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/*
* Copyright (c) 2010, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PlatformSupport_h
#define PlatformSupport_h
#if ENABLE(WEB_AUDIO)
#include "AudioBus.h"
#endif
#include "FileSystem.h"
#include "ImageSource.h"
#include "LinkHash.h"
#include "PluginData.h"
#include <wtf/Forward.h>
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/Vector.h>
typedef struct NPObject NPObject;
typedef struct _NPP NPP_t;
typedef NPP_t* NPP;
#if OS(DARWIN)
typedef struct CGFont* CGFontRef;
typedef uintptr_t ATSFontContainerRef;
#ifdef __OBJC__
@class NSFont;
#else
class NSFont;
#endif
#endif // OS(DARWIN)
#if OS(WINDOWS)
typedef struct HFONT__* HFONT;
#endif
namespace WebCore {
class Color;
class Cursor;
class Document;
class Frame;
class GeolocationServiceBridge;
class GeolocationServiceChromium;
class GraphicsContext;
class Image;
class IDBFactoryBackendInterface;
class IDBKey;
class IDBKeyPath;
class IntRect;
class KURL;
class SerializedScriptValue;
class Widget;
struct Cookie;
struct FontRenderStyle;
// PlatformSupport an interface to the embedding layer that lets the embedder
// supply implementations for Platform functionality that WebCore cannot access
// directly (for example, because WebCore is in a sandbox).
class PlatformSupport {
public:
// Cookies ------------------------------------------------------------
static void setCookies(const Document*, const KURL&, const String& value);
static String cookies(const Document*, const KURL&);
static String cookieRequestHeaderFieldValue(const Document*, const KURL&);
static bool rawCookies(const Document*, const KURL&, Vector<Cookie>&);
static void deleteCookie(const Document*, const KURL&, const String& cookieName);
static bool cookiesEnabled(const Document*);
// Font ---------------------------------------------------------------
#if OS(WINDOWS)
static bool ensureFontLoaded(HFONT);
#endif
#if OS(DARWIN)
static bool loadFont(NSFont* srcFont, CGFontRef*, uint32_t* fontID);
#elif OS(UNIX)
static void getRenderStyleForStrike(const char* family, int sizeAndStyle, FontRenderStyle* result);
struct FontFamily {
String name;
bool isBold;
bool isItalic;
};
static void getFontFamilyForCharacters(const UChar*, size_t numCharacters, const char* preferredLocale, FontFamily*);
#endif
// Forms --------------------------------------------------------------
static void notifyFormStateChanged(const Document*);
// IndexedDB ----------------------------------------------------------
static PassRefPtr<IDBFactoryBackendInterface> idbFactory();
// Extracts keyPath from values and returns the corresponding keys.
static void createIDBKeysFromSerializedValuesAndKeyPath(const Vector<RefPtr<SerializedScriptValue> >& values, const IDBKeyPath&, Vector<RefPtr<IDBKey> >& keys);
// Injects key via keyPath into value. Returns true on success.
static PassRefPtr<SerializedScriptValue> injectIDBKeyIntoSerializedValue(PassRefPtr<IDBKey>, PassRefPtr<SerializedScriptValue>, const IDBKeyPath&);
// JavaScript ---------------------------------------------------------
static void notifyJSOutOfMemory(Frame*);
static bool allowScriptDespiteSettings(const KURL& documentURL);
// LayoutTestMode -----------------------------------------------------
static bool layoutTestMode();
// Plugin -------------------------------------------------------------
static bool plugins(bool refresh, Vector<PluginInfo>*);
static NPObject* pluginScriptableObject(Widget*);
static bool popupsAllowed(NPP);
// Resources ----------------------------------------------------------
#if ENABLE(WEB_AUDIO)
static PassOwnPtr<AudioBus> decodeAudioFileData(const char* data, size_t, double sampleRate);
#endif
// Screen -------------------------------------------------------------
static int screenHorizontalDPI(Widget*);
static int screenVerticalDPI(Widget*);
static int screenDepth(Widget*);
static int screenDepthPerComponent(Widget*);
static bool screenIsMonochrome(Widget*);
static IntRect screenRect(Widget*);
static IntRect screenAvailableRect(Widget*);
// Returns private and shared usage, in bytes. Private bytes is the amount of
// memory currently allocated to this process that cannot be shared. Returns
// false on platform specific error conditions.
