sync/player/gdrive-player.coffee

window.GoogleDrivePlayer = class GoogleDrivePlayer extends VideoJSPlayer
    constructor: (data) ->
        if not (this instanceof GoogleDrivePlayer)
            return new GoogleDrivePlayer(data)

        super(data)

    load: (data) ->
        if not window.hasDriveUserscript
            window.promptToInstallDriveUserscript()
        else if window.hasDriveUserscript
            window.maybePromptToUpgradeUserscript()
        if typeof window.getGoogleDriveMetadata is 'function'
            setTimeout(=>
                backoffRetry((cb) ->
                    window.getGoogleDriveMetadata(data.id, cb)
                , (error, metadata) =>
                    if error
                        console.error(error)
                        alertBox = window.document.createElement('div')
                        alertBox.className = 'alert alert-danger'
                        alertBox.textContent = error
                        document.getElementById('ytapiplayer').appendChild(alertBox)
                    else
                        data.meta.direct = metadata.videoMap
                        super(data)
                , {
                    maxTries: 3
                    delay: 1000
                    factor: 1.2
                    jitter: 500
                })
            , Math.random() * 1000)

window.promptToInstallDriveUserscript = ->
    if document.getElementById('prompt-install-drive-userscript')
        return
    alertBox = document.createElement('div')
    alertBox.id = 'prompt-install-drive-userscript'
    alertBox.className = 'alert alert-info'
    alertBox.innerHTML = """
Due to continual breaking changes making it increasingly difficult to
maintain Google Drive support, Google Drive now requires installing
a userscript in order to play the video."""
    alertBox.appendChild(document.createElement('br'))
    infoLink = document.createElement('a')
    infoLink.className = 'btn btn-info'
    infoLink.href = '/google_drive_userscript'
    infoLink.textContent = 'Click here for details'
    infoLink.target = '_blank'
    alertBox.appendChild(infoLink)

    closeButton = document.createElement('button')
    closeButton.className = 'close pull-right'
    closeButton.innerHTML = '×'
    closeButton.onclick = ->
        alertBox.parentNode.removeChild(alertBox)
    alertBox.insertBefore(closeButton, alertBox.firstChild)
    removeOld($('<div/>').append(alertBox))

window.tellUserNotToContactMeAboutThingsThatAreNotSupported = ->
    if document.getElementById('prompt-no-gdrive-support')
        return
    alertBox = document.createElement('div')
    alertBox.id = 'prompt-no-gdrive-support'
    alertBox.className = 'alert alert-danger'
    alertBox.innerHTML = """
CyTube has detected an error in Google Drive playback.  Please note that the
staff in CyTube support channels DO NOT PROVIDE SUPPORT FOR GOOGLE DRIVE.  It
is left in the code as-is for existing users, but we will not assist in
troubleshooting any errors that occur.<br>"""
    alertBox.appendChild(document.createElement('br'))
    infoLink = document.createElement('a')
    infoLink.className = 'btn btn-danger'
    infoLink.href = 'https://github.com/calzoneman/sync/wiki/Frequently-Asked-Questions#why-dont-you-support-google-drive-anymore'
    infoLink.textContent = 'Click here for details'
    infoLink.target = '_blank'
    alertBox.appendChild(infoLink)

    closeButton = document.createElement('button')
    closeButton.className = 'close pull-right'
    closeButton.innerHTML = '&times;'
    closeButton.onclick = ->
        alertBox.parentNode.removeChild(alertBox)
    alertBox.insertBefore(closeButton, alertBox.firstChild)
    removeOld($('<div/>').append(alertBox))