Files
eveo/Eve-O-Preview/Services/Implementation/ThumbnailManager.cs

676 lines
20 KiB
C#

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using System.Windows.Threading;
using EveOPreview.Configuration;
using EveOPreview.Mediator.Messages;
using EveOPreview.View;
using MediatR;
namespace EveOPreview.Services
{
class ThumbnailManager : IThumbnailManager
{
#region Private constants
private const int WindowPositionThresholdLow = -10_000;
private const int WindowPositionThresholdHigh = 31_000;
private const int WindowSizeThreshold = 10;
private const int ForcedRefreshCycleThreshold = 2;
private const int DefaultLocationChangeNotificationDelay = 2;
private const string DefaultClientTitle = "EVE";
#endregion
#region Private fields
private readonly IMediator _mediator;
private readonly IProcessMonitor _processMonitor;
private readonly IWindowManager _windowManager;
private readonly IThumbnailConfiguration _configuration;
private readonly DispatcherTimer _thumbnailUpdateTimer;
private readonly IThumbnailViewFactory _thumbnailViewFactory;
private readonly Dictionary<IntPtr, IThumbnailView> _thumbnailViews;
private (IntPtr Handle, string Title) _activeClient;
private readonly object _locationChangeNotificationSyncRoot;
private (IntPtr Handle, string Title, string ActiveClient, Point Location, int Delay) _enqueuedLocationChangeNotification;
private bool _ignoreViewEvents;
private bool _isHoverEffectActive;
private int _refreshCycleCount;
#endregion
public ThumbnailManager(IMediator mediator, IThumbnailConfiguration configuration, IProcessMonitor processMonitor, IWindowManager windowManager, IThumbnailViewFactory factory)
{
this._mediator = mediator;
this._processMonitor = processMonitor;
this._windowManager = windowManager;
this._configuration = configuration;
this._thumbnailViewFactory = factory;
this._activeClient = (IntPtr.Zero, ThumbnailManager.DefaultClientTitle);
this.EnableViewEvents();
this._isHoverEffectActive = false;
this._refreshCycleCount = 0;
this._locationChangeNotificationSyncRoot = new object();
this._enqueuedLocationChangeNotification = (IntPtr.Zero, null, null, Point.Empty, -1);
this._thumbnailViews = new Dictionary<IntPtr, IThumbnailView>();
// DispatcherTimer setup
this._thumbnailUpdateTimer = new DispatcherTimer();
this._thumbnailUpdateTimer.Tick += ThumbnailUpdateTimerTick;
this._thumbnailUpdateTimer.Interval = new TimeSpan(0, 0, 0, 0, configuration.ThumbnailRefreshPeriod);
}
public void Start()
{
this._thumbnailUpdateTimer.Start();
this.RefreshThumbnails();
}
public void Stop()
{
this._thumbnailUpdateTimer.Stop();
}
private void ThumbnailUpdateTimerTick(object sender, EventArgs e)
{
this.UpdateThumbnailsList();
this.RefreshThumbnails();
}
private async void UpdateThumbnailsList()
{
this._processMonitor.GetUpdatedProcesses(out ICollection<IProcessInfo> addedProcesses, out ICollection<IProcessInfo> updatedProcesses, out ICollection<IProcessInfo> removedProcesses);
List<string> viewsAdded = new List<string>();
List<string> viewsRemoved = new List<string>();
foreach (IProcessInfo process in addedProcesses)
{
IThumbnailView view = this._thumbnailViewFactory.Create(process.Handle, process.Title, this._configuration.ThumbnailSize);
view.IsOverlayEnabled = this._configuration.ShowThumbnailOverlays;
view.SetFrames(this._configuration.ShowThumbnailFrames);
// Max/Min size limitations should be set AFTER the frames are disabled
// Otherwise thumbnail window will be unnecessary resized
view.SetSizeLimitations(this._configuration.ThumbnailMinimumSize, this._configuration.ThumbnailMaximumSize);
view.SetTopMost(this._configuration.ShowThumbnailsAlwaysOnTop);
view.ThumbnailLocation = this.IsManageableThumbnail(view)
? this._configuration.GetThumbnailLocation(view.Title, this._activeClient.Title, view.ThumbnailLocation)
