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Fix scroll issues

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This commit is contained in:
qianlifeng 2013-12-27 00:39:07 +08:00
parent ece5cc7dd5
commit bdf77b2782
3 changed files with 66 additions and 11 deletions
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27
WinAlfred/PluginLoader/PythonPluginWrapper.cs
View File

@ -11,7 +11,7 @@ namespace WinAlfred.PluginLoader
private PluginMetadata metadata;
[DllImport("PyWinAlfred.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
private extern static IntPtr ExecPython(string directory, string file,string method,string para);
private extern static IntPtr ExecPython(string directory, string file, string method, string para);
[DllImport("PyWinAlfred.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
private extern static void InitPythonEnv();
@ -22,16 +22,25 @@ namespace WinAlfred.PluginLoader
public List<Result> Query(Query query)
{
string s = Marshal.PtrToStringAnsi(ExecPython(metadata.PluginDirecotry, metadata.ExecuteFileName.Replace(".py", ""),"query",query.RawQuery));
List<PythonResult> o = JsonConvert.DeserializeObject<List<PythonResult>>(s);
List<Result> r = new List<Result>();
foreach (PythonResult pythonResult in o)
try
{
PythonResult ps = pythonResult;
ps.Action = () => ExecPython(metadata.PluginDirecotry, metadata.ExecuteFileName.Replace(".py", ""),ps.ActionName,ps.ActionPara);
r.Add(ps);
string s = Marshal.PtrToStringAnsi(ExecPython(metadata.PluginDirecotry, metadata.ExecuteFileName.Replace(".py", ""), "query", query.RawQuery));
List<PythonResult> o = JsonConvert.DeserializeObject<List<PythonResult>>(s);
List<Result> r = new List<Result>();
foreach (PythonResult pythonResult in o)
{
PythonResult ps = pythonResult;
ps.Action = () => ExecPython(metadata.PluginDirecotry, metadata.ExecuteFileName.Replace(".py", ""), ps.ActionName, ps.ActionPara);
r.Add(ps);
}
return r;
}
return r;
catch (Exception)
{
throw;
}
}
public void Init()

2
WinAlfred/ResultPanel.xaml
View File

@ -5,7 +5,7 @@
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<ScrollViewer MaxHeight="300" VerticalScrollBarVisibility="Auto">
<ScrollViewer x:Name="sv" MaxHeight="300" VerticalScrollBarVisibility="Auto">
<StackPanel x:Name="pnlContainer">
</StackPanel>

48
WinAlfred/ResultPanel.xaml.cs
View File

@ -1,4 +1,5 @@
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using WinAlfred.Plugin;
@ -89,9 +90,54 @@ namespace WinAlfred
{
if (pnlContainer.Children.Count > 0)
{
int oldIndex = GetCurrentSelectedResultIndex();
UnSelectAll();
var resultItemControl = pnlContainer.Children[index] as ResultItem;
if (resultItemControl != null) resultItemControl.Selected = true;
if (resultItemControl != null)
{
resultItemControl.Selected = true;
double scrollPosition = 0;
Point newItemBottomPoint = resultItemControl.TranslatePoint(new Point(0, resultItemControl.ActualHeight), pnlContainer);
if (index == 0)
{
sv.ScrollToTop();
return;
}
if (index == pnlContainer.Children.Count - 1)
{
sv.ScrollToBottom();
return;
}
if (index < oldIndex)
{
//move up and old item is at the top of the scroll view
if ( newItemBottomPoint.Y - sv.VerticalOffset == 0)
{
scrollPosition = sv.VerticalOffset - resultItemControl.ActualHeight;
}
else
{
return;
}
}
else
{
//move down and old item is at the bottom of scroll view
if (sv.ActualHeight + sv.VerticalOffset == newItemBottomPoint.Y - resultItemControl.ActualHeight)
{
scrollPosition = newItemBottomPoint.Y - sv.ActualHeight;
}
else
{
return;
}
}
sv.ScrollToVerticalOffset(scrollPosition);
}
}
}