mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-23 21:01:08 +00:00
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
|
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||
|
|
/* 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 mozilla_ContentData_h
|
||
|
|
#define mozilla_ContentData_h
|
||
|
|
|
||
|
|
#include <sstream>
|
||
|
|
|
||
|
|
#include "mozilla/Attributes.h"
|
||
|
|
#include "mozilla/Debug.h"
|
||
|
|
#include "mozilla/EventForwards.h"
|
||
|
|
#include "mozilla/Maybe.h"
|
||
|
|
#include "mozilla/WritingModes.h"
|
||
|
|
#include "mozilla/widget/IMEData.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This file is intended for declaring classes which store DOM content data for
|
||
|
|
* widget classes. Those data should be retrived by `WidgetQueryContentEvent`,
|
||
|
|
* notified with `IMENotification`, or set assumed data as result of dispatching
|
||
|
|
* widget events such as `WidgetKeyboardEvent`, `WidgetCompositionEvent`,
|
||
|
|
* `WidgetSelectionEvent` etc.
|
||
|
|
*/
|
||
|
|
|
||
|
|
namespace mozilla {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* ContentSelection stores DOM selection in flattend text by
|
||
|
|
* ContentEventHandler. It should be retrieved with `eQuerySelectedText` event,
|
||
|
|
* notified with `NOTIFY_IME_OF_SELECTION_CHANGE` or set by widget itself.
|
||
|
|
*/
|
||
|
|
class ContentSelection {
|
||
|
|
public:
|
||
|
|
using SelectionChangeDataBase =
|
||
|
|
widget::IMENotification::SelectionChangeDataBase;
|
||
|
|
ContentSelection() = default;
|
||
|
|
explicit ContentSelection(const SelectionChangeDataBase& aSelectionChangeData)
|
||
|
|
: mOffsetAndData(Some(aSelectionChangeData.ToUint32OffsetAndData())),
|
||
|
|
mWritingMode(aSelectionChangeData.GetWritingMode()) {}
|
||
|
|
explicit ContentSelection(const WidgetQueryContentEvent& aSelectedTextEvent);
|
||
|
|
ContentSelection(uint32_t aOffset, const WritingMode& aWritingMode)
|
||
|
|
: mOffsetAndData(Some(OffsetAndData<uint32_t>(
|
||
|
|
aOffset, EmptyString(), OffsetAndDataFor::SelectedString))),
|
||
|
|
mWritingMode(aWritingMode) {}
|
||
|
|
|
||
|
|
const OffsetAndData<uint32_t>& OffsetAndDataRef() const {
|
||
|
|
return mOffsetAndData.ref();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Collapse(uint32_t aOffset) {
|
||
|
|
if (mOffsetAndData.isSome()) {
|
||
|
|
mOffsetAndData->Collapse(aOffset);
|
||
|
|
} else {
|
||
|
|
mOffsetAndData.emplace(aOffset, EmptyString(),
|
||
|
|
OffsetAndDataFor::SelectedString);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void Clear() {
|
||
|
|
mOffsetAndData.reset();
|
||
|
|
mWritingMode = WritingMode();
|
||
|
|
}
|
||
|
|
|
||
|
|
bool HasRange() const { return mOffsetAndData.isSome(); }
|
||
|
|
const WritingMode& WritingModeRef() const { return mWritingMode; }
|
||
|
|
|
||
|
|
friend std::ostream& operator<<(std::ostream& aStream,
|
||
|
|
const ContentSelection& aContentSelection) {
|
||
|
|
if (aContentSelection.HasRange()) {
|
||
|
|
return aStream << "{ HasRange()=false }";
|
||
|
|
}
|
||
|
|
aStream << "{ mOffsetAndData=" << aContentSelection.mOffsetAndData
|
||
|
|
<< ", mWritingMode=" << aContentSelection.mWritingMode << " }";
|
||
|
|
return aStream;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
Maybe<OffsetAndData<uint32_t>> mOffsetAndData;
|
||
|
|
WritingMode mWritingMode;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace mozilla
|
||
|
|
|
||
|
|
#endif // #ifndef mozilla_ContentData_h
|