Skip to content

Add snippet sharing support. #11

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 5 commits into from
Jan 10, 2015
Merged

Add snippet sharing support. #11

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
747dee2
Very rough initial implementation of snippet sharing support.
dmitshur Jan 6, 2015
dada667
Use honnef.co/go/js/xhr package for XHR.
dmitshur Jan 7, 2015
2b1855a
Improve share-url style.
dmitshur Jan 7, 2015
d0c6868
Synchronize run so it doesn't happen before snippet finished loading.
dmitshur Jan 9, 2015
af6b3b2
Rebuild playground.js.
dmitshur Jan 9, 2015
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 3 additions & 1 deletion playground/index.html
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,12 @@
<span id="controls">
<input type="button" value="Run" ng-click="run(false)" />
<input type="button" value="Format" ng-click="format()" />
<input type="button" value="Share" ng-click="share()" />
<input type="text" class="show-share-url-{{showShareUrl}}" id="share-url" value="{{shareUrl}}" />
<label><input ng-model="showGenerated" type="checkbox" />Show generated code for main package</label>
</span>
</div>

<div class="box show-generated-{{showGenerated}}" id="content">
<div class="box yellow" id="input">
<textarea ng-model="code" id="code" autocorrect="off" autocomplete="off" autocapitalize="off" spellcheck="false"></textarea>
Expand Down
10 changes: 10 additions & 0 deletions playground/playground.css
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,16 @@ a {
padding: 10px;
}

#share-url {
width: 320px;
font-size: 16px;
border: 1px solid #ccc;
background: #eee;
}
#share-url.show-share-url-false {
display: none;
}

.show-generated-false #generated {
display: none;
}
Expand Down
93 changes: 82 additions & 11 deletions playground/playground.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -13,17 +13,48 @@ import (
"github.com/gopherjs/gopherjs/compiler"
"github.com/gopherjs/gopherjs/js"
"github.com/neelance/go-angularjs"
"honnef.co/go/js/dom"
"honnef.co/go/js/xhr"
)

type Line map[string]string

var output []Line

const snippetStoreHost = "snippets.gotools.org"

func main() {
codeReady := make(chan struct{}) // Used to synchronize when "code" value is ready.

app := angularjs.NewModule("playground", nil, nil)

app.NewController("PlaygroundCtrl", func(scope *angularjs.Scope) {
scope.Set("code", "package main\n\nimport (\n\t\"fmt\"\n\t\"github.com/gopherjs/gopherjs/js\"\n)\n\nfunc main() {\n\tfmt.Println(\"Hello, playground\")\n\tjs.Global.Call(\"alert\", \"Hello, JavaScript\")\n\tprintln(\"Hello, JS console\")\n}\n")
if strings.HasPrefix(dom.GetWindow().Location().Hash, "#/") {
id := dom.GetWindow().Location().Hash[2:]

req := xhr.NewRequest("GET", "http://"+snippetStoreHost+"/p/"+id)
req.ResponseType = xhr.ArrayBuffer
go func() {
err := req.Send(nil)
if err != nil || req.Status != 200 {
scope.Apply(func() {
scope.Set("output", []Line{Line{"type": "err", "content": `failed to load snippet "` + id + `"`}})
})
return
}

data := js.Global.Get("Uint8Array").New(req.Response).Interface().([]byte)
scope.Apply(func() {
scope.Set("code", string(data))
close(codeReady)
})
}()
} else {
scope.Set("code", "package main\n\nimport (\n\t\"fmt\"\n\t\"github.com/gopherjs/gopherjs/js\"\n)\n\nfunc main() {\n\tfmt.Println(\"Hello, playground\")\n\tjs.Global.Call(\"alert\", \"Hello, JavaScript\")\n\tprintln(\"Hello, JS console\")\n}\n")
close(codeReady)
}
scope.Set("shareUrl", "")
scope.Set("showShareUrl", false)
scope.Set("showGenerated", false)
scope.Set("generated", `(generated code will be shown here after clicking "Run")`)

Expand All @@ -42,6 +73,10 @@ func main() {
setupEnvironment(scope)

codeArea := angularjs.ElementById("code")
codeArea.On("input", func(e *angularjs.Event) {
scope.Set("showShareUrl", false)
dom.GetWindow().Location().Hash = ""
})
codeArea.On("keydown", func(e *angularjs.Event) {
toInsert := ""
switch e.KeyCode {
Expand All @@ -62,6 +97,9 @@ func main() {
}
}
if toInsert != "" {
scope.Set("showShareUrl", false)
dom.GetWindow().Location().Hash = ""

start := codeArea.Prop("selectionStart").Int()
end := codeArea.Prop("selectionEnd").Int()
code := scope.Get("code").Str()
Expand Down Expand Up @@ -118,18 +156,18 @@ func main() {
for _, p := range pkgsToLoad {
path := p

req := js.Global.Get("XMLHttpRequest").New()
req.Call("open", "GET", "pkg/"+path+".a.js", true)
req.Set("responseType", "arraybuffer")
req.Set("onload", func() {
if req.Get("status").Int() != 200 {
req := xhr.NewRequest("GET", "pkg/"+path+".a.js")
req.ResponseType = xhr.ArrayBuffer
go func() {
err := req.Send(nil)
if err != nil || req.Status != 200 {
scope.Apply(func() {
scope.Set("output", []Line{Line{"type": "err", "content": `cannot load package "` + path + `"`}})
scope.Set("output", []Line{Line{"type": "err", "content": `failed to load package "` + path + `"`}})
})
return
}

data := js.Global.Get("Uint8Array").New(req.Get("response")).Interface().([]byte)
data := js.Global.Get("Uint8Array").New(req.Response).Interface().([]byte)
packages[path], err = compiler.ReadArchive(path+".a", path, bytes.NewReader(data), importContext.Packages)
if err != nil {
scope.Apply(func() {
Expand All @@ -141,8 +179,7 @@ func main() {
if pkgsReceived == len(pkgsToLoad) {
run(loadOnly)
}
})
req.Call("send")
}()
}
return
}
Expand All @@ -163,7 +200,10 @@ func main() {
js.Global.Call("eval", js.InternalObject(jsCode.String()))
}
scope.Set("run", run)
run(true)
go func() {
<-codeReady // Wait for "code" value to be ready.
run(true)
}()

scope.Set("format", func() {
out, err := format.Source([]byte(scope.Get("code").Str()))
Expand All @@ -174,6 +214,37 @@ func main() {
scope.Set("code", string(out))
scope.Set("output", []Line{})
})

scope.Set("share", func() {
req := xhr.NewRequest("POST", "http://"+snippetStoreHost+"/share")
req.ResponseType = xhr.ArrayBuffer
go func() {
// TODO: Send as binary?
err := req.Send(scope.Get("code").Str())
if err != nil || req.Status != 200 {
scope.Apply(func() {
scope.Set("output", []Line{Line{"type": "err", "content": `failed to share snippet`}})
})
return
}

data := js.Global.Get("Uint8Array").New(req.Response).Interface().([]byte)
scope.Apply(func() {
id := string(data)

dom.GetWindow().Location().Hash = "#/" + id

scope.Set("shareUrl", dom.GetWindow().Location().Str())
scope.Set("showShareUrl", true)
// TODO: Do this better using AngularJS.
// Perhaps using http://stackoverflow.com/questions/14833326/how-to-set-focus-on-input-field/18295416.
go func() {
time.Sleep(time.Millisecond)
dom.GetWindow().Document().GetElementByID("share-url").(*dom.HTMLInputElement).Select()
}()
})
}()
})
})
}

Expand Down
Loading