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I would like some more information. Like what engine is this based on? What JS engine? And I guess the source will not be open? (Why?) Edit: Some more info her

I would like some more information. Like what engine is this based on? What JS engine? And I guess the source will not be open? (Why?) Edit: Some more info here: http://thenextweb.com/apps/2015/01/27/meet-vivaldi-new-browser-former-ceo-opera/ http://thenextweb.com/apps/2015/01/27/meet-vivaldi-new-brows... Seems as if it uses the Chrome engine. I wonder about the differences to Opera then. Edit: Found also this on the homepage (somewhat hidden under the "Web technology" tab): We use JavaScript and React to create the user interface — with the help of Node.js, Browserify and a long list of NPM modules. Vivaldi is the web built with the web. So it's like http://breach.cc/ http://breach.cc/ (https://news.ycombinator.com/item?id=8952152 https://news.ycombinator.com/item?id=8952152) then?

quarterto 12y ago
Since it seems to use atom-shell for the UI[1], it's likely Chromium. [1]: https://vivaldi.com/#Features/4 https://vivaldi.com/#Features/4
- Maakuth 12y ago
  User agent provides further evidence, mine reports to be Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.89 Vivaldi/1.0.83.38 Safari/537.36
gorm 12y ago
Most of the UI is based on React. But we use a lot of open source projects. If you run it you should visit vivaldi://credits
- mjg59 12y ago
  It's cool that you use a lot of open source projects. But some of them are under licenses that require the user to be able to download their source code, and it's not obvious right now where (for instance) your Webkit code is. You should probably fix that.
  - mjg59 12y ago
    And as an aside - if you're linking LGPLed material into a static binary (as you appear to be doing with Webkit), you need to follow the provisions of section 6(a) of LGPL 2.1 and provide object files that allow the recipient to re-link the binary with a modified copy of the LGPLed work.
- yellowapple 12y ago
  According to that, it seems that Vivaldi uses a lot of GPL'd and LGPL'd libraries, and it's not clear that Vivaldi is in compliance with the copyleft requirements of those licenses, nor is it apparent which license Vivaldi is released under as well (be it a FOSS license, some EULA, etc.). There are also a lot of libraries listed that are licensed under the Mozilla Public License, which is incompatible with the GNU GPL. Distributing this therefore might not actually be legal, regardless of whether or not it's released under a FOSS license, since those two license families have conflicting requirements for derived works (including works which use those libraries). YMMV, IANAL, etc., but this thing's running the risk of legal technicalities killing it in the crib.
- WorldWideWayne 12y ago
  Please just give us a native window that works like the rest of the application windows on my OS though. What's the need for customizing the UI so that it doesn't fit in with the OS?
matmann2001 12y ago
Basically, it looks like it's going to be Opera on the Chrome engine, but with the return all the cool unique features Opera ditched when they switched engines a little while back. And hopefully managed by a group that has the spirit from Opera's good old days.
- leni536 12y ago
  What about Otter Browser? http://otter-browser.org/ http://otter-browser.org/
  - Springtime 12y ago
    I'm surprised I haven't heard of this until now, it's made by a group of members from the now closed Opera (12) forums. There are people who are fond of the Presto version's features so I'm glad there are efforts like it.
  - foooh 12y ago
    I tried this a while back (a few months?), and it doesn't seem like it has progressed much. I think Vivaldi has a much better chance of getting somewhere. A bunch of coders doing work on a voluntary basis will have a hard time competing with teams of full-time paid engineers.
- jason46 12y ago
  As an old fan of Opera I'm starting to like v27. Sure I can't use it for torrents or mail, but the new bookmarks are neat.
xai3luGi 12y ago
Provided it is not open-source, it can repeat the fate of Opera Presto one day...
- Al-Khwarizmi 12y ago
  Yes, Otter Browser is a safer bet as it's free software.
jccalhoun 12y ago
yes the web site really fails at two of the things I am interested in: what engine does it use and what does it look like.
jklinger410 12y ago
Someone should bring this to Windows...

quarterto 12y ago

Since it seems to use atom-shell for the UI[1], it's likely Chromium. [1]: https://vivaldi.com/#Features/4 https://vivaldi.com/#Features/4

Maakuth 12y ago
User agent provides further evidence, mine reports to be Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.89 Vivaldi/1.0.83.38 Safari/537.36

gorm 12y ago

Most of the UI is based on React. But we use a lot of open source projects. If you run it you should visit vivaldi://credits

mjg59 12y ago
It's cool that you use a lot of open source projects. But some of them are under licenses that require the user to be able to download their source code, and it's not obvious right now where (for instance) your Webkit code is. You should probably fix that.
- mjg59 12y ago
  And as an aside - if you're linking LGPLed material into a static binary (as you appear to be doing with Webkit), you need to follow the provisions of section 6(a) of LGPL 2.1 and provide object files that allow the recipient to re-link the binary with a modified copy of the LGPLed work.
yellowapple 12y ago
According to that, it seems that Vivaldi uses a lot of GPL'd and LGPL'd libraries, and it's not clear that Vivaldi is in compliance with the copyleft requirements of those licenses, nor is it apparent which license Vivaldi is released under as well (be it a FOSS license, some EULA, etc.). There are also a lot of libraries listed that are licensed under the Mozilla Public License, which is incompatible with the GNU GPL. Distributing this therefore might not actually be legal, regardless of whether or not it's released under a FOSS license, since those two license families have conflicting requirements for derived works (including works which use those libraries). YMMV, IANAL, etc., but this thing's running the risk of legal technicalities killing it in the crib.
WorldWideWayne 12y ago
Please just give us a native window that works like the rest of the application windows on my OS though. What's the need for customizing the UI so that it doesn't fit in with the OS?

matmann2001 12y ago

Basically, it looks like it's going to be Opera on the Chrome engine, but with the return all the cool unique features Opera ditched when they switched engines a little while back. And hopefully managed by a group that has the spirit from Opera's good old days.

leni536 12y ago
What about Otter Browser? http://otter-browser.org/ http://otter-browser.org/
- Springtime 12y ago
  I'm surprised I haven't heard of this until now, it's made by a group of members from the now closed Opera (12) forums. There are people who are fond of the Presto version's features so I'm glad there are efforts like it.
- foooh 12y ago
  I tried this a while back (a few months?), and it doesn't seem like it has progressed much. I think Vivaldi has a much better chance of getting somewhere. A bunch of coders doing work on a voluntary basis will have a hard time competing with teams of full-time paid engineers.
jason46 12y ago
As an old fan of Opera I'm starting to like v27. Sure I can't use it for torrents or mail, but the new bookmarks are neat.

xai3luGi 12y ago

Provided it is not open-source, it can repeat the fate of Opera Presto one day...

Al-Khwarizmi 12y ago
Yes, Otter Browser is a safer bet as it's free software.

jccalhoun 12y ago

yes the web site really fails at two of the things I am interested in: what engine does it use and what does it look like.

jklinger410 12y ago

Someone should bring this to Windows...