/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.waveprotocol.wave.client.editor.toolbar;
import org.waveprotocol.wave.client.editor.EditorContext;
import org.waveprotocol.wave.client.editor.content.ContentElement;
import org.waveprotocol.wave.client.editor.content.ContentNode;
import org.waveprotocol.wave.client.editor.content.paragraph.Paragraph;
import org.waveprotocol.wave.client.widget.toolbar.buttons.ToolbarClickButton;
import org.waveprotocol.wave.model.document.indexed.LocationMapper;
import org.waveprotocol.wave.model.document.util.Range;
/**
* A {@link ToolbarClickButton.Listener} which applies a styling to a
* paragraph using {@link Paragraph#traverse}.
* <p>
* See {@link org.waveprotocol.wave.client.wavepanel.impl.toolbar.EditToolbar}
* for example uses.
*
* @author kalman@google.com (Benjamin Kalman)
*/
public class ParagraphTraversalController implements ToolbarClickButton.Listener {
private final EditorContext editor;
private final ContentElement.Action action;
public ParagraphTraversalController(EditorContext editor, ContentElement.Action action) {
this.editor = editor;
this.action = action;
}
@Override
public void onClicked() {
final Range range = editor.getSelectionHelper().getOrderedSelectionRange();
if (range != null) {
editor.undoableSequence(new Runnable(){
@Override public void run() {
LocationMapper<ContentNode> locator = editor.getDocument();
Paragraph.traverse(locator, range.getStart(), range.getEnd(), action);
}
});
}
}
}