зеркало из https://github.com/mozilla/gecko-dev.git
121 строка
5.1 KiB
C++
121 строка
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _GTK_NSNATIVETHEMEGTK_H_
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#define _GTK_NSNATIVETHEMEGTK_H_
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#include "nsITheme.h"
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#include "nsCOMPtr.h"
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#include "nsAtom.h"
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#include "Theme.h"
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#include <gtk/gtk.h>
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#include "gtkdrawing.h"
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class nsNativeThemeGTK final : public mozilla::widget::Theme {
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using Theme = mozilla::widget::Theme;
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public:
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// The nsITheme interface.
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NS_IMETHOD DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
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StyleAppearance aAppearance,
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const nsRect& aRect, const nsRect& aDirtyRect,
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DrawOverflow) override;
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bool CreateWebRenderCommandsForWidget(
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mozilla::wr::DisplayListBuilder& aBuilder,
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mozilla::wr::IpcResourceUpdateQueue& aResources,
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const mozilla::layers::StackingContextHelper& aSc,
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mozilla::layers::RenderRootStateManager* aManager, nsIFrame*,
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StyleAppearance, const nsRect& aRect) override;
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[[nodiscard]] LayoutDeviceIntMargin GetWidgetBorder(
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nsDeviceContext* aContext, nsIFrame* aFrame,
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StyleAppearance aAppearance) override;
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bool GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* aFrame,
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StyleAppearance aAppearance,
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LayoutDeviceIntMargin* aResult) override;
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bool GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame,
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StyleAppearance aAppearance,
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nsRect* aOverflowRect) override;
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// Whether we draw a non-native widget.
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//
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// We always draw scrollbars as non-native so that all of Firefox has
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// consistent scrollbar styles both in chrome and content (plus, the
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// non-native scrollbars support scrollbar-width, auto-darkening...).
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//
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// We draw other widgets as non-native when their color-scheme doesn't match
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// the current GTK theme's color-scheme. We do that because frequently
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// switching GTK themes at runtime is prohibitively expensive. In that case
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// (`BecauseColorMismatch`) we don't call into the non-native theme for sizing
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// information (GetWidgetPadding/Border and GetMinimumWidgetSize), to avoid
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// subtle sizing changes. The non-native theme can basically draw at any size,
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// so we prefer to have consistent sizing information.
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enum class NonNative { No, Always, BecauseColorMismatch };
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NonNative IsWidgetNonNative(nsIFrame*, StyleAppearance);
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NS_IMETHOD GetMinimumWidgetSize(nsPresContext* aPresContext, nsIFrame* aFrame,
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StyleAppearance aAppearance,
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mozilla::LayoutDeviceIntSize* aResult,
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bool* aIsOverridable) override;
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NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, StyleAppearance aAppearance,
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nsAtom* aAttribute, bool* aShouldRepaint,
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const nsAttrValue* aOldValue) override;
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NS_IMETHOD ThemeChanged() override;
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NS_IMETHOD_(bool)
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ThemeSupportsWidget(nsPresContext* aPresContext, nsIFrame* aFrame,
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StyleAppearance aAppearance) override;
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NS_IMETHOD_(bool) WidgetIsContainer(StyleAppearance aAppearance) override;
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bool ThemeDrawsFocusForWidget(nsIFrame*, StyleAppearance) override;
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bool ThemeNeedsComboboxDropmarker() override;
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Transparency GetWidgetTransparency(nsIFrame*, StyleAppearance) override;
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nsNativeThemeGTK();
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protected:
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virtual ~nsNativeThemeGTK();
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private:
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GtkTextDirection GetTextDirection(nsIFrame* aFrame);
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gint GetTabMarginPixels(nsIFrame* aFrame);
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bool GetGtkWidgetAndState(StyleAppearance aAppearance, nsIFrame* aFrame,
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WidgetNodeType& aGtkWidgetType,
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GtkWidgetState* aState, gint* aWidgetFlags);
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bool GetExtraSizeForWidget(nsIFrame* aFrame, StyleAppearance aAppearance,
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nsIntMargin* aExtra);
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bool IsWidgetVisible(StyleAppearance aAppearance);
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void RefreshWidgetWindow(nsIFrame* aFrame);
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WidgetNodeType NativeThemeToGtkTheme(StyleAppearance aAppearance,
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nsIFrame* aFrame);
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uint8_t mDisabledWidgetTypes
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[(static_cast<size_t>(mozilla::StyleAppearance::Count) + 7) / 8];
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uint8_t
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mSafeWidgetStates[static_cast<size_t>(mozilla::StyleAppearance::Count) *
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4]; // 32 bits per widget
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static const char* sDisabledEngines[];
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// Because moz_gtk_get_widget_border can be slow, we cache its results
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// by widget type. Each bit in mBorderCacheValid says whether the
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// corresponding entry in mBorderCache is valid.
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void GetCachedWidgetBorder(nsIFrame* aFrame, StyleAppearance aAppearance,
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GtkTextDirection aDirection,
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LayoutDeviceIntMargin* aResult);
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uint8_t mBorderCacheValid[(MOZ_GTK_WIDGET_NODE_COUNT + 7) / 8];
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LayoutDeviceIntMargin mBorderCache[MOZ_GTK_WIDGET_NODE_COUNT];
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};
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#endif
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