116 lines
4.5 KiB
JavaScript
116 lines
4.5 KiB
JavaScript
define(["underscore", "js/views/baseview", "js/views/feedback_alert", "gettext"],
|
|
function(_, BaseView, AlertView, gettext) {
|
|
|
|
var PagingView = BaseView.extend({
|
|
// takes a Backbone Paginator as a model
|
|
|
|
sortableColumns: {},
|
|
|
|
initialize: function() {
|
|
BaseView.prototype.initialize.call(this);
|
|
var collection = this.collection;
|
|
collection.bind('add', _.bind(this.onPageRefresh, this));
|
|
collection.bind('remove', _.bind(this.onPageRefresh, this));
|
|
collection.bind('reset', _.bind(this.onPageRefresh, this));
|
|
},
|
|
|
|
onPageRefresh: function() {
|
|
var sortColumn = this.sortColumn;
|
|
this.renderPageItems();
|
|
this.$('.column-sort-link').removeClass('current-sort');
|
|
this.$('#' + sortColumn).addClass('current-sort');
|
|
},
|
|
|
|
setPage: function(page) {
|
|
var self = this,
|
|
collection = self.collection,
|
|
oldPage = collection.currentPage;
|
|
collection.goTo(page, {
|
|
reset: true,
|
|
success: function() {
|
|
window.scrollTo(0, 0);
|
|
},
|
|
error: function(collection) {
|
|
collection.currentPage = oldPage;
|
|
self.onError();
|
|
}
|
|
});
|
|
},
|
|
|
|
onError: function() {
|
|
// Do nothing by default
|
|
},
|
|
|
|
nextPage: function() {
|
|
var collection = this.collection,
|
|
currentPage = collection.currentPage,
|
|
lastPage = collection.totalPages - 1;
|
|
if (currentPage < lastPage) {
|
|
this.setPage(currentPage + 1);
|
|
}
|
|
},
|
|
|
|
previousPage: function() {
|
|
var collection = this.collection,
|
|
currentPage = collection.currentPage;
|
|
if (currentPage > 0) {
|
|
this.setPage(currentPage - 1);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Registers information about a column that can be sorted.
|
|
* @param columnName The element name of the column.
|
|
* @param displayName The display name for the column in the current locale.
|
|
* @param fieldName The database field name that is represented by this column.
|
|
* @param defaultSortDirection The default sort direction for the column
|
|
*/
|
|
registerSortableColumn: function(columnName, displayName, fieldName, defaultSortDirection) {
|
|
this.sortableColumns[columnName] = {
|
|
displayName: displayName,
|
|
fieldName: fieldName,
|
|
defaultSortDirection: defaultSortDirection
|
|
};
|
|
},
|
|
|
|
sortableColumnInfo: function(sortColumn) {
|
|
var sortInfo = this.sortableColumns[sortColumn];
|
|
if (!sortInfo) {
|
|
throw "Unregistered sort column '" + sortColumn + '"';
|
|
}
|
|
return sortInfo;
|
|
},
|
|
|
|
sortDisplayName: function() {
|
|
var sortColumn = this.sortColumn,
|
|
sortInfo = this.sortableColumnInfo(sortColumn);
|
|
return sortInfo.displayName;
|
|
},
|
|
|
|
setInitialSortColumn: function(sortColumn) {
|
|
var collection = this.collection,
|
|
sortInfo = this.sortableColumns[sortColumn];
|
|
collection.sortField = sortInfo.fieldName;
|
|
collection.sortDirection = sortInfo.defaultSortDirection;
|
|
this.sortColumn = sortColumn;
|
|
},
|
|
|
|
toggleSortOrder: function(sortColumn) {
|
|
var collection = this.collection,
|
|
sortInfo = this.sortableColumnInfo(sortColumn),
|
|
sortField = sortInfo.fieldName,
|
|
defaultSortDirection = sortInfo.defaultSortDirection;
|
|
if (collection.sortField === sortField) {
|
|
collection.sortDirection = collection.sortDirection === 'asc' ? 'desc' : 'asc';
|
|
} else {
|
|
collection.sortField = sortField;
|
|
collection.sortDirection = defaultSortDirection;
|
|
}
|
|
this.sortColumn = sortColumn;
|
|
this.setPage(0);
|
|
}
|
|
});
|
|
|
|
return PagingView;
|
|
}); // end define();
|