/// <summary>
/// 移除 TabItem 方法
/// </summary>
/// <param name="item"></param>
public virtual Task Remove(TabItem item)
{
var index = _items.IndexOf(item);
_items.Remove(item);
var activeItem = _items.FirstOrDefault(i => i.IsActive);
if (activeItem == null)
{
// 删除的 TabItem 是当前 Tab
if (index < _items.Count)
{
// 查找后面的 Tab
activeItem = _items[index];
}
else
{
// 查找前面的 Tab
activeItem = _items.LastOrDefault();
}
if (activeItem != null)
{
activeItem.SetActive(true);
}
}
TabContent?.Render();
return(Task.CompletedTask);
}
/// <summary>
/// 设置指定 TabItem 为激活状态
/// </summary>
/// <param name="item"></param>
public virtual Task ActiveTab(TabItem item)
{
_items.ForEach(i => i.SetActive(false));
item.SetActive(true);
TabHeader?.Render();
TabContent?.Render();
return(Task.CompletedTask);
}
/// <summary>
/// 点击 TabItem 时回调此方法
/// </summary>
/// <param name="item"></param>
protected virtual void OnTabClick(TabItem item)
{
foreach (var tab in Items)
{
var isActive = tab.Text == item.Text;
tab.SetActive(isActive);
}
TabContent?.Render(item);
}
/// <summary>
/// 添加 TabItem 方法
/// </summary>
/// <param name="item"></param>
public virtual Task Add(TabItem item)
{
var check = _items.Contains(item);
if (item.IsActive || !check)
{
_items.ForEach(i => i.SetActive(false));
}
if (!check)
{
_items.Add(item);
item.SetActive(true);
}
TabHeader?.Render();
TabContent?.Render();
return(Task.CompletedTask);
}
/// <summary>
/// 移除 TabItem 方法
/// </summary>
/// <param name="item"></param>
public virtual void Remove(TabItem item)
{
_items.Remove(item);
var activeItem = _items.FirstOrDefault(i => i.IsActive);
if (activeItem == null)
{
activeItem = _items.LastOrDefault();
if (activeItem != null)
{
activeItem.SetActive(true);
OnTabClick(activeItem);
}
else
{
// no TabItem
TabContent?.Clear();
}
}
}
/// <summary>
/// 点击下一个标签页时回调此方法
/// </summary>
protected virtual void ClickNextTab()
{
var item = Items.FirstOrDefault(i => i.IsActive);
if (item != null)
{
var index = _items.IndexOf(item);
if (index < _items.Count)
{
item.SetActive(false);
index++;
if (index + 1 > _items.Count)
{
index = 0;
}
item = Items.ElementAt(index);
item.SetActive(true);
TabContent?.Render();
}
}
}
/// <summary>
/// 点击上一个标签页时回调此方法
/// </summary>
protected virtual void ClickPrevTab()
{
var item = Items.FirstOrDefault(i => i.IsActive);
if (item != null)
{
var index = _items.IndexOf(item);
if (index > -1)
{
item.SetActive(false);
index--;
if (index < 0)
{
index = _items.Count - 1;
}
item = Items.ElementAt(index);
item.SetActive(true);
TabContent?.Render();
}
}
}
/// <summary>
/// 点击 TabItem 时回调此方法
/// </summary>
protected virtual Task OnClickTab()
{
TabContent?.Render();
return(Task.CompletedTask);
}
/// <summary>
/// 点击 TabItem 时回调此方法
/// </summary>
protected virtual async Task OnClickTabItem(TabItem item)
{
TabContent?.Render();
await OnClickTab.Invoke(item);
}
