400 lines
9.9 KiB
JavaScript
400 lines
9.9 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) 2010, 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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* Frontend related functions
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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.initInterface = function() {
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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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// make buttons fancy
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$('button, input[type=button]').button();
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$('#backendUrl').val(vz.options.backendUrl).change(function() {
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vz.options.backendUrl = $(this).val();
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});
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// tuple resolution
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$('#tuples').val(vz.options.tuples).change(function() {
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vz.options.tuples = $(this).val();
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vz.entities.loadData();
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});
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// plot rendering
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$('#rendering_lines')
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.attr('checked', vz.options.plot.series.lines.show)
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.change(function() {
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vz.options.plot.series.lines.show = $(this).attr('checked');
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vz.options.plot.series.points.show = !$(this).attr('checked');
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vz.drawPlot();
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});
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$('#rendering_points')
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.attr('checked', vz.options.plot.series.points.show)
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.change(function() {
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vz.options.plot.series.lines.show = !$(this).attr('checked');
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vz.options.plot.series.points.show = $(this).attr('checked');
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vz.drawPlot();
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});
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$('#timespan input').datepicker();
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};
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/**
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* Initialize dialogs
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*/
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vz.initDialogs = function() {
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// initialize dialogs
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$('#addUUID').dialog({
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autoOpen: false,
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title: 'UUID hinzufügen',
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width: 450,
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resizable: false
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});
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$('#newEntity').dialog({
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autoOpen: false,
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title: 'Entity erstellen',
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width: 400
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});
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// open uuid dialog
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$('button[name=addUUID]').click(function() {
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$('#addUUID').dialog('open');
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});
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// open entity dialog
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$('button[name=newEntity]').click(function() {
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$('#newEntity').dialog('open');
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});
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// add UUID
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$('#addUUID input[type=button]').click(function() {
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try {
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vz.uuids.add($('#addUUID input[type=text]').val());
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$('#addUUID input[type=text]').val('');
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$('#addUUID').dialog('close');
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vz.entities.loadDetails();
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}
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catch (exception) {
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vz.exceptionDialog(exception);
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}
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});
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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.bindEvents = function() {
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// bind plot actions
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$('#move input[type=image]').click(vz.handleControls);
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$('#plot')
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.bind("plotselected", function (event, ranges) {
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vz.options.plot.xaxis.min = ranges.xaxis.from;
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vz.options.plot.xaxis.max = ranges.xaxis.to;
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vz.options.plot.yaxis.min = 0;
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vz.options.plot.yaxis.max = null; // autoscaling
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vz.entities.loadData();
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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();
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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();
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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.refresh = function() {
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if ($('#refresh').attr('checked')) {
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var delta = vz.options.plot.xaxis.min - vz.options.plot.xaxis.max;
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vz.options.plot.xaxis.max = new Date().getTime(); // move plot
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vz.options.plot.xaxis.min = vz.options.plot.xaxis.max - delta; // move plot
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vz.entities.loadData();
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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.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.value) {
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case 'move_last':
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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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break;
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case 'move_back':
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vz.options.plot.xaxis.min -= delta;
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vz.options.plot.xaxis.max -= delta;
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break;
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case 'move_forward':
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vz.options.plot.xaxis.min += delta;
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vz.options.plot.xaxis.max += delta;
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break;
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case 'zoom_reset':
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vz.options.plot.xaxis.min = middle - defaultInterval/2;
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vz.options.plot.xaxis.max = middle + defaultInterval/2;
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break;
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case 'zoom_in':
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vz.options.plot.xaxis.min += delta/4;
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vz.options.plot.xaxis.max -= delta/4;
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break;
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case 'zoom_out':
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vz.options.plot.xaxis.min -= delta;
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vz.options.plot.xaxis.max += delta;
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break;
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}
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// update delta after zoom
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delta = vz.options.plot.xaxis.max - vz.options.plot.xaxis.min;
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// we dont want to zoom/pan into the future
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if (vz.options.plot.xaxis.max + delta > new Date().getTime()) {
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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.entities.loadData();
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};
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/**
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* Get all entity information from backend
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*/
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vz.entities.loadDetails = function() {
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vz.entities.clear();
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vz.uuids.each(function(index, value) {
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vz.load('entity', value, {}, waitAsync(function(json) {
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if (json.exception) {
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alert(exception.message);
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return false;
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}
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vz.entities.push(new Entity(json.entity));
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}, vz.entities.show, 'information'));
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});
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};
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/**
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* Create nested entity list
