com.seanchenxi.serenity.client.activity.ArticleActivity.java Source code

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Here is the source code for com.seanchenxi.serenity.client.activity.ArticleActivity.java

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/*
 * Copyright 2013 Xi CHEN
 *
 * 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.seanchenxi.serenity.client.activity;

import com.google.gwt.activity.shared.AbstractActivity;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.RunAsyncCallback;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.AcceptsOneWidget;
import com.google.gwt.user.client.ui.Image;
import com.seanchenxi.gwt.logging.api.Log;
import com.seanchenxi.serenity.client.SerenityFactory;
import com.seanchenxi.serenity.client.SerenityUtil;
import com.seanchenxi.serenity.client.event.ArticleCloseEvent;
import com.seanchenxi.serenity.client.place.SerenityPlaceUtil;
import com.seanchenxi.serenity.client.view.ArticleView;
import com.seanchenxi.serenity.client.view.DiscussionListView;
import com.seanchenxi.serenity.client.view.RespondView;
import com.seanchenxi.gwt.ui.widget.MessageBox;
import com.seanchenxi.gwt.wordpress.json.WPJsonAPI;
import com.seanchenxi.gwt.wordpress.json.api.model.Category;
import com.seanchenxi.gwt.wordpress.json.api.model.Comment;
import com.seanchenxi.gwt.wordpress.json.api.model.CommentStatus;
import com.seanchenxi.gwt.wordpress.json.api.model.Post;
import com.seanchenxi.gwt.wordpress.json.api.model.PostCommentStatus;
import com.seanchenxi.gwt.wordpress.json.api.model.Tag;

public class ArticleActivity extends AbstractActivity implements ArticleView.Presenter, RespondView.Presenter {

    private String articleSlug;
    private SerenityFactory clientFactory;

    private ArticleView view;
    private DiscussionListView discussionListView;

    public ArticleActivity(String articleSlug, SerenityFactory clientFactory) {
        this.articleSlug = articleSlug;
        this.clientFactory = clientFactory;
    }

    @Override
    public void start(final AcceptsOneWidget panel, EventBus eventBus) {
        GWT.runAsync(ArticleView.class, new RunAsyncCallback() {
            @Override
            public void onFailure(Throwable throwable) {
                Log.severe("Error while fetching article view", throwable);
            }

            @Override
            public void onSuccess() {
                fetchContentAndShow(panel);
            }
        });
    }

    private void fetchContentAndShow(final AcceptsOneWidget panel) {
        WPJsonAPI.get().getCoreService().getPost(articleSlug, new AsyncCallback<Post>() {
            @Override
            public void onSuccess(Post result) {
                showView(result, panel);
            }

            @Override
            public void onFailure(Throwable caught) {
                showError();
            }
        });
    }

    private void showError() {
        // TODO Auto-generated method stub
    }

    private void showView(Post post, AcceptsOneWidget panel) {
        view = clientFactory.getArticleView();
        view.bindPresenter(this);
        view.clearContent();
        view.setArticleId(post.getId());
        view.setTitle(post.getTitle());
        view.setDateString(SerenityUtil.toDateString(post.getCreatedDate()));
        view.setContent(post.getContent());
        //Show categories
        for (Category cat : post.getCategories()) {
            String anchorHref = SerenityPlaceUtil.getCategoryAnchor(cat.getSlug(), 0);
            view.addCategory(anchorHref, cat.getTitle());
        }
        //Show tags
        for (Tag tag : post.getTags()) {
            String anchorHref = SerenityPlaceUtil.getTagAnchor(tag.getSlug(), 0);
            view.addTag(anchorHref, tag.getTitle());
        }
        // Show comments
        boolean commentOpened = PostCommentStatus.OPEN.equals(post.getCommentStatus());
        int discussionCount = post.getComments().size();
        if (discussionCount > 1 || commentOpened) {
            discussionListView = clientFactory.getDiscussionListView();
            discussionListView.intView(discussionCount, commentOpened);
            for (Comment cmt : post.getComments()) {
                Image.prefetch(cmt.getGravatarURL()); // prefetch gravatar  
                discussionListView.addDiscussion(false, cmt.getId(), cmt.getGravatarURL(), cmt.getName(),
                        cmt.getURL(), cmt.getContent(), cmt.getDate(), cmt.getParentId());
            }
            // check and show respond view
            if (commentOpened) {
                RespondView respondView = clientFactory.getRespondView();
                respondView.reset();
                respondView.setArticleId(post.getId());
                respondView.bindPresenter(ArticleActivity.this);
                discussionListView.setRespondView(respondView);
            }
            view.setCommentsCount(discussionCount);
            view.setDiscussionListView(discussionListView);
        }

        panel.setWidget(view);
    }

    @Override
    public void reply(int articleId, String name, String email, String url, String content, int discussionId) {
        WPJsonAPI.get().getRespondService().submitComment(articleId, name, email, url, content, discussionId,
                new AsyncCallback<Comment>() {

                    @Override
                    public void onSuccess(Comment result) {
                        String content = result.getContent();
                        discussionListView.addDiscussion(result.getStatus().equals(CommentStatus.PENDING),
                                result.getId(), result.getGravatarURL(), result.getName(), result.getURL(), content,
                                result.getDate(), result.getParentId());
                    }

                    @Override
                    public void onFailure(Throwable caught) {
                        MessageBox.alert("Submit Comment Error",
                                "I'm so sorry that, your comment submit is rejected. However, the author will be notified for this.",
                                null);
                        Log.severe("[ArticleActivity] SubmitComment onFailure", caught);
                    }
                });
    }

    @Override
    public void cancel(int articleId, int discussionId) {
        discussionListView.updateResponseViewPosition(discussionId);
    }

    @Override
    public void closeView() {
        clientFactory.getEventBus().fireEvent(new ArticleCloseEvent(articleSlug));
    }

}