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ui.js
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ui.js
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var annotationTimeModified = false;
var annotationDialogOpen = false;
var viewAllAnnotations = true; // should default to true because students should see instructor's and TA's comment and vice versa.
var playheadMouseup = false;
// true if viewing/adding 'annotations' false if viewing/adding 'comments'
var annotationMode = true;
// true if in 'psycMode' and 'Add Annotation' button is being pressed
var psycModeAnnotating = false;
var videoAnnotationEntryID = null;
var annotations = [];
var comments = [];
// array index of currently open annotation dialog
var openAnnotationIndex = null;
// the time the user clicks "Add Annotation"
var createAnnotationStartTime;
// time of the currently active dialog (applies to pre-existing annotations only)
var dialogAnnotationStartTime;
var dialogAnnotationEndTime;
// seek time of the currently active dialog (applies to pre-existing annotations only)
var startTimeSeekPosition = 0;
var intervalID;
/*** CONSTANTS ***/
// seconds to seek at a time
var seekSpeed = 1;
var CONFIRMED = 1;
// set to dimension of video player
var sliderWidth = 550;
// current annotation-item
var currentPreviewItem = null;
function confirmDelete() {
if (annotationMode) {
type = "annotation";
list = annotations;
} else {
type = "comment";
list = comments;
}
debug("vid_anno_id " + list[openAnnotationIndex].videoAnnotationID);
if (confirm("Are you sure you want to delete this " + type + "?")) {
deleteAnnotation(list[openAnnotationIndex].id, list[openAnnotationIndex].videoAnnotationID);
}
}
function isVideoAnnotation(videoAnnotationID) {
if (newAnnotation()) {
return ("video" == $('#annotation-type').val());
} else {
// assert: pre-existing annotation
if (null == videoAnnotationID || undefined == videoAnnotationID || "null" == videoAnnotationID) {
return false;
} else {
return true;
}
}
}
function playerSee() {
// alert("Calling the playerSeek method!");
// alert($('#annotation-start-time').text());
// var val = parseFloat($('#seekPercent').attr("value"));
//alert("The value returned by the playerSeek is: " + playerSeek());
// val = parseInt(val, 10)/100;
// var player=$('#player').get(0);
//player.doSeek(val);
var val = $('#annotation-start-time').text();
var a = val.split(':');
var seconds = (+a[0]) * 60 * 60 + (+a[1]) * 60 + (+a[2]);
// alert(seconds);
player1.seekTo(seconds);
}
function setAnnotationWindow(startTime, endTime, tags, description, isPrivate, ID, userID, userName, videoAnnotationID) {
description = $.trim(description);
var saveButton = '<a href="#" id="save_annotation" class="dialog-buttons" target="_self" onClick="saveAnnotation();">Save</a>';
var cancelButton = '<a href="#" id="cancel_annotation" class="dialog-buttons" target="_self" onClick="closeAnnotationDialog();">Close</a>';
var editButton = '<a href="#" id="edit_annotation" class="dialog-buttons" target="_self" onClick="updateAnnotation(' + ID + ');" >Update</a>';
var deleteButton = '<a class="dialog-buttons" href="javascript:confirmDelete()" >Delete</a>';
var playButton = '<a href="#" id="play_annotation" class="dialog-buttons" target="_self" onClick="playerSee();"; >Play</a>';
setAnnotationFormValues(tags, description, isPrivate);
showAnnotationForm();
$('#webcam').css('display', 'none'); // WEBCAM ANNOTATION:
