I'm testing the WebView as a RichTextEditor.
I've noticed there are 3 methods to load data into it, so I googled to find out which are the differences between them, but find no clear answer.
Could someone please give me some insight about that?
Am I right supposing it's best to use loadHtmlString for local content and loadRequest for web content?
Thanks for your support!
There are three recipes in the MonoTouch docs (see bottom of page) that pretty clearly illustrate the three methods.
LoadData() - load non-HTML data, can specify MIME type
LoadRequest() - load content using async HTTP request
LoadHTMLData() - load an HTML string
Related
I have a site that is using fontawesome. I am lazy loading many of the CSS files to increase first page load time, etc.
However, I need the fa-phone-alt to working on first load because it appears at the top of the page.
Can anyone provide guidance as to how I an add inline style just for the fa-phone-alt so that it works without having to load the entire style sheet?
Hope I am explaining this well enough.
Thanks.
I'm not sure how to solve exactly what you're asking, but a workaround could be that you download an SVG of a phone and place it so it loads instantly.
I have been working with Vaadin charts during this week and I found a problem that I cannot solve. I need to send several charts to a PDF generation (using iTextpdf) and I could do it using SVGGenerator. The main problem is I cannot use this solution because the final laptop doesn't allow any installation, and Phantomjs is required for SVG Generator (no add-on can be installed neither). I tried to find a different solution to convert the chart content into file or buffer that I can manage, but I think I have been reading so much posts and I am not able to distinguish the solution.
So, I will try to clarify basic questions first:
a) Is it possible to manage SVG Generator without any installation in the laptop?
b) If not, is there a different way to convert a chart into an object which class could be managed to insert it into a PDF?
I can assure you I tried to read all documentation in this forum and official Vaadin forum related to this topic but I couldn't find any solution. I don't want to seem lazy, I only want to avoid spending more time and clarify the maining pre-conditions to solve this issue.
thanks in advance for your time and help.
Kind regards,
David.
You can take a screenshot of your chart and append it to pdf:
Screenshot screenshot = new Screenshot();
screenshot.setTargetComponent(myTargetComponent);
myChartLayout.addComponent(screenshot);
//when complete
screenshot.addScreenshotListener(new ScreenshotListener() {
public void screenshotComplete(ScreenshotImage image) {
//do something
}
});
//take screenshot
screenshot.takeScreenshot();
You will not be able to render a Vaadin Chart without a web browser engine of some kind. That's what PhantomJS provides. If you have a full-blown web browser at your disposal, though, you can grab the SVG markup manually from there; it's just a bit more difficult to automate. This works in Chrome:
Open your Charts app in the browser
Open the JavaScript console (Ctrl/Cmd + Shift + J)
Type something like this: copy(document.getElementsByTagName('svg')[0].outerHTML)
Paste the contents of your clipboard to a new text file and save it as an SVG.
You don't need to install phantomjs, just bundle its binary along with your web application (Reference). I did the same thing with my Amazon AWS deployment and it works just fine.
Are Content Scripts (http://code.google.com/chrome/extensions/content_scripts.html) injected into prerendered pages (document.webkitVisibilityState== 'prerender') ?
I’ve been reading https://developers.google.com/chrome/whitepapers/prerender and https://developers.google.com/chrome/whitepapers/pagevisibility, and am trying to figure out how Content Scripts work with page prerendering/prefetching.
Thanks
TheZ, tomdemuyt: I’m afraid you guys are missing the point. ‘run_at’ specifies whether the content script is injected before or after the DOM is constructed.
However, I am talking about document.webkitVisibilityState, which can be ‘prerender’ (when the page is in a background/invisible tab), ‘hidden’, or ‘visible’. Note that webkitVisibilityState can transition from ‘prerender’ to ‘hidden’ or ‘visible’, or back and forth between ‘hidden’ and ‘visible’, without any changes being made to the DOM. (In order to better understand this, read the articles linked in my original post.)
