I'm playing around with full browser canvas element it seems to spill beyond the browser bounds generating horizontal and vertical scrollbars.This is the technique I'm using: [code]I've also tried to wrap the canvas element inside a div and set that div's overflow equal to hidden, but the results are unchanged.
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My application is based on client-server architecture. It is a E-Learning Application. I am using ruby on rails server, javascript,canvas,SVG element. I have an idea of an interface to allow the teacher to build any type of animation for students using Cake javascript API. I wanted to save the animation build using the canvas element on the rails server either in database or as a file. Later I have to use that animation to be played to students. Any way to do it on any language except proprietary languages like flash but from that language communication can be done with rails server.
View 1 Replies View RelatedI've coded in Java before but I'm still having some trouble. I am trying to draw a ribbon type shape on an <canvas> element and for some reason, when I turned it into a function, it seemed not to work. Here is what I have for drawing the ribbon with a function:
function drawRibbon(height,width,Canvas){
var c=document.getElementById(Canvas);
var cxt=c.getContext("2d");
cxt.fillStyle="#bb0044";
cxt.beginPath();
cxt.moveTo(0,0);
cxt.lineTo(0,height-50);
cxt.lineTo((width-20)/2,height-100);
cxt.lineTo((width-20),height-50);
cxt.lineTo(width-20,0);
cxt.shadowOffsetX = 5;
cxt.shadowOffsetY = 10;
cxt.shadowBlur=10;
cxt.shadowColor = "black";
cxt.fill();
cxt.shadowOffsetX = 0;
cxt.shadowOffsetY = 0;
cxt.shadowBlur=0;
cxt.closePath();
cxt.beginPath();
cxt.strokeStyle = "#ffcc22";
for (i=5;i <= 135; i=i+15){
cxt.moveTo(5,i);
cxt.lineTo(5,i+5);
cxt.stroke();
}}
drawRibbon(200,120,navCanvas);
I feel like it has something either to do with the function definition, or the call. Before this script is executed, i create a canvas in the following way:
<canvas id="navCanvas" height="200" width="120">
Why it is not displaying.
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().
View 1 Replies View RelatedI 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]...
IE6 in standards mode doesn't seem to hide scrollbars on the body element
(overflow:hide) Ain't this a quandary. I have it in my head that I need to
specify html instead. The scrollbars do hide on Gecko browsers though, so
there is definitely a disagreement among browser developers on how to
implement scrollbars (as a side note, Gecko browsers with their notoriously
bug-ridden resize code seem to always screw up when asked to stretch and
scroll divs, even when the page is reloaded on every resize!)
My first thought is to modify the CGI that generates the style sheet as I
already have code that deprecates the document type when hidden scroll bars
are required on IE6 (but not IE5.) This is based on the simple empirical
evidence that the scroll bars are still there on IE6 in standards mode, so
the optimal document type (XHTML strict) cannot be used. So I could just
change this to output an html style (rather than a body style) for IE6 and
lose the deprecation (it wouldn't be needed at this point.)
So the question is this. Given that CGI-based processing of browser
versions for these kinds of tweaks is taboo, what would you check on the
client side before dynamically generating the style for the body and/or html
element? It doesn't seem like you could just send both as this would surely
break some older browsers (I know you can do tricks with comments and such,
but that only works for NS4 and maybe IE3 AFAIK.)
documentElement is the only thing I can think of that indicates standards
mode and NS6/Mozilla support this AFAIK.
IE Conditional comments perhaps? I would hate to hard-code a test for a
browser version number into the actual document (for obvious reasons), but I
guess it is an alternative if the browser version is exposed to these
things.
I don't see any other way to deal with a situation like this than with
server-side code that looks at the browser's version number and makes the
necessary adjustment. And there are lots of little differences like this
that just don't seem to have viable client-only solutions. There's DirectX
stuff (probably is an object detect for that) and funky colored scrollbars
(hey people ask for them) and document margins (Opera did them slightly
differently than the rest as I recall) and now this scrollbar thing.
I have used a textarea to display typewriter effect text. The scrollbars are displayed by default. What is the code to disable the scrollbars in a textarea form field? < scrolling="no"> does not seem to work.
