/* -*- 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 "nsStyleConsts.h" #include "gtkdrawing.h" #include "ScreenHelperGTK.h" #include "WidgetUtilsGtk.h" #include "gfx2DGlue.h" #include "nsIObserverService.h" #include "nsIFrame.h" #include "nsIContent.h" #include "nsViewManager.h" #include "nsNameSpaceManager.h" #include "nsGfxCIID.h" #include "nsTransform2D.h" #include "nsXULPopupManager.h" #include "tree/nsTreeBodyFrame.h" #include "prlink.h" #include "nsGkAtoms.h" #include "nsAttrValueInlines.h" #include "mozilla/dom/HTMLInputElement.h" #include "mozilla/ClearOnShutdown.h" #include "mozilla/Services.h" #include #include #include "gfxContext.h" #include "mozilla/dom/XULButtonElement.h" #include "mozilla/gfx/BorrowedContext.h" #include "mozilla/gfx/HelpersCairo.h" #include "mozilla/gfx/PathHelpers.h" #include "mozilla/Preferences.h" #include "mozilla/PresShell.h" #include "mozilla/layers/StackingContextHelper.h" #include "mozilla/StaticPrefs_layout.h" #include "mozilla/StaticPrefs_widget.h" #include "nsWindow.h" #include "nsLayoutUtils.h" #include "Theme.h" #ifdef MOZ_X11 # ifdef CAIRO_HAS_XLIB_SURFACE # include "cairo-xlib.h" # endif #endif #include #include using namespace mozilla; using namespace mozilla::gfx; using namespace mozilla::widget; 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(nsPresContext* aPresContext) { nsCOMPtr rootWidget = aPresContext->GetRootWidget(); auto scale = rootWidget ? rootWidget->GetDefaultScale() : aPresContext->CSSToDevPixelScale(); // We prefer the root widget scale since it doesn't account for text scale // factor, this is the same scrollbars do in GTK. int monitorScale = int(round(scale.scale)); // When the layout.css.devPixelsPerPx is set the scale can be < 1, the real // monitor scale cannot go under 1. return std::max(1, monitorScale); } static inline gint GetMonitorScaleFactor(nsIFrame* aFrame) { return GetMonitorScaleFactor(aFrame->PresContext()); } nsNativeThemeGTK::nsNativeThemeGTK() : Theme(ScrollbarStyle()) { if (moz_gtk_init() != MOZ_GTK_SUCCESS) { memset(mDisabledWidgetTypes, 0xff, sizeof(mDisabledWidgetTypes)); return; } ThemeChanged(); } nsNativeThemeGTK::~nsNativeThemeGTK() { moz_gtk_shutdown(); } void nsNativeThemeGTK::RefreshWidgetWindow(nsIFrame* aFrame) { MOZ_ASSERT(aFrame); MOZ_ASSERT(aFrame->PresShell()); nsViewManager* vm = aFrame->PresShell()->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(const uint8_t* aDisabledVector, StyleAppearance aAppearance) { auto type = static_cast(aAppearance); MOZ_ASSERT(type < static_cast(StyleAppearance::Count)); return (aDisabledVector[type >> 3] & (1 << (type & 7))) != 0; } static void SetWidgetTypeDisabled(uint8_t* aDisabledVector, StyleAppearance aAppearance) { auto type = static_cast(aAppearance); MOZ_ASSERT(type < static_cast(mozilla::StyleAppearance::Count)); aDisabledVector[type >> 3] |= (1 << (type & 7)); } static inline uint16_t GetWidgetStateKey(StyleAppearance aAppearance, GtkWidgetState* aWidgetState) { return (aWidgetState->active | aWidgetState->focused << 1 | aWidgetState->inHover << 2 | aWidgetState->disabled << 3 | aWidgetState->isDefault << 4 | static_cast(aAppearance) << 5); } static bool IsWidgetStateSafe(uint8_t* aSafeVector, StyleAppearance aAppearance, GtkWidgetState* aWidgetState) { MOZ_ASSERT(static_cast(aAppearance) < static_cast(mozilla::StyleAppearance::Count)); uint16_t key = GetWidgetStateKey(aAppearance, aWidgetState); return (aSafeVector[key >> 3] & (1 << (key & 7))) != 0; } static void SetWidgetStateSafe(uint8_t* aSafeVector, StyleAppearance aAppearance, GtkWidgetState* aWidgetState) { MOZ_ASSERT(static_cast(aAppearance) < static_cast(mozilla::StyleAppearance::Count)); uint16_t key = GetWidgetStateKey(aAppearance, 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))); } bool nsNativeThemeGTK::GetGtkWidgetAndState(StyleAppearance aAppearance, nsIFrame* aFrame, WidgetNodeType& aGtkWidgetType, GtkWidgetState* aState, gint* aWidgetFlags) { if (aWidgetFlags) { *aWidgetFlags = 0; } ElementState elementState = GetContentState(aFrame, aAppearance); if (aState) { memset(aState, 0, sizeof(GtkWidgetState)); // For XUL checkboxes and radio buttons, the state of the parent // determines our state. if (aWidgetFlags) { if (elementState.HasState(ElementState::CHECKED)) { *aWidgetFlags |= MOZ_GTK_WIDGET_CHECKED; } if (elementState.HasState(ElementState::INDETERMINATE)) { *aWidgetFlags |= MOZ_GTK_WIDGET_INCONSISTENT; } } aState->disabled = elementState.HasState(ElementState::DISABLED) || IsReadOnly(aFrame); aState->active = elementState.HasState(ElementState::ACTIVE); aState->focused = elementState.HasState(ElementState::FOCUS); aState->inHover = elementState.HasState(ElementState::HOVER); aState->isDefault = IsDefaultButton(aFrame); aState->canDefault = FALSE; // XXX fix me if (aAppearance == StyleAppearance::FocusOutline) { 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 (aAppearance == StyleAppearance::Button || aAppearance == StyleAppearance::Toolbarbutton || aAppearance == StyleAppearance::Dualbutton || aAppearance == StyleAppearance::ToolbarbuttonDropdown || aAppearance == StyleAppearance::Menulist || aAppearance == StyleAppearance::MenulistButton || aAppearance == StyleAppearance::MozMenulistArrowButton) { aState->active &= aState->inHover; } else if (aAppearance == StyleAppearance::Treetwisty || aAppearance == StyleAppearance::Treetwistyopen) { nsTreeBodyFrame* treeBodyFrame = do_QueryFrame(aFrame); if (treeBodyFrame) { const mozilla::AtomArray& atoms = treeBodyFrame->GetPropertyArrayForCurrentDrawingItem(); aState->selected = atoms.Contains((nsStaticAtom*)nsGkAtoms::selected); aState->inHover = atoms.Contains((nsStaticAtom*)nsGkAtoms::hover); } } 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. aState->focused = elementState.HasState(ElementState::FOCUSRING); if (aAppearance == StyleAppearance::Radio || aAppearance == StyleAppearance::Checkbox) { // In XUL, checkboxes and radios shouldn't have focus rings, their // labels do aState->focused = FALSE; } // 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 (aAppearance == StyleAppearance::Menuitem || aAppearance == StyleAppearance::Checkmenuitem || aAppearance == StyleAppearance::Radiomenuitem || aAppearance == StyleAppearance::Menuseparator || aAppearance == StyleAppearance::Menuarrow) { auto* item = dom::XULButtonElement::FromNode(aFrame->GetContent()); if (item && item->IsOnMenuBar()) { aState->inHover = CheckBooleanAttr(aFrame, nsGkAtoms::open); } else { aState->inHover = CheckBooleanAttr(aFrame, nsGkAtoms::menuactive); } aState->active = FALSE; if (aAppearance == StyleAppearance::Checkmenuitem || aAppearance == StyleAppearance::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 (aAppearance == StyleAppearance::Button || aAppearance == StyleAppearance::Toolbarbutton || aAppearance == StyleAppearance::Dualbutton || aAppearance == StyleAppearance::ToolbarbuttonDropdown || aAppearance == StyleAppearance::Menulist || aAppearance == StyleAppearance::MenulistButton || aAppearance == StyleAppearance::MozMenulistArrowButton) { 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 ((aAppearance == StyleAppearance::MenulistButton || aAppearance == StyleAppearance::MozMenulistArrowButton) && aWidgetFlags) { *aWidgetFlags = CheckBooleanAttr(aFrame, nsGkAtoms::parentfocused); } } if (aAppearance == StyleAppearance::MozWindowTitlebar || aAppearance == StyleAppearance::MozWindowTitlebarMaximized || aAppearance == StyleAppearance::MozWindowButtonClose || aAppearance == StyleAppearance::MozWindowButtonMinimize || aAppearance == StyleAppearance::MozWindowButtonMaximize || aAppearance == StyleAppearance::MozWindowButtonRestore) { aState->backdrop = !nsWindow::GetTopLevelWindowActiveState(aFrame); } } switch (aAppearance) { case StyleAppearance::Button: if (aWidgetFlags) *aWidgetFlags = GTK_RELIEF_NORMAL; aGtkWidgetType = MOZ_GTK_BUTTON; break; case StyleAppearance::Toolbarbutton: case StyleAppearance::Dualbutton: if (aWidgetFlags) *aWidgetFlags = GTK_RELIEF_NONE; aGtkWidgetType = MOZ_GTK_TOOLBAR_BUTTON; break; case StyleAppearance::FocusOutline: aGtkWidgetType = MOZ_GTK_ENTRY; break; case StyleAppearance::Checkbox: case StyleAppearance::Radio: aGtkWidgetType = (aAppearance == StyleAppearance::Radio) ? MOZ_GTK_RADIOBUTTON : MOZ_GTK_CHECKBUTTON; break; case StyleAppearance::Spinner: aGtkWidgetType = MOZ_GTK_SPINBUTTON; break; case StyleAppearance::SpinnerUpbutton: aGtkWidgetType = MOZ_GTK_SPINBUTTON_UP; break; case StyleAppearance::SpinnerDownbutton: aGtkWidgetType = MOZ_GTK_SPINBUTTON_DOWN; break; case StyleAppearance::SpinnerTextfield: aGtkWidgetType = MOZ_GTK_SPINBUTTON_ENTRY; break; case StyleAppearance::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 StyleAppearance::RangeThumb: { 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 StyleAppearance::Separator: aGtkWidgetType = MOZ_GTK_TOOLBAR_SEPARATOR; break; case StyleAppearance::Toolbargripper: aGtkWidgetType = MOZ_GTK_GRIPPER; break; case StyleAppearance::Resizer: aGtkWidgetType = MOZ_GTK_RESIZER; break; case StyleAppearance::NumberInput: