Finish animation and PDF viewer, still need refinement

QuickLook.Native.Shell32/QuickLook.Native.Shell32.vcxproj

@@ -15,7 +15,7 @@
     <ProjectGuid>{D31EE321-C2B0-4984-B749-736F7DE509F1}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>QuickLookShell32Helper</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0.15063.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
     <ProjectName>QuickLook.Native.Shell32</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

QuickLook.Native.Shell32/Shell32.cpp

@@ -47,17 +47,19 @@ void Shell32::GetCurrentSelectionBuffer(PWCHAR buffer)
 	wcscpy_s(pos - 1, 1, L"");
 }
 
-void Shell32::SaveSelectedFromExplorer() {
+void Shell32::SaveSelectedFromExplorer()
+{
 	CoInitialize(nullptr);
 
 	CComPtr<IShellWindows> psw;
-	HRESULT ret=psw.CoCreateInstance(CLSID_ShellWindows);
+	HRESULT ret = psw.CoCreateInstance(CLSID_ShellWindows);
 
 	auto hwndFGW = GetForegroundWindow();
 
 	auto fFound = FALSE;
 
-	for (int i = 0; !fFound; i++) {
+	for (int i = 0; !fFound; i++)
+	{
 		VARIANT vi;
 		V_VT(&vi) = VT_I4;
 		V_I4(&vi) = i;
@@ -67,13 +69,16 @@ void Shell32::SaveSelectedFromExplorer() {
 		if (SUCCEEDED(psw->Item(vi, &pdisp)))
 		{
 			CComPtr<IWebBrowserApp> pwba;
-			if (SUCCEEDED(pdisp->QueryInterface(IID_IWebBrowserApp, reinterpret_cast<void**>(&pwba)))) {
+			if (SUCCEEDED(pdisp->QueryInterface(IID_IWebBrowserApp, reinterpret_cast<void**>(&pwba))))
+			{
 				HWND hwndWBA;
-				if (SUCCEEDED(pwba->get_HWND(reinterpret_cast<LONG_PTR*>(&hwndWBA))) && hwndWBA == hwndFGW) {
+				if (SUCCEEDED(pwba->get_HWND(reinterpret_cast<LONG_PTR*>(&hwndWBA))) && hwndWBA == hwndFGW)
+				{
 					fFound = TRUE;
 
 					CComPtr<IDispatch> ppdisp;
-					if (SUCCEEDED(pwba->get_Document(&ppdisp))) {
+					if (SUCCEEDED(pwba->get_Document(&ppdisp)))
+					{
 						CComPtr<IShellFolderViewDual2> pshvd;
 						if (SUCCEEDED(ppdisp->QueryInterface(IID_IShellFolderViewDual2, reinterpret_cast<void**>(&pshvd))))
 						{
@@ -120,7 +125,7 @@ CComQIPtr<IWebBrowser2> Shell32::AttachDesktopShellWindow()
 
 	if (SUCCEEDED(psw.CoCreateInstance(CLSID_ShellWindows)))
 	{
-		VARIANT pvarLoc = { VT_EMPTY };
+		VARIANT pvarLoc = {VT_EMPTY};
 		long phwnd;
 		psw->FindWindowSW(&pvarLoc, &pvarLoc, SWC_DESKTOP, &phwnd, SWFO_NEEDDISPATCH, reinterpret_cast<IDispatch**>(&pdispOut));
 	}
@@ -135,10 +140,10 @@ void Shell32::SaveSelectedFromDesktop()
 		return;
 
 	CComQIPtr<IServiceProvider> psp(pWebBrowser2);
-	CComPtr<IShellBrowser>      psb;
+	CComPtr<IShellBrowser> psb;
-	CComPtr<IShellView>         psv;
+	CComPtr<IShellView> psv;
-	CComPtr<IFolderView>        pfv;
+	CComPtr<IFolderView> pfv;
-	CComPtr<IPersistFolder2>    ppf2;
+	CComPtr<IPersistFolder2> ppf2;
 
 	if (!psp) return;
 
@@ -164,7 +169,8 @@ void Shell32::SaveSelectedFromDesktop()
 	}
 }
 
-void Shell32::vectorFromDataObject(CComPtr<IDataObject> dao) {
+void Shell32::vectorFromDataObject(CComPtr<IDataObject> dao)
+{
 	FORMATETC formatetc;
 	STGMEDIUM medium;
 

