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https://github.com/huckridgesw/hvue

A GopherJS & go/wasm binding for Vue.js
https://github.com/huckridgesw/hvue

go golang gopherjs-bindings gopherjs-vue vuejs wasm webassembly

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A GopherJS & go/wasm binding for Vue.js

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README 

        
# Intro



hvue is a [GopherJS](https://github.com/gopherjs/gopherjs) and wasm wrapper

for the [Vue](https://vuejs.org/) Javascript framework.



[This (the "master" branch)](https://github.com/HuckRidgeSW/hvue/tree/master)

is the go/wasm + GopherJS version.  It uses

[gopherwasm](https://github.com/gopherjs/gopherwasm) to provide a compatability

layer between go/wasm and GopherJS.  go/wasm is patterned on GopherJS, but

doesn't have all of its capabilities and language-specific "magic".  In

particular, go/wasm doesn't have GopherJS's "dual struct/object" magic, which

allows you to embed a *js.Object in a struct, define struct fields with

`js:"jsName"` tags, and have the compiler automatically change references to

those fields into references to fields in the inner *js.Object.  So to access a

JavaScript object in go/wasm, you have to use a "naked" js.Value and either use

`thing.Get("jsField")` (and related functions) everywhere (ew) or write access

functions (less ew).  You can also write GopherJS in the same style, and

gopherwasm creates a compatability layer so the go/wasm style compiles under

GopherJS.



The GopherJS-only version is tagged as

[v1](https://github.com/HuckRidgeSW/hvue/tree/v1), and also as

[gopherjs](https://github.com/HuckRidgeSW/hvue/tree/gopherjs).



The [wasm](https://github.com/HuckRidgeSW/hvue/tree/wasm) branch still exists,

because I shared it pretty widely, and I want those links to keep working for a

while.



So if you want to use the go/wasm code, and/or also use this exact code in

GopherJS, use this branch.  If you want the GopherJS-only code, use the

[v1](https://github.com/HuckRidgeSW/hvue/tree/v1) or

[gopherjs](https://github.com/HuckRidgeSW/hvue/tree/gopherjs) branch.  **Click

on over to the README in that branch for installation instructions.**  They may

need modification, since they still date to when hvue's "master" branch was

GopherJS-only.



# Install



## Install Go 1.11



See https://golang.org/dl/.



## Install hvue



(Side note: If you skipped it, please make sure you've read the Intro above

about the difference between this (the go/wasm + GopherJS code), and previous

GopherJS-only versions.)



```bash

cd path/to/github.com # in your $GOPATH

mkdir huckridgesw

cd huckridgesw

git clone [email protected]:HuckRidgeSW/hvue.git

```



# Examples & Demos



## Overview



Generally speaking, the

[examples](https://github.com/HuckRidgeSW/hvue/tree/master/examples) follow the

examples in the Vue [guide](https://vuejs.org/v2/guide/).  Some don't, because

the Guide has changed since I wrote the examples.  But most of them do.



[01-introduction](https://github.com/HuckRidgeSW/hvue/tree/master/examples/01-introduction)

has examples from the Vue [Introduction](https://vuejs.org/v2/guide/index.html) page.



[02-lifecycle](https://github.com/HuckRidgeSW/hvue/tree/master/examples/02-lifecycle)

demos Vue [lifecycle hooks](https://vuejs.org/v2/guide/instance.html#Instance-Lifecycle-Hooks)

but does not correspond to any specific example on that page.



[03-computed-basic](https://github.com/HuckRidgeSW/hvue/tree/master/examples/03-computed-basic)

and [04-computed-with-setter](https://github.com/HuckRidgeSW/hvue/tree/master/examples/04-computed-with-setter)

have examples from [Computed Properties and Watchers](https://vuejs.org/v2/guide/computed.html).



And so on.  Links are in the code.



## Running the examples



### GopherJS



```bash

cd path/to/github.com/huckridgesw/hvue

echo "var hvue_wasm = false;" > examples/maybe_wasm.js

gopherjs serve github.com/huckridgesw/hvue # listens on 8080

```



and then

- http://localhost:8080/examples/01-introduction/

- http://localhost:8080/examples/02-lifecycle/

- http://localhost:8080/examples/ for more



### WASM



```bash

cd path/to/github.com/huckridgesw/hvue

echo "var hvue_wasm = true;" > examples/maybe_wasm.js

go run examples/server/main.go # Listens on 8081

cd examples/??-???? # some examples directory

GOARCH=wasm GOOS=js go build -o ${PWD##*/}.wasm main.go # compile wasm

```



and then

- http://localhost:8081/examples/01-introduction/

- http://localhost:8081/examples/02-lifecycle/

- http://localhost:8081/examples/ for more



Remember to recompile after any changes.  There's no facility yet to auto-build

(a-la `gopherjs build -w` or `gopherjs serve`).



### Switching from GopherJS to WASM and back



- Do the appropriate `"echo "var hvue_wasm = ?;" > examples/maybe_wasm.js`.

  (See above.)

- Be sure to do "shift-cmd-R" (Chrome, macOS; other browsers / OSes will vary)

  to reload without using the cache, to get the new `maybe_wasm.js` and/or new

  wasm.  (Actually I'm not sure you need that to get new wasm, since it's

  loaded via an explicit `fetch()` call, but it's probably not a bad idea.)

  Alternatively, in Chrome you can open the developer console, go to the

  network tab, and check "disable cache".  (AIUI only works while said console

  window is open.)



# GoDoc



http://godoc.org/github.com/HuckRidgeSW/hvue