/// <summary>Updates mouse overs, touches and the mouse position.</summary>
public static void Update()
{
InputPointer pointer;
// Look out for any 'new' touch events:
int touchCount = UnityEngine.Input.touchCount;
if (touchCount > 0)
{
Debug.Log("HiInput TouchCount: " + touchCount.ToString());
// For each one..
for (int i = 0; i < touchCount; i++)
{
// Get the info:
Touch touch = UnityEngine.Input.GetTouch(i);
pointer = null;
// Already seen this one?
// There won't be many touches so a straight linear scan is by far the fastest option here.
// (It's much better than a dictionary).
for (int p = InputPointer.PointerCount - 1; p >= 0; p--)
{
// Get the pointer:
pointer = InputPointer.AllRaw[p];
if (pointer.ID == touch.fingerId)
{
// Got it!
break;
}
}
TouchPointer tp = null;
if (pointer == null)
{
// Touch start! A new finger has been seen for the first time.
#if UNITY_5_3_OR_NEWER
// Could be a stylus:
if (touch.type == TouchType.Stylus)
{
tp = new StylusPointer();
}
else
{
tp = new FingerPointer();
}
#else
// Can only assume it's a finger here:
tp = new FingerPointer();
#endif
// Add it to the available set:
tp.Add();
}
else
{
// Apply latest info:
tp = (pointer as TouchPointer);
}
// Mark it as still alive so it doesn't get removed shortly.
tp.StillAlive = true;
tp.LatestPosition = touch.position;
#if UNITY_5_3_OR_NEWER
tp.LatestPressure = touch.pressure;
tp.Radius = touch.radius;
tp.RadiusVariance = touch.radiusVariance;
// Is it a stylus?
if (tp is StylusPointer)
{
tp.UpdateStylus(touch.azimuthAngle, touch.altitudeAngle);
}
// Always a pressure of 1 otherwise (which is set by default).
#endif
}
}
// Update each pointer, invalidating itself only if it has moved:
bool pointerRemoved = false;
for (int i = InputPointer.PointerCount - 1; i >= 0; i--)
{
// Get the pointer:
pointer = InputPointer.AllRaw[i];
// Update its position and state now:
Vector2 delta;
bool moved = pointer.Relocate(out delta);
if (pointer.Removed)
{
// It got removed! (E.g. a finger left the screen).
pointerRemoved = true;
continue;
}
// If the pointer is invalid or they all are:
if (moved || PointersInvalid)
{
// Figure out what's under it. This takes its pos on the screen
// and figures out what's there, as well as converting the position
// to one which is relative to the document (used by e.g. a WorldUI).
float documentX = pointer.ScreenX;
float documentY = pointer.ScreenY;
Element newActiveOver = ElementFromPoint(ref documentX, ref documentY, pointer);
// Update docX/Y:
pointer.DocumentX = documentX;
pointer.DocumentY = documentY;
// Get the old one:
Element oldActiveOver = pointer.ActiveOver;
// Shared event:
MouseEvent mouseEvent = new MouseEvent(documentX, documentY, pointer.ButtonID, pointer.IsDown);
mouseEvent.trigger = pointer;
mouseEvent.clientX = pointer.DocumentX;
mouseEvent.clientY = pointer.DocumentY;
mouseEvent.SetModifiers();
mouseEvent.SetTrusted();
// If overElement has changed from the previous one..
if (newActiveOver != oldActiveOver)
{
if (oldActiveOver != null)
{
// Trigger a mouseout (bubbles):
mouseEvent.EventType = "mouseout";
mouseEvent.SetTrusted();
mouseEvent.relatedTarget = newActiveOver;
oldActiveOver.dispatchEvent(mouseEvent);
// And a mouseleave (doesn't bubble).
