The Tor Browser: gfx/2d/ScaledFontBase.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_SCALEDFONTBASE_H_

     7 #define MOZILLA_GFX_SCALEDFONTBASE_H_

     9 #include "2D.h"

    11 // Skia uses cairo_scaled_font_t as the internal font type in ScaledFont

    12 #if defined(USE_SKIA) || defined(USE_CAIRO)

    13 #define USE_CAIRO_SCALED_FONT

    14 #endif

    16 #ifdef USE_SKIA

    17 #include "skia/SkPath.h"

    18 #include "skia/SkTypeface.h"

    19 #endif

    20 #ifdef USE_CAIRO_SCALED_FONT

    21 #include "cairo.h"

    22 #endif

    24 class gfxFont;

    26 namespace mozilla {

    27 namespace gfx {

    29 class ScaledFontBase : public ScaledFont

    30 {

    31 public:

    32   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontBase)

    33   ScaledFontBase(Float aSize);

    34   virtual ~ScaledFontBase();

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

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

    40   float GetSize() { return mSize; }

    42 #ifdef USE_SKIA

    43   virtual SkTypeface* GetSkTypeface() { return mTypeface; }

    44 #endif

    46   // Not true, but required to instantiate a ScaledFontBase.

    47   virtual FontType GetType() const { return FontType::SKIA; }

    49 #ifdef USE_CAIRO_SCALED_FONT

    50   cairo_scaled_font_t* GetCairoScaledFont() { return mScaledFont; }

    51   void SetCairoScaledFont(cairo_scaled_font_t* font);

    52 #endif

    54 protected:

    55   friend class DrawTargetSkia;

    56 #ifdef USE_SKIA

    57   SkTypeface* mTypeface;

    58   SkPath GetSkiaPathForGlyphs(const GlyphBuffer &aBuffer);

    59 #endif

    60 #ifdef USE_CAIRO_SCALED_FONT

    61   cairo_scaled_font_t* mScaledFont;

    62 #endif

    63   Float mSize;

    64 };

    66 }

    67 }

    69 #endif /* MOZILLA_GFX_SCALEDFONTBASE_H_ */

The Tor Browser / file revision

gfx/2d/ScaledFontBase.h@97036ab72558

gfx/2d/ScaledFontBase.h