X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fviews%2FGame.vue;h=ec4f2c9837d31385eed2b88a3d43647f210dcaae;hb=9edfb7146fdc4dd08914b2a117d2852e705353aa;hp=7971aabe5a4ca939877356956c03b74210ea15e7;hpb=bd76b45611cbb58dcf774745a4d690277a82aacd;p=vchess.git

diff --git a/client/src/views/Game.vue b/client/src/views/Game.vue
index 7971aabe..ec4f2c98 100644
--- a/client/src/views/Game.vue
+++ b/client/src/views/Game.vue
@@ -1,36 +1,128 @@
 <template lang="pug">
 main
-  input#modalChat.modal(type="checkbox" @click="resetChatColor()")
-  div#chatWrap(role="dialog" data-checkbox="modalChat")
-    #chat.card
+  input#modalInfo.modal(type="checkbox")
+  div#infoDiv(
+    role="dialog"
+    data-checkbox="modalInfo"
+  )
+    .card.text-center
+      label.modal-close(for="modalInfo")
+      a(
+        :href="'#/game/' + rematchId"
+        onClick="document.getElementById('modalInfo').checked=false"
+      )
+        | {{ st.tr["Rematch in progress"] }}
+  input#modalChat.modal(
+    type="checkbox"
+    @click="toggleChat()"
+  )
+  div#chatWrap(
+    role="dialog"
+    data-checkbox="modalChat"
+  )
+    .card
       label.modal-close(for="modalChat")
       #participants
-        span {{ Object.keys(people).length + " " + st.tr["participant(s):"] }} 
-        span(v-for="p in Object.values(people)" v-if="!!p.name")
+        span {{ st.tr["Participant(s):"] }} 
+        span(
+          v-for="p in Object.values(people)"
+          v-if="participateInChat(p)"
+        )
           | {{ p.name }} 
-        span.anonymous(v-if="Object.values(people).some(p => !p.name)")
-          | + @nonymous
-      Chat(:players="game.players" :pastChats="game.chats"
-        :newChat="newChat" @mychat="processChat")
+        span.anonymous(v-if="someAnonymousPresent()") + @nonymous
+      Chat(
+        ref="chatcomp"
+        :players="game.players"
+        :pastChats="game.chats"
+        @mychat="processChat"
+        @chatcleared="clearChat"
+      )
+  input#modalConfirm.modal(type="checkbox")
+  div#confirmDiv(role="dialog")
+    .card
+      .diagram(
+        v-if="!!vr && ['all','byrow'].includes(vr.showMoves)"
+        v-html="curDiag"
+      )
+      p.text-center(v-else)
+        span {{ st.tr["Move played:"] + " " }}
+        span.bold {{ moveNotation }}
+        br
+        span {{ st.tr["Are you sure?"] }}
+      .button-group#buttonsConfirm
+        // onClick for acceptBtn: set dynamically
+        button.acceptBtn
+          span {{ st.tr["Validate"] }}
+        button.refuseBtn(@click="cancelMove()")
+          span {{ st.tr["Cancel"] }}
   .row
     #aboveBoard.col-sm-12.col-md-9.col-md-offset-3.col-lg-10.col-lg-offset-2
-      span.variant-info {{ game.vname }}
-      button#chatBtn(onClick="doClick('modalChat')") Chat
+      span.variant-cadence {{ game.cadence }}
+      span.variant-name {{ game.vname }}
+      span#nextGame(
+        v-if="nextIds.length > 0"
+        @click="showNextGame()"
+      )
+        | {{ st.tr["Next_g"] }}
+      button#chatBtn.tooltip(
+        onClick="window.doClick('modalChat')"
+        aria-label="Chat"
+      )
+        img(src="/images/icons/chat.svg")
       #actions(v-if="game.score=='*'")
-        button(@click="clickDraw()" :class="{['draw-' + drawOffer]: true}")
-          | {{ st.tr["Draw"] }}
-        button(v-if="!!game.mycolor" @click="abortGame()") {{ st.tr["Abort"] }}
-        button(v-if="!!game.mycolor" @click="resign()") {{ st.tr["Resign"] }}
+        button.tooltip(
+          @click="clickDraw()"
+          :class="{['draw-' + drawOffer]: true}"
+          :aria-label="st.tr['Draw']"
+        )
+          img(src="/images/icons/draw.svg")
+        button.tooltip(
+          v-if="!!game.mycolor"
+          @click="abortGame()"
+          :aria-label="st.tr['Abort']"
+        )
+          img(src="/images/icons/abort.svg")
+        button.tooltip(
+          v-if="!!game.mycolor"
+          @click="resign()"
+          :aria-label="st.tr['Resign']"
+        )
+          img(src="/images/icons/resign.svg")
+      button.tooltip(
+        v-else
+        @click="clickRematch()"
+        :class="{['rematch-' + rematchOffer]: true}"
+        :aria-label="st.tr['Rematch']"
+      )
+        img(src="/images/icons/rematch.svg")
       #playersInfo
         p
           span.name(:class="{connected: isConnected(0)}")
             | {{ game.players[0].name || "@nonymous" }}
-          span.time(v-if="game.score=='*'") {{ virtualClocks[0] }}
+          span.time(
+            v-if="game.score=='*'"