$('#annotation-form select').removeAttr('disabled');
$('#annotation-form select').val('annotation').attr('selected', true);
(annotationMode) ? list = annotations : list = comments;
var html;
if (annotationMode) {
$('.annotation-label > #annotation-type').parent().css('display', 'inline-block');
if (newAnnotation()) {
html = "<br /><br />" + saveButton + cancelButton;
$('#annotation-title').html("Add Annotation");
var startTime = getCurrentYouTime();
openAnnotationIndex = null;
setFormWritable();
editStartTime(false);
videoAnnotationEntryID = null;
} else {
// pre-existing annotation
if (isVideoAnnotation(videoAnnotationID)) {
$('#annotation-form select').val('video').attr('selected', true);
videoAnnotationEntryID = videoAnnotationID;
showPlayer(videoAnnotationID);
} else {
$('#annotation-form select').val('annotation').attr('selected', true);
}
// annotation mode readonly for editing
$('#annotation-form select').attr('disabled', 'disabled');
if ("true" == list[openAnnotationIndex].myAnnotation) {
// annotation authored by user
html = "<br /><br />" + playButton + editButton + deleteButton + cancelButton;
if (annotationMode) $('.controls img').css("display", "inline-block");
setFormWritable();
editStartTime(true);
$('#annotation-title').html("Edit Annotation (" + userName + ")");
} else {
// annotation NOT authored by user
html = "<br /><br />" + playButton + cancelButton;
setFormReadonly();
editStartTime(false);
$('#annotation-title').html("View Annotation (" + userName + ")");
}
startTimeSeekPosition = 0;
}
} else {
// this is a comment
$('.annotation-label > #annotation-type').parent().css('display', 'none');
$('#start-time-rwd, #start-time-fwd, #annotation-start-time').css("display", "none");
if (newAnnotation()) {
$('#annotation-title').html("Add Comment");
setFormWritable();
// new comment
html = "<br /><br />" + saveButton + cancelButton;
// feedback form with points will display after submit the general comments form.
} else {
// pre-existing comment
debug("openAnnotationIndex: " + openAnnotationIndex);
if ("true" == list[openAnnotationIndex].myAnnotation) {
// comment authored by user
$('#annotation-title').html("Edit Comment");
setFormWritable(false);
html = "<br /><br />" + editButton + deleteButton + cancelButton;
// feedback form with points will display after the user update the general comments form.
} else {
// authored by others
$('#annotation-title').html("View Comment");
setFormReadonly();
html = "<br /><br />" + cancelButton;
}
}
}
setDialogStartTime(startTime);
annotationDialogOpen = true;
$('#form-buttons').html(html);
}
function setFeedbackWindow(startTime, endTime, tags, description, isPrivate, ID, userID, userName, videoAnnotationID) {
description = $.trim(description);
var saveButton = '<a href="#" id="save_annotation" class="dialog-buttons" target="_self" onClick="saveAnnotation();">Save</a>';
var cancelButton = '<a href="#" id="cancel_annotation" class="dialog-buttons" target="_self" onClick="closeAnnotationDialog();">Close</a>';
var editButton = '<a href="#" id="edit_annotation" class="dialog-buttons" target="_self" onClick="updateAnnotation(' + ID + ');" >Update</a>';
var deleteButton = '<a class="dialog-buttons" href="javascript:confirmDelete()" >Delete</a>';
var playButton = '<a href="#" id="play_annotation" class="dialog-buttons" target="_self" onClick="playerSeek();"; >Play</a>';
