Web browser ??
lazarus / 38-Networking and Web Programming

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madref · 2021-10-12 10:18

How can one check which webbrowsers are installed on a system and then
choose one of them?

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Mr.Madguy · 2021-10-12 19:20

What OS?

On Windows you need to check something like HKLM\SOFTWARE\[Wow6432Node
\]Microsoft\Windows\CurrentVersion\Uninstall.

On Linux-based system you need to run it's package manager console
application and check it's output.

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speter · 2021-10-12 22:34

I think there is a way (in windows at least) to "run" the default
browser....

Have a look at "RunCommand" & "OpenDocument".

Edit: I had a look at OpenDocument; and it worked without any issues.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i uses
lclintf; // add this to your uses clause ... procedure whatever;begin 
OpenDocument('somefile.html');  // opens a file (located in the exe's
folder) in the default browserend;
cheers
S.

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trev · 2021-10-13 23:29

For macOS, see LSCopyApplicationURLsForURL

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dbannon · 2021-10-14 00:10

I think what madref wants is a list of browsers rather that the
default or user chosen browser. I suspect that might be hard.

On Linux, you can search for installed packages under the Section
"World Wide Web", that will pick up Firefox or Google Chrome on my
Ubuntu install for example. But also wget and will not pickup
Konqueror. Hmm...

What if user has decided to manually install Vivaldi ?

Maybe better to search for know binary names. Don't forget many Ubuntu
users are now installing Chrome directly from Google because Ubuntu
decided to make it available only in a Snap from its repositories.
Sigh ...

Not easy.

Davo

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trev · 2021-10-14 06:20

Quote from: dbannon on October 14, 2021, 02:10:21 amI think what
madref wants is a list of browsers rather that the default or user
chosen browser. I suspect that might be hard
The macOS function returns the full list of browsers with the first
entry being the "preferred default" or "best" as macOS calls it.

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madref · 2021-10-15 15:55

Quote from: trev on October 14, 2021, 01:29:30 amFor macOS, see
LSCopyApplicationURLsForURL


And how can I address this in Lazarus?

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trev · 2021-10-15 21:56

@MadRef - see fpcsrc/fpc-3.x.x/packages/univint/src/LSInfo.pas for the
Launch Services Framework.