/*!

  \file urlsearch.js This module contains the UrlSearch class.

*/

var enumObj = new Object();

enumObj.state = {Loading:0, Editing:1, Reloadable:2}

function UrlSearch(lastUrl)

{   

    function onChromeComplete() 

    {

        // When restoring session we're already loading when chrome complete signal is sent

        // So update button and progress to reflect the loading state

        switch (window.pageController.loadState) {

        case enumObj.state.Loading:

            urlBarButton.setButton();

            urlBarProgressBar.setProgress("5%");

            break;

        default:

            urlBarProgressBar.setProgress("0%");

            break;

        }

        //window.snippets.FaviconSnippet.anchorTo("UrlSearchChromeId", 1,5);

        //window.snippets.FaviconSnippet.connectToWebpageController();

        window.pageController.pageUrlChanged.connect(

        function(url) {

            //window.chrome.alert(url);

            //url is coming from loadContoller. So need not set it back

            urlBarTextBox.setTextBoxValue(url);

        }

        );

        window.pageController.pageLoadStarted.connect(

        function() {

            //window.chrome.alert("Load start");

            //window.app.debug("Load start" + window.pageController.currentRequestedUrl);

            window.chrome.slideView(100);

            urlBarProgressBar.setProgress("5%");

            urlBarButton.setButton();

            urlBarTextBox.setTextBoxValue(window.pageController.currentRequestedUrl); 

        }

        );

        window.pageController.pageLoadProgress.connect(

        function(percent) {

            urlBarProgressBar.handlePageLoadProgress(percent);

        }

        );

        window.pageController.pageLoadFinished.connect(

        function(ok) {

        //window.chrome.alert("pageLoadFinished: ");

        // If the load was finished normally and not due to user stopping it,

        // simulate progress completion

        if(!window.pageController.loadCanceled) {

            urlBarProgressBar.setProgress("99%");

        }

        setTimeout("urlsearch.clearPBar()", 500);

        __blockDeselect = false;

        urlBarTextBox.setFocus(false);

        urlBarButton.setButton();

        if (window.views.current().type == "webView") {

            if (window.snippets.UrlSearchChromeId && window.pageController.contentsYPos > 0) {

                window.chrome.slideView(-100);

            }

        }

        }

        );

		    window.pageController.pageCreated.connect(

		    function() {

		    	  window.chrome.slideView(100);

		    	}

		    );

    window.pageController.pageChanged.connect(

    function() {

        //window.chrome.alert("Page  changed");

        // Set the values of the new page 

        setUrlSearchValues();

    }

    );

    // Connect View Manager current view changed signal to slot.

    window.views.currentViewChanged.connect(

        function() {

            if (window.views.current().type ==  "webView") {

                /*window.chrome.alert("currentViewChanged  window.views.current().type =" + window.views.current().type + "Pos " + window.pageController.contentsYPos == 0  + "Loading still: " + pageController.isPageLoading);*/

                // When we change back to content view, show the urlsearch bar if either we are

                // at the top or we are still loading the page (in this case, we will hide the urlsearch bar

                // if needed on getting loadFinished

                if (!window.views.WebView.currentPageIsSuperPage() && 

                    (window.pageController.contentsYPos <= 0 || pageController.isPageLoading) ){

                    // show url bar with no animation

                    //showUrlBar();

                    window.chrome.slideView(100);

                }

                else {

                	window.chrome.slideView(-100);

                } 

                //set the correct values based on the window 

                //window.chrome.alert("currentViewChanged " + window.pageController.loadText);

                setUrlSearchValues();

                // place focus in urlsearch bar when returning from adding a new window in windows view

                if (!window.views.WebView.currentPageIsSuperPage() &&

                    (window.pageController.loadText == "")) {

                    __blockDeselect = false;

                    window.snippets.UrlSearchChromeId.grabFocus();

                    document.getElementById("urlBox").focus();

                    return;

                 }

             } else {

                 //Save url text box value

                 window.pageController.urlTextChanged(urlBarTextBox.getTextBoxValue());