setFeedbackFormValues(tags, description, isPrivate);
showFeedbackForm();
$('#webcam').css('display', 'none'); // WEBCAM ANNOTATION:
$('#annotation-form1 select').removeAttr('disabled');
$('#annotation-form1 select').val('annotation').attr('selected', true);
$('#annotation-tags').css('display', 'none');
$('#annotation-description').css('display', 'none');
var html;
// this is a comment
$('.annotation-label > #annotation-type').parent().css('display', 'none');
$('#start-time-rwd, #start-time-fwd, #annotation-start-time').css("display", "none");
$('.annotation-label').css("display", "none");
// if (newAnnotation()) {
$('#annotation-title').html("Feedback");
$('.annotation-label').html("Is this video talked about unisa");
//setFormWritable();
// new comment
html = "<br /><br />" + saveButton + cancelButton;
// }
// else {
// pre-existing comment
// debug("openAnnotationIndex: " + openAnnotationIndex);
// if ("true" == list[openAnnotationIndex].myAnnotation) {
// comment authored by user
// $('#annotation-title').html("Edit Comment");
// setFormWritable(false);
// html = "<br /><br />" + editButton + deleteButton + cancelButton;
// } else {
// authored by others
// $('#annotation-title').html("View Comment");
// setFormReadonly();
// html = "<br /><br />" + cancelButton;
// }
// }
setDialogStartTime(startTime);
annotationDialogOpen = true;
$('#form-buttons').html(html);
}
function editStartTime(display) {
var rule;
(display) ? rule = "inline-block" : rule = "none";
$('#annotation-start-time').css('display', 'inline-block');
$('#start-time-rwd, #start-time-fwd').css('display', rule);
}
function setFormWritable() {
$('#annotation-description').removeAttr('readonly');
$('#annotation-tags').removeAttr('readonly');
$('#annotation-privacy').removeAttr('readonly');
$('#annotation-privacy').css('display', 'inline-block');
$('#annotation-privacy').parent().css('display', 'inline-block');
}
function setFormReadonly() {
$('#start-time-rwd, #start-time-fwd, #annotation-start-time').css("display", "none");
$('#annotation-description').attr('readonly', 'readonly');
$('#annotation-tags').attr('readonly', 'readonly');
$('#annotation-privacy').attr('readonly', 'readonly');
$('#annotation-privacy').css('display', 'none');
$('#annotation-privacy').parent().css('display', 'none');
}
function setDialogStartTime(startTime) {
var startTimeDisplay = formatISO(startTime);
$('#annotation-start-time').html(startTimeDisplay);
}
function formatISO(seconds) {
var hours = parseInt(seconds / (60 * 60));
var rest = parseInt(seconds % (60 * 60));
var minutes = parseInt(rest / 60);
rest = parseInt(rest % 60);
var seconds = parseInt(rest);
var millis = parseInt(rest);
return doubleDigits(hours) + ":" + doubleDigits(minutes) + ":" + doubleDigits(seconds);
}
function doubleDigits(value) {
if (value > 9) {
return value;
} else {
return "0" + value;
}
}
function fadeOutComments(fade) {
(fade) ? opacity = "0.4" : opacity = "1.0";
$('#comments').css('opacity', opacity);
}
function fadeOutFeedbacks(fade) {
(fade) ? opacity = "0.4" : opacity = "1.0";
$('#feedbacks').css('opacity', opacity);
}
function showAnnotationWindow() {
fadeOutComments(true);
ATTENTIONAL_DELAY = 3;
if (annotationChanged()) {
// exit
alertAnnotationChanged();
return;
} else {
createAnnotationStartTime = Math.floor(getCurrentYouTime());
createAnnotationStartTimeWDelay = (createAnnotationStartTime > ATTENTIONAL_DELAY) ?
