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 | #include <qpa/qplatforminputcontext.h> |
4 | |
5 | #include "qwaylandtextinputv1_p.h" |
6 | |
7 | #include "qwaylandinputcontext_p.h" |
8 | #include "qwaylandwindow_p.h" |
9 | #include "qwaylandinputmethodeventbuilder_p.h" |
10 | |
11 | #include <QtCore/qloggingcategory.h> |
12 | #include <QtGui/QGuiApplication> |
13 | #include <QtGui/private/qguiapplication_p.h> |
14 | #include <QtGui/private/qhighdpiscaling_p.h> |
15 | #include <QtGui/qpa/qplatformintegration.h> |
16 | #include <QtGui/qevent.h> |
17 | #include <QtGui/qwindow.h> |
18 | #include <QTextCharFormat> |
19 | #include <QList> |
20 | #include <QRectF> |
21 | #include <QLocale> |
22 | |
23 | QT_BEGIN_NAMESPACE |
24 | |
25 | namespace QtWaylandClient { |
26 | |
27 | namespace { |
28 | |
29 | const Qt::InputMethodQueries supportedQueries1 = Qt::ImEnabled | |
30 | Qt::ImSurroundingText | |
31 | Qt::ImCursorPosition | |
32 | Qt::ImAnchorPosition | |
33 | Qt::ImHints | |
34 | Qt::ImCursorRectangle | |
35 | Qt::ImPreferredLanguage; |
36 | } |
37 | |
38 | QWaylandTextInputv1::QWaylandTextInputv1(QWaylandDisplay *display, struct ::zwp_text_input_v1 *text_input) |
39 | : QtWayland::zwp_text_input_v1(text_input) |
40 | { |
41 | Q_UNUSED(display); |
42 | } |
43 | |
44 | QWaylandTextInputv1::~QWaylandTextInputv1() |
45 | { |
46 | if (m_resetCallback) |
47 | wl_callback_destroy(m_resetCallback); |
48 | zwp_text_input_v1_destroy(object()); |
49 | } |
50 | |
51 | void QWaylandTextInputv1::reset() |
52 | { |
53 | m_builder.reset(); |
54 | m_preeditCommit = QString(); |
55 | updateState(queries: Qt::ImQueryAll, flags: QWaylandTextInputInterface::update_state_reset); |
56 | } |
57 | |
58 | void QWaylandTextInputv1::commit() |
59 | { |
60 | if (QObject *o = QGuiApplication::focusObject()) { |
61 | QInputMethodEvent event; |
62 | event.setCommitString(commitString: m_preeditCommit); |
63 | QCoreApplication::sendEvent(receiver: o, event: &event); |
64 | } |
65 | |
66 | reset(); |
67 | } |
68 | |
69 | const wl_callback_listener QWaylandTextInputv1::callbackListener = { |
70 | QWaylandTextInputv1::resetCallback |
71 | }; |
72 | |
73 | void QWaylandTextInputv1::resetCallback(void *data, wl_callback *, uint32_t) |
74 | { |
75 | QWaylandTextInputv1 *self = static_cast<QWaylandTextInputv1*>(data); |
76 | |
77 | if (self->m_resetCallback) { |
78 | wl_callback_destroy(self->m_resetCallback); |
79 | self->m_resetCallback = nullptr; |
80 | } |
81 | } |
82 | |
83 | void QWaylandTextInputv1::updateState(Qt::InputMethodQueries queries, uint32_t flags) |
84 | { |
85 | if (!QGuiApplication::focusObject()) |
86 | return; |
87 | |
88 | if (!QGuiApplication::focusWindow() || !QGuiApplication::focusWindow()->handle()) |
89 | return; |
90 | |
91 | auto *window = static_cast<QWaylandWindow *>(QGuiApplication::focusWindow()->handle()); |
92 | auto *surface = window->wlSurface(); |
93 | if (!surface || (surface != m_surface)) |
94 | return; |
95 | |
96 | queries &= supportedQueries1; |
97 | |
98 | // Surrounding text, cursor and anchor positions are transferred together |
99 | if ((queries & Qt::ImSurroundingText) || (queries & Qt::ImCursorPosition) || (queries & Qt::ImAnchorPosition)) |
100 | queries |= Qt::ImSurroundingText | Qt::ImCursorPosition | Qt::ImAnchorPosition; |
101 | |
102 | QInputMethodQueryEvent event(queries); |
103 | QCoreApplication::sendEvent(receiver: QGuiApplication::focusObject(), event: &event); |
104 | |
