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• InputHtml.java

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org.apache.myfaces.custom.inputHtml.InputHtml Maven / Gradle / Ivy

/*
 * 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.apache.myfaces.custom.inputHtml;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.myfaces.component.html.ext.HtmlInputText;
import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
import org.apache.myfaces.shared_tomahawk.util._ComponentUtils;

import javax.faces.context.FacesContext;
import javax.faces.el.ValueBinding;

/**
 * HTML Editor using the kupu library.
 * http://kupu.oscom.org/
 *
 * An inline HTML based word processor based on the Kupu library. 
 * 
 * See http://kupu.oscom.org 
 * 
 * Right now, the support is limited to one editor per page 
 * (but you can use tabs to have multiple editors, but only 
 * one rendered at a time). 
 * 
 * Unless otherwise specified, all attributes accept static values or EL expressions.
 *
 * @JSFComponent
 *   name = "t:inputHtml"
 *   tagClass = "org.apache.myfaces.custom.inputHtml.InputHtmlTag"
 *
 * @author Sylvain Vieujot (latest modification by $Author: skitching $)
 * @version $Revision: 673833 $ $Date: 2008-07-03 16:58:05 -0500 (Thu, 03 Jul 2008) $
 */
public class InputHtml extends HtmlInputText {
    public static final String COMPONENT_TYPE = "org.apache.myfaces.InputHtml";

    public static final String DEFAULT_RENDERER_TYPE = "org.apache.myfaces.InputHtml";

    private static final Log log = LogFactory.getLog(HtmlInputText.class);

    private String _fallback;
    private String _type;

    private Boolean _allowEditSource;
    private Boolean _allowExternalLinks;
    private Boolean _addKupuLogo;

    private Boolean _showAllToolBoxes;
    private Boolean _showPropertiesToolBox;
    private Boolean _showLinksToolBox;
    private Boolean _showImagesToolBox;
    private Boolean _showTablesToolBox;
    private Boolean _showCleanupExpressionsToolBox;
    private Boolean _showDebugToolBox;

    public InputHtml() {
        setRendererType(DEFAULT_RENDERER_TYPE);
    }

    public Object saveState(FacesContext context) {
        Object values[] = new Object[4];
        values[0] = super.saveState(context);

        String[] types = new String[2];
        types[0] = _fallback;
        types[1] = _type;

        values[1] = types;

        Boolean toolBarButtons[] = new Boolean[3];
        toolBarButtons[0] = _allowEditSource;
        toolBarButtons[1] = _allowExternalLinks;
        toolBarButtons[2] = _addKupuLogo;

        values[2] = toolBarButtons;

        Boolean toolBoxes[] = new Boolean[7];
        toolBoxes[0] = _showAllToolBoxes;
        toolBoxes[1] = _showPropertiesToolBox;
        toolBoxes[2] = _showLinksToolBox;
        toolBoxes[3] = _showImagesToolBox;
        toolBoxes[4] = _showTablesToolBox;
        toolBoxes[5] = _showCleanupExpressionsToolBox;
        toolBoxes[6] = _showDebugToolBox;

        values[3] = toolBoxes;

        return values;
    }

    public void restoreState(FacesContext context, Object state) {
        Object values[] = (Object[]) state;
        super.restoreState(context, values[0]);

        String[] types = (String[]) values[1];
        _fallback = types[0];
        _type = types[1];

        Boolean[] toolBarButtons = (Boolean[]) values[2];
        _allowEditSource = toolBarButtons[0];
        _allowExternalLinks = toolBarButtons[1];
        _addKupuLogo = toolBarButtons[2];

        Boolean[] toolBoxes = (Boolean[]) values[3];
        _showAllToolBoxes = toolBoxes[0];
        _showPropertiesToolBox = toolBoxes[1];
        _showLinksToolBox = toolBoxes[2];
        _showImagesToolBox = toolBoxes[3];
        _showTablesToolBox = toolBoxes[4];
        _showCleanupExpressionsToolBox = toolBoxes[5];
        _showDebugToolBox = toolBoxes[6];
    }