                 // Remove progress bar and url text field value so that 

                 // incorrect values are not seen before we can update when we come back 

                 urlBarTextBox.setTextBoxValue("");

                 urlBarProgressBar.setProgress("0%");

                 //hideUrlBar();

                 window.chrome.slideView(-100);

             }

        }

    );

window.ViewStack.currentViewChanged.connect(

        function() {

            if (window.views.current().type ==  "webView") {

                /*window.chrome.alert("currentViewChanged  window.views.current().type =" + window.views.current().type + "Pos " + window.pageController.contentsYPos == 0  + "Loading still: " + pageController.isPageLoading);*/

                // When we change back to content view, show the urlsearch bar if either we are

                // at the top or we are still loading the page (in this case, we will hide the urlsearch bar

                // if needed on getting loadFinished

                if (!window.views.WebView.currentPageIsSuperPage() && 

                    (window.pageController.contentsYPos <= 0 || pageController.isPageLoading) ){

                    // show url bar with no animation

                    //showUrlBar();

                    window.chrome.slideView(100);                    

                }

                else {

                	window.chrome.slideView(-100);                	

                } 

                //set the correct values based on the window 

                //window.chrome.alert("currentViewChanged " + window.pageController.loadText);

                setUrlSearchValues();

                // place focus in urlsearch bar when returning from adding a new window in windows view

                if (window.pageController.loadText == "") {

                    __blockDeselect = false;

                    window.snippets.UrlSearchChromeId.grabFocus();

                    document.getElementById("urlBox").focus();

                    return;

                 }

             } else {

                 //Save url text box value

                 window.pageController.urlTextChanged(urlBarTextBox.getTextBoxValue());

                 // Remove progress bar and url text field value so that 

                 // incorrect values are not seen before we can update when we come back 

                 urlBarTextBox.setTextBoxValue("");

                 urlBarProgressBar.setProgress("0%");

                 //hideUrlBar();

                 window.chrome.slideView(-100);

             }

        }

    );

    // Connect snippets CR signal to slot.

    window.chrome.symbianCarriageReturn.connect(

        function() {

            if (urlBarTextBox.hasFocus()) {

                // When we get load started, the button will be changed

                loadToMainWindow(urlBarTextBox.getTextBoxValue());

            }

        }

    );

    } //End of onChromeComplete handler

    /*!

      Class to handle displaying and updating the URL text box.

    */

    function UrlTextBox()

    {

    }

    //! UrlTextBox Public Methods

    UrlTextBox.prototype.getTextBoxValue = function()

    {

        return document.gotoUrlForm.textBox.value;

    }

    UrlTextBox.prototype.setTextBoxValue = function(text)

    {

        //window.chrome.alert("setTextBoxValue" + text);

        document.gotoUrlForm.textBox.value = text;

    }

    // Unused Method

    UrlTextBox.prototype.textBoxFocus = function()

    {

        document.gotoUrlForm.textBox.focus();

    }

    UrlTextBox.prototype.hasFocus = function()

    {

        return document.getElementById("urlBox").hasFocus;

    }

    UrlTextBox.prototype.setFocus = function(hasFocus)

    {

        document.getElementById("urlBox").hasFocus = hasFocus;

    }

    /*!

      Class to handle displaying and updating the URL tri-state button.

    */

    function UrlTriStateButton()

    {

    }

    //! UrlTriStateButton Public Methods

    UrlTriStateButton.prototype.setButton = function()

    {

        //window.app.debug("setButton ");

        btnDom = document.getElementById("tristateBtn").button;

        switch (window.pageController.loadState) {

        case enumObj.state.Loading:

            btnDom.updateImages("urlsearch.snippet/icons/stop_btn.png",

                                    "urlsearch.snippet/icons/stop_btn_pressed.png",

                                    "urlsearch.snippet/icons/stop_btn.png");

            break;

        case enumObj.state.Editing:

            btnDom.updateImages("urlsearch.snippet/icons/go_btn.png",

                                "urlsearch.snippet/icons/go_btn_pressed.png",

                                "urlsearch.snippet/icons/go_btn.png");

            break;

         case enumObj.state.Reloadable:

            btnDom.updateImages("urlsearch.snippet/icons/refresh_btn.png",

                                    "urlsearch.snippet/icons/refresh_btn_pressed.png",

                                    "urlsearch.snippet/icons/refresh_btn.png");

            break;

         default:

            window.App.debug("Incorrect state");

            break;

        }

        document.getElementById("tristateBtn").button.updateButton();

        // Don't need repaint anymore?

