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/**
*
Copyright 2012 Vineet Semwal
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
").prop("id", theId);
},
/**
* removes element with 'id' of parent with id 'parentId'
*/
removeItem: function(id, parentId) {
$("#" + parentId).children().remove("#" + id);
},
/**
creates a new dom tag element as the last element of dome element with id parentContainerId
*/
append: function(tag, theId, parentContainerId , startId,endId ) {
var item = QuickView.createItem(tag, theId);
var $parent=$("#" + parentContainerId);
// if the boundary is not mentioned
if(endId.length<1){
$parent.append(item);
return;
}
//if mentioned ,add before end boundary
var $end=$parent.find("#"+endId);
$end.before(item);
},
/**
creates a new dom tag element as the first element of element with parentContainerId
*/
prepend: function(tag, theId, parentContainerId,startId,endId ) {
var item = QuickView.createItem(tag, theId);
var $parent=$("#" + parentContainerId);
// if the boundary is not mentioned
if(startId.length<1){
$parent.prepend(item);
return;
}
//if mentioned ,add after start boundary
var $start=$parent.find("#"+startId);
$start.after(item);
},
/**
position the scrollbar to bottom
*/
scrollToBottom: function(id)
{
var element = $("#" + id);
//
//scroll height
//
var height=$(element).prop("scrollHeight");
this.scrollTo(id, height);
},
/**
position the scrollbar to top
*/
scrollToTop: function(id) {
this.scrollTo(id, 0);
},
/**
position the scrollbar to provided height
*/
scrollTo: function(id, height) {
var element = $("#" + id);
$(element).scrollTop(height);
},
/**
returns true if the scrollbar of element with parameter id is moved at the bottom else it returns false
*/
isComponentScrollBarAtBottom: function(id) {
var el = $("#" + id);
// offsetheight : element height
// scrolltop : height of scroll from top
// scroll-height:height of the scroll view of an element
return (Math.round($(el).prop("offsetHeight")) + Math.round($(el).scrollTop()) >= Math.round($(el).prop("scrollHeight")));
},
/**
returns true if the scrollbar of the page is moved at the bottom else it returns false
*/
isPageScrollBarAtBottom: function() {
// 50 px added as it's nicer to not force user to move scrollbar to the absolute bottom for new items
return (($(window).height() + $(window).scrollTop())+50 >= $(document).height());
},
/**
it assures document height is greater than window height by setting min-height on body
if document height is already greater than window height then it does nothing.
*/
showPageScrollBar: function() {
var winHeight = $(window).height();
if (winHeight >= $(document).height()) {
var newDHeight = winHeight + 10; //random 10px added to assure document height is greater than window
$('body').css('min-height', newDHeight);
}
}
};
