| /* |
| * 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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_FONT_FACE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_FONT_FACE_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/core/core_export.h" |
| #include "third_party/blink/renderer/core/css/css_font_face_source.h" |
| #include "third_party/blink/renderer/core/css/css_segmented_font_face.h" |
| #include "third_party/blink/renderer/core/css/font_face.h" |
| #include "third_party/blink/renderer/core/css/font_face_source.h" |
| #include "third_party/blink/renderer/platform/fonts/segmented_font_data.h" |
| #include "third_party/blink/renderer/platform/fonts/unicode_range_set.h" |
| #include "third_party/blink/renderer/platform/wtf/deque.h" |
| #include "third_party/blink/renderer/platform/wtf/forward.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class FontDescription; |
| class RemoteFontFaceSource; |
| class SimpleFontData; |
| |
| class CORE_EXPORT CSSFontFace final |
| : public GarbageCollectedFinalized<CSSFontFace> { |
| |
| public: |
| CSSFontFace(FontFace* font_face, Vector<UnicodeRange>& ranges) |
| : ranges_(base::AdoptRef(new UnicodeRangeSet(ranges))), |
| font_face_(font_face) { |
| DCHECK(font_face_); |
| } |
| |
| FontFace* GetFontFace() const { return font_face_; } |
| |
| scoped_refptr<UnicodeRangeSet> Ranges() { return ranges_; } |
| |
| void AddSegmentedFontFace(CSSSegmentedFontFace*); |
| void RemoveSegmentedFontFace(CSSSegmentedFontFace*); |
| |
| bool IsValid() const { return !sources_.IsEmpty(); } |
| size_t ApproximateBlankCharacterCount() const; |
| |
| void AddSource(CSSFontFaceSource*); |
| void SetDisplay(FontDisplay); |
| |
| void DidBeginLoad(); |
| bool FontLoaded(CSSFontFaceSource*); |
| bool FallbackVisibilityChanged(RemoteFontFaceSource*); |
| |
| scoped_refptr<SimpleFontData> GetFontData(const FontDescription&); |
| |
| FontFace::LoadStatusType LoadStatus() const { |
| return font_face_->LoadStatus(); |
| } |
| bool MaybeLoadFont(const FontDescription&, const String&); |
| bool MaybeLoadFont(const FontDescription&, const FontDataForRangeSet&); |
| void Load(); |
| void Load(const FontDescription&); |
| |
| bool HadBlankText() { return IsValid() && sources_.front()->HadBlankText(); } |
| |
| void Trace(blink::Visitor*); |
| |
| private: |
| void SetLoadStatus(FontFace::LoadStatusType); |
| |
| scoped_refptr<UnicodeRangeSet> ranges_; |
| HeapHashSet<Member<CSSSegmentedFontFace>> segmented_font_faces_; |
| HeapDeque<Member<CSSFontFaceSource>> sources_; |
| Member<FontFace> font_face_; |
| DISALLOW_COPY_AND_ASSIGN(CSSFontFace); |
| }; |
| |
| } // namespace blink |
| |
| #endif |