View 2 Replies View RelatedThis code is for an external, homemade scroolbar set, requiring 8 images:
arrowDown_on.gif --Active Button used when scrolling down (down arrow) http://www.boomspeed.com/buzz_killr_x/arrowDown_on.gif
arrowDown_off.gif --Inactive Button http://www.boomspeed.com/buzz_killr_x/arrowDown_off.gif
arrowUp_on.gif --Active Button used when scrolling up (up arrow) http://www.boomspeed.com/buzz_killr_x/arrowUp_on.gif
arrowUp_off.gif --Inactive Button http://www.boomspeed.com/buzz_killr_x/arrowUp_off.gif
arrowTop_on.gif --Active Button used to go straight to top of page (bigger up arrow) http://www.boomspeed.com/buzz_killr_x/arrowTop_on.gif
arrowTop_off.gif --Inactive Button http://www.boomspeed.com/buzz_killr_x/arrowTop_off.gif
arrowBottom_on.gif --Active Button used to go straight to bottom of page (bigger down arrow) http://www.boomspeed.com/buzz_killr_x/arrowBottom_on.gif
arrowBottom_off.gif --Inactive Arrow http://www.boomspeed.com/buzz_killr_x/arrowBottom_off.gif
<script>
var newWindow = null;
var scrolling = 0;// Controls whether the layer is scrollin or not
var yT = 25;// Pixel position the top of the scrolling layer should be set to
var lT = 25;// Initial position for the top of the layer
var yI = 5;// Increment that the scrolling layer should move at
var yH = 0;
var domStyle;// Stores the generic DOM for the scrolling layer to access style properties
var dom;// Stores the generic DOM for the scrolling layer
var isDHTML = 0;
var isLayers = 0;
var isAll = 0;
var isID = 0;
if (document.images){
imag = new Array();
imag[0] = "media/arrowUp_off.gif";
imag[1] = "media/arrowUp_on.gif";
imag[2] = "media/arrowDown_off.gif";
imag[3] = "media/arrowDown_on.gif";
imag[4] = "media/arrowTop_off.gif";
imag[5] = "media/arrowTop_on.gif";
imag[6] = "media/arrowBottom_off.gif";
imag[7] = "media/arrowBottom_on.gif";
im = new Array();
for (var i = 0; i < imag.length; i++)
{
im[i] = new Image();
im[i].src = imag[i];
}
}
if (document.getElementById) {isID = 1; isDHTML = 1;}
else {
if (document.all) {isAll = 1; isDHTML = 1;}
else {
browserVersion = parseInt(navigator.appVersion);
if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {isLayers = 1; isDHTML = 1;}
}}
var isIE = 0;
if (navigator.appName.indexOf('Microsoft Internet Explorer') != -1) {isIE = 1;}
var xC = 5;
var theDelay = 0;
var frameRateMax = 48;
varframeRate = 1;
function scrollPageTo(xN) {
if (xC > xN) {
xC = xC - frameRate;
posDif = (xC - xN)/(frameRate/2);
if (xC < xN) { frameRate = 1; return; }
}
else {
xC = xC + frameRate;
posDif = (xN - xC)/(frameRate/2);
if (xC > xN) { frameRate = 1; return; }
}
if (isIE) {
document.body.scrollLeft = xC;
}
else {
scrollTo(xC,0);
}
if ((posDif >= frameRateMax) && (frameRate != frameRateMax)) frameRate = frameRate + 1;
else if (frameRate > 1) frameRate = frameRate - 2;
setTimeout ('scrollPageTo(' + xN + ')',theDelay);
}
function findDOM(objectID1,objectID2,withStyle) {
if (withStyle == 1) {
if (isID) { return (document.getElementById(objectID2).style) ; }
else {
if (isAll) { return (document.all[objectID2].style); }
else {
if (isLayers) {
if (objectID1) { return (document.layers[objectID1].layers[objectID2]); }
else { return (document.layers[objectID2]); }
}
};}
}
else {
if (isID) { return (document.getElementById(objectID2)) ; }
else {
if (isAll) { return (document.all[objectID2]); }
else {
if (isLayers) {
if (objectID1) { return (document.layers[objectID1].layers[objectID2]); }
else { return (document.layers[objectID2]); }
}
};}
}
}
function openWindow(contentURL,windowName,windowWidth,windowHeight) {
widthHeight = 'height=' + windowHeight + ',width=' + windowWidth + ',scrollbars=yes'
newWindow = window.open(contentURL,windowName,widthHeight);
newWindow.focus()
