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WebPanel: Move libraries out of aircraft to common folder

This commit is contained in:
Torsten Dreyer 2014-09-22 20:28:51 +02:00
parent 5f342fdc7c
commit e929b182af
2 changed files with 518 additions and 0 deletions

435
webgui/lib/fgfs.js Normal file
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var FGFS = {};
FGFS.Property = function(path) {
if (path == null)
throw new Error('path is null');
// path must be absolute
if (path.lastIndexOf("/", 0) !== 0)
path = "/".concat(path);
this.path = path.lastIndexOf("/", 0) === 0 ? path : "/".concat(path);
this.value = null;
}
FGFS.Property.prototype.getPath = function() {
return this.path;
}
FGFS.Property.prototype.setValue = function(val) {
// TODO: send this out
this.value = val;
}
FGFS.Property.prototype.hasValue = function() {
return this.value != null;
}
FGFS.Property.prototype.getValue = function(val) {
return this.value;
}
FGFS.Property.prototype.getStringValue = function(val) {
return this.value == null ? null : this.value.toString();
}
FGFS.Property.prototype.getNumValue = function(val) {
var reply = this.value == null ? null : Number(this.value);
return (isNaN(reply) || reply == null) ? 0 : reply;
}
FGFS.PropertyListener = function(arg) {
this._listeners = {};
this._nextId = 1;
this._ws = new WebSocket('ws://' + location.host + '/PropertyListener');
function defaultOnClose(ev) {
var msg = 'Lost connection to FlightGear. Please reload this page and/or restart FlightGear.';
alert(msg);
throw new Error(msg);
}
function defaultOnError(ev) {
var msg = 'Error communicating with FlightGear. Please reload this page and/or restart FlightGear.';
alert(msg);
throw new Error(msg);
}
this._ws.propertyListener = this;
this._ws.onopen = arg.onopen;
this._ws.onclose = defaultOnClose;
this._ws.onerror = defaultOnError;
this._ws.onmessage = function(ev) {
try {
this.propertyListener.fire(JSON.parse(ev.data));
} catch (e) {
}
};
this.fire = function(node) {
this._listeners[node.path].forEach(function(callback) {
callback.cb(node);
});
};
this.addProperty = function(prop, callback) {
var path = prop.getPath();
var o = this._listeners[path];
var newProperty = false;
if (typeof (o) == 'undefined') {
newProperty = true;
o = [];
this._listeners[path] = o;
}
o.push({
cb : callback,
"prop" : prop,
id : this._nextId++
});
if (newProperty) {
this._ws.send(JSON.stringify({
command : 'addListener',
node : path
}));
this._ws.send(JSON.stringify({
command : 'get',
node : path
}));
}
return this._nextId;
};
this.removeProperty = function(prop) {
throw new Error('removeProperty not yet implemented');
};
}
// expects:
// [
// [ "key", "/fg/property/path" ],
// [ "key", "/another/fg/property/path" ],
// ]
FGFS.PropertyMirror = function(mirroredProperties) {
var mirror = {}
for( var i = 0; i < mirroredProperties.length; i++ ) {
var pair = mirroredProperties[i];
mirror[pair[0]] = new FGFS.Property(pair[1]);
}
var listener = new FGFS.PropertyListener({
onopen : function() {
var keys = Object.keys(mirror);
for (var i = 0; i < keys.length; i++) {
listener.addProperty(mirror[keys[i]], function(n) {
if (typeof (n.value) != 'undefined')
this.prop.value = n.value;
});
}
;
},
});
this.listener = listener;
this.mirror = mirror;
this.getNode = function(id) {
return this.mirror[id];
};
// TODO: ugly static variable, change this!
