neft/runtimes/ios/Neft/svgToImage.coffee

Universal Platform

'use strict'

canvas = document.createElement 'canvas'
ctx = canvas.getContext '2d'

window.svgToImage = (dataUri, width, height, callback) ->
    img = new Image
    img.src = "data:image/svg+xml;utf8,#{atob(dataUri)}"

    onLoaded = ->
        if width isnt 0
            img.width = width
        if height isnt 0
            img.height = height

        width = canvas.width = img.width
        height = canvas.height = img.height

        ctx.drawImage img, 0, 0

        callback canvas.toDataURL "image/png"

    onError = ->
        callback ""

    if img.naturalWidth > 0
        onLoaded()
    else
        img.onload = onLoaded
        img.onerror = onError

    return