}
function closeWindow() {
if (newWindow != null) {
newWindow.close();
newWindow = null;
}
}
function startScroll(objectID1,objectID2,direction) {
domStyle = findDOM(objectID1,objectID2,1);
dom = findDOM(objectID1,objectID2,0);
scrolling = 1;
yT = domStyle.top;
if (document.getElementById) {
pxLoc = yT.indexOf('px');
if (pxLoc >= 1) yT = yT.substring(0,pxLoc);
}
if (window.innerHeight != null)
yH = window.innerHeight - 25;
else
yH = document.body.clientHeight - 25;
if (dom.offsetHeight != null)
yH = yH - dom.offsetHeight;
else
yH = yH - dom.clip.height;
scroll(direction);
}
function scroll(direction) {
if (scrolling == 1) {
if ((direction == 1) && (yT <= lT)) {
yT = (yT/1) + yI;
if (yT > lT) yT = lT;
domStyle.top = yT;
}
else {
if ((direction == 0) && (yT >= yH)) {
yT -= yI;
if (yT < yH) yT = yH;
domStyle.top = yT; }
}
if (document.getElementById) {
yT = domStyle.top;
pxLoc = yT.indexOf('px');
if (pxLoc >= 1) yT = yT.substring(0,pxLoc);
}
code2run = 'scroll('+ direction + ')'
setTimeout(code2run,0);
}
return false;
}
function stopScroll() {
scrolling = 0;
dom = null;
domStyle = null;
return false;
}
function URB(objectID1,objectID2) {
domStyle = findDOM(objectID1,objectID2,1);
dom = findDOM(objectID1,objectID2,0);
if (window.innerHeight != null)
yH = window.innerHeight - 25;
else
yH = document.body.clientHeight - 25;
if (dom.offsetHeight != null)
yH = yH - dom.offsetHeight;
else
yH = yH - dom.clip.height;
domStyle.top = yH;
dom = null;
domStyle = null;
}
function URT(objectID1,objectID2) {
domStyle = findDOM(objectID1,objectID2,1);
domStyle.top = lT;
dom = null;
domStyle = null;
}
function toggle(imgName,num){
if (document.images && imgName){
imgName.src = im[num].src;
}
return false;
}
</script>
**Please do not use my images, as they were provided for examples only.
in the parent window, i have some objects that will release a pop-up window. in the pop-up window you can make various changes that will affect the database. to see those changes in the parent window, i need to refresh...right?
well, when i refresh...if you're working at the bottom of the page it pops the scrollbars all the way back up to the top. is there a way to reposition the scrollbars without the use of anchors?
Is there anyway to detect if scrollbars were made visible in a
textarea? I'm not talking about initial setting of the scrolling
attribute, but rather whether scrollbars have been added either
horizontally or vertically based on the users text input?
After i open a new window can i show scrollbars ???
(if an image is bigger than my screen)
Something like :
xxx(a,b) {
if (a < b){
self.scrollbars = true;
} else {
self.scrollbars = false;
}}
well, the example does not work, but is there a way to do something like
that ???
I'm looking for an solution to find out the real vertical viewport -
without the height of horizontal scrollbars.
I have two frames side by side. The left one declared 'scrolling="no"'
and the right one 'scrolling="auto"'. For the left frame it is important
to know if the right frame has a horizontal scrollbar and how sick it
is. So I have tried to compare the viewport of both frames.
Using 'window.innerHeight', 'document.documentElement.clientHeight',
'document.body.clientHeight' or 'document.body.offsetWidth' I get the
height including the scrollbars.
The same problem with two frames (rows="50%,50%) i've solved with block
elements declared with a width of 100%. Comparing the offsetWidth of
both, I can see if there is a scrollbar in one frame. But with frames
side by side that doesn't work.
i use netscape 7 and want to hide the scrollbars of the window when
something happens. I tried this:
window.scrollbars.visible=false
window.scrollbars.visibility="no"
....