FGFS.NodeProvider.mirror = this;
}
FGFS.interpolate = function(x, pairs) {
var n = pairs.length - 1;
if (x <= pairs[0][0]) {
return pairs[0][1];
}
if (x >= pairs[n][0]) {
return pairs[n][1];
}
for (var i = 0; i < n; i = i + 1) {
if (x > pairs[i][0] && x <= pairs[i + 1][0]) {
var x1 = pairs[i][0];
var x2 = pairs[i + 1][0];
var y1 = pairs[i][1];
var y2 = pairs[i + 1][1];
return (x - x1) / (x2 - x1) * (y2 - y1) + y1;
}
}
return pairs[i][1];
}
FGFS.NodeProvider = {
mirror: null,
getNode: function(id) {
if( this.mirror == null )
throw new Error('no nodes without a mirror');
return this.mirror.getNode(id);
}
}
FGFS.InputValue = function(arg) {
this.__proto__ = FGFS.NodeProvider;
this.value = 0;
this.property = null;
this.offset = 0;
this.scale = 1;
this.interpolationTable = null;
this.min = null;
this.max = null;
this.getValue = function() {
var value = this.value;
if (this.property != null)
value = this.property.getNumValue();
if (this.interpolationTable != null && this.interpolationTable.length > 0)
return FGFS.interpolate(value, this.interpolationTable);
value = value * this.scale + this.offset;
if( this.min != null && value < this.min )
return this.min;
if( this.max != null && value > this.min )
return this.max;
return value;
}
if (typeof (arg) == 'number') {
this.value = Number(arg);
} else if (typeof (arg) == 'string') {
this.property = this.getNode(arg);
} else if (typeof (arg) == 'object') {
if (typeof (arg.property) != 'undefined')
this.property = this.getNode(arg.property);
if (typeof (arg.value) != 'undefined')
this.value = Number(arg.value);
if (typeof (arg.scale) != 'undefined')
this.scale = Number(arg.scale);
if (typeof (arg.offset) != 'undefined')
this.offset = Number(arg.offset);
if (typeof (arg.interpolation == 'string')) {
var target = this;
if (typeof (arg.interpolation) == 'string') {
this.interpolationTable = [];
// load interpolation table
$.ajax({
type : "GET",
dataType : "XML",
url : arg.interpolation,
success : function(data, status, xhr) {
var entries = $(data).find("entry");
$(data).find("entry").each(function() {
var ind = $(this).find("ind").text();
var dep = $(this).find("dep").text();
target.interpolationTable.push([ Number(ind), Number(dep) ]);
});
},
error : function(xhr, status, msg) {
alert(status + " while reading '" + arg.interpolation + "': " + msg.toString());
},
});
}
}
} else {
throw new Error('Dont know how to handle "' + arg.toString() + '"' );
}
}
FGFS.Transform = function(arg) {
}
FGFS.RotateTransform = function(arg) {
this.__proto__ = new FGFS.Transform(arg);
this.a = new FGFS.InputValue(arg.a);
this.x = new FGFS.InputValue(arg.x);
this.y = new FGFS.InputValue(arg.y);
this.makeTransform = function() {
return {
type : "rotate",
props : {
a : this.a.getValue(),
x : this.x.getValue(),
y : this.y.getValue(),
context : this,
}
}
}
}
FGFS.TranslateTransform = function(arg) {
this.__proto__ = new FGFS.Transform(arg);
this.x = new FGFS.InputValue(arg.x);
this.y = new FGFS.InputValue(arg.y);
this.makeTransform = function() {
return {
type : "translate",
props : {
x : this.x.getValue(),
y : this.y.getValue(),
context : this,
}
}
}
}
FGFS.Animation = function(arg) {
this.element = arg.element;
this.type = arg.type;
this.__proto__.update = function(svg) {
var t = typeof (this._element);
if (typeof (this._element) == 'undefined') {
this._element = $(svg).find(this.element);
}
this._element.fgAnimateSVG(this.makeAnimation());
}
this.__proto__.makeAnimation = function() {
return {};
}
}
FGFS.TransformAnimation = function(arg) {
this.__proto__ = new FGFS.Animation(arg);
this.transforms = [];
for (var i = 0; i < arg.transforms.length; i++) {
var t = arg.transforms[i];
var transform = null;
switch (t.type) {
case 'rotate':
transform = new FGFS.RotateTransform(t);
break;
case 'translate':
transform = new FGFS.TranslateTransform(t);
break;
}
if (transform != null)
this.transforms[this.transforms.length] = transform;