I think I’ve been able to determine that content scripts ARE injected into prerendered pages. Here’s the problem, however: let’s say my content script does something that should not occur on a prerendered page. For instance, it does pageview count, or adds animation, neither of which should begin until the user is actually viewing the page. So it seems that my content script should do something like what’s shown in the code examples on https://developers.google.com/chrome/whitepapers/pagevisibility - check document.webkitVisibilityState, and also listen to the ‘webkitvisibilitychange’ event, and only do pageview count/start the animation when document.webkitVisibilityState is, or has transitioned to, ‘visible’.
I may have just answered my own question, but I just wanted to make sure that I was on the right track.
Thanks
As TheZ mentioned, you should ues the run_at setting.
Link to docs : http://code.google.com/chrome/extensions/content_scripts.html#registration
I am currently developing a site which is not supposed to expose its developer magento platform(Sorry about that ).
I thought the wappalyzer(Mozila addon),GTmetrix site is finding the cms names by its html format but when i saw a empty white page with that tools it still shows me like am using Magento(there is nothing in the source view - its white page), so now how they are finding that am using magento. Any idea about hw they are working? I checked headers but there nothing specially mentioned as magento. Same goes with wordpress/joomla - simply wappalyzer(Mozila addon),GTmetrix finds the site platform even there is no html source.
So I guess something with in header(i might missing something) or what it can be? please advice. Attached screenshot of it.
Thanks in advance
You can view Wappalyzer's source code: (Ctrl+F Magento):
https://github.com/ElbertF/Wappalyzer/blob/master/share/js/apps.js
Most likely Wappalyzer picked up on the "Mage" JavaScript variable. You can see this by clicking the DOM tab in Firebug.
They are finding it using the words like mage,varien,magento. If it finds any of these words inside css/js file class,#id,inside comment then it found it as magento.
Also gtmetrix does one more step , like it is checking the css/js url path - if it fins the url like skin/frontend then it says it as magento.
Dont forget cookies...
I use FireBugs. Go to main menu -> Cookies
There is frontend in cookies.
I am creating an ASP.NET web application. In one of my webpages (an ASCX control) I am placing a fusion chart inside a <div> tag. I want to provide an option for the client to download this fusion chart.
Is there any way that I can download
the fusion chart present in the Div
tag, as an image (Using javascript
because the div tag is a client side
control).
The request is that my client could save this fusion chart present in the <div> tag as an image when he visits the webpage.
The target browser is IE.
Please help me.
I can confirm that it is not possible to 'Export the chart as image' when using FusionCharts Free. However, as mentioned by Larsenal, you will be able to use FusionCharts v3.2.1 and it's updated JavaScript API to export pure JavaScript charts to JPEG, PNG, PDF, SVG formats.
Ref.- http://www.fusioncharts.com/docs/?ECPureJS.html
Furthermore, you may even export your Flash charts, if required, in a similar manner. DO check out the link below for a more detailed account of the same.
Ref.- http://www.fusioncharts.com/docs/?ECOverview.html
Hope this helps.
It is currently not possible to generate an image from a section of a webpage with JavaScript. Quoting myself from another question:
Firefox added something similar to
this to their canvas implementation.
You can find
CanvasRenderingContext2D.drawWindow()
documented in their wiki. It is
restricted to being used by plugins,
for security purposes, and isn't
supported by any other browsers.
There is
talk
of adding support to other browsers,
and perhaps removing some of the
security restrictions, but that is
probably a long way off. For now,
there isn't a good JavaScript solution
to your problem.
Sorry, there's no way to do it with Javascript.
I don't know about the Fusion controls, but some graphing libraries include a way to render to an image or PDF. Start looking there, not Javascript.
Update: FusionCharts claims to have the ability to export to JPG, PNG, PDF and CSV. Start with this page about exporting pure JS charts in their documentation.