b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
24 lines
No EOL
3.8 KiB
JavaScript
24 lines
No EOL
3.8 KiB
JavaScript
;;'use strict';(function(exports){var datastore;var DATASTORE_NAME='bookmarks_store';var readyState;var listeners=Object.create(null);function init(){return new Promise(function doInit(resolve,reject){if(readyState==='initialized'){resolve();return;}
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if(readyState==='initializing'){document.addEventListener('ds-initialized',function oninitalized(){document.removeEventListener('ds-initialized',oninitalized);resolve();});return;}
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readyState='initializing';if(!navigator.getDataStores){console.error('Bookmark store: DataStore API is not working');reject({name:'NO_DATASTORE'});readyState='failed';return;}
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navigator.getDataStores(DATASTORE_NAME).then(function(ds){if(ds.length<1){console.error('Bookmark store: Cannot get access to the Store');reject({name:'NO_ACCESS_TO_DATASTORE'});readyState='failed';return;}
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datastore=ds[0];datastore.addEventListener('change',onchangeHandler);readyState='initialized';document.dispatchEvent(new CustomEvent('ds-initialized'));resolve();},reject);});}
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function doGetAll(resolve,reject){var result=Object.create(null);var cursor=datastore.sync();function cursorResolve(task){switch(task.operation){case'update':case'add':result[task.data.id]=task.data;break;case'remove':delete result[task.data.id];break;case'clear':result=Object.create(null);break;case'done':resolve(result);return;}
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cursor.next().then(cursorResolve,reject);}
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cursor.next().then(cursorResolve,reject);}
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function get(id){return new Promise(function doGet(resolve,reject){init().then(function onInitialized(){datastore.get(id).then(resolve,reject);},reject);});}
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function getAll(){return new Promise(function doGet(resolve,reject){init().then(doGetAll.bind(null,resolve,reject),reject);});}
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function onchangeHandler(event){var operation=event.operation;var callbacks=listeners[operation];callbacks&&callbacks.forEach(function iterCallback(callback){datastore.get(event.id).then(function got(result){callback.method.call(callback.context||this,{type:operation,target:result||event});});});}
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function addEventListener(type,callback){var context;if(!(type in listeners)){listeners[type]=[];}
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var cb=callback;if(typeof cb==='object'){context=cb;cb=cb.handleEvent;}
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if(cb){listeners[type].push({method:cb,context:context});init();}}
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function removeEventListener(type,callback){if(!(type in listeners)){return false;}
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var callbacks=listeners[type];var length=callbacks.length;for(var i=0;i<length;i++){var thisCallback=callback;if(typeof thisCallback==='object'){thisCallback=callback.handleEvent;}
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if(callbacks[i]&&callbacks[i].method===thisCallback){callbacks.splice(i,1);return true;}}
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return false;}
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function add(data){return new Promise(function doAdd(resolve,reject){init().then(function onInitialized(){var id=data.url;Object.defineProperty(data,'id',{enumerable:true,configurable:false,writable:false,value:id});datastore.add(data,id).then(function add_success(){resolve(true);},function add_error(){datastore.put(data,id).then(function put_success(){resolve();},reject);});},reject);});}
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function getRevisionId(){return new Promise(function doGet(resolve,reject){init().then(function onInitialized(){resolve(datastore.revisionId);},reject);});}
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function put(data){return new Promise(function doAdd(resolve,reject){init().then(function onInitialized(){datastore.put(data,data.id).then(function success(){resolve();},reject);},reject);});}
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function remove(id){return new Promise(function doRemove(resolve,reject){init().then(function onInitialized(){datastore.remove(id).then(resolve,reject);},reject);});}
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function clear(){return new Promise(function doClear(resolve,reject){init().then(function onInitialized(){datastore.clear().then(resolve,reject);},reject);});}
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exports.BookmarksDatabase={get:get,getAll:getAll,getRevisionId:getRevisionId,addEventListener:addEventListener,removeEventListener:removeEventListener,add:add,put:put,remove:remove,clear:clear};}(window)); |