static bool getProcessMemorySize(size_t* privateBytes, size_t* sharedBytes);
// Theming ------------------------------------------------------------
#if OS(WINDOWS)
static void paintButton(
GraphicsContext*, int part, int state, int classicState, const IntRect&);
static void paintMenuList(
GraphicsContext*, int part, int state, int classicState, const IntRect&);
static void paintScrollbarArrow(
GraphicsContext*, int state, int classicState, const IntRect&);
static void paintScrollbarThumb(
GraphicsContext*, int part, int state, int classicState, const IntRect&);
static void paintScrollbarTrack(
GraphicsContext*, int part, int state, int classicState, const IntRect&, const IntRect& alignRect);
static void paintSpinButton(
GraphicsContext*, int part, int state, int classicState, const IntRect&);
static void paintTextField(
GraphicsContext*, int part, int state, int classicState, const IntRect&, const Color&, bool fillContentArea, bool drawEdges);
static void paintTrackbar(
GraphicsContext*, int part, int state, int classicState, const IntRect&);
static void paintProgressBar(
GraphicsContext*, const IntRect& barRect, const IntRect& valueRect, bool determinate, double animatedSeconds);
#elif OS(DARWIN)
enum ThemePaintState {
StateDisabled,
StateInactive,
StateActive,
StatePressed,
};
enum ThemePaintSize {
SizeRegular,
SizeSmall,
};
enum ThemePaintScrollbarOrientation {
ScrollbarOrientationHorizontal,
ScrollbarOrientationVertical,
};
enum ThemePaintScrollbarParent {
ScrollbarParentScrollView,
ScrollbarParentRenderLayer,
};
struct ThemePaintScrollbarInfo {
ThemePaintScrollbarOrientation orientation;
ThemePaintScrollbarParent parent;
int maxValue;
int currentValue;
int visibleSize;
int totalSize;
};
static void paintScrollbarThumb(GraphicsContext*, ThemePaintState, ThemePaintSize, const IntRect&, const ThemePaintScrollbarInfo&);
#elif OS(UNIX)
// The UI part which is being accessed.
enum ThemePart {
// ScrollbarTheme parts
PartScrollbarDownArrow,
PartScrollbarLeftArrow,
PartScrollbarRightArrow,
PartScrollbarUpArrow,
PartScrollbarHorizontalThumb,
PartScrollbarVerticalThumb,
PartScrollbarHorizontalTrack,
PartScrollbarVerticalTrack,
// RenderTheme parts
PartCheckbox,
PartRadio,
PartButton,
PartTextField,
PartMenuList,
PartSliderTrack,
PartSliderThumb,
PartInnerSpinButton,
PartProgressBar
};
// The current state of the associated Part.
enum ThemePaintState {
StateDisabled,
StateHover,
StateNormal,
StatePressed
};
struct ScrollbarTrackExtraParams {
// The bounds of the entire track, as opposed to the part being painted.
int trackX;
int trackY;
int trackWidth;
int trackHeight;
};
struct ButtonExtraParams {
bool checked;
bool indeterminate; // Whether the button state is indeterminate.
bool isDefault; // Whether the button is default button.
bool hasBorder;
unsigned backgroundColor;
};
struct TextFieldExtraParams {
bool isTextArea;
bool isListbox;
unsigned backgroundColor;
};
struct MenuListExtraParams {
bool hasBorder;
bool hasBorderRadius;
int arrowX;
int arrowY;
unsigned backgroundColor;
};
struct SliderExtraParams {
bool vertical;
bool inDrag;
};
struct InnerSpinButtonExtraParams {
bool spinUp;
bool readOnly;
};
struct ProgressBarExtraParams {
bool determinate;
int valueRectX;
int valueRectY;
int valueRectWidth;
int valueRectHeight;
};
union ThemePaintExtraParams {
ScrollbarTrackExtraParams scrollbarTrack;
ButtonExtraParams button;
TextFieldExtraParams textField;
MenuListExtraParams menuList;
SliderExtraParams slider;
InnerSpinButtonExtraParams innerSpin;
ProgressBarExtraParams progressBar;
};
// Gets the size of the given theme part. For variable sized items
// like vertical scrollbar thumbs, the width will be the required width of
// the track while the height will be the minimum height.
static IntSize getThemePartSize(ThemePart);
// Paint the given the given theme part.
static void paintThemePart(GraphicsContext*, ThemePart, ThemePaintState, const IntRect&, const ThemePaintExtraParams*);
#endif
// Visited links ------------------------------------------------------
static LinkHash visitedLinkHash(const UChar* url, unsigned length);
static LinkHash visitedLinkHash(const KURL& base, const AtomicString& attributeURL);
};
} // namespace WebCore
#endif
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