// Only triggered if newActiveOver is *not* the parent of oldActiveOver.
if (oldActiveOver.parentNode_ != newActiveOver)
{
mouseEvent.Reset();
mouseEvent.bubbles = false;
mouseEvent.EventType = "mouseleave";
mouseEvent.relatedTarget = newActiveOver;
oldActiveOver.dispatchEvent(mouseEvent);
}
}
// Update it:
pointer.ActiveOver = newActiveOver;
if (oldActiveOver != null)
{
// Update the CSS (hover; typically out):
(oldActiveOver as IRenderableNode).ComputedStyle.RefreshLocal(true);
}
if (newActiveOver != null)
{
// Update the CSS (hover; typically in)
(newActiveOver as IRenderableNode).ComputedStyle.RefreshLocal(true);
}
// Trigger a mouseover (bubbles):
mouseEvent.Reset();
mouseEvent.bubbles = true;
mouseEvent.relatedTarget = oldActiveOver;
mouseEvent.EventType = "mouseover";
if (newActiveOver == null)
{
// Clear the main UI tooltip:
UI.document.tooltip = null;
// Dispatch to unhandled:
Unhandled.dispatchEvent(mouseEvent);
}
else
{
newActiveOver.dispatchEvent(mouseEvent);
// Set the tooltip if we've got one:
UI.document.tooltip = newActiveOver["title"];
// And a mouseenter (doesn't bubble).
// Only triggered if newActiveOver is *not* a child of oldActiveOver.
if (newActiveOver.parentNode_ != oldActiveOver)
{
mouseEvent.Reset();
mouseEvent.bubbles = false;
mouseEvent.EventType = "mouseenter";
mouseEvent.relatedTarget = oldActiveOver;
newActiveOver.dispatchEvent(mouseEvent);
}
}
}
if (moved)
{
// Trigger a mousemove event:
mouseEvent.Reset();
mouseEvent.bubbles = true;
mouseEvent.EventType = "mousemove";
if (newActiveOver == null)
{
Unhandled.dispatchEvent(mouseEvent);
}
else
{
newActiveOver.dispatchEvent(mouseEvent);
}
}
}
// If the pointer requires pressure changes..
if (pointer.FireTouchEvents)
{
// Set the pressure (which triggers mousedown/up for us too):
TouchPointer tp = (pointer as TouchPointer);
if (tp.LatestPressure != tp.Pressure)
{
tp.SetPressure(tp.LatestPressure);
}
// We test touch move down here because it must happen after we've
// transferred 'ActiveOver' to 'ActiveDown' which happens inside SetPressure.
// Touch events are triggered on the element that was pressed down on
// (even if we've moved beyond it's bounds).
if (moved)
{
// Trigger a touchmove event too:
TouchEvent te = new TouchEvent("touchmove");
te.trigger = pointer;
te.SetTrusted();
te.clientX = pointer.DocumentX;
te.clientY = pointer.DocumentY;
te.SetModifiers();
if (pointer.ActivePressed == null)
{
// Trigger on unhandled:
Unhandled.dispatchEvent(te);
}
else
{
pointer.ActivePressed.dispatchEvent(te);
}
}
}
// Test for dragstart
if (pointer.IsDown && moved)
{
// How far has it moved since it went down?
if (pointer.DragStatus == InputPointer.DRAG_UNKNOWN)
{
// Is the element we pressed (or any of its parents) draggable?
if (pointer.MinDragDistance == 0f)
{
// Find if we've got a draggable element:
pointer.ActiveUpdating = GetDraggable(pointer.ActivePressed);
// Find the min drag distance:
pointer.MinDragDistance = pointer.GetMinDragDistance();
}
if (pointer.MovedBeyondDragDistance)
{
// Possibly dragging.
// Actually marked as 'draggable'?
if (pointer.ActiveUpdating != null)
{
// Try start drag:
DragEvent de = new DragEvent("dragstart");
de.trigger = pointer;
de.SetModifiers();
de.SetTrusted();
de.deltaX = delta.x;
de.deltaY = delta.y;
de.clientX = pointer.DocumentX;
de.clientY = pointer.DocumentY;
if (pointer.ActivePressed.dispatchEvent(de))
{
// We're now dragging!
pointer.DragStatus = InputPointer.DRAGGING;
}
else
{
// It didn't allow it. This status prevents it from spamming dragstart.
pointer.DragStatus = InputPointer.DRAG_NOT_AVAILABLE;
}
}
else
{
// Selectable?