: this._configuration.GetDefaultThumbnailLocation();
this._thumbnailViews.Add(view.Id, view);
view.ThumbnailResized = this.ThumbnailViewResized;
view.ThumbnailMoved = this.ThumbnailViewMoved;
view.ThumbnailFocused = this.ThumbnailViewFocused;
view.ThumbnailLostFocus = this.ThumbnailViewLostFocus;
view.ThumbnailActivated = this.ThumbnailActivated;
view.ThumbnailDeactivated = this.ThumbnailDeactivated;
view.RegisterHotkey(this._configuration.GetClientHotkey(view.Title));
this.ApplyClientLayout(view.Id, view.Title);
// TODO Add extension filter here later
if (view.Title != ThumbnailManager.DefaultClientTitle)
{
viewsAdded.Add(view.Title);
}
}
foreach (IProcessInfo process in updatedProcesses)
{
this._thumbnailViews.TryGetValue(process.Handle, out IThumbnailView view);
if (view == null)
{
// Something went terribly wrong
continue;
}
if (process.Title != view.Title) // update thumbnail title
{
viewsRemoved.Add(view.Title);
view.Title = process.Title;
viewsAdded.Add(view.Title);
view.RegisterHotkey(this._configuration.GetClientHotkey(process.Title));
this.ApplyClientLayout(view.Id, view.Title);
}
}
foreach (IProcessInfo process in removedProcesses)
{
IThumbnailView view = this._thumbnailViews[process.Handle];
this._thumbnailViews.Remove(view.Id);
if (view.Title != ThumbnailManager.DefaultClientTitle)
{
viewsRemoved.Add(view.Title);
}
view.UnregisterHotkey();
view.ThumbnailResized = null;
view.ThumbnailMoved = null;
view.ThumbnailFocused = null;
view.ThumbnailLostFocus = null;
view.ThumbnailActivated = null;
view.Close();
}
if ((viewsAdded.Count > 0) || (viewsRemoved.Count > 0))
{
await this._mediator.Publish(new ThumbnailListUpdated(viewsAdded, viewsRemoved));
}
}
private void RefreshThumbnails()
{
// TODO Split this method
IntPtr foregroundWindowHandle = this._windowManager.GetForegroundWindowHandle();
string foregroundWindowTitle = null;
if (foregroundWindowHandle == this._activeClient.Handle)
{
foregroundWindowTitle = this._activeClient.Title;
}
else if (this._thumbnailViews.TryGetValue(foregroundWindowHandle, out IThumbnailView foregroundView))
{
// This code will work only on Alt+Tab switch between clients
foregroundWindowTitle = foregroundView.Title;
}
// No need to minimize EVE clients when switching out to non-EVE window (like thumbnail)
if (!string.IsNullOrEmpty(foregroundWindowTitle))
{
this.SwitchActiveClient(foregroundWindowHandle, foregroundWindowTitle);
}
bool hideAllThumbnails = this._configuration.HideThumbnailsOnLostFocus && !this.IsClientWindowActive(foregroundWindowHandle);
this._refreshCycleCount++;
bool forceRefresh;
if (this._refreshCycleCount >= ThumbnailManager.ForcedRefreshCycleThreshold)
{
this._refreshCycleCount = 0;
forceRefresh = true;
}
else
{
forceRefresh = false;
}
this.DisableViewEvents();
// Snap thumbnail
// No need to update Thumbnails while one of them is highlighted
if ((!this._isHoverEffectActive) && this.TryDequeueLocationChange(out var locationChange))
{
if ((locationChange.ActiveClient == this._activeClient.Title) && this._thumbnailViews.TryGetValue(locationChange.Handle, out var view))
{
this.SnapThumbnailView(view);
this.RaiseThumbnailLocationUpdatedNotification(view.Title, this._activeClient.Title, view.ThumbnailLocation);
}
else
{
this.RaiseThumbnailLocationUpdatedNotification(locationChange.Title, locationChange.ActiveClient, locationChange.Location);
}
}
// Hide, show, resize and move
foreach (KeyValuePair<IntPtr, IThumbnailView> entry in this._thumbnailViews)
{
IThumbnailView view = entry.Value;
if (hideAllThumbnails || this._configuration.IsThumbnailDisabled(view.Title))
{
if (view.IsActive)
{
view.Hide();
}
continue;
}
if (this._configuration.HideActiveClientThumbnail && (view.Id == this._activeClient.Handle))
{
if (view.IsActive)
{
view.Hide();
}
continue;
}
