Initial dev repository

[kcls-web.git] / js / ui / default / acq / common / li_table_pager.js

diff --git a/js/ui/default/acq/common/li_table_pager.js b/js/ui/default/acq/common/li_table_pager.js
new file mode 100644 (file)
index 0000000..53d942a
--- /dev/null
+++ b/js/ui/default/acq/common/li_table_pager.js
@@ -0,0 +1,61 @@
+function LiTablePager() {
+    var self = this;
+
+    this.init = function(dataLoader, liTable, offset, limit) {
+        this.dataLoader = dataLoader;
+        this.liTable = liTable;
+        this.displayLimit = limit || 15;
+        this.displayOffset = offset || 0;
+
+        dojo.byId("acq-litpager-controls-prev").onclick =
+            function() { self.go(-1); }
+        dojo.byId("acq-litpager-controls-next").onclick =
+            function() { self.go(1); }
+    };
+
+    this.go = function(n /* generally (-1, 0, 1) */) {
+        if (n) this.displayOffset += n * this.displayLimit;
+
+        this.show();
+        this.dataLoader(this); /* not a normal method, but a callback */
+        this.enableControls(true);
+        this.relabelControls();
+    };
+
+    this.show = function() {
+        this.liTable.reset(/* keep_selectors */ true);
+        this.liTable.show("list");
+    };
+
+    this.enableControls = function(yes) {
+        dojo.byId("acq-litpager-controls-prev").disabled =
+            (!yes) || this.displayOffset < 1;
+        dojo.byId("acq-litpager-controls-next").disabled =
+            (!yes) || (
+                (typeof(this.total) != "undefined") &&
+                    this.displayOffset + this.displayLimit >= this.total
+            );
+        dojo.attr("acq-litpager-controls", "disabled", String(!yes));
+    }
+
+    this.relabelControls = function() {
+        if (typeof(this.total) != "undefined") {
+            dojo.byId("acq-litpager-controls-total").innerHTML = this.total;
+            openils.Util.show("acq-litpager-controls-total-holder", "inline");
+        } else {
+            openils.Util.hide("acq-litpager-controls-total-holder");
+        }
+
+        if (this.batch_length) {
+            dojo.byId("acq-litpager-controls-batch-start").innerHTML =
+                this.displayOffset + 1;
+            dojo.byId("acq-litpager-controls-batch-end").innerHTML =
+                this.displayOffset + this.batch_length;
+            openils.Util.show("acq-litpager-controls-batch-range", "inline");
+        } else {
+            openils.Util.hide("acq-litpager-controls-batch-range");
+        }
+    };
+
+    this.init.apply(this, arguments);
+}