www/manager6/StateProvider.js

   1 /* This state provider keeps part of the state inside
   2  * the browser history.
   3  *
   4  * We compress (shorten) url using dictionary based compression
   5  * i.e. use column separated list instead of url encoded hash:
   6  * #v\d*       version/format
   7  * :=          indicates string values
   8  * :\d+        lookup value in dictionary hash
   9  * #v1:=value1:5:=value2:=value3:...
  10 */
  11
  12 Ext.define('PVE.StateProvider', {
  13     extend: 'Ext.state.LocalStorageProvider',
  14
  15     // private
  16     setHV: function(name, newvalue, fireEvents) {
  17         var me = this;
  18
  19         var changes = false;
  20         var oldtext = Ext.encode(me.UIState[name]);
  21         var newtext = Ext.encode(newvalue);
  22         if (newtext != oldtext) {
  23             changes = true;
  24             me.UIState[name] = newvalue;
  25             //console.log("changed old " + name + " " + oldtext);
  26             //console.log("changed new " + name + " " + newtext);
  27             if (fireEvents) {
  28                 me.fireEvent("statechange", me, name, { value: newvalue });
  29             }
  30         }
  31         return changes;
  32     },
  33
  34     // private
  35     hslist: [
  36         // order is important for notifications
  37         // [ name, default ]
  38         ['view', 'server'],
  39         ['rid', 'root'],
  40         ['ltab', 'tasks'],
  41         ['nodetab', ''],
  42         ['storagetab', ''],
  43         ['pooltab', ''],
  44         ['kvmtab', ''],
  45         ['lxctab', ''],
  46         ['dctab', '']
  47     ],
  48
  49     hprefix: 'v1',
  50
  51     compDict: {
  52         replication: 51,
  53         system: 50,
  54         monitor: 49,
  55         'ha-fencing': 48,
  56         'ha-groups': 47,
  57         'ha-resources': 46,
  58         'ceph-log': 45,
  59         'ceph-crushmap':44,
  60         'ceph-pools': 43,
  61         'ceph-osdtree': 42,
  62         'ceph-disklist': 41,
  63         'ceph-monlist': 40,
  64         'ceph-config': 39,
  65         ceph: 38,
  66         'firewall-fwlog': 37,
  67         'firewall-options': 36,
  68         'firewall-ipset': 35,
  69         'firewall-aliases': 34,
  70         'firewall-sg': 33,
  71         firewall: 32,
  72         apt: 31,
  73         members: 30,
  74         snapshot: 29,
  75         ha: 28,
  76         support: 27,
  77         pools: 26,
  78         syslog: 25,
  79         ubc: 24,
  80         initlog: 23,
  81         openvz: 22,
  82         backup: 21,
  83         resources: 20,
  84         content: 19,
  85         root: 18,
  86         domains: 17,
  87         roles: 16,
  88         groups: 15,
  89         users: 14,
  90         time: 13,
  91         dns: 12,
  92         network: 11,
  93         services: 10,
  94         options: 9,
  95         console: 8,
  96         hardware: 7,
  97         permissions: 6,
  98         summary: 5,
  99         tasks: 4,
 100         clog: 3,
 101         storage: 2,
 102         folder: 1,
 103         server: 0
 104     },
 105
 106     decodeHToken: function(token) {
 107         var me = this;
 108
 109         var state = {};
 110         if (!token) {
 111             Ext.Array.each(me.hslist, function(rec) {
 112                 state[rec[0]] = rec[1];
 113             });
 114             return state;
 115         }
 116
 117         // return Ext.urlDecode(token);
 118
 119         var items = token.split(':');
 120         var prefix = items.shift();
 121
 122         if (prefix != me.hprefix) {
 123             return me.decodeHToken();
 124         }
 125
 126         Ext.Array.each(me.hslist, function(rec) {
 127             var value = items.shift();
 128             if (value) {
 129                 if (value[0] === '=') {
 130                     value = decodeURIComponent(value.slice(1));
 131                 } else {
 132                     Ext.Object.each(me.compDict, function(key, cv) {
 133                         if (value == cv) {
 134                             value = key;
 135                             return false;
 136                         }
 137                     });
 138                 }
 139             }
 140             state[rec[0]] = value;
 141         });
 142
 143         return state;
 144     },
 145
 146     encodeHToken: function(state) {
 147         var me = this;
 148
 149         // return Ext.urlEncode(state);
 150
 151         var ctoken = me.hprefix;
 152         Ext.Array.each(me.hslist, function(rec) {
 153             var value = state[rec[0]];
 154             if (!Ext.isDefined(value)) {
 155                 value = rec[1];
 156             }
 157             value = encodeURIComponent(value);
 158             if (!value) {
 159                 ctoken += ':';
 160             } else {
 161                 var comp = me.compDict[value];
 162                 if (Ext.isDefined(comp)) {
 163                     ctoken += ":" + comp;
 164                 } else {
 165                     ctoken += ":=" + value;
 166                 }
 167             }
 168         });
 169
 170         return ctoken;
 171     },
 172
 173     constructor: function(config){
 174         var me = this;
 175
 176         me.callParent([config]);
 177
 178         me.UIState = me.decodeHToken(); // set default
 179
 180         var history_change_cb = function(token) {
 181             //console.log("HC " + token);
 182             if (!token) {
 183                 var res = window.confirm(gettext('Are you sure you want to navigate away from this page?'));
 184                 if (res){
 185                     // process text value and close...
 186                     Ext.History.back();
 187                 } else {
 188                     Ext.History.forward();
 189                 }
 190                 return;
 191             }
 192
 193             var newstate = me.decodeHToken(token);
 194             Ext.Array.each(me.hslist, function(rec) {
 195                 if (typeof newstate[rec[0]] == "undefined") {
 196                     return;
 197                 }
 198                 me.setHV(rec[0], newstate[rec[0]], true);
 199             });
 200         };
 201
 202         var start_token = Ext.History.getToken();
 203         if (start_token) {
 204             history_change_cb(start_token);
 205         } else {
 206             var htext = me.encodeHToken(me.UIState);
 207             Ext.History.add(htext);
 208         }
 209
 210         Ext.History.on('change', history_change_cb);
 211     },
 212
 213     get: function(name, defaultValue){
 214         /*jslint confusion: true */
 215         var me = this;
 216         var data;
 217
 218         if (typeof me.UIState[name] != "undefined") {
 219             data = { value: me.UIState[name] };
 220         } else {
 221             data = me.callParent(arguments);
 222             if (!data && name === 'GuiCap') {
 223                 data = { vms: {}, storage: {}, access: {}, nodes: {}, dc: {} };
 224             }
 225         }
 226
 227         //console.log("GET " + name + " " + Ext.encode(data));
 228         return data;
 229     },
 230
 231     clear: function(name){
 232         var me = this;
 233
 234         if (typeof me.UIState[name] != "undefined") {
 235             me.UIState[name] = null;
 236         }
 237
 238         me.callParent(arguments);
 239     },
 240
 241     set: function(name, value){
 242         var me = this;
 243
 244         //console.log("SET " + name + " " + Ext.encode(value));
 245         if (typeof me.UIState[name] != "undefined") {
 246             var newvalue = value ? value.value : null;
 247             if (me.setHV(name, newvalue, false)) {
 248                 var htext = me.encodeHToken(me.UIState);
 249                 Ext.History.add(htext);
 250             }
 251         } else {
 252             me.callParent(arguments);
 253         }
 254     }
 255 });