Copied autocomplete from dev branch.

1 files changed, 445 insertions, 0 deletions

diff --git a/ui/jquery.ui.autocomplete.js b/ui/jquery.ui.autocomplete.js
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@@ -0,0 +1,445 @@
+/*
+ * jQuery UI Autocomplete @VERSION
+ *
+ * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://docs.jquery.com/UI/Autocomplete
+ *
+ * Depends:
+ *	jquery.ui.core.js
+ *	jquery.ui.widget.js
+ */
+(function($) {
+
+$.widget("ui.autocomplete", {
+	options: {
+		minLength: 1,
+		delay: 300
+	},
+	_init: function() {
+		var self = this;
+		this.element
+			.addClass("ui-autocomplete ui-widget ui-widget-content ui-corner-all")
+			.attr("autocomplete", "off")
+			// TODO verify these actually work as intended
+			.attr({
+				role: "textbox",
+				"aria-autocomplete": "list",
+				"aria-haspopup": "true"
+			})
+			.bind("keydown.autocomplete", function(event) {
+				var keyCode = $.ui.keyCode;
+				switch(event.keyCode) {
+				case keyCode.PAGE_UP:
+					self._move("previousPage", event);
+					break;
+				case keyCode.PAGE_DOWN:
+					self._move("nextPage", event);
+					break;
+				case keyCode.UP:
+					self._move("previous", event);
+					// prevent moving cursor to beginning of text field in some browsers
+					event.preventDefault();
+					break;
+				case keyCode.DOWN:
+					self._move("next", event);
+					// prevent moving cursor to end of text field in some browsers
+					event.preventDefault();
+					break;
+				case keyCode.ENTER:
+					// when menu is open or has focus
+					if (self.menu && self.menu.active) {
+						event.preventDefault();
+					}
+				case keyCode.TAB:
+					if (!self.menu || !self.menu.active) {
+						return;
+					}
+					self.menu.select();
+					break;
+				case keyCode.ESCAPE:
+					self.element.val(self.term);
+					self.close(event);
+					break;
+				case 16:
+				case 17:
+				case 18:
+					// ignore metakeys (shift, ctrl, alt)
+					break;
+				default:
+					// keypress is triggered before the input value is changed
+					clearTimeout(self.searching);
+					self.searching = setTimeout(function() {
+						self.search(null, event);
+					}, self.options.delay);
+					break;
+				}
+			})
+			.bind("focus.autocomplete", function() {
+				self.previous = self.element.val();
+			})
+			.bind("blur.autocomplete", function(event) {
+				clearTimeout(self.searching);
+				// clicks on the menu (or a button to trigger a search) will cause a blur event
+				// TODO try to implement this without a timeout, see clearTimeout in search()
+				self.closing = setTimeout(function() {
+					self.close(event);
+				}, 150);
+			});
+		this._initSource();
+		this.response = function() {
+			return self._response.apply(self, arguments);
+		};
+	},
+
+	destroy: function() {
+		this.element
+			.removeClass("ui-autocomplete ui-widget ui-widget-content ui-corner-all")
+			.removeAttr("autocomplete")
+			.removeAttr("role")
+			.removeAttr("aria-autocomplete")
+			.removeAttr("aria-haspopup");
+		if (this.menu) {
+			this.menu.element.remove();
+		}
+		$.Widget.prototype.destroy.call(this);
+	},
+
+	_setOption: function(key) {
+		$.Widget.prototype._setOption.apply(this, arguments);
+		if (key == "source") {
+			this._initSource();
+		}
+	},
+
+	_initSource: function() {
+		if ($.isArray(this.options.source)) {
+			var array = this.options.source;
+			this.source = function(request, response) {
+				// escape regex characters
+				var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i");
+				response($.grep(array, function(value) {
+    				return matcher.test(value.value || value.label || value);
+				}));
+			};
+		} else if (typeof this.options.source == "string") {
+			var url = this.options.source;
+			this.source = function(request, response) {
+				$.getJSON(url, request, response);
+			};
+		} else {
+			this.source = this.options.source;
+		}
+	},
+
