Re: [Rails-spinoffs] Addressing a class, rather than an id?
Quoting Raymond Brigleb <[EMAIL PROTECTED]>: So my question is: am I barking up the wrong tree? Is there an easy way to address CSS properties of a class of objects on a page, or do I need to loop through them individually somehow? Has anyone tackled this one? If I understand your question right, take a look at the utils.js in Scriptaculous. It provides a set of functions for handling CSS classes under the Element.Class "namespace". E.g. Element.Class.add(element, "someclass") Element.Class.has, Element.Class.remove, etc. I've added a Element.Class.replace and a few other helpers, I'm sure you'll find your own extensions necessary but its a useful start. hth Sam (-i-am) ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Centering one Div within Another
Title: Message Is there a prototype.js or script.aculo technique to easily center one div within another? SamC ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Centering one Div within Another
Title: Message > Is there a prototype.js or script.aculo technique to easily center one div within another? A few more words of explanation... - I'm familiar with centering DIVs using margin: 0 auto 0 auto; I need this DIV to be centered top to bottom, left to right... --- and it needs to work in IE 5.5, which is another level of difficulty. I've tried writing a _javascript_ to get the height / width of both DIVs. It isn't easy when either of the DIVs has height:auto; height will return "null". Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Centering one Div within Another
>Even if prototye had one, according to >http://wiki.script.aculo.us/scriptaculous/show/SupportedBrowsers, IE 5.5 isn't >supported. Sorry I brought up 5.5. I'd noticed prototype.js' browser support earlier and gone ahead. So far, I've made a couple of 5.5 modifications to prototype.js. setStyle / getStyle had to try/capture error on cursor:pointer and switch to cursor:hand... and more. I don't use all of prototype. What I do use is a benefit to development. Still, if there a good technique to center a couple of divs top/bottom, left/right, I'd be interested. Even if it is restricted to the browsers supported by prototype.js (which is quite a few...) Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Centering one Div within Another
Title: Message > Try here for cross-browser viewport support: > http://www.quirksmode.org/viewport/compatibility.htmlQuirksmode does it again. Still some work to get there, but this is a start. I was sure this problem must have been solved with _javascript_ hundreds of times, but Google doesn't pop up solutions. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Scripts.aculo Highlight (and others)
Title: Message I have a solution to this problem, but I'd like to know if there is a more common solution that doesn't require modifications to the Effects code. I wonder if I'm doing something that made a non-problem a problem. Almost any of the Scripts demos have a race condition... if the script is called again (new instance of the effect), before the first instance completes, the final element may have different characteristics than the original. A good demo of this is the Effects.Highlight http://wiki.script.aculo.us/scriptaculous/show/CombinationEffectsDemo Note the color of the element on page load. Click several times, being sure to click while the highlight is in progress. The final color of the element will not match the original. Subsequent instances of the Highlight effect have captured the background color "in progress" and restored the final background color to the "in progress" color. I had to add code to gate requests to Highlight when in progress. It required a modification to Highlight to callback on completion to open the gate. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Tooltips
Title: Message Anyone know of a tooltip extension which uses script.aculo or prototype? e.g., hover a mouse on an object and pop-up a "help" dialogue? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Tooltips
Title: Message Thanks for the tooltip pointers. I'm sure I can make do with one of these. I won't have a chance to evaluate any of these until later this week. The solutions posted show that the term "tooltip" can describe different functionalities. 1 - there are solutions that pull up the ALT or TITLE tag, and that's very cool and simple... I think I may go with this. 2 - for more complex "help" tooltips, some solutions take a pointer to a hidden which contains complex markup and accepts CSS. Sort of a revelation for me that there are different kinds of tooltips. Thanks, Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] IE rendering of Sliders
Title: Message
Small point,
has anyone noticed that the sliders don't render properly in IE
6.0?
http://wiki.script.aculo.us/scriptaculous/show/SliderDemo
I've dabbled with
the HTML and CSS and got 'em to render properly in IE 6 (and IE 5.5... yes, I
know...)
.slider-track
{ width:50px; height:5px;
background-color:gray;
position:relative; /* IE fix
*/ }.slider-handle
{ width:5px; height:10px; background-color:#F00; cursor:move; position:absolute;
/* IE fix */ }
One
of the fixes is the HTML comment above tells IE there's no innerHTML, so
the font-size won't make the contrastHandle larger than 10px. Eliminate
the comment, or include a blank space and the handle will grow to
the font-size, which may be larger than 10px. Sure, you could shrink the
font-size, but this avoids the issue entirely.
The
other fix is: position the handle absolutely... IE wants to make the outer div
expand to accommodate the handle, so the position:absolute removes it from
the content, and doesn't change the behavior or rendering in any way. (The
outer (track) div must be positioned, for the position absolute to
work).
Seems to render correctly in IE 6 and 5.5
now.
Sam
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[Rails-spinoffs] Ajax - preloading images
Title: Message I could experiment to figure this out, but maybe the work has been done so I'm going to ask. Using Ajax, if I wanted to preload several (20) small (<1K) images, behind the scenes... would I... 1 - Queue the loading of the images with Ajax one at a time, asynchronously, and ignore the completion results. Would this result in the image being in the browser's cache even if the Ajax returned result was not attached to the DOM? 2 - Queue the loading of an HTML page that refers to all of the images Must the Ajax page loaded content be attached to the DOM for the images to be loaded, or can I forget about that and assume the images will load? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Array.prototype.push()
>Gotcha. If you fix it so that array.push works, it'll throw another >error. I kept fixing them until I got to the 'for el in array' error, >which I didn't know how to fix. So, best not to include prototype.js if >you want to support IE 5, or if you know some magic that makes the >For...in work, then go nuts. I encountered one of these for/loop errors in prototype with IE 5.5. For some reason, a generated Array had a length property that 5.5 couldn't read. Knowing that 5.5 *shouldn't* have a problem with array length, (and not knowing what internal anomaly in the array was inducing this 5.5 behavior), I copied the array to a new variable, copied it back (overwriting the original). The loop worked fine after that. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Code comments?
A little OT. Hope you don't mind... here is a function which modifies a
value in an external stylesheet (works in Firefox, IE 6, IE 5.5)...
I've rewritten it using prototype.js structures and suspect there are some
additional optimizations which could be made. There may be a way to use
findAll or another equivalency operator to test for the innermost equality
and perform the assignment if it's true?
Comments appreciated...
Sam
cssSelectorUpdate2:function(sSelector, sProperty, sValue) {
// Update the property value for a specific sSelector in a stylesheet
for(var i = 0; document.styleSheets.length > i; i++) { //
Mozilla
var oRules = document.styleSheets[i].rules ||
document.styleSheets[i].cssRules;
for(var j = 0; oRules.length > j; j++) {
var sSelectors = oRules[j].selectorText;
// string of all selectors on this line
var aSelectors = sSelectors.split(',');
// separate all selectors
for(var k=0; khttp://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Loading CSS for AJAX apps.
Title: Message
function LoadCSS(file){
var head =
document.getElementsByTagName('head').item(0)
var linkTag =
$('loadCSS');
if(linkTag)
head.removeChild(linkTag);
csslink =
document.createElement('link');
csslink.href =
"">
csslink.rel =
'stylesheet';
csslink.type =
'text/css';
csslink.id =
'loadCSS';
head.appendChild(csslink)
}
Nice. I'd like to
hear of any cross-browser support issues, or lack of. I can see this
being useful in my application if it works. Has anyone tried this in
Safari?
Sam
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[Rails-spinoffs] Detecting Body Onload
Title: Message
I have a piece of
code that "waits" for body onload. Every 30ms, it tests
$('body').
Seems that isn't
always good enough. I've hit situations where the DOM is "partially"
loaded somehow.
I fixed matters by
setting a global flag...
which provides a
better test... of course I could always
but I had wanted to
keep my HTML markup JS free... Is there a reliable way to
test for body loaded and not include an onload handler in the HTML
markup?
Sam
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RE: [Rails-spinoffs] Detecting Body Onload
Title: Message > Or, in script (assuming you're using prototype) > Event.observe(window, "load", myHandler); I wasn't aware that window load did the job. I'll look into it. Did I read somewhere that window load waits for all images on the page to be loaded? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Detecting Body Onload
Title: Message > Ha, seems that Thomas just blogged on this yesterday... > http://mir.aculo.us/articles/2006/06/15/solving-the-onload-woe Following this link, I came to this: http://agileweb.org/articles/2006/06/16/speeding-up-onload which has a link: http://dev.rubyonrails.org/ticket/5414 indicating a patch is supplied for prototype.js for "faster" onLoad handling. Anyone have an idea when the beta of this copy of prototype.js will be available? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Detecting Body Onload
I've been following the body Onload discussion with interest. Not having had access to this solution when developing my application, I resorted to building a scheduler class:"Executive" which fielded the HTML-coded events from >From there, it's easy to imagine that the Executive class handles the dispatching of events to other Classes waiting for body Onload and Unload events. I have confidence that these events fire correctly in all browsers when the DOM is loaded and the images are still in-download-progress, providing a "fast" javascript initialization. This is the only event-markup on my page(s), and it seems a reasonable trade-off. So... I have a couple of questions: How much better is it to have a class to handle event dispatching Onload rather than hardcoding the event? Second - are there any (significant) unresolved cross-browser issues with the class FastInit ? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] PNG and Alpha-Transparency
Title: Message Is there a prototype / extension which will assist in cross-browser support of PNG images? http://www.alistapart.com/articles/pngopacity/ It seems to me that a class could be developed which would zip through the DOM and make changes where needed for IE 5.5 / IE 6.0 to handle PNG images. I don't want to write one if it's been done before. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] PNG and Alpha-Transparency
I'm looking over these scripts for PNG transparency. So many variables, so little time... Things to consider: size of the code, reliability, but what is bothering me is some of the scripts modify the to the point that I am concerned about whether the ID I have assigned to the image, along with the events, will survive. This would kill my application. Of course I can test but first... I normally use "View Generated Source" from the NLIS (in IE) or http://chrispederick.com 's "Web Developer" for Firefox to view the HTML additions and updates made by JavaScript. Both have worked flawlessly in the past. However, using Dean Edward's IE7, the NLIS "View Generated Source", shows no changes to the HTML at all. This can't be true, so I have two problems. Why is NLIS not showing the changes, and (2) What is Dean Edwards method? Does it the and nuke the like the other solutions? Last, it seems like the solutions I've tested leave IE 6 in a "loading page" state. The status bar shows it's loading the png image, and the cursor is an hourglass when hovered on the browser menus (but the browser is not "locked") yet the page appears fully rendered. I wonder what's up with that, and that makes (3) problems that need answers. I'm digging away, if anyone knows the answer, it could save me some time. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] PNG and Alpha-Transparency
Thank you everyone for forwarding the references to so many good PNG solutions. I was able to resolve my issues posted earlier and can now say some of the solutions seem very good. Dean Edward's solution is neat in that it doesn't require wrapping the with spans and the http://webfx.eae.net/dhtml/pngbehavior/pngbehavior.html Which gives a 4Kb JavaScript and renders nearly an identical solution as shown by "View Generated Source". Retains the http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] PNG and Alpha-Transparency
Title: Message
Ken,Thanks for the snippet. It was so
short even I could understand the code.Here's a snippet to modify
the filename on mouseover / mouseout for pngs in IE or whatever browser.
