Current File : /home/vacivi36/ava/grade/grading/form/rubric/js/rubriceditor.js
M.gradingform_rubriceditor = {'templates' : {}, 'eventhandler' : null, 'name' : null, 'Y' : null};
/**
* This function is called for each rubriceditor on page.
*/
M.gradingform_rubriceditor.init = function(Y, options) {
M.gradingform_rubriceditor.name = options.name
M.gradingform_rubriceditor.Y = Y
M.gradingform_rubriceditor.templates[options.name] = {
'criterion' : options.criteriontemplate,
'level' : options.leveltemplate
}
M.gradingform_rubriceditor.disablealleditors()
Y.on('click', M.gradingform_rubriceditor.clickanywhere, 'body', null)
YUI().use('event-touch', function (Y) {
Y.one('body').on('touchstart', M.gradingform_rubriceditor.clickanywhere);
Y.one('body').on('touchend', M.gradingform_rubriceditor.clickanywhere);
})
M.gradingform_rubriceditor.addhandlers()
};
// Adds handlers for clicking submit button. This function must be called each time JS adds new elements to html
M.gradingform_rubriceditor.addhandlers = function() {
var Y = M.gradingform_rubriceditor.Y
var name = M.gradingform_rubriceditor.name
if (M.gradingform_rubriceditor.eventhandler) M.gradingform_rubriceditor.eventhandler.detach()
M.gradingform_rubriceditor.eventhandler = Y.on('click', M.gradingform_rubriceditor.buttonclick, '#rubric-'+name+' input[type=submit]', null);
}
// switches all input text elements to non-edit mode
M.gradingform_rubriceditor.disablealleditors = function() {
var Y = M.gradingform_rubriceditor.Y
var name = M.gradingform_rubriceditor.name
Y.all('#rubric-'+name+' .level').each( function(node) {M.gradingform_rubriceditor.editmode(node, false)} );
Y.all('#rubric-'+name+' .description').each( function(node) {M.gradingform_rubriceditor.editmode(node, false)} );
}
// function invoked on each click on the page. If level and/or criterion description is clicked
// it switches this element to edit mode. If rubric button is clicked it does nothing so the 'buttonclick'
// function is invoked
M.gradingform_rubriceditor.clickanywhere = function(e) {
if (e.type == 'touchstart') return
var el = e.target
// if clicked on button - disablecurrenteditor, continue
if (el.get('tagName') == 'INPUT' && el.get('type') == 'submit') {
return
}
// else if clicked on level and this level is not enabled - enable it
// or if clicked on description and this description is not enabled - enable it
var focustb = false
while (el && !(el.hasClass('level') || el.hasClass('description'))) {
if (el.hasClass('score')) focustb = true
el = el.get('parentNode')
}
if (el) {
if (el.one('textarea').hasClass('hiddenelement')) {
M.gradingform_rubriceditor.disablealleditors()
M.gradingform_rubriceditor.editmode(el, true, focustb)
}
return
}
// else disablecurrenteditor
M.gradingform_rubriceditor.disablealleditors()
}
// switch the criterion description or level to edit mode or switch back
M.gradingform_rubriceditor.editmode = function(el, editmode, focustb) {
var ta = el.one('textarea')
if (!editmode && ta.hasClass('hiddenelement')) return;
if (editmode && !ta.hasClass('hiddenelement')) return;
var pseudotablink = '<span class="pseudotablink" tabindex="0"></span>',
taplain = ta.get('parentNode').one('.plainvalue'),
tbplain = null,
tb = el.one('.score input[type=text]')
// add 'plainvalue' next to textarea for description/definition and next to input text field for score (if applicable)
if (!taplain) {
ta.get('parentNode').append('<div class="plainvalue">'+pseudotablink+'<span class="textvalue"> </span></div>')
taplain = ta.get('parentNode').one('.plainvalue')
taplain.one('.pseudotablink').on('focus', M.gradingform_rubriceditor.clickanywhere)
if (tb) {
tb.get('parentNode').append('<span class="plainvalue">'+pseudotablink+'<span class="textvalue"> </span></span>')
tbplain = tb.get('parentNode').one('.plainvalue')
