com.allen_sauer.gwt.log.client.util.DOMUtil.java Source code

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/*
 * Copyright 2009 Fred Sauer
 *
 * 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.allen_sauer.gwt.log.client.util;

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.JavaScriptException;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.user.client.Window;

import com.allen_sauer.gwt.log.client.util.impl.DOMUtilImpl;

/**
 * Provides DOM utility methods.
 */
public class DOMUtil {
    // CHECKSTYLE_JAVADOC_OFF
    private static DOMUtilImpl impl;

    static {
        impl = (DOMUtilImpl) GWT.create(DOMUtilImpl.class);
    }

    /**
     * Adjust line breaks within in the provided title for optimal readability and display length for
     * the current user agent.
     * 
     * @param title the desired raw text
     * @return formatted and escaped text
     */
    public static String adjustTitleLineBreaks(String title) {
        return impl.adjustTitleLineBreaks(title);
    }

    public static void reportFatalAndThrowRuntimeException(String msg) throws RuntimeException {
        msg = "gwt-dnd warning: " + msg;
        Window.alert(msg);
        throw new RuntimeException(msg);
    }

    public static native void windowClear(JavaScriptObject w)
    /*-{
      w.document.body.innerHTML = "";
    }-*/;

    public static native void windowClose(JavaScriptObject window)
    /*-{
      window.close();
    }-*/;

    public static native JavaScriptObject windowOpen(String features)
    /*-{
      var w = $wnd.open("", "_blank", features);
      $wnd.focus();
      return w;
    }-*/;

    public static native String windowReadyState(JavaScriptObject w)
    /*-{
      return w.document.readyState;
    }-*/;

    public static native String windowSetTitle(JavaScriptObject w, String title)
    /*-{
      w.document.title = title;
    }-*/;

    public static native void windowWrapAndAppendHTML(JavaScriptObject w, String html) throws JavaScriptException
    /*-{
      var div = w.document.createElement('div');
      div.innerHTML = html;
      w.document.body.appendChild(div);
    }-*/;
}