ghcjs-dom alternatives and similar packages
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Web Browser Bindings
ghcjs-dom package contains bindings for most of the functions provided
by modern web browsers.
Applications should use the
ghcjs-dom package and the
it contains to get the best mix of protability and performance (rather than
The best documentation though is for the
package (scroll down to find the modules with doumentation).
This documentation should be accurate for
appart from the module names:
This feature makes it easier to identify the code responsible for the creating DOM Elements. To enable it:
debugcabal flag for the
GHCJS.DOM.Debug.addDebugMenuat the start of your application
To view the stack traces hold down the shift key and right click on
an element. A menu listing the element selected and its parents should apear.
Sub menus will show the stack frames for the
createElement calls that
Adding DomHasCallStack Constraint
To include more stack info add the
GHCJS.DOM.DomHasCallStack constraint to functions
that should show up in the stack trace. Once added the stack trace should reveal where
the function was called.
When the debug flag is disabled
DomHasCallStack will have no affect (it becomes
Opening Source Code
When you click on a stack item the source location is written to stderr like this:
OPEN src/Reflex/Dom/Widget/Basic.hs:(166,41)-(166,71) in reflex-dom-core-0.4-inplace:Reflex.Dom.Widget.Basic
If you are running the code in Leksah's ghci mode it will open the file and select the call site (assuming the package is in the project).
Linking to Source Code on the Web
When publishing open source applications online you can enable debug mode to make it easier to navigate to the code used for different pares of your application.
GHCJS.DOM.Debug.addDebugMenu' function is like
addDebugMenu, but it also
takes a function to convert a
GHC.Stack.SrcLoc to a link (
SrcLoc -> Maybe String).
If a link is returned it is set as the
href on the submenu item. It should
be possible to link to github or hackage.
Generating the Bindings
Make sure to not use any newer webkitgtk as the more recent versions use incompatible new features.