(createAnnotationStartTime - ATTENTIONAL_DELAY) : createAnnotationStartTime;
if (annotationMode) {
// iterate through to check if annotation already exists for given time
for (i = 0; i < annotations.length; i++) {
var myAnnotation = annotations[i].myAnnotation;
var startTime = annotations[i].startTime;
if (("true" == myAnnotation)
&& (startTime == createAnnotationStartTimeWDelay)
&& annotationMode) {
alert("You already have an annotation at " + createAnnotationStartTimeWDelay + " seconds.\n" +
"You can update or delete the current annotation.");
fadeOutComments(false);
return;
}
}
}
openAnnotationIndex = null;
setAnnotationWindow(null, null, null, null, null, null, null, null);
annotationDialogOpen = true;
if (annotationMode) {
// TODO: look at UI configurations before auto-closing annotation
// saveAnnotation();
}
}
}
function showFeedbackWindow() {
if (!annotationMode) {
//alert(yesChecked);
fadeOutComments(true);
showFeedbackForm();
//setFeedbackWindow(null, null, null, null, null, null, null, null);
}
}
function setAnnotationFormValues(tags, description, isPrivate) {
var description = $.trim(description);
$('#annotation-tags').val(tags);
$('#annotation-description').val(description);
if (parseInt(isPrivate)) {
$('#annotation-privacy').attr('checked', 'checked');
} else {
$('#annotation-privacy').removeAttr('checked');
}
}
function setFeedbackFormValues(tags, description, isPrivate) {
tags = "Is this video talked about UniSA?";
description = null;
}
function showAnnotation(ID, annotationView) {
if (annotationChanged()) {
alertAnnotationChanged();
return;
}
var found = false;
var list;
(annotationView) ? list = annotations : list = comments;
for (i = 0; i < list.length; i++) {
if (ID == list[i].id) {
var startTime = list[i].startTime;
var endTime = list[i].endTime;
var tags = list[i].tags;
var description = list[i].description;
var userID = list[i].userID;
var userName = list[i].userName;
var isPrivate = list[i].isPrivate;
dialogAnnotationStartTime = list[i].startTime;
dialogAnnotationEndTime = list[i].endTime;
openAnnotationIndex = i;
setAnnotationWindow(startTime, endTime, tags, description, isPrivate, list[i].id, userID, userName, list[i].videoAnnotationID);
found = true;
}
}
if (!found) alert("error - ID:" + ID + " not found");
}
function alertAnnotationChanged() {
if (newAnnotation()) {
var cancelButton = '<a href="#" id="cancel_annotation" class="dialog-buttons" target="_self" onClick="closeAnnotationDialog(' + CONFIRMED + ');">close</a>';
var editButton = '<a href="#" id="edit_annotation" style="padding:0px" class="dialog-buttons" target="_self" onClick="saveAnnotation();" >save</a>';
} else {
// pre-existing annotation
ID = annotations[openAnnotationIndex].id;
var editButton = '<a href="#" id="edit_annotation" class="dialog-buttons" target="_self" onClick="updateAnnotation(' + ID + ');" >save</a>';
}
(annotationMode) ? type = "annotation" : type = "comment";
var cancelButton = '<a href="#" id="cancel_annotation" style="padding:0px" class="dialog-buttons" target="_self" onClick="closeAnnotationDialog(' + CONFIRMED + ');">discard</a>';
if (isVideoAnnotation()) {
if (webcamRecordingSaved()) {
msg = "To keep your recording please " + editButton + " this annotation. Or you may " + cancelButton + " this annotation.";
} else {
msg = "Please record and save your webcam video. Or " + cancelButton + " this annotation.";
}
} else {
msg = "You have modified the " + type + ". Please " + editButton + " or " + cancelButton + " changes.";
}
$("#message-dialog").html(msg);
$("#message-dialog").dialog();
$("#message-dialog").dialog({ resizable: false });
}
function alertFeedbackChanged() {
msg = "points ...";
$("#message-dialog").html(msg);
$("#message-dialog").dialog();
$("#message-dialog").dialog({ resizable: false });
}
function newAnnotation() {
// new annotations do not have an array index (whereas pre-existing annotations do)
return (null == openAnnotationIndex);
}
function annotationDialogClosed() {
return (!annotationDialogOpen);
}
function webcamRecordingSaved() {
