зеркало из https://github.com/mozilla/gecko-dev.git
128 строки
3.2 KiB
C++
128 строки
3.2 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 _GeckoTextMarker_H_
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#define _GeckoTextMarker_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 GeckoTextMarkerRange;
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class GeckoTextMarker final {
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public:
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GeckoTextMarker(Accessible* aContainer, int32_t aOffset)
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: mContainer(aContainer), mOffset(aOffset) {}
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GeckoTextMarker(const GeckoTextMarker& aPoint)
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: mContainer(aPoint.mContainer), mOffset(aPoint.mOffset) {}
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GeckoTextMarker(Accessible* aDoc, AXTextMarkerRef aTextMarker);
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GeckoTextMarker() : mContainer(nullptr), mOffset(0) {}
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static GeckoTextMarker MarkerFromIndex(Accessible* aRoot, int32_t aIndex);
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AXTextMarkerRef CreateAXTextMarker();
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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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GeckoTextMarkerRange Range(EWhichRange aRangeType);
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Accessible* Leaf();
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bool IsValid() const { return !!mContainer; };
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bool operator<(const GeckoTextMarker& aPoint) const;
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bool operator==(const GeckoTextMarker& 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 GeckoTextMarkerRange final {
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public:
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GeckoTextMarkerRange(const GeckoTextMarker& aStart,
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const GeckoTextMarker& aEnd)
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: mStart(aStart), mEnd(aEnd) {}
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GeckoTextMarkerRange() {}
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GeckoTextMarkerRange(Accessible* aDoc, AXTextMarkerRangeRef aTextMarkerRange);
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explicit GeckoTextMarkerRange(Accessible* aAccessible);
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AXTextMarkerRangeRef CreateAXTextMarkerRange();
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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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GeckoTextMarker mStart;
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GeckoTextMarker 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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