QuickLook.Native.Shell32/Shell32.h

@@ -26,4 +26,3 @@ private:
 	static CComQIPtr<IWebBrowser2> AttachDesktopShellWindow();
 	static void vectorFromDataObject(CComPtr<IDataObject> dao);
 };
-

QuickLook.Native.Shell32/dllmain.cpp

@@ -2,7 +2,7 @@
 #include "stdafx.h"
 #include "Shell32.h"
 
-BOOL APIENTRY DllMain(HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved)
+BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
 {
 	switch (ul_reason_for_call)
 	{
@@ -15,4 +15,3 @@ BOOL APIENTRY DllMain(HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReser
 	}
 	return TRUE;
 }
-

QuickLook.Native.Shell32/stdafx.h

@@ -12,7 +12,6 @@
 #include <windows.h>
 
 
-
 // TODO: reference additional headers your program requires here
 #include<atlcomcli.h>
 #include<Exdisp.h>

QuickLook.Plugin.PDFViewer/Class1.cs

@@ -1,52 +1,40 @@
-using System;
+using System.Linq;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
 using System.Text;
-using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Media;
-using System.Windows.Threading;
 using MoonPdfLib;
+using QuickLook.ExtensionMethods;
 
 namespace QuickLook.Plugin.PDFViewer
 {
-    public class Class1:IViewer
+    public class Class1 : IViewer
     {
-        public bool CanView(string path, byte[] sample)
+        public PluginType Type => PluginType.ByExtension | PluginType.ByContent;
+
+        public string[] SupportExtensions => new[] {".pdf"};
+
+        public bool CheckSupportByContent(byte[] sample)
         {
-            if (String.IsNullOrEmpty(path))
+            return Encoding.ASCII.GetString(sample.Take(4).ToArray()) == "%PDF";
-                return false;
-            
-            if (Path.GetExtension(path).ToLower() == ".pdf")
-                return true;
-
-            if (Encoding.ASCII.GetString(sample.Take(4).ToArray()) == "%PDF")
-                return true;
-
-            return false;
         }
 
         public void View(string path, ViewContentContainer container)
         {
-            MoonPdfPanel pdfPanel = new MoonPdfPanel
+            var pdfPanel = new MoonPdfPanel
             {
                 ViewType = ViewType.SinglePage,
                 PageRowDisplay = PageRowDisplayType.ContinuousPageRows,
-                PageMargin = new System.Windows.Thickness(0, 2, 4, 2),
+                PageMargin = new Thickness(0, 2, 4, 2),
                 Background = new SolidColorBrush(Colors.LightGray)
             };
-
             container.SetContent(pdfPanel);
 
-            Task.Delay(200).ContinueWith(t => container.Dispatcher.Invoke(() => pdfPanel.OpenFile(path)));
+            container.Dispatcher.Delay(100, o => pdfPanel.OpenFile(path));
-
+            //container.Dispatcher.Delay(200, o => pdfPanel.ZoomToWidth());
-            Task.Delay(400).ContinueWith(t => container.Dispatcher.Invoke(() => pdfPanel.ZoomToWidth()));
         }
 
         public void Close()
         {
-            return;
         }
     }
 }

QuickLook.Plugin.PDFViewer/Properties/AssemblyInfo.cs

@@ -1,5 +1,4 @@
 using System.Reflection;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 // General Information about an assembly is controlled through the following

QuickLook.Plugin.PDFViewer/QuickLook.Plugin.PDFViewer.csproj

@@ -20,6 +20,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <PlatformTarget>x86</PlatformTarget>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>

QuickLook.Plugin.PDFViewer/packages.config

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
+
 <packages>
   <package id="MoonPdfLib-x86" version="0.3.0" targetFramework="net452" />
 </packages>