tbplain.one('.pseudotablink').on('focus', M.gradingform_rubriceditor.clickanywhere)
}
}
if (tb && !tbplain) tbplain = tb.get('parentNode').one('.plainvalue')
if (!editmode) {
// if we need to hide the input fields, copy their contents to plainvalue(s). If description/definition
// is empty, display the default text ('Click to edit ...') and add/remove 'empty' CSS class to element
var value = ta.get('value')
if (value.length) taplain.removeClass('empty')
else {
value = (el.hasClass('level')) ? M.util.get_string('levelempty', 'gradingform_rubric') : M.util.get_string('criterionempty', 'gradingform_rubric')
taplain.addClass('empty')
}
taplain.one('.textvalue').set('innerHTML', Y.Escape.html(value));
if (tb) tbplain.one('.textvalue').set('innerHTML', Y.Escape.html(tb.get('value')));
// hide/display textarea, textbox and plaintexts
taplain.removeClass('hiddenelement')
ta.addClass('hiddenelement')
if (tb) {
tbplain.removeClass('hiddenelement')
tb.addClass('hiddenelement')
}
} else {
// if we need to show the input fields, set the width/height for textarea so it fills the cell
try {
var width = parseFloat(ta.get('parentNode').getComputedStyle('width')),
height
if (el.hasClass('level')) height = parseFloat(el.getComputedStyle('height')) - parseFloat(el.one('.score').getComputedStyle('height'))
else height = parseFloat(ta.get('parentNode').getComputedStyle('height'))
ta.setStyle('width', Math.max(width-16,50)+'px')
ta.setStyle('height', Math.max(height,20)+'px')
}
catch (err) {
// this browser do not support 'computedStyle', leave the default size of the textbox
}
// hide/display textarea, textbox and plaintexts
taplain.addClass('hiddenelement')
ta.removeClass('hiddenelement')
if (tb) {
tbplain.addClass('hiddenelement')
tb.removeClass('hiddenelement')
}
}
// focus the proper input field in edit mode
if (editmode) { if (tb && focustb) tb.focus(); else ta.focus() }
}
// handler for clicking on submit buttons within rubriceditor element. Adds/deletes/rearranges criteria and/or levels on client side
M.gradingform_rubriceditor.buttonclick = function(e, confirmed) {
var Y = M.gradingform_rubriceditor.Y
var name = M.gradingform_rubriceditor.name
if (e.target.get('type') != 'submit') return;
M.gradingform_rubriceditor.disablealleditors()
var chunks = e.target.get('id').split('-'),
action = chunks[chunks.length-1]
if (chunks[0] != name || chunks[1] != 'criteria') return;
var elements_str
if (chunks.length>4 || action == 'addlevel') {
elements_str = '#rubric-'+name+' #'+name+'-criteria-'+chunks[2]+'-levels .level'
} else {
elements_str = '#rubric-'+name+' .criterion'
}
// prepare the id of the next inserted level or criterion
var newlevid = 0;
var newid = 0;
if (action == 'addcriterion' || action == 'addlevel' || action == 'duplicate' ) {
newid = M.gradingform_rubriceditor.calculatenewid('#rubric-'+name+' .criterion');
newlevid = M.gradingform_rubriceditor.calculatenewid('#rubric-'+name+' .level');
}
var dialog_options = {
'scope' : this,
'callbackargs' : [e, true],
'callback' : M.gradingform_rubriceditor.buttonclick
};
if (chunks.length == 3 && action == 'addcriterion') {
// ADD NEW CRITERION
var levelsscores = [0], levidx = 1
var parentel = Y.one('#'+name+'-criteria')
if (parentel.one('>tbody')) parentel = parentel.one('>tbody')
if (parentel.all('.criterion').size()) {
var lastcriterion = parentel.all('.criterion').item(parentel.all('.criterion').size()-1).all('.level')
for (levidx=0;levidx<lastcriterion.size();levidx++) levelsscores[levidx] = lastcriterion.item(levidx).one('.score input[type=text]').get('value')
}
for (levidx;levidx<3;levidx++) levelsscores[levidx] = parseFloat(levelsscores[levidx-1])+1
var levelsstr = '';
for (levidx=0;levidx<levelsscores.length;levidx++) {
levelsstr += M.gradingform_rubriceditor.templates[name].level.
