1 /* js for download progress */

     2 

     3 var debugDownloadSignals = true;

     4 

     5 // Generate HTML to populate download DIV element.

     6 

     7 function downloadProgressHTML()

     8 {

     9     var html =

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

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

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

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

    14         '</div>';

    15 

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

    17 

    18     html +=

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

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

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

    22         '</form>';

    23 

    24     return html;

    25 }

    26 

    27 function downloadErrorHTML(file, error)

    28 {

    29     var html =

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

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

    32 

    33     return html;

    34 }

    35 

    36 function writeDownloadEmpty()

    37 {

    38     document.write(downloadProgressHTML());

    39 }

    40 

    41 // Initialize download DIV.

    42 

    43 function Download()

    44 {

    45     this.write = writeDownloadEmpty;

    46 

    47     this.write();

    48 }

    49 

    50 // Update HTML.

    51 

    52 function setDownloadHTML(html)

    53 {

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

    55     dlElem.innerHTML = html;

    56 }

    57 

    58 function setDownloadFile(file)

    59 {

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

    61     dlFile.innerHTML = file;

    62 }

    63 

    64 function setDownloadPercent(percent)

    65 {

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

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

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

    69 

    70     var outerWidthStyle = outer.style.width;

    71     var innerWidthStyle = inner.style.width;

    72     var counterLeftStyle = counter.style.left;

    73 

    74     var outerWidthNum = parseInt(outerWidthStyle);

    75     var innerWidthNum = parseInt(innerWidthStyle);

    76     var counterLeftNum = parseInt(counterLeftStyle);

    77 

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

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

    80 

    81     counterLeftNum = outerWidthNum + 10 - innerWidthNum;

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

    83 

    84     inner.style.width = innerWidthStyle;

    85     counter.style.left = counterLeftStyle;

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

    87 

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

    89 }

    90 

    91 function setDownloadSize(size, sofar, percent)

    92 {

    93     if (size >= 0) {

    94         setDownloadPercent(percent);

    95     } else {

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

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

    98     }

    99 }

   100 

   101 // Connect to relevant ChromeJSObject signals.

   102 

   103 window.chrome.onDownloadCreated.connect(

   104     function(id) {

   105         if (debugDownloadSignals) {

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

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

   108         }

   109         window.snippets.DownloadId.show();

   110         setDownloadHTML(downloadProgressHTML());

   111     }

   112 );

   113 

   114 window.chrome.onDownloadStarted.connect(

   115     function(id, file, size) {

   116         if (debugDownloadSignals) {

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

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

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

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

   121         }

   122         setDownloadFile(file);

   123     }

   124 );

   125 

   126 window.chrome.onDownloadProgress.connect(

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

   128         if (debugDownloadSignals) {

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

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

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

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

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

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

   135         }

   136         setDownloadFile(file);

   137         setDownloadSize(size, sofar, percent);

   138     }

   139 );

   140 

   141 window.chrome.onDownloadFinished.connect(

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

   143         if (debugDownloadSignals) {

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

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

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

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

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

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

   150         }

   151         setDownloadFile(file);

   152         setDownloadSize(size, sofar, percent);

   153     }

   154 );

   155 

   156 window.chrome.onDownloadPaused.connect(

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

   158         if (debugDownloadSignals) {

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

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

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

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

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

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

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

   166         }

   167         setDownloadHTML(downloadErrorHTML(file, error));

   168     }

   169 );

   170 

   171 window.chrome.onDownloadCancelled.connect(

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

   173         if (debugDownloadSignals) {

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

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

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

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

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

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

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

   181         }

   182         setDownloadHTML(downloadErrorHTML(file, error));

   183     }

   184 );

   185 

   186 window.chrome.onDownloadFailed.connect(

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

   188         if (debugDownloadSignals) {

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

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

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

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

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

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

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

   196         }

   197         setDownloadHTML(downloadErrorHTML(file, error));

   198     }

   199 );

   200 

   201 window.chrome.onDownloadNetworkLoss.connect(

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

   203         if (debugDownloadSignals) {

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

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

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

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

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

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

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

   211         }

   212         setDownloadHTML(downloadErrorHTML(file, error));

   213     }

   214 );

   215 

   216 window.chrome.onDownloadError.connect(

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

   218         if (debugDownloadSignals) {

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

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

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

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

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

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

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

   226         }

   227         setDownloadHTML(downloadErrorHTML(file, error));

   228     }

   229 );