105 | if ((queries & Qt::ImSurroundingText) || (queries & Qt::ImCursorPosition) || (queries & Qt::ImAnchorPosition)) { |
106 | QString text = event.value(query: Qt::ImSurroundingText).toString(); |
107 | int cursor = event.value(query: Qt::ImCursorPosition).toInt(); |
108 | int anchor = event.value(query: Qt::ImAnchorPosition).toInt(); |
109 | |
110 | // Make sure text is not too big |
111 | if (text.toUtf8().size() > 2048) { |
112 | int c = qAbs(t: cursor - anchor) <= 512 ? qMin(a: cursor, b: anchor) + qAbs(t: cursor - anchor) / 2: cursor; |
113 | |
114 | const int offset = c - qBound(min: 0, val: c, max: 512 - qMin(a: text.size() - c, b: 256)); |
115 | text = text.mid(position: offset + c - 256, n: 512); |
116 | cursor -= offset; |
117 | anchor -= offset; |
118 | } |
119 | |
120 | set_surrounding_text(text, QWaylandInputMethodEventBuilder::indexToWayland(text, length: cursor), QWaylandInputMethodEventBuilder::indexToWayland(text, length: anchor)); |
121 | } |
122 | |
123 | if (queries & Qt::ImHints) { |
124 | QWaylandInputMethodContentType contentType = QWaylandInputMethodContentType::convert(hints: static_cast<Qt::InputMethodHints>(event.value(query: Qt::ImHints).toInt())); |
125 | set_content_type(contentType.hint, contentType.purpose); |
126 | } |
127 | |
128 | if (queries & Qt::ImCursorRectangle) { |
129 | const QRect &cRect = event.value(query: Qt::ImCursorRectangle).toRect(); |
130 | const QRect &windowRect = QGuiApplication::inputMethod()->inputItemTransform().mapRect(cRect); |
131 | const QRect &nativeRect = QHighDpi::toNativePixels(value: windowRect, context: QGuiApplication::focusWindow()); |
132 | const QMargins margins = window->clientSideMargins(); |
133 | const QRect &surfaceRect = nativeRect.translated(dx: margins.left(), dy: margins.top()); |
134 | set_cursor_rectangle(surfaceRect.x(), surfaceRect.y(), surfaceRect.width(), surfaceRect.height()); |
135 | } |
136 | |
137 | if (queries & Qt::ImPreferredLanguage) { |
138 | const QString &language = event.value(query: Qt::ImPreferredLanguage).toString(); |
139 | set_preferred_language(language); |
140 | } |
141 | |
142 | if (flags == QWaylandTextInputInterface::update_state_reset) |
143 | QtWayland::zwp_text_input_v1::reset(); |
144 | else |
145 | commit_state(m_serial); |
146 | } |
147 | |
148 | void QWaylandTextInputv1::setCursorInsidePreedit(int) |
149 | { |
150 | // Not supported yet |
151 | } |
152 | |
153 | bool QWaylandTextInputv1::isInputPanelVisible() const |
154 | { |
155 | return m_inputPanelVisible; |
156 | } |
157 | |
158 | QRectF QWaylandTextInputv1::keyboardRect() const |
159 | { |
160 | return m_keyboardRectangle; |
161 | } |
162 | |
163 | QLocale QWaylandTextInputv1::locale() const |
164 | { |
165 | return m_locale; |
166 | } |
167 | |
168 | Qt::LayoutDirection QWaylandTextInputv1::inputDirection() const |
169 | { |
170 | return m_inputDirection; |
171 | } |
172 | |
173 | void QWaylandTextInputv1::zwp_text_input_v1_enter(::wl_surface *surface) |
174 | { |
175 | m_surface = surface; |
176 | |
177 | updateState(queries: Qt::ImQueryAll, flags: QWaylandTextInputInterface::update_state_reset); |
178 | } |
179 | |
180 | void QWaylandTextInputv1::zwp_text_input_v1_leave() |
181 | { |
182 | m_surface = nullptr; |
183 | } |
184 | |
185 | void QWaylandTextInputv1::zwp_text_input_v1_modifiers_map(wl_array *map) |
186 | { |
187 | const QList<QByteArray> modifiersMap = QByteArray::fromRawData(data: static_cast<const char*>(map->data), size: map->size).split('\0'); |
