nimforum/redesign/karaxutils.nim
2018-05-12 14:08:08 +01:00

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1.9 KiB
Nim

import strutils, options
import dom except window
include karax/prelude
import karax / [kdom]
const appName = "/karax/"
proc class*(classes: varargs[tuple[name: string, present: bool]],
defaultClasses: string = ""): string =
result = defaultClasses & " "
for class in classes:
if class.present: result.add(class.name & " ")
proc makeUri*(relative: string, appName=appName, includeHash=false): string =
## Concatenates ``relative`` to the current URL in a way that is
## (possibly) sane.
var relative = relative
assert appName in $window.location.pathname
if relative[0] == '/': relative = relative[1..^1]
return $window.location.protocol & "//" &
$window.location.host &
appName &
relative &
$window.location.search &
(if includeHash: $window.location.hash else: "")
proc makeUri*(relative: string, params: varargs[(string, string)],
appName=appName, includeHash=false): string =
var query = ""
for i in 0 ..< params.len:
let param = params[i]
if i != 0: query.add("&")
query.add(param[0] & "=" & param[1])
if query.len > 0:
makeUri(relative & "?" & query, appName)
else:
makeUri(relative, appName)
proc navigateTo*(uri: cstring) =
# TODO: This was annoying. Karax also shouldn't have its own `window`.
dom.pushState(dom.window.history, 0, cstring"", uri)
# Fire the popState event.
dom.window.dispatchEvent(newEvent("popstate"))
proc anchorCB*(e: kdom.Event, n: VNode) = # TODO: Why does this need disamb?
e.preventDefault()
# TODO: Why does Karax have it's own Node type? That's just silly.
let url = cast[dom.Node](n.dom).getAttribute(cstring"href")
navigateTo(url)
type
FormData* = ref object
proc newFormData*(form: dom.Element): FormData
{.importcpp: "new FormData(@)", constructor.}
proc get*(form: FormData, key: cstring): cstring
{.importcpp: "#.get(@)".}