IT checks for the filter style and if present, modifies that attribute, not the
src attribute.
function pngHover(event) { if(event.type
== 'mouseover') { if(this.style.filter) // add -hover to
filename on mouseover this.style.filter =
this.style.filter.replace('.png',
'-hover.png'); else this.src =
"" '-hover.png'); } else
{ if(this.style.filter) // remove -hover from filename on
mouseout this.style.filter =
this.style.filter.replace('-hover.png',
'.png'); else this.src =
"" '.png'); }}
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RE: [Rails-spinoffs] Multiple Ajax.Request or Ajax.Updater
var call1 = new Ajax.Updater(
'id1',
'/foo1.html',
{
method: 'post'
});
var call2 = new Ajax.Updater(
'id2',
'/foo2.html',
{
method: 'post'
});
Looks like there's no parameters. Would method: 'get' perform any better?
3 seconds? Is there a network problem or a large chunk of data?
Sam
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[Rails-spinoffs] Implementing a boolean "switch" in a Class
Title: Message
I need a single
boolean which would be "globally" accessible to all instances of a
class. Seems like the boolean should be in the class prototype, but I
was troubled by the difficulty of setting the prototype boolean to
true. Maybe I'm missing something?
var MyObject =
Class.create();
MyObject.prototype =
{
bSwitch:
false,
... other
methods and properties
}
var oMyOb1 = new
MyObject();
var oMyOb2 = new
MyObject();
alert(oMyOb1.bSwitch); // reports false
alert(oMyOb2.bSwitch); // reports
false
Now set the value of
bSwitch to true so all the oMyObN's will see a true value.
I can see the
following methods...
// __proto__ works
in Firefox/Safari but isn't available in IE...
oMyOb1.__proto__.bSwitch = true;
alert(oMyOb1.bSwitch); // reports true
alert(oMyOb2.bSwitch); // reports
true
// This changes bSwitch
for a single instance. Not in the prototype.
oMyOb1.bSwitch =
true;
alert(oMyOb1.bSwitch); // reports true
alert(oMyOb2.bSwitch); // reports false, not
what we want.
// Seems strange to me to reference the Class, but this
works...
MyObject.prototype.bSwitch = true;
alert(oMyOb1.bSwitch);
// reports true
alert(oMyOb2.bSwitch); // reports
true
// It's a little more satisfying to create a
method to hide this reference to the class...
MyObject.prototype =
{
bSwitch:
false,
setSwitch:
function() {MyObject.prototype.bSwitch = true;}
}
// Now this works, and only requires a
reference to a method on an instance
oMyOb1.setSwitch();
alert(oMyOb1.bSwitch); // reports true
alert(oMyOb2.bSwitch); // reports
true
// I thought all
objects had prototypes. Why doesn't this work?
oMyOb1.prototype.bSwitch = true; // error: oMyOb1
is not a function
Is there another method that I've missed?
Did prototype.js extend __proto__ to work in IE?
Sam
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RE: [Rails-spinoffs] Implementing a boolean "switch" in a Class
Title: Message Nope... in fact this is one of the "dynamic" benefits of a prototype based object system. Changing the prototype of the "class" function (the function from which the other references are constructed), changes the state of all instances automatically. MyObject.prototype.bSwitch = true; is the correct way to achieve what you are looking for. Why would you want to do this by using an instance of said class? It seems to me you'd _want_ to _not_ have to know what instances are floating around in your application, so the "class" function's prototype is the natural place to make this change. In other words, you have 10 widgets and a couple of flibbets, maybe a few woozles on your page, each of them possibly containing N instances of MyObject. Why would you want to have to know the name of one of those instances to set this switch across all of them... see my point? After declaring the Class, I've never had to mess with a class before. This takes some getting used to, and it seems strange that I can't reference the class / constructor from an instance without knowing the constructor's name??? I was under a mistaken assumption that oMyObj1.prototype would move up the prototype chain to reach the constructor function MyObject. If var oMyObj5 = new MyObject(); doesn't it make sense that there should be a pointer on the oMyObj5 object which points back to the constructor function? Without __proto__, there's no way to reach back to the constructor without knowing the constructor's name? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Implementing a boolean "switch" in a Class
Title: Message Also... you said:** After declaring the Class, I've never had to mess with a class before.:-) you're still thinking of _javascript_ as a classical OO language, when it's not. Embrace the power of the prototype.Yes, my problem is getting to the point where this "feels" right. oMyObject.constructor.prototype.bSwitch = true; // doesn't produce an error, and doesn't change the global value in the class prototype, so what is it changing?
var test = function () {}
test.prototype = {color: 'red'};
var oTest1 = new test();
var oTest2 = new test();
oTest2.__proto__.color = 'blue';
alert('oTest1:color=' + oTest1.color + ' oTest2:color=' + oTest2.color); // blue blue
test.prototype.color = 'green';
alert('oTest1:color=' + oTest1.color + ' oTest2:color=' + oTest2.color); // green green
oTest1.constructor.prototype.color = 'purple';
alert('oTest1:color=' + oTest1.color + ' oTest2:color=' + oTest2.color); // green green -- not what we want
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RE: [Rails-spinoffs] Implementing a boolean "switch" in a Class
Title: Message Hmm, interesting. Frankly, i have no idea about the constructor thing -- half expected it to throw an error. But I'm still not sure why you're so reluctanct to use the main prototype; this is what it's for. Ultimately, you're looking for a way to use an instance to _get_at_ the main prototype... so why not just do it directly? It's a feature of the language, man. test.prototype.color = 'purple'; I believe you are right. It took a little getting used to, so no problem, and I'm glad to have had some confirmation of that approach in this thread. So... what does oMyInstance.contructor point to and how would I find out? ;-) ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Implementing a boolean "switch" in a Class
Title: Message
Not sure... but i'd start by inspecting it, using various different
"classes"...for (var p in oMyInstance.constructor){
alert("p = " +
oMyInstance[p]);}
Seems to point to nothing in Firefox anyway, the only
property returned is: color='purple';
[Rails-spinoffs] Ajax in IE 5.5 / Win 98
Title: Message Are Ajax requests available in IE 5.5 / Win 98? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98
Title: Message
> As
far as I know, all the way back to 5.0. Prototype, however, doesn’t work
in 5.0, but does work in 5.5 when things like array.push() and for…in were added
(odd that such basic language features were missing from
5.0).
I'm getting an Ajax error loading a URL. I don't
have much diagnostic code... ;-)
loadPageError: function(request)
{ alert('An error occurred loading the URL: ' +
this.URL); },
Does the parameter (request) or the "this" object hold error information
that I can alert?
Sam
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RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98
Title: Message
My earlier question wasn't stated
well...
I get an Ajax onFailure error in IE
5.5/Windows 98 only. Here's the
request...
new Ajax.Request
(sUrl{ method: 'get',
parameters: '',
onFailure: this.loadPageError.bind(this), onComplete: this.loadPageFinish.bind(this),
onException:
this.loadPageException.bind(this)});
Looking at prototype.js, the success / failure routines
are called with parameters:
onSuccess(transport, json) OR
onFailure(transport, json)
The
parameter transport is confusingly referred to as "request" in most
software I've seen using prototype.js, but transport does return
transport.status, which has a value of 501 in IE 5.5.
Using
Google, "XMLHTTP 501", I found this thread
http://www.html.com/forums/_javascript_/10018-ajax-problem-501-not-implemented.html
which
goes into a lot of other detail on this error but suggests the server is
responding 501 because it receives a "get" not a "GET".
Now
maybe Windows 98 should make this case-correction of get to GET, but I simply
changed my call (shown above) to method: "GET" and IE 5.5 / Win98 is working
fine now.
Seems
to me that this is a rare error, but prototype.js would be a better place for
this fix... especially since line 674:
if (this.options.method
== 'get' && parameters.length > 0)
will
fail if the user passes "GET".