var currentStatus = $('#webcam iframe').contents().find('#currentStatus').text();
// recording started and/or stoped but not saved
if (-1 != currentStatus.indexOf("recording")) {
return true;
}
return ("video saved." == currentStatus);
}
function annotationChanged() {
// no annotation is open
if (annotationDialogClosed()) return false;
if (newAnnotation()) {
if (isVideoAnnotation()) {
if (webcamRecordingSaved()) {
debug("webcam recording saved");
return true;
} else {
debug("webcam recording NOT saved");
//TODO: WEBCAM: prompt user that they have not made a recording
return true;
}
}
if ("" != $.trim($("#annotation-tags").val()) || "" != $.trim($("#annotation-description").val())) {
return true;
}
} else {
(annotationMode) ? list = annotations : list = comments;
if (undefined != openAnnotationIndex) {
debug("index: " + openAnnotationIndex);
if ($("#annotation-tags").val() != list[openAnnotationIndex].tags
|| $("#annotation-description").val() != list[openAnnotationIndex].description
|| annotationTimeModified) {
return true;
}
}
}
return false;
}
function closeAnnotationDialog(msg) {
debug("in closeAnnotationDialog()");
fadeOutComments(false);
// if user has not already interacted with message dialog
if (CONFIRMED != msg) {
debug("closeAnnotationDialog() - not confirmed " + msg);
// you don't have confirmation to close dialog
if (annotationChanged()) {
alertAnnotationChanged();
return;
}
} else {
debug("closeAnnotationDialog() - confirmed " + msg);
}
$('#recording-annotation').css('display', 'none');
$('#annotation-form').css('display', 'none');
annotationDialogOpen = false;
closeMessageDialog();
(annotationMode) ? list = annotations : list = comments;
if (!newAnnotation()) {
// set back annotation start and end time
list[openAnnotationIndex].startTime = dialogAnnotationStartTime;
list[openAnnotationIndex].endTime = dialogAnnotationEndTime;
// this will only be triggered if annotation is not being saved therefore
// annotation needs to be set back to it's original position
if (annotationTimeModified) setAnnotationPosition(dialogAnnotationStartTime);
}
// at this point user has chosen to save or cancel update
annotationTimeModified = false;
videoAnnotationEntryID = null;
openAnnotationIndex = null;
}
function closeAnnotationDialog1(msg) {
debug("in closeAnnotationDialog1()");
fadeOutComments(false);
// if user has not already interacted with message dialog
if (CONFIRMED != msg) {
debug("closeAnnotationDialog1() - not confirmed " + msg);
// you don't have confirmation to close dialog
if (annotationChanged()) {
alertAnnotationChanged();
return;
}
} else {
debug("closeAnnotationDialog1() - confirmed " + msg);
}
$('#recording-annotation').css('display', 'none');
$('#annotation-form1').css('display', 'none');
annotationDialogOpen = false;
closeMessageDialog();
(annotationMode) ? list = annotations : list = comments;
if (!newAnnotation()) {
// set back annotation start and end time
list[openAnnotationIndex].startTime = dialogAnnotationStartTime;
list[openAnnotationIndex].endTime = dialogAnnotationEndTime;
// this will only be triggered if annotation is not being saved therefore
// annotation needs to be set back to it's original position
if (annotationTimeModified) setAnnotationPosition(dialogAnnotationStartTime);
}
// at this point user has chosen to save or cancel update
annotationTimeModified = false;
videoAnnotationEntryID = null;
openAnnotationIndex = null;
}
function closeMessageDialog() {
if ($("#message-dialog").dialog("isOpen")) $("#message-dialog").dialog("close");
// rewrite cancel button
if (isVideoAnnotation()) {
$("#cancel_annotation").attr('onClick', 'closeAnnotationDialog()');
} else {
$("#cancel_annotation").attr('onClick', 'closeAnnotationDialog(' + CONFIRMED + ')');
}
}
function generateTrendline() {
var trendline = [];
annotationsCopy = getAnnotationsCopy();
// initialize array
for (i = 0; i < sliderWidth; i++) trendline[i] = 0;
var largest = 0;
for (i = 0; i < annotationsCopy.length; i++) {
startingPosition = Math.floor((annotationsCopy[i].startTime / mediaDuration) * sliderWidth);
// should this be same width as flag?
