vzlogger/htdocs/frontend/javascripts/wui.js
2011-07-03 15:48:07 +02:00

485 lines
12 KiB
JavaScript

/**
* Javascript functions for the frontend
*
* @author Florian Ziegler <fz@f10-home.de>
* @author Justin Otherguy <justin@justinotherguy.org>
* @author Steffen Vogel <info@steffenvogel.de>
* @copyright Copyright (c) 2011, The volkszaehler.org project
* @package default
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*/
/*
* This file is part of volkzaehler.org
*
* volkzaehler.org is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or any later version.
*
* volkzaehler.org is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* volkszaehler.org. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Initialize the WUI (Web User Interface)
*/
vz.wui.init = function() {
vz.options.tuples = Math.round($('#flot').width() / 3);
// initialize dropdown accordion
$('#accordion h3').click(function() {
$(this).next().toggle('fast');
return false;
}).next().hide();
$('#entity-list').show(); // open entity list by default
// buttons
$('button, input[type=button],[type=image],[type=submit]').button();
$('button[name=options-save]').click(vz.options.saveCookies);
$('button[name=entity-add]').click(this.dialogs.init);
$('#permalink').click(function() { window.location = vz.wui.getPermalink(); });
$('#snapshot').click(function() { window.location = vz.wui.getSnaplink(); }).hide();
// bind plot actions
$('#controls button').click(this.handleControls);
$('#controls').buttonset();
// auto refresh
if (vz.options.refresh) {
$('#refresh').attr('checked', true);
vz.wui.setTimeout();
}
$('#refresh').change(function() {
if (vz.options.refresh = $(this).attr('checked')) {
vz.wui.refresh(); // refresh once
vz.wui.setTimeout();
} else {
vz.wui.clearTimeout();
}
});
// plot rendering
$('#render-lines').attr('checked', (vz.options.render == 'lines'));
$('#render-points').attr('checked', (vz.options.render == 'points'));
$('input[name=render][type=radio]').change(function() {
if ($(this).attr('checked')) {
vz.options.render = $(this).val();
vz.wui.drawPlot();
}
});
};
/**
* Initialize dialogs
*/
vz.wui.dialogs.init = function() {
// initialize dialogs
$('#entity-add.dialog').dialog({
title: 'Kanal hinzuf&uuml;gen',
width: 530,
resizable: false
});
$('#entity-add.dialog > div').tabs();
// load public entities
vz.load({
controller: 'entity',
success: function(json) {
if (json.entities.length > 0) {
json.entities.each(function(index, json) {
var entity = new Entity(json);
$('#entity-public-entity').append(
$('<option>').html(entity.title).val(entity.uuid).data('entity', entity)
);
});
}
}
});
// show available entity types
vz.capabilities.definitions.entities.each(function(index, def) {
$('#entity-create select[name=type]').append(
$('<option>').html(def.translation[vz.options.language]).data('definition', def).val(def.name)
);
});
$('#entity-create option[value=power]').attr('selected', 'selected');
// set defaults
$('#entity-subscribe-middleware').val(vz.middleware[0].url);
$('#entity-public-middleware').append($('<option>').val(vz.middleware[0].url).text('Local (default)'));
$('#entity-create-middleware').val(vz.middleware[0].url);
$('#entity-subscribe-cookie').attr('checked', 'checked');
$('#entity-public-cookie').attr('checked', 'checked');
// actions
$('#entity-subscribe input[type=button]').click(function() {
try {
var entity = new Entity({
uuid: $('#entity-subscribe-uuid').val(),
cookie: Boolean($('#entity-subscribe-cookie').attr('checked'))
});
if (middleware = $('#entity-subscribe-middleware').val()) {
entity.middleware = middleware;
}
entity.loadDetails().done(function() {
vz.entities.push(entity);
vz.entities.saveCookie();
vz.entities.showTable();
vz.entities.loadData().done(vz.wui.drawPlot);
}); // reload entity details and load data
}
catch (e) {
vz.wui.dialogs.exception(e);
}
finally {
$('#entity-add').dialog('close');
}
});
$('#entity-public input[type=button]').click(function() {
var entity = $('#entity-public-entity option:selected').data('entity');
try {
entity.cookie = Boolean($('#entity-public-cookie').attr('checked'));
vz.entities.push(entity);
vz.entities.saveCookie();
vz.entities.showTable();
vz.entities.loadData().done(vz.wui.drawPlot);
}
catch (e) {
vz.wui.dialogs.exception(e);
}
finally {
$('#entity-add').dialog('close');
}
});
$('#entity-create form').submit(function() {
$(this).attr('action', $('#entity-create-middlware').val() + '/channel.json');
$('#entity-add').dialog('close');
});
// update event handler
$('button[name=entity-add]').unbind('click', this.init);
$('button[name=entity-add]').click(function() {
$('#entity-add.dialog').dialog('open');
});
};
/**
* Build link to current viewport
*
* @return string url
*/
vz.wui.getPermalink = function() {
var uuids = new Array;
vz.entities.each(function(entity, parent) {
if (entity.active && entity.definition.model == 'Volkszaehler\\Model\\Channel') {
uuids.push(entity.uuid);
}
}, true); // recursive!
