b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
6 lines
No EOL
3.5 KiB
JavaScript
6 lines
No EOL
3.5 KiB
JavaScript
;;(function(exports){'use strict';var DB_NAME='places_idb_store';var DB_VERSION=3;var PLACES_STORE='places';var VISITS_STORE='visits';function PlacesIdbStore(){}
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PlacesIdbStore.prototype={db:null,latestRevision:null,init:function(){var self=this;return new Promise(function(resolve,reject){var req=window.indexedDB.open(DB_NAME,DB_VERSION);req.onupgradeneeded=self.upgradeSchema;req.onsuccess=function(e){self.db=e.target.result;asyncStorage.getItem('latest-revision',function(value){self.latestRevision=value||0;resolve();});};});},upgradeSchema:function(e){var db=e.target.result;var fromVersion=e.oldVersion;if(fromVersion<1){var places=db.createObjectStore(PLACES_STORE,{keyPath:'url'});places.createIndex('frecency','frecency',{unique:false});places.createIndex('visited','visited',{unique:false});}
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if(fromVersion<2){asyncStorage.removeItem('latest-revision');var visits=db.createObjectStore(VISITS_STORE,{keyPath:'date'});visits.createIndex('date','date',{unique:true});}
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if(fromVersion<3){var oStore=e.target.transaction.objectStore(VISITS_STORE);oStore.createIndex('url','url',{unique:false});}},add:function(id,data,rev){return new Promise((resolve,reject)=>{var txn=this.db.transaction([PLACES_STORE,VISITS_STORE],'readwrite');if(data.visits&&data.visits.length===0){this._removeUrl(id).then(this.saveAndResolve(rev,resolve));}else{txn.objectStore(PLACES_STORE).put(data);if(!data.visits){data.visits=Number.isFinite(data.visited)?[data.visited]:[];}
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var visitsStore=txn.objectStore(VISITS_STORE);data.visits.filter(Number.isFinite).forEach(function(date){visitsStore.put({date:date,url:data.url,title:data.title,icons:data.icons});});txn.oncomplete=this.saveAndResolve(rev,resolve);}});},addPlace:function(place){return new Promise((resolve,reject)=>{var txn=this.db.transaction([PLACES_STORE],'readwrite');txn.objectStore(PLACES_STORE).put(place);txn.oncomplete=resolve;});},remove:function(id,rev){return new Promise((resolve,reject)=>{this._removeUrl(id).then(this.saveAndResolve(rev,resolve));});},_removeUrl:function(id){return Promise.all([new Promise((resolve,reject)=>{var txn=this.db.transaction([PLACES_STORE],'readwrite');txn.objectStore(PLACES_STORE).delete(id);txn.oncomplete=resolve;}),new Promise((resolve,reject)=>{var txn=this.db.transaction([VISITS_STORE],'readwrite');var visitsStore=txn.objectStore(VISITS_STORE);var urlIndex=visitsStore.index('url');var req=urlIndex.openCursor(IDBKeyRange.only(id));req.onsuccess=function(){var cursor=req.result;if(cursor){visitsStore.delete(cursor.primaryKey);cursor.continue();}else{resolve();}};})]);},clear:function(rev){return new Promise((resolve,reject)=>{var txn=this.db.transaction([PLACES_STORE,VISITS_STORE],'readwrite');txn.objectStore(PLACES_STORE).clear();txn.objectStore(VISITS_STORE).clear();txn.oncomplete=this.saveAndResolve(rev,resolve);});},saveAndResolve:function(rev,resolve){return function(){asyncStorage.setItem('latest-revision',rev);resolve();};},readStore:function(store,index,limit,done,filter){var results=[];var txn=this.db.transaction(store,'readonly');var oStore=txn.objectStore(store);oStore.index(index).openCursor(null,'prev').onsuccess=function(event){var cursor=event.target.result;if(cursor){if(!filter||filter(cursor.value)){results.push(cursor.value);}
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if(results.length<limit){cursor.continue();}}};txn.oncomplete=function(){done(results);};},read:function(index,limit,done,filter){this.readStore(PLACES_STORE,index,limit,done,filter);},readVisits:function(limit,done,filter){this.readStore(VISITS_STORE,'date',limit,done,filter);}};exports.PlacesIdbStore=PlacesIdbStore;})(window); |