188 | |
189 | m_modifiersMap.clear(); |
190 | |
191 | for (const QByteArray &modifier : modifiersMap) { |
192 | if (modifier == "Shift") |
193 | m_modifiersMap.append(Qt::ShiftModifier); |
194 | else if (modifier == "Control") |
195 | m_modifiersMap.append(Qt::ControlModifier); |
196 | else if (modifier == "Alt") |
197 | m_modifiersMap.append(Qt::AltModifier); |
198 | else if (modifier == "Mod1") |
199 | m_modifiersMap.append(Qt::AltModifier); |
200 | else if (modifier == "Mod4") |
201 | m_modifiersMap.append(Qt::MetaModifier); |
202 | else |
203 | m_modifiersMap.append(Qt::NoModifier); |
204 | } |
205 | } |
206 | |
207 | void QWaylandTextInputv1::zwp_text_input_v1_input_panel_state(uint32_t visible) |
208 | { |
209 | const bool inputPanelVisible = (visible == 1); |
210 | if (m_inputPanelVisible != inputPanelVisible) { |
211 | m_inputPanelVisible = inputPanelVisible; |
212 | QGuiApplicationPrivate::platformIntegration()->inputContext()->emitInputPanelVisibleChanged(); |
213 | } |
214 | } |
215 | |
216 | void QWaylandTextInputv1::zwp_text_input_v1_preedit_string(uint32_t serial, const QString &text, const QString &commit) |
217 | { |
218 | m_serial = serial; |
219 | |
220 | if (m_resetCallback) { |
221 | qCDebug(qLcQpaInputMethods()) << "discard preedit_string: reset not confirmed"; |
222 | m_builder.reset(); |
223 | return; |
224 | } |
225 | |
226 | if (!QGuiApplication::focusObject()) |
227 | return; |
228 | |
229 | QInputMethodEvent *event = m_builder.buildPreedit(text); |
230 | |
231 | m_builder.reset(); |
232 | m_preeditCommit = commit; |
233 | |
234 | QCoreApplication::sendEvent(receiver: QGuiApplication::focusObject(), event); |
235 | delete event; |
236 | } |
237 | |
238 | void QWaylandTextInputv1::zwp_text_input_v1_preedit_styling(uint32_t index, uint32_t length, uint32_t style) |
239 | { |
240 | m_builder.addPreeditStyling(index, length, style); |
241 | } |
242 | |
243 | void QWaylandTextInputv1::zwp_text_input_v1_preedit_cursor(int32_t index) |
244 | { |
245 | m_builder.setPreeditCursor(index); |
246 | } |
247 | |
248 | void QWaylandTextInputv1::zwp_text_input_v1_commit_string(uint32_t serial, const QString &text) |
249 | { |
250 | m_serial = serial; |
251 | |
252 | if (m_resetCallback) { |
253 | qCDebug(qLcQpaInputMethods()) << "discard commit_string: reset not confirmed"; |
254 | m_builder.reset(); |
255 | return; |
256 | } |
257 | |
258 | if (!QGuiApplication::focusObject()) |
259 | return; |
260 | |
261 | // When committing the text, the preeditString needs to be reset, to prevent it to be |
262 | // send again in the commit() function |
263 | m_preeditCommit.clear(); |
264 | |
265 | QInputMethodEvent *event = m_builder.buildCommit(text); |
266 | |
267 | m_builder.reset(); |
268 | |
269 | QCoreApplication::sendEvent(receiver: QGuiApplication::focusObject(), event); |
270 | delete event; |
271 | } |
272 | |
273 | void QWaylandTextInputv1::zwp_text_input_v1_cursor_position(int32_t index, int32_t anchor) |
274 | { |
275 | m_builder.setCursorPosition(index, anchor); |
276 | } |
277 | |
278 | void QWaylandTextInputv1::zwp_text_input_v1_delete_surrounding_text(int32_t before_length, uint32_t after_length) |
279 | { |
280 | //before_length is negative, but the builder expects it to be positive |
281 | m_builder.setDeleteSurroundingText(beforeLength: -before_length, afterLength: after_length); |
282 | } |
283 | |
284 | void QWaylandTextInputv1::zwp_text_input_v1_keysym(uint32_t serial, uint32_t time, uint32_t sym, uint32_t state, uint32_t modifiers) |