Sam
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RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98
Title: Message I think the fix for Ajax 501 error in prototype.js would be to force the method to upper case on the transport.open line 679 this.transport.open(this.options.method.toUpperCase(), this.url, Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98
Title: Message I don't have any idea how to log a bug report so if anyone here would do it that would be fine with me. Sam -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gregory HillSent: Thursday, June 22, 2006 3:26 PMTo: rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98 That would definitely do it. Send a bug report to Sam, who maintains prototype. He’s never replied to my bugs in the past, but most of them eventually got fixed. Should probably also fix that line where it looks for ‘get’ to compare in lower case, while you’re at it. That way it’ll accept any case and send it on correctly. if (this.options.method.toLowerCase() == ‘get’) From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of SamSent: Thursday, June 22, 2006 1:20 PMTo: rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98 I think the fix for Ajax 501 error in prototype.js would be to force the method to upper case on the transport.open line 679 this.transport.open(this.options.method.toUpperCase(), this.url, Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Ajax in IE 5.5 / Win 98
I'd encourage you to learn. It's good for the soul. And it tastes great. AND it's less filling. http://dev.rubyonrails.org/ OK. I've submitted a ticket with the patch. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] multi file uploader
Looks good. How about posting a URL explaining how it works ? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] OT: Debugging iBook --- help
Title: Message This is way OT, but here goes... I've had an iBook for 2 days now and am debugging a web built with prototype/script aculo / windows / etc... I have no real experience on a Mac. Occasionally, there's no better way to debug _javascript_ than an alert in a loop... Once I have the information information I want from the alert, the loop may want to execute another 300 times. I have no idea how to kill Safari like I would do on a PC: CTRL+ALT+DEL, select the task, and stop. Any help on how to abort Safari when it is hovering on an alert? Second, any suggestion as to a good _javascript_ debugger for Safari? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] JavaScript Compression
Title: Message Is there a good windows-based _javascript_ compressor which will reliably compress script aculo and prototype? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] JavaScript Compression
http://dojotoolkit.org/docs/compressor_system.html Sounds promising. I'll see if I can survive the setup ! ;-) Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] JavaScript Compression
> It is Java-based, so should run on windows without a problem. It isn't a > polished GUI at the moment, you'll need to do a bit of scripting to get it > set up. More details here: > http://dojotoolkit.org/docs/compressor_system.html Here's a batch file I used to compress all my JavaScripts... It put the compressed *.js files in a subfolder compress, and references the rhino.jar on my drive D. MD compress FOR %%f IN (*.js) DO java -jar d:\rhino\custom_rhino.jar -c %%f > compress/%%f 2>&1 Pause I see about a 30% to 40% reduction in file size, and amazingly, everything ran the first time. Compressed prototype.js, script aculo, windows and more... I imagine the success of this compression engine is due to the hooks into the Mozilla JavaScript engine to get the parsing correct... I'm happy to have found this tool. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] JavaScript Compression
Title: Message Can _javascript_ files be gzip'ed in advance, stored on a server and delivered reliably to all browsers? Any browser exceptions? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Prototype Ajax event handlers
function updateCalendar(today, id){
new Ajax.Updater("calendars", "calendar.inc.php",
{asynchronous: true,
onCreate: function(){ showBusy },
onComplete: function(){ hideBusy },
method: "get",
parameters: "today=" + today +"&hotel_id=" +
""
});
}
It doesn't take long to pull a request. Maybe the hide event occurs before
the show event has a chance to display? Did you try to breakpoint (or
alert();) these handlers ?
If you want to show an activity icon, there's also a "global" way of doing
this:
// Show Ajax progress indicator
var myGlobalHandlers = {
onCreate: function() {
$('ajaxworking').style.visibility = 'visible';
},
onComplete: function() {
$('ajaxworking').style.visibility = 'hidden';
}
};
Ajax.Responders.register(myGlobalHandlers); // Register
the handlers for content update
And if you need a spinner...
http://www.napyfab.com/ajax-indicators/
The only comment I have on the code you've written, is sometimes I need to
.bind(this) to the event handlers: e.g., OnComplete: showBusy()... Oops,
there's the problem. You didn't include parens to invoke your handler.
Sam
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Re: [Rails-spinoffs] Drag'n'drop DOM elements between (I)FRAMEs
I have *heard* of people doing this by using the parent window to store and mediate state between the 2 child iframe windows. So when a drag was in progress, and the mouse coord reached the edge of the iframe window, you would notify the other iframe to start listening for mouseover events and create the illusion of a seamless "drag". But I've never actually seen it done - and as you can imagine it would be prone to all kinds of problems with missed events. Also, it should go without saying that all partipating documents would have to be under the same domain. Sam -i-am Quoting Lindsey Simon <[EMAIL PROTECTED]>: No, you cannot do that. Dragging into window instances across others should not allow this for security reasons anyhow. It would be cool though, as then you could drag draggables from one window to another. This has nothing to do with Mozilla Firefox. ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Ajax - Inserting selected elements from request.responseText
Title: Message
After retrieving a
URL using an Ajax.Request...
function onComplete
(request, json) {
//
request.responseText holds the entire page
Only the
content contained in elementID = 'source' is intended for
display
At this time, the
following code works, but it disturbingly copies the entire page from
the source URL into the target DIV
$('target').innerHTML = request.responseText; // copy the entire page
$('target').innerHTML = $('source').innerHTML; // remove everything bur
the content of element 'source'
Any suggestion for a method to copy only
the innerHTML of 'source' ?
Sam
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RE: [Rails-spinoffs] Re: Ajax - Inserting selected elements fromrequest.responseText
Sam wrote:
> After retrieving a URL using an Ajax.Request...
>
> function onComplete (request, json) {
> // request.responseText holds the entire page
>
> Only the content contained in elementID = 'source' is intended for display
>
> At this time, the following code works, but it disturbingly copies the
> entire page from the source URL into the target DIV
>
> $('target').innerHTML = request.responseText; // copy the entire page
> $('target').innerHTML = $('source').innerHTML; // remove everything bur
> the content of element 'source'
>
> Any suggestion for a method to copy only the innerHTML of 'source' ?
Mark wrote:
>You'd probably have to use Javascript's regular expression matching
>to extract the section of the page text string that's inside the tag
>having the id="source" attribute.
Ack! I was hoping I could manipulate the incoming stuff with more of an
"out of " experience.
oMyDiv = document.createElement('div'); // this div isn't attached to the
dom
oMyDiv.innerHTML = request.responseText ; // Stuff the external page URL
into this DIV
// hocus pocus...
$('target').innerHTML = oMyDiv.getElementByID('source').innerHTML ; // in
your dreams
My understanding is that until the incoming 'source' HTML is attached to the
DOM, it stays as HTML and isn't OO. If this is right, then yes, I'd need a
regEx.
I'm off to the regEx forum for assistance. This problem is what regEx was
created for. Anyone have a regEx to pull the content of element 'source'
out of a page?
Thomas - thanks for your comments. I'm stuck reading html from a
non-scripting server, so I've got to do this the hard way, but thanks.
Sam
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RE: [Rails-spinoffs] Re: Ajax - Inserting selected elementsfromrequest.responseText
Mark wrote: >If your problem is not speed, but having the whole page flash briefly, you >can use this method within an invisible div (div.style.display = 'none'). Good question. I think the answer is: "it bothers me". I know that sounds bad, but I could be influenced into not caring. I see no performance hit, no flash, and I test in several browsers: FF, IE, Safari. It bothers me to be stuffing DOCTYPE, into a div contained in an already well-formed DOM. It seems like something bad *should* happen, but nothing has (yet). If anyone can confirm that this is a regular practice and I shouldn't worry about it, I think I could walk away from this problem. BTW: I don't want to use an iFrame to hold the document. I'm trying to keep the page frameless. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] iframe ... does it have an innerHTML ?
Title: Message If I dynamically create a hidden iframe, how could I add a document in a string to that element? e.g., var sDocument = 'Hello world.'; I've tried several variations of appendChild, innerHTML, document.innerHTML, createTextNode. Argh! ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] iframe ... does it have an innerHTML ?
Title: Message Important to remember that using document.open/close/write from _javascript_ during non-loading period will cause the current document context to reset, meaning you lose what was previously there. - var iFrame = document.createElement(‘IFRAME’); - iFrame.src = "" //pretty sure you don’t need this - iFrame.contentWindow.document.body.innerHTML = “blarrr”; - iFrame.contentWindow.document.body.innerHTML += “more BLAR”; resetting the context of the enclosing body? This means reloading an iframe will ... fire a body onload event or what? are you sure it doesn't reset the context of the iframe alone? (hopeful look) .. so using innerHTML avoids the context reset altogether... thanks Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] iframe ... does it have an innerHTML ?
Title: Message
Lets go
to www.google.com
In the
URL/address bar, clear any text there.
Type: _javascript_:document.write(‘omg where did
google go’ );
Press
enter.
No
onload, but google is now gone!
--
Thanks. One last question to clean
up...
oMyDiv =
document.createElement('div');
document.body.appendChild(oMyDiv);
sMyText = 'Howdy! This is western
text!';
oMyDiv.innerHTML =
sMyText;
oMyText =
document.createTextNode(sMyText);
oMyDiv.appendChild(oMyText);
Does one method of adding innerHTML have benefits /
features that the other does not?
Sam
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RE: [Rails-spinoffs] iframe ... does it have an innerHTML ?
Title: Message My use of innerHTML was only offered just in case he was going to be adding multiple strings to the IFRAME not knowing that using document.write clears the previously outputted text. I was hoping to head off future problems with the same issue for a developer new to _javascript_. Your solution is truly a correct solution too. I was just trying to help the new guy. The new guy appreciates your help... Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Event.observe for href
I'd like to have an onclick triggered by a href, but since href's don't have id's, how do I use the Event.observe syntax with an href? Just put an ID on the href. It's allowed. ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Looking for Javascript IDE
Title: Message Do any of these IDE environments have built-in FTP which will move "modified" files to the remote site? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Ajax.Request abort question
Title: Message im using an Ajax.Request to hit a java servlet and do some processing. during this time, if the user feels the process is taking too long, he/she can hit a cancel button to kill the request... by calling the abort function off of the transport, will that kill the processing that my server is doing as well or just make the client think that the process has ended? right now i cant seem to get the servlet to stop processing even though the abort method has been called, im starting to think the abort method isnt the magic bullet that i was lazily hoping for can anyone help me out? - I haven't had to do anything like this (yet), so I am not much help, but I will be interested in following this thread. On this note, I have no idea if server-side SQL scripts are aborted if a user hits the "stop" button on a browser before the page is fully loaded. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Ajax.Updater
Title: Message
Good
point. I had stayed away from this thread, but I was wondering why this
alternative wasn't considered:
Add an
HTML comment to the responseText (the content), e.g.,
(It
could even be the first line)
Any
condition (string, numeric or both) could tell the client-side a message without
mucking with the Http conditions, which are tricky enough as they
are.
Maybe
the content is XML? Add an XML element that describes the
condition... I suppose it depends heavily on the type of data
stream... perhaps modifying the http in (some) situations is
correct.
