I tried to google it, but without much success.
Here is my problem:
I have something like a drag-and-drop game in jQuery, where the user drags some items (div with img) to the droppable drawing area.
I need a screenshot of the users design so I can put all designs into a gallery page.
My problem is how to get the HTML code into a jpeg/png/gif/canvas/whatever.
Btw. I'm on a shared PHP hosting on the server side.
You're doing it wrong. Store each piece's location at all times in javascript, and then just submit that data and re-build the images/locations based on the passed javascript data.
The functionality you are describing is extremely complex to write with PHP - but there are services such as www.thumbshots.com or www.browsershots.com that do the same thing. This question has been asked similarly many times before here:
https://stackoverflow.com/search?q=screenshots+with+php
You want to build your game in canvas, which can then export itself out as a PNG file that you could then have submitted back to the server.
Related
My page will have a lot of images, which will take a lot of time to load and will make it very slow, so my question is
how to make the page to download and display only the pictures that are being shown in front of you, exactly the same as performing image search with google, whenever you scroll it will keep downloading and displaying the focused images.
Thanks all.
Image lazy loading
eg Lazy Load Plugin for jQuery (http://www.appelsiini.net/projects/lazyload)
Demo: http://speckyboy.com/demo/lazy/index.html
Use ajax, you can easily detect the view port by javascript and the images dimensions, so when scrolling, all you have is to send request to populate more rows of the view, this could be tables or div.
You can't do something like that in PHP.
It has be done in JQuery.
There is a plugin that does what you need, called Lazy Load.
Take a look on this site: http://www.appelsiini.net/projects/lazyload
I want to make a button generator with javascript in my site, something like this http://css-tricks.com/examples/ButtonMaker/ .
But I want to add a save button too, so that the user will be able to save the button image he creates. I want to save the image in my server with PHP if possible.
Does anyone have an idea, of what should I really read or search for?
Thanks in advance
The button in the example generator is rendered by your browser. It is just a button element which is styled. I don't think you can easily save it using php.
What you could do is create a button generator that accepts parameters and then renders the image serverside (using php) and sends it to the browser for displaying. This rendered image can then easily be saved.
The link you've provided just defines the CSS for the element - you just eed to send this back to the server - via a form or ajax.
One approach would be to send the css settings to your server and execute an html renderer which somehow allows you to save a screenshot of the button.
Googling for "html renderer" yields several results, but I can't tell whether any of them offers an API that allows you to easily save images of desired elements.
(Of course, Firefox and Chrome all count as html renderers too).
In the worst scenario, using my approach, you'd have to render the button server side, take an screenshot and use some algorithm to find and cut the button from the screenshot.
I'd say this is a complicated approach overall. I'd go with what Iljaas' says.
I would like to implement a RTE (Rich Text Editor) with the ability to upload images anywhere inside the text. My aim is to create an "add / edit news article" page, where the client can write a story with images.
I am good at PHP and Javascript programming, so I am looking for help about methods of implementing this. Do I create a custom button in this RTE to insert a previously uploaded image or some other way? How do I display those images for the user to choose? Etc.
Bonus points for:
Multiple files upload: the ability for the client to just select e.g. 10 images that are relevant to this story.
Uses some method other than Flash as a default for upload.
Uses jQuery as I use it a lot.
RTE is very lightweight. I don't care if the client has to know a few things (like markdown or something similar), I just don't like bloated RTEs.
Uses new technologies, like HTML5 and / or CSS3.
Let me clarify a few things. I know a few Javascript RTEs and have also used them in several CMSs. So I don't need links to these, I can Google "javascript RTE" myself :). However, something like #hakre said is useful as he pointed out how extensible CKEditor is, which I was not fully aware.
To give an example of the answer I'm looking for: "you can do this with CKEditor, upload images asynchronously with jquery-html5-upload, save all uploaded image filename in a Javascript array, create a new button inside CKEditor with a custom click handler, which displays an overlay with Fancybox and you show all the images (you have filenames stored in an array), user clicks an image and you insert html into the editor".
Something like that but better :) (or should I say accurate).
Anything in here that meets with your reqs? http://ckeditor.com/developer-features
You taken a look at TinyMCEor CKEditor?
The "fake answer" you gave yourself is quite accurate. You would need a RTE editor that supports custom functionality.
The logistics would go along these lines:
User presses a button
An empty div is appended to the input with a unique id
An image uploader popup will open, with pointers to the new div
A combination of jQuery / AJAX / PHP will allow the user to upload a file within the page
The filename is returned after the upload process and inserted in the originally appended div
If you are looking for the specific code for each of these steps, I would recommend finding some tutorials as this isn't something that we can write some fast example code for.
What I'm trying to do is load a website on a frame and then mark points on it depending on screen coordinates obtained via a function.
Do I need PHP GD?
Loading the website on the frame is not an issue. It's how to mark points on the screen that's causing my hair to fall
Nah, what you need are absolute positioned HTML elements.
You can grab the page with PHP with curl or file_get_contents() and inject some HTML/CSS into it that creates absolutely positioned <p>s or <span>s or whatever.
Checkout this post here. It uses Mootools(a JavaScript framework), PHP, and MySQL. I think it's very similar to what you are trying to do except you want to mark points on the iframe instead of doing it on an image. The plugin can be attached to an element:
David Walsh's Mootools Heatmap
This question is a bit open at the moment as I'm not sure the idea is even possible.
So far I've loaded an image from a url, and then used jQuery UI draggable feature to allow the user to drag html text (which has been replaced using cufon font replacement) over the top of the image.
The major step (which is what my question relates to) is being able to take the image and text layered over the top of the image, and save the result, either to the server, or potentially offer the option to save the altered image to the user's HD, or what would also be useful is to upload to facebook using the facebook API, but this is something I know is possible.
It all hangs on whether it's even possible to achieve the first step, which is to save the image and layered text as a combined image?
I wonder if there is a PHP/jQuery solution that would allow me to do this?
My suggestion would be to have an internal URL that outputs the final image using jQuery and PHP, then take a screenshot using webkit2png of that page. You should know the dimensions etc., so you'll be able to crop down the resulting screenshot to just the region you're looking for.