Let's say I have the following code
var $variable = $('<li/>', {
tabindex: 0,
click: function() {
//more code in here
}
}
is it possible to define the click: with a variable? Baring in mind it is already inside a variable and will also include an if statement, like so:
if(condition) {
var functiontype = 'click';
}
else {
var functiontype = 'hover';
}
var $variable = $('<li/>', {
tabindex: 0,
functiontype: function() {
//more code in here
}
}
I tried doing this but it didn't work. Can someone please point me in the right direction?
if(condition) {
var functiontype = 'click';
}
else {
var functiontype = 'hover';
}
var options = {};
options["tabindex"] = 0;
options[functiontype] = function(){
// your code
}
var $variable = $('<li/>', options);
You may do the reverse :
var $variable = $('<li/>', {
tabindex: 0
};
$variable[condition?'click':'hover'] = function(){
// the code here
}
Related
I have multiple YouTube players on a single page inside a banner slider and I want to use the YouTube Player API to control them and do other stuff based on the state of the video's. I have the code below which I'm pretty sure of used to work fine where any state changes where registered. But it doesnt work for me anymore. The YouTube object is still there and I can use it to start and stop a video but the onStateChange event never gets triggered. What is wrong with this code?
var YT_ready = (function() {
var onReady_funcs = [],
api_isReady = false;
return function(func, b_before) {
if (func === true) {
api_isReady = true;
for (var i = 0; i < onReady_funcs.length; i++) {
onReady_funcs.shift()();
}
}
else if (typeof func == "function") {
if (api_isReady) func();
else onReady_funcs[b_before ? "unshift" : "push"](func);
}
}
})();
function onYouTubePlayerAPIReady() {
YT_ready(true);
}
var players_homepage = {};
YT_ready(function() {
$("li.video iframe.youtube").each(function(event) {
var frameID_homepage = $(this).attr('id');
if (frameID_homepage) {
players_homepage[frameID_homepage] = new YT.Player(frameID_homepage, {
events: {
'onStateChange': onPlayerStateChange_homepage
}
});
}
});
});
(function(){
var tag = document.createElement('script');
tag.src = "//www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
})();
function onPlayerStateChange_homepage(event) {
if (event.data === 0) {
// do something on end
} else if (event.data === 1) {
// do something on play
} else if (event.data === 2) {
// do something on pause
}
}
function pauseVideo_homepage(previousVideo) {
players_homepage[previousVideo].pauseVideo();
}
function playVideo_homepage(currentVideo) {
players_homepage[currentVideo].playVideo();
}
I'm making a game where the player must avoid random falling objects. I dont know how to implement pausing. I've been stuck on this for 2 days!
I tried using gotoAndPlay and such, but the objects continue to run in the background. When I resume the game, they're still falling and it seems like the frame resets and loads new random falling objects.
var steps:Number = 10;
var spriteX:Number = 280;
var spriteY:Number = 650;
var alienCounter=1;
var asteroidCounter=1;
var live:Number=3;
var depthLevel=3000;
var score:Number = 0;
var gamePaused;
dropTimer=setInterval(createAlien,2000);
drpTimer2=setInterval(createAsteroid,1000);
//---- functions ----
function checkKeys()
{
if (Key.isDown(Key.RIGHT))
{
spriteX += steps;
}
else if (Key.isDown(Key.LEFT))
{
spriteX -= steps;
}
}
function updateSpaceship()
{
ship._x = spriteX;
ship._y = spriteY;
}
function createAlien()
{
var curr_alien;
curr_alien=attachMovie("alien","alien"+alienCounter,depthLevel);
curr_alien._y=40;
curr_alien._x=Math.random()*510+20;
curr_alien._xscale=curr_alien._yscale=50;
curr_alien.speed=Math.random()*10+3;
alienCounter+=1;
depthLevel+=1;
curr_alien.onEnterFrame=alienMove;
}
function alienMove()
{
if(!gamePaused)
{
this._y+=this.speed;
if(this.hitTest(ship))
{
score += 1;
trace(score);
removeMovieClip(this);
}
}
}
function createAsteroid()
{
var curr_asteroid;
curr_asteroid=attachMovie("asteroid","asteroid"+asteroidCounter,depthLevel);
curr_asteroid._y=40;
curr_asteroid._x=Math.random()*510+20;
curr_asteroid._xscale=curr_asteroid._yscale=50;
curr_asteroid.speed=Math.random()*10+3;
asteroidCounter+=1;
depthLevel+=1;
curr_asteroid.onEnterFrame=asteroidMove;
}
function asteroidMove()
{
if(!gamePaused)
{
this._y+=this.speed;
if(this.hitTest(ship))
{
live -= 1;
trace(live);
removeMovieClip(this);
if(live<=0)
{
gotoAndPlay(5);
}
}
}
}
this.onEnterFrame = function()
{
checkKeys();
updateSpaceship();
if(Key.isDown(80))
{
if(!gamePaused)
{
gamePaused=true;
gotoAndPlay(4);
}
else
{
gamePaused=false;
gotoAndStop(3);
}
}
};
i decided to use a key instead because i cannot find any solutions when trying to use a button. The pause function is not working as i expected, i need to enter key 'p' several times to pause it, but i dont want the frame resets and loads more random objects when i resume it.