BTW: I've observed that when onFailure is called, onComplete is
called immediately after. I was surprised, and it changes what
processing is expected in each handler.
Sam
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Martinez, AndrewSent: Thursday, June 29, 2006 8:54
AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: RE:
[Rails-spinoffs] Ajax.Updater
I don’t mean to hijack the thread. I might
possibly be misunderstanding Il Neofita’s intentions with positive/negative
feedback. Just for clarifications here are the two meanings I can
see:
1) The Ajax
operation was being used to send data to the server, the server would return a
true/false value based upon that data that was computed server
side.
2) The Ajax
operation was being attempted and the positive/negative feedback is being used
to determine if the server is present, not present, or if the request failed due
to some other network related problem.
Now, if we are in situation #1, is it
really a good idea to use HTTP response failure headers, thus triggering the
onFailure event, to signify an invalid computational value? Won’t we then lose
the ability to tell if the serer is simply not present? I would imagine it would
be better for the server to send response text back to the client that signifies
a failure. Reserving error responses for situation 2, when we really need to
know that the Ajax request isn’t being computed as a failure, it just isn’t
reaching the server properly.
Unless situation #2 is what Il Neofita’s
intention the entire time, then I am sorry to waste time.
There is of course another situation, where
I am completely misunderstanding the importance of
onFailure…..
-Andrew Martinez
-Original
Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Il
Neofita
Sent: Thursday, June 29, 2006 4:08
AM
To:
rails-spinoffs@lists.rubyonrails.org
Subject: Re: [Rails-spinoffs]
Ajax.Updater
Thank you, now everything is
clear.
On 6/29/06, Thomas Fuchs
<[EMAIL PROTECTED]> wrote:
A HTTP server returns a HTTP status code
with every answer. The Ajax.Request object knows
about this, and will execute the onSuccess
function only if a non-error status code was returned
(normally "200 OK"). You can also fine-tune
this by using the various methods described on
the Wiki page Martin
mentioned.
Note that your server-side web development
framework should allow you to set these status
codes. What do you use on the
server?
For more info about this, see
http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html .
-Thomas
Am 28.06.2006 um 18:41 schrieb Il
Neofita:
I cannot understand something
with declaring this object new Ajax.Request
I will request the page /my/url
however, on the server side, how should
look the files? I canno tunderstand how can I give a positive o negative
feedback
Thank you and sorry for these basic
question
On 6/28/06, Martin Ström
<[EMAIL PROTECTED] > wrote:
Something like this should do it:
new Ajax.Request("/my/url", {
asynchronous:
true,
onSuccess: function(r)
{
$("myDiv").innerHTML = "updated!
new contents " + r.responseText;
},
onFailure: function(r)
{
alert("failed!")
}
})
See the docs (
http://wiki.script.aculo.us/scriptaculous/show/Ajax.Request ) for more
info
Ciao
Martin
On 6/28/06, Il Neofita <
[EMAIL PROTECTED]> wrote:
Hi Andrew,
I am not so good in Java, can you send me a
basic example.
Thank you
On 6/28/06, Martinez, Andrew <
[EMAIL PROTECTED]> wrote:
Don't use Ajax.updater. Use the regular
Ajax object and then pass in your own onSuccess function handler/function
pointer/functor. The handler/pointer/functor will receive the response test in a
HTTP request object and you can evaluate it there.
-Andrew Martinez
-Original
Message-
From:
[EMAIL PROTECTED] [mailto:
[EMAIL PROTECTED] On Behalf Of Il
Neofita
Sent: Wednesday, June 28, 2006 10:49
AM
To:
rails-spinoffs@lists.rubyonrails.org
Subject: [Rails-spinoffs]
Ajax.Updater
Hi,
someone can help me, I am ot able to find
the way how to user Ajax.updater to test if the request give some positive or
negat
RE: [Rails-spinoffs] Ajax.Request synchronization (onSuccess beforeonComplete?)
Title: Message Not sure if (2) is suggesting overlapping execution, but onComplete will be called after your onSuccess handler exits. Sam -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hirn, JosephSent: Friday, June 30, 2006 10:34 AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: [Rails-spinoffs] Ajax.Request synchronization (onSuccess beforeonComplete?) 2 questions regarding the synchronization of these events. 1) is onSuccess called before onComplete ( I assume it is) 2) if called after, is onComplete called after the onSuccess method has completed or are you at the mercy of synchronization issues? Hopefully someone can enlighten me. I tried reading the Prototype.js but couldn’t seem to determine this on my own. ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] javascript woes with radio button groups
If all else fails, setup a 100ms periodic timer event handler. Loop thru the radio buttons, and you can decide when to move on from there. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] iframe ... does it have an innerHTML ?
Title: Message And here is the kicker: - In IE only: if you use innerHTML there is a 1ms-100ms lag between the DOM tree/DOM nodes being updated with your new HTML. However it is instantly visible to the user. I have been using innerHTML to insert Ajax retrieved content and applying observers to that content using EventSelectors without any problem. But I'd like to be safe. Is there a safer way to know when the DOM tree is ready before applying observers ? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Firefox Progress Indicator
Title: Message Firefox has a page-load progress indicator in the bottom right of the status bar. Why would it flash briefly when I hover over my navigation links? there is an onMouseOver event which changes the image, so I guess that's a page-load progress. It seems like a new side-effect. I think I would have seen it before. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Text sizing
Title: Message
I've had to worry
about how different browsers render different screen sizes for text for
years. I don't want to use "px" for font-size as IE will cripple the
browsers "VIEW, Text Size" control. We need to keep the text-size browser
control fully operational for accessibility and usability. At the same
time, we want text-laden pages to render "approximately" the same across all
browsers on page load, normal text-viewing-size.
My reference on the
subject has been the work of Owen Briggs:
http://www.thenoodleincident.com/tutorials/box_lesson/font/index.html
This work gets
close, but for my purposes, it could be improved. Firefox will always
renders text noticeably larger than IE and these are the two most
significant browsers in our user base. The page layouts differ more than I
would like.
Using _javascript_, it
might be possible to get a better match in IE and Firefox text-size
by detecting the browser type and setStyle on the body {font-size:
value} to a browser-specific setting such that the "normal" rendering size was
the same across all browsers.
Before I go off and
invent the wheel again; has anyone seen anything like this done
elsewhere?
Sam
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RE: [Rails-spinoffs] Text sizing
It's been a while since I've researched pts, but I had to toss them years
ago. Something about browser differences in rendering pts.
IE will fix fonts when px are used. It's out.
Seems like ems or % are the available choices, but no setting will give you
what you want / need.
Which is why I'm thinking there ought to be a JavaScript to do the job.
I'll look around for one, then try to write one if nothing is out there.
Sam
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Andrew
Kaspick
Sent: Wednesday, July 05, 2006 1:49 PM
To: rails-spinoffs@lists.rubyonrails.org
Subject: Re: [Rails-spinoffs] Text sizing
I didn't see any reference to using pt for fonts. I use pt for most
of my fonts and sizes seem the same across browsers. Is there some
big bad reason for not using pt for fonts that I'm unaware of?
On 7/5/06, Sam <[EMAIL PROTECTED]> wrote:
>
>
>
> I've had to worry about how different browsers render different screen
sizes
> for text for years. I don't want to use "px" for font-size as IE will
> cripple the browsers "VIEW, Text Size" control. We need to keep the
> text-size browser control fully operational for accessibility and
usability.
> At the same time, we want text-laden pages to render "approximately" the
> same across all browsers on page load, normal text-viewing-size.
>
> My reference on the subject has been the work of Owen Briggs:
>
> http://www.thenoodleincident.com/tutorials/box_lesson/font/index.html
>
> This work gets close, but for my purposes, it could be improved. Firefox
> will always renders text noticeably larger than IE and these are the two
> most significant browsers in our user base. The page layouts differ more
> than I would like.
>
> Using JavaScript, it might be possible to get a better match in IE and
> Firefox text-size by detecting the browser type and setStyle on the body
> {font-size: value} to a browser-specific setting such that the "normal"
> rendering size was the same across all browsers.
>
> Before I go off and invent the wheel again; has anyone seen anything like
> this done elsewhere?
>
> Sam
> ___
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>
>
>
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RE: [Rails-spinoffs] Text sizing
I wrote a test scrip which I've included below. I was curious how Firefox
and IE handled default text sizes and the user changing the text size.
Here's the beef:
Default font sizes: Firefox 18px, IE 16pt. This amounts to about 2px of
difference in the defaults No percentage, e.g., body {font-size:76%} will
ever make IE and Firefox identical only closer.
Setting the css body {font-size: 12px} or {font-size: 12pt} will cause IE to
disable the browser's "View Text Size" control. I guess this is why
percentages are preferred over px/pt in CSS-only solutions. (Crippling the
view text-size reduces the accessibility for persons with poor vision, or
unusual monitor resolutions.).
Some good news:
Setting body {font-size:12px} (or any fixed size) will set both IE and
Firefox identical display sizes. To avoid diminishing the accessibility, a
user control should be provided on the page to increase or decrease the
font-size for IE. This is the path I am planning to take since there are no
other effective solutions.
I'm trying to decide if a slider or some other UI mechanism e.g. plus (+)
and minus(-) controls might be better or more obvious.
