no more polling for fleshible rows

git-svn-id: svn://svn.open-ils.org/ILS/trunk@4617 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/xul/staff_client/chrome/content/util/list.js b/Open-ILS/xul/staff_client/chrome/content/util/list.js
index 206f2d5..c954548 100644 (file)
--- a/Open-ILS/xul/staff_client/chrome/content/util/list.js
+++ b/Open-ILS/xul/staff_client/chrome/content/util/list.js
@@ -89,12 +89,12 @@ util.list.prototype = {
                */
                this.node.addEventListener(
                        'keypress',
-                       function(ev) { obj.detect_visible(); },
+                       function(ev) { obj.auto_retrieve(); },
                        false
                );
                this.node.addEventListener(
                        'click',
-                       function(ev) { obj.detect_visible(); },
+                       function(ev) { obj.auto_retrieve(); },
                        false
                );
                window.addEventListener(
@@ -103,7 +103,19 @@ util.list.prototype = {
                        false
                );
                /* FIXME -- find events on scrollbar to trigger this */
-               obj.detect_visible_polling();   
+               //obj.detect_visible_polling(); 
+               /*
+               var scrollbar = document.getAnonymousNodes( document.getAnonymousNodes(this.node)[1] )[1];
+               var slider = document.getAnonymousNodes( scrollbar )[2];
+               alert('scrollbar = ' + scrollbar.nodeName + ' grippy = ' + slider.nodeName);
+               scrollbar.addEventListener('click',function(){alert('sb click');},false);
+               scrollbar.addEventListener('command',function(){alert('sb command');},false);
+               scrollbar.addEventListener('scroll',function(){alert('sb scroll');},false);
+               slider.addEventListener('click',function(){alert('slider click');},false);
+               slider.addEventListener('command',function(){alert('slider command');},false);
+               slider.addEventListener('scroll',function(){alert('slider scroll');},false);
+               */
+               this.node.addEventListener('scroll',function(){ obj.auto_retrieve(); },false);
        },
 
        '_init_listbox' : function (params) {
@@ -316,34 +328,43 @@ util.list.prototype = {
                        //alert('detect_visible_polling');
                        var obj = this;
                        obj.detect_visible();
-                       setTimeout(function() { try { obj.detect_visible_polling(); } catch(E) { alert(E); } },1000);
+                       setTimeout(function() { try { obj.detect_visible_polling(); } catch(E) { alert(E); } },2000);
                } catch(E) {
                        alert(E);
                }
        },
 
        'auto_retrieve' : function () {
-               try {
-                               //alert('auto_retrieve\n');
-                               var obj = this; var count = 0;
-                               var startpos = obj.node.treeBoxObject.getFirstVisibleRow();
-                               var endpos = obj.node.treeBoxObject.getLastVisibleRow();
-                               if (startpos > endpos) endpos = obj.node.treeBoxObject.getPageLength();
-                               //dump('startpos = ' + startpos + ' endpos = ' + endpos + '\n');
-                               for (var i = startpos; i < endpos + 2; i++) {
+               var obj = this;
+               if (!obj.auto_retrieve_in_progress) {
+                       obj.auto_retrieve_in_progress = true;
+                       setTimeout(
+                               function() {
                                        try {
-                                               //dump('trying index ' + i + '\n');
-                                               var item = obj.node.contentView.getItemAtIndex(i).firstChild;
-                                               if (item && item.getAttribute('retrieved') != 'true' ) {
-                                                       //dump('\tgot an unfleshed item = ' + item + ' = ' + item.nodeName + '\n');
-                                                       util.widgets.dispatch('flesh',item); count++;
-                                               }
-                                       } catch(E) {
-                                               //dump(i + ' : ' + E + '\n');
-                                       }
-                               }
-                               return count;
-               } catch(E) { alert(E); }
+                                                       //alert('auto_retrieve\n');
+                                                       var count = 0;
+                                                       var startpos = obj.node.treeBoxObject.getFirstVisibleRow();
+                                                       var endpos = obj.node.treeBoxObject.getLastVisibleRow();
+                                                       if (startpos > endpos) endpos = obj.node.treeBoxObject.getPageLength();
+                                                       //dump('startpos = ' + startpos + ' endpos = ' + endpos + '\n');
+                                                       for (var i = startpos; i < endpos + 2; i++) {
+                                                               try {
+                                                                       //dump('trying index ' + i + '\n');
+                                                                       var item = obj.node.contentView.getItemAtIndex(i).firstChild;
+                                                                       if (item && item.getAttribute('retrieved') != 'true' ) {
+                                                                               //dump('\tgot an unfleshed item = ' + item + ' = ' + item.nodeName + '\n');
+                                                                               util.widgets.dispatch('flesh',item); count++;
+                                                                       }
+                                                               } catch(E) {
+                                                                       //dump(i + ' : ' + E + '\n');
+                                                               }
+                                                       }
+                                                       obj.auto_retrieve_in_progress = false;
+                                                       return count;
+                                       } catch(E) { alert(E); }
+                               }, 1
+                       );
+               }
        },
 
        '_append_to_listbox' : function (params) {