h.1399611 2017-09-16 18:22:54.000000000 +0200 -+++ firefox-57.0b8/widget/LookAndFeel.h 2017-10-16 12:11:45.369240636 +0200 -@@ -405,6 +405,30 @@ public: - eIntID_PhysicalHomeButton, - - /* -+ * A boolean value indicating whether client-side decorations are -+ * supported by the user's GTK version. -+ */ -+ eIntID_GTKCSDAvailable, -+ -+ /* -+ * A boolean value indicating whether client-side decorations should -+ * contain a minimize button. -+ */ -+ eIntID_GTKCSDMinimizeButton, -+ -+ /* -+ * A boolean value indicating whether client-side decorations should -+ * contain a maximize button. -+ */ -+ eIntID_GTKCSDMaximizeButton, -+ -+ /* -+ * A boolean value indicating whether client-side decorations should -+ * contain a close button. -+ */ -+ eIntID_GTKCSDCloseButton, -+ -+ /* - * Controls whether overlay scrollbars display when the user moves - * the mouse in a scrollable frame. - */