Isomorphic-crystal : Updates :

News
21

On second view,

I think there is really a problem with Crystal WebView under Linux (it has nothing to do with HTMX: I wrote a quick minimalist version of HTMX and the result is the same).

I also suspected a problem caused by shared objects between processes, but eliminating said sharing of state does not solve the issue at hand either.

Having eliminated all other causes, I believe that the issue rests with WebView for Crystal (Linux version).

On short term, I will publish a version of I.C. which uses Chrome instead of Webview for the Linux platform, until I find a replacement for WebView

Perhaps, I will later try to use ECF instead of VebView.

22

The latest version of https://github.com/serge-hulne/isomorphic-crystal-examples compiles now to two different versions, depending upon the platform (automatically detected at compile-time).

  • The Mac version uses WebView.
  • The Linux version uses Google Chrome as a replacement for WebView (the app still look the same and the functionalities are the same)

Both versions work now as expected.

Linux version:

image
image1887×1762 48.8 KB

4 Likes
23

In theory, the solution applied for Linux should work for Windows as well, mutatis mutandis.

(I’ll check it as soon as I build a new windows PC)

1 Like
24

Isomorphic Crystal now uses “Isomorphic” (a dedicated, lightweight, open source, browser based on the C++ source of WebView) instead of Chrome.

Isomorphic has to be installed before compiling (and/or before using) Isomorphic Crystal.

2 Likes
25

Hi, Makefile in Linux need all command must start with a TAB.

so, your Makefile not works on linux.

 ╰─ $ make
Makefile:12: *** missing separator.  Stop.

Check following fixed version screenshot.

image
image978×702 65.9 KB

26

Could you please try again. I tried to fix it?

Thanks

1 Like
27

Got some warning while building, but the browser works fine!

➜  isomorphic git:(main) make
gcc -c isomorphic.c -std=c99 
In file included from isomorphic.c:1:
webview.h:2745:18: warning: missing terminating " character
 2745 |           js += R"js(;
      |                  ^
webview.h:2761:8: warning: missing terminating " character
 2761 | })())js";
      |        ^
g++ -c webview.cc -std=c++11 -DWEBVIEW_STATIC  `pkg-config --cflags gtk+-3.0 webkit2gtk-4.0` -o webview.o
In file included from webview.cc:1:
webview.h: In member function ‘void webview::detail::gtk_webkit_engine::eval(const string&)’:
webview.h:689:35: warning: ‘void webkit_web_view_run_javascript(WebKitWebView*, const gchar*, GCancellable*, GAsyncReadyCallback, gpointer)’ is deprecated: Use 'webkit_web_view_evaluate_javascript' instead [-Wdeprecated-declarations]
  689 |     webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(m_webview), js.c_str(),
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  690 |                                    nullptr, nullptr, nullptr);
      |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/webkitgtk-4.0/webkit/WebKitPrintOperation.h:29,
                 from /usr/include/webkitgtk-4.0/webkit2/webkit2.h:72,
                 from webview.h:579,
                 from webview.cc:1:
/usr/include/webkitgtk-4.0/webkit/WebKitWebView.h:526:1: note: declared here
  526 | webkit_web_view_run_javascript                       (WebKitWebView             *web_view,
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ isomorphic.o webview.o `pkg-config --libs gtk+-3.0 webkit2gtk-4.0` -o isomorphic
1 Like
28

Thank you for your feedback!

These warnings are related to WebKit per se, I can only transmit the information to the developers of WebKit.

Glad to hear it appears to work.

I think, it is the best solution for far.

29

Hi, i suggest hide(or delete) those old/experimental isomorphic related projects in your github, i consider too much, don’t know which one is the current used library.

2 Likes
30

You’re right!

I’ll do some renaming / deleting / cleaning in the coming days.

:slight_smile:

31

The new repos are organised as follows:

Since the browser used by the examples has been modified, it is necessary to upgrade to the new version before trying to compile the examples.

git clone https://github.com/serge-hulne/isomorphic
cd isomorphic
make
make install
32

where is https://github.com/serge-hulne/isomorphic? it rename to isomorphic-crystal-browser, right?

BTW: browser build successful, but segmentation fault use newest master. (it used to work)

 ╰─ $  isomorphic http://www.baidu.com
Segmentation fault (core dumped)
33
  1. Yes, the dedicated browser (isomorphic) is at the URL : isomorphic-crystal-browser
  2. The usage is (for instance) : isomorphic -p http://www.google.com -t Google -h 600 - w 800

(In the future I will add code to check for missing arguments and to display an help text).

1 Like
34

I did a fresh install (with the git clone)
Did a make, but not a make install, started the browser with the given parameters, but that also got a core dump:

➜  isomorphic git:(main) ✗ ./isomorphic -p http://www.google.com -t Google -h 600 - w 800
Option -p (Path) with argument http://www.google.com
Option -t (Title) with argument Google
Option -h (Height) with argument 600
[1]    12059 segmentation fault (core dumped)  ./isomorphic -p http://www.google.com -t Google -h 600 - w 800
35

The example is broken, you can try like this:

 ./isomorphic -p http://www.google.com -t Google -h 600 -w 800
36

Just added default values for isomorphic

37

Just added default values for isomorphic.

To install:

make && make install

38

Yes, it works now!

39

Added a third example: The same counter, but the buttons only react to double-clicks.

1 Like