source: main/trunk/model-sites-dev/mozarts-laptop/collect/digital-music-stand/script/annotate-main.js@ 30456

var mouseX = 0;
var mouseY = 0;

function trackMouse(e)
{

    //0,0 point is the top left corner of the container,
    //minus its padding:
    var containerX = YAHOO.util.Dom.getX("thispage");
    var containerY = YAHOO.util.Dom.getY("thispage");
    var clickX = YAHOO.util.Event.getPageX(e);
    var clickY = YAHOO.util.Event.getPageY(e);

    mouseX = clickX;
    mouseY = clickY;

    var coord_div  = getElement("coord");
    coord_div.innerHTML = mouseX + ", " + mouseY;


     //get container padding using Dom's getStyle():
    var containerPaddingX = parseInt(YAHOO.util.Dom.getStyle("thispage","padding-left"), 10);
    var containerPaddingY = parseInt(YAHOO.util.Dom.getStyle("thispage","padding-top"), 10);
    var newWidth = clickX - containerX - containerPaddingX;
    var newHeight = clickY - containerY - containerPaddingY;


   if (annotateMoveElem != null) {
       annotateMoveElem.style.left = (mouseX - moveXOffset) + "px";
       annotateMoveElem.style.top  = (mouseY - moveYOffset) + "px";
   }


   if (annotateResizeElem != null) {
       var ax_org = parseInt(annotateResizeElem.style.left);
       var ay_org = parseInt(annotateResizeElem.style.top);
       var ax_dim = mouseX - ax_org +1;
       var ay_dim = mouseY - ay_org +1;

       if ((ax_dim>16) && (ay_dim>16)) {
           annotateResizeElem.style.width  = ax_dim + "px";
           annotateResizeElem.style.height = ay_dim + "px";
       }
   }


}


function closeAnnotation(elem,evt)
{
    // 'elem' not currently used, but passed in to be similar to other event handlers
    // 'elem' could be used to simplify working 'closeElem' ??
    
    evt = evt || window.event;

    var mousePos = getMouseCoords(evt);

    var closeElem = de.cursor.getNonCursorNodeAtXY(mousePos.x, mousePos.y);

    var currElem = closeElem.parentNode;
    var prevElem = closeElem;

    while (currElem!=null) {
        prevElem = currElem;
        currElem = currElem.parentNode;

        if (prevElem.getAttribute("class") == "annotationNote") {
        break;
    }
    }
        
    var annotateCanvas = currElem;
    var annotateDiv   = prevElem;

    var editableElems = getElementsByClass("editable-",annotateDiv);
    var editableElem = editableElems[0];

    var removeMetapos = editableElem.getAttribute("metapos");
    console.log("closeAnnotation: metapos = " + removeMetapos);

    annotate.removeAnnotation(annotateCanvas,removeMetapos);

    return false;
}


var annotateResize = false;
var annotateResizeElem = null;

function startResizeAnnotation(elem,event)
{
    event = event || window.event;

    var rightclick = false;
    if (event.which) rightclick = (event.which == 3);
    else if (event.button) rightclick = (event.button == 2);
    // stop things early (allow for right-click to close annotation, on mouseup)
    if (rightclick) return false; 

    annotateResize = true;
    annotateResizeElem = elem.parentNode.parentNode.parentNode.parentNode;

    console.log("*** clearing selection and setting cursor to null!");
    de.selection.clear(); // clear selection
    de.cursor.setCursor(null); // clear focus

    return false; // stop drag and drop of image
}

function stopResizeAnnotation(elem,event)
{
    event = event || window.event;

    var rightclick = false;
    if (event.which) rightclick = (event.which == 3);
    else if (event.button) rightclick = (event.button == 2);
    // stop things early (allow for right-click to close annotation, on mouseup)
    if (rightclick) return closeAnnotation(elem,event);

    annotateResize = false;
    annotateResizeElem = null;

    return true;