endPosition = startingPosition + 3;
for (j = startingPosition; j < endPosition; j++) {
trendline[j] = trendline[j] + 1;
if (trendline[j] > largest) {
largest = trendline[j];
}
}
}
//get largest value and scale trendline accordingly
var trendlineCSS = new String();
for (i = 0; i < sliderWidth; i++) {
var scaleFactor = Math.floor(255 / largest);
// calculate red intensity of RGB
var red = (trendline[i] * scaleFactor).toString(16);
if (1 == red.length) red = "0" + red;
var color = "#" + red + "0000";
// TODO: group contiguous numbers into one div
// quick and dirty method until then
trendlineCSS = trendlineCSS + "<div style=\"margin:0;padding:0;float:left;width:1px;height:25px;background-color:" + color + ";\"></div>";
}
return trendlineCSS;
}
/*
* this function is used to encapsulate the annotation object
*/
function Annotation(ID, startTime, endTime, tags, description, description_with_html, myAnnotation, userID, userName, isPrivate, videoAnnotationID, viewMode, creationDate) {
this.id = ID;
this.startTime = Math.floor(startTime);
this.endTime = Math.floor(endTime);
this.tags = tags;
this.description = description;
this.description_with_html = description_with_html;
this.myAnnotation = myAnnotation;
this.userID = userID;
this.userName = userName;
this.isPrivate = isPrivate;
this.videoAnnotationID = videoAnnotationID;
this.viewMode = viewMode;
this.creationDate = creationDate;
}
function getAnnotationList(viewMode) {
//debug('in getAnnotationlist()');
var list = "";
var tmpList = [];
$.ajax({
type: "GET",
url: "ajax/get_annotations.php",
data: { video_id: videoID, annotation_mode: annotationMode, view_mode: viewMode },
dataType: "json",
beforeSend: function (jqXHR, settings) {
},
success: function (data) {
$.each(data, function (i, item) {
if (null == item.start_time) {
// General comments have a null start_time (as they are not time specific)
comments.push(new Annotation(item.annotation_id, item.start_time, item.end_time, item.tags, item.description, item.description_with_html, item.my_annotation, item.user_id, item.user_name, item.is_private, item.video_annotation_id, viewMode, item.creation_date));
} else {
// all other annotations have a specific start time
annotations.push(new Annotation(item.annotation_id, item.start_time, item.end_time, item.tags, item.description, item.description_with_html, item.my_annotation, item.user_id, item.user_name, item.is_private, item.video_annotation_id, viewMode));
// clone annotations
//debug(item.annotation_id + " " + item.start_time + " " + item.end_time);
tmpList.push(new Annotation(item.annotation_id, item.start_time, item.end_time, item.tags, item.description, item.description_with_html, item.my_annotation, item.user_id, item.user_name, item.is_private, item.video_annotation_id, viewMode));
}
});
list = compactList(tmpList, viewMode);
},
error: function (request, status, error) {
debug("request.status: " + request.status + " error " + error + "<error>" + request.responseText + "</error>");
},
async: false
});
if (null != list) {
list = list.toString();
} else {
list = "";
}
debug("list " + list);
return list;
}
function getFeedback() {
}
var LIST_ITEM_BORDER_LEFT_BIG = 11;
var LIST_ITEM_BORDER_LEFT_MEDIUM = 7;
var LIST_ITEM_BORDER_LEFT_SMALL = 5;
function formatListItem(ID, startTime, myAnnotation, viewMode, hasData) {
var startingPosition = getStartPosition(startTime);
var width = 10; // used to be 7
var height = 1; // used to be default, let's make these arrows bigger to test how they look, then change to another color.
var style = "margin:0;padding:0;z-index:1;position:absolute;width:"
+ width +
"px;height:"
+ height +
"px;left:"
+ startingPosition +
"px;border-bottom:6px solid transparent;border-top:6px solid transparent;";
style += "border-left:" + LIST_ITEM_BORDER_LEFT_MEDIUM + "px solid " + getAnnotationColor(viewMode) + ";";
return "<div id=\"" + ID + "\" class=\"annotation-list-item\" style=\"" + style + "\"></div>";
}
function getAnnotationColor(viewMode) {
var color;
if (MINE == viewMode) {
color = "#58a0dc"; // BLUE
} else if (INSTRUCTORS_AND_TAS == viewMode) {
color = "#000000"; // BLACK // "#58b947"; // color blindness: green conflicts with orange/red for protanopia and deuteranopia and conflicts with blue for tritanopia.
