1// Copyright (C) 2021 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QWAYLANDTEXTINPUTV3_P_H
5#define QWAYLANDTEXTINPUTV3_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include "qwaylandtextinputinterface_p.h"
19#include <QtWaylandClient/private/qwayland-text-input-unstable-v3.h>
20#include <QLoggingCategory>
21
22struct wl_callback;
23struct wl_callback_listener;
24
25QT_BEGIN_NAMESPACE
26
27Q_DECLARE_LOGGING_CATEGORY(qLcQpaWaylandTextInput)
28
29namespace QtWaylandClient {
30
31class QWaylandDisplay;
32
33class QWaylandTextInputv3 : public QtWayland::zwp_text_input_v3, public QWaylandTextInputInterface
34{
35public:
36 QWaylandTextInputv3(QWaylandDisplay *display, struct ::zwp_text_input_v3 *text_input);
37 ~QWaylandTextInputv3() override;
38
39 void reset() override;
40 void commit() override;
41 void updateState(Qt::InputMethodQueries queries, uint32_t flags) override;
42 // TODO: not supported yet
43 void setCursorInsidePreedit(int cursor) override;
44
45 bool isInputPanelVisible() const override;
46 QRectF keyboardRect() const override;
47
48 QLocale locale() const override;
49 Qt::LayoutDirection inputDirection() const override;
50
51 // doing nothing in zwp_text_input_v3.
52 // enter() and leave() takes the role to enable/disable the surface
53 void enableSurface(::wl_surface *) override {};
54 void disableSurface(::wl_surface *) override {};
55
56protected:
57 void zwp_text_input_v3_enter(struct ::wl_surface *surface) override;
58 void zwp_text_input_v3_leave(struct ::wl_surface *surface) override;
59 void zwp_text_input_v3_preedit_string(const QString &text, int32_t cursor_begin, int32_t cursor_end) override;
60 void zwp_text_input_v3_commit_string(const QString &text) override;
61 void zwp_text_input_v3_delete_surrounding_text(uint32_t before_length, uint32_t after_length) override;
62 void zwp_text_input_v3_done(uint32_t serial) override;
63
64private:
65 ::wl_surface *m_surface = nullptr; // ### Here for debugging purposes
66
67 struct PreeditInfo {
68 QString text;
69 int cursorBegin = 0;
70 int cursorEnd = 0;
71
72 void clear() {
73 text.clear();
74 cursorBegin = 0;
75 cursorEnd = 0;
76 }
77 friend bool operator==(const PreeditInfo& lhs, const PreeditInfo& rhs) {
78 return (lhs.text == rhs.text)
79 && (lhs.cursorBegin == rhs.cursorBegin)
80 && (lhs.cursorEnd == rhs.cursorEnd);
81 }
82 };
83
84 PreeditInfo m_pendingPreeditString;
85 PreeditInfo m_currentPreeditString;
86 QString m_pendingCommitString;
87 uint m_pendingDeleteBeforeText = 0; // byte length
88 uint m_pendingDeleteAfterText = 0; // byte length
89
90 QString m_surroundingText;
91 int m_cursor; // cursor position in QString
92 int m_cursorPos; // cursor position in wayland index
93 int m_anchorPos; // anchor position in wayland index
94 uint32_t m_contentHint = 0;
95 uint32_t m_contentPurpose = 0;
96 QRect m_cursorRect;
97
98 uint m_currentSerial = 0;
99
100 bool m_condReselection = false;
101};
102
103}
104
105QT_END_NAMESPACE
106
107#endif // QWAYLANDTEXTINPUTV3_P_H
108

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source code of qtwayland/src/client/qwaylandtextinputv3_p.h