var log = false;

ReflowReaderFrame = function(parentId, id, documentPath, templatePath, articleId, enginePath) {
    if(log) console.log("Reader - constructor", parentId, id);

    this.id = id;
    this.documentPath = documentPath;
    this.templatePath = templatePath;
    this.startingArticle = articleId;
    this.enginePath = enginePath;
    if(!enginePath)
        this.enginePath =  "reflow/core/reader.html";


    this.iframe = document.createElement('iframe');
    this.iframe.id = id;
    this.iframe.scolling = 'auto';
    this.iframe.overflow = 'hidden';
    this.iframe.frameborder = 0;
    this.iframe.style.position = 'relative';
    this.iframe.style.display = "block";
    this.iframe.style.backgroundColor = "white";
    this.setRect();



    this.parentDiv = document.getElementById(parentId);
    if(this.parentDiv){
        if(log) console.log("Reader - constructor, parentDiv=",this.parentDiv);
        this.parentDiv.appendChild(this.iframe);
    }else{
        if(log) console.log("Reader - constructor, parent div not found...");
    }
};

//Methods
ReflowReaderFrame.prototype.setRect = function() {
    this.iframe.style.left = 0;
    this.iframe.style.top = 0;
   this.iframe.width = "100%";
   this.iframe.height = "100%";

};

ReflowReaderFrame.prototype.onReaderLoaded= function(){
        this.iframe.contentWindow.AF.notificatorHandler = this;
};

ReflowReaderFrame.prototype.reload = function() {
    var obj = this;
    this.iframe.addEventListener("load", function (){obj.onReaderLoaded.apply(obj)}, true);
    var src = this.enginePath + "?documentUrl=" + this.documentPath + "&templateUrl=" +this.templatePath;
    if(this.startingArticle){
        src += "&articleId="+ this.startingArticle;
        this.startingArticle = null;
    }
    this.iframe.src = src;
};

ReflowReaderFrame.prototype.changeArticle = function(articleId) {
    if( this.iframe.contentWindow.AF.reader){
        this.iframe.contentWindow.AF.reader.gotoArticle(articleId);
    }
};


ReflowReaderFrame.prototype.handleReaderNotification = function(notification) {
    if(log) console.log("handleReaderNotification",notification);
    handleReflowReaderNotification(this.id, notification);

};

var reflowReaderFrames = new Object();

function createReflowReaderFrame(id, documentPath, templatePath, articleId, enginePath) {
    if(log) console.log("createReflowReaderFrame",id,documentPath);

    if(reflowReaderFrames[id]) {
        return;
    }
    reflowReaderFrames[id] = new ReflowReaderFrame("reflowReaderFrame", id, documentPath, templatePath, articleId, enginePath);

}

function showReflowReaderFrame(id) {
    if(log) console.log("showReflowReaderFrame",id);

    if (reflowReaderFrames[id])
    {
        if( reflowReaderFrames[id].parentDiv)
        {
            if(reflowReaderFrames[id].parentDiv.style.display != "block")
                reflowReaderFrames[id].parentDiv.style.display = "block";

            reflowReaderFrames[id].parentDiv.style.visibility = "visible";
            reflowReaderFrames[id].parentDiv.style.zIndex = "1";
        }
    }
}

function hideReflowReaderFrame(id) {
    if(log) console.log("hideReflowReaderFrame",id);

    if (reflowReaderFrames[id])
    {
        if( reflowReaderFrames[id].parentDiv)
        {
            reflowReaderFrames[id].parentDiv.style.display = "none";
            reflowReaderFrames[id].parentDiv.style.visibility = "hidden";
            reflowReaderFrames[id].parentDiv.style.zIndex = "-1";
        }
    }
}

function reloadReflowReaderFrame(id) {
    if(log) console.log("reloadReflowReaderFrame",id);

    if (reflowReaderFrames[id])
    {
        reflowReaderFrames[id].reload();
    }
}

function removeReflowReaderFrame(id) {
    if(log) console.log("removeReflowReaderFrame",id);

    if (reflowReaderFrames[id])
    {
        reflowReaderFrames[id].remove();
        reflowReaderFrames[id] = null;
    }
}

function changeReflowReaderFrameArticle(id, articleId) {
    if(log) console.log("removeReflowReaderFrameArticle",id);

    if (reflowReaderFrames[id])
    {
        reflowReaderFrames[id].changeArticle(articleId);
    }
}





if(log) console.log("reflowHelper.js -> script executed");