Script To Disable Arrow Button When Object Reaches The Canvas Edges?
Dec 13, 2011
I am using the HTML5 canvas element and an image object that I move around the canvas using the arrow buttons.I would like to be able to move the image around until it reaches the top, bottom, or sides of the canvas element. I know that I need to get the position of the x, y positions of the element. I'm just not sure about the logic to compare the elements location to the sides or top or bottom of the canvas. Furthermore, not sure how i would disable to arrow button to prevent me from arrowing the object outside of the canvas.I'm testing in IEMy canvas width is 512 and canvas height is 480The object I'm moving around is an image.png that is 32 X 32I know this isn't much to go on, but I'm having difficulty coming up with how to ask the question
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May 17, 2011
I'm trying to get a next/previous arrow to float over the right/left edges of a slideshow div. I'm using to absolutely positioned divs to contain the next/previous buttons but for whatever reason they refuse to display above the slideshow div. Is there any way to get controllers to float over the cycle container?
Here's my code and if you give it a try you won't see the floating next/previous buttons unless you change the 'top' values for #next_btn and #prev_btn in the CSS to be greater than the height of the image (change to 410 to see them in my example):
<style>
#container {width: 500px;}
#container {position: relative;}
#next_btn {position:absolute; top:10px; right:5px;}
[Code]....
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Feb 24, 2010
Disable Arrow Keys I am creating an online flash gaming site, Aaron's Game Zone: [URL]Some of the games on it use the arrow keys, however IE also uses them to scroll the page. I am learning JavaScript and am trying to write some script to pervent the page scrolling up and down while playing a game.For example.Guardian Rock uses the arrow keys to slide around, at the same time the page scrolls.[URL]
Here is the script I've tried to write to pervent the scrolling:
<script type="text/javascript">
function KeyPressHappened(e){
if (!e) e=window.event;
[code]....
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Aug 21, 2009
I got this problem while disabling Up/Down arrow keys in Mozilla firefox browser useing javascript Given a standard HTML select/option box, I can capture any keypress while the select has focus and stop the select�s option list from changing values in IE but not in Mozilla.
[Code]....
In IE and Mozilla I have no trouble capturing the keyCode, and in IE I can prevent pressing a letter "D" and Up/Down arrows from making the list move to Dead, but the select list will drop to �Dead� in Mozilla. I've tried attaching the event handler to keyup, keydown and keypress, but have yet to find a way in Mozila to capture the keypress and prevent the select list from changing the current selection.
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Jan 14, 2011
I want to be able to place an image on the canvas and have an onclick event for that object.
Code:
<!DOCTYPE html>
<html>
<head>
[code]....
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Feb 23, 2010
I want to create a rectangle with a line in the middle with the canvas object. The problem is that the line in the middle gets bigger than the rest of the rectangle. How do I solve this? I believe it has something to do with shadows. If so, how do I turn them off.
My code is:
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Jun 27, 2010
I'm attempting to use AJAX to retrieve information from an XML file and apply it to my HTML page. The code looks to be fine but for some reason my
Code:
requestObj.status == 200
never reaches 200. In Safari when i debug it says this status is no longer valid.and in IE it tell me the
Code:
requestObj.open() has been denied.
HTML document
Code:
<body>
<div id="xmldata"></div>
<script type="text/javascript">
window.onload = readyAJAX;
[code]....
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Jul 12, 2011
I want to delete some lines on the canvas that i have created in HTML5 (with the <canvas> tag). I know one solution and that is using clearRect() (give this function the HEIGHT and WIDTH of the canvas and you clears the whole canvas.).But i don't want to clear the whole canvas, i only want to delete a few lines made by the function lineTo().
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Mar 16, 2009
I have a menu in which is applied typeface script. Typeface 0.11 version doesn't support hover on links. There is an experimental version but doesn't work very well for me, so i tried to implement hover by myself.
Problem is: hover works pretty well changing canvas context property fillColor and then calling fill(), but the stroke on hovered voice remains on another color. Difficult to explain, so i put some test code online: TEST CODE As you can see, passing with mouse on the menu voices triggers the hover and the element change, but remains bordered in red.
[Code]...
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Nov 26, 2011
how do they program the "social sharing" div (you'll see it over on the left side), so that it scrolls until it reaches the top of the viewport, then its fixed until it reaches the footer?
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May 19, 2009
I have a message system that I want to prevent double posting. So when a user sends a message i would like to disable the button. But its done using AJAX and will load without much time. But enough to cause double clicking. So now the button needs to be enabled once Text is put in the Form Field.
