How to use the events.Event function in events

this.clippingChanged.add(this.clippingFrameChanged.bind(this));

    var dom = this.domNode;
    dom.style.cursor = "text";
    dom.addEventListener('click', this.click.bind(this), false);
    dom.addEventListener('mousedown', this.mouseDown.bind(this), false);
    dom.addEventListener('mousemove', this.mouseMove.bind(this), false);
    window.addEventListener('mouseup', this.mouseUp.bind(this), false);

    editor.willChangeBuffer.add(this.editorWillChangeBuffer.bind(this));

    // Changeevents.
    this.selectionChanged = new Event();
    this.beganChangeGroup = new Event();
    this.endedChangeGroup = new Event();
    this.willReplaceRange = new Event();
    this.replacedCharacters = new Event();

    this.textInput = new TextInput(container, this);
};

exports.View = function(node){
    this.node = node;

    // Setup the event.
    this.dimensionEvent = new Event();

    // Render the view.
    this.render(true);
};

right: 30
    };

    this.clippingChanged.add(this.clippingFrameChanged.bind(this));

    var dom = this.domNode;
    dom.style.cursor = "text";
    dom.addEventListener('click', this.click.bind(this), false);
    dom.addEventListener('mousedown', this.mouseDown.bind(this), false);
    dom.addEventListener('mousemove', this.mouseMove.bind(this), false);
    window.addEventListener('mouseup', this.mouseUp.bind(this), false);

    editor.willChangeBuffer.add(this.editorWillChangeBuffer.bind(this));

    // Changeevents.
    this.selectionChanged = new Event();
    this.beganChangeGroup = new Event();
    this.endedChangeGroup = new Event();
    this.willReplaceRange = new Event();
    this.replacedCharacters = new Event();

    this.textInput = new TextInput(container, this);
};

// TODO: This is for debug purpose only and should go away again.
    // bespin.editor = this;

    this.elementAppended = new Event();

    this.element = this.container = document.createElement("div");

    var container = this.container;
    container.style.overflow = 'hidden';
    container.style.position = 'relative';

    this.scrollOffsetChanged = new Event();
    this.willChangeBuffer = new Event();

    this.selectionChanged = new Event();
    this.textChanged = new Event();

    var gutterView = this.gutterView = new GutterView(container, this);
    var textView = this.textView = new TextView(container, this);
    var verticalScroller = this.verticalScroller = new ScrollerView(this, Scroller.LAYOUT_VERTICAL);
    var horizontalScroller = this.horizontalScroller = new ScrollerView(this, Scroller.LAYOUT_HORIZONTAL);

    this.editorUndoController = new EditorUndoController(this);
    this.searchController = new EditorSearchController(this);

    this._textViewSize = this._oldSize = {
        width: 0,
        height: 0
    };

    this._themeData = editorThemeData;

exports.EditorView = function(initialContent) {
    // TODO: This is for debug purpose only and should go away again.
    // bespin.editor = this;

    this.elementAppended = new Event();

    this.element = this.container = document.createElement("div");

    var container = this.container;
    container.style.overflow = 'hidden';
    container.style.position = 'relative';

    this.scrollOffsetChanged = new Event();
    this.willChangeBuffer = new Event();

    this.selectionChanged = new Event();
    this.textChanged = new Event();

    var gutterView = this.gutterView = new GutterView(container, this);
    var textView = this.textView = new TextView(container, this);
    var verticalScroller = this.verticalScroller = new ScrollerView(this, Scroller.LAYOUT_VERTICAL);
    var horizontalScroller = this.horizontalScroller = new ScrollerView(this, Scroller.LAYOUT_HORIZONTAL);

    this.editorUndoController = new EditorUndoController(this);
    this.searchController = new EditorSearchController(this);

    this._textViewSize = this._oldSize = {
        width: 0,
        height: 0
    };

    this._themeData = editorThemeData;

this.command = options.command;
    this.commandExt = options.commandExt;

    // Will be used only in the cli case
    this.args = options.args;
    this.typed = options.typed;