// No need to update Thumbnails while one of them is highlighted
if (!this._isHoverEffectActive)
{
// Do not even move thumbnails with default caption
if (this.IsManageableThumbnail(view))
{
view.ThumbnailLocation = this._configuration.GetThumbnailLocation(view.Title, this._activeClient.Title, view.ThumbnailLocation);
}
view.SetOpacity(this._configuration.ThumbnailOpacity);
view.SetTopMost(this._configuration.ShowThumbnailsAlwaysOnTop);
}
view.IsOverlayEnabled = this._configuration.ShowThumbnailOverlays;
view.SetHighlight(this._configuration.EnableActiveClientHighlight && (view.Id == this._activeClient.Handle),
this._configuration.ActiveClientHighlightColor, this._configuration.ActiveClientHighlightThickness);
if (!view.IsActive)
{
view.Show();
}
else
{
view.Refresh(forceRefresh);
}
}
this.EnableViewEvents();
}
public void UpdateThumbnailsSize()
{
this.SetThumbnailsSize(this._configuration.ThumbnailSize);
}
private void SetThumbnailsSize(Size size)
{
this.DisableViewEvents();
foreach (KeyValuePair<IntPtr, IThumbnailView> entry in this._thumbnailViews)
{
entry.Value.ThumbnailSize = size;
entry.Value.Refresh(false);
}
this.EnableViewEvents();
}
public void UpdateThumbnailFrames()
{
this.DisableViewEvents();
foreach (KeyValuePair<IntPtr, IThumbnailView> entry in this._thumbnailViews)
{
entry.Value.SetFrames(this._configuration.ShowThumbnailFrames);
}
this.EnableViewEvents();
}
private void EnableViewEvents()
{
this._ignoreViewEvents = false;
}
private void DisableViewEvents()
{
this._ignoreViewEvents = true;
}
private void SwitchActiveClient(IntPtr foregroungClientHandle, string foregroundClientTitle)
{
// Check if any actions are needed
if (this._activeClient.Handle == foregroungClientHandle)
{
return;
}
// Minimize the currently active client if needed
if (this._configuration.MinimizeInactiveClients && !this._configuration.IsPriorityClient(this._activeClient.Title))
{
this._windowManager.MinimizeWindow(this._activeClient.Handle, false);
}
this._activeClient = (foregroungClientHandle, foregroundClientTitle);
}
private void ThumbnailViewFocused(IntPtr id)
{
if (this._isHoverEffectActive)
{
return;
}
this._isHoverEffectActive = true;
IThumbnailView view = this._thumbnailViews[id];
view.SetTopMost(true);
view.SetOpacity(1.0);
if (this._configuration.ThumbnailZoomEnabled)
{
this.ThumbnailZoomIn(view);
}
}
private void ThumbnailViewLostFocus(IntPtr id)
{
if (!this._isHoverEffectActive)
{
return;
}
IThumbnailView view = this._thumbnailViews[id];
if (this._configuration.ThumbnailZoomEnabled)
{
this.ThumbnailZoomOut(view);
}
view.SetOpacity(this._configuration.ThumbnailOpacity);
this._isHoverEffectActive = false;
}
private void ThumbnailActivated(IntPtr id)
{
IThumbnailView view = this._thumbnailViews[id];
Task.Run(() =>
{
this._windowManager.ActivateWindow(view.Id);
})
.ConfigureAwait(true)
.GetAwaiter()
.OnCompleted(() =>
{
this.SwitchActiveClient(view.Id, view.Title);
this.UpdateClientLayouts();
this.RefreshThumbnails();
});
this.UpdateClientLayouts();
}
private void ThumbnailDeactivated(IntPtr id)
{
if (!this._thumbnailViews.TryGetValue(id, out IThumbnailView view))
{
return;
}
this._windowManager.MinimizeWindow(view.Id, true);
this.RefreshThumbnails();
}
private async void ThumbnailViewResized(IntPtr id)
{
if (this._ignoreViewEvents)
{
return;
}
IThumbnailView view = this._thumbnailViews[id];
this.SetThumbnailsSize(view.ThumbnailSize);
view.Refresh(false);
await this._mediator.Publish(new ThumbnailActiveSizeUpdated(view.ThumbnailSize));
}
private void ThumbnailViewMoved(IntPtr id)
{
if (this._ignoreViewEvents)
{
return;
}
IThumbnailView view = this._thumbnailViews[id];
view.Refresh(false);
this.EnqueueLocationChange(view);
}
private bool IsClientWindowActive(IntPtr windowHandle)
{
if (windowHandle == IntPtr.Zero)
{
return false;
}
