Include hotkey prototype lib

git-svn-id: https://oss.gonicus.de/repositories/gosa/trunk@17820 594d385d-05f5-0310-b6e9-bd551577e9d8

diff --git a/gosa-core/html/include/hotkeys.js b/gosa-core/html/include/hotkeys.js
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+++ b/gosa-core/html/include/hotkeys.js
@@ -0,0 +1,133 @@
+/*
+Copyright (c) 2009 Victor Stanciu - http://www.victorstanciu.ro
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+Hotkeys = {
+    bound:    false,
+    queue:    [],
+    hotkeys:  [],
+    match:    false,
+
+    keycodes: {
+        "backspace": 8, "tab": 9, "enter": 13, "shift": 16, "ctrl": 17, "alt": 18, "pause": 19, "caps": 20, "esc": 27, "pgup": 33, "pgdown": 34, "end": 35, "home": 36, "left": 37, "up": 38, "right": 39, "down": 40, "ins": 45, "del": 46,
+        "0": 48, "1": 49, "2": 50, "3": 51, "4": 52, "5": 53, "6": 54, "7": 55, "8": 56, "9": 57, "a": 65, "b": 66, "c": 67, "d": 68, "e": 69, "f": 70, "g": 71, "h": 72, "i": 73, "j": 74, "k": 75, "l": 76, "m": 77, "n": 78, "o": 79, "p": 80, "q": 81, "r": 82, "s": 83, "t": 84, "u": 85, "v": 86, "w": 87, "x": 88, "y": 89, "z": 90,
+        "left-win": 91, "right-win": 92, "select": 93, "num0": 96, "num1": 97, "num2": 98, "num3": 99, "num4": 100, "num5": 101, "num6": 102, "num7": 103, "num8": 104, "num9": 105, "multiply": 106, "add": 107, "subtract": 109, "dec": 110, "divide": 111,
+        "f1": 112, "f2": 113, "f3": 114, "f4": 115, "f5": 116, "f6": 117, "f7": 118, "f8": 119, "f9": 120, "f10": 121, "f11": 122, "f12": 123,
+        "num": 144, "scroll": 145, "semi-colon": 186, "equal": 187, "comma": 188, "dash": 189, "period": 190, "slash": 191, "grave": 192, "open-bracket": 219, "backslash": 220, "close-braket": 221, "single-quote": 222
+    },
+    
+    bind: function (combo, action) {
+        // pass any number of additional arguments
+        var args = Array.prototype.slice.call(arguments);
+            args.shift();
+            args.shift();
+
+        var hotkey = new Hotkey(combo, action, args);
+        this.hotkeys.push(hotkey);
+    },
+
+    keydown: function (event) {
+
+        // don't do anything on inputs and textareas
+        var element = event.element();
+        if (element.tagName == 'INPUT' || element.tagName == 'TEXTAREA') {
+            return;
+        }
+
+        var code = event.keyCode ? event.keyCode : event.charCode;
+        if (Hotkeys.queue.indexOf(code) == -1) {
+            Hotkeys.queue.push(code);
+            Hotkeys.queue.sort();
+
+            var hotkey = Hotkeys.hotkeys.find(function (hotkey) {
+                return hotkey.keycodes.toString() == Hotkeys.queue.toString();
+            });            
+
+            if (hotkey) {
+                Hotkeys.match = true;
+
+                // stop browser shortcut
+                event.cancelBubble = true;
+                event.returnValue = false;
+
+                if (event.stopPropagation) {
+                    event.stopPropagation();
+                    event.preventDefault();
+                }
+                event.stop();
+                
+                hotkey.trigger();
+                Hotkeys.release();
+            }
+        }
+    },
+
+    keyup: function (event) {
+        var code = event.keyCode ? event.keyCode : event.charCode;
+        Hotkeys.queue.splice(Hotkeys.queue.indexOf(code), 1);
+    },
+
+    keypress: function (event) {
+        // stop browser shortcut on Firefox
+        if (Hotkeys.match) {
+            event.stop();
+        }
+    },
+
+    release: function () {
+        Hotkeys.queue = [];
+        Hotkeys.match = false;
+    }
+}
+
+Hotkey  = Class.create(Abstract, {
+    initialize: function (combo, action, params) {
+        if (!Hotkeys.bound) {
+            Hotkeys.bound = true;
+            Event.observe(document, 'keydown',  Hotkeys.keydown);
+            Event.observe(document, 'keyup',    Hotkeys.keyup);
+            Event.observe(document, 'keypress', Hotkeys.keypress);
+        }
+
+        this.combo      = combo.split("+");
+        this.action     = action;
+        this.params     = params;
+        this.keycodes   = [];
+
+        if (this.combo) {
+            this.combo.each((function (combo) {
+                this.keycodes.push(Hotkeys.keycodes[combo]);
+            }).bind(this));
+
+            this.keycodes.sort();
+        }
+    },
+
+    trigger: function () {
+        if (typeof(this.action) == 'function') {
+            // call the function with the arguments given on bind()
+            this.action.apply(this, this.params);
+        }
+    }
+});
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