How do I make the viewer scroll when dragging text out of the view?

[Justin Jung]

Q: How do I make the viewer scroll when dragging text or adding annotations out of the view, just like the default browser behavior when selecting text?

A: You can add the following to config.js:

var scrollView = $('#DocumentViewer')[0];

var sidePanel = $('#sidePanel');

var notesPanel = $('#notesPanelWrapper');

var shiftPage = function(e) {

  var leftShift = readerControl.sidePanelVisible() ? sidePanel.width() : 0;

  var rightShift = notesPanel.css('display') === 'none' ? 0 : notesPanel.width();

  if (e.pageX < leftShift + 10) {

    scrollView.scrollLeft -= 10;

  } else if (e.pageX > window.innerWidth - rightShift - 10) {

    scrollView.scrollLeft += 10;

  }

};

var mouseLeftDown = function(originalMouseLeftDown) {

  return function() {

    originalMouseLeftDown.apply(this, arguments);

    this.mouseDown = true;

  }

};

var mouseMove = function(originalMouseMove) {

  return function(e) {

    originalMouseMove.apply(this, arguments);

    if (this.mouseDown) {

      shiftPage(e);

    }

  }

};

var mouseLeftUp = function(originalMouseLeftUp) {

  return function() {

    if (this.annotation) {

      readerControl.docViewer.getAnnotationManager().redrawAnnotation(this.annotation);

    }

    originalMouseLeftUp.apply(this, arguments);

    this.mouseDown = false;

  }

};

var textToolMouseLeftDown = Tools.TextTool.prototype.mouseLeftDown;

Tools.TextTool.prototype.mouseLeftDown = mouseLeftDown(textToolMouseLeftDown);

 

var textToolMouseMove = Tools.TextTool.prototype.mouseMove;

Tools.TextTool.prototype.mouseMove = mouseMove(textToolMouseMove);

 

var textToolMouseLeftUp = Tools.TextTool.prototype.mouseLeftUp;

Tools.TextTool.prototype.mouseLeftUp = mouseLeftUp(textToolMouseLeftUp);

var genericAnnotationMouseLeftDown = Tools.GenericAnnotationCreateTool.prototype.mouseLeftDown;

Tools.GenericAnnotationCreateTool.prototype.mouseLeftDown = mouseLeftDown(genericAnnotationMouseLeftDown);;

 

var genericAnnotationMouseMove = Tools.GenericAnnotationCreateTool.prototype.mouseMove;

Tools.GenericAnnotationCreateTool.prototype.mouseMove = mouseMove(genericAnnotationMouseMove);

 

var genericAnnotationMouseLeftUp = Tools.GenericAnnotationCreateTool.prototype.mouseLeftUp;

Tools.GenericAnnotationCreateTool.prototype.mouseLeftUp = mouseLeftUp(genericAnnotationMouseLeftUp);