Refactor the inline editing Javascript code in Futon to make it reusable.

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@734390 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 104 insertions, 0 deletions

diff --git a/share/www/script/jquery.editinline.js b/share/www/script/jquery.editinline.js
new file mode 100644
index 00000000..bd91e7e1
--- /dev/null
+++ b/share/www/script/jquery.editinline.js
@@ -0,0 +1,104 @@
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License.  You may obtain a copy
+// of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+(function($) {
+
+  $.fn.makeEditable = function(options) {
+    options = $.extend({
+      allowEmpty: true,
+      acceptLabel: "",
+      cancelLabel: "",
+      toolTip: "Double click to edit",
+
+      // callbacks
+      begin: function() { return true },
+      accept: function(newValue, oldValue) {},
+      cancel: function(oldValue) {},
+      createInput: function(value) { return $("<input type='text'>") },
+      prepareInput: function(input) {},
+      end: function(keyCode) {},
+      populate: function(value) { return value },
+      validate: function() { return true }
+    }, options || {});
+
+    return this.each(function() {
+      var elem = $(this);
+      elem.attr("title", options.toolTip).dblclick(function() {
+        var oldHtml = elem.html();
+        var oldText = options.populate($.trim(elem.text()));
+
+        if (!options.begin.apply(elem[0], [oldText])) {
+          return;
+        }
+
+        var input = options.createInput.apply(elem[0], [oldText])
+          .addClass("editinline").val(oldText)
+          .dblclick(function() { return false; })
+          .keydown(function(evt) {
+            switch (evt.keyCode) {
+              case 13: { // return
+                if (!input.is("textarea")) applyChange(evt.keyCode);
+                break;
+              }
+              case 27: { // escape
+                cancelChange(evt.keyCode);
+                break;
+              }
+              case 9: { // tab
+                if (!input.is("textarea")) {
+                  applyChange(evt.keyCode);
+                  return false;
+                }
+              }
+            }
+          });
+
+        function applyChange(keyCode) {
+          var newText = input.val();
+          if (newText == oldText) {
+            cancelChange(keyCode);
+            return true;
+          }
+          if ((!options.allowEmpty && !newText.length) ||
+              !options.validate.apply(elem[0], [newText])) {
+            input.addClass("invalid");
+            return false;
+          }
+          input.remove();
+          tools.remove();
+          options.accept.apply(elem[0], [newText, oldText]);
+          elem.removeClass("editinline-container")
+          options.end.apply(elem[0], [keyCode]);
+          return true;
+        }
+
+        function cancelChange(keyCode) {
+          options.cancel.apply(elem[0], [oldText]);
+          elem.html(oldHtml).removeClass("editinline-container");
+          options.end.apply(elem[0], [keyCode]);
+        }
+
+        var tools = $("<span class='editinline-tools'></span>");
+        $("<button type='button' class='apply'></button>")
+          .text(options.acceptLabel).click(applyChange).appendTo(tools);
+        $("<button type='button' class='cancel'></button>")
+          .text(options.cancelLabel).click(cancelChange).appendTo(tools)
+
+        elem.html("").append(tools).append(input)
+          .addClass("editinline-container");
+        options.prepareInput.apply(elem[0], [input[0]]);
+        input.each(function() { this.focus(); this.select(); });
+      });
+    });
+  }
+
+})(jQuery);