/* -*- Mode: C++; tab-width: 2; 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 "nsNativeThemeGTK.h" #include "nsThemeConstants.h" #include "gtkdrawing.h" #include "ScreenHelperGTK.h" #include "gfx2DGlue.h" #include "nsIObserverService.h" #include "nsIServiceManager.h" #include "nsIFrame.h" #include "nsIPresShell.h" #include "nsIContent.h" #include "nsViewManager.h" #include "nsNameSpaceManager.h" #include "nsGfxCIID.h" #include "nsTransform2D.h" #include "nsMenuFrame.h" #include "prlink.h" #include "nsGkAtoms.h" #include "nsAttrValueInlines.h" #include "mozilla/dom/HTMLInputElement.h" #include "mozilla/EventStates.h" #include "mozilla/Services.h" #include #include #include #include "gfxContext.h" #include "gfxPlatformGtk.h" #include "gfxGdkNativeRenderer.h" #include "mozilla/gfx/BorrowedContext.h" #include "mozilla/gfx/HelpersCairo.h" #include "mozilla/gfx/PathHelpers.h" #include "mozilla/Preferences.h" #ifdef MOZ_X11 #ifdef CAIRO_HAS_XLIB_SURFACE #include "cairo-xlib.h" #endif #ifdef CAIRO_HAS_XLIB_XRENDER_SURFACE #include "cairo-xlib-xrender.h" #endif #endif #include #include using namespace mozilla; using namespace mozilla::gfx; using namespace mozilla::widget; using mozilla::dom::HTMLInputElement; NS_IMPL_ISUPPORTS_INHERITED(nsNativeThemeGTK, nsNativeTheme, nsITheme, nsIObserver) static int gLastGdkError; // Return scale factor of the monitor where the window is located // by the most part or layout.css.devPixelsPerPx pref if set to > 0. static inline gint GetMonitorScaleFactor(nsIFrame* aFrame) { // When the layout.css.devPixelsPerPx is set the scale can be < 1, // the real monitor scale cannot go under 1. double scale = nsIWidget::DefaultScaleOverride(); if (scale <= 0) { nsIWidget* rootWidget = aFrame->PresContext()->GetRootWidget(); if (rootWidget) { // We need to use GetDefaultScale() despite it returns monitor scale // factor multiplied by font scale factor because it is the only scale // updated in nsPuppetWidget. // Since we don't want to apply font scale factor for UI elements // (because GTK does not do so) we need to remove that from returned // value. The computed monitor scale factor needs to be rounded before // casting to integer to avoid rounding errors which would lead to // returning 0. int monitorScale = int(round(rootWidget->GetDefaultScale().scale / gfxPlatformGtk::GetFontScaleFactor())); // Monitor scale can be negative if it has not been initialized in the // puppet widget yet. We also make sure that we return positive value. if (monitorScale < 1) { return 1; } return monitorScale; } } // Use monitor scaling factor where devPixelsPerPx is set return ScreenHelperGTK::GetGTKMonitorScaleFactor(); } nsNativeThemeGTK::nsNativeThemeGTK() { if (moz_gtk_init() != MOZ_GTK_SUCCESS) { memset(mDisabledWidgetTypes, 0xff, sizeof(mDisabledWidgetTypes)); return; } // We have to call moz_gtk_shutdown before the event loop stops running. nsCOMPtr obsServ = mozilla::services::GetObserverService(); obsServ->AddObserver(this, "xpcom-shutdown", false); ThemeChanged(); } nsNativeThemeGTK::~nsNativeThemeGTK() {} NS_IMETHODIMP nsNativeThemeGTK::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData) { if (!nsCRT::strcmp(aTopic, "xpcom-shutdown")) { moz_gtk_shutdown(); } else { NS_NOTREACHED("unexpected topic"); return NS_ERROR_UNEXPECTED; } return NS_OK; } void nsNativeThemeGTK::RefreshWidgetWindow(nsIFrame* aFrame) { nsIPresShell* shell = GetPresShell(aFrame); if (!shell) return; nsViewManager* vm = shell->GetViewManager(); if (!vm) return; vm->InvalidateAllViews(); } static bool IsFrameContentNodeInNamespace(nsIFrame* aFrame, uint32_t aNamespace) { nsIContent* content = aFrame ? aFrame->GetContent() : nullptr; if (!content) return false; return content->IsInNamespace(aNamespace); } static bool IsWidgetTypeDisabled(uint8_t* aDisabledVector, uint8_t aWidgetType) { MOZ_ASSERT(aWidgetType < ThemeWidgetType_COUNT); return (aDisabledVector[aWidgetType >> 3] & (1 << (aWidgetType & 7))) != 0; } static void SetWidgetTypeDisabled(uint8_t* aDisabledVector, uint8_t aWidgetType) { MOZ_ASSERT(aWidgetType < ThemeWidgetType_COUNT); aDisabledVector[aWidgetType >> 3] |= (1 << (aWidgetType & 7)); } static inline uint16_t GetWidgetStateKey(uint8_t aWidgetType, GtkWidgetState* aWidgetState) { return (aWidgetState->active | aWidgetState->focused << 1 | aWidgetState->inHover << 2 | aWidgetState->disabled << 3 | aWidgetState->isDefault << 4 | aWidgetType << 5); } static bool IsWidgetStateSafe(uint8_t* aSafeVector, uint8_t aWidgetType, GtkWidgetState* aWidgetState) { MOZ_ASSERT(aWidgetType < ThemeWidgetType_COUNT); uint16_t key = GetWidgetStateKey(aWidgetType, aWidgetState); return (aSafeVector[key >> 3] & (1 << (key & 7))) != 0; } static void SetWidgetStateSafe(uint8_t* aSafeVector, uint8_t aWidgetType, GtkWidgetState* aWidgetState) { MOZ_ASSERT(aWidgetType < ThemeWidgetType_COUNT); uint16_t key = GetWidgetStateKey(aWidgetType, aWidgetState); aSafeVector[key >> 3] |= (1 << (key & 7)); } /* static */ GtkTextDirection nsNativeThemeGTK::GetTextDirection( nsIFrame* aFrame) { // IsFrameRTL() treats vertical-rl modes as right-to-left (in addition to // horizontal text with direction=RTL), rather than just considering the // text direction. GtkTextDirection does not have distinct values for // vertical writing modes, but considering the block flow direction is // important for resizers and scrollbar elements, at least. return IsFrameRTL(aFrame) ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR; } // Returns positive for negative margins (otherwise 0). gint nsNativeThemeGTK::GetTabMarginPixels(nsIFrame* aFrame) { nscoord margin = IsBottomTab(aFrame) ? aFrame->GetUsedMargin().top : aFrame->GetUsedMargin().bottom; return std::min( MOZ_GTK_TAB_MARGIN_MASK, std::max(0, aFrame->PresContext()->AppUnitsToDevPixels(-margin))); } static bool ShouldScrollbarButtonBeDisabled(int32_t aCurpos, int32_t aMaxpos, uint8_t aWidgetType) { return ( (aCurpos == 0 && (aWidgetType == NS_THEME_SCROLLBARBUTTON_UP || aWidgetType == NS_THEME_SCROLLBARBUTTON_LEFT)) || (aCurpos == aMaxpos && (aWidgetType == NS_THEME_SCROLLBARBUTTON_DOWN || aWidgetType == NS_THEME_SCROLLBARBUTTON_RIGHT))); } bool nsNativeThemeGTK::GetGtkWidgetAndState(uint8_t aWidgetType, nsIFrame* aFrame, WidgetNodeType& aGtkWidgetType, GtkWidgetState* aState, gint* aWidgetFlags) { if (aState) { // For XUL checkboxes and radio buttons, the state of the parent // determines our state. nsIFrame* stateFrame = aFrame; if (aFrame && ((aWidgetFlags && (aWidgetType == NS_THEME_CHECKBOX || aWidgetType == NS_THEME_RADIO)) || aWidgetType == NS_THEME_CHECKBOX_LABEL || aWidgetType == NS_THEME_RADIO_LABEL)) { nsAtom* atom = nullptr; if (IsFrameContentNodeInNamespace(aFrame, kNameSpaceID_XUL)) { if (aWidgetType == NS_THEME_CHECKBOX_LABEL || aWidgetType == NS_THEME_RADIO_LABEL) { // Adjust stateFrame so GetContentState finds the correct state. stateFrame = aFrame = aFrame->GetParent()->GetParent(); } else { // GetContentState knows to look one frame up for radio/checkbox // widgets, so don't adjust stateFrame here. aFrame = aFrame->GetParent(); } if (aWidgetFlags) { if (!atom) { atom = (aWidgetType == NS_THEME_CHECKBOX || aWidgetType == NS_THEME_CHECKBOX_LABEL) ? nsGkAtoms::checked : nsGkAtoms::selected; } *aWidgetFlags = CheckBooleanAttr(aFrame, atom); } } else { if (aWidgetFlags) { *aWidgetFlags = 0; HTMLInputElement* inputElt = HTMLInputElement::FromContent(aFrame->GetContent()); if (inputElt && inputElt->Checked()) *aWidgetFlags |= MOZ_GTK_WIDGET_CHECKED; if (GetIndeterminate(aFrame)) *aWidgetFlags |= MOZ_GTK_WIDGET_INCONSISTENT; } } } else if (aWidgetType == NS_THEME_TOOLBARBUTTON_DROPDOWN || aWidgetType == NS_THEME_TREEHEADERSORTARROW || aWidgetType == NS_THEME_BUTTON_ARROW_PREVIOUS || aWidgetType == NS_THEME_BUTTON_ARROW_NEXT || aWidgetType == NS_THEME_BUTTON_ARROW_UP || aWidgetType == NS_THEME_BUTTON_ARROW_DOWN) { // The state of an arrow comes from its parent. stateFrame = aFrame = aFrame->GetParent(); } EventStates eventState = GetContentState(stateFrame, aWidgetType); aState->disabled = IsDisabled(aFrame, eventState) || IsReadOnly(aFrame); aState->active = eventState.HasState(NS_EVENT_STATE_ACTIVE); aState->focused = eventState.HasState(NS_EVENT_STATE_FOCUS); aState->inHover = eventState.HasState(NS_EVENT_STATE_HOVER); aState->isDefault = IsDefaultButton(aFrame); aState->canDefault = FALSE; // XXX fix me aState->depressed = FALSE; if (aWidgetType == NS_THEME_FOCUS_OUTLINE) { aState->disabled = FALSE; aState->active = FALSE; aState->inHover = FALSE; aState->isDefault = FALSE; aState->canDefault = FALSE; aState->focused = TRUE; aState->depressed = TRUE; // see moz_gtk_entry_paint() } else if (aWidgetType == NS_THEME_BUTTON || aWidgetType == NS_THEME_TOOLBARBUTTON || aWidgetType == NS_THEME_DUALBUTTON || aWidgetType == NS_THEME_TOOLBARBUTTON_DROPDOWN || aWidgetType == NS_THEME_MENULIST || aWidgetType == NS_THEME_MENULIST_BUTTON) { aState->active &= aState->inHover; } if (IsFrameContentNodeInNamespace(aFrame, kNameSpaceID_XUL)) { // For these widget types, some element (either a child or parent) // actually has element focus, so we check the focused attribute // to see whether to draw in the focused state. if (aWidgetType == NS_THEME_NUMBER_INPUT || aWidgetType == NS_THEME_TEXTFIELD || aWidgetType == NS_THEME_TEXTFIELD_MULTILINE || aWidgetType == NS_THEME_MENULIST_TEXTFIELD || aWidgetType == NS_THEME_SPINNER_TEXTFIELD || aWidgetType == NS_THEME_RADIO_CONTAINER || aWidgetType == NS_THEME_RADIO_LABEL) { aState->focused = IsFocused(aFrame); } else if (aWidgetType == NS_THEME_RADIO || aWidgetType == NS_THEME_CHECKBOX) { // In XUL, checkboxes and radios shouldn't have focus rings, their // labels do aState->focused = FALSE; } if (aWidgetType == NS_THEME_SCROLLBARTHUMB_VERTICAL || aWidgetType == NS_THEME_SCROLLBARTHUMB_HORIZONTAL) { // for scrollbars we need to go up two to go from the thumb to // the slider to the actual scrollbar object nsIFrame* tmpFrame = aFrame->GetParent()->GetParent(); aState->curpos = CheckIntAttr(tmpFrame, nsGkAtoms::curpos, 0); aState->maxpos = CheckIntAttr(tmpFrame, nsGkAtoms::maxpos, 100); if (CheckBooleanAttr(aFrame, nsGkAtoms::active)) { aState->active = TRUE; // Set hover state to emulate Gtk style of active scrollbar thumb aState->inHover = TRUE; } } if (aWidgetType == NS_THEME_SCROLLBARBUTTON_UP || aWidgetType == NS_THEME_SCROLLBARBUTTON_DOWN || aWidgetType == NS_THEME_SCROLLBARBUTTON_LEFT || aWidgetType == NS_THEME_SCROLLBARBUTTON_RIGHT) { // set the state to disabled when the scrollbar is scrolled to // the beginning or the end, depending on the button type. int32_t curpos = CheckIntAttr(aFrame, nsGkAtoms::curpos, 0); int32_t maxpos = CheckIntAttr(aFrame, nsGkAtoms::maxpos, 100); if (ShouldScrollbarButtonBeDisabled(curpos, maxpos, aWidgetType)) { aState->disabled = true; } // In order to simulate native GTK scrollbar click behavior, // we set the active attribute on the element to true if it's // pressed with any mouse button. // This allows us to show that it's active without setting :active else if (CheckBooleanAttr(aFrame, nsGkAtoms::active)) aState->active = true; if (aWidgetFlags) { *aWidgetFlags = GetScrollbarButtonType(aFrame); if (aWidgetType - NS_THEME_SCROLLBARBUTTON_UP < 2) *aWidgetFlags |= MOZ_GTK_STEPPER_VERTICAL; } } // menu item state is determined by the attribute "_moz-menuactive", // and not by the mouse hovering (accessibility). as a special case, // menus which are children of a menu bar are only marked as prelight // if they are open, not on normal hover. if (aWidgetType == NS_THEME_MENUITEM || aWidgetType == NS_THEME_CHECKMENUITEM || aWidgetType == NS_THEME_RADIOMENUITEM || aWidgetType == NS_THEME_MENUSEPARATOR || aWidgetType == NS_THEME_MENUARROW) { bool isTopLevel = false; nsMenuFrame* menuFrame = do_QueryFrame(aFrame); if (menuFrame) { isTopLevel = menuFrame->IsOnMenuBar(); } if (isTopLevel) { aState->inHover = menuFrame->IsOpen(); } else { aState->inHover = CheckBooleanAttr(aFrame, nsGkAtoms::menuactive); } aState->active = FALSE; if (aWidgetType == NS_THEME_CHECKMENUITEM || aWidgetType == NS_THEME_RADIOMENUITEM) { *aWidgetFlags = 0; if (aFrame && aFrame->GetContent() && aFrame->GetContent()->IsElement()) { *aWidgetFlags = aFrame->GetContent()->AsElement()->AttrValueIs( kNameSpaceID_None, nsGkAtoms::checked, nsGkAtoms::_true, eIgnoreCase); } } } // A button with drop down menu open or an activated toggle button // should always appear depressed. if (aWidgetType == NS_THEME_BUTTON || aWidgetType == NS_THEME_TOOLBARBUTTON || aWidgetType == NS_THEME_DUALBUTTON || aWidgetType == NS_THEME_TOOLBARBUTTON_DROPDOWN || aWidgetType == NS_THEME_MENULIST || aWidgetType == NS_THEME_MENULIST_BUTTON) { bool menuOpen = IsOpenButton(aFrame); aState->depressed = IsCheckedButton(aFrame) || menuOpen; // we must not highlight buttons with open drop down menus on hover. aState->inHover = aState->inHover && !menuOpen; } // When the input field of the drop down button has focus, some themes // should draw focus for the drop down button as well. if (aWidgetType == NS_THEME_MENULIST_BUTTON && aWidgetFlags) { *aWidgetFlags = CheckBooleanAttr(aFrame, nsGkAtoms::parentfocused); } } } switch (aWidgetType) { case NS_THEME_BUTTON: if (aWidgetFlags) *aWidgetFlags = GTK_RELIEF_NORMAL; aGtkWidgetType = MOZ_GTK_BUTTON; break; case NS_THEME_TOOLBARBUTTON: case NS_THEME_DUALBUTTON: if (aWidgetFlags) *aWidgetFlags = GTK_RELIEF_NONE; aGtkWidgetType = MOZ_GTK_TOOLBAR_BUTTON; break; case NS_THEME_FOCUS_OUTLINE: aGtkWidgetType = MOZ_GTK_ENTRY; break; case NS_THEME_CHECKBOX: case NS_THEME_RADIO: aGtkWidgetType = (aWidgetType == NS_THEME_RADIO) ? MOZ_GTK_RADIOBUTTON : MOZ_GTK_CHECKBUTTON; break; case NS_THEME_SCROLLBARBUTTON_UP: case NS_THEME_SCROLLBARBUTTON_DOWN: case NS_THEME_SCROLLBARBUTTON_LEFT: case NS_THEME_SCROLLBARBUTTON_RIGHT: aGtkWidgetType = MOZ_GTK_SCROLLBAR_BUTTON; break; case NS_THEME_SCROLLBAR_VERTICAL: aGtkWidgetType = MOZ_GTK_SCROLLBAR_VERTICAL; if (GetWidgetTransparency(aFrame, aWidgetType) == eOpaque) *aWidgetFlags = MOZ_GTK_TRACK_OPAQUE; else *aWidgetFlags = 0; break; case NS_THEME_SCROLLBAR_HORIZONTAL: aGtkWidgetType = MOZ_GTK_SCROLLBAR_HORIZONTAL; if (GetWidgetTransparency(aFrame, aWidgetType) == eOpaque) *aWidgetFlags = MOZ_GTK_TRACK_OPAQUE; else *aWidgetFlags = 0; break; case NS_THEME_SCROLLBARTRACK_HORIZONTAL: aGtkWidgetType = MOZ_GTK_SCROLLBAR_TROUGH_HORIZONTAL; break; case NS_THEME_SCROLLBARTRACK_VERTICAL: aGtkWidgetType = MOZ_GTK_SCROLLBAR_TROUGH_VERTICAL; break; case NS_THEME_SCROLLBARTHUMB_VERTICAL: aGtkWidgetType = MOZ_GTK_SCROLLBAR_THUMB_VERTICAL; break; case NS_THEME_SCROLLBARTHUMB_HORIZONTAL: aGtkWidgetType = MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL; break; case NS_THEME_INNER_SPIN_BUTTON: aGtkWidgetType = MOZ_GTK_INNER_SPIN_BUTTON; break; case NS_THEME_SPINNER: aGtkWidgetType = MOZ_GTK_SPINBUTTON; break; case NS_THEME_SPINNER_UPBUTTON: aGtkWidgetType = MOZ_GTK_SPINBUTTON_UP; break; case NS_THEME_SPINNER_DOWNBUTTON: aGtkWidgetType = MOZ_GTK_SPINBUTTON_DOWN; break; case NS_THEME_SPINNER_TEXTFIELD: aGtkWidgetType = MOZ_GTK_SPINBUTTON_ENTRY; break; case NS_THEME_RANGE: { if (IsRangeHorizontal(aFrame)) { if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_HORIZONTAL; aGtkWidgetType = MOZ_GTK_SCALE_HORIZONTAL; } else { if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_VERTICAL; aGtkWidgetType = MOZ_GTK_SCALE_VERTICAL; } break; } case NS_THEME_RANGE_THUMB: { if (IsRangeHorizontal(aFrame)) { if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_HORIZONTAL; aGtkWidgetType = MOZ_GTK_SCALE_THUMB_HORIZONTAL; } else { if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_VERTICAL; aGtkWidgetType = MOZ_GTK_SCALE_THUMB_VERTICAL; } break; } case NS_THEME_SCALE_HORIZONTAL: if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_HORIZONTAL; aGtkWidgetType = MOZ_GTK_SCALE_HORIZONTAL; break; case NS_THEME_SCALETHUMB_HORIZONTAL: if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_HORIZONTAL; aGtkWidgetType = MOZ_GTK_SCALE_THUMB_HORIZONTAL; break; case NS_THEME_SCALE_VERTICAL: if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_VERTICAL; aGtkWidgetType = MOZ_GTK_SCALE_VERTICAL; break; case NS_THEME_SEPARATOR: aGtkWidgetType = MOZ_GTK_TOOLBAR_SEPARATOR; break; case NS_THEME_SCALETHUMB_VERTICAL: if (aWidgetFlags) *aWidgetFlags = GTK_ORIENTATION_VERTICAL; aGtkWidgetType = MOZ_GTK_SCALE_THUMB_VERTICAL; break; case NS_THEME_TOOLBARGRIPPER: aGtkWidgetType = MOZ_GTK_GRIPPER; break; case NS_THEME_RESIZER: aGtkWidgetType = MOZ_GTK_RESIZER; break; case NS_THEME_NUMBER_INPUT: case NS_THEME_TEXTFIELD: aGtkWidgetType = MOZ_GTK_ENTRY; break; case NS_THEME_TEXTFIELD_MULTILINE: #ifdef MOZ_WIDGET_GTK aGtkWidgetType = MOZ_GTK_TEXT_VIEW; #else aGtkWidgetType = MOZ_GTK_ENTRY; #endif break; case NS_THEME_LISTBOX: case NS_THEME_TREEVIEW: aGtkWidgetType = MOZ_GTK_TREEVIEW; break; case NS_THEME_TREEHEADERCELL: if (aWidgetFlags) { // In this case, the flag denotes whether the header is the sorted one // or not if (GetTreeSortDirection(aFrame) == eTreeSortDirection_Natural) *aWidgetFlags = false; else *aWidgetFlags = true; } aGtkWidgetType = MOZ_GTK_TREE_HEADER_CELL; break; case NS_THEME_TREEHEADERSORTARROW: if (aWidgetFlags) { switch (GetTreeSortDirection(aFrame)) { case eTreeSortDirection_Ascending: *aWidgetFlags = GTK_ARROW_DOWN; break; case eTreeSortDirection_Descending: *aWidgetFlags = GTK_ARROW_UP; break; case eTreeSortDirection_Natural: default: /* This prevents the treecolums from getting smaller * and wider when switching sort direction off and on * */ *aWidgetFlags = GTK_ARROW_NONE; break; } } aGtkWidgetType = MOZ_GTK_TREE_HEADER_SORTARROW; break; case NS_THEME_TREETWISTY: aGtkWidgetType = MOZ_GTK_TREEVIEW_EXPANDER; if (aWidgetFlags) *aWidgetFlags = GTK_EXPANDER_COLLAPSED; break; case NS_THEME_TREETWISTYOPEN: aGtkWidgetType = MOZ_GTK_TREEVIEW_EXPANDER; if (aWidgetFlags) *aWidgetFlags = GTK_EXPANDER_EXPANDED; break; case NS_THEME_MENULIST: aGtkWidgetType = MOZ_GTK_DROPDOWN; if (aWidgetFlags) *aWidgetFlags = IsFrameContentNodeInNamespace(aFrame, kNameSpaceID_XHTML); break; case NS_THEME_MENULIST_TEXT: return false; // nothing to do, but prevents the bg from being drawn case NS_THEME_MENULIST_TEXTFIELD: aGtkWidgetType = MOZ_GTK_DROPDOWN_ENTRY; break; case NS_THEME_MENULIST_BUTTON: aGtkWidgetType = MOZ_GTK_DROPDOWN_ARROW; break; case NS_THEME_TOOLBARBUTTON_DROPDOWN: case NS_THEME_BUTTON_ARROW_DOWN: case NS_THEME_BUTTON_ARROW_UP: case NS_THEME_BUTTON_ARROW_NEXT: case NS_THEME_BUTTON_ARROW_PREVIOUS: aGtkWidgetType = MOZ_GTK_TOOLBARBUTTON_ARROW; if (aWidgetFlags) { *aWidgetFlags = GTK_ARROW_DOWN; if (aWidgetType == NS_THEME_BUTTON_ARROW_UP) *aWidgetFlags = GTK_ARROW_UP; else if (aWidgetType == NS_THEME_BUTTON_ARROW_NEXT) *aWidgetFlags = GTK_ARROW_RIGHT; else if (aWidgetType == NS_THEME_BUTTON_ARROW_PREVIOUS) *aWidgetFlags = GTK_ARROW_LEFT; } break; case NS_THEME_CHECKBOX_CONTAINER: aGtkWidgetType = MOZ_GTK_CHECKBUTTON_CONTAINER; break; case NS_THEME_RADIO_CONTAINER: aGtkWidgetType = MOZ_GTK_RADIOBUTTON_CONTAINER; break; case NS_THEME_CHECKBOX_LABEL: aGtkWidgetType = MOZ_GTK_CHECKBUTTON_LABEL; break; case NS_THEME_RADIO_LABEL: aGtkWidgetType = MOZ_GTK_RADIOBUTTON_LABEL; break; case NS_THEME_TOOLBAR: aGtkWidgetType = MOZ_GTK_TOOLBAR; break; case NS_THEME_TOOLTIP: aGtkWidgetType = MOZ_GTK_TOOLTIP; break; case NS_THEME_STATUSBARPANEL: case NS_THEME_RESIZERPANEL: aGtkWidgetType = MOZ_GTK_FRAME; break; case NS_THEME_PROGRESSBAR: case NS_THEME_PROGRESSBAR_VERTICAL: aGtkWidgetType = MOZ_GTK_PROGRESSBAR; break; case NS_THEME_PROGRESSCHUNK: case NS_THEME_PROGRESSCHUNK_VERTICAL: { nsIFrame* stateFrame = aFrame->GetParent(); EventStates eventStates = GetContentState(stateFrame, aWidgetType); aGtkWidgetType = IsIndeterminateProgress(stateFrame, eventStates) ? IsVerticalProgress(stateFrame) ? MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE : MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE : MOZ_GTK_PROGRESS_CHUNK; } break; case NS_THEME_TAB_SCROLL_ARROW_BACK: case NS_THEME_TAB_SCROLL_ARROW_FORWARD: if (aWidgetFlags) *aWidgetFlags = aWidgetType == NS_THEME_TAB_SCROLL_ARROW_BACK ? GTK_ARROW_LEFT : GTK_ARROW_RIGHT; aGtkWidgetType = MOZ_GTK_TAB_SCROLLARROW; break; case NS_THEME_TABPANELS: aGtkWidgetType = MOZ_GTK_TABPANELS; break; case NS_THEME_TAB: { if (IsBottomTab(aFrame)) { aGtkWidgetType = MOZ_GTK_TAB_BOTTOM; } else { aGtkWidgetType = MOZ_GTK_TAB_TOP; } if (aWidgetFlags) { /* First bits will be used to store max(0,-bmargin) where bmargin * is the bottom margin of the tab in pixels (resp. top margin, * for bottom tabs). */ *aWidgetFlags = GetTabMarginPixels(aFrame); if (IsSelectedTab(aFrame)) *aWidgetFlags |= MOZ_GTK_TAB_SELECTED; if (IsFirstTab(aFrame)) *aWidgetFlags |= MOZ_GTK_TAB_FIRST; } } break; case NS_THEME_SPLITTER: if (IsHorizontal(aFrame)) aGtkWidgetType = MOZ_GTK_SPLITTER_VERTICAL; else aGtkWidgetType = MOZ_GTK_SPLITTER_HORIZONTAL; break; case NS_THEME_MENUBAR: aGtkWidgetType = MOZ_GTK_MENUBAR; break; case NS_THEME_MENUPOPUP: aGtkWidgetType = MOZ_GTK_MENUPOPUP; break; case