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index.zulzul<zk>
<window title="News Management" border="normal" width="600px"
viewModel="@id('vm') @init('pkg$.NewsViewModel')">
<vlayout>
<!-- Header -->
<hbox spacing="10px">
<label value="News List"/>
<button label="Add News" onClick="@command('addNews')"/>
</hbox><!-- News List -->
<listbox model="@load(vm.newsList)" selectedItem="@bind(vm.selectedNews)">
<listhead>
<listheader label="Title"/>
<listheader label="Date"/>
<listheader label="Actions"/>
</listhead>
<template name="model" var="news">
<listitem>
<listcell label="@load(news.title)"/>
<listcell label="@load(news.date)"/>
<listcell>
<button label="Edit" onClick="@command('editNews', newsItem=news)"/>
<button label="Delete" onClick="@command('deleteNews', newsId=news.id)"/>
</listcell>
</listitem>
</template>
</listbox>
<!-- Add/Edit News Window -->
<window id="newsWin" visible="@load(vm.showNewsWindow)" title="@load(vm.newsWindowLabel)" border="normal" width="400px">
<vlayout>
<hlayout spacing="10px">
<label value="Title:"/>
<textbox value="@bind(vm.currentNews.title)" width="300px"/>
</hlayout>
<hlayout spacing="10px">
<label value="Date:"/>
<datebox value="@bind(vm.currentNews.date)"/>
</hlayout>
<hlayout spacing="10px">
<label value="Content:"/>
<textbox value="@bind(vm.currentNews.content)" multiline="true" height="200px" width="300px"/>
</hlayout>
<hlayout spacing="10px" style="text-align:center">
<button label="Save" onClick="@command('saveNews')"/>
<button label="Cancel" onClick="@command('cancelNews')"/>
</hlayout>
</vlayout>
</window>
</vlayout>
</window>
</zk>
NewsViewModel.javajavaimport org.zkoss.zk.ui.*;
import org.zkoss.zk.ui.event.*;
import org.zkoss.zk.ui.util.*;
import org.zkoss.zk.ui.ext.*;
import org.zkoss.zk.au.*;
import org.zkoss.zk.au.out.*;
import org.zkoss.zul.*;
import org.zkoss.bind.annotation.*;
import java.util.*;
public class NewsViewModel {
private List<News> newsList = new ArrayList<>();
private News selectedNews;
private News currentNews;
private boolean showNewsWindow = false;
private String newsWindowLabel;
@Init
public void init() {
// Initialize the news list
// This should be replaced with actual data retrieval logic
newsList.add(new News(1, "Title 1", new Date(), "Content 1"));
newsList.add(new News(2, "Title 2", new Date(), "Content 2"));
// ... more news items ...
}
@Command
@NotifyChange("*")
public void addNews() {
currentNews = new News();
showNewsWindow = true;
newsWindowLabel = "Add News";
}
@Command
@NotifyChange("*")
public void editNews(@BindingParam("newsItem") News news) {
currentNews = news;
showNewsWindow = true;
newsWindowLabel = "Edit News";
}
@Command
@NotifyChange("*")
public void deleteNews(@BindingParam("newsId") int newsId) {
newsList.removeIf(news -> news.getId() == newsId);
}
@Command
@NotifyChange("*")
public void saveNews() {
if (!newsList.contains(currentNews)) {
newsList.add(currentNews);
}
showNewsWindow = false;
}
@Command
@NotifyChange("*")
public void cancelNews() {
showNewsWindow = false;
}
// Getters and Setters
public List<News> getNewsList() {
return newsList;
}
public News getSelectedNews() {
return selectedNews;
}
public void setSelectedNews(News selectedNews) {
this.selectedNews = selectedNews;
}
public News getCurrentNews() {
return currentNews;
}
public boolean isShowNewsWindow() {
return showNewsWindow;
}
public String getNewsWindowLabel() {
return newsWindowLabel;
}
public static class News {
private int id;
private String title;
private Date date;
private String content;
// Default constructor
public News() {
}
// Parameterized constructor
public News(int id, String title, Date date, String content) {
this.id = id;
this.title = title;
this.date = date;
this.content = content;
}
// Getters and Setters
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
// Additional methods like equals, hashCode, and toString can be added as needed
}
}