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Simple reflex-platform app with JavaScript interop.
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| let | |
| # ./updater versions.json reflex-platform | |
| fetcher = { owner, repo, rev, sha256, ... }: builtins.fetchTarball { | |
| inherit sha256; | |
| url = "https://github.com/${owner}/${repo}/tarball/${rev}"; | |
| }; | |
| reflex-platform = fetcher (builtins.fromJSON (builtins.readFile ./versions.json)).reflex-platform; | |
| in (import reflex-platform { system = builtins.currentSystem; }).project ({ pkgs, ... }: { | |
| useWarp = true; | |
| withHoogle = false; | |
| packages = { | |
| small-viz = ./.; | |
| }; | |
| shells = { | |
| ghc = ["small-viz"]; | |
| ghcjs = ["small-viz"]; | |
| }; | |
| }) |
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| let | |
| # ./updater versions.json reflex-platform | |
| fetcher = { owner, repo, rev, sha256, ... }: builtins.fetchTarball { | |
| inherit sha256; | |
| url = "https://github.com/${owner}/${repo}/tarball/${rev}"; | |
| }; | |
| reflex-platform = fetcher (builtins.fromJSON (builtins.readFile ./versions.json)).reflex-platform; | |
| pkgs = (import reflex-platform {}).nixpkgs; | |
| project = import ./default.nix; | |
| html = pkgs.writeText "index.html" '' | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script language="javascript" src="all.js"></script> | |
| </head> | |
| <body> | |
| </body> | |
| </html> | |
| ''; | |
| in pkgs.runCommand "glitch" {} '' | |
| mkdir -p $out | |
| cp ${html} $out/index.html | |
| ${pkgs.closurecompiler}/bin/closure-compiler \ | |
| --externs=${project.ghcjs.small-viz}/bin/small-viz.jsexe/all.js.externs \ | |
| --jscomp_off=checkVars \ | |
| --js_output_file="$out/all.js" \ | |
| -O ADVANCED \ | |
| -W QUIET \ | |
| ${project.ghcjs.small-viz}/bin/small-viz.jsexe/all.js | |
| '' |
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| Copyright (c) 2019, Vaibhav Sagar | |
| All rights reserved. | |
| Redistribution and use in source and binary forms, with or without | |
| modification, are permitted provided that the following conditions are met: | |
| * Redistributions of source code must retain the above copyright | |
| notice, this list of conditions and the following disclaimer. | |
| * Redistributions in binary form must reproduce the above | |
| copyright notice, this list of conditions and the following | |
| disclaimer in the documentation and/or other materials provided | |
| with the distribution. | |
| * Neither the name of Vaibhav Sagar nor the names of other | |
| contributors may be used to endorse or promote products derived | |
| from this software without specific prior written permission. | |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| {-# LANGUAGE OverloadedStrings #-} | |
| import Reflex.Dom | |
| import Language.Javascript.JSaddle (liftJSM, toJSVal) | |
| import Viz (viz) | |
| main = mainWidgetWithHead widgetHead $ el "div" $ do | |
| t <- textArea def | |
| e <- _element_raw . fst <$> el' "div" blank | |
| performEvent_ $ ffor (updated (_textArea_value t)) $ \text -> liftJSM $ do | |
| jsE <- toJSVal e | |
| jsT <- toJSVal text | |
| viz jsE jsT | |
| where | |
| widgetHead :: DomBuilder t m => m () | |
| widgetHead = do | |
| script "https://cdn.jsdelivr.net/npm/viz.js@2.1.2/viz.min.js" | |
| script "https://cdn.jsdelivr.net/npm/viz.js@2.1.2/full.render.min.js" | |
| script src = elAttr "script" ("type" =: "text/javascript" <> "src" =: src) blank |
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| import Distribution.Simple | |
| main = defaultMain |
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| cabal-version: >=1.10 | |
| -- Initial package description 'small-viz.cabal' generated by 'cabal init'. | |
| -- For further documentation, see http://haskell.org/cabal/users-guide/ | |
| name: small-viz | |
| version: 0.1.0.0 | |
| -- synopsis: | |
| -- description: | |
| -- bug-reports: | |
| license: BSD3 | |
| license-file: LICENSE | |
| author: Vaibhav Sagar | |
| maintainer: vaibhavsagar@gmail.com | |
| -- copyright: | |
| -- category: | |
| build-type: Simple | |
| extra-source-files: CHANGELOG.md | |
| executable small-viz | |
| main-is: Main.hs | |
| other-modules: Viz | |
| -- other-extensions: | |
| build-depends: base >=4.12 && <4.13 | |
| , lens | |
| , jsaddle | |
| , reflex | |
| , reflex-dom | |
| -- hs-source-dirs: | |
| default-language: Haskell2010 |
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| #! /usr/bin/env nix-shell | |
| #! nix-shell -i bash | |
| #! nix-shell -p curl jq nix | |
| set -eufo pipefail | |
| FILE=$1 | |
| PROJECT=$2 | |
| OWNER=$(jq -r '.[$project].owner' --arg project "$PROJECT" < "$FILE") | |
| REPO=$(jq -r '.[$project].repo' --arg project "$PROJECT" < "$FILE") | |
| DEFAULT_BRANCH=$(jq -r '.[$project].branch // "master"' --arg project "$PROJECT" < "$FILE") | |
| BRANCH=${3:-$DEFAULT_BRANCH} | |
| REV=$(curl "https://api.github.com/repos/$OWNER/$REPO/branches/$BRANCH" | jq -r '.commit.sha') | |
| SHA256=$(nix-prefetch-url --unpack "https://github.com/$OWNER/$REPO/tarball/$REV") | |
| TJQ=$(jq '.[$project] = {owner: $owner, repo: $repo, branch: $branch, rev: $rev, sha256: $sha256}' \ | |
| --arg project "$PROJECT" \ | |
| --arg owner "$OWNER" \ | |
| --arg repo "$REPO" \ | |
| --arg branch "$BRANCH" \ | |
| --arg rev "$REV" \ | |
| --arg sha256 "$SHA256" \ | |
| < "$FILE") | |
| [[ $? == 0 ]] && echo "${TJQ}" >| "$FILE" |
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| { | |
| "reflex-platform": { | |
| "owner": "reflex-frp", | |
| "repo": "reflex-platform", | |
| "branch": "develop", | |
| "rev": "8f4b8973a06f78c7aaf1a222f8f8443cd934569f", | |
| "sha256": "167smg7dyvg5yf1wn9bx6yxvazlk0qk64rzgm2kfzn9mx873s0vp" | |
| } | |
| } |
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| module Viz where | |
| import Language.Javascript.JSaddle | |
| import Control.Lens ((^.)) | |
| viz :: JSVal -> JSVal -> JSM () | |
| viz element string = do | |
| viz <- new (jsg "Viz") () | |
| render <- viz ^. js1 "renderSVGElement" string | |
| result <- render ^. js1 "then" (fun $ \_ _ [e] -> do | |
| outer <- e ! "outerHTML" | |
| element ^. jss "innerHTML" outer) | |
| result ^. js1 "catch" (fun $ \_ _ [err] -> | |
| element ^. jss "innerHTML" err) | |
| pure () |
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