foreach (KeyValuePair<IntPtr, IThumbnailView> entry in this._thumbnailViews)
{
IThumbnailView view = entry.Value;
if (view.IsKnownHandle(windowHandle))
{
return true;
}
}
return false;
}
private void ThumbnailZoomIn(IThumbnailView view)
{
this.DisableViewEvents();
view.ZoomIn(ViewZoomAnchorConverter.Convert(this._configuration.ThumbnailZoomAnchor), this._configuration.ThumbnailZoomFactor);
view.Refresh(false);
this.EnableViewEvents();
}
private void ThumbnailZoomOut(IThumbnailView view)
{
this.DisableViewEvents();
view.ZoomOut();
view.Refresh(false);
this.EnableViewEvents();
}
private void SnapThumbnailView(IThumbnailView view)
{
// Check if this feature is enabled
if (!this._configuration.EnableThumbnailSnap)
{
return;
}
// Only borderless thumbnails can be docked
if (this._configuration.ShowThumbnailFrames)
{
return;
}
int width = this._configuration.ThumbnailSize.Width;
int height = this._configuration.ThumbnailSize.Height;
// TODO Extract method
int baseX = view.ThumbnailLocation.X;
int baseY = view.ThumbnailLocation.Y;
Point[] viewPoints = { new Point(baseX, baseY), new Point(baseX + width, baseY), new Point(baseX, baseY + height), new Point(baseX + width, baseY + height) };
// TODO Extract constants
int thresholdX = Math.Max(20, width / 10);
int thresholdY = Math.Max(20, height / 10);
foreach (var entry in this._thumbnailViews)
{
IThumbnailView testView = entry.Value;
if (view.Id == testView.Id)
{
continue;
}
int testX = testView.ThumbnailLocation.X;
int testY = testView.ThumbnailLocation.Y;
Point[] testPoints = { new Point(testX, testY), new Point(testX + width, testY), new Point(testX, testY + height), new Point(testX + width, testY + height) };
var delta = ThumbnailManager.TestViewPoints(viewPoints, testPoints, thresholdX, thresholdY);
if ((delta.X == 0) && (delta.Y == 0))
{
continue;
}
view.ThumbnailLocation = new Point(view.ThumbnailLocation.X + delta.X, view.ThumbnailLocation.Y + delta.Y);
this._configuration.SetThumbnailLocation(view.Title, this._activeClient.Title, view.ThumbnailLocation);
break;
}
}
private static (int X, int Y) TestViewPoints(Point[] viewPoints, Point[] testPoints, int thresholdX, int thresholdY)
{
// Point combinations that we need to check
// No need to check all 4x4 combinations
(int ViewOffset, int TestOffset)[] testOffsets =
{ ( 0, 3 ), ( 0, 2 ), ( 1, 2 ),
( 0, 1 ), ( 0, 0 ), ( 1, 0 ),
( 2, 1 ), ( 2, 0 ), ( 3, 0 )};
foreach (var testOffset in testOffsets)
{
Point viewPoint = viewPoints[testOffset.ViewOffset];
Point testPoint = testPoints[testOffset.TestOffset];
int deltaX = testPoint.X - viewPoint.X;
int deltaY = testPoint.Y - viewPoint.Y;
if ((Math.Abs(deltaX) <= thresholdX) && (Math.Abs(deltaY) <= thresholdY))
{
return (deltaX, deltaY);
}
}
return (0, 0);
}
private void ApplyClientLayout(IntPtr clientHandle, string clientTitle)
{
ClientLayout clientLayout = this._configuration.GetClientLayout(clientTitle);
if (clientLayout == null)
{
return;
}
this._windowManager.MoveWindow(clientHandle, clientLayout.X, clientLayout.Y, clientLayout.Width, clientLayout.Height);
}
private void UpdateClientLayouts()
{
if (!this._configuration.EnableClientLayoutTracking)
{
return;
}
foreach (KeyValuePair<IntPtr, IThumbnailView> entry in this._thumbnailViews)
{
IThumbnailView view = entry.Value;
(int Left, int Top, int Right, int Bottom) position = this._windowManager.GetWindowPosition(view.Id);
int width = Math.Abs(position.Right - position.Left);
int height = Math.Abs(position.Bottom - position.Top);
if (!this.IsValidWindowPosition(position.Left, position.Top, width, height))
{
continue;
}
this._configuration.SetClientLayout(view.Title, new ClientLayout(position.Left, position.Top, width, height));
}
}
private void EnqueueLocationChange(IThumbnailView view)
{
string activeClientTitle = this._activeClient.Title;
// TODO ??