QuickLook.sln

@@ -14,46 +14,20 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "QuickLook.Plugin.PDFViewer"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x64 = Debug|x64
 		Debug|x86 = Debug|x86
-		Release|Any CPU = Release|Any CPU
-		Release|x64 = Release|x64
 		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Debug|x64.Build.0 = Debug|Any CPU
 		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Debug|x86.Build.0 = Debug|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Release|Any CPU.Build.0 = Release|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Release|x64.ActiveCfg = Release|Any CPU
-		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Release|x64.Build.0 = Release|Any CPU
 		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Release|x86.ActiveCfg = Release|Any CPU
 		{8B4A9CE5-67B5-4A94-81CB-3771F688FDEB}.Release|x86.Build.0 = Release|Any CPU
-		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Debug|Any CPU.ActiveCfg = Debug|Win32
-		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Debug|Any CPU.Build.0 = Debug|Win32
-		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Debug|x64.ActiveCfg = Debug|Win32
 		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Debug|x86.ActiveCfg = Debug|Win32
 		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Debug|x86.Build.0 = Debug|Win32
-		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Release|Any CPU.ActiveCfg = Release|Win32
-		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Release|Any CPU.Build.0 = Release|Win32
-		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Release|x64.ActiveCfg = Release|Win32
 		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Release|x86.ActiveCfg = Release|Win32
 		{D31EE321-C2B0-4984-B749-736F7DE509F1}.Release|x86.Build.0 = Release|Win32
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Debug|x64.Build.0 = Debug|Any CPU
 		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Debug|x86.ActiveCfg = Debug|Any CPU
 		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Debug|x86.Build.0 = Debug|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Release|Any CPU.Build.0 = Release|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Release|x64.ActiveCfg = Release|Any CPU
-		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Release|x64.Build.0 = Release|Any CPU
 		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Release|x86.ActiveCfg = Release|Any CPU
 		{A82AC69C-EDF5-4F0D-8CBD-8E5E3C06E64D}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection

QuickLook/App.config

@@ -1,6 +1,7 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
+
 <configuration>
-    <startup> 
+  <startup>
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
-    </startup>
+  </startup>
 </configuration>

QuickLook/App.xaml

@@ -2,7 +2,8 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:local="clr-namespace:QuickLook"
-             Startup="Application_Startup">
+             Startup="Application_Startup"
+             ShutdownMode="OnExplicitShutdown">
     <Application.Resources>
 
     </Application.Resources>

QuickLook/App.xaml.cs

@@ -1,19 +1,11 @@
-using System;
+using System.IO;
-using System.Collections.Generic;
-using System.Configuration;
-using System.Data;
-using System.IO;
-using System.Linq;
 using System.Reflection;
-using System.Threading.Tasks;
 using System.Windows;
-using QuickLook.Plugin;
-using QuickLook.Utilities;
 
 namespace QuickLook
 {
     /// <summary>
-    /// Interaction logic for App.xaml
+    ///     Interaction logic for App.xaml
     /// </summary>
     public partial class App : Application
     {

QuickLook/BackgroundListener.cs

@@ -1,5 +1,6 @@
-using System.Text;
+using System;
-using System.Threading;
+using System.Text;
+using System.Threading.Tasks;
 using System.Windows.Forms;
 using QuickLook.Utilities;
 
@@ -18,16 +19,20 @@ namespace QuickLook
 
         private void HotkeyEventHandler(object sender, KeyEventArgs e)
         {
-            string[] paths;
+            var paths = new string[0];
 
             // communicate with COM in a separate thread
-            var tCom = new Thread(() => paths = GetCurrentSelection());
+            Task.Run(() => paths = GetCurrentSelection()).Wait();
 
-            tCom.Start();
+            var ddd = PathToPluginMatcher.FindMatch(paths);
-            tCom.Join();
 
             var mw = new MainWindow();
+
+            ddd.View(paths[0], mw.ViewContentContainer);
+
             mw.Show();
+
+            mw.ShowFinishLoadingAnimation(TimeSpan.FromMilliseconds(200));
         }
 
         private void InstallHook(KeyEventHandler handler)

QuickLook/ExtensionMethods/DispatcherExtensions.cs

@@ -4,7 +4,7 @@ using System.Windows.Threading;
 
 namespace QuickLook.ExtensionMethods
 {
-    internal static class DispatcherExtensions
+    public static class DispatcherExtensions
     {
         public static void Delay(this Dispatcher disp, int delayMs,
             Action<object> action, object parm = null)

