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ElectronDisplay.jl
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ElectronDisplay.jl
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__precompile__()
module ElectronDisplay
using Electron
struct ElectronDisplayType <: Base.Display end
function Base.display(d::ElectronDisplayType, ::MIME{Symbol("image/png")}, x)
img = stringmime(MIME("image/png"), x)
payload = string("<img src=\"data:image/png;base64,", img, "\"/>")
w = Electron.Window(payload)
end
Base.displayable(d::ElectronDisplayType, ::MIME{Symbol("image/png")}) = true
function Base.display(d::ElectronDisplayType, ::MIME{Symbol("image/svg+xml")}, x)
payload = stringmime(MIME("image/svg+xml"), x)
w = Electron.Window(payload)
end
Base.displayable(d::ElectronDisplayType, ::MIME{Symbol("image/svg+xml")}) = true
asset(url...) = replace(normpath(joinpath(@__DIR__, "..", "assets", "vega", url...)), "\\", "/")
function Base.display(d::ElectronDisplayType, ::MIME{Symbol("application/vnd.vegalite.v2+json")}, x)
payload = stringmime(MIME("application/vnd.vegalite.v2+json"), x)
html_page = """
<html>
<head>
<script src="file:///$(asset("vega.min.js"))"></script>
<script src="file:///$(asset("vega-lite.min.js"))"></script>
<script src="file:///$(asset("vega-embed.min.js"))"></script>
</head>
<body>
<div id="plotdiv"></div>
</body>
<style media="screen">
.vega-actions a {
margin-right: 10px;
font-family: sans-serif;
font-size: x-small;
font-style: italic;
}
</style>
<script type="text/javascript">
var opt = {
mode: "vega-lite",
actions: false
}
var spec = $payload
vegaEmbed('#plotdiv', spec, opt);
</script>
</html>
"""
w = Electron.Window(html_page, options=Dict("webPreferences" => Dict("webSecurity" => false)))
end
Base.displayable(d::ElectronDisplayType, ::MIME{Symbol("application/vnd.vegalite.v2+json")}) = true
function Base.display(d::ElectronDisplayType, x)
if mimewritable("application/vnd.vegalite.v2+json", x)
display(d,MIME("application/vnd.vegalite.v2+json"), x)
elseif mimewritable("image/svg+xml", x)
display(d,"image/svg+xml", x)
elseif mimewritable("image/png", x)
display(d,"image/png", x)
else
throw(MethodError(Base.display,(d,x)))
end
end
function __init__()
Base.Multimedia.pushdisplay(ElectronDisplayType())
end
end # module