QWebView and Google Maps JS API v3
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wrote on 8 Dec 2010, 03:18 last edited by
I had the some issue . And I used the google v3.1 API , map can drap/zoom. Include the google map api :
http://maps.google.com/maps/api/js?v=3.1&sensor=true -
wrote on 8 Dec 2010, 10:40 last edited by
Thanks nemoxu! Adding the version (v=3.1) to the script solved the problem for me.
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Yeah, it works, thanks!
It doesn't work in later versions though (3.2, 3.3) so I hope it's not like designing for IE6 - relying on a "known bug" to make it work..
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wrote on 8 Dec 2010, 17:13 last edited by
I haven't had a chance to try but using qt webkit 2.1 (I think that is how the new branch is called) should give us all the "gestures" and the "location" api. I remember seeing a message about the beta source code being available for download.... Anybody has tried it?
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wrote on 3 Mar 2011, 11:14 last edited by
I have the same issue (Qt 4.7.2). Adding "js?v=3.1&sensor=true" didn't do the trick for me.
There is still no panning (left mousebutton) and zooming (mousewheel).I compiled Qt WebKit 2.1 from the repository (mingw, gcc 4.4.0), but the example browser crashes when i try to open a webpage.
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wrote on 30 Apr 2011, 18:55 last edited by
Hi,
Today I have tired to use google maps with Qt and I'm having the same problems. Maybe somebody has more suggestions?
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wrote on 8 May 2011, 22:26 last edited by
I've found a very hacky fix that can be used until Google and/or Nokia get with the program to either support WebKit or allow for the touch events to be disabled at runtime. Turns out, as part of the test that the Google code performs to determine whether the browser is touch enabled, it checks the User Agent for Chrome >= 5.0, so by changing the user agent to something like 'Chrome/1.0' the touch interface suppressed. I verified this with PySide 1.0.2 / Qt 4.7.2 / API 3.5.1 but it should in theory work with any Qt version.
Example (PySide):
@
class ChromePage(QWebPage):
def userAgentForUrl(self, url):
return 'Chrome/1.0'_map = QWebView()
_map.setPage(ChromePage())
_map.load(QUrl('a/map/page.html'))
@In case anyone's interested in the details, I de-minified Google's JS code and found this line:
@
ng = X[v] == 3 && X.b <= 5 ? !1 : lg(ontouchstart) && lg(ontouchmove) && lg(ontouchend)
@
which de-obsfucates roughly to:
@
useTouchUI = navigator.userAgent.toLowerCase() == 'chrome' && navigatorVersion <= 5 ? false : checkForEvent(ontouchstart) && checkForEvent(ontouchmove) && checkForEvent(ontouchend)
@Interesting but I suppose unsurprising that Chrome is the one browser that Google checks for explicitly. I hope Google offers this as a selectable option (since it's the addition of a single line of code) but in the meantime, enjoy this fix.
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wrote on 21 May 2011, 10:32 last edited by
Had to sign in to say thanks, you're a genius! I was struggling for weeks!
here is the same trick in C++:
@class myWebPage : public QWebPage
{
virtual QString userAgentForUrl(const QUrl& url) const {
return "Chrome/1.0";
}
};...
map->setPage(new myWebPage());
map->load(QUrl("a/map/page.html"));
...
@ -
wrote on 4 Jun 2011, 05:01 last edited by
[quote author="Yuvalal" date="1305973922"]here is the same trick in C++:[/quote]
Had to sign in to say thanks to you (for posting this in C++) and to @lowsnr.This worked flawlessly :hattip: to both of you (for posting the solution).
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wrote on 10 Jun 2011, 18:44 last edited by
I would like to say thank you, too
Nice work! -
wrote on 27 Jun 2011, 09:09 last edited by
Excellent!!! Great job!! It Works!!
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wrote on 27 Jun 2011, 19:50 last edited by
Oustanding find!! I'm using webkit with a standard webview widget. Using the app args API works for this string, under this scheme (4.7.3):
QApplication app(argc, argv);
// Work around for QT Webkit/Google Maps V3 API to allow map panning via touch control
app.setApplicationName(QString("Chrome"));
app.setApplicationVersion(QString("1.0")); -
wrote on 28 Jun 2011, 06:39 last edited by
[quote author="Yuvalal" date="1305973922"]Had to sign in to say thanks, you're a genius! I was struggling for weeks!
[/quote]I was struggeled also in that problem and have to say a lot of thanks for the C++ code. Now it works :-)
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wrote on 24 Nov 2011, 16:45 last edited by
I have the same issue (Qt 4.7.2).
Adding “js?v=3.1&sensor=true” doesn't change the situation.
There is still no panning and zooming. I have tried this on my desktop and also on a linux board with touchscreen(the touchscreen works fine with Qt widgets ).Any idea ?
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[quote author="rigelsg" date="1322153106"]I have the same issue (Qt 4.7.2).
Any idea ?[/quote]
There were 3 or so working solutions given already. Read the thread please. -
wrote on 25 Nov 2011, 08:58 last edited by
Excellent now it works :) , thank you.
Is there any way to save the maps on disk using QNetworkDiskCache ?
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wrote on 13 Dec 2011, 07:34 last edited by
Thanks to lowsnr and Yuvalal :)
Your fix works for me too! -
wrote on 19 Dec 2011, 22:57 last edited by
Thanks a lot to the two of you, I actaully just made an account to say thank you, you don't know how much time and effort you have saved me
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wrote on 7 Mar 2012, 22:22 last edited by
I can feel the pain above. I have been trying mouse dragging to work in a Webview with no luck. I have added my own buttons to my app and I can move the location but their operation needs a lot to be desiredc. Where can I get a project that has this working so I can use it as an example?
Ken
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wrote on 18 Oct 2012, 16:39 last edited by
http://qt-project.org/forums/viewthread/19887
Working solution under windows
I did try to build webkit but even if setting touch to 0 didn't work (got a fews tests to do on that option to confirm)