Make access to xkbcommon_workaround.h more generic

It makes more sense to keep this workaround header together with the other
libxkbcommon files for a better access point since it's used by several *.pro
files.

Change-Id: I63d4eb58f6e7f3852834e41c4b6e058a2c962233
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>

3 files changed, 11 insertions, 106 deletions

diff --git a/src/plugins/platforminputcontexts/compose/compose.pro b/src/plugins/platforminputcontexts/compose/compose.pro
index 1bfd46ebca..2490a4ffbe 100644
--- a/src/plugins/platforminputcontexts/compose/compose.pro
+++ b/src/plugins/platforminputcontexts/compose/compose.pro
@@ -15,7 +15,6 @@ SOURCES += $$PWD/main.cpp \
 
 HEADERS += $$PWD/qcomposeplatforminputcontext.h \
            $$PWD/generator/qtablegenerator.h \
-           $$PWD/xkbcommon_workaround.h \
 
 # libxkbcommon
 contains(QT_CONFIG, xkbcommon-qt): {
@@ -23,6 +22,10 @@ contains(QT_CONFIG, xkbcommon-qt): {
 } else {
     LIBS += $$QMAKE_LIBS_XKBCOMMON
     QMAKE_CXXFLAGS += $$QMAKE_CFLAGS_XKBCOMMON
+    equals(QMAKE_VERSION_XKBCOMMON, "0.2.0") {
+        DEFINES += XKBCOMMON_0_2_0
+        INCLUDEPATH += ../../../3rdparty/xkbcommon/xkbcommon/
+    }
 }
 
 OTHER_FILES += $$PWD/compose.json
diff --git a/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp b/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
index 400f7aece8..f746207cc0 100644
--- a/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
+++ b/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
@@ -49,7 +49,10 @@
 #include <QtCore/QString>
 
 #include <xkbcommon/xkbcommon.h>
+
+#ifdef XKBCOMMON_0_2_0
 #include <xkbcommon_workaround.h>
+#endif
 
 //#define DEBUG_GENERATOR
 
@@ -258,6 +261,7 @@ ushort TableGenerator::keysymToUtf8(quint32 sym)
     int bytes;
     chars.resize(8);
 
+#ifdef XKBCOMMON_0_2_0
     if (needWorkaround(sym)) {
         quint32 codepoint;
         if (sym == XKB_KEY_KP_Space)
@@ -269,6 +273,9 @@ ushort TableGenerator::keysymToUtf8(quint32 sym)
     } else {
         bytes = xkb_keysym_to_utf8(sym, chars.data(), chars.size());
     }
+#else
+    bytes = xkb_keysym_to_utf8(sym, chars.data(), chars.size());
+#endif
 
     if (bytes == -1)
         qWarning("TableGenerator::keysymToUtf8 - buffer too small");
diff --git a/src/plugins/platforminputcontexts/compose/xkbcommon_workaround.h b/src/plugins/platforminputcontexts/compose/xkbcommon_workaround.h
deleted file mode 100644
index 58ce143978..0000000000
--- a/src/plugins/platforminputcontexts/compose/xkbcommon_workaround.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.  For licensing terms and
-** conditions see http://qt.digia.com/licensing.  For further information
-** use the contact form at http://qt.digia.com/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights.  These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef XKBCOMMON_WORKAROUND_H
-#define XKBCOMMON_WORKAROUND_H
-
-// Function utf32_to_utf8() is borrowed from the libxkbcommon library,
-// file keysym-utf.c. The workaround should be removed once the fix from
-// https://bugs.freedesktop.org/show_bug.cgi?id=56780 gets released.
-static int utf32_to_utf8(uint32_t unichar, char *buffer)
-{
-    int count, shift, length;
-    uint8_t head;
-
-    if (unichar <= 0x007f) {
-        buffer[0] = unichar;
-        buffer[1] = '\0';
-        return 2;
-    }
-    else if (unichar <= 0x07FF) {
-        length = 2;
-        head = 0xc0;
-    }
-    else if (unichar <= 0xffff) {
-        length = 3;
-        head = 0xe0;
-    }
-    else if (unichar <= 0x1fffff) {
-        length = 4;
-        head = 0xf0;
-    }
-    else if (unichar <= 0x3ffffff) {
-        length = 5;
-        head = 0xf8;
-    }
-    else {
-        length = 6;
-        head = 0xfc;
-    }
-
-    for (count = length - 1, shift = 0; count > 0; count--, shift += 6)
-        buffer[count] = 0x80 | ((unichar >> shift) & 0x3f);
-
-    buffer[0] = head | ((unichar >> shift) & 0x3f);
-    buffer[length] = '\0';
-
-    return length + 1;
-}
-
-static bool needWorkaround(uint32_t sym)
-{
-    /* patch encoding botch */
-    if (sym == XKB_KEY_KP_Space)
-        return true;
-
-    /* special keysyms */
-    if ((sym >= XKB_KEY_BackSpace && sym <= XKB_KEY_Clear) ||
-        (sym >= XKB_KEY_KP_Multiply && sym <= XKB_KEY_KP_9) ||
-        sym == XKB_KEY_Return || sym == XKB_KEY_Escape ||
-        sym == XKB_KEY_Delete || sym == XKB_KEY_KP_Tab ||
-        sym == XKB_KEY_KP_Enter || sym == XKB_KEY_KP_Equal)
-        return true;
-
-    return false;
-}
-
-#endif // XKBCOMMON_WORKAROUND_H