case StyleAppearance::Textfield: aGtkWidgetType = MOZ_GTK_ENTRY; break; case StyleAppearance::Textarea: aGtkWidgetType = MOZ_GTK_TEXT_VIEW; break; case StyleAppearance::Listbox: case StyleAppearance::Treeview: aGtkWidgetType = MOZ_GTK_TREEVIEW; break; case StyleAppearance::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 StyleAppearance::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 StyleAppearance::Treetwisty: aGtkWidgetType = MOZ_GTK_TREEVIEW_EXPANDER; if (aWidgetFlags) *aWidgetFlags = GTK_EXPANDER_COLLAPSED; break; case StyleAppearance::Treetwistyopen: aGtkWidgetType = MOZ_GTK_TREEVIEW_EXPANDER; if (aWidgetFlags) *aWidgetFlags = GTK_EXPANDER_EXPANDED; break; case StyleAppearance::MenulistButton: case StyleAppearance::Menulist: aGtkWidgetType = MOZ_GTK_DROPDOWN; if (aWidgetFlags) *aWidgetFlags = IsFrameContentNodeInNamespace(aFrame, kNameSpaceID_XHTML); break; case StyleAppearance::MenulistText: return false; // nothing to do, but prevents the bg from being drawn case StyleAppearance::MozMenulistArrowButton: aGtkWidgetType = MOZ_GTK_DROPDOWN_ARROW; break; case StyleAppearance::ToolbarbuttonDropdown: case StyleAppearance::ButtonArrowDown: case StyleAppearance::ButtonArrowUp: case StyleAppearance::ButtonArrowNext: case StyleAppearance::ButtonArrowPrevious: aGtkWidgetType = MOZ_GTK_TOOLBARBUTTON_ARROW; if (aWidgetFlags) { *aWidgetFlags = GTK_ARROW_DOWN; if (aAppearance == StyleAppearance::ButtonArrowUp) *aWidgetFlags = GTK_ARROW_UP; else if (aAppearance == StyleAppearance::ButtonArrowNext) *aWidgetFlags = GTK_ARROW_RIGHT; else if (aAppearance == StyleAppearance::ButtonArrowPrevious) *aWidgetFlags = GTK_ARROW_LEFT; } break; case StyleAppearance::CheckboxContainer: aGtkWidgetType = MOZ_GTK_CHECKBUTTON_CONTAINER; break; case StyleAppearance::RadioContainer: aGtkWidgetType = MOZ_GTK_RADIOBUTTON_CONTAINER; break; case StyleAppearance::CheckboxLabel: aGtkWidgetType = MOZ_GTK_CHECKBUTTON_LABEL; break; case StyleAppearance::RadioLabel: aGtkWidgetType = MOZ_GTK_RADIOBUTTON_LABEL; break; case StyleAppearance::Toolbar: aGtkWidgetType = MOZ_GTK_TOOLBAR; break; case StyleAppearance::Tooltip: aGtkWidgetType = MOZ_GTK_TOOLTIP; break; case StyleAppearance::Statusbarpanel: case StyleAppearance::Resizerpanel: aGtkWidgetType = MOZ_GTK_FRAME; break; case StyleAppearance::ProgressBar: aGtkWidgetType = MOZ_GTK_PROGRESSBAR; break; case StyleAppearance::Progresschunk: { nsIFrame* stateFrame = aFrame->GetParent(); ElementState elementState = GetContentState(stateFrame, aAppearance); aGtkWidgetType = elementState.HasState(ElementState::INDETERMINATE) ? IsVerticalProgress(stateFrame) ? MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE : MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE : MOZ_GTK_PROGRESS_CHUNK; } break; case StyleAppearance::TabScrollArrowBack: case StyleAppearance::TabScrollArrowForward: if (aWidgetFlags) *aWidgetFlags = aAppearance == StyleAppearance::TabScrollArrowBack ? GTK_ARROW_LEFT : GTK_ARROW_RIGHT; aGtkWidgetType = MOZ_GTK_TAB_SCROLLARROW; break; case StyleAppearance::Tabpanels: aGtkWidgetType = MOZ_GTK_TABPANELS; break; case StyleAppearance::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 StyleAppearance::Splitter: if (IsHorizontal(aFrame)) aGtkWidgetType = MOZ_GTK_SPLITTER_VERTICAL; else aGtkWidgetType = MOZ_GTK_SPLITTER_HORIZONTAL; break; case StyleAppearance::Menubar: aGtkWidgetType = MOZ_GTK_MENUBAR; break; case StyleAppearance::Menuitem: { auto* item = dom::XULButtonElement::FromNode(aFrame->GetContent()); if (item && item->IsOnMenuBar()) { aGtkWidgetType = MOZ_GTK_MENUBARITEM; break; } } aGtkWidgetType = MOZ_GTK_MENUITEM; break; case StyleAppearance::Menuseparator: aGtkWidgetType = MOZ_GTK_MENUSEPARATOR; break; case StyleAppearance::Menuarrow: aGtkWidgetType = MOZ_GTK_MENUARROW; break; case StyleAppearance::Checkmenuitem: aGtkWidgetType = MOZ_GTK_CHECKMENUITEM; break; case StyleAppearance::Radiomenuitem: aGtkWidgetType = MOZ_GTK_RADIOMENUITEM; break; case StyleAppearance::MozWindowTitlebar: aGtkWidgetType = MOZ_GTK_HEADER_BAR; break; case StyleAppearance::MozWindowTitlebarMaximized: aGtkWidgetType = MOZ_GTK_HEADER_BAR_MAXIMIZED; break; case StyleAppearance::MozWindowButtonBox: aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_BOX; break; case StyleAppearance::MozWindowButtonClose: aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_CLOSE; break; case StyleAppearance::MozWindowButtonMinimize: aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE; break; case StyleAppearance::MozWindowButtonMaximize: aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE; break; case StyleAppearance::MozWindowButtonRestore: aGtkWidgetType = MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE_RESTORE; break; default: return false; } return true; } class SystemCairoClipper : public ClipExporter { public: explicit SystemCairoClipper(cairo_t* aContext, gint aScaleFactor = 1) : mContext(aContext), mScaleFactor(aScaleFactor) {} void BeginClip(const Matrix& aTransform) override { cairo_matrix_t mat; GfxMatrixToCairoMatrix(aTransform, mat); // We also need to remove the scale factor effect from the matrix mat.y0 = mat.y0 / mScaleFactor; mat.x0 = mat.x0 / mScaleFactor; cairo_set_matrix(mContext, &mat); cairo_new_path(mContext); } void MoveTo(const Point& aPoint) override { cairo_move_to(mContext, aPoint.x / mScaleFactor, aPoint.y / mScaleFactor); mBeginPoint = aPoint; mCurrentPoint = aPoint; } void LineTo(const Point& aPoint) override { cairo_line_to(mContext, aPoint.x / mScaleFactor, aPoint.y / mScaleFactor); mCurrentPoint = aPoint; } void BezierTo(const Point& aCP1, const Point& aCP2, const Point& aCP3) override { cairo_curve_to(mContext, aCP1.x / mScaleFactor, aCP1.y / mScaleFactor, aCP2.x / mScaleFactor, aCP2.y / mScaleFactor, aCP3.x / mScaleFactor, aCP3.y / mScaleFactor); 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 / mScaleFactor, CP1.y / mScaleFactor, CP2.x / mScaleFactor, CP2.y / mScaleFactor, CP3.x / mScaleFactor, CP3.y / mScaleFactor); 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); mCurrentPoint = mBeginPoint; } void EndClip() override { cairo_clip(mContext); } private: cairo_t* mContext; gint mScaleFactor; }; 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) { static auto sCairoSurfaceSetDeviceScalePtr = (void (*)(cairo_surface_t*, double, double))dlsym( RTLD_DEFAULT, "cairo_surface_set_device_scale"); const bool useHiDPIWidgets = aScaleFactor != 1 && sCairoSurfaceSetDeviceScalePtr; Point drawOffsetScaled; Point drawOffsetOriginal; Matrix transform; if (!aSnapped) { // If we are not snapped, we depend on the DT for translation. drawOffsetOriginal = aDrawOrigin; drawOffsetScaled = useHiDPIWidgets ? drawOffsetOriginal / aScaleFactor : drawOffsetOriginal; transform = aDrawTarget->GetTransform().PreTranslate(drawOffsetScaled); } else { // Otherwise, we only need to take the device offset into account. drawOffsetOriginal = aDrawOrigin - aContext->GetDeviceOffset(); drawOffsetScaled = useHiDPIWidgets ? drawOffsetOriginal / aScaleFactor : drawOffsetOriginal; transform = Matrix::Translation(drawOffsetScaled); } if (!useHiDPIWidgets && 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); // 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 (GdkIsX11Display()) { // 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 = 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 (useHiDPIWidgets) { sCairoSurfaceSetDeviceScalePtr(surf, aScaleFactor, aScaleFactor); } 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, useHiDPIWidgets ? aScaleFactor : 1); 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) { if (useHiDPIWidgets) { sCairoSurfaceSetDeviceScalePtr(surf, aScaleFactor, aScaleFactor); } else { 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 ? drawOffsetOriginal - aDrawTarget->GetTransform().GetTranslation() : drawOffsetOriginal, Size(aDrawSize)), Rect(0, 0, aDrawSize.width, aDrawSize.height)); cairo_destroy(cr); } if (surf) { cairo_surface_destroy(surf); } } } } bool nsNativeThemeGTK::GetExtraSizeForWidget(nsIFrame* aFrame, StyleAppearance aAppearance, 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 (aAppearance) { case StyleAppearance::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 StyleAppearance::FocusOutline: { moz_gtk_get_focus_outline_size(&aExtra->left, &aExtra->top); aExtra->right = aExtra->left; aExtra->bottom = aExtra->top; break; } case StyleAppearance::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; } bool nsNativeThemeGTK::IsWidgetVisible(StyleAppearance aAppearance) { switch (aAppearance) { case StyleAppearance::MozWindowButtonBox: return false; default: break; } return true; } NS_IMETHODIMP nsNativeThemeGTK::DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance, const nsRect& aRect, const nsRect& aDirtyRect, DrawOverflow aDrawOverflow) { if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { return Theme::DrawWidgetBackground(aContext, aFrame, aAppearance, aRect, aDirtyRect, aDrawOverflow); } GtkWidgetState state; WidgetNodeType gtkWidgetType; GtkTextDirection