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sync.js
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sync.js
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'use strict';
// Based on https://github.com/vuejs/vuex-router-sync/blob/master/src/index.js
var undefinedChanges = {
action: undefined,
key: '',
value: undefined,
oldValue: undefined
};
function sync (store, warehouseStore, options) {
var moduleName = (options || {}).moduleName || 'warehouse';
store.registerModule(moduleName, {
namespaced: true,
state: cloneWarehouse(null, warehouseStore, vuexPlugin),
mutations: {
WAREHOUSE_CHANGED: function WAREHOUSE_CHANGED (state, changes) {
store.state[moduleName] = cloneWarehouse(changes, null, null);
}
}
});
function vuexPlugin () {
var _forceCommit = true;
return {
set: set,
remove: remove,
clearAll: clearAll,
_setForceCommit: _setForceCommit,
_getForceCommit: _getForceCommit,
_unsetForceCommit: _unsetForceCommit
}
// overwrite function to fire when appropriate
function set (superFn, key, value) {
var oldValue = this.get(key);
superFn();
var changes = {
action: 'set',
key: key,
value: value,
oldValue: oldValue
};
commitChanges(changes, _forceCommit);
}
function remove (superFn, key) {
var oldValue = this.get(key);
superFn();
var changes = {
action: 'remove',
key: key,
value: undefined,
oldValue: oldValue
};
commitChanges(changes, _forceCommit);
}
function clearAll (superFn) {
var oldValues = {};
this.each(function (value, key) {
oldValues[key] = value;
});
superFn();
Object.keys(oldValues).forEach(function (key) {
var oldValue = oldValues[key];
var changes = {
action: 'clearAll',
key: key,
value: undefined,
oldValue: oldValue
};
commitChanges(changes, _forceCommit);
});
}
function _setForceCommit () {
_forceCommit = true;
}
function _unsetForceCommit () {
_forceCommit = false;
}
function _getForceCommit () {
return _forceCommit
}
}
var currentChanges = Object.freeze(undefinedChanges);
// sync warehouse on store change
var warehouseUnwatch = store.watch(
function (state) { return state[moduleName]; },
function (warehouse) {
if (warehouse === currentChanges) {
return
}
warehouseStore._unsetForceCommit();
warehouseStore.set(warehouse.key, warehouse.value);
warehouseStore._setForceCommit();
},
{ sync: true }
);
// sync store on router navigation
var commitChanges = function (changes, forceCommit) {
if ( forceCommit === void 0 ) forceCommit = true;
currentChanges = changes;
if (forceCommit) {
store.commit((moduleName + "/WAREHOUSE_CHANGED"), changes);
}
};
return function unsync () {
// On unsync, remove warehouse watch
if (warehouseUnwatch != null) {
warehouseUnwatch();
}
// Removing the plugin is not possible,
// so we disable the internal syncing
if (warehouseStore) {
warehouseStore._unsetForceCommit();
}
// On unsync, unregister Module with store
store.unregisterModule(moduleName);
}
}
function cloneWarehouse (changes, warehouseStore, vuexPlugin) {
// Register vuexPlugin
if (warehouseStore && vuexPlugin) {
warehouseStore.addPlugin(vuexPlugin);
}
var clone = changes;
if (!changes) {
clone = undefinedChanges;
}
return Object.freeze(clone)
}
module.exports = sync;