Sam
http://www.w3.org/TR/html4/loose.dtd";>
Untitled Document
body {
font-family:Arial, Helvetica, sans-serif;
}
getStyle('body', 'font-size')=
$('getstyle').innerHTML = Element.getStyle('body', 'font-size');
var sTable = '\n<table id="mytable" border="0" cellspacing="0"
cellpadding="0" style="margin-left:50px;">';
for (var i=8; i < 20; i++) {
sTable += '\n <tr><td align="right" style="font-size:' +
i.toString() + 'px">' + i.toString() + 'px [</td><td align="left">] ' +
i.toString() + '</td>';
sTable += '<td align="right" style="font-size:' + i.toString() +
'pt">' + i.toString() + 'pt [</td><td align="left">] ' + i.toString() +
'</td></tr>';
}
$('mydiv').innerHTML = sTable + '\n</table>';
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RE: [Rails-spinoffs] Re: Text sizing
I'm not sure I understand this rational. It seems like the correct method for making a font the same size across all browsers is to used a fixed font size (px or pt). Under these situations IE is not accessible. This to me seems like a fine situation and no additional user control should be needed. The fault is in IE not your web page. Good point, but I develop web pages for customers who require accessibility in the contract. IE is part of the mix of browsers. I have to chop stones in the pit the way I'm told. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Text sizing
> Default font sizes: Firefox 18px, IE 16pt. This amounts to about 2px of
> difference in the defaults
> Setting body {font-size:12px} (or any fixed size) will set both IE and
> Firefox identical display sizes. To avoid diminishing the accessibility,
a
> user control should be provided on the page to increase or decrease the
> font-size for IE.
> I don't quite get it. Why do you care about the 2px difference at all?
> Your design is scalable (I assume this from the fact that you want to
> use a font-resize control) and will look good in both cases.
I'll try to answer as best I can, correct a mistake I made, and mention
another hack solution I came up with.
The point (of not controlling default font sizes) has been argued quite a
bit over the years. At my company, we're all about designing fluid layouts.
Most of my work is exactly that. The 2px difference is normally not a
factor. I have a couple of instances where the 2px becomes an annoyance.
One is a customer who *requires* a fixed 800x600 layout. No vertical
scrolling. We design the text to fit and if the user increases the
font-size because he wants larger text... well, he will get scrolling and
that's OK.
We design content for this fixed layout , then test in Firefox and get a
surprise vertical scroll (in normal text view). The Firefox 2px is just
enough to push it over the edge.
This isn't a major problem, but it does seem like one that should be
controllable. It would eliminate surprises, and unneeded revisions if the
difference were not present.
I may have a solution.
--
I have a type-o above--- IE default is 12pt, which is almost exactly 16px.
Interesting that IE uses pts, every other browser I've queried using
getStyle shows px...
Every other browser I tested, Opera, Netscape, default to 16px.
Firefox default is 18px.
The hack-fix I had in mind was to continue to use percentages, but adjust
for Firefox as follows...
Body {font-size: 75%} // places browsers with 16px defaults to 12px (Opera,
IE, Netscape)
Body {font-size: 66%} // places Firefox with 18px default to 12px
It takes a couple of lines of JavaScript to set the Body Font-size
accordingly, but the results are very close. The View Text-Size works well
too, (in all browsers) keeping the accessibility in place.
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RE: [Rails-spinoffs] Re: Text sizing
Title: Message
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ryan
GahlSent: Friday, July 07, 2006 9:58 AMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs] Re:
Text sizing
A hack is nothing more than a creative solution, albeit short term and
subject to breaking under the changing terms of future environments. But, then
you as the creative solution engineer just find the new solution, always looking
for the possibility of a more long term fix but not afraid to resort to black
magic, general hackery, and other types of mysterious foo. -Ryan Gahl,
2006
This
is my hack, and I'm sticking to it...
</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#ff size=2><SPAN class=234474315-07072006>body
{</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#ff size=2><SPAN class=234474315-07072006>
font-size: 76%;</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#ff size=2><SPAN class=234474315-07072006>
}</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#ff size=2><SPAN
class=234474315-07072006>
if
(navigator.userAgent.indexOf('Firefox') > -1) {document.body.style.fontSize =
'66%';}
If
anyone can shorten it a bit, thanks in advance.
Sam
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[Rails-spinoffs] What effect is this
Title: Message Script aculo has a "grow" effect, but can it do the following and if not is there a prototype.js add-on that will? I'd like to have an icon in the header / footer of a page which when clicked, would be the source point for a window to "grow" and expand until centered in the display. Can "grow" do this with the right positioning? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] prototype hash method
Title: Message
Is it
easy to explain the difference between a hash
var
myHash = {a: 'value for a'}
and an
object
var
myObject = {a: 'value for a'}
Sam
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RE: [Rails-spinoffs] prototype hash method
Sam wrote:
> Is it easy to explain the difference between a hash
>
> var myHash = {a: 'value for a'}
>
> and an object
>
> var myObject = {a: 'value for a'}
There is no difference between those. They are both associative arrays
(hashes).
---
Since prototype.js has Object and Hash methods, maybe my question should
have been something like: "What is the reasoning behind why prototype
offers different properties and methods for Hash and Object types?"
Sam
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[Rails-spinoffs] Making HTML display-able on a page
Title: Message For error reporting purposes, I'd like to take the data returned from an Ajax call, which should contain HTML, and display that HTML in an error reporting page. Does prototype.js have a method which will convert an HTML string to display format? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Hiding an event to launch a debug window
Title: Message I'd like to leave some debug code on a website, the debug window made visible with an onClick event on some object, but requiring CTRL-ALT or some combination to be held down. Is it possible to check state of keyboard keys in an onClick handler, or can anyone suggest some other technique which casual visitors would not stumble upon? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Hiding an event to launch a debug window
Title: Message I appreciate your help. I'm still at a loss. Let me ask again with specifics. I had in mind adding an onClick event handler to an image. I wasn't able to field keypress events on the image (if I ) and I was wondering if I could interrogate the CTRL and ALT keys during the onClick event? Sam Sure can... inspect the event object... i forget the exact names of the properties you want, but http://www.w3schools.com is great for looking this stuff up...and instead of Ctrl Alt, might i suggest something harder to guess, like: up, up, down, down, left, right, left, right, b, a, select, start? Oops, maybe you're not making AjaxContra, huh? :-O On 7/10/06, Sam <[EMAIL PROTECTED]> wrote: I'd like to leave some debug code on a website, the debug window made visible with an onClick event on some object, but requiring CTRL-ALT or some combination to be held down. Is it possible to check state of keyboard keys in an onClick handler, or can anyone suggest some other technique which casual visitors would not stumble upon? Sam___Rails-spinoffs mailing listRails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Hiding an event to launch a debug window
Title: Message I appreciate the posts and regret requesting what is obvious to many, but I wasn't sure what was meant by "this stuff" below. Sam -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ryan GahlSent: Monday, July 10, 2006 10:04 PMTo: rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs] Hiding an event to launch a debug windowSure can... inspect the event object... i forget the exact names of the properties you want, but http://www.w3schools.com is great for looking this stuff up...and instead of Ctrl Alt, might i suggest something harder to guess, like: up, up, down, down, left, right, left, right, b, a, select, start? Oops, maybe you're not making AjaxContra, huh? :-O On 7/10/06, Sam <[EMAIL PROTECTED]> wrote: I'd like to leave some debug code on a website, the debug window made visible with an onClick event on some object, but requiring CTRL-ALT or some combination to be held down. Is it possible to check state of keyboard keys in an onClick handler, or can anyone suggest some other technique which casual visitors would not stumble upon? Sam___Rails-spinoffs mailing listRails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Hiding an event to launch a debug window
Title: Message
Thanks. I appreciate your response and acknowledge that this
question was too off-topic for this forum.
Sam
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Justin McCormackSent: Tuesday, July 11, 2006 10:49
AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: RE:
[Rails-spinoffs] Hiding an event to launch a debug
windowI recently wanted to do something similar with
showing a debug output DIV. Here's my code:var BugTool =
Class.create();BugTool.prototype = { element: null,
initialize: function(element, options) { this.element =
$(element); Event.observe(document, "keyup",
this.onKeyUp.bindAsEventListener(this), false); },
onKeyUp: function(e) { if(ev.ctrlKey &&
ev.shiftKey && ev.keyCode == 66) { //
Ctrl+Shift+B Effect.toggle(this.element,
"appear"); } }}might be of some
use
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RE: [Rails-spinoffs] Re: Documenting Prototype...
