forked from joomla/Component-Builder
430 lines
12 KiB
JavaScript
430 lines
12 KiB
JavaScript
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/**
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* Footable Memory
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*
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* Version 1.1.0
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*
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* Requires browser support for localStorage. Fallback to cookies using
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* jQuery Cookie (https://github.com/carhartl/jquery-cookie)
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*
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* Stores table state in a cookie and reloads state when page is refreshed.
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*
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* Supports common FooTable features:
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* - Pagination
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* - Sorting
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* - Filtering
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* - Expansion
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*
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* Written to be compatible with multiple FooTables per page and with
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* JavaScript libraries like AngularJS and Ember that use hash based URLs.
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*
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* Disabled by default, to enable add the following section to the footable
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* options:
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*
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* $('#table').footable({
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* memory: {
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* enabled: true
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* }
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* });
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*
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* Based on FooTable Plugin Bookmarkable by Amy Farrell (https://github.com/akf)
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*
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* Created by Chris Laskey (https://github.com/chrislaskey)
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*/
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(function ($, w, undefined) {
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if (w.footable === undefined || w.foobox === null) {
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throw new Error('Please check and make sure footable.js is included in the page and is loaded prior to this script.');
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}
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var defaults = {
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memory: {
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enabled: false
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}
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};
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var storage;
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var storage_engines = {};
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storage_engines.local_storage = (function($){
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'use strict';
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var path_page = function(){
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return location.pathname;
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};
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var path_subpage = function(){
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return location.hash || 'root';
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};
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var storage_key = function(index){
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return path_page() + '/' + path_subpage() + '/index-' + index;
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};
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var get = function(index){
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var key = storage_key(index),
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as_string = localStorage.getItem(key);
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return as_string ? JSON.parse(as_string) : {};
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};
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var set = function(index, item){
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var key = storage_key(index),
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as_string = JSON.stringify(item);
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localStorage.setItem(key, as_string);
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};
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return {
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get: function(index){
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return get(index);
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},
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set: function(index, item){
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set(index, item);
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}
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};
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})($);
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storage_engines.cookie = (function($){
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'use strict';
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/**
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* Stores footable bookmarkable data in a cookie
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*
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* By default will store each page in its own cookie.
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* Supports multiple FooTables per page.
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* Supports JS frameworks that use hashmap URLs (AngularJS, Ember, etc).
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*
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* For example take an example application:
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*
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* http://example.com/application-data (2 FooTables on this page)
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* http://example.com/application-data/#/details (1 FooTable on this page)
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* http://example.com/other-data (1 FooTable on this page)
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*
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* Would be stored like this:
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*
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* cookie['/application-data'] = {
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* '/': {
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* 1: {
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* key1: value1,
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* key2: value2
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* },
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* 2: {
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* key1: value1,
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* key2: value2
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* }
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* },
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* '#/details': {
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* 1: {
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* key1: value1,
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* key2: value2
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* }
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* }
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* };
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*
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* cookie['/other-data'] = {
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* '/': {
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* 1: {
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* key1: value1,
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* key2: value2
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* },
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* }
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* }
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*
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*/
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if( $.cookie ){
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$.cookie.json = true;
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}
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var days_to_keep_data = 7;
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var path_page = function(){
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return location.pathname;
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};
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var path_subpage = function(){
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return location.hash || '/';
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};
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var get_data = function(){
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var page = path_page(),
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data = $.cookie(page);
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return data || {};
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};
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var get_table = function(index){
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var subpage = path_subpage(),
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data = get_data();
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if( data[subpage] && data[subpage][index] ){
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return data[subpage][index];
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} else {
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return {};
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}
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};
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var set = function(index, item){
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var page = path_page(),
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subpage = path_subpage(),
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data = get_data(),
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options;
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if( !data[subpage] ){
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data[subpage] = {};
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}
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data[subpage][index] = item;
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options = {
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path: page,
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expires: days_to_keep_data
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};
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$.cookie(page, data, options);
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};
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return {
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get: function(index){
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return get_table(index);
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},
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set: function(index, item){
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set(index, item);
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}
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};
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})($);
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var set_storage_engine = (function(){
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var test = 'footable-memory-plugin-storage-test';
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try {
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localStorage.setItem(test, test);
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localStorage.removeItem(test);
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storage = storage_engines.local_storage;
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} catch(e) {
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try {
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$.cookie(test, test);
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storage = storage_engines.cookie;
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} catch(e) {
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throw new Error('FooTable Memory requires either localStorage or cookie support via jQuery $.cookie plugin (https://github.com/carhartl/jquery-cookie)');
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}
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}
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})($);
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var state = (function($){
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'use strict';
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/**
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* Gets and sets current table state
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*/
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var vars = {};
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var get = {};
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var set = {};
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set.vars = function(ft){
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vars.ft = ft;
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vars.table = $(ft.table);
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};
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get.descending = function(){
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var descending = false;
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$.each(vars.table.find('th'), function(index){
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if( $(this).hasClass('footable-sorted-desc') ){
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descending = true;
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}
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});
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return descending;
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};
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get.expanded = function(){
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var indexes = [];
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$.each(vars.ft.table.rows, function(index, value){
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if( $(this).hasClass('footable-detail-show') ){
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indexes.push(index);
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}
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});
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return indexes;
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};
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set.expanded = function(data){
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if( data.expanded ){
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$.each(data.expanded, function(index, value){
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// var row = $(vars.ft.table.rows[value]);
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// row.find('> td:first').trigger('footable_toggle_row');
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// Trying to execute the lines above, but the expanded row
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// shows raw AngularJS template (with {{ values }}) instead
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// of the fully rendered result.
