gecko-dev/widget/gtk/WidgetStyleCache.h

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

#ifndef WidgetStyleCache_h
#define WidgetStyleCache_h

#include <gtk/gtk.h>
#include "gtkdrawing.h"

GtkWidget* GetWidget(WidgetNodeType aNodeType);

cairo_surface_t* GetWidgetIconSurface(GtkWidget* aWidgetIcon, int aScale);

/*
 * Return a new style context based on aWidget, as a child of aParentStyle.
 * If aWidget still has a floating reference, then it is sunk and released.
 */
GtkStyleContext* CreateStyleForWidget(GtkWidget* aWidget,
                                      GtkStyleContext* aParentStyle);

GtkStyleContext* CreateCSSNode(const char* aName, GtkStyleContext* aParentStyle,
                               GType aType = G_TYPE_NONE);

/*
 * Returns a pointer to a style context for the specified node and state.
 * aStateFlags is applied only to last widget in css style path,
 * for instance GetStyleContext(MOZ_GTK_BUTTON, .., GTK_STATE_FLAG_HOVER)
 * you get "window button:hover" css selector.
 * If you want aStateFlags applied to all path elements use
 * CreateStyleContextWithStates().
 *
 * The context is owned by WidgetStyleCache. Do not unref.
 */
GtkStyleContext* GetStyleContext(
    WidgetNodeType aNodeType, int aScale = 1,
    GtkTextDirection aDirection = GTK_TEXT_DIR_NONE,
    GtkStateFlags aStateFlags = GTK_STATE_FLAG_NORMAL);

/*
 * Returns a pointer to a style context for the specified node
 * and state applied to all elements at widget style path.
 *
 * The context is owned by caller and must be released by g_object_unref().
 */
GtkStyleContext* CreateStyleContextWithStates(
    WidgetNodeType aNodeType, int aScale = 1,
    GtkTextDirection aDirection = GTK_TEXT_DIR_NONE,
    GtkStateFlags aStateFlags = GTK_STATE_FLAG_NORMAL);

void ResetWidgetCache(void);

void StyleContextSetScale(GtkStyleContext* style, gint aScaleFactor);

#endif  // WidgetStyleCache_h