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Diffstat (limited to 'src/client/qwaylandinputmethodcontext.cpp')
| -rw-r--r-- | src/client/qwaylandinputmethodcontext.cpp | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/src/client/qwaylandinputmethodcontext.cpp b/src/client/qwaylandinputmethodcontext.cpp new file mode 100644 index 000000000..2733e4f3a --- /dev/null +++ b/src/client/qwaylandinputmethodcontext.cpp @@ -0,0 +1,401 @@ +// Copyright (C) 2020 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only + +#include "qwaylandinputmethodcontext_p.h" +#include "qwaylanddisplay_p.h" +#include "qwaylandinputdevice_p.h" + +#include <QtGui/qguiapplication.h> +#include <QtGui/qtextformat.h> +#include <QtGui/private/qguiapplication_p.h> + +QT_BEGIN_NAMESPACE + +Q_DECLARE_LOGGING_CATEGORY(qLcQpaInputMethods) + +namespace QtWaylandClient { + +static constexpr int maxStringSize = 1000; // actual max is 4096/3 + +QWaylandTextInputMethod::QWaylandTextInputMethod(QWaylandDisplay *display, struct ::qt_text_input_method_v1 *textInputMethod) + : QtWayland::qt_text_input_method_v1(textInputMethod) +{ + Q_UNUSED(display); +} + +QWaylandTextInputMethod::~QWaylandTextInputMethod() +{ + qt_text_input_method_v1_destroy(object()); +} + +void QWaylandTextInputMethod::text_input_method_v1_visible_changed(int32_t visible) +{ + if (m_isVisible != visible) { + m_isVisible = visible; + QGuiApplicationPrivate::platformIntegration()->inputContext()->emitInputPanelVisibleChanged(); + } +} + +void QWaylandTextInputMethod::text_input_method_v1_locale_changed(const QString &localeName) +{ + m_locale = QLocale(localeName); +} + +void QWaylandTextInputMethod::text_input_method_v1_input_direction_changed(int32_t inputDirection) +{ + m_layoutDirection = Qt::LayoutDirection(inputDirection); +} + +void QWaylandTextInputMethod::text_input_method_v1_keyboard_rectangle_changed(wl_fixed_t x, wl_fixed_t y, wl_fixed_t width, wl_fixed_t height) +{ + const QRectF keyboardRectangle(wl_fixed_to_double(x), + wl_fixed_to_double(y), + wl_fixed_to_double(width), + wl_fixed_to_double(height)); + if (m_keyboardRect != keyboardRectangle) { + m_keyboardRect = keyboardRectangle; + QGuiApplicationPrivate::platformIntegration()->inputContext()->emitKeyboardRectChanged(); + } +} + +void QWaylandTextInputMethod::text_input_method_v1_start_input_method_event(uint32_t serial, int32_t surrounding_text_offset) +{ + if (m_pendingInputMethodEvents.contains(serial)) { + qCWarning(qLcQpaInputMethods) << "Input method event with serial" << serial << "already started"; + return; + } + + m_pendingInputMethodEvents[serial] = QList<QInputMethodEvent::Attribute>{}; + m_offsetFromCompositor[serial] = surrounding_text_offset; +} + +// We need to keep surrounding text below maxStringSize characters, with cursorPos centered in that substring + +static int calculateOffset(const QString &text, int cursorPos) +{ + int size = text.size(); + int halfSize = maxStringSize/2; + if (size <= maxStringSize || cursorPos < halfSize) + return 0; + if (cursorPos > size - halfSize) + return size - maxStringSize; + return cursorPos - halfSize; +} + +static QString mapSurroundingTextToCompositor(const QString &s, int offset) +{ + return s.mid(offset, maxStringSize); +} + +static int mapPositionToCompositor(int pos, int offset) +{ + return pos - offset; +} + +static int mapPositionFromCompositor(int pos, int offset) +{ + return pos + offset; +} + +void QWaylandTextInputMethod::text_input_method_v1_input_method_event_attribute(uint32_t serial, int32_t type, int32_t start, int32_t length, const QString &value) +{ + if (!m_pendingInputMethodEvents.contains(serial)) { + qCWarning(qLcQpaInputMethods) << "Input method event with serial" << serial << "does not exist"; + return; + } + + int startMapped = mapPositionFromCompositor(start, m_offsetFromCompositor[serial]); + QList<QInputMethodEvent::Attribute> &attributes = m_pendingInputMethodEvents[serial]; + switch (type) { + case QInputMethodEvent::Selection: + attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::AttributeType(type), startMapped, length)); + break; + case QInputMethodEvent::Cursor: + attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::AttributeType(type), start, length, QColor::fromString(value))); + break; + case QInputMethodEvent::TextFormat: + { + QTextCharFormat