    /**
     * Use a text area instead of the javascript HTML editor. 
     * 
     * Default is false. Use with caution.
     * 
     * @JSFProperty
     */
    public String getFallback(){
        if (_fallback != null)
            return _fallback;
        ValueBinding vb = getValueBinding("fallback");
        return vb != null ? vb.getValue(getFacesContext()).toString() : "false";
    }
    public void setFallback(String _fallback){
        this._fallback = _fallback;
    }

    /**
     * The type of the value. It can be either fragment for an HTML 
     * fragment (default) or document for a full HTML document, with 
     * head, title, body, ... tags.
     * 
     * @JSFProperty
     */
    public String getType(){
        if (_type != null)
            return _type;
        ValueBinding vb = getValueBinding("type");
        return vb != null ? _ComponentUtils.getStringValue(getFacesContext(), vb) : "fragment";
    }
    public void setType(String _type){
        this._type = _type;
    }
    public boolean isTypeDocument(){
        return getType().equals("document");
    }

    /**
     * Allows the user to edit the HTML source code. Default is true.
     * 
     * @JSFProperty
     */
    public boolean isAllowEditSource(){
           if (_allowEditSource != null)
               return _allowEditSource.booleanValue();
           ValueBinding vb = getValueBinding("allowEditSource");
           return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : true;
    }
    public void setAllowEditSource(boolean allowEditSource){
        this._allowEditSource = Boolean.valueOf(allowEditSource);
    }

    /**
     * Allows the user to insert external links. Default is true.
     * 
     * @JSFProperty
     */
    public boolean isAllowExternalLinks(){
        if (_allowExternalLinks != null)
            return _allowExternalLinks.booleanValue();
        ValueBinding vb = getValueBinding("allowExternalLinks");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : true;
    }
    public void setAllowExternalLinks(boolean allowExternalLinks){
        this._allowExternalLinks = Boolean.valueOf(allowExternalLinks);
    }

    /**
     * Show the Kupu Logo in the buttons bar. Default is true.
     * 
     * @JSFProperty
     */
    public boolean isAddKupuLogo(){
           if (_addKupuLogo != null)
               return _addKupuLogo.booleanValue();
           ValueBinding vb = getValueBinding("addKupuLogo");
           return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : true;
    }
    public void setAddKupuLogo(boolean addKupuLogo){
        this._addKupuLogo = Boolean.valueOf(addKupuLogo);
    }

    /**
     * Shortcut to avoid setting all the showXXToolBox to true. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowAllToolBoxes(){
           if (_showAllToolBoxes != null)
               return _showAllToolBoxes.booleanValue();
        ValueBinding vb = getValueBinding("showAllToolBoxes");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }
    public void setShowAllToolBoxes(boolean showAllToolBoxes){
        this._showAllToolBoxes = Boolean.valueOf(showAllToolBoxes);
    }

    /**
     * Show the Properties tool box next to the text. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowPropertiesToolBox(){
        if( isShowAllToolBoxes() )
            return true;

           if (_showPropertiesToolBox != null)
               return _showPropertiesToolBox.booleanValue();
        ValueBinding vb = getValueBinding("showPropertiesToolBox");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }

    public void setShowPropertiesToolBox(boolean showPropertiesToolBox){
        this._showPropertiesToolBox = Boolean.valueOf(showPropertiesToolBox);
    }

    /**
     * Show the Links tool box next to the text. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowLinksToolBox(){
        if( isShowAllToolBoxes() )
            return true;

           if (_showLinksToolBox != null)
               return _showLinksToolBox.booleanValue();
        ValueBinding vb = getValueBinding("showLinksToolBox");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }
    
    public void setShowLinksToolBox(boolean showLinksToolBox){
        this._showLinksToolBox = Boolean.valueOf(showLinksToolBox);
    }

    /**
     * Show the Images tool box next to the text. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowImagesToolBox(){
        if( isShowAllToolBoxes() )
            return true;

           if (_showImagesToolBox != null)
               return _showImagesToolBox.booleanValue();
        ValueBinding vb = getValueBinding("showImagesToolBox");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }
    public void setShowImagesToolBox(boolean showImagesToolBox){
        this._showImagesToolBox = Boolean.valueOf(showImagesToolBox);
    }

