Sha256: 80319418ed4fb6de98093d5ab094045acfdb77bb67312748621f71b45d123ff2
Contents?: true
Size: 1.62 KB
Versions: 8
Compression:
Stored size: 1.62 KB
Contents
require 'dxopal/remote_resource'
module DXOpal
class Sound < RemoteResource
RemoteResource.add_class(Sound)
# Return AudioContext
def self.audio_context
@@audio_context ||= %x{
new (window.AudioContext||window.webkitAudioContext)
}
end
# Load remote sound (called via Window.load_resources)
def self._load(path_or_url)
snd = new(path_or_url)
snd_promise = %x{
new Promise(function(resolve, reject) {
var request = new XMLHttpRequest();
request.open('GET', #{path_or_url}, true);
request.responseType = 'arraybuffer';
request.onload = function() {
var audioData = request.response;
var context = #{Sound.audio_context};
context.decodeAudioData(audioData, function(decoded) {
snd['$decoded='](decoded);
resolve();
});
};
request.send();
});
}
return snd, snd_promise
end
def initialize(path_or_url)
@path_or_url = path_or_url # Used in error message
end
attr_accessor :decoded
# Play this sound once
def play
raise "Sound #{path_or_url} is not loaded yet" unless @decoded
source = nil
%x{
var context = #{Sound.audio_context};
source = context.createBufferSource();
source.buffer = #{@decoded};
source.connect(context.destination);
source.start(0);
}
@source = source
end
# Stop playing this sound (if playing)
def stop
return unless @decoded
return unless @source
@source.JS.stop()
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems