ui/base/mojom/attributed_string.mojom

// Copyright 2020 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 ui.mojom;

import "mojo/public/mojom/base/string16.mojom";
import "ui/gfx/range/mojom/range.mojom";

// This will serialize the font information of an NSAttributedString so that
// it can be sent over mojo. This only stores the information of the
// NSFontAttributeName. The motive is that of security: using NSArchiver and
// friends to send objects from the renderer to the browser could lead to
// deserialization of arbitrary objects. This restricts serialization to a
// specific object class and specific attributes of that object.

// A C++ mojo-friendly representation of the NSFontAttributeName attribute
// set.
struct FontAttribute {
  mojo_base.mojom.String16 font_name;
  float font_point_size;
  gfx.mojom.Range effective_range;
};

// A struct that contains the pertinent information from an NSAttributedString,
// which can be serialized over mojo.
struct AttributedString {
  // The plain-text string.
  mojo_base.mojom.String16 string;
  // The set of attributes that style |string|.
  array<FontAttribute> attributes;
};