        //if (window.snippets.UrlSearchChromeId) {

        //    window.snippets.UrlSearchChromeId.repaint();

        //}

    }

    // Unused Method

    UrlTriStateButton.prototype.changeTriState = function(a)

    {

       if (this.getValue() != a) {

            this.setValue(a);

            /* Shouln't have to do this check. This function should be 

             * called only after chrome has completed loading which 

             * means that all snippets have also been created.

             */

            if (window.snippets.UrlSearchChromeId) {

                window.snippets.UrlSearchChromeId.repaint();

            } 

       }

    }

    /*!

      Class to handle displaying and updating the URL progress bar.

    */

    function UrlProgressBar()

    {

        this.oldpercent = 0;

    }

    //! UrlProgressBar Public Methods

    UrlProgressBar.prototype.setProgress = function(widthStr)

    {

        document.getElementById("PBar").style.width = widthStr;

    }

    UrlProgressBar.prototype.handlePageLoadProgress = function(percent)

    {

        this.updateProgress(percent);

    }

    UrlProgressBar.prototype.updateProgress = function(percent)

    {

        if (percent != 100) {

            //window.chrome.alert("Load prog "+percent);

            var parentWidth = document.getElementById("textEntryCell").offsetWidth;

            this.setProgress((parentWidth * percent)/100 + "px");

        } else {

            //clearProgressBar();

            this.setProgress("0%");

            oldpercent = 0;

        }

    }

    // UrlSearch Private Member Variables

    var animator;

    var animating = false;

    var defaultPos;

    var defaultHeight;

    var animateDuration = 500;

    var __blockDeselect = false;

    var urlBarTextBox = new UrlTextBox();

    var urlBarButton = new UrlTriStateButton();

    var urlBarProgressBar = new UrlProgressBar();

    // UrlSearch Private Methods

    function _urlsearch_write(lastUrl) {

        var html = '' +

            '<div id="urlsearchSnippet">' +

                    '<div class = "tableMain" id="mainLayoutTable">' +

                        '<div class = "tableRow" id="mainLayoutRow">' +

                                    '<div class = "tableCell mainLayoutCell" id = "inputboxl"></div>' +

                            '<div class = "mainLayoutCell" id = "inputboxc">' +

                                '<form name = "gotoUrlForm">' +

                                '<div class = "tableRow">' +

                                    '<div class = "tableCell" id = "textEntryCell">' +

                                    '<input type ="text" id = "urlBox" name = "textBox" value="' + lastUrl + '" '  +

                                    'maxlength="256" '+

                                    		'OnFocus="urlsearch.focusElement(this,event)" '+

                                    		'OnMouseUp="return urlsearch.mouseUpElement(this,event)" '+

                                    		'OnMouseDown="urlsearch.mouseDownElement(this,event)" '+

                                    		'OnBlur="urlsearch.mouseOutElement(this,event)" '+

                                    		'OnKeyUp="urlsearch.resetTriState();"/>' +

                                      	'<div id="PBar"></div>' +

                                      '</div>' +

                                    '<div class = "tableCell" id = "tristateBtnCell">' +

                                    '<img id="tristateBtn">' +

                                        '</div>' +

                                '</div>' +

                                '</form>' +

                            '</div>' +

                        '<div class = "tableCell" id = "inputboxr"></div>' +

                        '</div>' +

                    '</div>' +

                        '</div>';

        document.write(html);