replace(/\{LEVEL-id\}/g, 'NEWID'+(newlevid+levidx)).
replace(/\{LEVEL-score\}/g, levelsscores[levidx]).
replace(/\{LEVEL-index\}/g, levidx + 1);
}
var newcriterion = M.gradingform_rubriceditor.templates[name]['criterion'].replace(/\{LEVELS\}/, levelsstr)
parentel.append(newcriterion.replace(/\{CRITERION-id\}/g, 'NEWID'+newid).replace(/\{.+?\}/g, ''))
M.gradingform_rubriceditor.assignclasses('#rubric-'+name+' #'+name+'-criteria-NEWID'+newid+'-levels .level')
M.gradingform_rubriceditor.addhandlers();
M.gradingform_rubriceditor.disablealleditors()
M.gradingform_rubriceditor.assignclasses(elements_str)
M.gradingform_rubriceditor.editmode(
Y.one('#rubric-' + name + ' #' + name + '-criteria-NEWID' + newid + '-description-cell'), true
);
} else if (chunks.length == 5 && action == 'addlevel') {
// ADD NEW LEVEL
var newscore = 0;
parent = Y.one('#'+name+'-criteria-'+chunks[2]+'-levels')
var levelIndex = 1;
parent.all('.level').each(function (node) {
newscore = Math.max(newscore, parseFloat(node.one('.score input[type=text]').get('value')) + 1);
levelIndex++;
});
var newlevel = M.gradingform_rubriceditor.templates[name]['level'].
replace(/\{CRITERION-id\}/g, chunks[2]).replace(/\{LEVEL-id\}/g, 'NEWID'+newlevid).
replace(/\{LEVEL-score\}/g, newscore).
replace(/\{LEVEL-index\}/g, levelIndex).
replace(/\{.+?\}/g, '');
parent.append(newlevel)
M.gradingform_rubriceditor.addhandlers();
M.gradingform_rubriceditor.disablealleditors()
M.gradingform_rubriceditor.assignclasses(elements_str)
M.gradingform_rubriceditor.editmode(parent.all('.level').item(parent.all('.level').size()-1), true)
} else if (chunks.length == 4 && action == 'moveup') {
// MOVE CRITERION UP
el = Y.one('#'+name+'-criteria-'+chunks[2])
if (el.previous()) el.get('parentNode').insertBefore(el, el.previous())
M.gradingform_rubriceditor.assignclasses(elements_str)
} else if (chunks.length == 4 && action == 'movedown') {
// MOVE CRITERION DOWN
el = Y.one('#'+name+'-criteria-'+chunks[2])
if (el.next()) el.get('parentNode').insertBefore(el.next(), el)
M.gradingform_rubriceditor.assignclasses(elements_str)
} else if (chunks.length == 4 && action == 'delete') {
// DELETE CRITERION
if (confirmed) {
Y.one('#'+name+'-criteria-'+chunks[2]).remove()
M.gradingform_rubriceditor.assignclasses(elements_str)
} else {
dialog_options['message'] = M.util.get_string('confirmdeletecriterion', 'gradingform_rubric')
M.util.show_confirm_dialog(e, dialog_options);
}
} else if (chunks.length == 4 && action == 'duplicate') {
// Duplicate criterion.
