/**
* Copyright 2013 Apigee Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package io.apigee.trireme.node10.modules;
import io.apigee.trireme.core.InternalNodeModule;
import io.apigee.trireme.core.NodeRuntime;
import io.apigee.trireme.core.Utils;
import io.apigee.trireme.core.internal.ScriptRunner;
import io.apigee.trireme.core.internal.handles.AbstractHandle;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Function;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.ScriptableObject;
import org.mozilla.javascript.annotations.JSConstructor;
import org.mozilla.javascript.annotations.JSFunction;
import org.mozilla.javascript.annotations.JSGetter;
import java.lang.reflect.InvocationTargetException;
import static io.apigee.trireme.core.ArgUtils.*;
/**
* This class is used for TTY stuff, because it wraps the Java console.
*/
public class ConsoleWrap
implements InternalNodeModule
{
public static final String MODULE_NAME = "console_wrap";
/**
* We don't know the actual window size in Java, so guess:
*/
public static final int DEFAULT_WINDOW_COLS = 80;
public static final int DEFAULT_WINDOW_ROWS = 24;
@Override
public String getModuleName()
{
return MODULE_NAME;
}
@Override
public Scriptable registerExports(Context cx, Scriptable scope, NodeRuntime runtime)
throws InvocationTargetException, IllegalAccessException, InstantiationException
{
Scriptable exports = cx.newObject(scope);
exports.setPrototype(scope);
exports.setParentScope(null);
ScriptableObject.defineClass(exports, JavaStreamWrap.StreamWrapImpl.class, false, true);
ScriptableObject.defineClass(exports, ConsoleWrapImpl.class, false, true);
return exports;
}
public static class ConsoleWrapImpl
extends JavaStreamWrap.StreamWrapImpl
{
public static final String CLASS_NAME = "Console";
@Override
public String getClassName() {
return CLASS_NAME;
}
protected ConsoleWrapImpl(AbstractHandle handle, ScriptRunner runtime)
{
super(handle, runtime);
}
@SuppressWarnings("unused")
public ConsoleWrapImpl()
{
}
@JSConstructor
public static Object construct(Context cx, Object[] args, Function ctorObj, boolean inNewExpr)
{
if (!inNewExpr) {
return cx.newObject(ctorObj, CLASS_NAME);
}
ScriptRunner runtime = (ScriptRunner)cx.getThreadLocal(ScriptRunner.RUNNER);
AbstractHandle handle = objArg(args, 0, AbstractHandle.class, true);
return new ConsoleWrapImpl(handle, runtime);
}
@JSGetter("isTTY")
@SuppressWarnings("unused")
public boolean isTty() {
return true;
}
@JSFunction
@SuppressWarnings("unused")
public static void setRawMode(Context cx, Scriptable thisObj, Object[] args, Function func)
{
// There is actually no such thing as raw mode in Java
throw Utils.makeError(cx, thisObj, "Raw mode is not supported in Trireme.");
}
/**
* Do the best we can to determine the window size, and otherwise return 80x24. LINES and COLUMNS
* works well on many platforms...
*/
@JSFunction
@SuppressWarnings("unused")
public static void getWindowSize(Context cx, Scriptable thisObj, Object[] args, Function func)
{
Scriptable s = objArg(args, 0, Scriptable.class, true);
int columns = DEFAULT_WINDOW_COLS;
String cols = System.getenv("COLUMNS");
if (cols != null) {
try {
columns = Integer.parseInt(cols);
} catch (NumberFormatException ignore) {
}
}
s.put(0, s, columns);
int rows = DEFAULT_WINDOW_ROWS;
String rowStr = System.getenv("LINES");
if (rowStr != null) {
try {
rows = Integer.parseInt(rowStr);
} catch (NumberFormatException ignore) {
}
}
s.put(1, s, rows);
}
}
}