WymEditor.java

//
// Copyright 2009 Robin Komiwes, Bruno Verachten, Christophe Cordenier
//
// 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.wooki.mixins;

import java.io.IOException;

import org.apache.tapestry5.Asset;
import org.apache.tapestry5.BindingConstants;
import org.apache.tapestry5.ComponentResources;
import org.apache.tapestry5.Link;
import org.apache.tapestry5.annotations.AfterRender;
import org.apache.tapestry5.annotations.Import;
import org.apache.tapestry5.annotations.InjectContainer;
import org.apache.tapestry5.annotations.OnEvent;
import org.apache.tapestry5.annotations.Parameter;
import org.apache.tapestry5.annotations.Path;
import org.apache.tapestry5.corelib.components.TextArea;
import org.apache.tapestry5.internal.InternalConstants;
import org.apache.tapestry5.ioc.Messages;
import org.apache.tapestry5.ioc.annotations.Inject;
import org.apache.tapestry5.ioc.annotations.Symbol;
import org.apache.tapestry5.json.JSONArray;
import org.apache.tapestry5.json.JSONObject;
import org.apache.tapestry5.services.FormSupport;
import org.apache.tapestry5.services.javascript.JavaScriptSupport;
import org.apache.tapestry5.upload.services.MultipartDecoder;
import org.apache.tapestry5.upload.services.UploadedFile;
import org.apache.tapestry5.util.TextStreamResponse;

import com.wooki.WookiSymbolsConstants;
import com.wooki.services.UploadMediaService;

/**
 * Integrate wymeditor as a mixin to be used with textarea.
 */
@Import(library =
{
        "context:/static/js/jquery.timer.js",
        "context:/static/js/wymeditor/jquery.wymeditor.js",
        "context:/static/js/wymeditor/plugins/fullscreen/jquery.wymeditor.fullscreen.js",
        "context:/static/js/wymeditor/plugins/upload-image-dialog/jquery.wymeditor.upload-image-dialog.js",
        "context:/static/js/wymeditor/plugins/autosave/jquery.wymeditor.autosave.js",
        "context:/static/js/ajaxupload.js" })
public class WymEditor
{

    @Inject
    private UploadMediaService uploadMedia;

    @Inject
    private MultipartDecoder decoder;

    @Inject
    private Messages messages;

    @Inject
    private FormSupport support;

    @Inject
    @Symbol(WookiSymbolsConstants.WOOKI_AUTOSAVE_INTERVAL)
    private int autosaveInterval;

    @Inject
    @Path("context:/static/js/wymeditor/")
    private Asset basePath;

    @Inject
    @Path("context:/static/js/wymeditor/jquery.wymeditor.js")
    private Asset wymPath;

    @Inject
    @Path("context:/static/js/jquery-1.3.2.min.js")
    private Asset jQueryPath;

    @Inject
    @Path("context:/static/img/ajax-loader-min.gif")
    private Asset ajaxLoader;

    @Inject
    private ComponentResources resources;

    @Parameter(defaultPrefix = BindingConstants.ASSET)
    private String wymStyle;

    @Parameter(defaultPrefix = BindingConstants.LITERAL, value = "wooki")
    private String wymSkin;

    @Parameter(defaultPrefix = BindingConstants.LITERAL, value = "wym-autosave")
    private String autosaveStatus;

    @InjectContainer
    private TextArea container;

    @Inject
    private JavaScriptSupport renderSupport;

    @AfterRender
    public void attachWymEditor()
    {

        JSONObject data = new JSONObject();
        data.put("elt", container.getClientId());

        JSONObject params = new JSONObject();
        params.put("logoHtml", "");

        if (wymStyle != null)
        {
            params.put("stylesheet", wymStyle);
        }

        params.put("skin", wymSkin);

        // Set parameter for production mode compatibility
        params.put("basePath", basePath.toClientURL() + "/");
        params.put("wymPath", wymPath.toClientURL());
        params.put("jQueryPath", jQueryPath.toClientURL());
        params.put("ajaxLoader", ajaxLoader.toClientURL());
        params.put("formId", support.getClientId());
        params.put("autosaveInterval", autosaveInterval);
        params.put("autosaveStatus", autosaveStatus);

        Link uploadActionLink = resources.createEventLink("uploadImage");
        params.put("uploadAction", uploadActionLink.toURI());

        // Add activation context
        String activationContext = uploadActionLink
                .getParameterValue(InternalConstants.PAGE_CONTEXT_NAME);
        if (activationContext != null)
        {
            JSONObject uploadDatas = new JSONObject();
            uploadDatas.put(InternalConstants.PAGE_CONTEXT_NAME, activationContext);
            params.put("uploadDatas", uploadDatas);
        }

        data.put("params", params);

        // Use wymeditor
        renderSupport.addInitializerCall("initWymEdit", data);

    }

    /**
     * Upload image.
     * 
     * @return
     */
    @OnEvent(value = "uploadImage")
    public Object uploadFile()
    {
        JSONObject result = new JSONObject();
        JSONArray message = new JSONArray();
        try
        {
            UploadedFile attachment = decoder.getFileUpload("attachment");
            String path = this.uploadMedia.uploadMedia(attachment);
            result.put("error", false);
            result.put("path", path);
            message.put(messages.get("upload-success"));
        }
        catch (IOException ioEx)
        {
            ioEx.printStackTrace();
            result.put("error", true);
            message.put(messages.get("upload-failure"));
        }
        result.put("messages", message);
        return new TextStreamResponse("text/html", result.toString());
    }

}