var levelsdef = [], levelsscores = [0], levidx = null;
var parentel = Y.one('#'+name+'-criteria');
if (parentel.one('>tbody')) { parentel = parentel.one('>tbody'); }
var source = Y.one('#'+name+'-criteria-'+chunks[2]);
if (source.all('.level')) {
var lastcriterion = source.all('.level');
for (levidx = 0; levidx < lastcriterion.size(); levidx++) {
levelsdef[levidx] = lastcriterion.item(levidx).one('.definition .textvalue').get('innerHTML');
}
for (levidx = 0; levidx < lastcriterion.size(); levidx++) {
levelsscores[levidx] = lastcriterion.item(levidx).one('.score input[type=text]').get('value');
}
}
for (levidx; levidx < 3; levidx++) { levelsscores[levidx] = parseFloat(levelsscores[levidx-1]) + 1; }
var levelsstr = '';
for (levidx = 0; levidx < levelsscores.length; levidx++) {
levelsstr += M.gradingform_rubriceditor.templates[name].level
.replace(/\{LEVEL-id\}/g, 'NEWID'+(newlevid+levidx))
.replace(/\{LEVEL-score\}/g, levelsscores[levidx])
.replace(/\{LEVEL-definition\}/g, levelsdef[levidx]);
}
var description = source.one('.description .textvalue');
var newcriterion = M.gradingform_rubriceditor.templates[name].criterion
.replace(/\{LEVELS\}/, levelsstr)
.replace(/\{CRITERION-description\}/, description.get('innerHTML'));
parentel.append(newcriterion.replace(/\{CRITERION-id\}/g, 'NEWID'+newid).replace(/\{.+?\}/g, ''));
M.gradingform_rubriceditor.assignclasses('#rubric-'+name+' #'+name+'-criteria-NEWID'+newid+'-levels .level');
M.gradingform_rubriceditor.addhandlers();
M.gradingform_rubriceditor.disablealleditors();
M.gradingform_rubriceditor.assignclasses(elements_str);
M.gradingform_rubriceditor.editmode(Y.one('#rubric-'+name+' #'+name+'-criteria-NEWID'+newid+'-description-cell'),true);
} else if (chunks.length == 6 && action == 'delete') {
// DELETE LEVEL
if (confirmed) {
Y.one('#'+name+'-criteria-'+chunks[2]+'-'+chunks[3]+'-'+chunks[4]).remove()
M.gradingform_rubriceditor.assignclasses(elements_str)
} else {
dialog_options['message'] = M.util.get_string('confirmdeletelevel', 'gradingform_rubric')
M.util.show_confirm_dialog(e, dialog_options);
}
} else {
// unknown action
return;
}
e.preventDefault();
}
// properly set classes (first/last/odd/even), level width and/or criterion sortorder for elements Y.all(elements_str)
M.gradingform_rubriceditor.assignclasses = function (elements_str) {
var elements = M.gradingform_rubriceditor.Y.all(elements_str)
for (var i=0;i<elements.size();i++) {
elements.item(i).removeClass('first').removeClass('last').removeClass('even').removeClass('odd').
addClass(((i%2)?'odd':'even') + ((i==0)?' first':'') + ((i==elements.size()-1)?' last':''))
elements.item(i).all('input[type=hidden]').each(
function(node) {if (node.get('name').match(/sortorder/)) node.set('value', i)}
);
if (elements.item(i).hasClass('level')) elements.item(i).set('width', Math.round(100/elements.size())+'%')
}
}
// returns unique id for the next added element, it should not be equal to any of Y.all(elements_str) ids
M.gradingform_rubriceditor.calculatenewid = function (elements_str) {
var newid = 1
M.gradingform_rubriceditor.Y.all(elements_str).each( function(node) {
var idchunks = node.get('id').split('-'), id = idchunks.pop();
if (id.match(/^NEWID(\d+)$/)) newid = Math.max(newid, parseInt(id.substring(5))+1);
} );
return newid
}
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