textFormat; + textFormat.setProperty(QTextFormat::FontUnderline, true); + textFormat.setProperty(QTextFormat::TextUnderlineStyle, QTextCharFormat::SingleUnderline); + attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::AttributeType(type), start, length, textFormat)); + break; + } + case QInputMethodEvent::Language: + case QInputMethodEvent::Ruby: + attributes.append(QInputMethodEvent::Attribute(QInputMethodEvent::AttributeType(type), start, length, value)); + break; + }; +} + +void QWaylandTextInputMethod::sendInputState(QInputMethodQueryEvent *event, Qt::InputMethodQueries queries) +{ + int cursorPosition = event->value(Qt::ImCursorPosition).toInt(); + int anchorPosition = event->value(Qt::ImAnchorPosition).toInt(); + QString surroundingText = event->value(Qt::ImSurroundingText).toString(); + int offset = calculateOffset(surroundingText, cursorPosition); + + if (queries & Qt::ImCursorPosition) + update_cursor_position(mapPositionToCompositor(cursorPosition, offset)); + if (queries & Qt::ImSurroundingText) + update_surrounding_text(mapSurroundingTextToCompositor(surroundingText, offset), offset); + if (queries & Qt::ImAnchorPosition) + update_anchor_position(mapPositionToCompositor(anchorPosition, offset)); + if (queries & Qt::ImAbsolutePosition) + update_absolute_position(event->value(Qt::ImAbsolutePosition).toInt()); // do not map: this is the position in the whole document +} + + +void QWaylandTextInputMethod::text_input_method_v1_end_input_method_event(uint32_t serial, const QString &commitString, const QString &preeditString, int32_t replacementStart, int32_t replacementLength) +{ + if (!m_pendingInputMethodEvents.contains(serial)) { + qCWarning(qLcQpaInputMethods) << "Input method event with serial" << serial << "does not exist"; + return; + } + + QList<QInputMethodEvent::Attribute> attributes = m_pendingInputMethodEvents.take(serial); + m_offsetFromCompositor.remove(serial); + if (QGuiApplication::focusObject() != nullptr) { + QInputMethodEvent event(preeditString, attributes); + event.setCommitString(commitString, replacementStart, replacementLength); + QCoreApplication::sendEvent(QGuiApplication::focusObject(), &event); + } + + // Send current state to make sure it matches + if (QGuiApplication::focusObject() != nullptr) { + QInputMethodQueryEvent event(Qt::ImCursorPosition | Qt::ImSurroundingText | Qt::ImAnchorPosition | Qt::ImAbsolutePosition); + QCoreApplication::sendEvent(QGuiApplication::focusObject(), &event); + sendInputState(&event); + } + + acknowledge_input_method(); +} + +void QWaylandTextInputMethod::text_input_method_v1_key(int32_t type, + int32_t key, + int32_t modifiers, + int32_t autoRepeat, + int32_t count, + int32_t nativeScanCode, + int32_t nativeVirtualKey, + int32_t nativeModifiers, + const QString &text) +{ + if (QGuiApplication::focusObject() != nullptr) { + QKeyEvent event(QKeyEvent::Type(type), + key, + Qt::KeyboardModifiers(modifiers), + nativeScanCode, + nativeVirtualKey, + nativeModifiers, + text, + autoRepeat, + count); + QCoreApplication::sendEvent(QGuiApplication::focusObject(), &event); + } +} + +void QWaylandTextInputMethod::text_input_method_v1_enter(struct ::wl_surface *surface) +{ + m_surface = surface; +} + +void QWaylandTextInputMethod::text_input_method_v1_leave(struct ::wl_surface *surface) +{ + if (surface != m_surface) { + qCWarning(qLcQpaInputMethods) << "Got leave event for surface without corresponding enter"; + } else { + m_surface = nullptr; + } +} + +QWaylandInputMethodContext::QWaylandInputMethodContext(QWaylandDisplay *display) + : m_display(display) +{ +} + +QWaylandInputMethodContext::~QWaylandInputMethodContext() +{ +} + +bool QWaylandInputMethodContext::isValid() const +{ + return m_display->textInputMethodManager() != nullptr; +} + +void QWaylandInputMethodContext::reset() +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + inputMethod->reset(); +} + +void QWaylandInputMethodContext::commit() +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + inputMethod->commit(); + + m_display->forceRoundTrip(); +} + +void QWaylandInputMethodContext::update(Qt::InputMethodQueries queries) +{ + wl_surface *currentSurface = m_currentWindow != nullptr && m_currentWindow->handle() != nullptr + ? static_cast<QWaylandWindow *>(m_currentWindow->handle())->wlSurface() + : nullptr; + if (currentSurface != nullptr && !inputMethodAccepted()) { + textInputMethod()->disable(currentSurface); + m_currentWindow.clear(); + } else if (currentSurface == nullptr && inputMethodAccepted()) { + QWindow *window = QGuiApplication::focusWindow(); + currentSurface = window != nullptr && window->handle() != nullptr + ? static_cast<QWaylandWindow *>(window->handle())->wlSurface() + : nullptr; + if (currentSurface != nullptr) { + textInputMethod()->disable(currentSurface); + m_currentWindow = window; + } + } + + queries &= (Qt::ImEnabled + | Qt::ImHints + | Qt::ImCursorRectangle + | Qt::ImCursorPosition + | Qt::ImSurroundingText + | Qt::ImCurrentSelection + | Qt::ImAnchorPosition + | Qt::ImTextAfterCursor + | Qt::ImTextBeforeCursor + | Qt::ImPreferredLanguage); + + const Qt::InputMethodQueries queriesNeedingOffset = Qt::ImCursorPosition | Qt::ImSurroundingText | Qt::ImAnchorPosition; + if (queries & queriesNeedingOffset) + queries |= queriesNeedingOffset; + + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr && QGuiApplication::focusObject() != nullptr) { + QInputMethodQueryEvent event(queries); + QCoreApplication::sendEvent(QGuiApplication::focusObject(), &event); + + inputMethod->start_update(int(queries)); + + if (queries & Qt::ImHints) + inputMethod->update_hints(event.value(Qt::ImHints).toInt()); + + if (queries & Qt::ImCursorRectangle) { + QRect rect = event.value(Qt::ImCursorRectangle).toRect(); + inputMethod->update_cursor_rectangle(rect.x(), rect.y(), rect.width(), rect.height()); + } + + inputMethod->sendInputState(&event, queries); + + if (queries & Qt::ImPreferredLanguage) + inputMethod->update_preferred_language(event.value(Qt::ImPreferredLanguage).toString()); + + inputMethod->end_update(); + + // ### Should we do a display sync here and ignore all events until it is received? + } +} + +void QWaylandInputMethodContext::invokeAction(QInputMethod::Action action, int cursorPosition) +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + inputMethod->invoke_action(int(action), cursorPosition); +} + +void QWaylandInputMethodContext::showInputPanel() +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + inputMethod->show_input_panel(); +} + +void QWaylandInputMethodContext::hideInputPanel() +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + inputMethod->hide_input_panel(); +} + +bool QWaylandInputMethodContext::isInputPanelVisible() const +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + return inputMethod->isVisible(); + else + return false; +} + +QRectF QWaylandInputMethodContext::keyboardRect() const +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + return inputMethod->keyboardRect(); + else + return QRectF(); +} + +QLocale QWaylandInputMethodContext::locale() const +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + return inputMethod->locale(); + else + return QLocale(); +} + +Qt::LayoutDirection QWaylandInputMethodContext::inputDirection() const +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod != nullptr) + return inputMethod->inputDirection(); + else + return Qt::LeftToRight; +} + +void QWaylandInputMethodContext::setFocusObject(QObject *) +{ + QWaylandTextInputMethod *inputMethod = textInputMethod(); + if (inputMethod == nullptr) + return; + + if (inputMethod->isVisible() && !inputMethodAccepted()) + inputMethod->hide_input_panel(); + + QWindow *window = QGuiApplication::focusWindow(); + + if (m_currentWindow != nullptr && m_currentWindow->handle() != nullptr) { + if (m_currentWindow.data() != window || !inputMethodAccepted()) { + auto *surface = static_cast<QWaylandWindow *>(m_currentWindow->handle())->wlSurface(); + if (surface) + inputMethod->disable(surface); + m_currentWindow.clear(); + } + } + + if (window != nullptr && window->handle() != nullptr && inputMethodAccepted()) { + if (m_currentWindow.data() != window) { + auto *surface = static_cast<QWaylandWindow *>(window->handle())->wlSurface(); + if (surface != nullptr) { + inputMethod->enable(surface); + m_currentWindow = window; + } + } + + update(Qt::ImQueryAll); + } +} + +QWaylandTextInputMethod *QWaylandInputMethodContext::textInputMethod() const +{ + return m_display->defaultInputDevice() ? m_display->defaultInputDevice()->textInputMethod() : nullptr; +} + +} // QtWaylandClient + +QT_END_NAMESPACE + +#include "moc_qwaylandinputmethodcontext_p.cpp" |