| /* |
| * Copyright (C) 2013 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: |
| * |
| * 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. AND ITS 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 APPLE INC. OR ITS 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_FONT_FACE_SET_DOCUMENT_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_FONT_FACE_SET_DOCUMENT_H_ |
| |
| #include "base/macros.h" |
| #include "third_party/blink/renderer/bindings/core/v8/iterable.h" |
| #include "third_party/blink/renderer/bindings/core/v8/script_promise.h" |
| #include "third_party/blink/renderer/core/css/css_font_selector.h" |
| #include "third_party/blink/renderer/core/css/font_face.h" |
| #include "third_party/blink/renderer/core/css/font_face_set.h" |
| #include "third_party/blink/renderer/core/css/style_engine.h" |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/dom/events/event_listener.h" |
| #include "third_party/blink/renderer/core/dom/events/event_target.h" |
| #include "third_party/blink/renderer/platform/async_method_runner.h" |
| #include "third_party/blink/renderer/platform/heap/handle.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| |
| namespace blink { |
| |
| class Font; |
| |
| class CORE_EXPORT FontFaceSetDocument final : public FontFaceSet, |
| public Supplement<Document> { |
| USING_GARBAGE_COLLECTED_MIXIN(FontFaceSetDocument); |
| |
| public: |
| static const char kSupplementName[]; |
| |
| explicit FontFaceSetDocument(Document&); |
| ~FontFaceSetDocument() override; |
| |
| ScriptPromise ready(ScriptState*) override; |
| |
| AtomicString status() const override; |
| |
| void DidLayout(); |
| void BeginFontLoading(FontFace*); |
| |
| // FontFace::LoadFontCallback |
| void NotifyLoaded(FontFace*) override; |
| void NotifyError(FontFace*) override; |
| |
| size_t ApproximateBlankCharacterCount() const; |
| |
| static FontFaceSetDocument* From(Document&); |
| static void DidLayout(Document&); |
| static size_t ApproximateBlankCharacterCount(Document&); |
| |
| void Trace(blink::Visitor*) override; |
| |
| protected: |
| bool InActiveContext() const override; |
| FontSelector* GetFontSelector() const override { |
| return GetDocument()->GetStyleEngine().GetFontSelector(); |
| } |
| |
| bool ResolveFontStyle(const String&, Font&) override; |
| |
| private: |
| static FontFaceSetDocument* Create(Document& document) { |
| return MakeGarbageCollected<FontFaceSetDocument>(document); |
| } |
| |
| void FireDoneEventIfPossible() override; |
| const HeapLinkedHashSet<Member<FontFace>>& CSSConnectedFontFaceList() |
| const override; |
| |
| class FontLoadHistogram { |
| DISALLOW_NEW(); |
| |
| public: |
| enum Status { kNoWebFonts, kHadBlankText, kDidNotHaveBlankText, kReported }; |
| FontLoadHistogram() : status_(kNoWebFonts), count_(0), recorded_(false) {} |
| void IncrementCount() { count_++; } |
| void UpdateStatus(FontFace*); |
| void Record(); |
| |
| private: |
| Status status_; |
| int count_; |
| bool recorded_; |
| }; |
| FontLoadHistogram histogram_; |
| DISALLOW_COPY_AND_ASSIGN(FontFaceSetDocument); |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_FONT_FACE_SET_DOCUMENT_H_ |