From 80eb461360eb39657ac21ce8070c02f071884e9a Mon Sep 17 00:00:00 2001
From: Lars Knoll <lars.knoll@nokia.com>
Date: Wed, 22 Jun 2011 10:01:14 +0200
Subject: ibus IM support for the xcb backend
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Test code to check input methods using the ibus backend
used on e.g. ubuntu. The IM code is not very sophisticated,
but enough to test that things are working.

Reviewed-by: Jørgen Lind
---
 src/plugins/platforms/xcb/qxcbintegration.cpp | 17 +++++++++++++++++
 src/plugins/platforms/xcb/qxcbintegration.h   |  4 ++++
 src/plugins/platforms/xcb/qxcbkeyboard.cpp    | 11 +++++++++++
 src/plugins/platforms/xcb/xcb.pro             |  3 +++
 4 files changed, 35 insertions(+)

(limited to 'src/plugins/platforms/xcb')

diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index 984c8afb9d..fcc17b28b2 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -71,6 +71,11 @@
 #include <QtPlatformSupport/private/qeglplatformcontext_p.h>
 #endif
 
+#define XCB_USE_IBUS
+#if defined(XCB_USE_IBUS)
+#include "QtPlatformSupport/qibusplatforminputcontext.h"
+#endif
+
 QXcbIntegration::QXcbIntegration()
     : m_connection(new QXcbConnection), m_printerSupport(new QGenericUnixPrinterSupport)
 {
@@ -79,6 +84,8 @@ QXcbIntegration::QXcbIntegration()
 
     m_fontDatabase = new QGenericUnixFontDatabase();
     m_nativeInterface = new QXcbNativeInterface;
+
+    m_inputContext = 0;
 }
 
 QXcbIntegration::~QXcbIntegration()
@@ -141,6 +148,11 @@ QAbstractEventDispatcher *QXcbIntegration::createEventDispatcher() const
 {
     QAbstractEventDispatcher *eventDispatcher = createUnixEventDispatcher();
     m_connection->setEventDispatcher(eventDispatcher);
+#ifdef XCB_USE_IBUS
+    // A bit hacky to do this here, but we need an eventloop before we can instantiate
+    // the input context.
+    const_cast<QXcbIntegration *>(this)->m_inputContext = new QIBusPlatformInputContext;
+#endif
     return eventDispatcher;
 }
 
@@ -318,3 +330,8 @@ QPlatformDrag *QXcbIntegration::drag() const
 {
     return m_connection->drag();
 }
+
+QPlatformInputContext *QXcbIntegration::inputContext() const
+{
+    return m_inputContext;
+}
diff --git a/src/plugins/platforms/xcb/qxcbintegration.h b/src/plugins/platforms/xcb/qxcbintegration.h
index 1f426ab4e7..a89ffc89c6 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.h
+++ b/src/plugins/platforms/xcb/qxcbintegration.h
@@ -76,6 +76,8 @@ public:
     QPlatformClipboard *clipboard() const;
     QPlatformDrag *drag() const;
 
+    QPlatformInputContext *inputContext() const;
+
 private:
     bool hasOpenGL() const;
     QList<QPlatformScreen *> m_screens;
@@ -84,6 +86,8 @@ private:
     QPlatformFontDatabase *m_fontDatabase;
     QPlatformNativeInterface *m_nativeInterface;
     QPlatformPrinterSupport *m_printerSupport;
+
+    QPlatformInputContext *m_inputContext;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/xcb/qxcbkeyboard.cpp b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
index 5c034252d3..adaed53106 100644
--- a/src/plugins/platforms/xcb/qxcbkeyboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbkeyboard.cpp
@@ -46,8 +46,14 @@
 #include <X11/keysym.h>
 #include <QtGui/QWindowSystemInterface>
 #include <QtCore/QTextCodec>
+#include <private/qguiapplication_p.h>
 #include <stdio.h>
 
+#define XCB_USE_IBUS
+#if defined(XCB_USE_IBUS)
+#include "QtPlatformSupport/qibusplatforminputcontext.h"
+#endif
+
 #ifndef XK_ISO_Left_Tab
 #define XK_ISO_Left_Tab         0xFE20
 #endif
@@ -1023,6 +1029,11 @@ void QXcbKeyboard::handleKeyEvent(QWindow *window, QEvent::Type type, xcb_keycod
 
     QByteArray chars;
     xcb_keysym_t sym = lookupString(window, state, code, type, &chars);
+
+    QIBusPlatformInputContext *ic = static_cast<QIBusPlatformInputContext *>(QGuiApplicationPrivate::platformIntegration()->inputContext());
+    if (ic && ic->x11FilterEvent(sym, code, state, type == QEvent::KeyPress))
+        return;
+
     Qt::KeyboardModifiers modifiers;
     int qtcode = 0;
     int count = chars.count();
diff --git a/src/plugins/platforms/xcb/xcb.pro b/src/plugins/platforms/xcb/xcb.pro
index 33a7494133..4b242428fe 100644
--- a/src/plugins/platforms/xcb/xcb.pro
+++ b/src/plugins/platforms/xcb/xcb.pro
@@ -84,5 +84,8 @@ QMAKE_CXXFLAGS += $$QMAKE_CFLAGS_XCB
 
 CONFIG += qpa/genericunixfontdatabase
 
+QT += dbus
+LIBS += -ldbus-1
+
 target.path += $$[QT_INSTALL_PLUGINS]/platforms
 INSTALLS += target
-- 
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