PowerToys/Wox/ResultPanel.xaml.cs

145 lines
4.0 KiB
C#
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using System;
using System.Collections.Generic;
using System.Diagnostics;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
using Wox.Helper;
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using Wox.Infrastructure;
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using Wox.Plugin;
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namespace Wox
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{
public partial class ResultPanel : UserControl
{
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public bool Dirty { get; set; }
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public void AddResults(List<Result> results)
{
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if (Dirty)
{
Dirty = false;
lbResults.Items.Clear();
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}
foreach (var result in results)
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{
int position = GetInsertLocation(result.Score);
lbResults.Items.Insert(position, result);
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}
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gridContainer.Margin = lbResults.Items.Count > 0 ? new Thickness { Top = 8 } : new Thickness { Top = 0 };
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SelectFirst();
}
private int GetInsertLocation(int currentScore)
{
int location = lbResults.Items.Count;
if (lbResults.Items.Count == 0) return 0;
if (currentScore > ((Result)lbResults.Items[0]).Score) return 0;
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for (int index = 1; index < lbResults.Items.Count; index++)
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{
Result next = lbResults.Items[index] as Result;
Result prev = lbResults.Items[index - 1] as Result;
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if (next != null && prev != null)
{
if ((currentScore >= next.Score && currentScore <= prev.Score))
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{
if (currentScore == next.Score)
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{
location = index + 1;
}
else
{
location = index;
}
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}
}
}
return location;
}
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private FrameworkElement FindByName(string name, FrameworkElement root)
{
Stack<FrameworkElement> tree = new Stack<FrameworkElement>();
tree.Push(root);
while (tree.Count > 0)
{
FrameworkElement current = tree.Pop();
if (current.Name == name)
return current;
int count = VisualTreeHelper.GetChildrenCount(current);
for (int i = 0; i < count; ++i)
{
DependencyObject child = VisualTreeHelper.GetChild(current, i);
if (child is FrameworkElement)
tree.Push((FrameworkElement)child);
}
}
return null;
}
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public void SelectNext()
{
int index = lbResults.SelectedIndex;
if (index == lbResults.Items.Count - 1)
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{
index = -1;
}
Select(index + 1);
}
public void SelectPrev()
{
int index = lbResults.SelectedIndex;
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if (index == 0)
{
index = lbResults.Items.Count;
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}
Select(index - 1);
}
private void SelectFirst()
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{
Select(0);
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}
private void Select(int index)
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{
if (index >= 0 && index < lbResults.Items.Count)
{
lbResults.SelectedItem = lbResults.Items.GetItemAt(index);
}
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}
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public Result AcceptSelect()
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{
int index = lbResults.SelectedIndex;
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if (index < 0) return null;
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return lbResults.Items[index] as Result;
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}
public ResultPanel()
{
InitializeComponent();
}
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public void Clear()
{
lbResults.Items.Clear();
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gridContainer.Margin = new Thickness { Top = 0 };
}
private void lbResults_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.AddedItems.Count > 0)
{
lbResults.ScrollIntoView(e.AddedItems[0]);
}
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}
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}
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}