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capture user move window action instantly with precision without using delay timer

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This commit is contained in:
Kang Yu 2020-02-29 18:18:00 -08:00
parent 29f24db354
commit aa8b478eda
1 changed files with 32 additions and 50 deletions
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82
Ninjacrab.PersistentWindows.Solution/Ninjacrab.PersistentWindows.Common/PersistentWindowProcessor.cs
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@ -22,9 +22,6 @@ namespace Ninjacrab.PersistentWindows.Common
private const int MaxRestoreTimesRemote = 6; // for remote session
private const int CaptureLatency = 3000; // milliseconds to wait for window position capture, should be bigger than RestoreLatency
private const int MaxCaptureLatency = 15000; // max latency to capture OS moves, needed for slow RDP session
private const int MaxUserMovePerSecond = 4; // maximum speed of window move/resize by human
private const int MinOsMoveWindows = 5; // minimum number of moving windows to measure in order to recognize OS initiated move
// window position database
private Dictionary<string, Dictionary<string, ApplicationDisplayMetrics>> monitorApplications = null;
@ -37,14 +34,8 @@ namespace Ninjacrab.PersistentWindows.Common
private Object controlLock = new Object();
private string validDisplayKeyForCapture = null;
// capture control: window move/resize activity
private int userMoves = 0; // user initiated window move/resize events
private DateTime firstEventTime;
private HashSet<IntPtr> pendingCaptureWindows = new HashSet<IntPtr>();
// restore control
private bool restoringWindowPos = false; // about to restore
private bool osMove = false; // window move/resize is initiated by OS
private int restoreTimes = 0;
private int restoreNestLevel = 0; // nested call level
@ -71,7 +62,6 @@ namespace Ninjacrab.PersistentWindows.Common
BeginCaptureApplicationsOnCurrentDisplays();
});
firstEventTime = DateTime.Now;
validDisplayKeyForCapture = GetDisplayKey();
StartCaptureTimer(); //initial capture
@ -85,7 +75,6 @@ namespace Ninjacrab.PersistentWindows.Common
{
Log.Trace("Restore Finished");
restoringWindowPos = false;
osMove = false;
ResetState();
});
@ -244,25 +233,6 @@ namespace Ninjacrab.PersistentWindows.Common
Log.Trace(log);
#endif
DateTime now = DateTime.Now;
if (pendingCaptureWindows.Count() == 0)
{
firstEventTime = now;
}
pendingCaptureWindows.Add(hwnd);
// figure out if all pending capture moves are OS initiated
double elapsedMs = (now - firstEventTime).TotalMilliseconds;
if (userMoves == 0
&& pendingCaptureWindows.Count >= MinOsMoveWindows
&& elapsedMs * MaxUserMovePerSecond / 1000 < pendingCaptureWindows.Count)
{
osMove = true;
Log.Trace("os move detected. user moves :{0}, total moved windows : {1}, elapsed milliseconds {2}",
userMoves, pendingCaptureWindows.Count, elapsedMs);
}
if (restoringWindowPos)
{
switch (eventType)
@ -271,6 +241,7 @@ namespace Ninjacrab.PersistentWindows.Common
// if user opened new window, don't abort restore, as new window is not affected by restore anyway
return;
case User32Events.EVENT_OBJECT_LOCATIONCHANGE:
// let it trigger next restore
break;
case User32Events.EVENT_SYSTEM_MINIMIZESTART:
case User32Events.EVENT_SYSTEM_MINIMIZEEND:
@ -283,7 +254,8 @@ namespace Ninjacrab.PersistentWindows.Common
{
lock (databaseLock)
{
StartCaptureApplicationsOnCurrentDisplays();
string displayKey = GetDisplayKey();
CaptureWindow(window, eventType, DateTime.Now, displayKey);
}
}
catch (Exception ex)
@ -307,6 +279,34 @@ namespace Ninjacrab.PersistentWindows.Common
}
else
{
switch (eventType)
{
case User32Events.EVENT_OBJECT_LOCATIONCHANGE:
break;
case User32Events.EVENT_SYSTEM_FOREGROUND:
case User32Events.EVENT_SYSTEM_MINIMIZESTART:
case User32Events.EVENT_SYSTEM_MINIMIZEEND:
case User32Events.EVENT_SYSTEM_MOVESIZEEND:
var thread = new Thread(() =>
{
try
{
lock (databaseLock)
{
string displayKey = GetDisplayKey();
CaptureWindow(window, eventType, DateTime.Now, displayKey);
}
}
catch (Exception ex)
{
Log.Error(ex.ToString());
}
});
thread.Start();
break;
}
/*
if (eventType != User32Events.EVENT_OBJECT_LOCATIONCHANGE)
{
userMoves++;
@ -316,6 +316,7 @@ namespace Ninjacrab.PersistentWindows.Common
{
StartCaptureTimer();
}
*/
}
}
catch (Exception ex)
@ -424,22 +425,6 @@ namespace Ninjacrab.PersistentWindows.Common
return;
}
if (restoringWindowPos && userMoves == 0 && pendingCaptureWindows.Count == 0)
{
return;
}
if (osMove)
{
// postpone capture to wait for restore
osMove = false;
if (!restoringWindowPos)
{
StartCaptureTimer(MaxCaptureLatency);
}
return;
}
lock (databaseLock)
{
StartCaptureApplicationsOnCurrentDisplays();
@ -467,15 +452,12 @@ namespace Ninjacrab.PersistentWindows.Common
// reset capture statistics for next capture period
CancelCaptureTimer();
pendingCaptureWindows.Clear();
userMoves = 0;
}
}
private void StartCaptureApplicationsOnCurrentDisplays()
{
restoringWindowPos = false;
osMove = false;
ResetState();
CaptureApplicationsOnCurrentDisplays();
}