gecko-dev/dom/base/StyledRange.h
Jan-Niklas Jaeschke ebf3cd6240 Bug 1808565, part 1: Adapt Selection to support StaticRanges. r=webidl,saschanaz,masayuki,smaug
This change is necessary to support the [CSS Highlight API](https://drafts.csswg.org/css-highlight-api-1/),
which uses `Selection` internally.

To replace `nsRange` with `AbstractRange`, some sections needed to be
adapted since `nsRange`-specific features were used.
Therefore, some methods (such as `GetRangeAt()`) may only be called if
the `Selection` is *not* of type `SelectionType::eHighlight`,
as it (per spec) returns an `nsRange`.
These methods will now `MOZ_ASSERT` if called for a highlight selection.
Additional methods are implemented which return `AbstractRange`
instead and are safe to be called for every selection type.

This commit also improves support of highlight features:
- Invalidation of highlight ranges: adding/removing Ranges in-place instead of
  removing and re-adding the Selection object associated with the highlight.
- Ranges are only associated with the Selection that shares the same Document
- Fixed minor IDL issue

Differential Revision: https://phabricator.services.mozilla.com/D170582
2023-03-03 14:59:47 +00:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef DOM_BASE_STYLED_RANGE_H_
#define DOM_BASE_STYLED_RANGE_H_
#include "mozilla/RefPtr.h"
#include "mozilla/TextRange.h"
namespace mozilla::dom {
class AbstractRange;
}
struct StyledRange {
explicit StyledRange(mozilla::dom::AbstractRange* aRange);
RefPtr<mozilla::dom::AbstractRange> mRange;
mozilla::TextRangeStyle mTextRangeStyle;
};
#endif // DOM_BASE_STYLED_RANGE_H_