javascript - Method for disabling a button in dat.gui? -


i trying figure out way disable/enable buttons within dat.gui.

i have dat.gui set control animation. when animation reaches end, want "play" button become disabled. have tried adding "disabled" attribute dom elements of button, still seeing corresponding function fire when button clicked after attribute set.

my current method following:

  1. locate li element corresponds button in dat.gui interface
  2. create new dom element semi-transparent , black, , add inside li element gray out contents of button.
  3. in function bound button, check existence of "disabled" dom element within button, , if exists, refrain executing rest of function.

this hack, , love know if there method disabling button built right dat.gui, or better method not aware of.

in dat.gui functioncontroller class responsible buttons. if @ its source code, there no conditional logic in there. controller listen click events on button , call function on click. means won't library here - need check in handler whether button disabled. along these lines:

// find gui controller listening given property on given object function getcontroller(gui, object, property) {   (var = 0; < gui.__controllers.length; i++)   {     var controller = gui.__controllers[i];     if (controller.object == object && controller.property == property)       return controller;   }   return null; }  ...  object.button = function() {   // don't if button disabled   if (getcontroller(gui, this, "button").domelement.hasattribute("disabled"))     return;    alert("button clicked"); }; gui.add(object, "button");  ...  // disable button getcontroller(gui, object, "button").domelement.setattribute("disabled", "");

note there no special styling disabled elements in dom.gui, have add own styles that. given see in case of button property label rather actual button isn't going quite trivial - think have place disabled attribute on controller.domelement.parentnode rather controller.domelement. should able use selector [disabled] > .property-name styles.

edit: can in more generic way extending functioncontroller:

function blockevent(event) {   event.stoppropagation(); }  object.defineproperty(dat.controllers.functioncontroller.prototype, "disabled", {   get: function()   {     return this.domelement.hasattribute("disabled");   },   set: function(value)   {     if (value)     {       this.domelement.setattribute("disabled", "disabled");       this.domelement.addeventlistener("click", blockevent, true);     }     else     {       this.domelement.removeattribute("disabled");       this.domelement.removeeventlistener("click", blockevent, true);     }   },   enumerable: true });

this add property disabled controller catch click events button handler isn't triggered. disabling button gets simpler then:

getcontroller(gui, object, "button").disabled = true;

and button handler can stay unchanged, won't triggered disabled buttons.


Comments

Post a Comment

Popular posts from this blog

javascript - RequestAnimationFrame not working when exiting fullscreen switching space on Safari -

request animation frame stops working when exiting fullscreen clicking on original space's safari window. fine if fullscreen mode canceled escape key or calling cancelfullscreen(). steps reproduce: open https://dl.dropboxusercontent.com/u/769042/prezi/safari-fullscreen.html click "draw raf", kittie appears click "fullscreen", go fullscreen click "draw raf", kittie appears go space original safari was, showing "click exit fullscreen mode", click anywhere, out fullscreen click "draw raf", nothing happens what handling click calling: window.requestanimationframe(draw); which draws on canvas context: function draw() { ctx.drawimage(img, math.random()*500|0, math.random()*400|0, 100, 100); } i checked .hidden , .visibilitystate, updated correctly. tested on osx 10.9.3, safari 7.0.4 (9537.76.4). has workaround/solution other switching old settimeout? this sounds webkit bug 88940 : using reque...
Read more

jsf - How to ajax update an item in the footer of a PrimeFaces dataTable? -

this visual of table have: +---------+------------+-------------------+ | header1 | header2 | header3 | +---------+------------+-------------------+ | row | input | calc'ed output | | row b | input b | calc'ed output b | | etc.. | etc.. | etc.. | +---------+------------+-------------------+ | total: total calc'ed output | +------------------------------------------+ and stripped-down code: <p:datatable id="mytable" value="#{mybean.somelist}" var="currentitem"> <p:column headertext="header1"> <h:outputtext value="#{currentitem.name}" /> </p:column> <p:column headertext="header2"> <pe:inputnumber value="#{currentitem.inputval}"> <p:ajax event="change" listener="#{mybean.changelistener}" update="outputval outputtotal...
Read more

django - CSRF verification failed. Request aborted. CSRF cookie not set -

error: reason given failure: csrf cookie not set. in general, can occur when there genuine cross site request forgery, or when django's csrf mechanism has not been used correctly. post forms, need ensure: browser accepting cookies. view function uses requestcontext template, instead of context. in template, there {% csrf_token %} template tag inside each post form targets internal url. if not using csrfviewmiddleware, must use csrf_protect on views use csrf_token template tag, accept post data. you're seeing section of page because have debug = true in django settings file. change false, , initial error message displayed. can customize page using csrf_failure_view setting. did find, nothing helped, must foolish(( my template <form method="post">{% csrf_token %} {% field in form %} <div class="control-group"> {{ field }} </div> {% endfor %} <input type=...
Read more