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