com.google.gwt.user.client.ui.impl.TextBoxImpl.java Source code

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Here is the source code for com.google.gwt.user.client.ui.impl.TextBoxImpl.java

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/*
 * Copyright 2006 Google Inc.
 * 
 * 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.gwt.user.client.ui.impl;

import com.google.gwt.dom.client.Element;

/**
 * Implementation class used by {@link com.google.gwt.user.client.ui.TextBox}.
 */
public class TextBoxImpl {
    public native int getCursorPos(Element elem_multi) /*-{
                                                       var elem = elem_multi.@com.google.gwt.dom.client.Element::remote()();
                                                       // Guard needed for FireFox.
                                                       try {
                                                       return elem.selectionStart;
                                                       } catch (e) {
                                                       return 0;
                                                       }
                                                       }-*/;

    public native int getSelectionLength(Element elem_multi) /*-{
                                                             var elem = elem_multi.@com.google.gwt.dom.client.Element::remote()();
                                                             // Guard needed for FireFox.
                                                             try {
                                                             return elem.selectionEnd - elem.selectionStart;
                                                             } catch (e) {
                                                             return 0;
                                                             }
                                                             }-*/;

    public int getTextAreaCursorPos(Element elem) {
        return getCursorPos(elem);
    }

    public int getTextAreaSelectionLength(Element elem) {
        return getSelectionLength(elem);
    }

    public native void setSelectionRange(Element elem_multi, int pos, int length) /*-{
                                                                                      
                                                                                  var elem = elem_multi.@com.google.gwt.dom.client.Element::remote()();
                                                                                  try {
                                                                                  elem.setSelectionRange(pos, pos + length);
                                                                                  } catch (e) {
                                                                                  // Firefox throws exception if TextBox is not visible, even if attached
                                                                                  }
                                                                                  }-*/;
}