1 files changed, 149 insertions, 0 deletions
diff --git a/src/org/connectbot/service/KeyEventUtil.java b/src/org/connectbot/service/KeyEventUtil.java
new file mode 100644
index 0000000..1362afa
--- /dev/null
+++ b/src/org/connectbot/service/KeyEventUtil.java
@@ -0,0 +1,149 @@
+/*
+ * ConnectBot: simple, powerful, open-source SSH client for Android
+ * Copyright 2014 Torne Wuff
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.connectbot.service;
+
+import android.annotation.TargetApi;
+import android.os.Build;
+import android.view.KeyEvent;
+
+public class KeyEventUtil {
+	static final char CONTROL_LIMIT = ' ';
+	static final char PRINTABLE_LIMIT = '\u007e';
+	static final char[] HEX_DIGITS = new char[] {
+		'0', '1', '2', '3', '4', '5', '6', '7',
+		'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
+	};
+
+	static String printableRepresentation(String source) {
+		if (source == null)
+			return null;
+
+		final StringBuilder sb = new StringBuilder();
+		final int limit = source.length();
+		char[] hexbuf = null;
+		int pointer = 0;
+
+		sb.append('"');
+		while (pointer < limit) {
+			int ch = source.charAt(pointer++);
+			switch (ch) {
+			case '\0':
+				sb.append("\\0");
+				break;
+			case '\t':
+				sb.append("\\t");
+				break;
+			case '\n':
+				sb.append("\\n");
+				break;
+			case '\r':
+				sb.append("\\r");
+				break;
+			case '\"':
+				sb.append("\\\"");
+				break;
+			case '\\':
+				sb.append("\\\\");
+				break;
+			default:
+				if (CONTROL_LIMIT <= ch && ch <= PRINTABLE_LIMIT) {
+					sb.append((char) ch);
+				} else {
+					sb.append("\\u");
+					if (hexbuf == null)
+						hexbuf = new char[4];
+					for (int offs = 4; offs > 0; ) {
+						hexbuf[--offs] = HEX_DIGITS[ch & 0xf];
+						ch >>>= 4;
+					}
+					sb.append(hexbuf, 0, 4);
+				}
+			}
+		}
+		return sb.append('"').toString();
+	}
+
+	private static class ClassCompat {
+		private static final ClassCompat INSTANCE;
+		static {
+			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
+				INSTANCE = new HCMR2AndNewer();
+			} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {
+				INSTANCE = new HCMR1AndNewer();
+			} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
+				INSTANCE = new GingerbreadAndNewer();
+			} else {
+				INSTANCE = new ClassCompat();
+			}
+		}
+
+		private ClassCompat() {
+		}
+
+		public static void appendExtras(StringBuilder d, int keyCode, KeyEvent event) {
+			INSTANCE.appendForApi(d, keyCode, event);
+		}
+
+		protected void appendForApi(StringBuilder d, int keyCode, KeyEvent event) {
+		}
+
+		@TargetApi(9)
+		private static class GingerbreadAndNewer extends ClassCompat {
+			@Override
+			protected void appendForApi(StringBuilder d, int keyCode, KeyEvent event) {
+				super.appendForApi(d, keyCode, event);
+				d.append(", source=").append(event.getSource());
+
+			}
+		}
+		@TargetApi(12)
+		private static class HCMR1AndNewer extends GingerbreadAndNewer {
+			protected void appendForApi(StringBuilder d, int keyCode, KeyEvent event) {
+				super.appendForApi(d, keyCode, event);
+				d.append(", keyCodeToString=").append(KeyEvent.keyCodeToString(keyCode));
+			}
+		}
+
+		@TargetApi(13)
+		private static class HCMR2AndNewer extends HCMR1AndNewer {
+			@Override
+			protected void appendForApi(StringBuilder d, int keyCode, KeyEvent event) {
+				super.appendForApi(d, keyCode, event);
+				d.append(", modifiers=").append(Integer.toHexString(event.getModifiers()));
+			}
+		}
+	}
+
+	public static String describeKeyEvent(int keyCode, KeyEvent event) {
+		StringBuilder d = new StringBuilder();
+		d.append("keyCode=").append(keyCode);
+		d.append(", event.toString=").append(event.toString());
+		d.append(", action=").append(event.getAction());
+		d.append(", characters=").append(printableRepresentation(event.getCharacters()));
+		d.append(", deviceId=").append(event.getDeviceId());
+		d.append(", displayLabel=").append((int) event.getDisplayLabel());
+		d.append(", flags=0x").append(Integer.toHexString(event.getFlags()));
+		d.append(", printingKey=").append(event.isPrintingKey());
+		d.append(", keyCode=").append(event.getKeyCode());
+		d.append(", metaState=0x").append(Integer.toHexString(event.getMetaState()));
+		d.append(", number=").append((int) event.getNumber());
+		d.append(", scanCode=").append(event.getScanCode());
+		d.append(", unicodeChar=").append(event.getUnicodeChar());
+		ClassCompat.appendExtras(d, keyCode, event);
+		return d.toString();
+	}
+}