Before I voice my view (from the bottom), let me say I've developed an application which uses prototype.js, script aculo, and the "windows" extension. I've also made use of Event Selectors and the "debug.js" which is offered by the "windows" group. I have an investment beyond academic interest. Our choice to develop with prototype.js resulted in a clean deliverable and a development time which exceeded (in a good way) my expectations. That said, I have concerns similar to others voiced in this thread. Prototype.js is still on a "pre" release 1.5 (unless I missed a release?), and I have never witnessed any participation from the developer. Instead, there is what appears to be a closed-door stance, resulting in zero-visibility conditions of upcoming releases. Worse, the lack of a "full" 1.5 release suggests prototype.js has been abandoned in some way, in the best case for 2.0 development, which has no announced beta date. This is a regretful set of circumstances given the satisfaction, and the investment I have in prototype.js. The author may surprise us with prototype.js 2.0, next week, next year, or not at all. (Does anyone know?) In the meantime, the persistent uncertainty in prototype.js support has led me to reluctantly look at the alternatives. I do not look forward to rewriting our application because the foundation library (prototype.js) has a lack of support. My confidence in prototype.js would improve if there were any developer interaction.. At a bare minimum, planned release dates would be a real confidence boost. Better yet, some interaction in this forum. No feedback, in addition to a languishing "pre" release, is unacceptable. Sam (C) ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Prototype.js extension libs
Title: Message Hope this isn't too OT or obvious. I'd like to know if there are useful prototype.js extensions beyond the list I've compiled. This is the list of complimentary software extensions which are based on prototype.js. Any others? Rico http://openrico.org/rico/demos.page?demo=rico_drag_and_drop_custom_draggable Event Selectors http://www.encytemedia.com/event-selectors/ Script Aculo http://script.aculo.us/ Window Class http://prototype-window.xilinus.com/ There's a collection of widgets here, but the coffee ring on the server is still a problem... more of a blog than a set of extensions... http://tetlaw.id.au/view/tags/query/tag/experiments/ Color Picker http://www.knallgrau.at/code/colorpicker/ Tool Tips http://boygeni.us/tooltips/ ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] XML Question
Title: Message I've got an XML file which is pretty well structured. I need to retrieve specific elements from that file to fill out empty HTML elements on a page. I think what I need is xPath? Or - is that overkill? Is there some easier way to locate an XML element? What I have in mind is pulling the XML file using Ajax, then xPath to get the bits I need. Am I on the right path and does prototype have an xPath capability? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] XML Question
Title: Message If this XML file isn't a DOCTYPE (not a html/body/tag document), should I expect Ajax responseXML to build out an xml-doctree or should I move on to xPath? Sam -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kjell BublitzSent: Monday, July 24, 2006 11:37 AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs] XML Questionhumm.. as far as i know if your server delivers an XML file as text/xml or something similar then Ajax.request will fill responseXML which contains the xml-doctree. With that you can use the common DOM functions to wade through all the data and then fill your elements as you like. Hope this helps. 2006/7/24, Sam <[EMAIL PROTECTED]>: I've got an XML file which is pretty well structured. I need to retrieve specific elements from that file to fill out empty HTML elements on a page. I think what I need is xPath? Or - is that overkill? Is there some easier way to locate an XML element? What I have in mind is pulling the XML file using Ajax, then xPath to get the bits I need. Am I on the right path and does prototype have an xPath capability? Sam___Rails-spinoffs mailing listRails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] IE 7 to be a mandatory update
Title: Message http://news.com.com/Microsoft+tags+IE+7+high+priority+update/2100-7350_3-6098500.html?tag=nefd.lede Is anyone testing rails, script and other suites on the IE 7 platform? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] New Microsoft IDE
Title: Message Has anyone here evaluated Microsoft Expressions as a possible development IDE? http://www.microsoft.com/products/_expression_/en/default.mspx I haven't looked at the JS support beyond noticing that JS code is lightly color-coded, but on the surface, it has some features I consider mandatory for web development (e.g., templates). Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] New Microsoft IDE
Title: Message I'm not as quick to discard Expressions as an enhanced FrontPage. (I've nothing positive to say about FP). My interest is in finding an IDE that offers specific features. The webs we develop are instructional and usually have between 50 to 100 pages. I put a high value on HTML page templates which both Dreamweaver and this new MS Expressions both support. I am dissatisfied with Dreamweaver performance in a few areas and am looking for any alternative which won't sacrifice what have become key IDE features to our web development method. There are other IDEs which have superior depth in other areas, but I'm not aware of any which support HTML page templating. I wonder why HTML page templates aren't available in more IDEs? A couple of other features which I place a high (but not mandatory) value on include: FTP, SFTP and remote / local file synchronization (a feature to identify which files have been revised). It's convenient to PUT or GET a file directly from the IDE, especially when the file must be tested from a server-side environment. Icing on the cake is an integrated checkin/checkout so multiple developers can work on the same website. Better would be integrated source control. There are many other features are important in an IDE but there are many IDEs to choose from which offer these features. HTML page templates, not so many choices. Sam -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ryan GahlSent: Thursday, July 27, 2006 10:08 AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs] New Microsoft IDELooks like nothing more than an updated FrontPage with some Dreamweaver-esque candy. MS tools are extremely good when it comes to backend development (in terms of ease of use, extensibility, and developer productivity)... but I doubt they will be able to make any headway as a design tool provider. Then again, it's MS, anything they send to market will be profitable just based on sheer numbers. On 7/27/06, Sam < [EMAIL PROTECTED]> wrote: Has anyone here evaluated Microsoft Expressions as a possible development IDE? http://www.microsoft.com/products/_expression_/en/default.mspx I haven't looked at the JS support beyond noticing that JS code is lightly color-coded, but on the surface, it has some features I consider mandatory for web development (e.g., templates). Sam ___Rails-spinoffs mailing listRails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] XML Question
Title: Message
... is
the responseXML below available only in Mozilla? I get nada in
IE.
Sam
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Kjell BublitzSent: Monday, July 24, 2006 4:19 PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs]
XML QuestionI don't understand your question right, but
in some ways this understanding seems to be correct. Have you just tried
to request the xml document with the ajax class and had a look into
responseXML ?Here is how i do it. (copied from my recent project):
new Ajax.Request(tplpath + 'system/workdir/blocks.xml',
{
method:'get',
requestHeaders:['cache-control','no-cache','pragma','no-cache'],
onComplete:function(xmlresult)
{
if( xmlresult.responseXML.firstChild.nodeName == 'bloxpress') { // check if
first child is as
expected
Bloxpress.blocksParse(xmlresult.responseXML); // pass the responseXML to a
function
} else {
var blockMenuDiv = Builder.node('div', {id:'contentmenu',
style:'display:none'},['No Blocks
available']);
$(blockMenuTarget).appendChild(blockMenuDiv);
Bloxpress.blocksMenu =
$('contentmenu');
}
} });
2006/7/24, Sam <[EMAIL PROTECTED] >:
If this XML file isn't a
DOCTYPE (not a html/body/tag document), should I expect Ajax responseXML to
build out an xml-doctree or should I move on to
xPath?
Sam
-Original
Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On
Behalf Of Kjell BublitzSent: Monday, July 24, 2006 11:37
AMTo: rails-spinoffs@lists.rubyonrails.orgSubject:
Re: [Rails-spinoffs] XML Questionhumm.. as far as i
know if your server delivers an XML file as text/xml or something similar
then Ajax.request will fill responseXML which contains the xml-doctree.
With that you can use the common DOM functions to wade through all the
data and then fill your elements as you like. Hope this
helps.
2006/7/24, Sam <[EMAIL PROTECTED]>:
I've got an XML file which is pretty
well structured. I need to retrieve specific elements from that
file to fill out empty HTML elements on a page.
I think what I need is xPath?
Or - is that overkill? Is there some easier way to locate an XML
element?
What I have in mind is pulling
the XML file using Ajax, then xPath to get the bits I
need.
Am I on the right path and does
prototype have an xPath capability?
Sam___Rails-spinoffs
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RE: [Rails-spinoffs] XML Question
Title: Message
Thanks
(a lot! ). I've had to rule out including a 100Kb xPath.js library.
Maybe this lib is a better solution.
I
diagnosed the problem with IE responseXML - if the file isn't served "up" as
text/xml, IE doesn't make responseXML available. (I was testing on my
local hard-disk / no server). Posting to a server solves this
problem. I can (will) live with that.
Sam
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Hill, GregSent: Friday, July 28, 2006 1:37 PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs]
XML Question
No, it’s
available. You might have to say responseXML.documentElement (not sure,
but I always do and it works). Oh, and you could try changing ‘get’ to
‘post’. I’ve always had moderate to bad success in IE with ‘GET’
requests on Ajax. Even with no arguments, sometimes
IE just chokes on ‘GET’. Haven’t really researched why it does that, but
‘POST’ has fixed it in every case.
If you look through
the archives, I posted a script that takes an xml document and parses it into
a nested _javascript_ hash, for quick and easy access to nested tags in
JS. Might be useful to you, might not.
Source is
here:
http://greg.kathihill.com/content/jbhv/web/default/js/xml_doc.js
It doesn’t handle
every type of XML tag, so you might need to expand it to cover
more.
Example of
usage:
show: function (response) { var xmlDoc = new XMLDoc(response.responseXML.documentElement); var results = xmlDoc.asHash(); if (results.found && results.found.length > 0) { // any tags are included in this array, it’s always an array, even if it has just one element // attributes and text-only nodes are included as text, so results.found[0].id could be: // or 1 } }
Anyhoo, if that
helps, use it. If it doesn’t, then bugger off J I find it
simplifies a lot of code for me.
Greg
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of SamSent: Friday, July 28, 2006 11:17
AMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs] XML
Question
... is the
responseXML below available only in Mozilla? I get nada in
IE.
Sam
-Original
Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Kjell BublitzSent: Monday, July 24, 2006 4:19
PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs] XML
Question
I don't understand your question right,
but in some ways this understanding seems to be correct. Have you just
tried to request the xml document with the ajax class and had a look into responseXML
?Here is how i do it. (copied from my recent project): new
Ajax.Request(tplpath + 'system/workdir/blocks.xml',
{
method:'get',
requestHeaders:['cache-control','no-cache','pragma','no-cache'],
onComplete:function(xmlresult)
{
if( xmlresult.responseXML.firstChild.nodeName == 'bloxpress') { // check if
first child is as
expected
Bloxpress.blocksParse(xmlresult.responseXML); // pass the responseXML to a
function
} else {
var blockMenuDiv = Builder.node('div', {id:'contentmenu',
style:'display:none'},['No Blocks
available']);
$(blockMenuTarget).appendChild(blockMenuDiv);
Bloxpress.blocksMenu =
$('contentmenu');
}
}
});
2006/7/24, Sam <[EMAIL PROTECTED]
>:
If this XML file
isn't a DOCTYPE (not a html/body/tag document), should I expect Ajax responseXML to
build out an xml-doctree or should I move on to
xPath?
Sam
-Original
Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Kjell
BublitzSent: Monday,
July 24, 2006 11:37 AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs] XML
Question
humm.. as far
as i know if your server delivers an XML file as text/xml or something
similar then Ajax.request will fill responseXML which contains the
xml-doctree. With that you can use the common DOM functions to wade
through all the data and then fill your elements as you like. Hope
this helps.
2006/7/24, Sam <[EMAIL PROTECTED]>:
I've got an XML file which is
pretty well structured. I need to retrieve specific elements fro
RE: [Rails-spinoffs] XML Question
Title: Message Greg, OK, there's objects in objects. Nice... For debugging purposes, what's the simplest way to convert the entire returned object to a string for inspection? Sam -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Hill, GregSent: Friday, July 28, 2006 1:57 PMTo: rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs] XML Question Well, I’m sure xPath is a lot more flexible, but holy crap is that a lot of code. As I said, mine is limited, but serves my purposes very well. And it’s generic enough for anyone to use, although it only handles node types 1 to 3. Anything beyond that will be ignored (or possibly break it, I haven’t tested it thoroughly against other node types). http://www.devguru.com/Technologies/xmldom/quickref/obj_node.html#types (node type information) Greg From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of SamSent: Friday, July 28, 2006 11:43 AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs] XML Question Thanks (a lot! ). I've had to rule out including a 100Kb xPath.js library. Maybe this lib is a better solution. I diagnosed the problem with IE responseXML - if the file isn't served "up" as text/xml, IE doesn't make responseXML available. (I was testing on my local hard-disk / no server). Posting to a server solves this problem. I can (will) live with that. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] innerText idea??
