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Halt (for now) on any 80386 GP fault, and prevent SPACE from scrolling the page

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This commit is contained in:
Jeff Parsons 2015-08-07 00:15:29 -07:00
commit c2d9d6b25f
3 changed files with 37 additions and 24 deletions
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11
modules/pcjs/lib/serialport.js
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@ -336,23 +336,32 @@ SerialPort.prototype.setBinding = function(sHTMLType, sBinding, control)
control.onkeydown = function onKeyDownSerial(event) {
/*
* This is required in addition to onkeypress, because it's the only way to prevent
* BACKSPACE from being interpreted by the browser as a "Back" operation.
* BACKSPACE (keyCode 8) from being interpreted by the browser as a "Back" operation;
* moreover, not all browsers generate an onkeypress notification for BACKSPACE.
*/
event = event || window.event;
var keyCode = event.keyCode;
if (keyCode === 8) {
if (event.preventDefault) event.preventDefault();
serial.sendRBR([keyCode]);
return true;
}
};
control.onkeypress = function onKeyPressSerial(event) {
/*
* Browser-independent keyCode extraction (refer to keyPress() and the other key
* event handlers in keyboard.js).
*
* The additional check for SPACE (keyCode 32) and subsequent preventDefault() call
* prevents SPACE from bubbling up to the document event handlers, where its default
* behavior is typically to scroll the entire page -- a real nuisance.
*/
event = event || window.event;
var keyCode = event.which || event.keyCode;
serial.sendRBR([keyCode]);
if (keyCode == 32) {
if (event.preventDefault) event.preventDefault();
}
};
return true;