direction = GetTextDirection(aFrame); gint flags; if (!IsWidgetVisible(aAppearance) || !GetGtkWidgetAndState(aAppearance, 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. // We prioritize the size when snapping in order to avoid distorting widgets // that should be square, which can occur if edges are snapped independently. bool snapped = ctx->UserToDevicePixelSnapped( rect, gfxContext::SnapOption::PrioritizeSize); 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, aAppearance, &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, aAppearance), "Trying to render an unsafe widget!"); bool safeState = IsWidgetStateSafe(mSafeWidgetStates, aAppearance, &state); if (!safeState) { gLastGdkError = 0; gdk_error_trap_push(); } Transparency transparency = GetWidgetTransparency(aFrame, aAppearance); // 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 (GdkIsX11Display()) { 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", static_cast(aAppearance), gLastGdkError, state.active, state.focused, state.inHover, state.disabled); #endif NS_WARNING("GTK theme failed; disabling unsafe widget"); SetWidgetTypeDisabled(mDisabledWidgetTypes, aAppearance); // 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, aAppearance, &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::RenderRootStateManager* aManager, nsIFrame* aFrame, StyleAppearance aAppearance, const nsRect& aRect) { if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { return Theme::CreateWebRenderCommandsForWidget( aBuilder, aResources, aSc, aManager, aFrame, aAppearance, aRect); } return false; } WidgetNodeType nsNativeThemeGTK::NativeThemeToGtkTheme( StyleAppearance aAppearance, nsIFrame* aFrame) { WidgetNodeType gtkWidgetType; gint unusedFlags; if (!GetGtkWidgetAndState(aAppearance, aFrame, gtkWidgetType, nullptr, &unusedFlags)) { MOZ_ASSERT_UNREACHABLE("Unknown native widget to gtk widget mapping"); return MOZ_GTK_WINDOW; } return gtkWidgetType; } static void FixupForVerticalWritingMode(WritingMode aWritingMode, LayoutDeviceIntMargin* aResult) { if (aWritingMode.IsVertical()) { bool rtl = aWritingMode.IsBidiRTL(); LogicalMargin logical(aWritingMode, aResult->top, rtl ? aResult->left : aResult->right, aResult->bottom, rtl ? aResult->right : aResult->left); nsMargin physical = logical.GetPhysicalMargin(aWritingMode); aResult->top = physical.top; aResult->right = physical.right; aResult->bottom = physical.bottom; aResult->left = physical.left; } } void nsNativeThemeGTK::GetCachedWidgetBorder(nsIFrame* aFrame, StyleAppearance aAppearance, GtkTextDirection aDirection, LayoutDeviceIntMargin* aResult) { aResult->SizeTo(0, 0, 0, 0); WidgetNodeType gtkWidgetType; gint unusedFlags; if (GetGtkWidgetAndState(aAppearance, 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 (gtkWidgetType != MOZ_GTK_DROPDOWN) { // depends on aDirection mBorderCacheValid[cacheIndex] |= cacheBit; mBorderCache[gtkWidgetType] = *aResult; } } } FixupForVerticalWritingMode(aFrame->GetWritingMode(), aResult); } LayoutDeviceIntMargin nsNativeThemeGTK::GetWidgetBorder( nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance) { LayoutDeviceIntMargin result; GtkTextDirection direction = GetTextDirection(aFrame); switch (aAppearance) { case StyleAppearance::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 StyleAppearance::Menuitem: case StyleAppearance::Checkmenuitem: case StyleAppearance::Radiomenuitem: // We use GetWidgetPadding for these. break; case StyleAppearance::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 StyleAppearance::Tab: { WidgetNodeType gtkWidgetType; gint flags; if (!GetGtkWidgetAndState(aAppearance, aFrame, gtkWidgetType, nullptr, &flags)) { return result; } moz_gtk_get_tab_border(&result.left, &result.top, &result.right, &result.bottom, direction, (GtkTabFlags)flags, gtkWidgetType); } break; default: { GetCachedWidgetBorder(aFrame, aAppearance, direction, &result); } } gint scale = GetMonitorScaleFactor(aFrame); result.top *= scale; result.right *= scale; result.bottom *= scale; result.left *= scale; return result; } bool nsNativeThemeGTK::GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance, LayoutDeviceIntMargin* aResult) { switch (aAppearance) { case StyleAppearance::Toolbarbutton: case StyleAppearance::Tooltip: case StyleAppearance::MozWindowButtonBox: case StyleAppearance::MozWindowButtonClose: case StyleAppearance::MozWindowButtonMinimize: case StyleAppearance::MozWindowButtonMaximize: case StyleAppearance::MozWindowButtonRestore: case StyleAppearance::Dualbutton: case StyleAppearance::TabScrollArrowBack: case StyleAppearance::TabScrollArrowForward: case StyleAppearance::MozMenulistArrowButton: case StyleAppearance::ToolbarbuttonDropdown: case StyleAppearance::ButtonArrowUp: case StyleAppearance::ButtonArrowDown: case StyleAppearance::ButtonArrowNext: case StyleAppearance::ButtonArrowPrevious: case StyleAppearance::RangeThumb: // Radios and checkboxes return a fixed size in GetMinimumWidgetSize // and have a meaningful baseline, so they can't have // author-specified padding. case StyleAppearance::Checkbox: case StyleAppearance::Radio: aResult->SizeTo(0, 0, 0, 0); return true; case StyleAppearance::Menuitem: case StyleAppearance::Checkmenuitem: case StyleAppearance::Radiomenuitem: { GetCachedWidgetBorder(aFrame, aAppearance, GetTextDirection(aFrame), aResult); gint horizontal_padding = 0; if (aAppearance == StyleAppearance::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; } default: break; } return false; } bool nsNativeThemeGTK::GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame, StyleAppearance aAppearance, nsRect* aOverflowRect) { if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { return Theme::GetWidgetOverflow(aContext, aFrame, aAppearance, aOverflowRect); } nsIntMargin extraSize; if (!GetExtraSizeForWidget(aFrame, aAppearance, &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; } auto nsNativeThemeGTK::IsWidgetNonNative(nsIFrame* aFrame, StyleAppearance aAppearance) -> NonNative { if (IsWidgetScrollbarPart(aAppearance)) { return NonNative::Always; } // We can't draw light widgets if the current GTK theme is dark or vice versa. if (Theme::ThemeSupportsWidget(aFrame->PresContext(), aFrame, aAppearance) && LookAndFeel::ColorSchemeForFrame(aFrame) != LookAndFeel::ColorSchemeForChrome()) { return NonNative::BecauseColorMismatch; } return NonNative::No; } LayoutDeviceIntSize nsNativeThemeGTK::GetMinimumWidgetSize( nsPresContext* aPresContext, nsIFrame* aFrame, StyleAppearance aAppearance) { if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) { return Theme::GetMinimumWidgetSize(aPresContext, aFrame, aAppearance); } LayoutDeviceIntSize result; switch (aAppearance) { case StyleAppearance::Splitter: { if (IsHorizontal(aFrame)) { moz_gtk_splitter_get_metrics(GTK_ORIENTATION_HORIZONTAL, &result.width); } else { moz_gtk_splitter_get_metrics(GTK_ORIENTATION_VERTICAL, &result.height); } } break; case StyleAppearance::RangeThumb: { if (IsRangeHorizontal(aFrame)) { moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_HORIZONTAL, &result.width, &result.height); } else { moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_VERTICAL, &result.width, &result.width); } } break; case StyleAppearance::TabScrollArrowBack: case StyleAppearance::TabScrollArrowForward: { moz_gtk_get_tab_scroll_arrow_size(&result.width, &result.height); } break; case StyleAppearance::MozMenulistArrowButton: { moz_gtk_get_combo_box_entry_button_size(&result.width, &result.height); } break; case StyleAppearance::Menuseparator: { moz_gtk_get_menu_separator_height(&result.height); } break; case StyleAppearance::Checkbox: case StyleAppearance::Radio: { const ToggleGTKMetrics* metrics = GetToggleMetrics( aAppearance == StyleAppearance::Radio ? MOZ_GTK_RADIOBUTTON : MOZ_GTK_CHECKBUTTON); result.width = metrics->minSizeWithBorder.width; result.height = metrics->minSizeWithBorder.height; } break; case StyleAppearance::ToolbarbuttonDropdown: case StyleAppearance::ButtonArrowUp: case StyleAppearance::ButtonArrowDown: case StyleAppearance::ButtonArrowNext: case StyleAppearance::ButtonArrowPrevious: { moz_gtk_get_arrow_size(MOZ_GTK_TOOLBARBUTTON_ARROW, &result.width, &result.height); } break; case StyleAppearance::MozWindowButtonClose: { const ToolbarButtonGTKMetrics* metrics = GetToolbarButtonMetrics(MOZ_GTK_HEADER_BAR_BUTTON_CLOSE); result.width = metrics->minSizeWithBorderMargin.width; result.height = metrics->minSizeWithBorderMargin.height; break; } case StyleAppearance::MozWindowButtonMinimize: { const ToolbarButtonGTKMetrics* metrics = GetToolbarButtonMetrics(MOZ_GTK_HEADER_BAR_BUTTON_MINIMIZE); result.width = metrics->minSizeWithBorderMargin.width; result.height = metrics->minSizeWithBorderMargin.height; break; } case StyleAppearance::MozWindowButtonMaximize: case StyleAppearance::MozWindowButtonRestore: { const ToolbarButtonGTKMetrics* metrics = GetToolbarButtonMetrics(MOZ_GTK_HEADER_BAR_BUTTON_MAXIMIZE); result.width = metrics->minSizeWithBorderMargin.width; result.height = metrics->minSizeWithBorderMargin.height; break; } case StyleAppearance::CheckboxContainer: case StyleAppearance::RadioContainer: case StyleAppearance::CheckboxLabel: case StyleAppearance::RadioLabel: case StyleAppearance::Button: case StyleAppearance::Menulist: case StyleAppearance::MenulistButton: case StyleAppearance::Toolbarbutton: case StyleAppearance::Treeheadercell: { if (aAppearance == StyleAppearance::Menulist || aAppearance == StyleAppearance::MenulistButton) { // Include the arrow size. moz_gtk_get_arrow_size(MOZ_GTK_DROPDOWN, &result.width, &result.