wisemapping-frontend/packages/mindplot/lib/components/libraries/hotkeys/jquery.hotkeys.js
2021-10-04 17:05:34 -07:00

173 lines
4.0 KiB
JavaScript

/*
* jQuery Hotkeys Plugin
* Copyright 2010, John Resig
* Dual licensed under the MIT or GPL Version 2 licenses.
*
* Based upon the plugin by Tzury Bar Yochay:
* http://github.com/tzuryby/hotkeys
*
* Original idea by:
* Binny V A, http://www.openjs.com/scripts/events/keyboard_shortcuts/
*/
/*
* One small change is: now keys are passed by object { keys: '...' }
* Might be useful, when you want to pass some other data to your handler
*/
(function (jQuery) {
jQuery.hotkeys = {
version: '0.8',
specialKeys: {
8: 'backspace',
9: 'tab',
10: 'return',
13: 'enter',
16: 'shift',
17: 'ctrl',
18: 'alt',
19: 'pause',
20: 'capslock',
27: 'esc',
32: 'space',
33: 'pageup',
34: 'pagedown',
35: 'end',
36: 'home',
37: 'left',
38: 'up',
39: 'right',
40: 'down',
45: 'insert',
46: 'del',
96: '0',
97: '1',
98: '2',
99: '3',
100: '4',
101: '5',
102: '6',
103: '7',
104: '8',
105: '9',
106: '*',
107: '+',
109: '-',
110: '.',
111: '/',
112: 'f1',
113: 'f2',
114: 'f3',
115: 'f4',
116: 'f5',
117: 'f6',
118: 'f7',
119: 'f8',
120: 'f9',
121: 'f10',
122: 'f11',
123: 'f12',
144: 'numlock',
145: 'scroll',
186: ';',
191: '/',
220: '\\',
222: "'",
224: 'meta',
},
shiftNums: {
'`': '~',
1: '!',
2: '@',
3: '#',
4: '$',
5: '%',
6: '^',
7: '&',
8: '*',
9: '(',
0: ')',
'-': '_',
'=': '+',
';': ': ',
"'": '"',
',': '<',
'.': '>',
'/': '?',
'\\': '|',
},
};
function keyHandler(handleObj) {
if (typeof handleObj.data === 'string') {
handleObj.data = { keys: handleObj.data };
}
// Only care when a possible input has been specified
if (!handleObj.data || !handleObj.data.keys || typeof handleObj.data.keys !== 'string') {
return;
}
const origHandler = handleObj.handler;
const keys = handleObj.data.keys.toLowerCase().split(' ');
const textAcceptingInputTypes = ['text', 'password', 'number', 'email', 'url', 'range', 'date', 'month', 'week', 'time', 'datetime', 'datetime-local', 'search', 'color', 'tel'];
handleObj.handler = function (event) {
// Don't fire in text-accepting inputs that we didn't directly bind to
if (this !== event.target && (/textarea|select/i.test(event.target.nodeName)
|| jQuery.inArray(event.target.type, textAcceptingInputTypes) > -1)) {
return;
}
const special = jQuery.hotkeys.specialKeys[event.keyCode];
const character = String.fromCharCode(event.which).toLowerCase();
let modif = ''; const
possible = {};
// check combinations (alt|ctrl|shift+anything)
if (event.altKey && special !== 'alt') {
modif += 'alt+';
}
if (event.ctrlKey && special !== 'ctrl') {
modif += 'ctrl+';
}
// TODO: Need to make sure this works consistently across platforms
if (event.metaKey && !event.ctrlKey && special !== 'meta') {
modif += 'meta+';
}
if (event.shiftKey && special !== 'shift') {
modif += 'shift+';
}
if (special) {
possible[modif + special] = true;
}
if (character) {
possible[modif + character] = true;
possible[modif + jQuery.hotkeys.shiftNums[character]] = true;
// "$" can be triggered as "Shift+4" or "Shift+$" or just "$"
if (modif === 'shift+') {
possible[jQuery.hotkeys.shiftNums[character]] = true;
}
}
for (let i = 0, l = keys.length; i < l; i++) {
if (possible[keys[i]]) {
return origHandler.apply(this, arguments);
}
}
};
}
jQuery.each(['keydown', 'keyup', 'keypress'], function () {
jQuery.event.special[this] = { add: keyHandler };
});
}(this.jQuery));