NS_THEME_MENUITEM: { nsMenuFrame* menuFrame = do_QueryFrame(aFrame); if (menuFrame && menuFrame->IsOnMenuBar()) { aGtkWidgetType = MOZ_GTK_MENUBARITEM; break; } } aGtkWidgetType = MOZ_GTK_MENUITEM; break; case NS_THEME_MENUSEPARATOR: aGtkWidgetType = MOZ_GTK_MENUSEPARATOR; break; case NS_THEME_MENUARROW: aGtkWidgetType = MOZ_GTK_MENUARROW; break; case NS_THEME_CHECKMENUITEM: aGtkWidgetType = MOZ_GTK_CHECKMENUITEM; break; case NS_THEME_RADIOMENUITEM: aGtkWidgetType = MOZ_GTK_RADIOMENUITEM; break; case NS_THEME_WINDOW: case NS_THEME_DIALOG: aGtkWidgetType = MOZ_GTK_WINDOW; break; 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_RESTORE; break; default: return false; } return true; } class SystemCairoClipper : public ClipExporter { public: explicit SystemCairoClipper(cairo_t* aContext) : mContext(aContext) {} void BeginClip(const Matrix& aTransform) override { cairo_matrix_t mat; GfxMatrixToCairoMatrix(aTransform, mat); cairo_set_matrix(mContext, &mat); cairo_new_path(mContext); } void MoveTo(const Point& aPoint) override { cairo_move_to(mContext, aPoint.x, aPoint.y); mCurrentPoint = aPoint; } void LineTo(const Point& aPoint) override { cairo_line_to(mContext, aPoint.x, aPoint.y); mCurrentPoint = aPoint; } void BezierTo(const Point& aCP1, const Point& aCP2, const Point& aCP3) override { cairo_curve_to(mContext, aCP1.x, aCP1.y, aCP2.x, aCP2.y, aCP3.x, aCP3.y); mCurrentPoint = aCP3; } void QuadraticBezierTo(const Point& aCP1, const Point& aCP2) override { Point CP0 = CurrentPoint(); Point CP1 = (CP0 + aCP1 * 2.0) / 3.0; Point CP2 = (aCP2 + aCP1 * 2.0) / 3.0; Point CP3 = aCP2; cairo_curve_to(mContext, CP1.x, CP1.y, CP2.x, CP2.y, CP3.x, CP3.y); mCurrentPoint = aCP2; } void Arc(const Point& aOrigin, float aRadius, float aStartAngle, float aEndAngle, bool aAntiClockwise) override { ArcToBezier(this, aOrigin, Size(aRadius, aRadius), aStartAngle, aEndAngle, aAntiClockwise); } void Close() override { cairo_close_path(mContext); } void EndClip() override { cairo_clip(mContext); } Point CurrentPoint() const override { return mCurrentPoint; } private: cairo_t* mContext; Point mCurrentPoint; }; static void DrawThemeWithCairo(gfxContext* aContext, DrawTarget* aDrawTarget, GtkWidgetState aState, WidgetNodeType aGTKWidgetType, gint aFlags, GtkTextDirection aDirection, gint aScaleFactor, bool aSnapped, const Point& aDrawOrigin, const nsIntSize& aDrawSize, GdkRectangle& aGDKRect, nsITheme::Transparency aTransparency) { Point drawOffset; Matrix transform; if (!aSnapped) { // If we are not snapped, we depend on the DT for translation. drawOffset = aDrawOrigin; transform = aDrawTarget->GetTransform().PreTranslate(aDrawOrigin); } else { // Otherwise, we only need to take the device offset into account. drawOffset = aDrawOrigin - aContext->GetDeviceOffset(); transform = Matrix::Translation(drawOffset); } if (aScaleFactor != 1) transform.PreScale(aScaleFactor, aScaleFactor); cairo_matrix_t mat; GfxMatrixToCairoMatrix(transform, mat); nsIntSize clipSize((aDrawSize.width + aScaleFactor - 1) / aScaleFactor, (aDrawSize.height + aScaleFactor - 1) / aScaleFactor); #ifndef MOZ_TREE_CAIRO // Directly use the Cairo draw target to render the widget if using system // Cairo everywhere. BorrowedCairoContext borrowCairo(aDrawTarget); if (borrowCairo.mCairo) { cairo_set_matrix(borrowCairo.mCairo, &mat); cairo_new_path(borrowCairo.mCairo); cairo_rectangle(borrowCairo.mCairo, 0, 0, clipSize.width, clipSize.height); cairo_clip(borrowCairo.mCairo); moz_gtk_widget_paint(aGTKWidgetType, borrowCairo.mCairo, &aGDKRect, &aState, aFlags, aDirection); borrowCairo.Finish(); return; } #endif // A direct Cairo draw target is not available, so we need to create a // temporary one. #if defined(MOZ_X11) && defined(CAIRO_HAS_XLIB_SURFACE) // If using a Cairo xlib surface, then try to reuse it. BorrowedXlibDrawable borrow(aDrawTarget); if (borrow.GetDrawable()) { nsIntSize size = borrow.GetSize(); cairo_surface_t* surf = nullptr; // Check if the surface is using XRender. #ifdef CAIRO_HAS_XLIB_XRENDER_SURFACE if (borrow.GetXRenderFormat()) { surf = cairo_xlib_surface_create_with_xrender_format( borrow.GetDisplay(), borrow.GetDrawable(), borrow.GetScreen(), borrow.GetXRenderFormat(), size.width, size.height); } else { #else if (!borrow.GetXRenderFormat()) { #endif surf = cairo_xlib_surface_create(borrow.GetDisplay(), borrow.GetDrawable(), borrow.GetVisual(), size.width, size.height); } if (!NS_WARN_IF(!surf)) { Point offset = borrow.GetOffset(); if (offset != Point()) { cairo_surface_set_device_offset(surf, offset.x, offset.y); } cairo_t* cr = cairo_create(surf); if (!NS_WARN_IF(!cr)) { RefPtr clipper = new SystemCairoClipper(cr); aContext->ExportClip(*clipper); cairo_set_matrix(cr, &mat); cairo_new_path(cr); cairo_rectangle(cr, 0, 0, clipSize.width, clipSize.height); cairo_clip(cr); moz_gtk_widget_paint(aGTKWidgetType, cr, &aGDKRect, &aState, aFlags, aDirection); cairo_destroy(cr); } cairo_surface_destroy(surf); } borrow.Finish(); return; } #endif // Check if the widget requires complex masking that must be composited. // Try to directly write to the draw target's pixels if possible. uint8_t* data; nsIntSize size; int32_t stride; SurfaceFormat format; IntPoint origin; if (aDrawTarget->LockBits(&data, &size, &stride, &format, &origin)) { // Create a Cairo image surface context the device rectangle. cairo_surface_t* surf = cairo_image_surface_create_for_data( data, GfxFormatToCairoFormat(format), size.width, size.height, stride); if (!NS_WARN_IF(!surf)) { if (origin != IntPoint()) { cairo_surface_set_device_offset(surf, -origin.x, -origin.y); } cairo_t* cr = cairo_create(surf); if (!NS_WARN_IF(!cr)) { RefPtr clipper = new SystemCairoClipper(cr); aContext->ExportClip(*clipper); cairo_set_matrix(cr, &mat); cairo_new_path(cr); cairo_rectangle(cr, 0, 0, clipSize.width, clipSize.height); cairo_clip(cr); moz_gtk_widget_paint(aGTKWidgetType, cr, &aGDKRect, &aState, aFlags, aDirection); cairo_destroy(cr); } cairo_surface_destroy(surf); } aDrawTarget->ReleaseBits(data); } else { // If the widget has any transparency, make sure to choose an alpha format. format = aTransparency != nsITheme::eOpaque ? SurfaceFormat::B8G8R8A8 : aDrawTarget->GetFormat(); // Create a temporary data surface to render the widget into. RefPtr dataSurface = Factory::CreateDataSourceSurface( aDrawSize, format, aTransparency != nsITheme::eOpaque); DataSourceSurface::MappedSurface map; if (!NS_WARN_IF( !