    // Have we been initialized?
    this._begunOutput = false;

    this.start = new Date();
    this.end = null;
    this.completed = false;
    this.error = false;

    this.changed = new Event();
};

exports.EditorView = function(initialContent) {
    this.elementAppended = new Event();

    this.element = this.container = document.createElement("div");

    var container = this.container;
    container.style.overflow = 'visible';
    container.style.position = 'relative';

    this.scrollOffsetChanged = new Event();
    this.willChangeBuffer = new Event();

    this.selectionChanged = new Event();
    this.textChanged = new Event();

    var gutterView = this.gutterView = new GutterView(container, this);
    var textView = this.textView = new TextView(container, this);
    var verticalScroller = new ScrollerView(this, scroller.LAYOUT_VERTICAL);
    var horizontalScroller = new ScrollerView(this,
        scroller.LAYOUT_HORIZONTAL);
    this.verticalScroller = verticalScroller;
    this.horizontalScroller = horizontalScroller;

    this.completionController = new CompletionController(this);
    this.editorUndoController = new EditorUndoController(this);
    this.searchController = new EditorSearchController(this);

    this._textViewSize = this._oldSize = { width: 0, height: 0 };

exports.EditorView = function(initialContent) {
    this.elementAppended = new Event();

    this.element = this.container = document.createElement("div");

    var container = this.container;
    container.style.overflow = 'visible';
    container.style.position = 'relative';

    this.scrollOffsetChanged = new Event();
    this.willChangeBuffer = new Event();

    this.selectionChanged = new Event();
    this.textChanged = new Event();

    var gutterView = this.gutterView = new GutterView(container, this);
    var textView = this.textView = new TextView(container, this);
    var verticalScroller = new ScrollerView(this, scroller.LAYOUT_VERTICAL);
    var horizontalScroller = new ScrollerView(this,
        scroller.LAYOUT_HORIZONTAL);
    this.verticalScroller = verticalScroller;
    this.horizontalScroller = horizontalScroller;

    this.completionController = new CompletionController(this);
    this.editorUndoController = new EditorUndoController(this);
    this.searchController = new EditorSearchController(this);

    this._textViewSize = this._oldSize = { width: 0, height: 0 };

    this._themeData = editorThemeData;

exports.EditorView = function(initialContent) {
    this.elementAppended = new Event();

    this.element = this.container = document.createElement("div");

    var container = this.container;
    container.style.overflow = 'visible';
    container.style.position = 'relative';

    this.scrollOffsetChanged = new Event();
    this.willChangeBuffer = new Event();

    this.selectionChanged = new Event();
    this.textChanged = new Event();

    var gutterView = this.gutterView = new GutterView(container, this);
    var textView = this.textView = new TextView(container, this);
    var verticalScroller = new ScrollerView(this, scroller.LAYOUT_VERTICAL);
    var horizontalScroller = new ScrollerView(this,
        scroller.LAYOUT_HORIZONTAL);
    this.verticalScroller = verticalScroller;
    this.horizontalScroller = horizontalScroller;

    this.completionController = new CompletionController(this);
    this.editorUndoController = new EditorUndoController(this);
    this.searchController = new EditorSearchController(this);

    this._textViewSize = this._oldSize = { width: 0, height: 0 };

    this._themeData = editorThemeData;

exports.EditorView = function(initialContent) {
    this.elementAppended = new Event();

    this.element = this.container = document.createElement("div");

    var container = this.container;
    container.style.overflow = 'visible';
    container.style.position = 'relative';

    this.scrollOffsetChanged = new Event();
    this.willChangeBuffer = new Event();

    this.selectionChanged = new Event();
    this.textChanged = new Event();

    var gutterView = this.gutterView = new GutterView(container, this);
    var textView = this.textView = new TextView(container, this);
    var verticalScroller = new ScrollerView(this, scroller.LAYOUT_VERTICAL);
    var horizontalScroller = new ScrollerView(this,
        scroller.LAYOUT_HORIZONTAL);
    this.verticalScroller = verticalScroller;
    this.horizontalScroller = horizontalScroller;

    this.completionController = new CompletionController(this);
    this.editorUndoController = new EditorUndoController(this);
    this.searchController = new EditorSearchController(this);