} else {
color = "#ff6b00"; // ORANGE
}
return color;
}
function getStartPosition(startTime) {
// alert("The value of mediaDuration is: " + mediaDuration);
return Math.floor((startTime / mediaDuration) * sliderWidth);
}
function newWindowPrint(someText) {
var newWin = window.open('', '', 'width=640,height=480');
newWin.document.writeln(someText);
}
function compactList(listCopy, viewMode) {
// if no annotations there's nothing to do
if (0 == listCopy.length) return null;
// for display purposes give flags an end time that will work out to 7px (the width of the flag icon)
var flagWidth = 10; // used to be 7
var duration = (flagWidth / sliderWidth) * mediaDuration;
// debug("duration: " + duration + "\nflagWidth: " + flagWidth + "\nsliderWidth: " + sliderWidth + "\ngetDuration(): " + duration);
for (i = 0; i < listCopy.length; i++) {
listCopy[i].endTime = listCopy[i].startTime + duration;
}
var itemsToDelete = [];
hasData = annotationHasData(listCopy[0].tags, listCopy[0].description);
var list = "<li>" + formatListItem(listCopy[0].id, listCopy[0].startTime, listCopy[0].myAnnotation, viewMode, hasData) + "";
var currentEnd = Math.floor(listCopy[0].endTime);
listCopy.splice(0, 1);
while (listCopy.length > 0) {
for (i = 0; i < listCopy.length; i++) {
if (currentEnd <= Math.floor(listCopy[i].startTime)) {
// these annotations do not overlap so they can go on the same line
hasData = annotationHasData(listCopy[i].tags, listCopy[i].description);
list = list + formatListItem(listCopy[i].id, listCopy[i].startTime, listCopy[i].myAnnotation, viewMode, hasData) + "";
currentEnd = Math.floor(listCopy[i].endTime);
// we're done with [i] so splice it out
itemsToDelete.push(i);
}
}
while (itemsToDelete.length > 0) {
listCopy.splice(itemsToDelete.pop(), 1);
}
list = list + "</li>";
if (listCopy.length > 0) {
currentEnd = 0;
list = list + "<li>";
}
}
return "<ul id=" + viewMode + ">" + list + "</ul>";
}
function getAnnotationsCopy() {
annotationsCopy = [];
if (viewAllAnnotations) {
// make a copy of the original array
annotationsCopy = annotations.slice();
} else {
for (i = 0; i < annotations.length; i++) {
// only keep annotations authored by user
if ("true" == annotations[i].myAnnotation) {
annotationsCopy.push(annotations[i]);
}
}
}
return annotationsCopy;
}
function annotationHasData(tags, description) {
if ("" == $.trim(tags) && "" == $.trim(description)) {
return false;
} else {
return true;
}
}
function annotationCommentUpdateOnClick() {
// close dialog before opening another
closeAnnotationDialog();
("comments" == $(this).parent().parent().attr('id')) ? annotationMode = false : annotationMode = true;
// debug("<>annotationMode: " + annotationMode);
// open if user does not have an "Add Annotation" dialog open
// (ie. an annotation is not currently being created)
if (annotationChanged()) {
// assert: user has an annotation dialog open
alertAnnotationChanged();
} else {
ID = $(this).attr('id');
('annotation-list-item' == $(this).attr('class')) ? showAnnotation(ID, true) : showAnnotation(ID, false);
updateAnnotationViewCount(ID);
showAnnotationForm();
debug("'#annotation-form').css('display', 'block')");
}
}
function formatComments() {
//create an array with month names
var months = ["Jan.", "Feb.", "Mar.", "Apr.", "May", "June", "July", "Aug.", "Sept.", "Oct.", "Nov.", "Dec."];
if (comments == null || comments.length <= 0) {
// Display a single, uneditable entry telling people to post something.