QuickLook/MainWindow.xaml

@@ -9,21 +9,61 @@
     xmlns:plugin="clr-namespace:QuickLook.Plugin"
     mc:Ignorable="d" x:Class="QuickLook.MainWindow" x:Name="mainWindow" AllowsTransparency="True" WindowStyle="None"
     UseLayoutRounding="True"
-    Topmost="True" d:DesignWidth="624" d:DesignHeight="700" Width="624" Height="700" WindowStartupLocation="CenterScreen"
+    Topmost="True" d:DesignWidth="624" d:DesignHeight="700"
+    WindowStartupLocation="CenterScreen"
     x:ClassModifier="internal">
     <Window.Background>
         <SolidColorBrush Color="#00FFFFFF" />
     </Window.Background>
     <Grid Name="WindowContainer">
         <Grid.Background>
-            <SolidColorBrush Color="#AAB0B0B0" />
+            <SolidColorBrush Color="#FFFFFFFF" />
         </Grid.Background>
-        <Grid Name="LoadingIcon" Height="50" Width="50" HorizontalAlignment="Center" VerticalAlignment="Center" >
+        <Grid>
-            <fa:ImageAwesome Icon="CircleOutlineNotch" Spin="True" SpinDuration="2" />
+            <Grid>
+                <plugin:ViewContentContainer x:Name="ViewContentContainer" Width="624" Height="700" />
+            </Grid>
+            <DockPanel Name="Titlebar" Height="40" VerticalAlignment="Top" Opacity="0">
+                <DockPanel.Background>
+                    <SolidColorBrush Color="#FFFFFFFF" />
+                </DockPanel.Background>
+                <DockPanel.Style>
+                    <Style TargetType="{x:Type DockPanel}">
+                        <Style.Triggers>
+                            <Trigger Property="IsMouseOver" Value="True">
+                                <Trigger.EnterActions>
+                                    <BeginStoryboard>
+                                        <Storyboard>
+                                            <DoubleAnimation Duration="0:0:0.1" Storyboard.TargetProperty="Opacity"
+                                                             To="1" />
+                                        </Storyboard>
+                                    </BeginStoryboard>
+                                </Trigger.EnterActions>
+                                <Trigger.ExitActions>
+                                    <BeginStoryboard>
+                                        <Storyboard>
+                                            <DoubleAnimation Duration="0:0:0.6" Storyboard.TargetProperty="Opacity"
+                                                             To="0" />
+                                        </Storyboard>
+                                    </BeginStoryboard>
+                                </Trigger.ExitActions>
+                            </Trigger>
+                        </Style.Triggers>
+                    </Style>
+                </DockPanel.Style>
+                <fa:ImageAwesome DockPanel.Dock="Right" Name="Close" Icon="WindowClose" Height="20" Margin="10,0"
+                                 Cursor="Hand" MouseLeftButtonUp="Close_MouseLeftButtonUp" />
+                <Label Content="Filename placeholder" FontSize="16" HorizontalContentAlignment="Center"
+                       VerticalContentAlignment="Center" />
+            </DockPanel>
         </Grid>
-        <Grid Name="ContentContainer" Width="624" Height="700">
+        <Grid Name="LoadingIconLayer">
-            <plugin:ViewContentContainer x:Name="ViewContentContainer"/>
+            <Grid.Background>
+                <SolidColorBrush Color="#FFFFFFFF" />
+            </Grid.Background>
+            <Grid Name="LoadingIcon" Height="50" Width="50" HorizontalAlignment="Center" VerticalAlignment="Center">
+                <fa:ImageAwesome Icon="CircleOutlineNotch" Spin="True" SpinDuration="2" />
+            </Grid>
         </Grid>
-        <Button Content="Button" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click" />
     </Grid>
 </Window>

QuickLook/MainWindow.xaml.cs

@@ -1,35 +1,14 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Runtime.InteropServices;
-using System.Runtime.Remoting.Channels;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Data;
-using System.Windows.Documents;
-using System.Windows.Forms;
 using System.Windows.Input;
-using System.Windows.Interop;
-using System.Windows.Media;
 using System.Windows.Media.Animation;
-using System.Windows.Media.Imaging;
-using System.Windows.Navigation;
-using System.Windows.Shapes;
 using System.Windows.Threading;
 using QuickLook.ExtensionMethods;
-using QuickLook.Plugin;
-using QuickLook.Utilities;
-using MessageBox = System.Windows.MessageBox;
-using Path = System.IO.Path;
 
 namespace QuickLook
 {
     /// <summary>
-    /// Interaction logic for MainWindow.xaml
+    ///     Interaction logic for MainWindow.xaml
     /// </summary>
     internal partial class MainWindow : Window
     {
@@ -39,46 +18,83 @@ namespace QuickLook
 