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. LayoutDeviceIntMargin border; GetCachedWidgetBorder(aFrame, aAppearance, GetTextDirection(aFrame), &border); result.width += border.LeftRight(); result.height += border.TopBottom(); } break; case StyleAppearance::NumberInput: case StyleAppearance::Textfield: { gint contentHeight = 0; gint borderPaddingHeight = 0; moz_gtk_get_entry_min_height(&contentHeight, &borderPaddingHeight); // Scale the min content height proportionately with the font-size if it's // smaller than the default one. This prevents from keeping a ridiculously large size, for // example. const gfxFloat fieldFontSizeInCSSPixels = [] { gfxFontStyle fieldFontStyle; nsAutoString unusedFontName; DebugOnly result = LookAndFeel::GetFont( LookAndFeel::FontID::MozField, unusedFontName, fieldFontStyle); MOZ_ASSERT(result, "GTK look and feel supports the field font"); // NOTE: GetFont returns font sizes in CSS pixels, and we want just // that. return fieldFontStyle.size; }(); const gfxFloat fontSize = aFrame->StyleFont()->mFont.size.ToCSSPixels(); if (fieldFontSizeInCSSPixels > fontSize) { contentHeight = std::round(contentHeight * fontSize / fieldFontSizeInCSSPixels); } gint height = contentHeight + borderPaddingHeight; if (aFrame->GetWritingMode().IsVertical()) { result.width = height; } else { result.height = height; } } break; case StyleAppearance::Separator: { moz_gtk_get_toolbar_separator_width(&result.width); } break; case StyleAppearance::Spinner: // hard code these sizes result.width = 14; result.height = 26; break; case StyleAppearance::Treeheadersortarrow: case StyleAppearance::SpinnerUpbutton: case StyleAppearance::SpinnerDownbutton: // hard code these sizes result.width = 14; result.height = 13; break; case StyleAppearance::Resizer: // same as Windows to make our lives easier result.width = result.height = 15; break; case StyleAppearance::Treetwisty: case StyleAppearance::Treetwistyopen: { gint expander_size; moz_gtk_get_treeview_expander_size(&expander_size); result.width = result.height = expander_size; } break; default: break; } return result * GetMonitorScaleFactor(aFrame); } NS_IMETHODIMP nsNativeThemeGTK::WidgetStateChanged(nsIFrame* aFrame, StyleAppearance aAppearance, nsAtom* aAttribute, bool* aShouldRepaint, const nsAttrValue* aOldValue) { *aShouldRepaint = false; if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { return Theme::WidgetStateChanged(aFrame, aAppearance, aAttribute, aShouldRepaint, aOldValue); } // Some widget types just never change state. if (aAppearance == StyleAppearance::Toolbox || aAppearance == StyleAppearance::Toolbar || aAppearance == StyleAppearance::Statusbar || aAppearance == StyleAppearance::Statusbarpanel || aAppearance == StyleAppearance::Resizerpanel || aAppearance == StyleAppearance::Progresschunk || aAppearance == StyleAppearance::ProgressBar || aAppearance == StyleAppearance::Menubar || aAppearance == StyleAppearance::Tooltip || aAppearance == StyleAppearance::Menuseparator) { return NS_OK; } if (aAppearance == StyleAppearance::MozWindowTitlebar || aAppearance == StyleAppearance::MozWindowTitlebarMaximized || aAppearance == StyleAppearance::MozWindowButtonClose || aAppearance == StyleAppearance::MozWindowButtonMinimize || aAppearance == StyleAppearance::MozWindowButtonMaximize || aAppearance == StyleAppearance::MozWindowButtonRestore) { *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; return NS_OK; } // 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; } 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, StyleAppearance aAppearance) { if (IsWidgetTypeDisabled(mDisabledWidgetTypes, aAppearance)) { return false; } if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) { return Theme::ThemeSupportsWidget(aPresContext, aFrame, aAppearance); } switch (aAppearance) { // Combobox dropdowns don't support native theming in vertical mode. case StyleAppearance::Menulist: case StyleAppearance::MenulistButton: case StyleAppearance::MenulistText: if (aFrame && aFrame->GetWritingMode().IsVertical()) { return false; } [[fallthrough]]; case StyleAppearance::Button: case StyleAppearance::Radio: case StyleAppearance::Checkbox: case StyleAppearance::Toolbox: // N/A case StyleAppearance::Toolbar: case StyleAppearance::Toolbarbutton: case StyleAppearance::Dualbutton: // so we can override the border with 0 case StyleAppearance::ToolbarbuttonDropdown: case StyleAppearance::ButtonArrowUp: case StyleAppearance::ButtonArrowDown: case StyleAppearance::ButtonArrowNext: case StyleAppearance::ButtonArrowPrevious: case StyleAppearance::Separator: case StyleAppearance::Toolbargripper: case StyleAppearance::Statusbar: case StyleAppearance::Statusbarpanel: case StyleAppearance::Resizerpanel: case StyleAppearance::Resizer: case StyleAppearance::Listbox: case StyleAppearance::Treeview: // case StyleAppearance::Treeitem: case StyleAppearance::Treetwisty: // case StyleAppearance::Treeline: // case StyleAppearance::Treeheader: case StyleAppearance::Treeheadercell: case StyleAppearance::Treeheadersortarrow: case StyleAppearance::Treetwistyopen: case StyleAppearance::ProgressBar: case StyleAppearance::Progresschunk: case StyleAppearance::Tab: // case StyleAppearance::Tabpanel: case StyleAppearance::Tabpanels: case StyleAppearance::TabScrollArrowBack: case StyleAppearance::TabScrollArrowForward: case StyleAppearance::Tooltip: case StyleAppearance::Spinner: case StyleAppearance::SpinnerUpbutton: case StyleAppearance::SpinnerDownbutton: case StyleAppearance::SpinnerTextfield: case StyleAppearance::NumberInput: case StyleAppearance::Textfield: case StyleAppearance::Textarea: case StyleAppearance::Range: case StyleAppearance::RangeThumb: case StyleAppearance::CheckboxContainer: case StyleAppearance::RadioContainer: case StyleAppearance::CheckboxLabel: case StyleAppearance::RadioLabel: case StyleAppearance::Menubar: case StyleAppearance::Menuitem: case StyleAppearance::Menuarrow: case StyleAppearance::Menuseparator: case StyleAppearance::Checkmenuitem: case StyleAppearance::Radiomenuitem: case StyleAppearance::Splitter: case StyleAppearance::MozWindowButtonBox: case StyleAppearance::MozWindowButtonClose: case StyleAppearance::MozWindowButtonMinimize: case StyleAppearance::MozWindowButtonMaximize: case StyleAppearance::MozWindowButtonRestore: case StyleAppearance::MozWindowTitlebar: case StyleAppearance::MozWindowTitlebarMaximized: return !IsWidgetStyled(aPresContext, aFrame, aAppearance); case StyleAppearance::MozMenulistArrowButton: 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, aAppearance); case StyleAppearance::FocusOutline: return true; default: break; } return false; } NS_IMETHODIMP_(bool) nsNativeThemeGTK::WidgetIsContainer(StyleAppearance aAppearance) { // XXXdwh At some point flesh all of this out. if (aAppearance == StyleAppearance::MozMenulistArrowButton || aAppearance == StyleAppearance::Radio || aAppearance == StyleAppearance::RangeThumb || aAppearance == StyleAppearance::Checkbox || aAppearance == StyleAppearance::TabScrollArrowBack || aAppearance == StyleAppearance::TabScrollArrowForward || aAppearance == StyleAppearance::ButtonArrowUp || aAppearance == StyleAppearance::ButtonArrowDown || aAppearance == StyleAppearance::ButtonArrowNext || aAppearance == StyleAppearance::ButtonArrowPrevious) return false; return true; } bool nsNativeThemeGTK::ThemeDrawsFocusForWidget(nsIFrame* aFrame, StyleAppearance aAppearance) { if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { return Theme::ThemeDrawsFocusForWidget(aFrame, aAppearance); } switch (aAppearance) { case StyleAppearance::Button: case StyleAppearance::Menulist: case StyleAppearance::MenulistButton: case StyleAppearance::Textarea: case StyleAppearance::Textfield: case StyleAppearance::Treeheadercell: case StyleAppearance::NumberInput: return true; default: return false; } } bool nsNativeThemeGTK::ThemeNeedsComboboxDropmarker() { return false; } nsITheme::Transparency nsNativeThemeGTK::GetWidgetTransparency( nsIFrame* aFrame, StyleAppearance aAppearance) { if (IsWidgetNonNative(aFrame, aAppearance) != NonNative::No) { return Theme::GetWidgetTransparency(aFrame, aAppearance); } switch (aAppearance) { // Tooltips use gtk_paint_flat_box() on Gtk2 // but are shaped on Gtk3 case StyleAppearance::Tooltip: return eTransparent; default: return eUnknownTransparency; } } already_AddRefed do_CreateNativeThemeDoNotUseDirectly() { if (gfxPlatform::IsHeadless()) { return do_AddRef(new Theme(Theme::ScrollbarStyle())); } return do_AddRef(new nsNativeThemeGTK()); }