[Interest] WebView in Qt 5.1 - first impressions

[Joseph Crowell]

Also, is your WebView storing cache to the drive and then reloading from 
there which is what Firefox would do? Try clearing Firefox's cache and 
then compare performance with an empty cache.

On 7/21/2013 7:06 PM, John C. Turnbull wrote:
>
> Hi Morgan,
>
> Yes, I was comparing apples and oranges as you say but even when I 
> launch the WebView with some other initial URL and then navigate to 
> Google Maps I find that the load time is much more sluggish than 
> Firefox or Chrome (although faster than the initial load).
>
> Can you comment on the behavioural quirks I referred to?
>
> I will take your advice regarding loading the WebView on application 
> start up.
>
> Thanks,
>
> -jct
>
> *From:*speedin_up at hotmail.com [mailto:speedin_up at hotmail.com] *On 
> Behalf Of *Morgan McKenzie
> *Sent:* Sunday, 21 July 2013 12:14
> *To:* John C. Turnbull; interest at qt-project.org
> *Subject:* RE: [Interest] WebView in Qt 5.1 - first impressions
>
> are you comparing having firefox closed and then opening and 
> navigating to google maps, or just opening a tab and browsing there? 
> because in my experience browsers take a little bit of time when you 
> first open them... and it's the same with webview. So it kind of 
> sounds like you're comparing apples to oranges... try loading webview 
> to something other than the google maps, and then once that first page 
> is done navigate to a map and see if it's still slow...
>
> If you're really worried about it i'm pretty sure you could set it up 
> so that webview loads up when the application first starts up (at the 
> expense of extra RAM)... not that I'm a developer of it or anything, 
> but just from my experience with other parts of qt, things are often 
> loaded only when necessary.
>
> Morgan
>
> ------------------------------------------------------------------------
>
> From: ozemale at ozemail.com.au <mailto:ozemale at ozemail.com.au>
> To: interest at qt-project.org <mailto:interest at qt-project.org>
> Date: Sun, 21 Jul 2013 06:50:06 +1000
> Subject: [Interest] WebView in Qt 5.1 - first impressions
>
> Now that I have WebView successfully displaying Google Maps in Qt 5.1 
> I thought I would share my first impressions.
>
> For a start, it seems to be way slower than Firefox or any other 
> standard browser on this machine. When I open Google Maps in Firefox, 
> the entire page is loaded and rendered in about 2 seconds. When I open 
> the exact same page in WebView it takes about 10 seconds to load and 
> render the entire page.
>
> Once the initial page is loaded though the speed at which other linked 
> pages are loaded and rendered seems to be not that much slower than in 
> Firefox.
>
> However, there seem to be a few behavioural quirks that I have 
> noticed. For example, clicking the left mouse button and dragging the 
> map is supposed to pan around but in WebView it has no effect. Also, 
> double-clicking zooms into the map in Firefox and then subsequent 
> double-clicks zoom in even further. With WebView the first 
> double-click zooms in as expected but the second one then zooms back 
> out again.
>
> Why is loading the first page in WebView so much slower than a 
> standard browser?
>
> Why are there anomalies in the way the page behaves (especially with 
> the mouse) and are these quirks likely to be fixed in a future release?
>
> -jct
>
>
> _______________________________________________ Interest mailing list 
> Interest at qt-project.org <mailto:Interest at qt-project.org> 
> http://lists.qt-project.org/mailman/listinfo/interest
>
>
>
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/interest

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.qt-project.org/pipermail/interest/attachments/20130722/a28b52d8/attachment.html>