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Refactor key binding for turtle and forward key presses if websocket connection is closed.

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This commit is contained in:
Sebastian Serth
2020-10-29 13:48:13 +01:00
parent 7758d39970
commit c93e47277a
1 changed files with 9 additions and 2 deletions
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11
app/assets/javascripts/turtle.js
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@ -26,7 +26,12 @@ function Turtle(unused_pipe_reference, canvas) {
CodeOceanEditorWebsocket.websocket.send('\n'); CodeOceanEditorWebsocket.websocket.send('\n');
}; };
$(document).keydown(function(e) { this.handleArrowKeys = function(e) {
if (!CodeOceanEditorWebsocket.websocket ||
CodeOceanEditorWebsocket.websocket.getReadyState() !== WebSocket.OPEN) {
return;
}
switch(e.which) { switch(e.which) {
case 37: // left case 37: // left
sendEvent(140, 160); sendEvent(140, 160);
@ -47,7 +52,9 @@ function Turtle(unused_pipe_reference, canvas) {
default: return; // exit this handler for other keys default: return; // exit this handler for other keys
} }
e.preventDefault(); // prevent the default action (scroll / move caret) e.preventDefault(); // prevent the default action (scroll / move caret)
}); }
$(document).keydown(this.handleArrowKeys);
this.canvas.click(function (e) { this.canvas.click(function (e) {
if (e.eventPhase !== 2) { if (e.eventPhase !== 2) {