There is coupling between the store and value for the top-level grid,
which has a field mixin. Because of this, the setValue() method needs
to update the 'state' value for the records in the store accordingly.
This can however only be done if the store is already loaded, so the
store gets a refresh() callback. It also remembers which value it was
already adjusted for for potential subsequent setValue() calls.

Signed-off-by: Fiona Ebner <[email protected]>
---

Changes in v2:
* ui: fix function name adjustStoreForValue() for caller in setValue()
* Fix typo in commit message 'Becuase' -> 'Because'.

 www/manager6/form/VMCPUFlagSelector.js | 96 +++++++++++---------------
 1 file changed, 42 insertions(+), 54 deletions(-)

diff --git a/www/manager6/form/VMCPUFlagSelector.js 
b/www/manager6/form/VMCPUFlagSelector.js
index 630f79f5..922fcfa6 100644
--- a/www/manager6/form/VMCPUFlagSelector.js
+++ b/www/manager6/form/VMCPUFlagSelector.js
@@ -18,62 +18,42 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
 
     store: {
         type: 'store',
-        fields: ['flag', { name: 'state', defaultValue: '=' }, 'desc'],
-        data: [
-            // FIXME: let qemu-server host this and autogenerate or get from 
API call??
-            {
-                flag: 'md-clear',
-                desc: 'Required to let the guest OS know if MDS is mitigated 
correctly',
-            },
-            {
-                flag: 'pcid',
-                desc: 'Meltdown fix cost reduction on Westmere, Sandy-, and 
IvyBridge Intel CPUs',
-            },
-            { flag: 'spec-ctrl', desc: 'Allows improved Spectre mitigation 
with Intel CPUs' },
-            { flag: 'ssbd', desc: 'Protection for "Speculative Store Bypass" 
for Intel models' },
-            { flag: 'ibpb', desc: 'Allows improved Spectre mitigation with AMD 
CPUs' },
-            {
-                flag: 'virt-ssbd',
-                desc: 'Basis for "Speculative Store Bypass" protection for AMD 
models',
-            },
-            {
-                flag: 'amd-ssbd',
-                desc: 'Improves Spectre mitigation performance with AMD CPUs, 
best used with "virt-ssbd"',
-            },
-            {
-                flag: 'amd-no-ssb',
-                desc: 'Notifies guest OS that host is not vulnerable for 
Spectre on AMD CPUs',
-            },
-            {
-                flag: 'pdpe1gb',
-                desc: 'Allow guest OS to use 1GB size pages, if host HW 
supports it',
-            },
-            {
-                flag: 'hv-tlbflush',
-                desc: 'Improve performance in overcommitted Windows guests. 
May lead to guest bluescreens on old CPUs.',
-            },
-            {
-                flag: 'hv-evmcs',
-                desc: 'Improve performance for nested virtualization. Only 
supported on Intel CPUs.',
-            },
-            { flag: 'aes', desc: 'Activate AES instruction set for HW 
acceleration.' },
-        ],
+        fields: ['name', { name: 'state', defaultValue: '=' }, 'description'],
+        autoLoad: true,
+        proxy: {
+            type: 'proxmox',
+            url: '/api2/json/nodes/localhost/capabilities/qemu/cpu-flags',
+        },
         listeners: {
             update: function () {
                 this.commitChanges();
             },
+            refresh: function (store, eOpts) {
+                let me = this;
+                let view = me.view;
+
+                if (store.adjustedForValue !== view.value) {
+                    view.adjustStoreForValue();
+                }
+            },
         },
+        adjustedForValue: undefined,
     },
 
     getValue: function () {
         let me = this;
         let store = me.getStore();
+
+        if (!store.isLoaded()) {
+            return me.value;
+        }
+
         let flags = '';
 
         store.getData().each(function (rec) {
             let s = rec.get('state');
             if (s && s !== '=') {
-                let f = rec.get('flag');
+                let f = rec.get('name');
                 if (flags === '') {
                     flags = s + f;
                 } else {
@@ -87,29 +67,41 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
         return flags;
     },
 
-    setValue: function (value) {
+    // Adjusts the store for the current value and determines the unkown flags 
based on what the
+    // store does not know.
+    adjustStoreForValue: function () {
         let me = this;
         let store = me.getStore();
-
-        me.value = value || '';
+        let value = me.value;
 
         me.unkownFlags = [];
 
-        me.getStore().getData().each((rec) => rec.set('state', '='));
+        store.getData().each((rec) => rec.set('state', '='));
 
         let flags = value ? value.split(';') : [];
         flags.forEach(function (flag) {
             let sign = flag.substr(0, 1);
             flag = flag.substr(1);
 
-            let rec = store.findRecord('flag', flag, 0, false, true, true);
+            let rec = store.findRecord('name', flag, 0, false, true, true);
             if (rec !== null) {
                 rec.set('state', sign);
             } else {
                 me.unkownFlags.push(flag);
             }
         });
-        store.reload();
+
+        store.adjustedForValue = value;
+    },
+
+    setValue: function (value) {
+        let me = this;
+
+        me.value = value || '';
+
+        if (me.getStore().isLoaded()) {
+            me.adjustStoreForValue();
+        } // if not yet loaded, the store will trigger the function
 
         let res = me.mixins.field.setValue.call(me, value);
 
@@ -179,11 +171,11 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
             },
         },
         {
-            dataIndex: 'flag',
+            dataIndex: 'name',
             width: 100,
         },
         {
-            dataIndex: 'desc',
+            dataIndex: 'description',
             cellWrap: true,
             flex: 1,
         },
@@ -192,12 +184,8 @@ Ext.define('PVE.form.VMCPUFlagSelector', {
     initComponent: function () {
         let me = this;
 
-        // static class store, thus gets not recreated, so ensure defaults are 
set!
-        me.getStore().data.forEach(function (v) {
-            v.state = '=';
-        });
-
         me.value = me.originalValue = '';
+        me.store.view = me;
 
         me.callParent(arguments);
     },
-- 
2.47.3



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