com.gsr.myschool.front.client.web.application.inbox.renderer.InboxCell.java Source code

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Here is the source code for com.gsr.myschool.front.client.web.application.inbox.renderer.InboxCell.java

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/**
 * Copyright 2012 Nuvola 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.gsr.myschool.front.client.web.application.inbox.renderer;

import com.google.gwt.cell.client.AbstractCell;
import com.google.gwt.cell.client.ActionCell.Delegate;
import com.google.gwt.cell.client.ValueUpdater;
import com.google.gwt.dom.client.BrowserEvents;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.uibinder.client.UiRenderer;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
import com.gsr.myschool.common.client.proxy.InboxProxy;
import com.gsr.myschool.common.shared.type.InboxMessageStatus;
import com.gsr.myschool.front.client.resource.FrontResources;

public class InboxCell extends AbstractCell<InboxProxy> {
    public interface Renderer extends UiRenderer {
        void render(SafeHtmlBuilder sb, String subject, String content, String date, String status);
    }

    private final Renderer uiRenderer;
    private final FrontResources resources;
    private Delegate<InboxProxy> showDetails;

    private final DateTimeFormat dateFormat;

    @Inject
    public InboxCell(final Renderer uiRenderer, final FrontResources resources,
            @Assisted Delegate<InboxProxy> showDetails) {
        super(BrowserEvents.CLICK, BrowserEvents.DBLCLICK);

        this.uiRenderer = uiRenderer;
        this.resources = resources;
        this.showDetails = showDetails;

        dateFormat = DateTimeFormat.getFormat("dd/MM/yyyy '' HH:mm");
    }

    @Override
    public void render(Context context, InboxProxy value, SafeHtmlBuilder safeHtmlBuilder) {
        String msgStyle = value.getMsgStatus() == InboxMessageStatus.READ ? resources.frontStyleCss().msgRead()
                : resources.frontStyleCss().msgUnread();
        String content = value.getRawContent();
        if (content.length() > 100) {
            content = content.substring(0, 100) + "...";
        }
        uiRenderer.render(safeHtmlBuilder, value.getSubject(), content, dateFormat.format(value.getMsgDate()),
                msgStyle);
    }

    @Override
    public void onBrowserEvent(Context context, Element parent, InboxProxy value, NativeEvent event,
            ValueUpdater<InboxProxy> valueUpdater) {
        super.onBrowserEvent(context, parent, value, event, valueUpdater);
        if (value == null) {
            return;
        }
        if (BrowserEvents.DBLCLICK.equals(event.getType())) {
            showDetails.execute(value);
        }
    }
}