Add proper paste support

Add paste="expression" to allow custom paste handling.

Allow pasting in tagging mode when the tagging function is not defined.

In IE use window.clipboardData so jQuery is not required.

Fixes angular-ui#910, angular-ui#704, angular-ui#789, angular-ui#848, angular-ui#429

Author: erikdubbelboer

src/uiSelectController.js

@@ -16,6 +16,7 @@ uis.controller('uiSelectCtrl',
   ctrl.searchEnabled = uiSelectConfig.searchEnabled;
   ctrl.sortable = uiSelectConfig.sortable;
   ctrl.refreshDelay = uiSelectConfig.refreshDelay;
+  ctrl.paste = uiSelectConfig.paste;
 
   ctrl.removeSelected = false; //If selected item(s) should be removed from dropdown list
   ctrl.closeOnSelect = true; //Initialized inside uiSelect directive link function
@@ -491,18 +492,32 @@ uis.controller('uiSelectCtrl',
 
   });
 
-  // If tagging try to split by tokens and add items
   ctrl.searchInput.on('paste', function (e) {
-    var data = e.originalEvent.clipboardData.getData('text/plain');
-    if (data && data.length > 0 && ctrl.taggingTokens.isActivated && ctrl.tagging.fct) {
-      var items = data.split(ctrl.taggingTokens.tokens[0]); // split by first token only
-      if (items && items.length > 0) {
-        angular.forEach(items, function (item) {
-          var newItem = ctrl.tagging.fct(item);
-          if (newItem) {
-            ctrl.select(newItem, true);
-          }
-        });
+    var data;
+
+    if (window.clipboardData && window.clipboardData.getData) { // IE
+      data = window.clipboardData.getData('Text');
+    } else {
+      data = (e.originalEvent || e).clipboardData.getData('text/plain');
+    }
+
+    if (data && data.length > 0) {
+      // If tagging try to split by tokens and add items
+      if (ctrl.taggingTokens.isActivated) {
+        var items = data.split(ctrl.taggingTokens.tokens[0]); // split by first token only
+        if (items && items.length > 0) {
+          $timeout(function () {
+            angular.forEach(items, function (item) {
+              var newItem = ctrl.tagging.fct ? ctrl.tagging.fct(item) : item;
+              if (newItem) {
+                ctrl.select(newItem, true);
+              }
+            });
+          });
+          e.stopPropagation();
+        }
+      } else if (ctrl.paste) {
+        ctrl.paste(data);
         e.preventDefault();
         e.stopPropagation();
       }

src/uiSelectDirective.js

@@ -85,6 +85,10 @@ uis.directive('uiSelect',
           $select.resetSearchInput = resetSearchInput !== undefined ? resetSearchInput : true;
         });
 
+        attrs.$observe('paste', function() {
+          $select.paste = scope.$eval(attrs.paste);
+        });
+
         attrs.$observe('tagging', function() {
           if(attrs.tagging !== undefined)
           {