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player.coffee
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player.coffee
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# Requires `/common`
# Requires `/support/lyt/loader`
# -------------------
# This module handles playback of current media and timing of transcript updates
# TODO: provide a visual cue on the next and previous section buttons if there are no next or previous section.
LYT.player =
SILENTMEDIA: "http://m.nota.nu/sound/dixie.mp3" # FIXME: dixie chicks as we test, replace with silent mp3 when moving to production
PROGRESSION_MODES:
MP3: 'mp3'
TEXT: 'text'
ready: false
el: null
media: null
section: null
time: ""
book: null #reference to an instance of book class
playlist: null # reference to an instance of LYT.Playlist
nextButton: null
previousButton: null
playIntentOffset: null
playIntentFlag: false
autoProgression: true
toggleAutoProgression: null
progressionMode: null
fakeEndScheduled: false
_iBug: false
playAttemptCount: 0
gotDuration : false
lastBookmark: null
init: ->
log.message 'Player: starting initialization'
# Initialize jplayer and set ready True when ready
@el = jQuery("#jplayer")
@nextButton = jQuery("a.next-section")
@previousButton = jQuery("a.previous-section")
@progressionMode = @PROGRESSION_MODES.MP3
jplayer = @el.jPlayer
ready: =>
@ready = true
log.message 'Player: initialization complete'
#@el.jPlayer('setMedia', {mp3: @SILENTMEDIA})
#todo: add a silent state where we do not play on can play
$.jPlayer.timeFormat.showHour = true
# TODO: Disable next/prev buttons if there are not next/prev sections?
jumpTo = (@media) =>
# Use Math.ceil() to prevent jPlayer from approximating to a slightly
# earlier point in time, which will cause the wrong media-object to be
# loaded
if @getStatus()?.paused
@el.jPlayer "pause", Math.ceil(@media.start)
else
@el.jPlayer "play", Math.ceil(@media.start)
@renderTranscript()
@nextButton.click =>
if @media?.hasNext()
jumpTo @media.getNext()
else
@nextSection()
false
@previousButton.click =>
if @media?.hasPrevious()
jumpTo @media.getPrevious()
else
@previousSection()
false
timeupdate: (event) =>
#@fakeEnd(event.jPlayer.status)
@updateHtml(event.jPlayer.status)
loadstart: (event) =>
log.message 'Player: load start'
if(@playAttemptCount < 1 and ($.jPlayer.platform.iphone or $.jPlayer.platform.ipad or $.jPlayer.platform.iPod))
if (!LYT.config.player.IOSFirstPlay and $.mobile.activePage[0].id is 'book-play')
# IOS will not AutoPlay...
LYT.loader.set('Loading sound', 'metadata')
else if(@playAttemptCount < 1 and $.mobile.activePage[0].id is 'book-play')
#Only make the loading sign the first time...
LYT.loader.set('Loading sound', 'metadata')
return if $.jPlayer.platform.android
if ($.jPlayer.platform.iphone or $.jPlayer.platform.ipad or $.jPlayer.platform.iPod)
return
return unless jQuery.browser.webkit
@updateHtml(event.jPlayer.status)
@playOnIntent()
ended: (event) =>
if @autoProgression
@nextSection true
pause: (event) =>
status = event.jPlayer.status
return unless @isIOS()
if @_iBug
log.warn 'we are ibug'
#@el.jPlayer('load')
else if status.duration > 0 and jQuery.jPlayer.convertTime(status.duration) is not 'NaN' and jQuery.jPlayer.convertTime(status.duration) is not '00:00' and (status.currentTime is 0 or status.currentTime is status.duration)
log.warn 'set ibug'
@_iBug = true
if @autoProgression
@nextSection true
seeked: (event) =>
log.message 'Player: event seeked'
LYT.loader.close('metadata')
@playOnIntent()
loadedmetadata: (event) =>
log.message 'Player: loaded metadata'
if isNaN( event.jPlayer.status.duration )
#alert event.jPlayer.status.duration
if(@getStatus().src == @media.audio && @playAttemptCount <= LYT.config.player.playAttemptLimit )
@el.jPlayer "setMedia", {mp3: @media.audio}
@el.jPlayer "load"
@playAttemptCount = @playAttemptCount + 1
log.message @playAttemptCount
else if ( @playAttemptCount > LYT.config.player.playAttemptLimit)
@gotDuration = true
#faking that we got the duration - we don´t but need to play the file now...