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//
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// Best guess is some things happen after
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// 'footable_initialized' event and row expanding can not
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// occur until after those fire.
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//
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// A hack to get around this is to wait an interval before
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// executing the intended commands. Wrapped in an
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// immediately executing function to ensure ft is the
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// current value.
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(function(ft){
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setTimeout(function(){
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var row = $(ft.table.rows[value]);
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row.find('> td:first').trigger('footable_toggle_row');
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}, 150);
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})(vars.ft);
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});
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}
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};
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get.filter = function(){
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return vars.table.data('filter') ? $(vars.table.data('filter')).val() : '';
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};
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set.filter = function(data){
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if( data.filter ){
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$(vars.table.data('filter'))
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.val(data.filter)
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.trigger('keyup');
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}
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};
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get.page = function(){
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return vars.ft.pageInfo && vars.ft.pageInfo.currentPage !== undefined ? vars.ft.pageInfo.currentPage : 0;
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};
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set.page = function(data){
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if( data.page ){
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vars.table.data('currentPage', data.page);
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// Delay triggering table until sort is updated, since both effect
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// pagination.
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}
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};
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get.shown = function(){
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return vars.table
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.find('tbody')
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.find('tr:not(.footable-row-detail)')
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.filter(':visible').length;
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};
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get.sorted = function(){
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if( vars.table.data('sorted') !== undefined ){
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return vars.table.data('sorted');
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} else {
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return -1;
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}
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};
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set.sorted = function(data){
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if( data.sorted >= 0 ) {
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// vars.table.data('footable-sort').doSort(data.sorted, !data.descending);
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// Trying to execute the line above, but only sort icon on the
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// <th> element gets set. The rows themselves do not get sorted.
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//
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// Best guess is some things happen after 'footable_initialized' event
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// and sorting can not occur until after those fire.
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//
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// A hack to get around this is to wait an interval before executing
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// the intended commands. Wrapped in an immediately executing
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// function to ensure ft is the current value.
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(function(ft){
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setTimeout(function(){
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$(ft.table).data('footable-sort').doSort(data.sorted, !data.descending);
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}, 150);
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})(vars.ft);
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} else {
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vars.table.trigger('footable_setup_paging');
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}
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};
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get.total = function(){
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return vars.table
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.find('tbody')
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.find('tr:not(.footable-row-detail, .footable-filtered)').length;
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};
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var get_state = function(){
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return {
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descending: get.descending(),
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expanded: get.expanded(),
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filter: get.filter(),
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page: get.page(),
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shown: get.shown(),
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sorted: get.sorted(),
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total: get.total()
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};
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};
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var set_state = function(data){
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set.filter(data);
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set.page(data);
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set.sorted(data);
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set.expanded(data);
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};
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return {
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get: function(ft){
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set.vars(ft);
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return get_state();
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},
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set: function(ft, data){
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set.vars(ft);
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return set_state(data);
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}
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};
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})($);
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var is_enabled = function(ft){
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return ft.options.memory.enabled;
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};
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var update = function(ft, event) {
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var index = ft.id,
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data = state.get(ft);
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storage.set(index, data);
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};
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var load = function(ft){
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var index = ft.id,
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data = storage.get(index);
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state.set(ft, data);
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ft.memory_plugin_loaded = true;
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};
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function Memory() {
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var p = this;
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p.name = 'Footable Memory';
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p.init = function(ft) {
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if (is_enabled(ft)) {
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$(ft.table).bind({
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'footable_initialized': function(){
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load(ft);
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},
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'footable_page_filled footable_redrawn footable_filtered footable_sorted footable_row_expanded footable_row_collapsed': function(e) {
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if (ft.memory_plugin_loaded) {
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update(ft, e);
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}
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}
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});
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}
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};
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}
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w.footable.plugins.register(Memory, defaults);
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})(jQuery, window);
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