diff options
Diffstat (limited to 'node_modules/core-js/modules/$.task.js')
| -rw-r--r-- | node_modules/core-js/modules/$.task.js | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/node_modules/core-js/modules/$.task.js b/node_modules/core-js/modules/$.task.js new file mode 100644 index 000000000..5d7759e61 --- /dev/null +++ b/node_modules/core-js/modules/$.task.js @@ -0,0 +1,75 @@ +var ctx = require('./$.ctx') + , invoke = require('./$.invoke') + , html = require('./$.html') + , cel = require('./$.dom-create') + , global = require('./$.global') + , process = global.process + , setTask = global.setImmediate + , clearTask = global.clearImmediate + , MessageChannel = global.MessageChannel + , counter = 0 + , queue = {} + , ONREADYSTATECHANGE = 'onreadystatechange' + , defer, channel, port; +var run = function(){ + var id = +this; + if(queue.hasOwnProperty(id)){ + var fn = queue[id]; + delete queue[id]; + fn(); + } +}; +var listner = function(event){ + run.call(event.data); +}; +// Node.js 0.9+ & IE10+ has setImmediate, otherwise: +if(!setTask || !clearTask){ + setTask = function setImmediate(fn){ + var args = [], i = 1; + while(arguments.length > i)args.push(arguments[i++]); + queue[++counter] = function(){ + invoke(typeof fn == 'function' ? fn : Function(fn), args); + }; + defer(counter); + return counter; + }; + clearTask = function clearImmediate(id){ + delete queue[id]; + }; + // Node.js 0.8- + if(require('./$.cof')(process) == 'process'){ + defer = function(id){ + process.nextTick(ctx(run, id, 1)); + }; + // Browsers with MessageChannel, includes WebWorkers + } else if(MessageChannel){ + channel = new MessageChannel; + port = channel.port2; + channel.port1.onmessage = listner; + defer = ctx(port.postMessage, port, 1); + // Browsers with postMessage, skip WebWorkers + // IE8 has postMessage, but it's sync & typeof its postMessage is 'object' + } else if(global.addEventListener && typeof postMessage == 'function' && !global.importScripts){ + defer = function(id){ + global.postMessage(id + '', '*'); + }; + global.addEventListener('message', listner, false); + // IE8- + } else if(ONREADYSTATECHANGE in cel('script')){ + defer = function(id){ + html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function(){ + html.removeChild(this); + run.call(id); + }; + }; + // Rest old browsers + } else { + defer = function(id){ + setTimeout(ctx(run, id, 1), 0); + }; + } +} +module.exports = { + set: setTask, + clear: clearTask +};
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