ComputedStyle cs = (pointer.ActivePressed as IRenderableNode).ComputedStyle;
Css.Value userSelect = cs[Css.Properties.UserSelect.GlobalProperty];
if (userSelect != null && !(userSelect.IsType(typeof(Css.Keywords.None))) && !userSelect.IsAuto)
{
// Selectable!
Css.Properties.UserSelect.BeginSelect(pointer, userSelect);
// Set status:
pointer.DragStatus = InputPointer.SELECTING;
// Focus it if needed:
HtmlElement html = (pointer.ActivePressed as HtmlElement);
if (html != null)
{
html.focus();
}
}
else
{
// This status prevents it from spamming, at least until we release.
pointer.DragStatus = InputPointer.DRAG_NOT_AVAILABLE;
}
}
}
}
else if (pointer.DragStatus == InputPointer.DRAGGING)
{
// Move the dragged element (the event goes to everybody):
if (pointer.ActivePressed != null)
{
DragEvent de = new DragEvent("drag");
de.trigger = pointer;
de.SetModifiers();
de.SetTrusted();
de.deltaX = delta.x;
de.deltaY = delta.y;
de.clientX = pointer.DocumentX;
de.clientY = pointer.DocumentY;
if (pointer.ActivePressed.dispatchEvent(de))
{
// Note that onDrag runs on the *dragging* element only.
Element dragging = (pointer.ActiveUpdating == null)? pointer.ActivePressed : pointer.ActiveUpdating;
if (dragging.OnDrag(de))
{
// Run the PowerUI default - move the element:
RenderableData renderData = (dragging as IRenderableNode).RenderData;
// Get the "actual" left/top values:
if (renderData.FirstBox != null)
{
// Get computed style:
ComputedStyle cs = renderData.computedStyle;
// Fix if it isn't already:
if (renderData.FirstBox.PositionMode != PositionMode.Fixed)
{
cs.ChangeTagProperty("position", "fixed");
}
// Get top/left pos:
float left = renderData.FirstBox.X + delta.x;
float top = renderData.FirstBox.Y + delta.y;
// Write it back out:
cs.ChangeTagProperty("left", new Css.Units.DecimalUnit(left));
cs.ChangeTagProperty("top", new Css.Units.DecimalUnit(top));
}
}
}
}
}
else if (pointer.DragStatus == InputPointer.SELECTING)
{
// Update the selection.
if (pointer.ActivePressed != null)
{
DragEvent de = new DragEvent("drag");
de.trigger = pointer;
de.SetModifiers();
de.SetTrusted();
de.clientX = pointer.DocumentX;
de.clientY = pointer.DocumentY;
if (pointer.ActivePressed.dispatchEvent(de))
{
// Get the current selection:
Selection s = (pointer.ActivePressed.document as HtmlDocument).getSelection();
// Safety check:
if (s.ranges.Count > 0)
{
// Get the range:
Range range = s.ranges[0];
// Get text node:
RenderableTextNode htn = (range.startContainer as RenderableTextNode);
if (htn != null)
{
// Get the new end index:
int endIndex = htn.LetterIndex(pointer.DocumentX, pointer.DocumentY);
// Update:
range.endOffset = endIndex;
// Flush:
s.UpdateSelection(true, range);
}
}
}
}
}
}
}
if (pointerRemoved)
{
// Tidy the removed ones:
InputPointer.Tidy();
}
// Clear invalidated state:
PointersInvalid = false;
#if MOBILE
// Handle mobile keyboard:
if (MobileKeyboard != null)
{
HandleMobileKeyboardInput();
}
#endif
}