             WindowContainer.Width = LoadingIcon.Width;
             WindowContainer.Height = LoadingIcon.Height;
-            ContentContainer.Visibility = Visibility.Hidden;
+            ViewContentContainer.Opacity = 0;
         }
 
-        private void ZoomToPreferedSize()
+        internal new void Show()
         {
-            Storyboard sb = new Storyboard { };
+            Height = ViewContentContainer.Height;
-            ParallelTimeline ptl = new ParallelTimeline();
+            Width = ViewContentContainer.Width;
 
-            DoubleAnimation animationWidth = new DoubleAnimation
+            base.Show();
+        }
+
+        internal void ShowFinishLoadingAnimation(TimeSpan delay = new TimeSpan())
+        {
+            var speed = 200;
+
+            var sb = new Storyboard();
+            var ptl = new ParallelTimeline {BeginTime = delay};
+
+            var aWidth = new DoubleAnimation
             {
                 From = WindowContainer.Width,
-                To = ContentContainer.Width,
+                To = ViewContentContainer.Width,
-                Duration = TimeSpan.FromSeconds(0.2),
+                Duration = TimeSpan.FromMilliseconds(speed),
                 DecelerationRatio = 0.3
             };
 
-            DoubleAnimation animationHeight = new DoubleAnimation
+            var aHeight = new DoubleAnimation
             {
                 From = WindowContainer.Height,
-                To = ContentContainer.Height,
+                To = ViewContentContainer.Height,
-                Duration = TimeSpan.FromSeconds(0.2),
+                Duration = TimeSpan.FromMilliseconds(speed),
                 DecelerationRatio = 0.3
             };
 
-            Storyboard.SetTarget(animationWidth, WindowContainer);
+            var aOpacity = new DoubleAnimation
-            Storyboard.SetTarget(animationHeight, WindowContainer);
+            {
-            Storyboard.SetTargetProperty(animationWidth, new PropertyPath(WidthProperty));
+                From = 0,
-            Storyboard.SetTargetProperty(animationHeight, new PropertyPath(HeightProperty));
+                To = 1,
+                BeginTime = TimeSpan.FromMilliseconds(speed * 0.25),
+                Duration = TimeSpan.FromMilliseconds(speed * 0.75)
+            };
 
-            ptl.Children.Add(animationWidth);
+            var aOpacityR = new DoubleAnimation
-            ptl.Children.Add(animationHeight);
+            {
+                From = 1,
+                To = 0,
+                Duration = TimeSpan.FromMilliseconds(speed * 2)
+            };
+
+            Storyboard.SetTarget(aWidth, WindowContainer);
+            Storyboard.SetTarget(aHeight, WindowContainer);
+            Storyboard.SetTarget(aOpacity, ViewContentContainer);
+            Storyboard.SetTarget(aOpacityR, LoadingIconLayer);
+            Storyboard.SetTargetProperty(aWidth, new PropertyPath(WidthProperty));
+            Storyboard.SetTargetProperty(aHeight, new PropertyPath(HeightProperty));
+            Storyboard.SetTargetProperty(aOpacity, new PropertyPath(OpacityProperty));
+            Storyboard.SetTargetProperty(aOpacityR, new PropertyPath(OpacityProperty));
+
+            ptl.Children.Add(aWidth);
+            ptl.Children.Add(aHeight);
+            ptl.Children.Add(aOpacity);
+            ptl.Children.Add(aOpacityR);
 
             sb.Children.Add(ptl);
 
             sb.Begin();
+
+            Dispatcher.DelayWithPriority(speed * 2, o => LoadingIconLayer.Visibility = Visibility.Hidden, null,
+                DispatcherPriority.Render);
         }
 
-        private void Button_Click(object sender, RoutedEventArgs e)
+        private void Close_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
         {
-            ZoomToPreferedSize();
+            Close();
+
+            // useless code to make everyone happy
+            GC.Collect();
         }
     }
 }