else
@gotDuration = true
@playAttemptCount = 0
#LYT.loader.close('metadata')
canplay: (event) =>
log.message 'Player: event can play'
if @gotDuration
@gotDuration = false
#@el.data('jPlayer').htmlElement.audio.currentTime = @playIntentOffset
#@pause(@playIntentOffset)
if @playIntentOffset? and @playIntentOffset > 0 and @isIOS()
if LYT.config.player.IOSFirstPlay
@pause()
else
@playOnIntent()
LYT.loader.close('metadata')
canplaythrough: (event) =>
log.message 'Player: event can play through'
if @playIntentOffset? and @playIntentOffset > 0 and @isIOS()
log.message @isIOS()
if LYT.config.player.IOSFirstPlay
LYT.config.player.IOSFirstPlay = false;
@el.data('jPlayer').htmlElement.audio.currentTime = @playIntentOffset
@el.data('jPlayer').htmlElement.audio.play()
else
@pause(@playIntentOffset)
@playOnIntent()
LYT.loader.close('metadata')
else if LYT.config.player.IOSFirstPlay and @isIOS()
LYT.config.player.IOSFirstPlay = false;
#@el.data('jPlayer').htmlElement.audio.currentTime = parseFloat("6.4");
#log.message @el.data('jPlayer').htmlElement.audio.currentTime
#LYT.loader.close('metadata')
#@playOnIntent()
progress: (event) =>
log.message 'Player: event progress'
#LYT.loader.close('metadata')
#@playOnIntent()
error: (event) =>
switch event.jPlayer.error.type
when $.jPlayer.error.URL
log.message 'jPlayer: url error'
$("#submenu").simpledialog({
'mode' : 'bool',
'prompt' : 'Der er opstået en fejl!',
'subTitle' : 'kunne ikke hente bogen.'
'animate': false,
'useDialogForceFalse': true,
'allowReopen': true,
'useModal': true,
'buttons' : {
'Prøv igen':
click: (event) ->
window.location.reload()
,
theme: "c"
,
'Anuller':
click: (event) ->
$.mobile.changePage "#bookshelf"
,
theme: "c"
,
}
})
#reopen the dialog...
#TODO: this is usually because something is wrong with the session or the internet connection,
# tell people to try and login again, check their internet connection or try again later
when $.jPlayer.error.NO_SOLUTION
log.message 'jPlayer: no solution error, you need to install flash or update your browser.'
#TODO: send people to a link where they can download flash or update their browser
swfPath: "./lib/jPlayer/"
supplied: "mp3"
solution: 'html, flash'
fakeEnd: (status) ->
return unless status.duration > 0 and status.currentTime > 1
timeleft = status.duration - status.currentTime
if timeleft < 1 and timeleft > 0
#log.message @fakeEndScheduled
if @fakeEndScheduled is false
@fakeEndScheduled = true
log.warn "Player: media is #{timeleft} seconds from ending but we can't handle endings - schedule a fake end just before"
setTimeout (
=>
@nextSection true
@fakeEndScheduled = false ),
(timeleft*1000)-50
pause: (time) ->
# Pause playback
log.message "pause at " + time
if time?
@playIntentOffset = time
@el.jPlayer('pause', time)
else
#@playIntentOffset = null
@el.jPlayer('pause')
getStatus: ->
# Be cautious only read from status
@el.data('jPlayer').status
silentPlay: () ->
###
IOS does not allow playing audio without a direct connection to a click event
we get around this here by starting playback of a silent audio file while
the book media loads.
###
@el.jPlayer('setMedia', {mp3: @SILENTMEDIA})
@play(0)
stop: () ->
if @ready?
@el.jPlayer('stop')
clear: () ->
if @ready?
@el.jPlayer('clearMedia')
isIOS: () ->
if /iPad/i.test(navigator.userAgent) or /iPhone/i.test(navigator.userAgent) or /iPod/i.test(navigator.userAgent)
return true
else
return false
playOnIntent: () ->
# Calls play and resets flag if the intent flag was set
if @playIntentFlag
#@playAttemptCount = 0
log.message 'Player: play intent used offset is #{@playIntentOffset}'
@playIntentFlag = false
@play(@playIntentOffset, false)
@playIntentOffset = null
play: (time, setIntent = true) ->
# Start or resume playing if media is loaded
# Starts playing at time seconds if specified, else from
#if time is not ""
#@pause(time)
log.message " her er time" + time
log.message " her er setIntent" + setIntent
if setIntent
log.message 'Player: play intent flag set'
@playIntentFlag = true
@playIntentOffset = time
else
log.message 'Player: Play'
@el.jPlayer('play')
updateHtml: (status) ->
# Continously update player rendering for current time of section
return unless @book?