Nothing works. Is it also possible only to hide the vertical scrollbar instead of both?
I was checking on jQuery plugins, but most of the scrollbar ones are using like 4 - 5 div classes just to stylize one scrollbar and most of the classes names must be specific to make it work with the plugin, is there any way to give some style to a scrollbar without doing all that coding?
View 2 Replies View RelatedHow exactly does the sizing of the grid work? I have a grid that I've tried to experiment with and it seems like no matter what setting I use, there is a vertical and a horizontal scrollbar. the only thing that changes is if it stretches to fill the its container div. How do I get it to fit within a specific width and also to not display scrollbars?
View 3 Replies View RelatedI am trying to add a link to a web page which will open a new window which has no scrollbars ,toolbars,menu etc for a nice clean look(the window will display a flash image display gallery) I know you do this with javascript but am having trouble placing the javascript in the html ,what would be ideal is if someone was kind enough to give me an example of exactly how the complete page code would look with the javascript included,it need only be a very simple page with no content except the link which maybe we could just call sample.
View 2 Replies View RelatedI have mangled up the following to add fixed position left/right scroll links to a horizontal scrolling site:
Code JavaScript:
$(document).ready(function() {
$('#container').append('<ul class="scroll_controllers"><li class="left"><a href="#" title="Scroll Left">«</a></li><li class="right"><a href="#" title="Scroll Right">»</a></li></ul>');
$('.right a').click( function(){
[code].....
I'd like to make it conditional on there being a need to scroll.
how to have an iframe with constant scrollbars so the scrollbars are visible even though there is nothing to scroll!
I have this now:
Code:
<script type="text/javascript">
function ChangeScrollState (select) {
var iframe = document.getElementById ("thisIframe");
[code]....
If I hit the option with scroll I get what I want, but how do I make this static?
I setup the image popup ( http://www.sitepoint.com/article/res...it-images-size) on our portfolio:www.visualdevelopments.com/portfolio but the large image I want to display the whole thing. Can I set this somehow to add scrollbars so the user can see the entire image if the image is larger then their screen size?
View 2 Replies View RelatedI have a div that has an overflow set to auto. I would like to know if
the scrollbars are visible in javascript.
I'm working on a script that involves dragging an element around a
page. When it is dragged so that part is out of the window, the
scrollbars are activated. Is there a way to turn off this behavior?
I have a div that is filled with content dynamically and is fixed so it will always be in the same place even when you scroll. I need scrollbars to appear when the div is has too much content and goes beyond the screenborder.
View 1 Replies View Relatedi want the scrollbars to be preset at the bottom of the div each time someone visits the site.
<div id="scroller-shoutbox" border="0" cellspacing="0" style="background-image:url(images/table-bg.png);border-bottom:solid 1px #333; width:498px; height:300px;border-left:solid 1px #333;border-right:solid 1px #333; overflow-x: hidden; overflow-y: auto;">
[Code]....
the latest content is unseen because the scrollers are at the top
I have an iFrame on which I wish to display scrollbars ONLY when the mouse is over the iFrame AND the source of the iFrame is larger than the iFrame can display I am using the following code for the iFrame but believe that I need to add some script to make it work:
<iframe src="http://www.mhgoebel.com" frameborder="0" id="frame" width="320" height="356" scrolling="no">
onmouseover="setScrolling('auto')" onmouseout="setScrolling('no')"
</iframe>
I'm listening for the window.onresize event and trying to get the document.body.clientWidth afterwards to make sure a wide block fits onscreen. I'm working in Firefox and the thing is, when a scrollbar is added to the page due to content getting longer, the body.clientWidth gets smaller, but the window.onresize doesn't fire (I guess this makes sense as the window hasn't been resized per se).
I am assuming that I will have to check the body.clientWidth manually after the content gets longer and then call my resize function if so. But is there a way to achieve this or watch body.clientWidth other than window.onresize?
I'm trying to open a fullscreen page using this link:
<a class=sangnavn href="javascript:void(0);" if low.txt&side=1','',' fullscreen=yes, scrollbars=no')";>Let if low</a>
But I still gets a deactivated scrollbar on the right side, and I don't want it
