Comments on: Handling Keyboard Shortcuts in JavaScript

By: pass4sure

pass4sure — Mon, 01 Mar 2010 02:38:06 +0000

Pass4sure is your best choice for any IT certifications because of its high quality. It provides full-scale study materials, including the questions, answers and pinpoint explanations supplied by a group of IT experts. Its considerate & warmhearted service and complete safeguard measures remove all your doubts about the products quality.The Most Popular exams List :JK0-016 1Y0-A05 642-812 HP0-S21 642-533 646-985 310-202 640-816 350-030-LAB 1Z0-051 650-175 132-S-911.3 640-816 642-436 BR0-001 VCP-310 312-50 1Z0-042 JN0-532 XK0-002 642-446 NS0-163 640-802 Click Passforsure to get more information!

By: Fallen

Fallen — Wed, 12 Dec 2007 09:46:52 +0000

I am trying to figure all out and it seems like a very powerful thing. I was struggling with shortcuts for some time now, but this one made my life easier…
just my 2c

By: jab

jab — Mon, 27 Aug 2007 09:11:31 +0000

One of my favorite sites for keyboard shortcuts is keyxl.com. They must have hundreds of programs listed.

http://www.keyxl.com

By: Morris

Morris — Tue, 24 Apr 2007 06:03:52 +0000

If using Dojo, you can do something similar:

getKeyName: function(event) { var keyName = dojo.event.browser.revKeys[event.keyCode]; if (keyName) { keyName = keyName.substring(4); // Drop KEY_ prefix } if (keyName && keyName != 'SHIFT' && keyName != 'ALT' && keyName != 'CTRL') { if (event.shiftKey) { keyName = 'SHIFT_' + keyName; } if (event.altKey) { keyName = 'ALT_' + keyName; } if (event.ctrlKey) { keyName = 'CTRL_' + keyName; } } return keyName; },


	onKeyDown: function(event) {

		var keyFn = this.keyActions[this.getKeyName(event)];

		if (keyFn) {

			if (!keyFn.call(this, event)) {

				event.preventDefault();

			}

		}

	},
	keyActions: {

		UP_ARROW: function() {

				this.selectMoveBy(-1,0);

			},

		DOWN_ARROW: function() {

				this.selectMoveBy(1,0);

			},

		LEFT_ARROW: function() {

				this.selectMoveBy(0,-1);

			},

		RIGHT_ARROW: function() {

				this.selectMoveBy(0,1);

			},

		SHIFT_UP_ARROW: function() {

				this.selectMoreBlock(-1,0);

			},

		SHIFT_DOWN_ARROW: function() {

				this.selectMoreBlock(1,0);

			},

		SHIFT_LEFT_ARROW: function() {

				this.selectMoreBlock(0,-1);

			},

		SHIFT_RIGHT_ARROW: function() {

				this.selectMoreBlock(0,1);

			},

		CTRL_HOME: function() {

				this.goHome();

			},

		CTRL_END: function() {

				this.goEnd();

			},

		HOME: function() {

				this.selectMoveBy(0,-10000);

			},

		END: function() {

				this.selectMoveBy(0,10000);

			},

		PAGE_UP: function() {

				this.movePage(-1);

			},

		PAGE_DOWN: function() {

				this.movePage(1);

			},

		ESCAPE: function() {

			if (this.columnResizing) {

				this.stopColumnResizing(-1);

			} else {

				return true;

			}

		},

		TAB: function() {

				return true;

			},

		CTRL_TAB: function() {

				return true;

			},

		SHIFT_TAB: function() {

				return true;

			}

	}

By: Peter

Peter — Thu, 19 Apr 2007 23:41:52 +0000

It’s a great library! But how do you remove the shortcut if you want to replace it with another or simply release the shortcut?

By: Liming Xu

Liming Xu — Thu, 19 Apr 2007 15:45:48 +0000

pretty userful. I wonder if i can somehow combined it with my ajax libraries and let the users define their hot-keys…

By: Gilles

Gilles — Thu, 19 Apr 2007 12:45:46 +0000

I’ve made a port to a jQuery plugin of this. I haven’t added it to SVN yet, but i tested it against “ctrl+s” in firefox. The event didn’t trigger the “Save as” function :)

By: Rob Wilkerson

Rob Wilkerson — Thu, 19 Apr 2007 12:19:48 +0000

Looks great, but will be dependent on the user’s environment, running applications and previously defined hotkeys. On my system, one of his demo shortcuts (Shift+F1) displays the Google Desktop browser and doesn’t activate the intended action.

Still a great library if you can live with the potential for variation among user systems. Hopefully keyboard shortcuts are merely a navigational *aid*. :-)

By: Tim Leonard

Tim Leonard — Thu, 19 Apr 2007 07:49:51 +0000

I’m already using this in some projects.

Seems to work quite well… but obviously some key combos are a no-go in different browsers. :)

By: Marcel

Marcel — Thu, 19 Apr 2007 07:28:27 +0000

I wonder..

shortcut(”Alt+F4″, function() {
return false;
});

To stop people from instantly closing my popups.. don’t worry, they’re actually informative popups in a custom built intranet. I guess it won’t work ;-)