I'm trying to write a very simple client application for iOS to go to a website with three buttons. Each of these buttons load a different webpage and run a command in an application on the server, takes the results from that command and displays them on a map on the very same page that the button loaded.
What I'm trying to achieve is to be able to do the following:
Click on one of the three buttons.
Have it then run the query.
JUST PULL THE DIV WITH THE MAP TO SHOW THE DATA instead of the entire page, which is what I currently have happening.
I was going to go about this by parsing the html with "libxml2" and "hpple" but I thought that I would ask here before I got started instead of spending a few days on this to realise that I am going about it the wrong way.
So with all of that said I guess my main questions are:
Is this possible?
Is the way I'm going about it correct?
2a. If the way I am going about it is wrong, how best should I go about it?
Normally on the webpage the map, that I am trying to pull, updates dynamically every second or so. In order to make the map dynamic in my application will I have to poll the site every time I want the map to update? or will it automatically update?
Related
I have a very simple scenario. A web page with a list of items which invokes ajax call upon clicking on any item and dynamically add some text to the page.
Now, obviously, if I leave this page and then I press the back button I get the initial list without all the dynamically added text.
I've been reading a lot about this issue. There are a many tricks to preserve the information and/or load it again from server. But it seems to me that this really simple and desired behaviour should have a simple solution without the need for any trick or server re-loading which will result in obvious noticeable delay for the user.
So, does anyone know about a simple way to get back to the page via back button and retain all the dynamically added parts without the need to load them again from the server?
I've table which displays around 100 records on button click in a div. It comes in a single page so to reach the end, have to scroll down to earth.
It feels messy and i would like if i can make 10 records on first look and next 10 on next page and so...
Somewhat like
Is it possible or any alter way to achieve it????
I have also started learning AngularJs recently.
If you want to use AngularJs then you could get some help from this link.
http://angular-ui.github.io/ng-grid/ . While doing R&D on AngularJs I found this link. Hope this could be helpful.
In order to user ng-grid you can either git checkout or download the zip (or use bower) from here https://github.com/angular-ui/ng-grid/tree/2.x
I just started working with html, and I am creating balloon description templates for Google Earth. I am creating site logs for gps locations around the world, and these sites get updated every now and then with a new receiver or antenna.
I have a table set up with all the information about the equipment we have at these sites, and I want to be able to change values in the table when the equipment is changed.
Right now the only way to do that is to go into the html code and find the specific value you need to change and then save the new html code. This works, but it would be nice if I could edit the values without having to go into the code. I know you can do contenteditable=true and then have some text you can edit, but when you refresh the page it goes back to the orignal text.
My question is if there is a way to edit the html code permanently without actually going through all the lines of code to find the one thing you want to change. If this cannot be done, or if my question makes no sense let me know. I probably just need to work with this stuff for more than a week.
I am trying to make a push notification about Internet page update, but downloading the full page (700k) again every minute is quite troublesome for users. Is there is a way to download only a specific part of page?
As far as I have read there isn't any way to get delta information about the page. Is there a method which allows that? I haven't found one for a day (if there is, how can I locate the certain byte where my information is placed in the first place?
What you want to do is learn some basics in AJAX calls.
You set an auto timer to reload div contents on whatever needs to be updated.
You could use a Range header like this:
Range: bytes=0-1000
This will obviously get you the first 1000 bytes.
I am currently working on a GWT application that requires report
printing. The use can select report parameters from a screen, and
upon clicking print we would like to display the file as it is being
generated. Currently we have server side code that is generating HTML
and writing it to a file. When the user clicks print, an RPC is being
made to pass the report parameters to the server and begin the
report. A second RPC is made after the report has started to obtain
the report's URL. From here, we are creating a Frame and setting the
URL to be the URL retrieved by the second RPC.
The issue I am running into, is that when setUrl gets
called, it only displays as much HTML that was contained in the file
at the time of the call. What would be the best way to refresh just
the frame containing the HTML report? It appears making subsequent
calls to setUrl passing in the same Url each time would do the trick,
but it actually doesn't seem to contain the additional content that
would've been written since the last call. It is also resetting the
vertical scroll bar's position each time back to the top of the bar
which is something else I would like to prevent.
Is there a better way to go about doing this?
I think it would be better to request HTML in chunks from GWT and render them as they arrive. Doing this with ajax instead of wholesale refreshes will enable better behavior with the scrollbar, eliminate flashing, get around caching problems, and will also let you add some feedback like a progress bar, estimated time remaining, etc.
There's a lot more infrastructure required for this, but your suggested solution doesn't seem quite appropriate for the task.