001    package org.gwtbootstrap3.client.ui;
002    
003    /*
004     * #%L
005     * GwtBootstrap3
006     * %%
007     * Copyright (C) 2013 GwtBootstrap3
008     * %%
009     * Licensed under the Apache License, Version 2.0 (the "License");
010     * you may not use this file except in compliance with the License.
011     * You may obtain a copy of the License at
012     * 
013     *      http://www.apache.org/licenses/LICENSE-2.0
014     * 
015     * Unless required by applicable law or agreed to in writing, software
016     * distributed under the License is distributed on an "AS IS" BASIS,
017     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018     * See the License for the specific language governing permissions and
019     * limitations under the License.
020     * #L%
021     */
022    
023    import org.gwtbootstrap3.client.ui.base.AbstractTextWidget;
024    import org.gwtbootstrap3.client.ui.base.helper.SourceCodeHelper;
025    import org.gwtbootstrap3.client.ui.constants.Styles;
026    
027    import com.google.gwt.dom.client.Document;
028    
029    /**
030     * Simple {@code <pre>} element for multi-line code blocks.
031     *
032     * @author Sven Jacobs
033     * @see Code
034     */
035    public class Pre extends AbstractTextWidget {
036    
037        public Pre() {
038            super(Document.get().createPreElement());
039        }
040    
041        /**
042         * Sets HTML contents.
043         * <p/>
044         * If HTML contains "\n" it will be replaced by a {@code <br>} element
045         * and "\s" will be replaced by a whitespace.
046         *
047         * @param html HTML contents
048         */
049        @Override
050        public void setHTML(final String html) {
051            getElement().setInnerHTML(SourceCodeHelper.parseCode(html).asString());
052        }
053    
054        /**
055         * Sets a max-height of 350px and provides a y-axis scrollbar
056         *
057         * @param scrollable If true sets a max-height of 350px and provides a y-axis scrollbar
058         */
059        public void setScrollable(final boolean scrollable) {
060            if (scrollable) {
061                addStyleName(Styles.PRE_SCROLLABLE);
062            } else {
063                removeStyleName(Styles.PRE_SCROLLABLE);
064            }
065        }
066    }