try this:
remove your:
this.onEnterFrame = function()
{
checkKeys();
updateSpaceship();
if(Key.getCode() == 80)
{
if(!gamePaused)
{
gamePaused=true;
gotoAndPlay(4);
trace("AAA")
}
else
{
gamePaused=false;
gotoAndStop(3);
trace("BBB")
}
}
};
Add this (pause by pressing the 'P' key on your keyboard):
var keyListener:Object = new Object();
keyListener.onKeyUp = function() {
if(Key.getCode() == 80) {
gamePaused = !gamePaused;
mainLoop();
}
};
Key.addListener(keyListener);
function mainLoop() {
if (gamePaused) {
gotoAndStop(4); // update game actions here
trace("game is paused");
return;
}
gotoAndStop(3); // update game actions here
trace("game is running");
}
Alternatively if you need to pause using a button:
my_pause_Button.onRelease = function() { // your button instance name 'my_pause_Button'
gamePaused = !gamePaused;
mainLoop();
};
Put this in your button function or keydown function:
stage.frameRate = 0.01;
Is there a simpler way to write something like this in dojo (instead of having a function for each thing i want to show or hide)? I know there must be a way to avoid such repetition but I'm not sure how to do it.
on(dom.byId("thing_toggle2"), "click", function(){
if(thing_list2.style.display == "none") {
thing_list2.style.display = "block";
dom.byId("toggle2_sign").innerHTML = "(-)";
} else {
thing_list2.style.display = "none";
dom.byId("toggle2_sign").innerHTML = "(+)";
};
});
on(dom.byId("thing_toggle3"), "click", function(){
if(thing_list3.style.display == "none") {
thing_list3.style.display = "block";
dom.byId("toggle3_sign").innerHTML = "(-)";
} else {
thing_list3.style.display = "none";
dom.byId("toggle3_sign").innerHTML = "(+)";
};
});
I didn't test this, but it should give you a starting point. Adding an additional section, would just involve adding to the array of data.
var fnToggle = function(nodeMap) {
var expand = domStyle.get(dom.byId(nodeMap.contentNode), 'display') == 'none';
domStyle.set(dom.byId(nodeMap.contentNode), 'display', expand ? 'block' : '');
html.set(dom.byId(nodeMap.expandoNode), expand ? '+' : '-');
};
var nodes = [
{ eventNode: 'thing_toggle2', contentNode: thing_list2, expandoNode: 'toggle2_sign' },
{ eventNode: 'thing_toggle3', contentNode: thing_list3, expandoNode: 'toggle3_sign' }
];
array.forEach(nodes, function(nodeMap) {
on(dom.byId(nodeMap.eventNode), "click", function(){ fnToggle(nodeMap); });
});
// domStyle -> dojo/dom-style
// html -> dojo/html
// array -> dojo/_base/array
You could use dojo/fx/Toggler which uses dojo/_base/fx.fadeOut and dojo/_base/fx.fadeIn
I actually decided to do this as a plain old javascript function which I can reuse elsewhere, including pages that might not need dojo. Something like this:
[1]
[2]
<div id="myName" style="display:none;">Antonio</div>
<div id="anothername" style="display:none;">Elliot</div>
<script type="text/javascript">
function showlayer(layer){
var myLayer = document.getElementById(layer).style.display;
if(myLayer=="none"){
document.getElementById(layer).style.display="block";
} else {
document.getElementById(layer).style.display="none";
};
}
</script>
I have made up the custom module as :
YUI.add('util', function(Y) {
Y.namespace('com.myCompany');
var NS = Y.com.myCompany;
NS.val = undefined;
}, '3.3.0', {
requires : []
});
What I am trying to do is share this variable val in the instances where I use this module "util". As in
YUI().use("util","node","event",function (Y) {
Y.namespace('com.myCompany');
var MV = Y.com.myCompany;
var setVal = function(e){
MV.val = 10;
}
Y.on("click", setVal,"#one");
});
Now if I want to get this in other instance I am doing as the following:
YUI().use("util","node","event",function (Y) {
Y.namespace('com.myCompany');
var MV = Y.com.myCompany;
var getVal = function(e){
alert(MV.val);
}
Y.on("click", getVal,"#two");
});
But this does not seem to be working. Is there a way to get this behavior. I am doing this only to split up the code.
