Open-ILS/web/js/ui/default/acq/common/li_table_pager.js

   1 function LiTablePager() {
   2     var self = this;
   3
   4     this.init = function(dataLoader, liTable, offset, limit) {
   5         this.dataLoader = dataLoader;
   6         this.liTable = liTable;
   7         this.liTable.isUni = true;
   8         this.liTable.pager = this;  /* XXX memory leak waiting to happen? */
   9
  10         this.displayLimit = limit || 15;
  11         this.displayOffset = offset || 0;
  12
  13         dojo.byId("acq-litpager-controls-prev").onclick =
  14             function() { self.go(-1); }
  15         dojo.byId("acq-litpager-controls-next").onclick =
  16             function() { self.go(1); }
  17     };
  18
  19     this.go = function(n /* generally (-1, 0, 1) */) {
  20         if (n) this.displayOffset += n * this.displayLimit;
  21
  22         this.show();
  23         this.dataLoader(this); /* not a normal method, but a callback */
  24         this.enableControls(true);
  25         this.relabelControls();
  26     };
  27
  28     this.show = function() {
  29         this.liTable.reset(/* keep_selectors */ true);
  30         this.liTable.show("list");
  31     };
  32
  33     this.enableControls = function(yes) {
  34         dojo.byId("acq-litpager-controls-prev").disabled =
  35             (!yes) || this.displayOffset < 1;
  36         dojo.byId("acq-litpager-controls-next").disabled =
  37             (!yes) || (
  38                 (typeof(this.total) != "undefined") &&
  39                     this.displayOffset + this.displayLimit >= this.total
  40             );
  41         dojo.attr("acq-litpager-controls", "disabled", String(!yes));
  42     }
  43
  44     this.relabelControls = function() {
  45         if (typeof(this.total) != "undefined") {
  46             dojo.byId("acq-litpager-controls-total").innerHTML = this.total;
  47             openils.Util.show("acq-litpager-controls-total-holder", "inline");
  48         } else {
  49             openils.Util.hide("acq-litpager-controls-total-holder");
  50         }
  51
  52         if (this.batch_length) {
  53             dojo.byId("acq-litpager-controls-batch-start").innerHTML =
  54                 this.displayOffset + 1;
  55             dojo.byId("acq-litpager-controls-batch-end").innerHTML =
  56                 this.displayOffset + this.batch_length;
  57             openils.Util.show("acq-litpager-controls-batch-range", "inline");
  58         } else {
  59             openils.Util.hide("acq-litpager-controls-batch-range");
  60         }
  61     };
  62
  63     this.getAllLineitemIDs = function(callback) {
  64         this.dataLoader({
  65             "id_list": true,
  66             "atomic": true,
  67             "skip_paging": true,
  68             "onresponse": null,
  69             "oncomplete": callback
  70         });
  71     };
  72
  73     this.init.apply(this, arguments);
  74 }