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* @param data
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*/
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vz.entities.show = function() {
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$('#entities tbody').empty();
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var i = 0;
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vz.entities.each(function(entity, parent) {
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entity.color = vz.options.plot.colors[i++ % vz.options.plot.colors.length];
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entity.active = (entity.active) ? entity.active : true;
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var row = $('<tr>')
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.addClass((parent) ? 'child-of-entity-' + parent.uuid : '')
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.attr('id', 'entity-' + entity.uuid)
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.append($('<td>')
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.css('background-color', entity.color)
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.css('width', 19)
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.append($('<input>')
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.attr('type', 'checkbox')
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.attr('checked', entity.active)
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.bind('change', entity, function(event) {
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event.data.active = $(this).attr('checked');
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vz.drawPlot();
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})
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)
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)
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.append($('<td>')
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.css('width', 20)
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)
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.append($('<td>')
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.append($('<span>')
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.text(entity.title)
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.addClass('indicator')
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.addClass((entity.type == 'group') ? 'group' : 'channel')
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)
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)
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.append($('<td>').text(entity.type))
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.append($('<td>')) // min
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.append($('<td>')) // max
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.append($('<td>')) // avg
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.append($('<td>') // operations
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.addClass('ops')
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/*.append($('<input>')
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.attr('type', 'image')
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.attr('src', 'images/information.png')
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.attr('alt', 'details')
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.bind('click', entity, function(event) { event.data.showDetails(); })
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)*/
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);
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if (parent == null) {
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$('td.ops', row).prepend($('<input>')
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.attr('type', 'image')
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.attr('src', 'images/delete.png')
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.attr('alt', 'delete')
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.bind('click', entity, function(event) {
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vz.uuids.remove(event.data.uuid);
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vz.entities.loadDetails();
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})
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);
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}
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$('#entities tbody').append(row);
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});
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// http://ludo.cubicphuse.nl/jquery-plugins/treeTable/doc/index.html
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$('#entities table').treeTable({
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treeColumn: 2,
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clickableNodeNames: true
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});
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// load data and show plot
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vz.entities.loadData();
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};
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/**
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* Overwritten each iterator for entity array
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*/
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vz.entities.each = function(cb) {
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for (var i = 0; i < vz.entities.length; i++) {
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vz.entities[i].each(cb);
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}
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}
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/**
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* Load json data from the backend
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*/
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vz.entities.loadData = function() {
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$('#plot').html('<div class="plotcenter"><img src="images/loading.gif" alt="loading..." /><p>Loading...</p></div>');
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vz.entities.each(function(entity, parent) {
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if (entity.active && entity.type != 'group') {
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vz.load('data', entity.uuid,
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{
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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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tuples: vz.options.tuples
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},
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waitAsync(function(json) {
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entity.data = json.data;
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}, vz.drawPlot, 'data')
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);
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}
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});
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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.drawPlot = function () {
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var data = new Array;
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vz.entities.each(function(entity, parent) {
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if (entity.active && entity.data && entity.data.count > 0) {
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data.push({
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data: entity.data.tuples,
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color: entity.color
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});
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}
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});
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if (data.length > 0) {
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vz.plot = $.plot($('#plot'), data, vz.options.plot);
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}
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else {
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$('#plot').html('<div class="plotcenter"><img src="images/empty.png" alt="no data..." /><p>Nothing to plot...</p></div>');
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}
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};
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vz.load = function(context, identifier, data, success) {
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$.ajax({
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success: success,
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url: vz.options.backendUrl + '/' + context + '/' + identifier + '.json',
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dataType: 'json',
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data: data,
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error: function(xhr) {
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json = JSON.parse(xhr.responseText);
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vz.errorDialog(xhr.statusText, json.exception.message, xhr.status);
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}
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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.errorDialog = function(error, description, code) {
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if (typeof code != undefined) {
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error = code + ': ' + error;
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}
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$('<div>')
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.addClass('error')
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.append($('<span>').text(description))
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.dialog({
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title: error,
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width: 450
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});
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};
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vz.exceptionDialog = function(exception) {
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vz.errorDialog(exception.type, exception.message, exception.code);
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};
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var Exception(type, message, code) {
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return {
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type: type,
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message: message,
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code: code
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};
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}
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