naiveproxy/components/font_service/public/interfaces/font_service.mojom
2018-01-28 13:32:06 -05:00

46 lines
1.4 KiB
Plaintext

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
module font_service.mojom;
import "mojo/common/file.mojom";
enum TypefaceSlant {
ROMAN = 0,
ITALIC = 1,
OBLIQUE = 2,
};
struct TypefaceStyle {
uint16 weight;
uint8 width;
TypefaceSlant slant;
};
// A reference to specific font on the font service.
struct FontIdentity {
uint32 id;
int32 ttc_index;
// TODO(erg): So the string is supposed to be a path. However, the current
// chrome code goes out of its way to send this to the renderer process, and
// it is passed to blink, even though the openStream() IPC in chrome uses the
// id number instead. Do more investigation about what we need to do to plug
// this system path leak.
string str_representation;
};
// Loads and resolves fonts.
//
// We still need to load fonts from within a sandboxed process. We set
// up a service to match fonts and load them,
interface FontService {
// Returns the best match for |family_name| and |style|. On error, returns a
// null |identity|.
MatchFamilyName(string family_name, TypefaceStyle style) =>
(FontIdentity? identity, string family_name, TypefaceStyle style);
// Returns a handle to the raw font specified by |id_number|.
OpenStream(uint32 id_number) => (mojo.common.mojom.File? font_handle);
};