@time = status.currentTime
if(LYT.session.getCredentials().username isnt LYT.config.service.guestLogin)
@updateLastMark()
return if @media? and @media.start <= @time < @media.end
@media = @section.mediaAtOffset @time
if @media and not @getStatus()?.paused
if(LYT.session.getCredentials().username isnt LYT.config.service.guestLogin)
@updateLastMark()
log.warn "Player: failed to get media segment for offset #{@time}" unless @media?
@renderTranscript()
renderTranscript: () ->
if @media?
LYT.render.textContent(@media)
return
# If there's no media, show nothing
jQuery("#book-text-content").empty()
whenReady: (callback) ->
if @ready
callback()
else
@el.bind $.jPlayer.event.ready, callback
load: (book, section = null, offset = 0, autoPlay = true) ->
#return if book.id is @book?.id
@book = book
#LYT.loader.register "Loading book", @book
log.message "Player: Loading book #{book.id}, setion #{section}, offset: #{offset}"
@book.done =>
jQuery("#book-duration").text @book.totalTime
@whenReady =>
@playlist = book.getPlaylist section
@playlist.done =>
@playSection @playlist.getCurrentSection(), offset, autoPlay
@playlist.fail =>
log.error "Player: Failed to get playlist"
playSection: (section, offset = 0, autoPlay = true) ->
#return if section is @section
@section = section
LYT.loader.register "Loading book", @section
@section.done =>
log.message "Player: Playlist current section #{@section.id}"
jQuery("#player-chapter-title h2").text section.title
# Preload the next/prev sections
@playlist.getNextSection() if @playlist.hasNextSection()
@playlist.getPreviousSection() if @playlist.hasPreviousSection()
# Get the media obj
@media = @section.mediaAtOffset offset
@renderTranscript()
if @media?
@el.jPlayer "setMedia", {mp3: @media.audio}
#@playAttemptCount = 3
#alert playAttemptCount
else
# If no media was found, check whether the section has a single,
# unambiguous MP3 file, we can load instead
log.warn "Player: failed to get media"
mp3s = @section.getAudioUrls()
if mp3s.length isnt 1
# No media, no MP3: Just give up...
log.error "Player: Couldn't determine MP3 file"
return
@el.jPlayer "setMedia", {mp3: mp3s.pop()}
@el.jPlayer "load"
if autoPlay
@play offset
else
@pause offset
@section.fail ->
log.error "Player: Failed to load section #{section}"
nextSection: (autoPlay = false) ->
#@playlist.
return null unless @playlist?.hasNextSection()
section = @playlist.getNextSection()
#if $.mobile.activePage.attr('id') is 'book-play'
# $.mobile.changePage "#book-play?book=#{@book.id}§ion=#{section.id}", {transition: 'none'}
#else
@playSection @playlist.next(), 0, (autoPlay or @getStatus()?.paused is false)
previousSection: (autoPlay = false) ->
return null unless @playlist?.hasPreviousSection()
section = @playlist.getPreviousSection()
#if $.mobile.activePage.attr('id') is 'book-play'
# $.mobile.changePage "#book-play?book=#{@book.id}§ion=#{section.id}", {transition: 'none'}
#else
@playSection @playlist.previous(), 0, (autoPlay or @getStatus()?.paused is false)
updateLastMark: (force = false) ->
return unless @book? and @section?
now = (new Date).getTime()
interval = LYT.config.player?.lastmarkUpdateInterval or 10000
return unless force or not @lastBookmark or now-@lastBookmark > interval
if @getStatus().currentTime is 0
return
log.message "bookmark" + @getStatus().currentTime
@book.setLastmark @section.id, @getStatus().currentTime
@lastBookmark = now
getCurrentlyPlaying: ->
return null unless @book? and @section?
book: @book.id
section: @section.id
getCurrentlyPlayingUrl: (absolute=true, resolution='book') ->
# Returns the url of the currently playing book
# Accepts a resolution a string that is either 'book', 'section' or 'offset'
# Defaults to 'book'
# If absolute is true it returns the full url with domain
return null unless @book? and @section?
url = "#book-play?book=#{@book.id}"
if resolution in ['section', 'offset']
url = url + "§ion=#{@section.id}"
if resolution is 'offset' and @time?
url = url + "&offset=#{@time}"
if absolute
return document.baseURI + url
return url