mirror of
https://github.com/Esri/offline-editor-js.git
synced 2025-12-15 15:20:05 +00:00
119 lines
2.5 KiB
JavaScript
119 lines
2.5 KiB
JavaScript
"use strict";
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define([
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"edit/editsStore",
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"vendor/offline/offline.min",
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"dojo/Evented",
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"dojo/Deferred",
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"dojo/_base/declare"],
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function(editsStore,Offline,Evented,Deferred,declare)
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{
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return declare([Evented], {
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online: true,
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featureLayers: {},
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extend: function(layer)
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{
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var self = this;
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self.featureLayers[ layer.layerId ] = layer;
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/* replace the applyEdits() method */
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layer._applyEdits = layer.applyEdits;
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layer.applyEdits = function(adds,updates,deletes,callback,errback)
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{
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// inside this method, 'this' will be the FeatureLayer
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// and 'self' will be the offlineFeatureLayer object
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if( self.isOnline() )
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{
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self.emit('edits-sent',{});
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return layer._applyEdits(adds,updates,deletes,callback,errback);
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}
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else
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{
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var deferred = new Deferred();
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adds = adds || [];
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updates = updates || [];
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deletes = deletes || [];
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adds.forEach(function(addEdit)
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{
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editsStore.pushEdit(editsStore.ADD, layer.layerId, addEdit);
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});
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updates.forEach(function(updateEdit)
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{
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editsStore.pushEdit(editsStore.UPDATE, layer.layerId, updateEdit);
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});
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deletes.forEach(function(deleteEdit)
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{
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editsStore.pushEdit(editsStore.DELETE, layer.layerId, deleteEdit);
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});
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deferred.resolve();
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self.emit('edits-enqueued',{});
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if(callback)
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callback();
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return deferred;
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}
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}; // layer.applyEdits()
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}, // extend
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goOffline: function()
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{
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console.log('going offline');
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this.online = false;
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},
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goOnline: function()
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{
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console.log('going online');
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this.online = true;
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this.replayStoredEdits();
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//this.refresh();
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},
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isOnline: function()
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{
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return this.online;
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},
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replayStoredEdits: function()
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{
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if( editsStore.hasPendingEdits() )
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{
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var edit = editsStore.peekFirstEdit();
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var adds = [], updates = [], deletes = [];
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switch(edit.operation)
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{
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case editsStore.ADD:
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adds.push(edit.graphic);
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break;
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case editsStore.UPDATE:
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updates.push(edit.graphic);
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break;
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case editsStore.DELETE:
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deletes.push(edit.graphic);
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break;
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}
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var layer = this.featureLayers[ edit.layer ];
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var self = this;
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console.log("sending edits",adds,updates,deletes);
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layer._applyEdits(adds,updates,deletes,
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function()
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{
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editsStore.popFirstEdit();
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console.log("edits-sent");
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self.emit('edits-sent',{});
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self.replayStoredEdits();
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}
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);
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}
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}
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}); // declare
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}); // define
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