PC World Komputer 2010 April/PCWorld0410.iso/pluginy Firefox/1146/1146.xpi/chrome/screengrab.jar/content/Highlighter.js

Text File | 2009-03-09 | 2KB | 44 lines

screengrab.Highlighter = function(contentWindow, highlightSelectedHandler) {
    this.undoSet = new screengrab.UndoSet();
    this.styleUndoSet = new screengrab.UndoSet();

    var moveListener = this.createOutliner(this.styleUndoSet);
    var upListener = this.createFinishHandler(this, highlightSelectedHandler);

    var contentDocs = new screengrab.Document(contentWindow.document).getDocuments(contentWindow);
    this.addListenersToDocument(contentDocs, upListener, moveListener);
}
screengrab.Highlighter.prototype = {
    addListenersToDocument : function(documents, mouseUp, mouseMove) {
        for (var i = 0; i < documents.length; i++) {
            documents[i].addEventListener("mousemove", mouseMove, true);
            this.undoSet.pushRemoveEventListener("mousemove", mouseMove, documents[i]);

            documents[i].addEventListener("mouseup", mouseUp, true);
            this.undoSet.pushRemoveEventListener("mouseup", mouseUp, documents[i]);
        }
    },
    createFinishHandler : function(me, finishHandler) {
        return function(event) {
            me.undoSet.undo();
            me.styleUndoSet.undo();
            finishHandler(event);
        };
    },
    createOutliner : function(styleUndo) {
        var outliner = function(event) {
            if (event.target && event.target != this.highlighted) {
                this.highlighted = event.target;
                styleUndo.popAndRun();

                var orig = event.target.style.MozOutline;
                styleUndo.pushPropertyChange(event.target.style, "MozOutline", orig);
                event.target.style.MozOutline = "1px solid #ff0000";
            }
        };
        return outliner;
    }
}