var params = $.param({
from: Math.floor(vz.options.plot.xaxis.min),
to: Math.ceil(vz.options.plot.xaxis.max),
uuid: uuids.unique()
});
return window.location.protocol + '//' + window.location.host + window.location.pathname + '?' + params;
}
/**
* Build link to rendered image of current viewport
*
* @return string url
*/
vz.wui.getSnaplink = function() {
var uuids = new Array;
vz.entities.each(function(entity, parent) {
if (entity.active) {
uuids.push(entity.uuid);
}
}, true); // recursive!
return vz.options.middlewareUrl + '/data/' + uuids[0] + '.png?' + $.param({
from: Math.floor(vz.options.plot.xaxis.min),
to: Math.ceil(vz.options.plot.xaxis.max)
});
}
vz.wui.zoom = function(from, to) {
vz.options.plot.xaxis.min = from;
vz.options.plot.xaxis.max = to;
// we dont want to zoom/pan into the future
if (vz.options.plot.xaxis.max > new Date().getTime()) {
var delta = vz.options.plot.xaxis.max - vz.options.plot.xaxis.min;
vz.options.plot.xaxis.max = new Date().getTime();
vz.options.plot.xaxis.min = new Date().getTime() - delta;
}
vz.options.plot.yaxis.max = null; // autoscaling
vz.options.plot.yaxis.min = 0; // fixed to 0
vz.entities.loadData().done(vz.wui.drawPlot);
}
/**
* Bind events to handle plot zooming & panning
*/
vz.wui.initEvents = function() {
$('#plot')
.bind("plotselected", function (event, ranges) {
vz.wui.zoom(ranges.xaxis.from, ranges.xaxis.to);
})
/*.bind('plotpan', function (event, plot) {
var axes = plot.getAxes();
vz.options.plot.xaxis.min = axes.xaxis.min;
vz.options.plot.xaxis.max = axes.xaxis.max;
vz.options.plot.yaxis.min = axes.yaxis.min;
vz.options.plot.yaxis.max = axes.yaxis.max;
})
.bind('mouseup', function(event) {
vz.entities.loadData().done(vz.wui.drawPlot);
})
.bind('plotzoom', function (event, plot) {
var axes = plot.getAxes();
vz.options.plot.xaxis.min = axes.xaxis.min;
vz.options.plot.xaxis.max = axes.xaxis.max;
vz.options.plot.yaxis.min = axes.yaxis.min;
vz.options.plot.yaxis.max = axes.yaxis.max;
vz.entities.loadData().done(vz.wui.drawPlot);
});*/
};
/**
* Move & zoom in the plotting area
*/
vz.wui.handleControls = function () {
var delta = vz.options.plot.xaxis.max - vz.options.plot.xaxis.min;
var middle = vz.options.plot.xaxis.min + delta/2;
switch($(this).val()) {
case 'move-last':
vz.wui.zoom(
new Date().getTime() - delta,
new Date().getTime()
);
break;
case 'move-back':
vz.wui.zoom(
vz.options.plot.xaxis.min - delta,
vz.options.plot.xaxis.max - delta
);
break;
case 'move-forward':
vz.wui.zoom(
vz.options.plot.xaxis.min + delta,
vz.options.plot.xaxis.max + delta
);
break;
case 'zoom-reset':
vz.wui.zoom(
middle - vz.options.defaultInterval/2,
middle + vz.options.defaultInterval/2
);
break;
case 'zoom-in':
vz.wui.zoom(
middle - delta/4,
middle + delta/4
);
break;
case 'zoom-out':
vz.wui.zoom(
middle - delta,
middle + delta
);
break;
case 'zoom-hour':
hour = 60*60*1000;
vz.wui.zoom(
middle - hour/2,
middle + hour/2
);
break;
case 'zoom-day':
var day = 24*60*60*1000;
vz.wui.zoom(
middle - day/2,
middle + day/2
);
break;
case 'zoom-week':
var week = 7*24*60*60*1000;
vz.wui.zoom(
middle - week/2,
middle + week/2
);
break;
case 'zoom-month':
var month = 30*24*60*60*1000;
vz.wui.zoom(
middle - month/2,
middle + month/2
);
break;
case 'zoom-year':
var year = 365*24*60*60*1000;
vz.wui.zoom(
middle - year/2,
middle + year/2
);
break;
}
};
/**
* Refresh plot with new data