Any info on how good/bad/ugly is the cross-browser support for: var sText = obj.innerText || obj.textContent; Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] requestHeaders: ['cache-control', 'no-cache', 'pragma', 'no-cache'],
Ajax.Request ... does requestHeaders: ['cache-control','no-cache','pragma','no-cache'], apply to both GET and PUT operations? Can I ensure a page I retrieve will not be cached by the browser using Ajax.Request, GET? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Parsing Querystring
Is there a function somewhere which will take a string containing a URL and return an object with all the querystring key / value pairs? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] requestHeaders: ['cache-control', 'no-cache', 'pragma', 'no-cache'],
Thanks for the suggestion. I'll give it a
try.
Sam
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ryan
GahlSent: Wednesday, August 09, 2006 2:31 PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: Re: [Rails-spinoffs]
requestHeaders: ['cache-control', 'no-cache','pragma',
'no-cache'],
One sure fire way to prevent caching is to include a cache buster
in your request URL...var cacheBuster = "?" + new Date() * 1;var
url = "" + cacheBuster;...do Request...
On 8/9/06, Sam
<[EMAIL PROTECTED]>
wrote:
Ajax.Request
... does
requestHeaders: ['cache-control','no-cache','pragma','no-cache'],
apply to both GET and PUT
operations?
Can I ensure a page I retrieve will not
be cached by the browser using Ajax.Request, GET?
Sam
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RE: [Rails-spinoffs] Parsing Querystring
> There is one such function exactly: > > String.toQueryParams() > > var url = 'http://test.com/?this=test&perfect=true'; > var params = url.toQueryParams(); > I don't know how I missed this. I'm guessing I had "whole word" set in my editor search. Thanks, Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Prototype $$ Question
Take a look at this:http://img238.imageshack.us/img238/5752/prototypeselectorduplicatesld7.pngThe
image shows that $$ returns duplicates, is it supposed to do that, or is my
CSS/HTML wrong? I don't understand your image, but glancing at the
HTML, I can see that ID node_3_children satisfies $$('#tree .node
.nodeChildren') once for nodeID node_1, and again for nodeID
node_3.
Sam
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RE: [Rails-spinoffs] Prototype $$ Question
Funny... I don't know if you are not understanding me, or
if I am not understanding you...
I just reviewed your graphic, and I see at the bottom, the
output of $$ which exactly describes what I posted below. Maybe I wasn't
clear, and I apologies in advance that I'm about to write further on the same
thing.
Some nodes satisfy the criteria #tree .node .nodeChildren
more than once, and as a result, will be output more than once by the $$
function.
The node id node_3_children satisfies the criteria $('#tree
.node .nodeChildren') once for nodeID node_1, and once again for nodeID
node_3. The problem here is #tree .node .nodeChildren allows any
number of elements to appear between these attributes: e.g., there may be
3 , all of class .node, between #tree .node and
.nodeChildren. If you want to specify direct descendents only, you could
try $$('#tree > .node > .nodeChildren'), but I don't know if $$ supports
direct descendents. It probably does, but I've never had the
opportunity to test. In my experience, nothing works until you see
it work.
Another solution if you want the nodeChildren only once,
you could use $$('.nodeChildren') which will match each .nodeChildren only
once.
Sorry if I'm not understanding your concern. Maybe
someone else can clear up the confusion.
Sam
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Brian PeirisSent: Sunday, August 13, 2006 12:53
AMTo: rails-spinoffs@lists.rubyonrails.orgSubject: Re:
[Rails-spinoffs] Prototype $$ Question
yes, I expect $$('#tree
.node .nodeChildren') to return exactly those two elements, but
if you look along the bottom of the image where I've called $$('#tree .node .nodeChildren') in the _javascript_ Console you'll see that it returns
node_3_children
twice
On 8/13/06, Sam
<[EMAIL PROTECTED]>
wrote:
Take a look at this:http://img238.imageshack.us/img238/5752/prototypeselectorduplicatesld7.pngThe
image shows that $$ returns duplicates, is it supposed to do that, or is my
CSS/HTML wrong?
I don't understand your
image, but glancing at the HTML, I can see that ID node_3_children
satisfies $$('#tree .node .nodeChildren') once for nodeID node_1,
and again for nodeID node_3.
Sam___Rails-spinoffs
mailing listRails-spinoffs@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs-- Brian PeirisBrampton,
Ontario, Canada[EMAIL PROTECTED] or [EMAIL PROTECTED]
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RE: [Rails-spinoffs] Prototype $$ Question
> > Looks like a bug to me, Brian. I gave two examples of css selectors which ensure that the same node wouldn't be returned more than once. Seemed more productive than declaring the software broken. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Shorthand for "IN"
Somewhere in a
prototype extension library, I noticed a shorthand (can't find it now) for
testing whether an parameter is in a set of values.
The set was in an
object or an array (don't remember) and resulted in an easy
shorthand.
Maybe something
like:
function myFunc
(parm1) {
if( {2:2,
5:5, 9:9, 17:17}[parm1] ) { // Is parm1 equal to 2, 5, 9 or
17?
This seems more
verbose that what I recall.
What's a
good shorthand technique for testing whether a value is in a
set?
Sam
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RE: [Rails-spinoffs] XML Question
Title: Message
I've had my Ajax XML reader working for a week now.
Then I hit a snag late in the game (doesn't work in IE) explained by Dean
Edwards:
http://dean.edwards.name/weblog/2006/04/easy-xml/
Since request.requestXML.documentElement isn't available in
IE, I'm experimenting with using the requestXML and searching the tree using
getElementsByTagName.
I'm confounded by not being able to read the
element attributes. Here's a line of the XML:
request.requestXML.getElementsByTagName('Module')[0] //
this will locate
how to I get the value of
attr? It seems it should be
request.requestXML.getElementsByTagName('Module')[0].attr
// but it doesn't exist...
Any ideas?
Sam
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
SamSent: Friday, July 28, 2006 1:17 PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs]
XML Question
...
is the responseXML below available only in Mozilla? I get nada in
IE.
Sam
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Kjell BublitzSent: Monday, July 24, 2006 4:19
PMTo: rails-spinoffs@lists.rubyonrails.orgSubject: Re:
[Rails-spinoffs] XML QuestionI don't understand your
question right, but in some ways this understanding seems to be correct.
Have you just tried to request the xml document with the ajax class and
had a look into responseXML ?Here is how i do it. (copied from my
recent project): new Ajax.Request(tplpath +
'system/workdir/blocks.xml',
{
method:'get',
requestHeaders:['cache-control','no-cache','pragma','no-cache'],
onComplete:function(xmlresult)
{
if( xmlresult.responseXML.firstChild.nodeName == 'bloxpress') { // check if
first child is as
expected
Bloxpress.blocksParse(xmlresult.responseXML); // pass the responseXML to a
function
} else {
var blockMenuDiv = Builder.node('div', {id:'contentmenu',
style:'display:none'},['No Blocks
available']);
$(blockMenuTarget).appendChild(blockMenuDiv);
Bloxpress.blocksMenu =
$('contentmenu');
}
} });
2006/7/24, Sam <[EMAIL PROTECTED] >:
If this XML file isn't a
DOCTYPE (not a html/body/tag document), should I expect Ajax responseXML
to build out an xml-doctree or should I move on to
xPath?
Sam
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On
Behalf Of Kjell BublitzSent: Monday, July 24, 2006 11:37
AMTo: rails-spinoffs@lists.rubyonrails.orgSubject:
Re: [Rails-spinoffs] XML Questionhumm.. as far as i
know if your server delivers an XML file as text/xml or something
similar then Ajax.request will fill responseXML which contains the
xml-doctree. With that you can use the common DOM functions to wade
through all the data and then fill your elements as you like.
Hope this helps.
2006/7/24, Sam <[EMAIL PROTECTED]>:
I've got an XML file which is
pretty well structured. I need to retrieve specific elements
from that file to fill out empty HTML elements on a
page.
I think what I need is xPath?
Or - is that overkill? Is there some easier way to locate an XML
element?
What I have in mind is pulling
the XML file using Ajax, then xPath to get the bits I
need.
Am I on the right path and does
prototype have an xPath capability?
Sam___Rails-spinoffs
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[Rails-spinoffs] Inspecting an object
I have code and objects which work great in Firefox, and blow up in IE. I don't have an object inspector in IE comparable to Firefox's Firebug and am contemplating finding a function call to layout an object in text format so I could read it from my own debug console. I'm considering using a function to convert the object to JSON for display. What other solutions might be better? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] XML Question
Title: Message
After reading the replies to Dean's article http://dean.edwards.name/weblog/2006/04/easy-xml/
it turns out that IE does support requestXML.documentElement , at least, Dean
found that it did work after a while, but he doesn't explain what
changed.
To my complete amazement, it's working for me too. I
wish I knew why. Nothing has changed here.
Sam
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
SamSent: Sunday, August 13, 2006 10:29 PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs]
XML Question
I've had my Ajax XML reader working for a week now.
Then I hit a snag late in the game (doesn't work in IE) explained by Dean
Edwards:
http://dean.edwards.name/weblog/2006/04/easy-xml/
Since request.requestXML.documentElement isn't available
in IE, I'm experimenting with using the requestXML and searching the tree
using getElementsByTagName.
I'm confounded by not being able to read the
element attributes. Here's a line of the XML:
request.requestXML.getElementsByTagName('Module')[0] //
this will locate
how to I get the value
of attr? It seems it should be
request.requestXML.getElementsByTagName('Module')[0].attr
// but it doesn't exist...
Any ideas?
Sam
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
SamSent: Friday, July 28, 2006 1:17 PMTo:
rails-spinoffs@lists.rubyonrails.orgSubject: RE: [Rails-spinoffs]
XML Question
... is the responseXML below available only in Mozilla? I get
nada in IE.