In this case, you should only create one sandbox. The correct way to break up your code is to use YUI.add to create the modules and specify their dependencies. One way to do this is to structure your code as follows:
// util.js
YUI.add('util', function (Y) {
var NS = Y.namespace('com.MyCompany');
NS.val = null;
}, 'version', {
requires: ['some', 'dependencies']
});
// one.js
YUI.add('one', function (Y) {
var NS = Y.namespace('com.MyCompany');
Y.on('click', function (e) { NS.val = 23; }, '#one');
}, 'version', {
requires: ['util']
});
// two.js
YUI.add('two', function (Y) {
var NS = Y.namespace('com.MyCompany');
Y.on('click', function (e) { alert(NS.val); }, '#two');
}, 'version', {
requires: ['util']
});
// index.html
<button id="one">Set the value</button>
<button id="two">Get the value</button>
<script>
YUI.use('one, 'two', 'node', 'event', function (Y) {
// main application logic here
});
</script>
This allows you to break up your code into separate modules that share the same YUI sandbox instance.
Note also YUI.namespace returns the namespace in question, so you don't need the extra variables.
The problem is that YUI() is creating a new sandbox with each execution. If you want to reuse it you need to capture its value after the first "use" execution and reuse that value later. There may be a better YUish way to do this but I use a global YUI_MAIN:
var YUI_MAIN = YUI().use("util","node","event",function (Y) {
Y.namespace('com.myCompany');
var MV = Y.com.myCompany;
var setVal = function(e){
MV.val = 10;
};
Y.on("click", setVal,"#one");
});
YUI_MAIN.use(function (Y) {
Y.namespace('com.myCompany');
var MV = Y.com.myCompany;
var getVal = function(e){
alert(MV.val);
};
Y.on("click", getVal,"#two");
});
If you really wanted to share between separate sandboxes and avoid an extra global you could use a closure to create a private variable with something like this:
YUI.add('util', (function () {
var privateUtilNS = {};
return function(Y) {
privateUtilNS['val'] = undefined;
Y.setVal = function(e){
privateUtilNS.val = 10;
};
Y.getVal = function(e){
alert(privateUtilNS.val);
};
};
}()), '3.3.0', {
requires : []
});
YUI().use("util","node","event",function (Y) {
Y.on("click", Y.setVal,"#one");
});
YUI().use("util","node","event",function (Y) {
Y.on("click", Y.getVal,"#two");
});
For some reason in IE8 when I run this function after an onclick event it causes a page refresh. I don't wan the page refresh to happen.
var edealsButton = dojo.byId("edeals_button");
var edealEmailInput = dojo.byId("edeals_email");
var edealsSignup = dojo.byId("edeals_signup");
var edealsThankYou = dojo.byId("edeals_thankyou");
var currentValue = dojo.attr(edealEmailInput, 'value');
if (currentValue != '' && currentValue != 'Enter your email') {
var anim = dojox.fx.flip({
node: edealsSignup,
dir: "right",
duration: 300
})
dojo.connect(anim, "onEnd", this, function() {
edealsSignup.style.display = "none";
edealsThankYou.style.display = "block";
})
dojo.connect(anim, "onBegin", this, function() {
var criteria = { "emailAddress": '"' + currentValue + '"' };
alert("currentValue " + currentValue);
var d = essentials.CallWebserviceMethod('AlmondForms.asmx/SignupEdeal', criteria);
d.addCallback(function(response) {
var obj = dojo.fromJson(response);
alert(obj.d);
if (obj != null && obj.d != null) {
//alert(obj.d);
if (obj.d == false)
{
var edealSuccess = dojo.byId("edeals_succes_thankyou");
var edealError = dojo.byId("edeals_error_thankyou");
alert("edealError: " + edealError);
dojo.style(edealSuccess, "display", "none");
dojo.style(edealError, "display", "inline-block");
}
else
{
var edealSuccess = dojo.byId("edeals_succes_thankyou");
var edealError = dojo.byId("edeals_error_thankyou");
dojo.style(edealSuccess, "display","inline-block");
dojo.style(edealError, "display", "none");
}
}
else {
var edealSuccess = dojo.byId("edeals_succes_thankyou");
var edealError = dojo.byId("edeals_error_thankyou");
dojo.style(edealSuccess, "display", "none");
dojo.style(edealError, "display", "inline-block");
}
});
})
anim.play();
edealEmailInput.innerHTML == 'Enter your email';
}
else
{
dojo.attr(edealEmailInput, 'value', 'Enter your email');
dojo.style(edealEmailInput, 'color', '#CC2525');
}
It looks like your "d.addCallback" code might not be disposed of properly. You might want to try placing "dojo.stopEvent()" possibly before the "anim.play();" line and see if this would stop the postback.
From the api.dojotoolkit.org site, the dojo.stopEvent() "prevents propagation and clobbers the default action of the passed event". From the docs.dojocampus.org site, they say that "dojo.stopEvent(event) will prevent both default behavior any any propagation (bubbling) of an event."
Good luck, and hope this helps you out some.