(dataSurface && dataSurface->Map(DataSourceSurface::MapType::WRITE, &map)))) { // Create a Cairo image surface wrapping the data surface. cairo_surface_t* surf = cairo_image_surface_create_for_data( map.mData, GfxFormatToCairoFormat(format), aDrawSize.width, aDrawSize.height, map.mStride); cairo_t* cr = nullptr; if (!NS_WARN_IF(!surf)) { cr = cairo_create(surf); if (!NS_WARN_IF(!cr)) { if (aScaleFactor != 1) { cairo_scale(cr, aScaleFactor, aScaleFactor); } moz_gtk_widget_paint(aGTKWidgetType, cr, &aGDKRect, &aState, aFlags, aDirection); } } // Unmap the surface before using it as a source dataSurface->Unmap(); if (cr) { // The widget either needs to be masked or has transparency, so use the // slower drawing path. aDrawTarget->DrawSurface( dataSurface, Rect(aSnapped ? drawOffset - aDrawTarget->GetTransform().GetTranslation() : drawOffset, Size(aDrawSize)), Rect(0, 0, aDrawSize.width, aDrawSize.height)); cairo_destroy(cr); } if (surf) { cairo_surface_destroy(surf); } } } } bool nsNativeThemeGTK::GetExtraSizeForWidget(nsIFrame* aFrame, uint8_t aWidgetType, nsIntMargin* aExtra) { *aExtra = nsIntMargin(0, 0, 0, 0); // Allow an extra one pixel above and below the thumb for certain // GTK2 themes (Ximian Industrial, Bluecurve, Misty, at least); // We modify the frame's overflow area. See bug 297508. switch (aWidgetType) { case NS_THEME_SCROLLBARTHUMB_VERTICAL: aExtra->top = aExtra->bottom = 1; break; case NS_THEME_SCROLLBARTHUMB_HORIZONTAL: aExtra->left = aExtra->right = 1; break; case NS_THEME_BUTTON: { if (IsDefaultButton(aFrame)) { // Some themes draw a default indicator outside the widget, // include that in overflow gint top, left, bottom, right; moz_gtk_button_get_default_overflow(&top, &left, &bottom, &right); aExtra->top = top; aExtra->right = right; aExtra->bottom = bottom; aExtra->left = left; break; } return false; } case NS_THEME_FOCUS_OUTLINE: { moz_gtk_get_focus_outline_size(&aExtra->left, &aExtra->top); aExtra->right = aExtra->left; aExtra->bottom = aExtra->top; break; } case NS_THEME_TAB: { if (!IsSelectedTab(aFrame)) return false; gint gap_height = moz_gtk_get_tab_thickness( IsBottomTab(aFrame) ? MOZ_GTK_TAB_BOTTOM : MOZ_GTK_TAB_TOP); if (!gap_height) return false; int32_t extra = gap_height - GetTabMarginPixels(aFrame); if (extra <= 0) return false; if (IsBottomTab(aFrame)) { aExtra->top = extra; } else { aExtra->bottom = extra; } return false; } default: return false; } gint scale = GetMonitorScaleFactor(aFrame); aExtra->top *= scale; aExtra->right *= scale; aExtra->bottom *= scale; aExtra->left *= scale; return true; } NS_IMETHODIMP nsNativeThemeGTK::DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame, uint8_t aWidgetType, const nsRect& aRect, const nsRect& aDirtyRect) { GtkWidgetState state; WidgetNodeType gtkWidgetType; GtkTextDirection direction = GetTextDirection(aFrame); gint flags; if (!GetGtkWidgetAndState(aWidgetType, aFrame, gtkWidgetType, &state, &flags)) return NS_OK; gfxContext* ctx = aContext; nsPresContext* presContext = aFrame->PresContext(); gfxRect rect = presContext->AppUnitsToGfxUnits(aRect); gfxRect dirtyRect = presContext->AppUnitsToGfxUnits(aDirtyRect); gint scaleFactor = GetMonitorScaleFactor(aFrame); // Align to device pixels where sensible // to provide crisper and faster drawing. // Don't snap if it's a non-unit scale factor. We're going to have to take // slow paths then in any case. bool snapped = ctx->UserToDevicePixelSnapped(rect); if (snapped) { // Leave rect in device coords but make dirtyRect consistent. dirtyRect = ctx->UserToDevice(dirtyRect); } // Translate the dirty rect so that it is wrt the widget top-left. dirtyRect.MoveBy(-rect.TopLeft()); // Round out the dirty rect to gdk pixels to ensure that gtk draws // enough pixels for interpolation to device pixels. dirtyRect.RoundOut(); // GTK themes can only draw an integer number of pixels // (even when not snapped). nsIntRect widgetRect(0, 0, NS_lround(rect.Width()), NS_lround(rect.Height())); nsIntRect overflowRect(widgetRect); nsIntMargin extraSize; if (GetExtraSizeForWidget(aFrame, aWidgetType, &extraSize)) { overflowRect.Inflate(extraSize); } // This is the rectangle that will actually be drawn, in gdk pixels nsIntRect drawingRect(int32_t(dirtyRect.X()), int32_t(dirtyRect.Y()), int32_t(dirtyRect.Width()), int32_t(dirtyRect.Height())); if (widgetRect.IsEmpty() || !drawingRect.IntersectRect(overflowRect, drawingRect)) return NS_OK; NS_ASSERTION(!IsWidgetTypeDisabled(mDisabledWidgetTypes, aWidgetType), "Trying to render an unsafe widget!"); bool safeState = IsWidgetStateSafe(mSafeWidgetStates, aWidgetType, &state); if (!safeState) { gLastGdkError = 0; gdk_error_trap_push(); } Transparency transparency = GetWidgetTransparency(aFrame, aWidgetType); // gdk rectangles are wrt the drawing rect. GdkRectangle gdk_rect = { -drawingRect.x / scaleFactor, -drawingRect.y / scaleFactor, widgetRect.width / scaleFactor, widgetRect.height / scaleFactor}; // Save actual widget scale to GtkWidgetState as we don't provide // nsFrame to gtk3drawing routines. state.scale = scaleFactor; // translate everything so (0,0) is the top left of the drawingRect gfxPoint origin = rect.TopLeft() + drawingRect.TopLeft(); DrawThemeWithCairo(ctx, aContext->GetDrawTarget(), state, gtkWidgetType, flags, direction, scaleFactor, snapped, ToPoint(origin), drawingRect.Size(), gdk_rect, transparency); if (!safeState) { // gdk_flush() call from expose event crashes Gtk+ on Wayland // (Gnome BZ #773307) if (GDK_IS_X11_DISPLAY(gdk_display_get_default())) { gdk_flush(); } gLastGdkError = gdk_error_trap_pop(); if (gLastGdkError) { #ifdef DEBUG printf( "GTK theme failed for widget type %d, error was %d, state was " "[active=%d,focused=%d,inHover=%d,disabled=%d]\n", aWidgetType, gLastGdkError, state.active, state.focused, state.inHover, state.disabled); #endif NS_WARNING("GTK theme failed; disabling unsafe widget"); SetWidgetTypeDisabled(mDisabledWidgetTypes, aWidgetType); // force refresh of the window, because the widget was not // successfully drawn it must be redrawn using the default look RefreshWidgetWindow(aFrame); } else { SetWidgetStateSafe(mSafeWidgetStates, aWidgetType, &state); } } // Indeterminate progress bar are animated. if (gtkWidgetType == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE || gtkWidgetType == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE) { if (!QueueAnimatedContentForRefresh(aFrame->GetContent(), 30)) { NS_WARNING("unable to animate widget!"); } } return NS_OK; } bool nsNativeThemeGTK::CreateWebRenderCommandsForWidget( mozilla::wr::DisplayListBuilder& aBuilder, mozilla::wr::IpcResourceUpdateQueue& aResources, const mozilla::layers::StackingContextHelper& aSc, mozilla::layers::WebRenderLayerManager* aManager, nsIFrame* aFrame, uint8_t aWidgetType, const nsRect& aRect) { nsPresContext* presContext = aFrame->PresContext(); wr::LayoutRect bounds = aSc.ToRelativeLayoutRect(LayoutDeviceRect::FromAppUnits( aRect, presContext->AppUnitsPerDevPixel())); switch (aWidgetType) { case NS_THEME_WINDOW: case NS_THEME_DIALOG: aBuilder.PushRect( bounds, bounds, true, wr::ToColorF(Color::FromABGR(LookAndFeel::GetColor( LookAndFeel::eColorID_WindowBackground, NS_RGBA(0, 0, 0, 0))))); return true; default: return false; } } WidgetNodeType nsNativeThemeGTK::NativeThemeToGtkTheme(uint8_t aWidgetType, nsIFrame* aFrame) { WidgetNodeType gtkWidgetType; gint unusedFlags; if (!GetGtkWidgetAndState(aWidgetType, aFrame, gtkWidgetType, nullptr, &unusedFlags)) { MOZ_ASSERT_UNREACHABLE("Unknown native widget to gtk widget mapping"); return MOZ_GTK_WINDOW; } return gtkWidgetType; } void