    }

    function loadToMainWindow(gotourl){

        var gotourl = window.pageController.guessUrlFromString(gotourl);

        urlBarTextBox.setTextBoxValue(gotourl);

        window.pageController.currentLoad(gotourl);

        window.pageController.urlTextChanged(gotourl);

    }

    function setUrlSearchValues()

    {

          //window.app.debug("seturlsearchvalues")

        urlBarTextBox.setTextBoxValue(window.pageController.loadText);

        urlBarButton.setButton();

        //window.chrome.alert("setProgress " + "New: " +  window.pageController.loadProgressValue +  " Old Value: " + oldpercent );

        var percent = window.pageController.loadProgressValue;

        urlBarProgressBar.updateProgress(percent);

        if (percent == 100) {

            __blockDeselect = false;

            urlBarTextBox.setFocus(false);

        }

        //window.snippets.UrlSearchChromeId.repaint();

    }

    function chromeAlert(){

        window.chrome.alert("chrome Alert!");

    }

    // Public Methods

    this.focusElement = function(el, event)

    {

        el.select();

        __blockDeselect = true;

        document.getElementById("urlBox").scrollLeft = 1000;

        urlBarTextBox.setFocus(true);

    }

		this.mouseOutElement = function(el, event)

    {

        __blockDeselect = false;

        el.scrollRight = 0;

        urlBarTextBox.setFocus(false); 

    }

    this.mouseDownElement = function(el, event)

    {

        // Clear __justSelected in case the element gained focus through some non-mouse event

        // and still has focus.

         __blockDeselect = false;

    }

    this.mouseUpElement = function(el, event)

    {

        // Return false to prevent Qt from deselecting the text if we've just selected it

        // in focusElement(), return true otherwise.

        var result = !__blockDeselect;

        __blockDeselect = false;

        return result;

    }

    this.clearPBar = function()

    {

        urlBarProgressBar.setProgress("0%");

    }

    this.pushTriState = function()

    {

        //window.app.debug("pushTriState ");

        switch (window.pageController.loadState) {

        case enumObj.state.Loading:

            //window.chrome.alert("In loading state, stop loading");

            window.pageController.currentStop();

            setTimeout("urlsearch.clearPBar()", 50);

            break;

        case enumObj.state.Editing:

            //window.chrome.alert("In editing state, start loading");

            loadToMainWindow(urlBarTextBox.getTextBoxValue());

            break;

        case enumObj.state.Reloadable:

            //window.chrome.alert("In reloadable state, start reloading");

            window.pageController.currentReload();

            break;

        default:

            window.chrome.alert("Incorrect state");

            break;

        }

        urlBarButton.setButton();

    }

    this.resetTriState = function()

    {

        //window.app.debug("resetTriState");

        if(window.pageController.loadState == enumObj.state.Reloadable) {

            urlBarTextBox.setFocus(true);

            //window.chrome.alert("Change to editing");

            window.pageController.setLoadState(enumObj.state.Editing);

            urlBarButton.setButton();

        }

    }

    this.updateSuggests = function()

    {

       var text = urlBarTextBox.getTextBoxValue();

       if (text.length == 0) {  // hide the suggests if no text

           searchSuggests.hideSuggests();

           return;

       }

       if (text.length >= 8) { // only for demo

           searchSuggests.hideSuggests();

           return

       }

       searchSuggests.removeAllItems();

       searchSuggests.addItem(text);

       var i = 0;

       var n = 100;

       for (i = text.length; i < 8; i += 1, n += 100)

           searchSuggests.addItem(text + n);

       searchSuggests.showSuggests();

    }

    // UrlSearch Constructor

    window.chrome.chromeComplete.connect(onChromeComplete);    

    // do setup

    _urlsearch_write(lastUrl);

    // Init the button

    new SimpleButton("tristateBtn",

                     "urlsearch.snippet/icons/goto.png",

                     "urlsearch.snippet/icons/goto_pushed.png",

                     "urlsearch.snippet/icons/goto.png",

                     this.pushTriState);

}