Dactyloidae/devtools/shared/gcli/source/lib/gcli/commands/clear.js

59 lines
1.7 KiB
JavaScript

/*
* Copyright 2012, Mozilla Foundation and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
var l10n = require('../util/l10n');
exports.items = [
{
// A command to clear the output area
item: 'command',
runAt: 'client',
name: 'clear',
description: l10n.lookup('clearDesc'),
returnType: 'clearoutput',
exec: function(args, context) { }
},
{
item: 'converter',
from: 'clearoutput',
to: 'view',
exec: function(ignore, conversionContext) {
return {
html: '<span onload="${onload}"></span>',
data: {
onload: function(ev) {
// element starts off being the span above, and we walk up the
// tree looking for the terminal
var element = ev.target;
while (element != null && element.terminal == null) {
element = element.parentElement;
}
if (element == null) {
// This is only an event handler on a completed command
// So we're relying on this showing up in the console
throw new Error('Failed to find clear');
}
element.terminal.clear();
}
}
};
}
}
];