mirror of
https://github.com/flynx/ImageGrid.git
synced 2025-10-31 03:10:07 +00:00
172 lines
4.2 KiB
JavaScript
Executable File
172 lines
4.2 KiB
JavaScript
Executable File
/**********************************************************************
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*
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* Core features that setup the life-cycle and the base interfaces for
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* features to use...
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*
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*
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**********************************************************************/
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define(function(require){ var module = {}
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//var DEBUG = DEBUG != null ? DEBUG : true
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var actions = require('lib/actions')
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var features = require('lib/features')
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/*********************************************************************/
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var ImageGridFeatures =
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module.ImageGridFeatures = Object.create(features.FeatureSet)
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// setup exit...
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if(typeof(process) != 'undefined'){
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// NOTE: if this passes it is async while when fails it's sync, this
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// is why we set .runtime to 'nw' optimistically in advance so
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// as not to wait if all goes well and set it to 'node' in the
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// callback that if fails will fail right away...
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ImageGridFeatures.runtime = 'nw'
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requirejs(['nw.gui'],
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// OK: nw.js
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function(){},
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// ERR: pure node.js...
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function(){ ImageGridFeatures.runtime = 'node' })
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// browser...
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} else if(typeof(window) != 'undefined'){
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ImageGridFeatures.runtime = 'browser'
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// unknown...
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} else {
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ImageGridFeatures.runtime = 'unknown'
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}
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/*********************************************************************/
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// XXX should this be a generic library thing???
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// XXX should his have state???
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// ...if so, should this be a toggler???
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var LifeCycleActions = actions.Actions({
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start: ['- System/',
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function(){
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var that = this
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this.logger && this.logger.emit('start')
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// NOTE: jQuery currently provides no way to check if an event
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// is bound so we'll need to keep track manually...
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if(this.__stop_handler == null){
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var stop = this.__stop_handler = function(){ that.stop() }
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} else {
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return
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}
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// set the runtime...
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var runtime = this.runtime = ImageGridFeatures.runtime
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// nw.js...
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if(runtime == 'nw'){
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var gui = requirejs('nw.gui')
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// this handles both reload and close...
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$(window).on('beforeunload', stop)
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// NOTE: we are using both events as some of them do not
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// get triggered in specific conditions and some do,
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// for example, this gets triggered when the window's
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// 'X' is clicked while does not on reload...
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this.__nw_stop_handler = function(){
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var w = this
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try{
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that
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// wait till ALL the handlers finish before
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// exiting...
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.on('stop.post', function(){
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w.close(true)
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})
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.stop()
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// in case something breaks exit...
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// XXX not sure if this is correct...
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} catch(e){
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this.close(true)
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}
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}
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gui.Window.get().on('close', this.__nw_stop_handler)
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// node.js...
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} else if(runtime == 'node'){
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process.on('exit', stop)
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// browser...
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} else if(runtime == 'browser'){
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$(window).on('beforeunload', stop)
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// other...
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} else {
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// XXX
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}
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}],
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// unbind events...
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stop: ['- System/',
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function(){
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// browser & nw...
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if(this.__stop_handler
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&& (this.runtime == 'browser' || this.runtime == 'nw')){
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$(window).off('beforeunload', this.__stop_handler)
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}
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// nw...
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if(this.__nw_stop_handler && this.runtime == 'nw'){
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var gui = requirejs('nw.gui')
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gui.Window.get().off('close', this.__nw_stop_handler)
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delete this.__nw_stop_handler
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}
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// node...
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/* XXX there's no process.off(...)
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if(this.__stop_handler && this.runtime == 'node'){
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process.off('exit', this.__stop_handler)
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}
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*/
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delete this.__stop_handler
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this.logger && this.logger.emit('stop')
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}],
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/*
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// XXX need a clear protocol for this...
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// something like:
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// - clear state
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// - load state
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reset: ['System/',
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function(){
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}],
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*/
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})
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var LifeCycle =
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module.LifeCycle = ImageGridFeatures.Feature({
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title: '',
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doc: '',
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tag: 'lifecycle',
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priority: 'high',
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actions: LifeCycleActions,
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})
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/**********************************************************************
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* vim:set ts=4 sw=4 : */
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return module })
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