this._configuration.SetThumbnailLocation(view.Title, activeClientTitle, view.ThumbnailLocation);
lock (this._locationChangeNotificationSyncRoot)
{
if (this._enqueuedLocationChangeNotification.Handle == IntPtr.Zero)
{
this._enqueuedLocationChangeNotification = (view.Id, view.Title, activeClientTitle, view.ThumbnailLocation, ThumbnailManager.DefaultLocationChangeNotificationDelay);
return;
}
// Reset the delay and exit
if ((this._enqueuedLocationChangeNotification.Handle == view.Id) &&
(this._enqueuedLocationChangeNotification.ActiveClient == activeClientTitle))
{
this._enqueuedLocationChangeNotification.Delay = ThumbnailManager.DefaultLocationChangeNotificationDelay;
return;
}
this.RaiseThumbnailLocationUpdatedNotification(this._enqueuedLocationChangeNotification.Title, activeClientTitle, this._enqueuedLocationChangeNotification.Location);
this._enqueuedLocationChangeNotification = (view.Id, view.Title, activeClientTitle, view.ThumbnailLocation, ThumbnailManager.DefaultLocationChangeNotificationDelay);
}
}
private bool TryDequeueLocationChange(out (IntPtr Handle, string Title, string ActiveClient, Point Location) change)
{
lock (this._locationChangeNotificationSyncRoot)
{
change = (IntPtr.Zero, null, null, Point.Empty);
if (this._enqueuedLocationChangeNotification.Handle == IntPtr.Zero)
{
return false;
}
this._enqueuedLocationChangeNotification.Delay--;
if (this._enqueuedLocationChangeNotification.Delay > 0)
{
return false;
}
change = (this._enqueuedLocationChangeNotification.Handle, this._enqueuedLocationChangeNotification.Title, this._enqueuedLocationChangeNotification.ActiveClient, this._enqueuedLocationChangeNotification.Location);
this._enqueuedLocationChangeNotification = (IntPtr.Zero, null, null, Point.Empty, -1);
return true;
}
}
private async void RaiseThumbnailLocationUpdatedNotification(string title, string activeClient, Point location)
{
if (string.IsNullOrEmpty(title) || (title == ThumbnailManager.DefaultClientTitle))
{
return;
}
await this._mediator.Send(new SaveConfiguration());
}
// We shouldn't manage some thumbnails (like thumbnail of the EVE client sitting on the login screen)
// TODO Move to a service (?)
private bool IsManageableThumbnail(IThumbnailView view)
{
return view.Title != ThumbnailManager.DefaultClientTitle;
}
// Quick sanity check that the window is not minimized
private bool IsValidWindowPosition(int letf, int top, int width, int height)
{
return (letf > ThumbnailManager.WindowPositionThresholdLow) && (letf < ThumbnailManager.WindowPositionThresholdHigh)
&& (top > ThumbnailManager.WindowPositionThresholdLow) && (top < ThumbnailManager.WindowPositionThresholdHigh)
&& (width > ThumbnailManager.WindowSizeThreshold) && (height > ThumbnailManager.WindowSizeThreshold);
}
}
}