nsNativeThemeGTK::GetCachedWidgetBorder(nsIFrame* aFrame, uint8_t aWidgetType, GtkTextDirection aDirection, nsIntMargin* aResult) { aResult->SizeTo(0, 0, 0, 0); WidgetNodeType gtkWidgetType; gint unusedFlags; if (GetGtkWidgetAndState(aWidgetType, aFrame, gtkWidgetType, nullptr, &unusedFlags)) { MOZ_ASSERT(0 <= gtkWidgetType && gtkWidgetType < MOZ_GTK_WIDGET_NODE_COUNT); uint8_t cacheIndex = gtkWidgetType / 8; uint8_t cacheBit = 1u << (gtkWidgetType % 8); if (mBorderCacheValid[cacheIndex] & cacheBit) { *aResult = mBorderCache[gtkWidgetType]; } else { moz_gtk_get_widget_border(gtkWidgetType, &aResult->left, &aResult->top, &aResult->right, &aResult->bottom, aDirection); if (aWidgetType != MOZ_GTK_DROPDOWN) { // depends on aDirection mBorderCacheValid[cacheIndex] |= cacheBit; mBorderCache[gtkWidgetType] = *aResult; } } } } NS_IMETHODIMP nsNativeThemeGTK::GetWidgetBorder(nsDeviceContext* aContext, nsIFrame* aFrame, uint8_t aWidgetType, nsIntMargin* aResult) { GtkTextDirection direction = GetTextDirection(aFrame); aResult->top = aResult->left = aResult->right = aResult->bottom = 0; switch (aWidgetType) { case NS_THEME_SCROLLBAR_HORIZONTAL: case NS_THEME_SCROLLBAR_VERTICAL: { GtkOrientation orientation = aWidgetType == NS_THEME_SCROLLBAR_HORIZONTAL ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL; const ScrollbarGTKMetrics* metrics = GetScrollbarMetrics(orientation, true); const GtkBorder& border = metrics->border.scrollbar; aResult->top = border.top; aResult->right = border.right; aResult->bottom = border.bottom; aResult->left = border.left; } break; case NS_THEME_SCROLLBARTRACK_HORIZONTAL: case NS_THEME_SCROLLBARTRACK_VERTICAL: { GtkOrientation orientation = aWidgetType == NS_THEME_SCROLLBARTRACK_HORIZONTAL ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL; const ScrollbarGTKMetrics* metrics = GetScrollbarMetrics(orientation, true); const GtkBorder& border = metrics->border.track; aResult->top = border.top; aResult->right = border.right; aResult->bottom = border.bottom; aResult->left = border.left; } break; case NS_THEME_TOOLBOX: // gtk has no toolbox equivalent. So, although we map toolbox to // gtk's 'toolbar' for purposes of painting the widget background, // we don't use the toolbar border for toolbox. break; case NS_THEME_DUALBUTTON: // TOOLBAR_DUAL_BUTTON is an interesting case. We want a border to draw // around the entire button + dropdown, and also an inner border if you're // over the button part. But, we want the inner button to be right up // against the edge of the outer button so that the borders overlap. // To make this happen, we draw a button border for the outer button, // but don't reserve any space for it. break; case NS_THEME_TAB: { WidgetNodeType gtkWidgetType; gint flags; if (!GetGtkWidgetAndState(aWidgetType, aFrame, gtkWidgetType, nullptr, &flags)) return NS_OK; moz_gtk_get_tab_border(&aResult->left, &aResult->top, &aResult->right, &aResult->bottom, direction, (GtkTabFlags)flags, gtkWidgetType); } break; case NS_THEME_MENUITEM: case NS_THEME_CHECKMENUITEM: case NS_THEME_RADIOMENUITEM: // For regular menuitems, we will be using GetWidgetPadding instead of // GetWidgetBorder to pad up the widget's internals; other menuitems // will need to fall through and use the default case as before. if (IsRegularMenuItem(aFrame)) break; MOZ_FALLTHROUGH; default: { GetCachedWidgetBorder(aFrame, aWidgetType, direction, aResult); } } gint scale = GetMonitorScaleFactor(aFrame); aResult->top *= scale; aResult->right *= scale; aResult->bottom *= scale; aResult->left *= scale; return NS_OK; } bool nsNativeThemeGTK::GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame, uint8_t aWidgetType, nsIntMargin* aResult) { switch (aWidgetType) { case NS_THEME_BUTTON_FOCUS: case NS_THEME_TOOLBARBUTTON: 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_DUALBUTTON: case NS_THEME_TAB_SCROLL_ARROW_BACK: case NS_THEME_TAB_SCROLL_ARROW_FORWARD: case NS_THEME_MENULIST_BUTTON: case NS_THEME_TOOLBARBUTTON_DROPDOWN: case NS_THEME_BUTTON_ARROW_UP: case NS_THEME_BUTTON_ARROW_DOWN: case NS_THEME_BUTTON_ARROW_NEXT: case NS_THEME_BUTTON_ARROW_PREVIOUS: case NS_THEME_RANGE_THUMB: // Radios and checkboxes return a fixed size in GetMinimumWidgetSize // and have a meaningful baseline, so they can't have // author-specified padding. case NS_THEME_CHECKBOX: case NS_THEME_RADIO: aResult->SizeTo(0, 0, 0, 0); return true; case NS_THEME_MENUITEM: case NS_THEME_CHECKMENUITEM: case NS_THEME_RADIOMENUITEM: { // Menubar and menulist have their padding specified in CSS. if (!IsRegularMenuItem(aFrame)) return false; GetCachedWidgetBorder(aFrame, aWidgetType, GetTextDirection(aFrame), aResult); gint horizontal_padding; if (aWidgetType == NS_THEME_MENUITEM) moz_gtk_menuitem_get_horizontal_padding(&horizontal_padding); else moz_gtk_checkmenuitem_get_horizontal_padding(&horizontal_padding); aResult->left += horizontal_padding; aResult->right += horizontal_padding; gint scale = GetMonitorScaleFactor(aFrame); aResult->top *= scale; aResult->right *= scale; aResult->bottom *= scale; aResult->left *= scale; return true; } } return false; } bool nsNativeThemeGTK::GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame, uint8_t aWidgetType, nsRect* aOverflowRect) { nsIntMargin extraSize; if (!GetExtraSizeForWidget(aFrame, aWidgetType, &extraSize)) return false; int32_t p2a = aContext->AppUnitsPerDevPixel(); nsMargin m(NSIntPixelsToAppUnits(extraSize.top, p2a), NSIntPixelsToAppUnits(extraSize.right, p2a), NSIntPixelsToAppUnits(extraSize.bottom, p2a), NSIntPixelsToAppUnits(extraSize.left, p2a)); aOverflowRect->Inflate(m); return true; } NS_IMETHODIMP nsNativeThemeGTK::GetMinimumWidgetSize(nsPresContext* aPresContext, nsIFrame* aFrame, uint8_t aWidgetType, LayoutDeviceIntSize* aResult, bool* aIsOverridable) { aResult->width = aResult->height = 0; *aIsOverridable = true; switch (aWidgetType) { case NS_THEME_SCROLLBARBUTTON_UP: case NS_THEME_SCROLLBARBUTTON_DOWN: { const ScrollbarGTKMetrics* metrics = GetScrollbarMetrics(GTK_ORIENTATION_VERTICAL, true); aResult->width = metrics->size.button.width; aResult->height = metrics->size.button.height; *aIsOverridable = false; } break; case NS_THEME_SCROLLBARBUTTON_LEFT: case NS_THEME_SCROLLBARBUTTON_RIGHT: { const ScrollbarGTKMetrics* metrics = GetScrollbarMetrics(GTK_ORIENTATION_HORIZONTAL, true); aResult->width = metrics->size.button.width; aResult->height = metrics->size.button.height; *aIsOverridable = false; } break; case NS_THEME_SPLITTER: { gint metrics; if (IsHorizontal(aFrame)) { moz_gtk_splitter_get_metrics(GTK_ORIENTATION_HORIZONTAL, &metrics); aResult->width = metrics; aResult->height = 0; } else { moz_gtk_splitter_get_metrics(GTK_ORIENTATION_VERTICAL, &metrics); aResult->width = 0; aResult->height = metrics; } *aIsOverridable = false; } break; case NS_THEME_SCROLLBAR_HORIZONTAL: case NS_THEME_SCROLLBAR_VERTICAL: { /* While we enforce a minimum size for the thumb, this is ignored * for the some scrollbars if buttons are hidden (bug 513006) because * the thumb isn't a