From eba7e511eb4338a71ec954ce8ff6e69356bda558 Mon Sep 17 00:00:00 2001
From: Galen Charlton <gmc@esilibrary.com>
Date: Thu, 13 Oct 2016 18:08:30 -0400
Subject: [PATCH] teach egGridFields how to compile column tempates

This adds two optional attributes to eg-grid-field:

 compiled: if present, treat the template inside the
           element as a template to be compiled
 handlers: if present, contains an object with a bucket
           of functions (or whatever) that can be invoked
           inside the template as "col.handlers.foo"

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
---
 Open-ILS/src/templates/staff/share/t_autogrid.tt2 |  8 ++++--
 Open-ILS/web/js/ui/default/staff/services/grid.js | 35 ++++++++++++++++++++++-
 2 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/Open-ILS/src/templates/staff/share/t_autogrid.tt2 b/Open-ILS/src/templates/staff/share/t_autogrid.tt2
index cf5ac460a2..e8124dd7b0 100644
--- a/Open-ILS/src/templates/staff/share/t_autogrid.tt2
+++ b/Open-ILS/src/templates/staff/share/t_autogrid.tt2
@@ -203,7 +203,7 @@
 <div class="eg-grid" ng-class="{'eg-grid-as-conf' : showGridConf}">
 
   <!-- import our eg-grid-field defs -->
-  <div ng-transclude></div>
+  <div style="display: none;" ng-transclude></div>
 
   <div class="eg-grid-row eg-grid-header-row">
     <div class="eg-grid-cell eg-grid-cell-stock" ng-show="showIndex">
@@ -338,10 +338,14 @@
 
           <!-- if the cell comes with its own template,
                translate that content into HTML and insert it here -->
-          <span ng-if="col.template" style="padding-left:5px; padding-right:10px;"
+          <span ng-if="col.template && !col.compiled" style="padding-left:5px; padding-right:10px;"
             ng-bind-html="translateCellTemplate(col, item)">
           </span>
 
+          <span ng-if="col.template && col.compiled" style="padding-left:5px; padding-right:10px;"
+            compile="col.template">
+          </span>
+
           <!-- otherwise, simply display the item value, which may 
                pass through datatype-specific filtering. -->
           <span ng-if="!col.template" style="padding-left:5px; padding-right:10px;">
diff --git a/Open-ILS/web/js/ui/default/staff/services/grid.js b/Open-ILS/web/js/ui/default/staff/services/grid.js
index 96c4a9eda9..61e495cbba 100644
--- a/Open-ILS/web/js/ui/default/staff/services/grid.js
+++ b/Open-ILS/web/js/ui/default/staff/services/grid.js
@@ -1104,7 +1104,12 @@ angular.module('egGridMod',
             // optional: for non-IDL columns, specifying a datatype
             // lets the caller control which display filter is used.
             // datatype should match the standard IDL datatypes.
-            datatype : '@'
+            datatype : '@',
+
+            // optional hash of functions that can be imported into
+            // the directive's scope; meant for cases where the "compiled"
+            // attribute is set
+            handlers : '='
         },
         link : function(scope, element, attrs, egGridCtrl) {
 
@@ -1112,6 +1117,7 @@ angular.module('egGridMod',
             angular.forEach(
                 [
                     'visible', 
+                    'compiled', 
                     'hidden', 
                     'sortable', 
                     'nonsortable',
@@ -1378,6 +1384,8 @@ angular.module('egGridMod',
                 linkpath : colSpec.linkpath,
                 template : colSpec.template,
                 visible  : colSpec.visible,
+                compiled : colSpec.compiled,
+                handlers : colSpec.handlers,
                 hidden   : colSpec.hidden,
                 datatype : colSpec.datatype,
                 sortable : colSpec.sortable,
@@ -1901,6 +1909,31 @@ angular.module('egGridMod',
     };
 })
 
+/* https://stackoverflow.com/questions/17343696/adding-an-ng-click-event-inside-a-filter/17344875#17344875 */
+.directive('compile', ['$compile', function ($compile) {
+    return function(scope, element, attrs) {
+      // pass through column defs from grid cell's scope
+      scope.col = scope.$parent.col;
+      scope.$watch(
+        function(scope) {
+          // watch the 'compile' expression for changes
+          return scope.$eval(attrs.compile);
+        },
+        function(value) {
+          // when the 'compile' expression changes
+          // assign it into the current DOM
+          element.html(value);
+
+          // compile the new DOM and link it to the current
+          // scope.
+          // NOTE: we only compile .childNodes so that
+          // we don't get into infinite loop compiling ourselves
+          $compile(element.contents())(scope);
+        }
+    );
+  };
+}])
+
 
 
 /**
-- 
2.11.0