/// <summary>Called when a selection starts using the given input pointer (typically a mouse).</summary>
public static void BeginSelect(PowerUI.InputPointer pointer, Css.Value mode)
{
// Selection starting at the position the pointer started dragging
// Firstly, resolve our doc coords to a selection range start.
// Get as first containing child node (should be text or null):
NodeList kids = pointer.ActivePressed.childNodes_;
if (kids != null)
{
for (int i = 0; i < kids.length; i++)
{
IRenderableNode irn = (kids[i] as IRenderableNode);
if (irn != null)
{
// Contains it?
LayoutBox box = irn.RenderData.BoxAt(pointer.DownDocumentX, pointer.DownDocumentY);
if (box == null)
{
// Use the last one:
box = irn.RenderData.LastBox;
}
if (box != null)
{
// Great! Try it as a text node (should always be one):
PowerUI.RenderableTextNode htn = (kids[i] as PowerUI.RenderableTextNode);
if (htn != null)
{
// Awesome - get the letter indices:
int startIndex = htn.LetterIndex(pointer.DownDocumentX, box);
int endIndex = htn.LetterIndex(pointer.DocumentX, pointer.DocumentY);
// Create a range:
Range range = new Range();
range.startOffset = startIndex;
range.endOffset = endIndex;
range.startContainer = htn;
range.endContainer = htn;
// Get the current selection:
Selection s = (kids[i].document as HtmlDocument).getSelection();
// Clear all:
s.removeAllRanges();
// Add range:
s.addRange(range);
}
break;
}
}
}
}
}
public override void OnClickEvent(MouseEvent clickEvent)
{
// Focus it:
focus();
if (Type == InputType.Submit)
{
// Find the form and then attempt to submit it.
HtmlFormElement f = form;
if (f != null)
{
f.submit(this);
}
}
else if (Type == InputType.Radio)
{
Select();
}
else if (Type == InputType.Checkbox)
{
if (Checked_)
{
Unselect();
}
else
{
Select();
}
}
else if (IsTextInput())
{
// Move the caret to the clicked point.
// Get the text content:
RenderableTextNode htn = TextHolder;
if (htn == null)
{
// Index is just 0.
return;
}
// Get the letter index:
int index = htn.LetterIndex(clickEvent.clientX, clickEvent.clientY);
// Move the caret there (requesting a redraw):
MoveCaret(index, true);
}
}
/// <summary>Gets the next/previous suitable newline index.</summary>
public int FindNewline(int direction)
{
// Get the text content:
RenderableTextNode htn = TextHolder;
if (htn == null || htn.RenderData.Text == null || htn.RenderData.Text.Characters == null)
{
return(CaretIndex);
}
// Get the renderer so we can access the chars:
TextRenderingProperty trp = htn.RenderData.Text;
// First index to check is..
int index = CaretIndex + direction;
// Safety check:
int max = trp.Characters.Length;
if (index >= max)
{
index = max - 1;
}
else if (index < 0)
{
index = 0;
}
while (index > 0 && index < max)
{
// Check if char[index] is a newline:
InfiniText.Glyph glyph = trp.Characters[index];
if (glyph != null && glyph.Charcode == (int)'\n')
{
// Got it!
if (direction == 1)
{
index++;
}
break;
}
// Next one:
index += direction;
}
return(index);
}
public override void OnClickEvent(MouseEvent clickEvent)
{
// Ensure it's focused:
focus();
// Get the text content:
RenderableTextNode htn = TextHolder;
if (htn == null)
{
// Index is just 0.
return;
}
// Get the letter index:
int index = htn.LetterIndex(clickEvent.clientX, clickEvent.clientY);
// Move the caret there (requesting a redraw):
MoveCaret(index, true);
}
public override void OnComputeBox(Renderman renderer, Css.LayoutBox box, ref bool widthUndefined, ref bool heightUndefined)
{
// Locate the caret if we need to:
if (Locate)
{
Locate = false;
RenderableTextNode htn = TextHolder;
Vector2 position;
if (htn == null)
{
// Just at 0,0:
position = Vector2.zero;
}
else
{
// Clip:
if (Index >= htn.length)
{
Index = htn.length;
}
// Get the position of the given letter:
position = htn.GetPosition(Index);
}
// Scroll it if position is out of range:
ScrollIfBeyond(ref position);
// Set it in for this pass:
box.Position.Top = position.y;
box.Position.Left = position.x;
// Write it out:
Style.Computed.ChangeTagProperty("left", new Css.Units.DecimalUnit(position.x), false);
Style.Computed.ChangeTagProperty("top", new Css.Units.DecimalUnit(position.y), false);
}
}
/// <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){
// 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:
InputPointer current=InputPointer.AllRaw[p];
if(current.ID==touch.fingerId){
// Got it!
pointer=current;
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.ID=touch.fingerId;
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.Radius=touch.radius;
tp.RadiusVariance=touch.radiusVariance;
tp.LatestPressure=touch.pressure;
// Is it a stylus?