285 | { |
286 | m_serial = serial; |
287 | |
288 | #if QT_CONFIG(xkbcommon) |
289 | if (m_resetCallback) { |
290 | qCDebug(qLcQpaInputMethods()) << "discard keysym: reset not confirmed"; |
291 | return; |
292 | } |
293 | |
294 | if (!QGuiApplication::focusWindow()) |
295 | return; |
296 | |
297 | Qt::KeyboardModifiers qtModifiers = modifiersToQtModifiers(modifiers); |
298 | |
299 | QEvent::Type type = state == WL_KEYBOARD_KEY_STATE_PRESSED ? QEvent::KeyPress : QEvent::KeyRelease; |
300 | QString text = QXkbCommon::lookupStringNoKeysymTransformations(keysym: sym); |
301 | int qtkey = QXkbCommon::keysymToQtKey(keysym: sym, modifiers: qtModifiers); |
302 | |
303 | QWindowSystemInterface::handleKeyEvent(window: QGuiApplication::focusWindow(), |
304 | timestamp: time, t: type, k: qtkey, mods: qtModifiers, text); |
305 | #else |
306 | Q_UNUSED(time); |
307 | Q_UNUSED(sym); |
308 | Q_UNUSED(state); |
309 | Q_UNUSED(modifiers); |
310 | #endif |
311 | } |
312 | |
313 | void QWaylandTextInputv1::zwp_text_input_v1_language(uint32_t serial, const QString &language) |
314 | { |
315 | m_serial = serial; |
316 | |
317 | if (m_resetCallback) { |
318 | qCDebug(qLcQpaInputMethods()) << "discard language: reset not confirmed"; |
319 | return; |
320 | } |
321 | |
322 | const QLocale locale(language); |
323 | if (m_locale != locale) { |
324 | m_locale = locale; |
325 | QGuiApplicationPrivate::platformIntegration()->inputContext()->emitLocaleChanged(); |
326 | } |
327 | } |
328 | |
329 | void QWaylandTextInputv1::zwp_text_input_v1_text_direction(uint32_t serial, uint32_t direction) |
330 | { |
331 | m_serial = serial; |
332 | |
333 | if (m_resetCallback) { |
334 | qCDebug(qLcQpaInputMethods()) << "discard text_direction: reset not confirmed"; |
335 | return; |
336 | } |
337 | |
338 | const Qt::LayoutDirection inputDirection = (direction == text_direction_auto) ? Qt::LayoutDirectionAuto : |
339 | (direction == text_direction_ltr) ? Qt::LeftToRight : |
340 | (direction == text_direction_rtl) ? Qt::RightToLeft : Qt::LayoutDirectionAuto; |
341 | if (m_inputDirection != inputDirection) { |
342 | m_inputDirection = inputDirection; |
343 | QGuiApplicationPrivate::platformIntegration()->inputContext()->emitInputDirectionChanged(newDirection: m_inputDirection); |
344 | } |
345 | } |
346 | |
347 | Qt::KeyboardModifiers QWaylandTextInputv1::modifiersToQtModifiers(uint32_t modifiers) |
348 | { |
349 | Qt::KeyboardModifiers ret = Qt::NoModifier; |
350 | for (int i = 0; i < m_modifiersMap.size(); ++i) { |
351 | if (modifiers & (1 << i)) { |
352 | ret |= m_modifiersMap[i]; |
353 | } |
354 | } |
355 | return ret; |
356 | } |
357 | |
358 | } |
359 | |
360 | QT_END_NAMESPACE |
361 | |
362 |
Definitions
- supportedQueries1
- QWaylandTextInputv1
- ~QWaylandTextInputv1
- reset
- commit
- callbackListener
- resetCallback
- updateState
- setCursorInsidePreedit
- isInputPanelVisible
- keyboardRect
- locale
- inputDirection
- zwp_text_input_v1_enter
- zwp_text_input_v1_leave
- zwp_text_input_v1_modifiers_map
- zwp_text_input_v1_input_panel_state
- zwp_text_input_v1_preedit_string
- zwp_text_input_v1_preedit_styling
- zwp_text_input_v1_preedit_cursor
- zwp_text_input_v1_commit_string
- zwp_text_input_v1_cursor_position
- zwp_text_input_v1_delete_surrounding_text
- zwp_text_input_v1_keysym
- zwp_text_input_v1_language
- zwp_text_input_v1_text_direction
Learn to use CMake with our Intro Training
Find out more