    /**
     * Show the Tables tool box next to the text. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowTablesToolBox(){
        if( isShowAllToolBoxes() )
            return true;

           if (_showTablesToolBox != null)
               return _showTablesToolBox.booleanValue();
        ValueBinding vb = getValueBinding("showTablesToolBox");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }
    public void setShowTablesToolBox(boolean showTablesToolBox){
        this._showTablesToolBox = Boolean.valueOf(showTablesToolBox);
    }

    /**
     * Show the Cleanup Expressions tool box next to the text. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowCleanupExpressionsToolBox(){
        if( isShowAllToolBoxes() )
            return true;

           if (_showCleanupExpressionsToolBox != null)
               return _showCleanupExpressionsToolBox.booleanValue();
        ValueBinding vb = getValueBinding("showCleanupExpressionsToolBox");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }
    public void setShowCleanupExpressionsToolBox(boolean showCleanupExpressionsToolBox){
        this._showCleanupExpressionsToolBox = Boolean.valueOf(showCleanupExpressionsToolBox);
    }

    /**
     * Show the Debug tool box next to the text. Default is false.
     * 
     * @JSFProperty
     */
    public boolean isShowDebugToolBox(){
        if( isShowAllToolBoxes() )
            return true;

           if (_showDebugToolBox != null)
               return _showDebugToolBox.booleanValue();
        ValueBinding vb = getValueBinding("showDebugToolBox");
        return vb != null ? ((Boolean)vb.getValue(getFacesContext())).booleanValue() : false;
    }
    public void setShowDebugToolBox(boolean showTablesToolBox){
        this._showDebugToolBox = Boolean.valueOf(showTablesToolBox);
    }

    public boolean isShowAnyToolBox(){
           return isShowAllToolBoxes()
               || isShowPropertiesToolBox()
               || isShowLinksToolBox()
               || isShowImagesToolBox()
               || isShowTablesToolBox()
               || isShowCleanupExpressionsToolBox()
               || isShowDebugToolBox();
    }

    public String getValueAsHtmlDocument(FacesContext context){
        String val = RendererUtils.getStringValue(context, this);
        if( isHtmlDocument( val ) )
            return val;

        return ""+(val==null ? "" : val)+"";
    }

    private static boolean isHtmlDocument(String text){
        if( text == null )
            return false;

        if( text.indexOf("")!=-1 || text.indexOf("")!=-1 || text.indexOf("") )
            return fragment.substring(0, fragment.length()-6);
        return fragment;
    }
    
    String getHtmlBody(String html){
        html = html.trim();
        if( html.length() == 0 )
            return "";

        String lcText = html.toLowerCase();
        int textLength = lcText.length();
        int bodyStartIndex = -1;
        while(bodyStartIndex < textLength){
            bodyStartIndex++;
            bodyStartIndex = lcText.indexOf("' )
                break;

            if( c!=' ' && c!='\t' )
                continue;

            bodyStartIndex = lcText.indexOf('>', bodyStartIndex);
            break;
        }
        bodyStartIndex++;

        int bodyEndIndex = lcText.lastIndexOf("")-1;
        
        if( bodyStartIndex<0 || bodyEndIndex<0
           || bodyStartIndex > bodyEndIndex
           || bodyStartIndex>=textLength || bodyEndIndex>=textLength ){

            if( lcText.indexOf("")!=-1 || lcText.indexOf("")!=-1 )
                return "";
            
            int htmlStartIndex = lcText.indexOf("");
            int htmlEndIndex = lcText.indexOf("");
            if( htmlStartIndex != -1 && htmlEndIndex > htmlStartIndex )
                return html.substring(htmlStartIndex+6, htmlEndIndex);
            
            if( isTypeDocument() )
                log.warn("Couldn't extract HTML body from :\n"+html);
            return html.trim();
        }

        return html.substring(bodyStartIndex, bodyEndIndex+1).trim();
    }
}