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Support Ctrl-A, Ctrl-W and Ctrl-U #258

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Merged
merged 1 commit into from
May 15, 2018
Merged

Support Ctrl-A, Ctrl-W and Ctrl-U #258

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113 changes: 91 additions & 22 deletions lib/web_console/templates/console.js.erb
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Original file line number Diff line number Diff line change
Expand Up @@ -654,57 +654,85 @@ REPLConsole.prototype.onKeyDown = function(ev) {
}

switch (ev.keyCode) {
case 69:
// Ctrl-E
case 65: // Ctrl-A
if (ev.ctrlKey) {
this.setInput(this._input, 0);
ev.preventDefault();
}
break;

case 69: // Ctrl-E
if (ev.ctrlKey) {
this.onTabKey();
ev.preventDefault();
}
break;
case 9:
// Tab

case 87: // Ctrl-W
if (ev.ctrlKey) {
this.deleteWord();
ev.preventDefault();
}
break;

case 85: // Ctrl-U
if (ev.ctrlKey) {
this.deleteLine();
ev.preventDefault();
}
break;

case 69: // Ctrl-E
if (ev.ctrlKey) {
this.onTabKey();
ev.preventDefault();
}
break;

case 80: // Ctrl-P
if (! ev.ctrlKey) break;

case 78: // Ctrl-N
if (! ev.ctrlKey) break;

case 9: // Tab
this.onTabKey();
ev.preventDefault();
break;
case 13:
// Enter key

case 13: // Enter key
this.onEnterKey();
ev.preventDefault();
break;
case 80:
// Ctrl-P
if (! ev.ctrlKey) break;
case 38:
// Up arrow

case 38: // Up arrow
this.onNavigateHistory(-1);
ev.preventDefault();
break;
case 78:
// Ctrl-N
if (! ev.ctrlKey) break;
case 40:
// Down arrow

case 40: // Down arrow
this.onNavigateHistory(1);
ev.preventDefault();
break;
case 37:
// Left arrow

case 37: // Left arrow
var caretPos = this._caretPos > 0 ? this._caretPos - 1 : this._caretPos;
this.setInput(this._input, caretPos);
ev.preventDefault();
break;
case 39:
// Right arrow

case 39: // Right arrow
var length = this._input.length;
var caretPos = this._caretPos < length ? this._caretPos + 1 : this._caretPos;
this.setInput(this._input, caretPos);
ev.preventDefault();
break;
case 8:
// Delete

case 8: // Delete
this.deleteAtCurrent();
ev.preventDefault();
break;

default:
break;
}
Expand Down Expand Up @@ -757,6 +785,47 @@ REPLConsole.prototype.deleteAtCurrent = function() {
}
};

/**
* Deletes the current line.
*/
REPLConsole.prototype.deleteLine = function() {
if (this._caretPos > 0) {
this.setInput("", 0);

if (!this._input) {
this.autocomplete && this.autocomplete.cancel();
this.autocomplete = false;
}
}
};

/**
* Deletes the current word.
*/
REPLConsole.prototype.deleteWord = function() {
if (this._caretPos > 0) {
var i = 1, current = this._caretPos;
while (this._input[current - i++] == " ");

var deleteIndex = 0;
for (; current - i > 0; i++) {
if (this._input[current - i] == " ") {
deleteIndex = current - i;
break;
}
}

var before = this._input.substring(0, deleteIndex);
var after = this._input.substring(current, this._input.length);
this.setInput(before + after, deleteIndex);

if (!this._input) {
this.autocomplete && this.autocomplete.cancel();
this.autocomplete = false;
}
}
};

/**
* Insert a character at the current position.
*/
Expand Down