direct child of the scrollbar, unlike the buttons * or track. So add a minimum size to the track as well to prevent a * 0-width scrollbar. */ GtkOrientation orientation = aWidgetType == NS_THEME_SCROLLBAR_HORIZONTAL ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL; const ScrollbarGTKMetrics* metrics = GetScrollbarMetrics(orientation, true); aResult->width = metrics->size.scrollbar.width; aResult->height = metrics->size.scrollbar.height; } break; case NS_THEME_SCROLLBARTHUMB_VERTICAL: case NS_THEME_SCROLLBARTHUMB_HORIZONTAL: { GtkOrientation orientation = aWidgetType == NS_THEME_SCROLLBARTHUMB_HORIZONTAL ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL; const ScrollbarGTKMetrics* metrics = GetScrollbarMetrics(orientation, true); aResult->width = metrics->size.thumb.width; aResult->height = metrics->size.thumb.height; *aIsOverridable = false; } break; case NS_THEME_RANGE_THUMB: { gint thumb_length, thumb_height; if (IsRangeHorizontal(aFrame)) { moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_HORIZONTAL, &thumb_length, &thumb_height); } else { moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_VERTICAL, &thumb_height, &thumb_length); } aResult->width = thumb_length; aResult->height = thumb_height; *aIsOverridable = false; } break; case NS_THEME_RANGE: { gint scale_width, scale_height; moz_gtk_get_scale_metrics(IsRangeHorizontal(aFrame) ? GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL, &scale_width, &scale_height); aResult->width = scale_width; aResult->height = scale_height; *aIsOverridable = true; } break; case NS_THEME_SCALETHUMB_HORIZONTAL: case NS_THEME_SCALETHUMB_VERTICAL: { gint thumb_length, thumb_height; if (aWidgetType == NS_THEME_SCALETHUMB_VERTICAL) { moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_VERTICAL, &thumb_length, &thumb_height); aResult->width = thumb_height; aResult->height = thumb_length; } else { moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_HORIZONTAL, &thumb_length, &thumb_height); aResult->width = thumb_length; aResult->height = thumb_height; } *aIsOverridable = false; } break; case NS_THEME_TAB_SCROLL_ARROW_BACK: case NS_THEME_TAB_SCROLL_ARROW_FORWARD: { moz_gtk_get_tab_scroll_arrow_size(&aResult->width, &aResult->height); *aIsOverridable = false; } break; case NS_THEME_MENULIST_BUTTON: { moz_gtk_get_combo_box_entry_button_size(&aResult->width, &aResult->height); *aIsOverridable = false; } break; case NS_THEME_MENUSEPARATOR: { gint separator_height; moz_gtk_get_menu_separator_height(&separator_height); aResult->height = separator_height; *aIsOverridable = false; } break; case NS_THEME_CHECKBOX: case NS_THEME_RADIO: { const ToggleGTKMetrics* metrics = GetToggleMetrics(aWidgetType == NS_THEME_RADIO); aResult->width = metrics->minSizeWithBorder.width; aResult->height = metrics->minSizeWithBorder.height; } break; case NS_THEME_TOOLBARBUTTON_DROPDOWN: case NS_THEME_BUTTON_ARROW_UP: case NS_THEME_BUTTON_ARROW_DOWN: case NS_THEME_BUTTON_ARROW_NEXT: case NS_THEME_BUTTON_ARROW_PREVIOUS: { moz_gtk_get_arrow_size(MOZ_GTK_TOOLBARBUTTON_ARROW, &aResult->width, &aResult->height); *aIsOverridable = false; } break; case NS_THEME_WINDOW_BUTTON_CLOSE: { const ToolbarButtonGTKMetrics* metrics = GetToolbarButtonMetrics(MOZ_GTK_HEADER_BAR_BUTTON_CLOSE); aResult->width = metrics->minSizeWithBorderMargin.width; aResult->height = metrics->minSizeWithBorderMargin.height; break; } case NS_THEME_WINDOW_BUTTON_MINIMIZE: { const ToolbarButtonGTKMetrics* metrics = GetToolbarButtonMetrics(MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE); aResult->width = metrics->minSizeWithBorderMargin.width; aResult->height = metrics->minSizeWithBorderMargin.height; break; } case NS_THEME_WINDOW_BUTTON_MAXIMIZE: case NS_THEME_WINDOW_BUTTON_RESTORE: { const ToolbarButtonGTKMetrics* metrics = GetToolbarButtonMetrics(MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE); aResult->width = metrics->minSizeWithBorderMargin.width; aResult->height = metrics->minSizeWithBorderMargin.height; break; } case NS_THEME_CHECKBOX_CONTAINER: case NS_THEME_RADIO_CONTAINER: case NS_THEME_CHECKBOX_LABEL: case NS_THEME_RADIO_LABEL: case NS_THEME_BUTTON: case NS_THEME_MENULIST: case NS_THEME_TOOLBARBUTTON: case NS_THEME_TREEHEADERCELL: { if (aWidgetType == NS_THEME_MENULIST) { // Include the arrow size. moz_gtk_get_arrow_size(MOZ_GTK_DROPDOWN, &aResult->width, &aResult->height); } // else the minimum size is missing consideration of container // descendants; the value returned here will not be helpful, but the // box model may consider border and padding with child minimum sizes. nsIntMargin border; GetCachedWidgetBorder(aFrame, aWidgetType, GetTextDirection(aFrame), &border); aResult->width += border.left + border.right; aResult->height += border.top + border.bottom; } break; #ifdef MOZ_WIDGET_GTK case NS_THEME_NUMBER_INPUT: case NS_THEME_TEXTFIELD: { moz_gtk_get_entry_min_height(&aResult->height); } break; #endif case NS_THEME_SEPARATOR: { gint separator_width; moz_gtk_get_toolbar_separator_width(&separator_width); aResult->width = separator_width; } break; case NS_THEME_INNER_SPIN_BUTTON: case NS_THEME_SPINNER: // hard code these sizes aResult->width = 14; aResult->height = 26; break; case NS_THEME_TREEHEADERSORTARROW: case NS_THEME_SPINNER_UPBUTTON: case NS_THEME_SPINNER_DOWNBUTTON: // hard code these sizes aResult->width = 14; aResult->height = 13; break; case NS_THEME_RESIZER: // same as Windows to make our lives easier aResult->width = aResult->height = 15; *aIsOverridable = false; break; case NS_THEME_TREETWISTY: case NS_THEME_TREETWISTYOPEN: { gint expander_size; moz_gtk_get_treeview_expander_size(&expander_size); aResult->width = aResult->height = expander_size; *aIsOverridable = false; } break; } *aResult = *aResult * GetMonitorScaleFactor(aFrame); return NS_OK; } NS_IMETHODIMP nsNativeThemeGTK::WidgetStateChanged(nsIFrame* aFrame, uint8_t aWidgetType, nsAtom* aAttribute, bool* aShouldRepaint, const nsAttrValue* aOldValue) { // Some widget types just never change state. if (aWidgetType == NS_THEME_TOOLBOX || aWidgetType == NS_THEME_TOOLBAR || aWidgetType == NS_THEME_STATUSBAR || aWidgetType == NS_THEME_STATUSBARPANEL || aWidgetType == NS_THEME_RESIZERPANEL || aWidgetType == NS_THEME_PROGRESSCHUNK || aWidgetType == NS_THEME_PROGRESSCHUNK_VERTICAL || aWidgetType == NS_THEME_PROGRESSBAR || aWidgetType == NS_THEME_PROGRESSBAR_VERTICAL || aWidgetType == NS_THEME_MENUBAR || aWidgetType == NS_THEME_MENUPOPUP || aWidgetType == NS_THEME_TOOLTIP || aWidgetType == NS_THEME_MENUSEPARATOR || aWidgetType == NS_THEME_WINDOW || aWidgetType == NS_THEME_DIALOG) { *aShouldRepaint = false; return NS_OK; } if ((aWidgetType == NS_THEME_SCROLLBARTHUMB_VERTICAL || aWidgetType == NS_THEME_SCROLLBARTHUMB_HORIZONTAL) && aAttribute == nsGkAtoms::active) { *aShouldRepaint = true; return NS_OK; } if ((aWidgetType == NS_THEME_SCROLLBARBUTTON_UP || aWidgetType == NS_THEME_SCROLLBARBUTTON_DOWN || aWidgetType == NS_THEME_SCROLLBARBUTTON_LEFT || aWidgetType == NS_THEME_SCROLLBARBUTTON_RIGHT) && (aAttribute == nsGkAtoms::curpos || aAttribute == nsGkAtoms::maxpos)) { // If 'curpos' has changed and we are passed its old value, we can // determine whether the button's enablement actually needs to change. if (aAttribute == nsGkAtoms::curpos && aOldValue) { int32_t curpos = CheckIntAttr(aFrame, nsGkAtoms::curpos, 0); int32_t maxpos = CheckIntAttr(aFrame, nsGkAtoms::maxpos, 0); nsAutoString str; aOldValue->ToString(str); nsresult err; int32_t oldCurpos = str.ToInteger(&err); if (str.IsEmpty() || NS_FAILED(err)) { *aShouldRepaint = true; } else { bool disabledBefore = ShouldScrollbarButtonBeDisabled(oldCurpos, maxpos, aWidgetType); bool disabledNow = ShouldScrollbarButtonBeDisabled(curpos, maxpos, aWidgetType); *aShouldRepaint = (disabledBefore != disabledNow); } } else { *aShouldRepaint = true; } return NS_OK; } // XXXdwh Not sure what can really be done here. Can at least guess for // specific widgets that they're highly unlikely to have certain states. // For example, a toolbar doesn't care about any states. if (!aAttribute) { // Hover/focus/active changed. Always repaint. *aShouldRepaint = true; } else { // Check the attribute to see if it's relevant. // disabled, checked, dlgtype, default, etc. *aShouldRepaint = false; if (aAttribute == nsGkAtoms::disabled || aAttribute == nsGkAtoms::checked || aAttribute == nsGkAtoms::selected || aAttribute == nsGkAtoms::visuallyselected || aAttribute == nsGkAtoms::focused || aAttribute == nsGkAtoms::readonly || aAttribute == nsGkAtoms::_default || aAttribute == nsGkAtoms::menuactive || aAttribute == nsGkAtoms::open || aAttribute == nsGkAtoms::parentfocused) *aShouldRepaint = true; } return NS_OK; } NS_IMETHODIMP nsNativeThemeGTK::ThemeChanged() { memset(mDisabledWidgetTypes, 0, sizeof(mDisabledWidgetTypes)); memset(mSafeWidgetStates, 0, sizeof(mSafeWidgetStates)); memset(mBorderCacheValid, 0, sizeof(mBorderCacheValid)); return NS_OK; } NS_IMETHODIMP_(bool) nsNativeThemeGTK::ThemeSupportsWidget(nsPresContext* aPresContext, nsIFrame* aFrame, uint8_t aWidgetType) { if (IsWidgetTypeDisabled(mDisabledWidgetTypes, aWidgetType)) return false; switch (aWidgetType) { // Combobox dropdowns don't support native theming in vertical mode. case NS_THEME_MENULIST: case NS_THEME_MENULIST_TEXT: case NS_THEME_MENULIST_TEXTFIELD: if (aFrame && aFrame->GetWritingMode().IsVertical()) { return false; } MOZ_FALLTHROUGH; case NS_THEME_BUTTON: case NS_THEME_BUTTON_FOCUS: case NS_THEME_RADIO: case NS_THEME_CHECKBOX: case NS_THEME_TOOLBOX: // N/A case NS_THEME_TOOLBAR: case NS_THEME_TOOLBARBUTTON: case NS_THEME_DUALBUTTON: // so we can override the border with 0 case NS_THEME_TOOLBARBUTTON_DROPDOWN: case NS_THEME_BUTTON_ARROW_UP: case NS_THEME_BUTTON_ARROW_DOWN: case NS_THEME_BUTTON_ARROW_NEXT: case NS_THEME_BUTTON_ARROW_PREVIOUS: case NS_THEME_SEPARATOR: case NS_THEME_TOOLBARGRIPPER: case NS_THEME_STATUSBAR: case NS_THEME_STATUSBARPANEL: case NS_THEME_RESIZERPANEL: case NS_THEME_RESIZER: case NS_THEME_LISTBOX: // case NS_THEME_LISTITEM: case NS_THEME_TREEVIEW: // case NS_THEME_TREEITEM: case NS_THEME_TREETWISTY: // case NS_THEME_TREELINE: // case NS_THEME_TREEHEADER: case NS_THEME_TREEHEADERCELL: case NS_THEME_TREEHEADERSORTARROW: case NS_THEME_TREETWISTYOPEN: case NS_THEME_PROGRESSBAR: case NS_THEME_PROGRESSCHUNK: case NS_THEME_PROGRESSBAR_VERTICAL: case NS_THEME_PROGRESSCHUNK_VERTICAL: case NS_THEME_TAB: // case NS_THEME_TABPANEL: case NS_THEME_TABPANELS: case NS_THEME_TAB_SCROLL_ARROW_BACK: case NS_THEME_TAB_SCROLL_ARROW_FORWARD: case NS_THEME_TOOLTIP: case NS_THEME_INNER_SPIN_BUTTON: case NS_THEME_SPINNER: case NS_THEME_SPINNER_UPBUTTON: case NS_THEME_SPINNER_DOWNBUTTON: case NS_THEME_SPINNER_TEXTFIELD: // case NS_THEME_SCROLLBAR: (n/a for gtk) // case NS_THEME_SCROLLBAR_SMALL: (n/a for gtk) case NS_THEME_SCROLLBARBUTTON_UP: case NS_THEME_SCROLLBARBUTTON_DOWN: case NS_THEME_SCROLLBARBUTTON_LEFT: case NS_THEME_SCROLLBARBUTTON_RIGHT: case NS_THEME_SCROLLBAR_HORIZONTAL: case NS_THEME_SCROLLBAR_VERTICAL: case NS_THEME_SCROLLBARTRACK_HORIZONTAL: case NS_THEME_SCROLLBARTRACK_VERTICAL: case NS_THEME_SCROLLBARTHUMB_HORIZONTAL: case NS_THEME_SCROLLBARTHUMB_VERTICAL: case NS_THEME_NUMBER_INPUT: case NS_THEME_TEXTFIELD: case NS_THEME_TEXTFIELD_MULTILINE: case NS_THEME_RANGE: case NS_THEME_RANGE_THUMB: case NS_THEME_SCALE_HORIZONTAL: case NS_THEME_SCALETHUMB_HORIZONTAL: case NS_THEME_SCALE_VERTICAL: case NS_THEME_SCALETHUMB_VERTICAL: // case NS_THEME_SCALETHUMBSTART: // case NS_THEME_SCALETHUMBEND: // case NS_THEME_SCALETHUMBTICK: case NS_THEME_CHECKBOX_CONTAINER: case NS_THEME_RADIO_CONTAINER: case NS_THEME_CHECKBOX_LABEL: case NS_THEME_RADIO_LABEL: case NS_THEME_MENUBAR: case NS_THEME_MENUPOPUP: case NS_THEME_MENUITEM: case NS_THEME_MENUARROW: case NS_THEME_MENUSEPARATOR: case NS_THEME_CHECKMENUITEM: case NS_THEME_RADIOMENUITEM: case NS_THEME_SPLITTER: case NS_THEME_WINDOW: case NS_THEME_DIALOG: #ifdef MOZ_WIDGET_GTK case NS_THEME_GTK_INFO_BAR: #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; } // "Native" dropdown buttons cause padding and margin problems, but only // in HTML so allow them in XUL. return (!aFrame || IsFrameContentNodeInNamespace(aFrame, kNameSpaceID_XUL)) && !IsWidgetStyled(aPresContext, aFrame, aWidgetType); case NS_THEME_FOCUS_OUTLINE: return true; } return false; } NS_IMETHODIMP_(bool) nsNativeThemeGTK::WidgetIsContainer(uint8_t aWidgetType) { // XXXdwh At some point flesh all of this out. if (aWidgetType == NS_THEME_MENULIST_BUTTON || aWidgetType == NS_THEME_RADIO || aWidgetType == NS_THEME_RANGE_THUMB || aWidgetType == NS_THEME_CHECKBOX || aWidgetType == NS_THEME_TAB_SCROLL_ARROW_BACK || aWidgetType == NS_THEME_TAB_SCROLL_ARROW_FORWARD || aWidgetType == NS_THEME_BUTTON_ARROW_UP || aWidgetType == NS_THEME_BUTTON_ARROW_DOWN || aWidgetType == NS_THEME_BUTTON_ARROW_NEXT || aWidgetType == NS_THEME_BUTTON_ARROW_PREVIOUS) return false; return true; } bool nsNativeThemeGTK::ThemeDrawsFocusForWidget(uint8_t aWidgetType) { if (aWidgetType == NS_THEME_MENULIST || aWidgetType == NS_THEME_BUTTON || aWidgetType == NS_THEME_TREEHEADERCELL) return true; return false; } bool nsNativeThemeGTK::ThemeNeedsComboboxDropmarker() { return false; } nsITheme::Transparency nsNativeThemeGTK::GetWidgetTransparency( nsIFrame* aFrame, uint8_t aWidgetType) { switch (aWidgetType) { // These widgets always draw a default background. case NS_THEME_MENUPOPUP: case NS_THEME_WINDOW: case NS_THEME_DIALOG: return eOpaque; case NS_THEME_SCROLLBAR_VERTICAL: case NS_THEME_SCROLLBAR_HORIZONTAL: #ifdef MOZ_WIDGET_GTK // Make scrollbar tracks opaque on the window's scroll frame to prevent // leaf layers from overlapping. See bug 1179780. if (!(CheckBooleanAttr(aFrame, nsGkAtoms::root_) && aFrame->PresContext()->IsRootContentDocument() && IsFrameContentNodeInNamespace(aFrame, kNameSpaceID_XUL))) return eTransparent; #endif return eOpaque; // Tooltips use gtk_paint_flat_box() on Gtk2 // but are shaped on Gtk3 case NS_THEME_TOOLTIP: return eTransparent; } return eUnknownTransparency; }