a01500c390
Abstracting the text marker will allow us to have a drop-in caching version in the next patch. In this change I moved the (de)serializing code to the proxy class and changed it from being a constructor to a static method. I also added standalone get-range-for methods instead of the enum because the caching version will transition away from it. It was useful in the non-caching version because it allowed us to have one sync message with an enum and a switch statement in the recieving end. Differential Revision: https://phabricator.services.mozilla.com/D168450
120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
/* clang-format off */
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/* -*- Mode: Objective-C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* clang-format on */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _LegacyTextMarker_H_
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#define _LegacyTextMarker_H_
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#include <ApplicationServices/ApplicationServices.h>
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#include <Foundation/Foundation.h>
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#include "HyperTextAccessibleWrap.h"
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#include "PlatformExtTypes.h"
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#include "SDKDeclarations.h"
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namespace mozilla {
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namespace a11y {
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class Accessible;
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class LegacyTextMarkerRange;
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class LegacyTextMarker final {
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public:
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LegacyTextMarker(Accessible* aContainer, int32_t aOffset)
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: mContainer(aContainer), mOffset(aOffset) {}
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LegacyTextMarker(const LegacyTextMarker& aPoint)
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: mContainer(aPoint.mContainer), mOffset(aPoint.mOffset) {}
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LegacyTextMarker() : mContainer(nullptr), mOffset(0) {}
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static LegacyTextMarker MarkerFromIndex(Accessible* aRoot, int32_t aIndex);
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bool Next();
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bool Previous();
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// Return a range with the given type relative to this marker.
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LegacyTextMarkerRange Range(EWhichRange aRangeType) const;
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Accessible* Leaf();
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bool IsValid() const { return !!mContainer; };
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bool operator<(const LegacyTextMarker& aPoint) const;
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bool operator==(const LegacyTextMarker& aPoint) const {
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return mContainer == aPoint.mContainer && mOffset == aPoint.mOffset;
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}
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Accessible* mContainer;
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int32_t mOffset;
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HyperTextAccessibleWrap* ContainerAsHyperTextWrap() const {
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return (mContainer && mContainer->IsLocal())
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? static_cast<HyperTextAccessibleWrap*>(
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mContainer->AsLocal()->AsHyperText())
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: nullptr;
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}
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private:
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bool IsEditableRoot();
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};
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class LegacyTextMarkerRange final {
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public:
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LegacyTextMarkerRange(const LegacyTextMarker& aStart,
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const LegacyTextMarker& aEnd)
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: mStart(aStart), mEnd(aEnd) {}
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LegacyTextMarkerRange() {}
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explicit LegacyTextMarkerRange(Accessible* aAccessible);
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bool IsValid() const { return !!mStart.mContainer && !!mEnd.mContainer; };
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/**
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* Return text enclosed by the range.
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*/
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NSString* Text() const;
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/**
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* Return the attributed text enclosed by the range.
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*/
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NSAttributedString* AttributedText() const;
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/**
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* Return length of characters enclosed by the range.
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*/
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int32_t Length() const;
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/**
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* Return screen bounds of range.
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*/
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NSValue* Bounds() const;
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/**
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* Set the current range as the DOM selection.
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*/
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MOZ_CAN_RUN_SCRIPT_BOUNDARY void Select() const;
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/**
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* Crops the range if it overlaps the given accessible element boundaries.
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* Return true if successfully cropped. false if the range does not intersect
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* with the container.
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*/
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bool Crop(Accessible* aContainer);
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LegacyTextMarker mStart;
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LegacyTextMarker mEnd;
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};
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} // namespace a11y
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} // namespace mozilla
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#endif
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