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#
#
# Nim's Runtime Library
# (c) Copyright 2012 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This module implements a simple proc for opening URLs with the user's
## default browser.
##
## Unstable API.
import std/private/since # used by the deprecated `openDefaultBrowser()`
import std/strutils
when defined(nimPreviewSlimSystem):
import std/assertions
when defined(windows):
import std/winlean
when defined(nimPreviewSlimSystem):
import std/widestrs
from std/os import absolutePath
else:
import std/os
when not defined(osx):
import std/osproc
const osOpenCmd* =
when defined(macos) or defined(macosx) or defined(windows): "open" else: "xdg-open" ## \
## Alias for the operating system specific *"open"* command,
## `"open"` on OSX, MacOS and Windows, `"xdg-open"` on Linux, BSD, etc.
proc prepare(s: string): string =
if s.contains("://"):
result = s
else:
result = "file://" & absolutePath(s)
proc openDefaultBrowserRaw(url: string) =
## note the url argument should be alreadly prepared, i.e. the url is passed "AS IS"
when defined(windows):
var o = newWideCString(osOpenCmd)
var u = newWideCString(url)
discard shellExecuteW(0'i32, o, u, nil, nil, SW_SHOWNORMAL)
elif defined(macosx):
discard execShellCmd(osOpenCmd & " " & quoteShell(url))
else:
var u = quoteShell(url)
if execShellCmd(osOpenCmd & " " & u) == 0: return
for b in getEnv("BROWSER").split(PathSep):
try:
# we use `startProcess` here because we don't want to block!
discard startProcess(command = b, args = [url], options = {poUsePath})
return
except OSError:
discard
proc openDefaultBrowser*(url: string) =
## Opens `url` with the user's default browser. This does not block.
## The URL must not be empty string, to open on a blank page see `openDefaultBrowser()`.
##
## Under Windows, `ShellExecute` is used. Under Mac OS X the `open`
## command is used. Under Unix, it is checked if `xdg-open` exists and
## used if it does. Otherwise the environment variable `BROWSER` is
## used to determine the default browser to use.
##
## This proc doesn't raise an exception on error, beware.
##
## ```nim
## block: openDefaultBrowser("https://nim-lang.org")
## ```
doAssert url.len > 0, "URL must not be empty string"
openDefaultBrowserRaw(url)
proc openDefaultBrowser*() {.since: (1, 1), deprecated:
"not implemented, please open with a specific url instead".} =
## Intends to open the user's default browser without any `url` (blank page).
## This does not block.
## Intends to implement IETF RFC-6694 Section 3,
## ("about:blank" is reserved for a blank page).
##
## Beware that this intended behavior is **not** implemented and
## considered not worthy to implement here.
##
## The following describes the behavior of current implementation:
##
## - Under Windows, this will only cause a pop-up dialog \
## asking the assocated application with `about` \
## (as Windows simply treats `about:` as a protocol like `http`).
## - Under Mac OS X the `open "about:blank"` command is used.
## - Under Unix, it is checked if `xdg-open` exists and used \
## if it does and open the application assocated with `text/html` mime \
## (not `x-scheme-handler/http`, so maybe html-viewer \
## other than your default browser is opened). \
## Otherwise the environment variable `BROWSER` is used \
## to determine the default browser to use.
##
## This proc doesn't raise an exception on error, beware.
##
## ```nim
## block: openDefaultBrowser()
## ```
##
## **See also:**
##
## * https://tools.ietf.org/html/rfc6694#section-3
openDefaultBrowserRaw("about:blank") # See IETF RFC-6694 Section 3.
|
