Android: Add minimal Java editing support

Indentation for blocks '{'. '}' and completion for keywords.

TODO: "New File" is missing,
TODO: probably needs some tweaks to the indentation.
Task-number: QTCREATORBUG-11220

Change-Id: I758b3815e47d1427d39c0248eb16e39ffb7a29fb
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>

src/plugins/android/javacompletionassistprovider.cpp

@@ -0,0 +1,120 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** 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.
+**
+****************************************************************************/
+
+#include "javacompletionassistprovider.h"
+#include "androidconstants.h"
+
+#include <texteditor/codeassist/keywordscompletionassist.h>
+
+using namespace Android;
+using namespace Android::Internal;
+
+static const char *const keywords[] = {
+    "abstract",
+    "continue",
+    "for",
+    "new",
+    "switch",
+    "assert",
+    "default",
+    "goto",
+    "package",
+    "synchronized",
+    "boolean",
+    "do",
+    "if",
+    "private",
+    "this",
+    "break",
+    "double",
+    "implements",
+    "protected",
+    "throw"
+    "byte",
+    "else",
+    "import",
+    "public",
+    "throws",
+    "case",
+    "enum",
+    "instanceof",
+    "return",
+    "transient",
+    "catch",
+    "extends",
+    "int",
+    "short",
+    "try",
+    "char",
+    "final",
+    "interface",
+    "static",
+    "void",
+    "class",
+    "finally",
+    "long",
+    "strictfp",
+    "volatile",
+    "const",
+    "float",
+    "native",
+    "super",
+    "while",
+    0
+};
+
+JavaCompletionAssistProvider::JavaCompletionAssistProvider()
+{
+}
+
+JavaCompletionAssistProvider::~JavaCompletionAssistProvider()
+{
+
+}
+
+void JavaCompletionAssistProvider::init() const
+{
+    for (uint i = 0; i < sizeof keywords / sizeof keywords[0] - 1; i++)
+        m_keywords.append(QLatin1String(keywords[i]));
+}
+
+bool JavaCompletionAssistProvider::supportsEditor(const Core::Id &editorId) const
+{
+    return editorId == Constants::JAVA_EDITOR_ID;
+}
+
+TextEditor::IAssistProcessor *JavaCompletionAssistProvider::createProcessor() const
+{
+    if (m_keywords.isEmpty())
+        init();
+    TextEditor::Keywords keywords = TextEditor::Keywords(m_keywords,
+                                                         QStringList(),
+                                                         QMap<QString, QStringList>());
+    return new TextEditor::KeywordsCompletionAssistProcessor(keywords);
+}