// Copyright 2012 Google Inc. All Rights Reserved.
//
// 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 com.google.collide.client.editor.input;
import com.google.collide.client.editor.ViewportModel;
import com.google.collide.client.util.input.KeyCodeMap;
import com.google.collide.client.util.input.ModifierKeys;
import org.waveprotocol.wave.client.common.util.SignalEvent;
/**
* An input scheme to support the editor's read-only mode.
*/
public class ReadOnlyScheme extends InputScheme {
private class ReadOnlyInputMode extends InputMode {
@Override
public void setup() {
addShortcut(new EventShortcut(ModifierKeys.ACTION, 'a') {
@Override
public boolean event(InputScheme scheme, SignalEvent event) {
getInputController().getSelection().selectAll();
return true;
}
});
}
@Override
public void teardown() {
}
@Override
public boolean onDefaultInput(SignalEvent event, char character) {
int key = KeyCodeMap.getKeyFromEvent(event);
ViewportModel viewport = getInputController().getViewportModel();
switch (key) {
case KeyCodeMap.ARROW_LEFT:
case KeyCodeMap.ARROW_RIGHT:
viewport.shiftHorizontally(key == KeyCodeMap.ARROW_RIGHT);
return true;
case KeyCodeMap.ARROW_UP:
case KeyCodeMap.ARROW_DOWN:
viewport.shiftVertically(key == KeyCodeMap.ARROW_DOWN, false);
return true;
case KeyCodeMap.PAGE_UP:
case KeyCodeMap.PAGE_DOWN:
viewport.shiftVertically(key == KeyCodeMap.PAGE_DOWN, true);
return true;
case KeyCodeMap.HOME:
case KeyCodeMap.END:
viewport.jumpTo(key == KeyCodeMap.END);
return true;
}
return false;
}
@Override
public boolean onDefaultPaste(SignalEvent signal, String text) {
return false;
}
}
public ReadOnlyScheme(InputController input) {
super(input);
addMode(1, new ReadOnlyInputMode());
}
@Override
public void setup() {
switchMode(1);
}
}