if(tp is StylusPointer){
tp.UpdateStylus(touch.azimuthAngle,touch.altitudeAngle);
}
// Always a pressure of 1 otherwise (the 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;
// Clear pressure (mouseup etc):
pointer.SetPressure(0f);
if(pointer.ActiveOverTarget!=null){
// Shared event:
MouseEvent mouseEvent=new MouseEvent(pointer.ScreenX,pointer.ScreenY,pointer.ButtonID,false);
mouseEvent.trigger=pointer;
mouseEvent.clientX=pointer.DocumentX;
mouseEvent.clientY=pointer.DocumentY;
mouseEvent.SetModifiers();
mouseEvent.SetTrusted();
// Trigger a mouseout (bubbles):
mouseEvent.EventType="mouseout";
mouseEvent.SetTrusted();
pointer.ActiveOverTarget.dispatchEvent(mouseEvent);
// And a mouseleave (doesn't bubble).
mouseEvent.Reset();
mouseEvent.bubbles=false;
mouseEvent.EventType="mouseleave";
pointer.ActiveOverTarget.dispatchEvent(mouseEvent);
// Update the CSS (hover; typically out):
IRenderableNode irn = (pointer.ActiveOverTarget as IRenderableNode);
if(irn!=null){
irn.ComputedStyle.RefreshLocal(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;
EventTarget newActiveOver=TargetFromPoint(ref documentX,ref documentY,pointer);
// Update docX/Y:
pointer.DocumentX=documentX;
pointer.DocumentY=documentY;
// Get the old one:
EventTarget oldActiveOver=pointer.ActiveOverTarget;
// 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.eventTargetParentNode!=newActiveOver){
mouseEvent.Reset();
mouseEvent.bubbles=false;
mouseEvent.EventType="mouseleave";
mouseEvent.relatedTarget=newActiveOver;
oldActiveOver.dispatchEvent(mouseEvent);
}
}
// Update it:
pointer.ActiveOverTarget=newActiveOver;
if(oldActiveOver!=null){
// Update the CSS (hover; typically out):
IRenderableNode irn = (oldActiveOver as IRenderableNode);
if(irn!=null){
irn.ComputedStyle.RefreshLocal(true);
}
}
if(newActiveOver!=null){
// Update the CSS (hover; typically in)
IRenderableNode irn = (newActiveOver as IRenderableNode);
if(irn!=null){
irn.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.getTitle();
// And a mouseenter (doesn't bubble).
// Only triggered if newActiveOver is *not* a child of oldActiveOver.
if(newActiveOver.eventTargetParentNode!=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);
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.ActivePressedTarget==null){
// Trigger on unhandled:
Unhandled.dispatchEvent(te);
}else{
pointer.ActivePressedTarget.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.ActiveUpdatingTarget=GetDraggable(pointer.ActivePressedTarget as Element);
// Find the min drag distance:
pointer.MinDragDistance=pointer.GetMinDragDistance();
}
if(pointer.MovedBeyondDragDistance){
// Possibly dragging.
// Actually marked as 'draggable'?
if(pointer.ActiveUpdatingTarget!=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.ActivePressedTarget.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?
IRenderableNode irn = (pointer.ActivePressedTarget as IRenderableNode);
if(irn!=null){
// It's renderable; can it be selected?
ComputedStyle cs=irn.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.ActivePressedTarget 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.ActivePressedTarget!=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.ActivePressedTarget.dispatchEvent(de)){
// Note that onDrag runs on the *dragging* element only.
Element dragging;
if(pointer.ActiveUpdatingTarget==null){
dragging = (Element)pointer.ActivePressedTarget;
}else{
dragging = (Element)pointer.ActiveUpdatingTarget;
}
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.ActivePressedTarget!=null){
DragEvent de=new DragEvent("drag");
de.trigger=pointer;
de.SetModifiers();
de.SetTrusted();
de.clientX=pointer.DocumentX;
de.clientY=pointer.DocumentY;
if(pointer.ActivePressedTarget.dispatchEvent(de)){
// We can only select elements:
Element pressedElement = (Element)pointer.ActivePressedTarget;
// Get the current selection:
Selection s=(pressedElement.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
}
/// <summary>Selects/ Deselects a whole range.</summary>
internal void UpdateSelection(bool select, Range r)
{
if (r.startContainer == null)
{
return;
}
// Get as text node:
RenderableTextNode htn = (r.startContainer as RenderableTextNode);
if (htn == null)
{
// Can't select this at the moment.
Dom.Log.Add("Note: Attempted to select something that isn't text. If you want this to work, let us know!");
return;
}
// Text selection from r.startOffset -> r.endOffset
// Get the selection renderer:
SelectionRenderingProperty srp = htn.RenderData.GetProperty(
typeof(SelectionRenderingProperty)
) as SelectionRenderingProperty;
if (select)
{
// Create if it doesn't exist:
if (srp == null)
{
// Create:
srp = new SelectionRenderingProperty(htn.RenderData);
srp.Text = htn.RenderData.Text;
// Add it:
htn.RenderData.AddOrReplaceProperty(srp, typeof(SelectionRenderingProperty));
}
// Update range:
if (r.endOffset < r.startOffset)
{
// Dragged upwards:
srp.StartIndex = r.endOffset;
srp.EndIndex = r.startOffset;
}
else
{
srp.StartIndex = r.startOffset;
srp.EndIndex = r.endOffset;
}
// Layout:
srp.RequestLayout();
}
else if (srp != null)
{
// Remove:
htn.RenderData.AddOrReplaceProperty(null, typeof(SelectionRenderingProperty));
// Layout:
srp.RequestLayout();
}
}