From 544a38dd45f6a58d34296c6c768afd086eb2ac70 Mon Sep 17 00:00:00 2001
From: Christopher Lenz <cmlenz@apache.org>
Date: Fri, 28 Mar 2008 23:32:19 +0000
Subject: Imported trunk.

git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@642432 13f79535-47bb-0310-9956-ffa450edef68
---
 share/www/script/jquery.suggest.js | 129 +++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 share/www/script/jquery.suggest.js

(limited to 'share/www/script/jquery.suggest.js')

diff --git a/share/www/script/jquery.suggest.js b/share/www/script/jquery.suggest.js
new file mode 100644
index 00000000..4bb8b2d0
--- /dev/null
+++ b/share/www/script/jquery.suggest.js
@@ -0,0 +1,129 @@
+// 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($) {
+
+  suggest = function(elem, options) {
+    var timer = null;
+    var prevVal = null;
+
+    var input = $(elem).attr("autocomplete", "off");
+    var offset = input.offset();
+    var dropdown = $('<ul style="z-index: 10000"></ul>')
+      .addClass(options.dropdownClass).appendTo("body").css({
+        top: (offset.top + elem.offsetHeight) + "px",
+        left: offset.left + "px",
+        minWidth: input.css("width")
+      });
+
+    input
+      .blur(function() {
+        setTimeout(function() { dropdown.hide() }, 200);
+      })
+      .keydown(function(e) {
+        if (timer) clearTimeout(timer);
+        if ($.inArray(e.keyCode, [38, 40]) != -1 ||
+            (dropdown.is(":visible") && (e.keyCode == 27 ||
+             ($.inArray(e.keyCode, [9, 13]) != -1 && getSelection())))) {
+          e.preventDefault(); e.stopPropagation();
+          switch(e.keyCode) {
+            case 38: // up
+              moveUp();
+              break;
+            case 40: // down
+              moveDown();
+              break;
+            case 9:  // tab
+            case 13: // return
+              commit();
+              break;
+            case 27: // escape
+              dropdown.hide();
+              break;
+          }
+          return false;
+        } else {
+          timer = setTimeout(function() { suggest() }, options.delay);
+        }
+      });
+
+    function suggest(force) {
+      var newVal = $.trim(input.val());
+      if (force || newVal != prevVal) {
+        if (force || newVal.length >= options.minChars) {
+          options.callback($.trim(input.val()), function(items) {
+            show(items);
+          });
+        } else {
+          dropdown.hide();
+        }
+        prevVal = newVal;
+      }
+    }
+
+    function show(items) {
+      if (!items) return;
+      if (!items.length) { dropdown.hide(); return; }
+      var html = [];
+      for (var i = 0; i < items.length; i++) {
+        html.push('<li>' + items[i] + '</li>');
+      }
+      dropdown.html(html.join("")).slideDown("fast");
+      dropdown.children('li').click(function(e) {
+        $(this).addClass("selected");
+        commit();
+      });
+    }
+
+    function commit() {
+      var sel = getSelection();
+      if (sel) {
+        prevVal = sel.text();
+        input.val(prevVal);
+        dropdown.hide();
+      }
+      if (timer) clearTimeout(timer)
+    }
+
+    function getSelection() {
+      if (!dropdown.is(":visible")) return null;
+      var sel = dropdown.children("li.selected");
+      return sel.length ? sel : null;
+    }
+
+    function moveDown() {
+      if (!dropdown.is(":visible")) suggest(true);
+      var sel = getSelection();
+      if (sel) sel.removeClass("selected").next().addClass("selected");
+      else dropdown.children("li:first-child").addClass("selected");
+    }
+
+    function moveUp() {
+      if (!dropdown.is(":visible")) suggest(true);
+      var sel = getSelection();
+      if (sel) sel.removeClass("selected").prev().addClass("selected");
+      else dropdown.children("li:last-child").addClass("selected");
+    }
+  }
+
+  $.fn.suggest = function(callback, options) {
+    options = options || {};
+    options.callback = callback;
+    options.delay = options.delay || 100;
+    options.dropdownClass = options.dropdownClass || "suggest-dropdown";
+    options.minChars = options.minChars || 1;
+    return this.each(function() {
+      suggest(this, options);
+    });
+  };
+
+})(jQuery);
-- 
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