+	search: function(value, event) {
+		value = value != null ? value : this.element.val();
+		if (value.length < this.options.minLength) {
+			return this.close(event);
+		}
+
+		clearTimeout(this.closing);
+		if (this._trigger("search") === false) {
+			return;
+		}
+
+		return this._search(value);
+	},
+
+	_search: function(value) {
+		this.term = this.element
+			.addClass("ui-autocomplete-loading")
+			// always save the actual value, not the one passed as an argument
+			.val();
+
+		this.source({ term: value }, this.response);
+	},
+
+	_response: function(content) {
+		if (content.length) {
+			content = this._normalize(content);
+			this._trigger("open");
+			this._suggest(content);
+		} else {
+			this.close();
+		}
+		this.element.removeClass("ui-autocomplete-loading");
+	},
+
+	close: function(event) {
+		clearTimeout(this.closing);
+		if (this.menu) {
+			this._trigger("close", event);
+			this.menu.element.remove();
+			this.menu = null;
+		}
+		if (this.previous != this.element.val()) {
+			this._trigger("change", event);
+		}
+	},
+
+	_normalize: function(items) {
+		// assume all items have the right format when the first item is complete
+		if (items.length && items[0].label && items[0].value) {
+			return items;
+		}
+		return $.map(items, function(item) {
+			if (typeof item == "string") {
+				return {
+					label: item,
+					value: item
+				};
+			}
+			return $.extend({
+				label: item.label || item.value,
+				value: item.value || item.label
+			}, item);
+		});
+	},
+
+	_suggest: function(items) {
+		(this.menu && this.menu.element.remove());
+		var self = this,
+			ul = $("<ul></ul>"),
+			parent = this.element.parent();
+
+		$.each(items, function(index, item) {
+			$("<li></li>")
+				.data("item.autocomplete", item)
+				.append("<a>" + item.label + "</a>")
+				.appendTo(ul);
+		});
+		this.menu = ul
+			.addClass("ui-autocomplete-menu")
+			.appendTo(parent)
+			.menu({
+				focus: function(event, ui) {
+					var item = ui.item.data("item.autocomplete");
+					if (false !== self._trigger("focus", null, { item: item })) {
+						// use value to match what will end up in the input
+						self.element.val(item.value);
+					}
+				},
+				selected: function(event, ui) {
+					var item = ui.item.data("item.autocomplete");
+					if (false !== self._trigger('select', event, { item: item })) {
+						self.element.val( item.value );
+					}
+					self.close(event);
+					self.previous = self.element.val();
+					// only trigger when focus was lost (click on menu)
+					if (self.element[0] != document.activeElement) {
+						self.element.focus();
+					}
+				}
+			})
+			// workaround for jQuery bug #5781 http://dev.jquery.com/ticket/5781
+			.css({ top: 0, left: 0 })
+			.position({
+				my: "left top",
+				at: "left bottom",
+				of: this.element
+			})
+			.data("menu");
+		if (ul.width() <= this.element.width()) {
+			ul.width(this.element.width());
+		}
+	},
+
+	_move: function(direction, event) {
+		if (!this.menu) {
+			this.search(null, event);
+			return;
+		}
+		if (this.menu.first() && /^previous/.test(direction)
+				|| this.menu.last() && /^next/.test(direction)) {
+			this.element.val(this.term);
+			this.menu.deactivate();
+			return;
+		}
+		this.menu[direction]();
+	},
+
+	widget: function() {
+		// return empty jQuery object when menu isn't initialized yet
+		return this.menu && this.menu.element || $([]);
+	}
+});
+
+$.extend($.ui.autocomplete, {
+	escapeRegex: function(value) {
+		return value.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1");
+	}
+});
+
+})(jQuery);
+
+/*
+ * jQuery UI Menu (not officially released)
+ * 
+ * This widget isn't yet finished and the API is subject to change. We plan to finish
+ * it for the next release. You're welcome to give it a try anyway and give us feedback,
+ * as long as you're okay with migrating your code later on. We can help with that, too.
