Inclusión de sentencia if javascript
Publicado por Juan Pablo (2 intervenciones) el 08/09/2016 19:04:47
Hola a todos.
Estoy buscando ayuda en este tema, de incorporar un código javascript para que muestre imágenes desde una sentencia if.
Ejemplo: si "log" es: sacaste los perros? Muestre la imagen de dos perros.
si "log" es: SI. Muestre: otra imagen diferente.
log es el resultado de la selección del nodo que se encuentra en
código html
código prueba.js:
saludos.
Estoy buscando ayuda en este tema, de incorporar un código javascript para que muestre imágenes desde una sentencia if.
Ejemplo: si "log" es: sacaste los perros? Muestre la imagen de dos perros.
si "log" es: SI. Muestre: otra imagen diferente.
log es el resultado de la selección del nodo que se encuentra en
código html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html class="js-available">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="content-language" content="es">
<meta name="viewport" content="width=1000">
<head>
<!-- JIT Library File --><script language="javascript" type="text/javascript" src="jit.js"></script>
<!-- Example File --><script language="javascript" type="text/javascript" src="prueba.js"></script>
</head>
<body onload="init();">
<div id="container">
<div id="center-container">
<div id="infovis"></div>
</div>
<div id="log"></div>
<div id="dat"></div>
</div>
<footer>
</footer>
</body>
</html>
código prueba.js:
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var labelType, useGradients, nativeTextSupport, animate;
(function() {
var ua = navigator.userAgent,
iStuff = ua.match(/iPhone/i) || ua.match(/iPad/i),
typeOfCanvas = typeof HTMLCanvasElement,
nativeCanvasSupport = (typeOfCanvas == 'object' || typeOfCanvas == 'function'),
textSupport = nativeCanvasSupport&& (typeof document.createElement('canvas').getContext('2d').fillText == 'function');
//I'm setting this based on the fact that ExCanvas provides text support for IE//and that as of today iPhone/iPad current text support is lame
labelType = (!nativeCanvasSupport || (textSupport && !iStuff))? 'Native' : 'HTML';
nativeTextSupport = labelType == 'Native';
useGradients = nativeCanvasSupport;
animate = !(iStuff || !nativeCanvasSupport);
})();
var Log = {
elem: false,
write: function(text){
if (!this.elem)
/* this.elem = document.getElementById('dat'); */
this.elem = document.getElementById('log');
this.elem.innerHTML = text;
this.elem.style.left = (500 - this.elem.offsetWidth / 2) + 'px';
}
};
/*var Log = {
elem: false,
write: function(text){
if (!this.elem)
this.elem = document.getElementById('log');
this.elem.innerHTML = text;
this.elem.style.left = (500 - this.elem.offsetWidth / 2) + 'px';
}
}; */
function init(){
//init data
var json = {
id: "node1",
name: "¿SACASTE LOS PERROS?",
data: {},
children: [{
id: "node2",
name: "NO",
data: {},
children: [{
id: "node4",
name: "SACA LOS PERROS",
data: {},
children: []
}]
}, {
id: "node3",
name: "SI",
data: {},
children: [{
id: "node5",
name: "TUS PERROS TE LO AGRADECEN",
data: {},
children: []
}]
}]
};
//end
//init Spacetree
//Create a new ST instance
var st = new $jit.ST({
//id of viz container element
injectInto: 'infovis',
//set duration for the animation
duration: 300,
//set animation transition type
transition: $jit.Trans.Quart.easeInOut,
//set distance between node and its children
levelDistance: 50,
//enable panning
Navigation: {
enable:true,
panning:true
},
//set node and edge styles
//set overridable=true for styling individual
//nodes or edges
Node: {
height: 67,
width: 120,
type: 'rectangle',
color: '#aaa',
overridable: true},
Nodes: {
height: 150,
width: 120,
type: 'rectangle',
color: '#aaa',
overridable: true},
Edge: {
type: 'bezier',
overridable: true},
onBeforeCompute: function(node){
Log.write(node.name);
},
/* onAfterCompute: function(){
Log.write("continue ");
}, *///This method is called on DOM label creation.
//Use this method to add event handlers and styles to
//your node.
onCreateLabel: function(label, node){
label.id = node.id;
label.innerHTML = node.name;
label.onclick = function(){
if(normal.checked) {
st.onClick(node.id);
} else {
st.setRoot(node.id, 'animate');
}};//set label styles
var style = label.style;
style.width = 120 + 'px';
style.height = 50 + 'px';
style.cursor = 'pointer';
style.color = '#333';
style.fontSize = '0.8em';
style.textAlign= 'center';
style.paddingTop = '1px';
},
//This method is called right before plotting
//a node. It's useful for changing an individual node
//style properties before plotting it.
//The data properties prefixed with a dollar
//sign will override the global node style properties.
onBeforePlotNode: function(node){
//add some color to the nodes in the path between the
//root node and the selected node.
if (node.selected) {
node.data.$color = "#ff7";
}
else {
delete node.data.$color;
//if the node belongs to the last plotted level
if(!node.anySubnode("exist")) {
//count children number
var count = 0;
node.eachSubnode(function(n) { count++; });
//assign a node color based on
//how many children it has
node.data.$color = ['#aaa', '#baa', '#caa', '#daa', '#eaa', '#faa'][count];
}}},
//This method is called right before plotting
//an edge. It's useful for changing an individual edge
//style properties before plotting it.
//Edge data proprties prefixed with a dollar sign will
//override the Edge global style properties.
onBeforePlotLine: function(adj){
if (adj.nodeFrom.selected && adj.nodeTo.selected) {
adj.data.$color = "#eed";
adj.data.$lineWidth = 3;
}
else {
delete adj.data.$color;
delete adj.data.$lineWidth;
}
}
});
//load json data
st.loadJSON(json);
//compute node positions and layout
st.compute();
//optional: make a translation of the tree
st.geom.translate(new $jit.Complex(-200, 0), "current");
//emulate a click on the root node.
st.onClick(st.root);
//end
//Add event handlers to switch spacetree orientation.
var top = $jit.id('r-top'),
left = $jit.id('r-left'),
bottom = $jit.id('r-bottom'),
right = $jit.id('r-right'),
normal = $jit.id('s-normal');
function changeHandler() {
if(this.checked) {
top.disabled = bottom.disabled = right.disabled = left.disabled = true;
st.switchPosition(this.value, "animate", {
onComplete: function(){
top.disabled = bottom.disabled = right.disabled = left.disabled = false;
}
});
}
};
top.onchange = left.onchange = bottom.onchange = right.onchange = changeHandler;
//end
}saludos.
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