*/
vz.wui.refresh = function() {
var delta = vz.options.plot.xaxis.max - vz.options.plot.xaxis.min;
vz.wui.zoom( // move plot
new Date().getTime() - delta,
new Date().getTime()
);
};
/**
* Refresh graphs after timeout ms, with a minimum of vz.options.minTimeout ms
*/
vz.wui.setTimeout = function() {
// clear an already set timeout
if (vz.wui.timeout != null) {
window.clearTimeout(vz.wui.timeout);
vz.wui.timeout = null;
}
var t = Math.max((vz.options.plot.xaxis.max - vz.options.plot.xaxis.min) / vz.options.tuples, vz.options.minTimeout);
vz.wui.timeout = window.setTimeout(vz.wui.refresh, t);
$('#refresh-time').html('(' + Math.round(t / 1000) + ' s)');
}
/**
* Stop auto-refresh of graphs
*/
vz.wui.clearTimeout = function(text) {
$('#refresh-time').html(text || '');
var rc = window.clearTimeout(vz.wui.timeout);
vz.wui.timeout = null;
return rc;
}
/**
* Rounding precision
*
* Math.round rounds to whole numbers
* to round to one decimal (e.g. 15.2) we multiply by 10,
* round and reverse the multiplication again
* therefore "vz.options.precision" needs
* to be set to 1 (for 1 decimal) in that case
*/
vz.wui.formatNumber = function(number, prefix) {
var siPrefixes = ['k', 'M', 'G', 'T'];
var siIndex = 0;
while (prefix && number > 1000 && siIndex < siPrefixes.length-1) {
number /= 1000;
siIndex++;
}
number = Math.round(number * Math.pow(10, vz.options.precision)) / Math.pow(10, vz.options.precision); // rounding
if (prefix) {
number += (siIndex > 0) ? ' ' + siPrefixes[siIndex-1] : ' ';
}
return number;
}
vz.wui.updateHeadline = function() {
var from = $.plot.formatDate(new Date(vz.options.plot.xaxis.min), '%d. %b %y %h:%M', vz.options.plot.xaxis.monthNames);
var to = $.plot.formatDate(new Date(vz.options.plot.xaxis.max), '%d. %b %y %h:%M', vz.options.plot.xaxis.monthNames);
$('#title').html(from + ' - ' + to);
}
/**
* Draws plot to container
*/
vz.wui.drawPlot = function () {
vz.wui.updateHeadline();
var series = new Array;
vz.entities.each(function(entity) {
if (entity.active && entity.data && entity.data.tuples && entity.data.tuples.length > 0) {
var serie = {
data: entity.data.tuples,
color: entity.color,
lines: {
show: (vz.options.render == 'lines'),
steps: (entity.definition.interpreter == 'Volkszaehler\\Interpreter\\MeterInterpreter')
},
points: { show: (vz.options.render == 'points') }
};
series.push(serie);
}
}, true); // recursive!
if (series.length == 0) {
$('#overlay').html('<img src="images/empty.png" alt="no data..." /><p>nothing to plot...</p>');
series.push({}); // add empty dataset to show axes
}
else {
$('#overlay').empty();
}
vz.plot = $.plot($('#flot'), series, vz.options.plot);
// disable automatic refresh if we are in past
if (vz.options.refresh && vz.options.plot.xaxis.max < new Date().getTime() - 1000) {
vz.wui.clearTimeout('(suspended)');
}
else if (vz.options.refresh) {
vz.wui.setTimeout();
}
};
/*
* Error & Exception handling
*/
vz.wui.dialogs.error = function(error, description, code) {
if (code !== undefined) {
error = code + ': ' + error;
}
$('<div>')
.append($('<span>').html(description))
.dialog({
title: error,
width: 450,
dialogClass: 'ui-error',
resizable: false,
modal: true,
buttons: {
Ok: function() {
$(this).dialog('close');
}
}
});
};
vz.wui.dialogs.exception = function(exception) {
this.error(exception.type, exception.message, exception.code);
};