Sam
-Original Message-From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Kjell BublitzSent: Monday, July 24, 2006 4:19
PMTo: rails-spinoffs@lists.rubyonrails.orgSubject:
Re: [Rails-spinoffs] XML QuestionI don't understand
your question right, but in some ways this understanding seems to be
correct. Have you just tried to request the xml document with the ajax
class and had a look into responseXML ?Here is how i do it.
(copied from my recent project): new Ajax.Request(tplpath +
'system/workdir/blocks.xml',
{
method:'get',
requestHeaders:['cache-control','no-cache','pragma','no-cache'],
onComplete:function(xmlresult)
{
if( xmlresult.responseXML.firstChild.nodeName == 'bloxpress') { // check
if first child is as
expected
Bloxpress.blocksParse(xmlresult.responseXML); // pass the responseXML to a
function
} else {
var blockMenuDiv = Builder.node('div', {id:'contentmenu',
style:'display:none'},['No Blocks
available']);
$(blockMenuTarget).appendChild(blockMenuDiv);
Bloxpress.blocksMenu =
$('contentmenu');
}
} });
2006/7/24, Sam <[EMAIL PROTECTED] >:
If this XML file isn't
a DOCTYPE (not a html/body/tag document), should I expect Ajax
responseXML to build out an xml-doctree or should I move on to
xPath?
Sam
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On
Behalf Of Kjell BublitzSent: Monday, July 24, 2006
11:37 AMTo: rails-spinoffs@lists.rubyonrails.orgSubject:
Re: [Rails-spinoffs] XML Questionhumm.. as far as
i know if your server delivers an XML file as text/xml or something
similar then Ajax.request will fill responseXML which contains the
xml-doctree. With that you can use the common DOM functions to wade
through all the data and then fill your elements as you like.
Hope this helps.
2006/7/24, Sam <[EMAIL PROTECTED]>:
I've got an XML file which is
pretty well structured. I need to retrieve specific elements
from that file to fill out empty HTML elements on a
page.
I think what I need is
xPath? Or - is that overkill? Is there some easier way
to locate an XML element?
What I have in mind is
pulling the XML file using Ajax, then xPath to get the bits I
need.
Am I on the right path and does
prototype have an xPath
[Rails-spinoffs] OK. I'm confused again.
Prototype.js can be humbling. Just when I think I've got a handle on how to
read inside-out, I find something I've never seen before and can't get my
head around.
I am chasing down a bug in my code which uses Element.classNames, so I
wandered off in prototype.js to see how classNames worked.
Contest: Explain clearly, with the fewest possible words, how this function
works:
Element.Methods = {
// other methods appear here
classNames: function(element) {
return new Element.ClassNames(element);
},
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RE: [Rails-spinoffs] Parsing Querystring
> Just out of curiousity Sam, I notice that you are a frequent poster to > this list. Are you writing anything specific or just having fun with > javascript and prototype? Anything you can show off here? > I'm working on an environment to host e-learning course content. Unfortunately I can't send a sample URL I'm pleased with prototype.js cross-platform support, 3rd party extensions, and speed of development. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
[Rails-spinoffs] Completely off-topic, so flame me
There's a lot of old-solutions to this problem lingering on Google, so it's difficult for me to determine if there's a more modern solution to this problem. A customer posted a complaint yesterday about how I'm coding href's when an onclick event is used and the href should not be used. It seems the complaint is that holding the shift key and clicking the link opens a new window pointing to _javascript_:void(0). Reminds me: Doctor, it hurts when I hit my head with this hammer... (don't hold the shift key and click might be a solution) href="" // I never do this href="" // this is what I do, but I read void(0) is deprecated over null? should I use something else? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: RE: [Rails-spinoffs] Completely off-topic, so flame me
Thanks everyone for your suggestions. I'm off to experiment. If I find anything useful, I'll post back. Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: RE: [Rails-spinoffs] OK. I'm confused again.
> It creates a new class/object representing the class names. The class > is called Element.ClassNames and it is extended by Enumerable. That > means you can iterate through the element's class names. Pretty cool. "Extended by Enumerable". Thanks. Now I know where to look. A good answer usually raises other good questions. It seems reasonable to post those questions back here, though I am doing so only to share my thoughts. I hope to dig up the answers myself. 1 - Is every object that is extended by Enumerable going to have iterable class names? 2 - Just how much "baggage" is too much in JavaScript? Prototype is adding *lots* of extra stuff to everything it touches. When does it become a problem? Will memory consumption become an issue, will CPU consumption go through the roof scanning hundreds of methods and properties on every object? ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Completely off-topic, so flame me
> Exactly that is also my problem. Oky not mine but also a > customer of mine > wants the shift click. > Statement: Shift click does the same as click but opens in new window" > Problem: I have some functionality that changes a area you could name > display-area. The customer now argues that he expects the > display-area in a > new window. My thoughts: - Thomas' statement: when onclick returns *false*, the href isn't taken. That solves many problems and I think was overlooked by critics of the href=# option. - href="#" won't go to the top of page if onclick returns false, however, href="javascript:void(0)" won't go anywhere no matter what the onclick event handler returns. - IE will open a window in any case if the SHIFT key is held down. I've found no way to suppress this, except perhaps href="javascript:window.close" ;-) (think of the downside to this) - Regarding the overuse of links to reach an event handler: I am one of those coders who overuses links for onclick items which do not need to be "links". I do this believing it will be better for a screen reader to understand. I may be off on this, but a screen reader "knows" a link is clickable. I'm not sure it knows an is clickable, especially if the onclick is assigned dynamically. - Regarding comments on designing links which behave well when JavaScript isn't enabled: Some webs (e.g., the stuff we write) are run completely wrapped in a JavaScript portal, a.k.a. "Learning Management System". Designing links to perform favorably if JavaScript isn't enabled don't apply to our development work. The entire LMS would not run if JavaScript were not enabled. ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
RE: [Rails-spinoffs] Completely off-topic, so flame me
I agree with the issues you describe below. These are real-world problems
when designing web pages for general audiences.
I doubt the inventors of "open in tab" and "open in new window" could
foresee these issues.
Sam
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Tom Gregory
> Sent: Wednesday, August 16, 2006 12:02 PM
> To: rails-spinoffs@lists.rubyonrails.org
> Subject: Re: [Rails-spinoffs] Completely off-topic, so flame me
>
> I think you've misunderstood part of what I'm trying to say. (Sample
> file below.)
>
> On Firefox 1.5/OS X and Firefox 1.5/WinXP
>
> 1. When middle-clicking (or right-clicking and selecting "Open link
> in new tab"),
> a. The javascript does NOT fire, and
> b. The link opens in a new tab.
>
> So, if href="#", it opens a duplicate page, if href="javascript:void
> (0);" it opens a blank tab.
>
> 2. Oddly, when -clicking (to open in a new tab)
> a. The javascript DOES execute, and
> b. The link still opens in a new tab.
>
> In other words, as a Firefox user, I will often middle click on
> something that looks like a link--and the web app will not behave as
> I expect it to. Hence my suggestion to not use an href (and thus an
> tag) at all if you're trapping the onclick event but not linking
> anywhere. I'd also suggest trying to find a way to either
> make it not
> look like a link but still look clickable (is that a paradox?) or
> differentiate it visually somehow. It's not just about "unobtrusive
> Javascript" or "HIJAX," it's about behavior violating a user's
> expectations.
>
> For added fun, try middle-clicking on "Link 3" in Firefox.
>
> On Safari 2.0, both when middle-clicking and -clicking, and IE/
> WinXP when - or -clicking, the javascript executes, but
> no new link/tab/window opens. (What I believe is expected
> behavior.)
> For both Safari and IE, right-clicking and selecting "Open link in
> new tab/window" does not execute the js, and opens the link in the
> new tab/window.
>
>
> -- TAG
>
> http://www.w3.org/
> TR/html4/strict.dtd">
>
>
>
>
> //<![CDATA[
> var Debug = {
> print: function (str) {
> if (!this.debug) {this.debug =
> document.getElementById("debug");}
> this.debug.innerHTML += str;
> },
> println: function (str) {this.print(str + "<br />\n");}
> }
>
> var Event = {
> stop: function(event) {
> if (event.preventDefault) {
>event.preventDefault();
>event.stopPropagation();
> } else {
>event.returnValue = false;
>event.cancelBubble = true;
> }
>}
> }
>
> function click2() {
> var e = window.event;
> if (!e) {Debug.println("No event"); return false;}
> Event.stop (e);
> return false;
> }
>
> function click3(e) {
> Debug.println('Link 3 clicked');
> if (!e) {e = window.event};
> if (!e) {Debug.println("No event"); return false;}
> Event.stop (e);
> return false;
> }
>
> window.onload = function () {
> var el = document.getElementById("link3");
> el.onclick = click3;
> }
> //]]>
>
>
> #link3 {
> color:blue;
> text-decoration: underline;
> }
>
>
>
>
> Link 1
> Link 2
> Link 3
>
>
>
>
>
>
> On Aug 15, 2006, at 12:47 PM, Sam wrote:
>
> >> Exactly that is also my problem. Oky not mine but also a
> >> customer of mine
> >> wants the shift click.
> >> Statement: Shift click does the same as click but opens in new
> >> window"
> >> Problem: I have some functionality that changes a area you
> could name
> >> display-area. The customer now argues that he expects the
> >> display-area in a
> >> new window.
> >
> > My thoughts:
> >
> > - Thomas' statement: when onclick returns *false*, the href isn't
> > taken.
> > That solves many problems and I think was overlooked by
> critics of the
> > href=# option.
> >
> > - href="#" won't go to the top of page if onclick returns false,
> > however,
> > href="javascript:void(0)" won't go anywhere no matter what the
> > onclick event
> > handler returns.
> >
> > - IE will open a window in any case if the SHIFT key is held
> > down. I'
[Rails-spinoffs] Keeping controls in the display
I have a few controls (submit buttons), which would be nice to keep in the display area when users vertically scroll to the bottom of the page. Which Script Aculo function would I use to do this? Sam ___ Rails-spinoffs mailing list Rails-spinoffs@lists.rubyonrails.org http://lists.rubyonrails.org/mailman/listinfo/rails-spinoffs
