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