/* js for download progress */

var debugDownloadSignals = true;

// Generate HTML to populate download DIV element.

function downloadProgressHTML()

{

    var html =

        '<div class="DownloadFile" id="DownloadFile"></div>' +

        '<div class="DownloadMeter" id="DownloadMeter" style="width: 200px">' +

            '<div class="DownloadProgress" id="DownloadProgress" style="width: 0px"></div>' +

            '<div class="DownloadCounter" id="DownloadCounter" style="left: 210px"></div>' +

        '</div>';

    // FIXME ;;; replace form with pure div/css button

    html +=

        '<form name="DownloadForm" action="">' +

            '<input type="button" name="DownloadButton" value="Clear" ' +

            'onClick="window.snippets.DownloadId.hide();">' +

        '</form>';

    return html;

}

function downloadErrorHTML(file, error)

{

    var html =

        '<div class="DownloadFile" id="DownloadFile">' + file + '</div>' +

        '<div class="DownloadError" id="DownloadError">ERROR: ' + error + '</div>';

    return html;

}

function writeDownloadEmpty()

{

    document.write(downloadProgressHTML());

}

// Initialize download DIV.

function Download()

{

    this.write = writeDownloadEmpty;

    this.write();

}

// Update HTML.

function setDownloadHTML(html)

{

    var dlElem = document.getElementById("DownloadId");

    dlElem.innerHTML = html;

}

function setDownloadFile(file)

{

    var dlFile = document.getElementById("DownloadFile");

    dlFile.innerHTML = file;

}

function setDownloadPercent(percent)

{

    var outer = document.getElementById("DownloadMeter");

    var inner = document.getElementById("DownloadProgress");

    var counter = document.getElementById("DownloadCounter");

    var outerWidthStyle = outer.style.width;

    var innerWidthStyle = inner.style.width;

    var counterLeftStyle = counter.style.left;

    var outerWidthNum = parseInt(outerWidthStyle);

    var innerWidthNum = parseInt(innerWidthStyle);

    var counterLeftNum = parseInt(counterLeftStyle);

    innerWidthNum = Math.floor(outerWidthNum * percent / 100.0);

    innerWidthStyle = innerWidthStyle.replace(/^\d+/, innerWidthNum);

    counterLeftNum = outerWidthNum + 10 - innerWidthNum;

    counterLeftStyle = counterLeftStyle.replace(/^\d+/, counterLeftNum);

    inner.style.width = innerWidthStyle;

    counter.style.left = counterLeftStyle;

    counter.style.width = "" + (innerWidthNum + 50) + "px";

    counter.innerHTML = "" + percent + "%";

}

function setDownloadSize(size, sofar, percent)

{

    if (size >= 0) {

        setDownloadPercent(percent);

    } else {

        var counter = document.getElementById("DownloadCounter");

        counter.innerHTML = "" + sofar + " bytes";

    }

}

// Connect to relevant ChromeJSObject signals.

window.chrome.onDownloadCreated.connect(

    function(id) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadCreated");

            window.chrome.alert("id=" + id);

        }

        window.snippets.DownloadId.show();

        setDownloadHTML(downloadProgressHTML());

    }

);

window.chrome.onDownloadStarted.connect(

    function(id, file, size) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadStarted");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

        }

        setDownloadFile(file);

    }

);

window.chrome.onDownloadProgress.connect(

    function(id, file, size, sofar, percent) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadProgress");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

        }

        setDownloadFile(file);

        setDownloadSize(size, sofar, percent);

    }

);

window.chrome.onDownloadFinished.connect(

    function(id, file, size, sofar, percent) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadFinished");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

        }

        setDownloadFile(file);

        setDownloadSize(size, sofar, percent);

    }

);

window.chrome.onDownloadPaused.connect(

    function(id, file, size, sofar, percent, error) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadPaused");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

            window.chrome.alert("error=" + error);

        }

        setDownloadHTML(downloadErrorHTML(file, error));

    }

);

window.chrome.onDownloadCancelled.connect(

    function(id, file, size, sofar, percent, error) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadCancelled");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

            window.chrome.alert("error=" + error);

        }

        setDownloadHTML(downloadErrorHTML(file, error));

    }

);

window.chrome.onDownloadFailed.connect(

    function(id, file, size, sofar, percent, error) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadFailed");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

            window.chrome.alert("error=" + error);

        }

        setDownloadHTML(downloadErrorHTML(file, error));

    }

);

window.chrome.onDownloadNetworkLoss.connect(

    function(id, file, size, sofar, percent, error) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadNetworkLoss");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

            window.chrome.alert("error=" + error);

        }

        setDownloadHTML(downloadErrorHTML(file, error));

    }

);

window.chrome.onDownloadError.connect(

    function(id, file, size, sofar, percent, error) {

        if (debugDownloadSignals) {

            window.chrome.alert("JS received signal onDownloadError");

            window.chrome.alert("id=" + id);

            window.chrome.alert("file=" + file);

            window.chrome.alert("size=" + size);

            window.chrome.alert("sofar=" + sofar);

            window.chrome.alert("percent=" + percent);

            window.chrome.alert("error=" + error);

        }

        setDownloadHTML(downloadErrorHTML(file, error));

    }

);