com.cubusmail.gwtui.client.panels.AttachmentPanel.java Source code

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Here is the source code for com.cubusmail.gwtui.client.panels.AttachmentPanel.java

Source

/* AttachmentPanel.java
    
   Copyright (c) 2009 Juergen Schlierf, All Rights Reserved
       
   This file is part of Cubusmail (http://code.google.com/p/cubusmail/).
       
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 3 of the License, or (at your option) any later version.
       
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
       
   You should have received a copy of the GNU Lesser General Public
   License along with Cubusmail. If not, see <http://www.gnu.org/licenses/>.
       
 */
package com.cubusmail.gwtui.client.panels;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.MouseListenerAdapter;
import com.google.gwt.user.client.ui.Widget;
import com.gwtext.client.widgets.ToolTip;
import com.gwtext.client.widgets.menu.Menu;
import com.gwtext.client.widgets.menu.MenuItem;

import com.cubusmail.gwtui.client.actions.message.DownloadAttachmentAction;
import com.cubusmail.gwtui.client.actions.message.ViewAttachmentAction;
import com.cubusmail.gwtui.client.model.GWTAttachment;
import com.cubusmail.gwtui.client.services.ServiceProvider;
import com.cubusmail.gwtui.client.util.ImageProvider;
import com.cubusmail.gwtui.client.util.UIFactory;
import com.cubusmail.gwtui.client.widgets.ImageHyperlink;

/**
 * Panel for mail attachments.
 * 
 * @author Juergen Schlierf
 */
public class AttachmentPanel extends Composite {

    private Menu contextMenu;

    private DownloadAttachmentAction downloadAttachmentAction;
    private ViewAttachmentAction viewAttachmentAction;

    // Context menu items
    private MenuItem downloadItem;
    private MenuItem viewItem;

    /**
     * @param title
     */
    public AttachmentPanel(GWTAttachment attachment) {

        super();

        FlowPanel panel = new FlowPanel();
        initWidget(panel);
        DOM.setStyleAttribute(panel.getElement(), "whiteSpace", "nowrap");
        DOM.setStyleAttribute(getElement(), "whiteSpace", "nowrap");

        ImageHyperlink link = new ImageHyperlink(
                new Image(GWT.getHostPageBaseURL() + ImageProvider.MSG_ATTACHMENT));
        link.addLeftButtonListener(new MainLinkLeftButtonListener());
        link.addRightButtonListener(new MainLinkRightButtonListener());
        panel.add(link);

        ImageHyperlink link2 = new ImageHyperlink();
        link2.setText(attachment.getFileName());
        link2.addLeftButtonListener(new MainLinkLeftButtonListener());
        link2.addRightButtonListener(new MainLinkRightButtonListener());
        panel.add(link2);

        panel.add(new HTML("&nbsp;(" + attachment.getSizeText() + ")&nbsp;"));
        if (attachment.isPreview()) {
            ToolTip tip = new ToolTip();
            String url = ServiceProvider.getRetrieveImageServletUrl(attachment.getMessageId(),
                    attachment.getIndex(), true);
            tip.setHtml("<img src=\"" + url + "\"/>");
            tip.setWidth(300);
            tip.setHeight(200);
            tip.applyTo(this.getElement());
        }
        ImageHyperlink downloadLink = new ImageHyperlink(
                new Image(GWT.getHostPageBaseURL() + ImageProvider.MSG_DOWNLOAD));
        downloadLink.addLeftButtonListener(new DownloadLeftButtonListener());
        panel.add(downloadLink);
        panel.add(new HTML("&nbsp;&nbsp;&nbsp;"));

        this.downloadAttachmentAction = new DownloadAttachmentAction(attachment);
        this.viewAttachmentAction = new ViewAttachmentAction(attachment);

        this.contextMenu = new Menu();
        this.downloadItem = UIFactory.createMenuItem(this.downloadAttachmentAction);
        this.contextMenu.addItem(this.downloadItem);
        this.viewItem = UIFactory.createMenuItem(this.viewAttachmentAction);
        this.contextMenu.addItem(this.viewItem);
    }

    private class MainLinkLeftButtonListener extends MouseListenerAdapter {

        @Override
        public void onMouseDown(Widget sender, int x, int y) {

            viewAttachmentAction.execute();
        }
    }

    private class MainLinkRightButtonListener extends MouseListenerAdapter {

        @Override
        public void onMouseDown(Widget sender, int x, int y) {

            contextMenu.showAt(sender.getAbsoluteLeft() + x + 10, sender.getAbsoluteTop() + y);
        }
    }

    private class DownloadLeftButtonListener extends MouseListenerAdapter {

        @Override
        public void onMouseDown(Widget sender, int x, int y) {

            downloadAttachmentAction.execute();
        }
    }
}