using System.Collections.Generic;
using System.Windows.Controls;
using WinAlfred.Plugin;
namespace WinAlfred
{
///
/// Result.xaml 的交互逻辑
///
public partial class ResultPanel : UserControl
{
public delegate void ResultItemsChanged();
public event ResultItemsChanged resultItemChangedEvent;
protected virtual void OnResultItemChangedEvent()
{
ResultItemsChanged handler = resultItemChangedEvent;
if (handler != null) handler();
}
public void AddResults(List results)
{
pnlContainer.Children.Clear();
foreach (Result result in results)
{
ResultItem control = new ResultItem(result);
pnlContainer.Children.Add(control);
}
pnlContainer.UpdateLayout();
double resultItemHeight = 0;
if (pnlContainer.Children.Count > 0)
{
var resultItem = pnlContainer.Children[0] as ResultItem;
if (resultItem != null)
resultItemHeight = resultItem.ActualHeight;
}
Height = pnlContainer.Height = results.Count * resultItemHeight;
OnResultItemChangedEvent();
}
private int GetCurrentSelectedResultIndex()
{
for (int i = 0; i < pnlContainer.Children.Count; i++)
{
var resultItemControl = pnlContainer.Children[i] as ResultItem;
if (resultItemControl != null && resultItemControl.Selected)
{
return i;
}
}
return -1;
}
public void UnSelectAll()
{
for (int i = 0; i < pnlContainer.Children.Count; i++)
{
var resultItemControl = pnlContainer.Children[i] as ResultItem;
if (resultItemControl != null && resultItemControl.Selected)
{
resultItemControl.Selected = false;
}
}
}
public void SelectNext()
{
int index = GetCurrentSelectedResultIndex();
if (index == pnlContainer.Children.Count - 1)
{
index = -1;
}
Select(index + 1);
}
public void SelectPrev()
{
int index = GetCurrentSelectedResultIndex();
if (index == 0)
{
index = pnlContainer.Children.Count;
}
Select(index - 1);
}
private void Select(int index)
{
if (pnlContainer.Children.Count > 0)
{
UnSelectAll();
var resultItemControl = pnlContainer.Children[index] as ResultItem;
if (resultItemControl != null) resultItemControl.Selected = true;
}
}
public void SelectFirst()
{
Select(0);
}
public void AcceptSelect()
{
int index = GetCurrentSelectedResultIndex();
var resultItemControl = pnlContainer.Children[index] as ResultItem;
if (resultItemControl != null)
{
resultItemControl.Result.Action();
}
}
public ResultPanel()
{
InitializeComponent();
}
}
}