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Jan 21, 2010
I created a button with 2 states for mouse-over effects using css sprites. This has always worked well and I have no issues. I recently added some jquery to my buttons to create a smooth transition for the mouse over and this is where I see the issue. When the page is initially loaded the image looks fine. When I hover over the image there is a brief flash of black around the transparent edges then the transition begins and everything looks okay. When I un-hover the image shows the black edges. From this point any time the image is in the un-hovered state the edges are black, and when I hover the black goes away.
Example: [URL]
Here is the jquery code:
$('p.rss-button a')
.css({ 'backgroundPosition': '0 0' })
.hover(
function(){
$(this)
.stop()
.animate({
'opacity': 0
}, 325);
}, function(){
$(this)
.stop()
.animate({
'opacity': 1
}, 325);
});
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Feb 24, 2010
Why doesnt the following code work in IE. There is an error on the same row as fillText. It says object doesnt support this property or method.
<html>
<head>
<title></title>
<script type="text/javascript" src="excanvas.js"></script>
</head>
<body>
<canvas id='chart' width='500' height='200'>
[Code]...
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Sep 27, 2009
I've implemented Dialog of jQuery UI and set its modal option to true, but object elements (embedded youtube video) were not disabled thus they were even rendered on top of the said dialog.
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Dec 5, 2005
I've found this code:
<SCRIPT LANGUAGE="JavaScript">
function Disab (val) {
if(val=="1")
{form1.Submit.disabled=true}
if(val=="2")
{form1.Button.disabled=true}
}
</SCRIPT>
<input type="submit" name="Submit" value="Submit" onClick="Disab (1)">
for disabling a button on submit, but it's only seems to work in IE, can anyone recommend one that works in both IE and firefox?
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Jun 7, 2009
i have a button that i want to disable on action . it work's fine in Firefox but not IE6 ,IE7,IE8
this code get the id=button and every 3 seconds (enable --> on click -> disable -> 3 seconds --> enable
var button = document.getElementById('button');
function disable(button) {
button.disabled = true;
setTimeout(function (el) {
[Code]...
the weird thing is if i delete all the html and keep only the code , it works fine on all browsers
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Feb 16, 2011
I have a form with submit button, and i want to disable the button while the request the processing....and then after the request has completed, then again it will be enable....How to implement this, to my form?Is there a way to get the acknowledgment after processing the request...
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Dec 18, 2006
can anyone please tell me how can i disable or remove the X button(i.e.
close button) on the browser. i just want to apply this only to the one web page of my application.
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Jul 20, 2005
I was wondering how i would go about disabling the edit button in the IE6 taskbar.
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Feb 13, 2010
I have one dropdown list with list of users categories, like this:
Users
Moderators
Super Moderators
Administrators
and I have one Submit button wich is by default disabled. How can I enable it when user select for example "Moderators" from dropdown list?
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May 3, 2010
I would like to disable the back button in IE7 and IE8. I assume the best way is to use window.open. I tried below and it disabled the IE back button but doesnt show the menu items, url bar etc.
Code:
<a href="#" onClick="window.open(theURL, 'newpage.html', 'fullscreen=yes, scrollbars=auto')">go to page with disabled IE back button</a>;
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Oct 31, 2011
I've setup a test on jsfiddle: [url]
Its a controlgroup with two buttons (2 anchors with data-role='button')
Now I want to disable them, but its unclear how to do this.
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Apr 18, 2011
i'm building a register page for my forummy problem faced is i can't disable the DAMN Button! while the user input duplicate or wrong format
<?php
include 'dbconn.php';
include 'Header.php';
[code]....
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Jul 27, 2011
I am trying to recreate this functionality on my website where you can drag a background image around and when you get ot the edges of the image it bounces back to the edge of that corrosponding side. have a look at the site in question - [url]
So far i have recreated the top left and right edges using
Code:
Here is how i thought the bottom would work
Code:
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Jul 23, 2005
I have created a frameset which is my default page. I am using
window.resizeto and window.move to size and position the window on the
users screen, but I also need to disable the maximize button on the
window.
I know this can be done when using the window.open function as one of
it's parameter's, however, as this is my landing page, I need to do
this on page load.
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Apr 28, 2011
Once a button is clicked i would like to disable it for x seconds. The button adds a div to the page and testing has shown excessive clicking can cause issues and halt the script, which is why i want to disable it.
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