layout/style/FontFaceSetDocumentImpl.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_FontFaceSetDocumentImpl_h
   8 #define mozilla_dom_FontFaceSetDocumentImpl_h
   9
  10 #include "mozilla/dom/FontFaceSetImpl.h"
  11 #include "nsICSSLoaderObserver.h"
  12 #include "nsIDOMEventListener.h"
  13
  14 namespace mozilla::dom {
  15
  16 class FontFaceSetDocumentImpl final : public FontFaceSetImpl,
  17                                       public nsIDOMEventListener,
  18                                       public nsICSSLoaderObserver {
  19   NS_DECL_ISUPPORTS_INHERITED
  20
  21  public:
  22   NS_DECL_NSIDOMEVENTLISTENER
  23
  24   FontFaceSetDocumentImpl(FontFaceSet* aOwner, dom::Document* aDocument);
  25
  26   void Initialize();
  27   void Destroy() override;
  28
  29   bool IsOnOwningThread() override;
  30 #ifdef DEBUG
  31   void AssertIsOnOwningThread() override;
  32 #endif
  33   void DispatchToOwningThread(const char* aName,
  34                               std::function<void()>&& aFunc) override;
  35
  36   void RefreshStandardFontLoadPrincipal() override;
  37
  38   dom::Document* GetDocument() const override { return mDocument; }
  39
  40   already_AddRefed<URLExtraData> GetURLExtraData() override;
  41
  42   // gfxUserFontSet
  43
  44   nsresult StartLoad(gfxUserFontEntry* aUserFontEntry,
  45                      uint32_t aSrcIndex) override;
  46
  47   bool IsFontLoadAllowed(const gfxFontFaceSrc&) override;
  48
  49   nsPresContext* GetPresContext() const override;
  50
  51   bool UpdateRules(const nsTArray<nsFontFaceRuleContainer>& aRules) override;
  52
  53   StyleLockedFontFaceRule* FindRuleForEntry(gfxFontEntry* aFontEntry) override;
  54
  55   /**
  56    * Notification method called by the nsPresContext to indicate that the
  57    * refresh driver ticked and flushed style and layout.
  58    * were just flushed.
  59    */
  60   void DidRefresh() override;
  61
  62   // nsICSSLoaderObserver
  63   NS_IMETHOD StyleSheetLoaded(StyleSheet* aSheet, bool aWasDeferred,
  64                               nsresult aStatus) override;
  65
  66   // For ServoStyleSet to know ahead of time whether a font is loadable.
  67   void CacheFontLoadability() override;
  68
  69   void EnsureReady() override;
  70
  71   bool Add(FontFaceImpl* aFontFace, ErrorResult& aRv) override;
  72
  73   void FlushUserFontSet() override;
  74   void MarkUserFontSetDirty() override;
  75
  76  private:
  77   ~FontFaceSetDocumentImpl() override;
  78
  79   uint64_t GetInnerWindowID() override;
  80
  81   void RemoveDOMContentLoadedListener();
  82
  83   nsresult CreateChannelForSyncLoadFontData(
  84       nsIChannel** aOutChannel, gfxUserFontEntry* aFontToLoad,
  85       const gfxFontFaceSrc* aFontFaceSrc) override;
  86
  87   // search for @font-face rule that matches a userfont font entry
  88   StyleLockedFontFaceRule* FindRuleForUserFontEntry(
  89       gfxUserFontEntry* aUserFontEntry) override;
  90
  91   void FindMatchingFontFaces(const nsTHashSet<FontFace*>& aMatchingFaces,
  92                              nsTArray<FontFace*>& aFontFaces) override;
  93
  94   void InsertRuleFontFace(FontFaceImpl* aFontFace, FontFace* aFontFaceOwner,
  95                           StyleOrigin aOrigin,
  96                           nsTArray<FontFaceRecord>& aOldRecords,
  97                           bool& aFontSetModified);
  98
  99   // Helper function for HasLoadingFontFaces.
 100   void UpdateHasLoadingFontFaces() override;
 101
 102   /**
 103    * Returns whether there might be any pending font loads, which should cause
 104    * the mReady Promise not to be resolved yet.
 105    */
 106   bool MightHavePendingFontLoads() override;
 107
 108 #ifdef DEBUG
 109   bool HasRuleFontFace(FontFaceImpl* aFontFace);
 110 #endif
 111
 112   TimeStamp GetNavigationStartTimeStamp() override;
 113
 114   // The document this is a FontFaceSet for.
 115   RefPtr<dom::Document> mDocument;
 116
 117   // The @font-face rule backed FontFace objects in the FontFaceSet.
 118   nsTArray<FontFaceRecord> mRuleFaces;
 119 };
 120
 121 }  // namespace mozilla::dom
 122
 123 #endif  // !defined(mozilla_dom_FontFaceSetDocumentImpl_h)