I'm developing a web app, using Play framework and javascript, but exactly I don't know how to print a form (i.e. an invoice). I thought it has to be implemented on Javascript. but reading on web, I didn't find anything. I´m searching now if the implementation is on Server side (Java), but i dont have any idea.
That's a very weird question that you have here, I probably don't get it right..
What do you mean "Print a form" ?!
What about print page from your favorite browser ?
Must be missing something.
What about render the invoice in pdf format?If you are interested in doing something like that check this module:
http://www.playframework.org/modules/pdf
I think it is the best solution and that's what most companies do.Hope that helped
Related
Sorry for stupid question that I will ask. So, I have a problem with iOS app development. This app is basically simple RSS reader that work as a parser. When I put RSS link in usually works correctly, but now, when I put link of one university, Instead of opening the file after clicking to the title (any news),
doesn`t open page that I select, instead of it, it opens webpage with news:
if u know something about my question, please advise me something. Thanks you
Please Use Flatten HTML methods as it seems there are lot of characters which need to replace to show content as it should be.
I have a task to implement but after some thought I don't really know from where to begin.
What I need to achieve:
Lets take as example BestBay web site. From my app I would like to create a certain query which will go/use to BestBay search type what I need and bring me the result. On my device I would like to show it as 10 views of the first items the website returned. For instance if I type "tvs" I will get a list of tvs so I would like to show this list on my device with the price and the link to the item (at least for the 10 first items).
I have experience with native apps(i didn't worked with web apps).
I can't use Best buy api.
I am not sure from where to begin.
I read about YQL.
I thought maybe to use the web page with the results as html and parse it to the objects I need.
Did anyone do something similar and can give me some starting point.
How to approach this kind of problem.
(tutorials/documentations/sample code something that can help me to start).
Tnx a lot.
In the end I decided to do it by HTML parsing:
parsing HTML on the iPhone
How to Parse HTML on iOS
How could I access a website and turn components of the website into strings. For example taking information from Facebook posts. I have done a little searching but can't find any good tutorials or anything useful.
Try looking at this tutorial. It should get you more familiar on the subject and start you off on the right track.
As it states at the beginning of the tutorial...
How to Parse HTML on iOS
Let’s say you want to find some information inside a web page and
display it in a custom way in your app. This technique is called
“scraping.” Let’s also assume you’ve thought through alternatives to
scraping web pages from inside your app, and are pretty sure that’s
what you want to do. Well then you get to the question – how can you
programmatically dig through the HTML and find the part you’re looking
for, in the most robust way possible? Believe it or not, regular
expressions won’t cut it! Well, in this tutorial you’ll find out how!
You’ll get hands-on experience with parsing HTML into an Objective-C
data model that your apps can use.
http://www.raywenderlich.com/14172/how-to-parse-html-on-ios
i wonder how google manages to open external links in a new window/tab without defining target="_blank".
For example in google plus, all external links open in a new window.
I think its some Javascript voodoo but the .js code is obfuscated so i cant really look into.
edit: oh and followup question: why?
Using a framework makes this easy. Just have JavaScript look for links marked rel="external", or another identifier that shows them to be an external link, and dynamically add target="blank". Here's an example using Prototype:
$$('a[rel="external"]').each(function(a) {
a.setAttribute('target', '_blank');
};
It's not beyond reasoning for them to add the target attribute by javascript before allowing the anchor link event to return true.
It's Javascript. You can say:
window.open('http://example.org', '_blank').focus();
But please, don't. Opening links in new windows is almost always the wrong thing to do. Seriously, good uses of this are vanishingly few. If users want a link opened in a new window, they are quite capable of doing that themselves.
Jakob Nielsen was telling people this twelve years ago. Others have taken up the cudgels. The W3C removed the target attribute from HTML 4 because it was such a bad idea. I honestly don't understand how this usage persists. Don't you find it incredibly annoying when a website does this to you? Why would you want to write a website which does this to someone else?
Which brings me to your followup question. Why did Google decide to do this? I have no answer to that, and i am completely and utterly baffled how one of the very biggest, brightest, web companies could make such an elementary mistake. But then, a lot of the Google Plus interface has very poor usability (as in, mostly worse than Facebook poor); i suspect there is an interesting story behind it. Was the project under-resourced, and thus built cheaply on top of a rapid development framework such as GWT? Was it built as a spare time project by a lone wolf with a blind spot for web architecture? Was it driven by strategy wonks who didn't care about getting the technology right? Mystery.
I am unlucky to be in charge of maintaining some old Yahoo! Store built using their RTML-based platform.
Recently I've noticed that HTML code generated by some RTML functions is sprinkled all over with "padding images" (or whatever is the conventional name for those 1x1 pixel images used to enforce layout). I have nothing against using such images, but... all those images are supplied with an ALT attribute like this:
<img href="http://.../image1x1.gif" alt="pad">
With all due respect to the original authors of RTML, but they must have been smoking something when they came up with this "accessibility enhancement"... :-(
Anyway, here are my questions:
Does anybody know a list of all RTML functions that generate HTML with all these "pad" images?
Is there any way to get rid of all those alt="pad" attributes without rewriting a lot of RTML code?
NB: This may sound a little cynical, but improved accessibility is not the main goal here. The main goal is to stop exposing those moronic alt="pad" attributes to Google and other smart search engines. So client-side scripting is not going to help, as far as I know.
Thank you!
P.S. Probably, most of you are really lucky and never heard of RTML. Because if somebody would establish a prize for software products based on
commercial success
------------------
usability
ratio, this RTML-based "platform" would probably win the first place.
P.P.S. Apparently someone from Yahoo! finally listened, because I can no longer find those silly "pad" tags in the RTML generated for our store. Nevertheless, one of the ideas offered in response to my original question does provide a very practical solution - not just to the original problem but to any similar problem with RTML platform. See the winning answer - it's really good.
The only way I see is to have your own website front-end that will filter whatever you want from the RTML site....
for example, your rtml site is at http://rtmlusglysite.yahoo.com/store/XYZ01134 , you could host a simple PHP front-end at http:://www.example.com that would be acting like a "filtering" HTTP web proxy, so http://rtmlusglysite.yahoo.com/store/XYZ01134/item1234.rtml would be accessed by http://www.example.com/item1234.html
It's not an ideal solution, but it should work, and you could do some more fancy stuff.
Nice try from the other posters, but there is a very simple RTML command that will do it. . .
TEXT PAT-SUBST s GRAB
MULTI
HEAD
BODY
TEXT #var-with-alt-tag-equals-pad-in-it
frompat "alt=\"pad\""
topat ""
The above RTML will find all instances of alt="pad" and replace it with nothing.
Well you're right on RTML being relatively untraveled :)
Do you have a way to add your own attributes to these images tags? If so, would it be possible to override the alt attribute? If you specify alt="", I would think that would override Yahoo's... Otherwise consider putting a useful alt tag in there for the blind and dialup types.
It's the first time I'm hearing about this platform, but here is an idea: if you can add javascript to the pages, you could write a function that will run after the page has loaded and remove all the alt="pad" attributes from the page.
Unfortunately this solutions works only with browsers that know about scripting, so lynx or some other text based browsers might not support it.
I have shared a link official RTML guide from yahoo. Hope it will help. Thanks!
List of available RTML books and resources