webSockTrace.js
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/*
* Copyright 2014 Open Networking Laboratory
*
* 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.
*/
/*
View that traces messages across the websocket.
@author Simon Hunt
*/
(function (onos) {
'use strict';
var v,
$d,
tb,
out,
which = 'tx',
keyDispatch = {
space: function () {
output(which, "Simon woz 'ere... " + which);
which = (which === 'tx') ? 'rx' : 'tx';
}
};
function addHeader() {
tb = $d.append('div')
.attr('class', 'toolbar');
tb.append('span').text('Web Socket Trace');
}
function addOutput() {
out = $d.append('div')
.attr('class', 'output');
}
function subtitle(msg) {
out.append('p').attr('class', 'subtitle').text(msg);
}
function output(rxtx, msg) {
out.append('p').attr('class', rxtx).text(msg);
}
// invoked only the first time the view is loaded
function preload(view, ctx, flags) {
// NOTE: view.$div is a D3 selection of the view's div
v = view;
$d = v.$div;
addHeader();
addOutput();
// hack for now, to allow topo access to our API
// TODO: add 'exportApi' and 'importApi' to views.
onos.exported.webSockTrace = {
subtitle: subtitle,
output: output
};
}
// invoked just prior to loading the view
function reset(view, ctx, flags) {
}
// invoked when the view is loaded
function load(view, ctx, flags) {
resize(view, ctx, flags);
view.setKeys(keyDispatch);
subtitle('Waiting for messages...');
}
// invoked when the view is resized
function resize(view, ctx, flags) {
var h = view.height();
out.style('height', h + 'px');
}
// == register the view here, with links to lifecycle callbacks
onos.ui.addView('webSockTrace', {
preload: preload,
load: load,
resize: resize
});
}(ONOS));