+ *
+ * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://docs.jquery.com/UI/Menu
+ *
+ * Depends:
+ *	jquery.ui.core.js
+ *  jquery.ui.widget.js
+ */
+(function($) {
+
+$.widget("ui.menu", {
+	_init: function() {
+		var self = this;
+		this.element
+			.addClass("ui-menu ui-widget ui-widget-content ui-corner-all")
+			.attr({
+				role: "menu",
+				"aria-activedescendant": "ui-active-menuitem"
+			})
+			.click(function(e) {
+				// temporary
+				e.preventDefault();
+				self.select();
+			});
+		var items = this.element.children("li")
+			.addClass("ui-menu-item")
+			.attr("role", "menuitem");
+		
+		items.children("a")
+			.addClass("ui-corner-all")
+			.attr("tabindex", -1)
+			// mouseenter doesn't work with event delegation
+			.mouseenter(function() {
+				self.activate($(this).parent());
+			});
+	},
+
+	activate: function(item) {
+		this.deactivate();
+		this.active = item.eq(0)
+			.children("a")
+				.addClass("ui-state-hover")
+				.attr("id", "ui-active-menuitem")
+			.end();
+		this._trigger("focus", null, { item: item });
+		if (this.hasScroll()) {
+			var offset = item.offset().top - this.element.offset().top,
+				scroll = this.element.attr("scrollTop"),
+				elementHeight = this.element.height();
+			if (offset < 0) {
+				this.element.attr("scrollTop", scroll + offset);
+			} else if (offset > elementHeight) {
+				this.element.attr("scrollTop", scroll + offset - elementHeight + item.height());
+			}
+		}
+	},
+
+	deactivate: function() {
+		if (!this.active) { return; }
+
+		this.active.children("a")
+			.removeClass("ui-state-hover")
+			.removeAttr("id");
+		this.active = null;
+	},
+
+	next: function() {
+		this.move("next", "li:first");
+	},
+
+	previous: function() {
+		this.move("prev", "li:last");
+	},
+
+	first: function() {
+		return this.active && !this.active.prev().length;
+	},
+
+	last: function() {
+		return this.active && !this.active.next().length;
+	},
+
+	move: function(direction, edge) {
+		if (!this.active) {
+			this.activate(this.element.children(edge));
+			return;
+		}
+		var next = this.active[direction]();
+		if (next.length) {
+			this.activate(next);
+		} else {
+			this.activate(this.element.children(edge));
+		}
+	},
+
+	// TODO merge with previousPage
+	nextPage: function() {
+		if (this.hasScroll()) {
+			// TODO merge with no-scroll-else
+			if (!this.active || this.last()) {
+				this.activate(this.element.children(":first"));
+				return;
+			}
+			var base = this.active.offset().top,
+				height = this.element.height(),
+				result = this.element.children("li").filter(function() {
+					var close = $(this).offset().top - base - height + $(this).height();
+					// TODO improve approximation
+					return close < 10 && close > -10;
+				});
+
+			// TODO try to catch this earlier when scrollTop indicates the last page anyway
+			if (!result.length) {
+				result = this.element.children(":last");
+			}
+			this.activate(result);
+		} else {
+			this.activate(this.element.children(!this.active || this.last() ? ":first" : ":last"));
+		}
+	},
+
+	// TODO merge with nextPage
+	previousPage: function() {
+		if (this.hasScroll()) {
+			// TODO merge with no-scroll-else
+			if (!this.active || this.first()) {
+				this.activate(this.element.children(":last"));
+				return;
+			}
+
+			var base = this.active.offset().top,
+				height = this.element.height();
+				result = this.element.children("li").filter(function() {
+					var close = $(this).offset().top - base + height - $(this).height();
+					// TODO improve approximation
+					return close < 10 && close > -10;
+				});
+
+			// TODO try to catch this earlier when scrollTop indicates the last page anyway
+			if (!result.length) {
+				result = this.element.children(":first");
+			}
+			this.activate(result);
+		} else {
+			this.activate(this.element.children(!this.active || this.first() ? ":last" : ":first"));
+		}
+	},
+
+	hasScroll: function() {
+		return this.element.height() < this.element.attr("scrollHeight");
+	},
+
+	select: function() {
+		this._trigger("selected", null, { item: this.active });
+	}
+});
+
+})(jQuery);
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