| /* |
| * Copyright (C) 2007, 2008 Apple 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 CSSFontFace_h |
| #define CSSFontFace_h |
| |
| #include "CSSFontFaceRule.h" |
| #include "CSSFontFaceSource.h" |
| #include "TextFlags.h" |
| #include <memory> |
| #include <wtf/Forward.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/PassRefPtr.h> |
| #include <wtf/RefCounted.h> |
| #include <wtf/Vector.h> |
| |
| namespace WebCore { |
| |
| class CSSSegmentedFontFace; |
| class FontDescription; |
| class Font; |
| |
| class CSSFontFace : public RefCounted<CSSFontFace> { |
| public: |
| static Ref<CSSFontFace> create(FontTraitsMask traitsMask, RefPtr<CSSFontFaceRule>&& rule, bool isLocalFallback = false) { return adoptRef(*new CSSFontFace(traitsMask, WTF::move(rule), isLocalFallback)); } |
| |
| FontTraitsMask traitsMask() const { return m_traitsMask; } |
| |
| struct UnicodeRange; |
| |
| void addRange(UChar32 from, UChar32 to) { m_ranges.append(UnicodeRange(from, to)); } |
| const Vector<UnicodeRange>& ranges() const { return m_ranges; } |
| |
| void addedToSegmentedFontFace(CSSSegmentedFontFace*); |
| void removedFromSegmentedFontFace(CSSSegmentedFontFace*); |
| |
| bool isLoaded() const; |
| bool isValid() const; |
| |
| bool isLocalFallback() const { return m_isLocalFallback; } |
| |
| void addSource(std::unique_ptr<CSSFontFaceSource>); |
| |
| void fontLoaded(CSSFontFaceSource*); |
| |
| RefPtr<Font> font(const FontDescription&, bool syntheticBold, bool syntheticItalic); |
| |
| struct UnicodeRange { |
| UnicodeRange(UChar32 from, UChar32 to) |
| : m_from(from) |
| , m_to(to) |
| { |
| } |
| |
| UChar32 from() const { return m_from; } |
| UChar32 to() const { return m_to; } |
| |
| private: |
| UChar32 m_from; |
| UChar32 m_to; |
| }; |
| |
| #if ENABLE(SVG_FONTS) |
| bool hasSVGFontFaceSource() const; |
| #endif |
| |
| #if ENABLE(FONT_LOAD_EVENTS) |
| enum LoadState { NotLoaded, Loading, Loaded, Error }; |
| LoadState loadState() const { return m_loadState; } |
| #endif |
| |
| private: |
| CSSFontFace(FontTraitsMask traitsMask, RefPtr<CSSFontFaceRule>&& rule, bool isLocalFallback) |
| : m_traitsMask(traitsMask) |
| , m_activeSource(0) |
| , m_isLocalFallback(isLocalFallback) |
| #if ENABLE(FONT_LOAD_EVENTS) |
| , m_loadState(isLocalFallback ? Loaded : NotLoaded) |
| , m_rule(rule) |
| #endif |
| { |
| UNUSED_PARAM(rule); |
| } |
| |
| FontTraitsMask m_traitsMask; |
| Vector<UnicodeRange> m_ranges; |
| HashSet<CSSSegmentedFontFace*> m_segmentedFontFaces; |
| Vector<std::unique_ptr<CSSFontFaceSource>> m_sources; |
| CSSFontFaceSource* m_activeSource; |
| bool m_isLocalFallback; |
| #if ENABLE(FONT_LOAD_EVENTS) |
| LoadState m_loadState; |
| RefPtr<CSSFontFaceRule> m_rule; |
| void notifyFontLoader(LoadState); |
| void notifyLoadingDone(); |
| #endif |
| }; |
| |
| } |
| |
| #endif |