186 lines
3.9 KiB
JavaScript
Executable File
186 lines
3.9 KiB
JavaScript
Executable File
/**
|
|
* http://www.openjs.com/scripts/events/keyboard_shortcuts/
|
|
* Version : 2.01.B
|
|
* By Binny V A
|
|
* License : BSD
|
|
*/
|
|
shortcut = {
|
|
'all_shortcuts':{},
|
|
'add': function(shortcut_combination,callback,opt) {
|
|
var default_options = {
|
|
'type':'keydown',
|
|
'propagate':false,
|
|
'disable_in_input':false,
|
|
'target':document,
|
|
'keycode':false
|
|
}
|
|
if(!opt) opt = default_options;
|
|
else {
|
|
for(var dfo in default_options) {
|
|
if(typeof opt[dfo] == 'undefined') opt[dfo] = default_options[dfo];
|
|
}
|
|
}
|
|
var ele = opt.target;
|
|
if(typeof opt.target == 'string') ele = document.getElementById(opt.target);
|
|
var ths = this;
|
|
shortcut_combination = shortcut_combination.toLowerCase();
|
|
var func = function(e) {
|
|
e = e || window.event;
|
|
if(opt['disable_in_input']) {
|
|
var element;
|
|
if(e.target) element=e.target;
|
|
else if(e.srcElement) element=e.srcElement;
|
|
if(element.nodeType==3) element=element.parentNode;
|
|
if(element.tagName == 'INPUT' || element.tagName == 'TEXTAREA') return;
|
|
}
|
|
if (e.keyCode) code = e.keyCode;
|
|
else if (e.which) code = e.which;
|
|
var character = String.fromCharCode(code).toLowerCase();
|
|
if(code == 188) character=",";
|
|
if(code == 190) character=".";
|
|
var keys = shortcut_combination.split("+");
|
|
var kp = 0;
|
|
var shift_nums = {
|
|
"`":"~",
|
|
"1":"!",
|
|
"2":"@",
|
|
"3":"#",
|
|
"4":"$",
|
|
"5":"%",
|
|
"6":"^",
|
|
"7":"&",
|
|
"8":"*",
|
|
"9":"(",
|
|
"0":")",
|
|
"-":"_",
|
|
"=":"+",
|
|
";":":",
|
|
"'":"\"",
|
|
",":"<",
|
|
".":">",
|
|
"/":"?",
|
|
"\\":"|"
|
|
}
|
|
var special_keys = {
|
|
'esc':27,
|
|
'escape':27,
|
|
'tab':9,
|
|
'space':32,
|
|
'return':13,
|
|
'enter':13,
|
|
'backspace':8,
|
|
'scrolllock':145,
|
|
'scroll_lock':145,
|
|
'scroll':145,
|
|
'capslock':20,
|
|
'caps_lock':20,
|
|
'caps':20,
|
|
'numlock':144,
|
|
'num_lock':144,
|
|
'num':144,
|
|
'pause':19,
|
|
'break':19,
|
|
'insert':45,
|
|
'home':36,
|
|
'delete':46,
|
|
'end':35,
|
|
'pageup':33,
|
|
'page_up':33,
|
|
'pu':33,
|
|
'pagedown':34,
|
|
'page_down':34,
|
|
'pd':34,
|
|
'left':37,
|
|
'up':38,
|
|
'right':39,
|
|
'down':40,
|
|
'f1':112,
|
|
'f2':113,
|
|
'f3':114,
|
|
'f4':115,
|
|
'f5':116,
|
|
'f6':117,
|
|
'f7':118,
|
|
'f8':119,
|
|
'f9':120,
|
|
'f10':121,
|
|
'f11':122,
|
|
'f12':123
|
|
}
|
|
var modifiers = {
|
|
shift: { wanted:false, pressed:false},
|
|
ctrl : { wanted:false, pressed:false},
|
|
alt : { wanted:false, pressed:false},
|
|
meta : { wanted:false, pressed:false}
|
|
};
|
|
if(e.ctrlKey)modifiers.ctrl.pressed = true;
|
|
if(e.shiftKey)modifiers.shift.pressed = true;
|
|
if(e.altKey)modifiers.alt.pressed = true;
|
|
if(e.metaKey) modifiers.meta.pressed = true;
|
|
for(var i=0; k=keys[i],i<keys.length; i++) {
|
|
//Modifiers
|
|
if(k == 'ctrl' || k == 'control') {
|
|
kp++;
|
|
modifiers.ctrl.wanted = true;
|
|
} else if(k == 'shift') {
|
|
kp++;
|
|
modifiers.shift.wanted = true;
|
|
} else if(k == 'alt') {
|
|
kp++;
|
|
modifiers.alt.wanted = true;
|
|
} else if(k == 'meta') {
|
|
kp++;
|
|
modifiers.meta.wanted = true;
|
|
} else if(k.length > 1) {
|
|
if(special_keys[k] == code) kp++;
|
|
} else if(opt['keycode']) {
|
|
if(opt['keycode'] == code) kp++;
|
|
} else {
|
|
if(character == k) kp++;
|
|
else {
|
|
if(shift_nums[character] && e.shiftKey) {
|
|
character = shift_nums[character];
|
|
if(character == k) kp++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if(kp == keys.length &&
|
|
modifiers.ctrl.pressed == modifiers.ctrl.wanted &&
|
|
modifiers.shift.pressed == modifiers.shift.wanted &&
|
|
modifiers.alt.pressed == modifiers.alt.wanted &&
|
|
modifiers.meta.pressed == modifiers.meta.wanted) {
|
|
callback(e);
|
|
if(!opt['propagate']) {
|
|
e.cancelBubble = true;
|
|
e.returnValue = false;
|
|
if (e.stopPropagation) {
|
|
e.stopPropagation();
|
|
e.preventDefault();
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
this.all_shortcuts[shortcut_combination] = {
|
|
'callback':func,
|
|
'target':ele,
|
|
'event': opt['type']
|
|
};
|
|
if(ele.addEventListener) ele.addEventListener(opt['type'], func, false);
|
|
else if(ele.attachEvent) ele.attachEvent('on'+opt['type'], func);
|
|
else ele['on'+opt['type']] = func;
|
|
},
|
|
'remove':function(shortcut_combination) {
|
|
shortcut_combination = shortcut_combination.toLowerCase();
|
|
var binding = this.all_shortcuts[shortcut_combination];
|
|
delete(this.all_shortcuts[shortcut_combination])
|
|
if(!binding) return;
|
|
var type = binding['event'];
|
|
var ele = binding['target'];
|
|
var callback = binding['callback'];
|
|
if(ele.detachEvent) ele.detachEvent('on'+type, callback);
|
|
else if(ele.removeEventListener) ele.removeEventListener(type, callback, false);
|
|
else ele['on'+type] = false;
|
|
}
|
|
} |