| /* |
| * 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 COMPUTER, 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 COMPUTER, 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 "core/CoreExport.h" |
| #include "core/css/CSSFontFaceSource.h" |
| #include "core/css/CSSSegmentedFontFace.h" |
| #include "core/css/FontFace.h" |
| #include "platform/fonts/SegmentedFontData.h" |
| #include "wtf/Deque.h" |
| #include "wtf/Forward.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/Vector.h" |
| |
| namespace blink { |
| |
| class FontDescription; |
| class RemoteFontFaceSource; |
| class SimpleFontData; |
| |
| class CORE_EXPORT CSSFontFace final : public NoBaseWillBeGarbageCollectedFinalized<CSSFontFace> { |
| USING_FAST_MALLOC_WILL_BE_REMOVED(CSSFontFace); |
| WTF_MAKE_NONCOPYABLE(CSSFontFace); |
| public: |
| struct UnicodeRange; |
| class UnicodeRangeSet; |
| |
| CSSFontFace(FontFace* fontFace, Vector<UnicodeRange>& ranges) |
| : m_ranges(ranges) |
| , m_segmentedFontFace(nullptr) |
| , m_fontFace(fontFace) |
| { |
| ASSERT(m_fontFace); |
| } |
| |
| FontFace* fontFace() const { return m_fontFace; } |
| |
| UnicodeRangeSet& ranges() { return m_ranges; } |
| |
| void setSegmentedFontFace(CSSSegmentedFontFace*); |
| void clearSegmentedFontFace() { m_segmentedFontFace = nullptr; } |
| |
| bool isValid() const { return !m_sources.isEmpty(); } |
| |
| void addSource(PassOwnPtrWillBeRawPtr<CSSFontFaceSource>); |
| |
| void didBeginLoad(); |
| void fontLoaded(RemoteFontFaceSource*); |
| void fontLoadWaitLimitExceeded(RemoteFontFaceSource*); |
| |
| PassRefPtr<SimpleFontData> getFontData(const FontDescription&); |
| |
| struct UnicodeRange { |
| DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
| UnicodeRange(UChar32 from, UChar32 to) |
| : m_from(from) |
| , m_to(to) |
| { |
| } |
| |
| UChar32 from() const { return m_from; } |
| UChar32 to() const { return m_to; } |
| bool contains(UChar32 c) const { return m_from <= c && c <= m_to; } |
| bool operator<(const UnicodeRange& other) const { return m_from < other.m_from; } |
| bool operator<(UChar32 c) const { return m_to < c; } |
| bool operator==(const FontDataRange& fontDataRange) const { return fontDataRange.from() == m_from && fontDataRange.to() == m_to; }; |
| |
| private: |
| UChar32 m_from; |
| UChar32 m_to; |
| }; |
| |
| class CORE_EXPORT UnicodeRangeSet { |
| DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
| public: |
| explicit UnicodeRangeSet(const Vector<UnicodeRange>&); |
| bool contains(UChar32) const; |
| bool contains(const FontDataRange&) const; |
| bool intersectsWith(const String&) const; |
| bool isEntireRange() const { return m_ranges.isEmpty(); } |
| size_t size() const { return m_ranges.size(); } |
| const UnicodeRange& rangeAt(size_t i) const { return m_ranges[i]; } |
| private: |
| Vector<UnicodeRange> m_ranges; // If empty, represents the whole code space. |
| }; |
| |
| FontFace::LoadStatus loadStatus() const { return m_fontFace->loadStatus(); } |
| bool maybeScheduleFontLoad(const FontDescription&, UChar32); |
| bool maybeScheduleFontLoad(const FontDescription&, const FontDataRange&); |
| void load(); |
| void load(const FontDescription&); |
| |
| bool hadBlankText() { return isValid() && m_sources.first()->hadBlankText(); } |
| |
| DECLARE_TRACE(); |
| |
| private: |
| void setLoadStatus(FontFace::LoadStatus); |
| |
| UnicodeRangeSet m_ranges; |
| RawPtrWillBeMember<CSSSegmentedFontFace> m_segmentedFontFace; |
| WillBeHeapDeque<OwnPtrWillBeMember<CSSFontFaceSource>> m_sources; |
| RawPtrWillBeMember<FontFace> m_fontFace; |
| }; |
| |
| } |
| |
| #endif |