QuickLook/PathToPluginMatcher.cs

@@ -1,12 +1,58 @@
-using System;
+using System.IO;
-using System.Collections.Generic;
 using System.Linq;
-using System.Text;
+using QuickLook.Plugin;
-using System.Threading.Tasks;
 
 namespace QuickLook
 {
-    class PathToPluginMatcher
+    internal static class PathToPluginMatcher
     {
+        internal static IViewer FindMatch(string[] paths)
+        {
+            if (paths.Length == 0)
+                return null;
+
+            //TODO: Handle multiple files?
+            var path = paths.First();
+
+            return FindByExtension(path) ?? FindByContent(path);
+        }
+
+        private static IViewer FindByExtension(string path)
+        {
+            if (string.IsNullOrEmpty(path))
+                return null;
+
+            var ext = Path.GetExtension(path).ToLower();
+
+            return PluginManager.GetInstance()
+                .LoadedPlugins.FirstOrDefault(plugin =>
+                {
+                    if ((plugin.Type & PluginType.ByExtension) == 0)
+                        return false;
+
+                    return plugin.SupportExtensions.Any(e => e == ext);
+                });
+        }
+
+        private static IViewer FindByContent(string path)
+        {
+            if (string.IsNullOrEmpty(path))
+                return null;
+
+            byte[] sample;
+            using (var br = new BinaryReader(new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)))
+            {
+                sample = br.ReadBytes(256);
+            }
+
+            return PluginManager.GetInstance()
+                .LoadedPlugins.FirstOrDefault(plugin =>
+                {
+                    if ((plugin.Type & PluginType.ByContent) == 0)
+                        return false;
+
+                    return plugin.CheckSupportByContent(sample);
+                });
+        }
     }
 }

QuickLook/Plugin/IViewer.cs

@@ -2,7 +2,9 @@
 {
     public interface IViewer
     {
-        bool CanView(string path, byte[] sample);
+        PluginType Type { get; }
+        string[] SupportExtensions { get; }
+        bool CheckSupportByContent(byte[] sample);
         void View(string path, ViewContentContainer container);
         void Close();
     }

QuickLook/Plugin/PluginPriority.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace QuickLook.Plugin
+{
+    [Flags]
+    public enum PluginType
+    {
+        ByExtension = 0x01,
+        ByContent = 0x10
+    }
+}

QuickLook/Plugin/ViewContentContainer.xaml

@@ -7,8 +7,9 @@
              mc:Ignorable="d"
              d:DesignHeight="300" d:DesignWidth="300">
     <Grid>
-        <ContentControl Name="Container" >
+        <ContentControl Name="Container">
-            <Label Content="ContentControl Placeholder" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Background="LightGray" />
+            <Label Content="ContentControl Placeholder" VerticalContentAlignment="Center"
+                   HorizontalContentAlignment="Center" Background="LightGray" />
         </ContentControl>
     </Grid>
 </UserControl>

QuickLook/Plugin/ViewContentContainer.xaml.cs

@@ -3,7 +3,7 @@
 namespace QuickLook.Plugin
 {
     /// <summary>
-    /// Interaction logic for ViewContentContainer.xaml
+    ///     Interaction logic for ViewContentContainer.xaml
     /// </summary>
     public partial class ViewContentContainer : UserControl
     {

QuickLook/Properties/AssemblyInfo.cs

@@ -1,6 +1,4 @@
 using System.Reflection;
-using System.Resources;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Windows;
 
@@ -33,11 +31,11 @@ using System.Windows;
 
 [assembly: ThemeInfo(
     ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
-                                     //(used if a resource is not found in the page,
+    //(used if a resource is not found in the page,
-                                     // or application resource dictionaries)
+    // or application resource dictionaries)
     ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
-                                              //(used if a resource is not found in the page,
+    //(used if a resource is not found in the page,
-                                              // app, or any theme specific resource dictionaries)
+    // app, or any theme specific resource dictionaries)
 )]
 
 

QuickLook/Properties/Settings.settings

@@ -1,4 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
+
 <SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
   <Profiles>
     <Profile Name="(Default)" />

QuickLook/QuickLook.csproj

@@ -76,6 +76,7 @@
     <Compile Include="PathToPluginMatcher.cs" />
     <Compile Include="PluginManager.cs" />
     <Compile Include="Plugin\IViewer.cs" />
+    <Compile Include="Plugin\PluginPriority.cs" />
     <Compile Include="Plugin\ViewContentContainer.xaml.cs">
       <DependentUpon>ViewContentContainer.xaml</DependentUpon>
     </Compile>

QuickLook/packages.config

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
+
 <packages>
   <package id="FontAwesome.WPF" version="4.7.0.9" targetFramework="net452" />
 </packages>