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/*
* SPDX-FileCopyrightText: 2012~2017 CSSlayer <wengxt@gmail.com>
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef QFCITXINPUTCONTEXT_H
#define QFCITXINPUTCONTEXT_H
#include "fcitxqtinputcontextproxy.h"
#include "fcitxqtwatcher.h"
#include <QApplication>
#include <QDBusConnection>
#include <QDBusServiceWatcher>
#include <QInputContext>
#include <QKeyEvent>
#include <QPointer>
#include <QRect>
#include <QWidget>
#include <memory>
#include <unordered_map>
#include <xkbcommon/xkbcommon-compose.h>
namespace fcitx {
class FcitxQtConnection;
struct FcitxQtICData {
FcitxQtICData(FcitxQtWatcher *watcher)
: proxy(new FcitxQtInputContextProxy(watcher, watcher)) {}
FcitxQtICData(const FcitxQtICData &that) = delete;
~FcitxQtICData() { delete proxy; }
quint64 capability = 0;
FcitxQtInputContextProxy *proxy;
QRect rect;
// Last key event forwarded.
std::unique_ptr<QKeyEvent> event;
QString surroundingText;
int surroundingAnchor = -1;
int surroundingCursor = -1;
};
class ProcessKeyWatcher : public QDBusPendingCallWatcher {
Q_OBJECT
public:
ProcessKeyWatcher(const QKeyEvent &event, QWidget *window,
const QDBusPendingCall &call, QObject *parent = 0)
: QDBusPendingCallWatcher(call, parent),
event_(QKeyEvent::createExtendedKeyEvent(
event.type(), event.key(), event.modifiers(),
event.nativeScanCode(), event.nativeVirtualKey(),
event.nativeModifiers(), event.text(), event.isAutoRepeat(),
event.count())),
window_(window) {}
virtual ~ProcessKeyWatcher() { delete event_; }
QKeyEvent &keyEvent() { return *event_; }
QWidget *window() { return window_.data(); }
private:
QKeyEvent *event_;
QPointer<QWidget> window_;
};
struct XkbContextDeleter {
static inline void cleanup(struct xkb_context *pointer) {
if (pointer)
xkb_context_unref(pointer);
}
};
struct XkbComposeTableDeleter {
static inline void cleanup(struct xkb_compose_table *pointer) {
if (pointer)
xkb_compose_table_unref(pointer);
}
};
struct XkbComposeStateDeleter {
static inline void cleanup(struct xkb_compose_state *pointer) {
if (pointer)
xkb_compose_state_unref(pointer);
}
};
class FcitxQtInputMethodProxy;
class QFcitxInputContext : public QInputContext {
Q_OBJECT
public:
QFcitxInputContext();
virtual ~QFcitxInputContext();
QString identifierName() override;
QString language() override;
void reset() override;
bool isComposing() const override { return false; };
void update() override;
void setFocusWidget(QWidget *w) override;
void widgetDestroyed(QWidget *w) override;
bool filterEvent(const QEvent *event) override;
void mouseHandler(int x, QMouseEvent *event) override;
public Q_SLOTS:
void cursorRectChanged();
void commitString(const QString &str);
void updateFormattedPreedit(const FcitxQtFormattedPreeditList &preeditList,
int cursorPos);
void deleteSurroundingText(int offset, unsigned int nchar);
void forwardKey(unsigned int keyval, unsigned int state, bool type);
void createInputContextFinished(const QByteArray &uuid);
void serverSideFocusOut();
void cleanUp();
void windowDestroyed(QObject *object);
private:
bool processCompose(unsigned int keyval, unsigned int state,
bool isRelaese);
QKeyEvent *createKeyEvent(unsigned int keyval, unsigned int state,
bool isRelaese, const QKeyEvent *event);
void addCapability(FcitxQtICData &data, quint64 capability,
bool forceUpdate = false) {
auto newcaps = data.capability | capability;
if (data.capability != newcaps || forceUpdate) {
data.capability = newcaps;
updateCapability(data);
}
}
void removeCapability(FcitxQtICData &data, quint64 capability,
bool forceUpdate = false) {
auto newcaps = data.capability & (~capability);
if (data.capability != newcaps || forceUpdate) {
data.capability = newcaps;
updateCapability(data);
}
}
void updateCapability(const FcitxQtICData &data);
void commitPreedit(QPointer<QWidget> input = qApp->focusWidget());
void createICData(QWidget *w);
FcitxQtInputContextProxy *validIC();
FcitxQtInputContextProxy *validICByWindow(QWidget *window);
bool filterEventFallback(unsigned int keyval, unsigned int keycode,
unsigned int state, bool isRelaese);
FcitxQtWatcher *watcher_;
QString preedit_;
QString commitPreedit_;
FcitxQtFormattedPreeditList preeditList_;
int cursorPos_;
bool useSurroundingText_;
bool syncMode_;
std::unordered_map<QWidget *, FcitxQtICData> icMap_;
QPointer<QWidget> lastWindow_;
bool destroy_;
QScopedPointer<struct xkb_context, XkbContextDeleter> xkbContext_;
QScopedPointer<struct xkb_compose_table, XkbComposeTableDeleter>
xkbComposeTable_;
QScopedPointer<struct xkb_compose_state, XkbComposeStateDeleter>
xkbComposeState_;
private Q_SLOTS:
void processKeyEventFinished(QDBusPendingCallWatcher *);
};
} // namespace fcitx
#endif // QFCITXINPUTCONTEXT_H
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