}
this.makeAnimation = function() {
var reply = {
type : 'transform',
transforms : [],
};
for (var i = 0; i < this.transforms.length; i++)
reply.transforms[reply.transforms.length] = this.transforms[i].makeTransform();
return reply;
}
}
FGFS.Instrument = function(arg) {
// load svg into target
$.ajax({
type : "GET",
url : arg.src,
async: false,
dataType : "xml",
context: this,
success : function(xml, status, xhr) {
this.svg = $(xml).find("svg")[0];
},
error : function(xhr, status, msg) {
alert(status + " while reading '" + arg.src + "': " + msg.toString());
},
});
this.animations = [];
for (var i = 0; i < arg.animations.length; i++) {
var a = arg.animations[i];
var animation = null;
switch (a.type) {
case 'transform':
animation = new FGFS.TransformAnimation(a);
break;
}
if (animation != null)
this.animations[this.animations.length] = animation;
}
this.__proto__.update = function() {
// noop if svg is not (yet) loaded
if (typeof (this.svg) == 'undefined')
return;
var svg = this.svg;
this.animations.forEach(function(animation) {
animation.update(svg);
});
}
}
FGFS.FGPanel = function( propUrl )
{
var defaultProps = {
instrumentSelector: ".instrument",
instrumentDataKey: "fgpanel-instrument",
updateInterval: 50,
};
this.props = Object.create( defaultProps );
if( typeof(propUrl) == 'string' ) {
$.ajax({
type : "GET",
url : propUrl,
async: false,
dataType : "json",
context: this,
success : function(data, status, xhr) {
data.__proto__ = defaultProps;
this.props = data;
},
error : function(xhr, status, msg) {
alert(status + " while reading '" + propUrl + "': " + msg.toString());
},
});
}
var mirror = new FGFS.PropertyMirror(this.props.propertyMirror);
var instruments = $(this.props.instrumentSelector).fgLoadInstruments(this.props.instrumentDataKey);
window.setInterval( function() {
instruments.forEach(function(instrument) {
instrument.update();
});
}, this.props.updateInterval );
}
$(document).ready(function() {
var hasFGPanel = $("body").data("fgpanel");
if( hasFGPanel ) {
var panelProps = $("body").data("fgpanel-props");
new FGFS.FGPanel( panelProps == null ? "fgpanel.json" : panelProps );
}
});

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(function($) {
function makeTranslate(a) {
return makeTransform("translate", a);
}
function makeRotate(a) {
return makeTransform("rotate", a);
}
function makeTransform( type, a ) {
var t = type.concat("(");
if( a != null ) {
a.forEach( function(ele) {
t = t.concat(ele).concat(" ");
});
}
return t.concat(") ");
}
function evaluate( context,exp ) {
if( typeof(exp) == 'function' )
return exp.call(context);
return exp;
}
$.fn.fgAnimateSVG = function(props) {
if (props) {
if (props.type == "transform" && props.transforms) {
var a = "";
props.transforms.forEach(function(transform) {
switch (transform.type) {
case "rotate":
a = a.concat(makeRotate([
evaluate(transform.props.context,transform.props.a),
evaluate(transform.props.context,transform.props.x),
evaluate(transform.props.context,transform.props.y) ]));
break;
case "translate":
a = a.concat(makeTranslate([
evaluate(transform.props.context,transform.props.x),
evaluate(transform.props.context,transform.props.y) ]));
break;
}
});
this.attr("transform", a);
} else if( props.type == "text" ) {
var tspans = this.children("tspan");
if( 0 == tspans.length ) {
this.text(props.text);
} else {
tspans.text(props.text);
}
}
}
return this;
};
$.fn.fgLoadInstruments = function( dataTag ) {
var reply = [];
this.each(function() {
var instrumentDefinitionFile = $(this).data(dataTag);
$.ajax({
type: "GET",
url: instrumentDefinitionFile,
context: this,
async: false,
success: function (data,status,xhr) {
var i = new FGFS.Instrument(data);
reply.push(i);
$(this).append(i.svg);
},
error: function(xhr,status,msg) {
alert(status + " while reading '" + instrumentDefinitionFile + "': " + msg.toString() );
},
});
});
return reply;
}
}(jQuery));