}


var annotateMove = false;
var annotateMoveElem = null;

var moveXOffset = 0;
var moveYOffset = 0;

function annotateMouseDown(elem,event)
{
    event = event || window.event;

    annotateMove = true;
    annotateMoveElem = elem.parentNode.parentNode.parentNode;

    moveXOffset = mouseX - parseInt(annotateMoveElem.style.left);
    moveYOffset = mouseY - parseInt(annotateMoveElem.style.top);

    return false; // stop selection of page Image
}

function annotateMouseUp(elem,event)
{
      event = event || window.event;

      annotateMove = false;
      annotateMoveElem = null;

      return true;
}


function setCursorAtXY(x,y)
{
    // Filter out non editable node first... so that can
    // quickely avoid searching
    var cInfo;
    var targetEl = de.getElementAtXY(x, y);

    if (targetEl) {
        if (de.doc.isNodeEditable(targetEl)) {
            //cInfo = de.cursor.getCursorInfoAtXY(x, y, targetEl);
        cInfo = de.cursor.getCursorDescAtXY(x,y,targetEl);
    }
    }

    de.cursor.setCursor(cInfo);
}

function annotateLoseFocus(elem)
{
    //de.cursor.setCursorAtXY(mouseX,mouseY);
    setCursorAtXY(mouseX,mouseY);
}


function annotateGainFocus(elem)
{
    //de.cursor.setCursorAtXY(mouseX,mouseY);
    setCursorAtXY(mouseX,mouseY);
}


var annotate_width = 0;
var max_annotate_width = 9;
var annotate_height = 1;




function keyPress(e)
{
    if (e.keyID == "Escape") { 
       musicStand.cancelPageAnim();
    }

    //var cursorInfo = de.cursor.getCurrentCursorInfo();
    var cursorInfo = de.cursor.getCurrentCursorDesc();

    var newAnnotation = false;

    if (cursorInfo==null) {
        newAnnotation = true;
    }
    else if (expeditee) {
        var overTextElem = de.cursor.getNonCursorNodeAtXY(mouseX,mouseY);
        var overElem = de.doc.getEditableRootNode(overTextElem);

        if (overElem==null) {
        // mouse in white space, but missed an onmouseout event
            de.cursor.setCursor(null);

        newAnnotation = true;
        }
    else {
        var editableElem = de.doc.getEditableRootNode(cursorInfo.textNode);

        if (editableElem.getAttribute("id") != overElem.getAttribute("id")) {
            // cursor is over another editable element (but must have
            // missed onmouseover event)
            // => need to switch cursor location
                var startCursor = de.cursor.createCursor(overElem.firstChild,0,false);
                de.cursor.setCursor(startCursor);
        }
    }

    }

    if (newAnnotation) {
      // control/shift being down marks beginning key accelerators such 
      // as ctrl-r or similar
      // => ignore here, but let it bubble up further

    var isAccelDown = de.events.Keyboard.isAcceleratorDown(e);
    var isShiftDown = e.shiftKey;
    console.log("**** is accel down: " + isAccelDown);
    console.log("**** is shift down: " + isShiftDown);
    //if (e.isAccelDown() || e.isShiftDown()) { return true; }
    if (isAccelDown || isShiftDown) { return true; }

      if (e.keyID == "Escape") { 
          // deactivate cursor !!!???????
          de.cursor.setCursor(null);
          return true; 
      }

      console.log("*** mouse: ("+mouseX+","+mouseY+")");
    
      var newAI = annotate.createAnnotation(mouseX-8,mouseY-14,null,"20"," ");

      var annotateCanvasElem = document.getElementById("annotateCanvas");
      annotateCanvasElem.appendChild(newAI);

      var editableElems = getElementsByClass("editable-",newAI);
      var editableElem = editableElems[0];

      //var startCursor = de.cursor.createCursor(editableElem.firstChild,0,false);
      var startCursor = de.cursor.createCursorDesc(editableElem.firstChild,0,false);
      de.cursor.setCursor(startCursor);

    }
     

}