list = "<li style='cursor:auto'>" +
'<br/><span style="white-space:pre-wrap; font-size:80%;">' +
"There is no comment for this video yet. You can add yours and review them later!" + '</span>' + "</li>";
} else {
// put most recent comments first
comments.reverse();
var list = "";
$.each(comments, function (index, value) {
if (value.description.length > previewLen) {
// we must find the last position of </a> from previewLen so that we don't
// accidentally cut the middle of a link
indexOfAClosingTag = value.description_with_html.indexOf("</a>", previewLen);
preview_with_link_end = (indexOfAClosingTag >= previewLen) ?
(indexOfAClosingTag + 4) :
previewLen;
description = value.description_with_html.substring(0, preview_with_link_end);
description = description + "...";
} else {
description = value.description_with_html;
}
// http://stackoverflow.com/questions/3075577/convert-mysql-datetime-stamp-into-javascripts-date-format
// Split timestamp into [ Y, M, D, h, m, s ]
var t = value.creationDate.split(/[- :]/);
// Apply each element to the Date function
var dateObj = new Date(t[0], t[1] - 1, t[2], t[3], t[4], t[5]);
commentDate = months[(dateObj.getMonth())] + " " + dateObj.getDate();
list += "<li id=" + value.id + ">" +
'<span class="label" style="font-size:75%; white-space:pre-wrap;">' +
"<span class='searchable_word'>" + value.userName + "</span>" +
" - " + commentDate + ":</span><br/>" +
' <span style="white-space:pre-wrap; font-size:80%;word-wrap:break-word">' +
makeSearchableBySingleWord(description) + ' </span>' +
"</li>";
});
}
debug("formatComments: " + list);
return list;
}
function getAnnotations() {
// clear annotations and comments first before re-fetching
annotations.splice(0, annotations.length);
comments.splice(0, comments.length);
var list = getAnnotationList(MINE);
//console.log(list);
// add others users if in view all mode
if (viewAllAnnotations) {
list += getAnnotationList(INSTRUCTORS_AND_TAS);
list += getAnnotationList(STUDENTS);
}
if (list != null && list.length > 0) {
$('#annotation-list').html(list);
$('.annotation-list-item').click(annotationCommentUpdateOnClick);
} else {
var noAnnotationText = "<br/>There is no annotation for this video yet.<br/>Add annotations as you find points of interest so you can review them later!</br> ";
$('#annotation-list').html('</br> <span class="label" style="font-size:75%; white-space:pre-wrap;text-align:center;width:550px;background-color:#ffffff;">' + noAnnotationText + '</span>');
}
var trendline = generateTrendline();
$('#trends').html(trendline);
$('#comments ul').html(formatComments());
if (comments != null && comments.length > 0) {
$('#comments ul > li').click(annotationCommentUpdateOnClick);
}
}
function showAnnotationForm() {
$('#annotation-form').css('display', 'block');
$('#annotation-form').css('z-index', '99');
$('#comments').css('z-index', '1');
fadeOutComments(true);
}
function showFeedbackForm() {
$('#annotation-form1').css('display', 'block');
$('#annotation-form1').css('z-index', '99');
$('#comments').css('z-index', '1');
}
function saveAnnotation() {
if (!psycMode) {
if (isVideoAnnotation() && newAnnotation()) {
// do not save annotation until webcam recording has been saved
if (!webcamRecordingSaved()) {
alertAnnotationChanged();
debug("! webcamRecordingSaved()");
return;