The Tor Browser: gfx/2d/ScaledFontMac.h@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef MOZILLA_GFX_SCALEDFONTMAC_H_

     7 #define MOZILLA_GFX_SCALEDFONTMAC_H_

     9 #import <ApplicationServices/ApplicationServices.h>

    10 #include "2D.h"

    12 #include "ScaledFontBase.h"

    14 namespace mozilla {

    15 namespace gfx {

    17 class ScaledFontMac : public ScaledFontBase

    18 {

    19 public:

    20   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontMac)

    21   ScaledFontMac(CGFontRef aFont, Float aSize);

    22   virtual ~ScaledFontMac();

    24   virtual FontType GetType() const { return FontType::MAC; }

    25 #ifdef USE_SKIA

    26   virtual SkTypeface* GetSkTypeface();

    27 #endif

    28   virtual TemporaryRef<Path> GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget);

    29   virtual void CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder, BackendType aBackendType, const Matrix *aTransformHint);

    30   virtual bool GetFontFileData(FontFileDataOutput aDataCallback, void *aBaton);

    32 private:

    33   friend class DrawTargetCG;

    34   CGFontRef mFont;

    35   CTFontRef mCTFont; // only created if CTFontDrawGlyphs is available, otherwise null

    37   typedef void (CTFontDrawGlyphsFuncT)(CTFontRef,

    38                                        const CGGlyph[], const CGPoint[],

    39                                        size_t, CGContextRef);

    41   static bool sSymbolLookupDone;

    43 public:

    44   // function pointer for CTFontDrawGlyphs, if available;

    45   // initialized the first time a ScaledFontMac is created,

    46   // so it will be valid by the time DrawTargetCG wants to use it

    47   static CTFontDrawGlyphsFuncT* CTFontDrawGlyphsPtr;

    48 };

    50 }

    51 }

    53 #endif /* MOZILLA_GFX_SCALEDFONTMAC_H_ */

The Tor Browser / file revision

gfx/2d/ScaledFontMac.h@97036ab72558

gfx/2d/ScaledFontMac.h