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Restricted ctrl-key SerialPort hack to the ctrlKey event property

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This commit is contained in:
Jeff Parsons 2015-08-15 10:59:07 -07:00
commit 9b6bb9c0c1
1 changed files with 2 additions and 4 deletions
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6
modules/pcjs/lib/serialport.js
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@ -330,8 +330,6 @@ SerialPort.prototype.setBinding = function(sHTMLType, sBinding, control)
/* /*
* By establishing an onkeypress handler here, we make it possible for DOS commands like * By establishing an onkeypress handler here, we make it possible for DOS commands like
* "CTTY COM1" to more or less work (use "CTTY CON" to restore control to the DOS console). * "CTTY COM1" to more or less work (use "CTTY CON" to restore control to the DOS console).
*
* WARNING: This isn't really a supported feature yet; very much a work-in-progress.
*/ */
control.onkeydown = function onKeyDownSerial(event) { control.onkeydown = function onKeyDownSerial(event) {
/* /*
@ -343,11 +341,11 @@ SerialPort.prototype.setBinding = function(sHTMLType, sBinding, control)
* (eg, IE, Edge, Chrome for Windows, etc), because keys like Ctrl-C and Ctrl-S have * (eg, IE, Edge, Chrome for Windows, etc), because keys like Ctrl-C and Ctrl-S have
* special meanings (eg, Copy, Save). To the extent the browser will allow it, we * special meanings (eg, Copy, Save). To the extent the browser will allow it, we
* attempt to disable that default behavior when this control receives an onkeydown * attempt to disable that default behavior when this control receives an onkeydown
* event for one of those keys (which is probably the only event the browser will generate). * event for one of those keys (probably the only event the browser generates for them).
*/ */
event = event || window.event; event = event || window.event;
var keyCode = event.keyCode; var keyCode = event.keyCode;
if (keyCode === 0x08 || keyCode >= 0x41 && keyCode <= 0x5A && (event.ctrlKey || event.metaKey)) { if (keyCode === 0x08 || event.ctrlKey && keyCode >= 0x41 && keyCode <= 0x5A) {
if (event.preventDefault) event.preventDefault(); if (event.preventDefault) event.preventDefault();
if (keyCode > 0x40) keyCode -= 0x40; if (keyCode > 0x40) keyCode -= 0x40;
serial.sendRBR([keyCode]); serial.sendRBR([keyCode]);