+            :class="{yourturn: !!vr && vr.turn == 'w'}"
+          )
+            span.time-left {{ virtualClocks[0][0] }}
+            span.time-separator(v-if="!!virtualClocks[0][1]") :
+            span.time-right(v-if="!!virtualClocks[0][1]")
+              | {{ virtualClocks[0][1] }}
           span.split-names -
           span.name(:class="{connected: isConnected(1)}")
             | {{ game.players[1].name || "@nonymous" }}
-          span.time(v-if="game.score=='*'") {{ virtualClocks[1] }}
-  BaseGame(:game="game" :vr="vr" @newmove="processMove" @gameover="gameOver")
+          span.time(
+            v-if="game.score=='*'"
+            :class="{yourturn: !!vr && vr.turn == 'b'}"
+          )
+            span.time-left {{ virtualClocks[1][0] }}
+            span.time-separator(v-if="!!virtualClocks[1][1]") :
+            span.time-right(v-if="!!virtualClocks[1][1]")
+              | {{ virtualClocks[1][1] }}
+  BaseGame(
+    ref="basegame"
+    :game="game"
+    @newmove="processMove"
+  )
 </template>
 
 <script>
@@ -39,301 +131,630 @@ import Chat from "@/components/Chat.vue";
 import { store } from "@/store";
 import { GameStorage } from "@/utils/gameStorage";
 import { ppt } from "@/utils/datetime";
+import { notify } from "@/utils/notifications";
+import { ajax } from "@/utils/ajax";
 import { extractTime } from "@/utils/timeControl";
 import { getRandString } from "@/utils/alea";
-import { ArrayFun } from "@/utils/array";
-import { processModalClick } from "@/utils/modalClick";
 import { getScoreMessage } from "@/utils/scoring";
+import { getFullNotation } from "@/utils/notation";
+import { getDiagram } from "@/utils/printDiagram";
+import { processModalClick } from "@/utils/modalClick";
+import { playMove, getFilteredMove } from "@/utils/playUndo";
+import { ArrayFun } from "@/utils/array";
 import params from "@/parameters";
 export default {
-  name: 'my-game',
+  name: "my-game",
   components: {
     BaseGame,
-    Chat,
+    Chat
   },
-  // gameRef: to find the game in (potentially remote) storage
   data: function() {
     return {
       st: store.state,
-      gameRef: { //given in URL (rid = remote ID)
-        id: "",
-        rid: ""
-      },
-      game: { //passed to BaseGame
-        players:[{name:""},{name:""}],
-        chats: [],
-        rendered: false,
-      },
-      virtualClocks: [0, 0], //initialized with true game.clocks
+      // gameRef can point to a corr game, local game or remote live game
+      gameRef: "",
+      nextIds: [],
+      game: {}, //passed to BaseGame
+      focus: !document.hidden, //will not always work... TODO
+      // virtualClocks will be initialized from true game.clocks
+      virtualClocks: [],
       vr: null, //"variant rules" object initialized from FEN
       drawOffer: "",
+      rematchId: "",
+      rematchOffer: "",
+      lastateAsked: false,
       people: {}, //players + observers
       lastate: undefined, //used if opponent send lastate before game is ready
       repeat: {}, //detect position repetition
-      newChat: "",
+      curDiag: "", //for corr moves confirmation
       conn: null,
+      roomInitialized: false,
+      // If newmove has wrong index: ask fullgame again:
+      askGameTime: 0,
+      gameIsLoading: false,
+      // If asklastate got no reply, ask again:
+      gotLastate: false,
+      gotMoveIdx: -1, //last move index received
+      // If newmove got no pingback, send again:
+      opponentGotMove: false,
       connexionString: "",
+      socketCloseListener: 0,
+      // Incomplete info games: show move played
+      moveNotation: "",
+      // Intervals from setInterval():
+      askLastate: null,
+      retrySendmove: null,
+      clockUpdate: null,
       // Related to (killing of) self multi-connects:
       newConnect: {},
-      killed: {},
+      killed: {}
     };
   },
   watch: {
-    "$route": function(to, from) {
-      this.gameRef.id = to.params["id"];
-      this.gameRef.rid = to.query["rid"];
-      this.loadGame();
-    },
-    "game.clocks": function(newState) {
-      if (this.game.moves.length < 2 || this.game.score != "*")
-      {
-        // 1st move not completed yet, or game over: freeze time
-        this.virtualClocks = newState.map(s => ppt(s));
-        return;
-      }
-      const currentTurn = this.vr.turn;
-      const colorIdx = ["w","b"].indexOf(currentTurn);
-      let countdown = newState[colorIdx] -
-        (Date.now() - this.game.initime[colorIdx])/1000;
-      this.virtualClocks = [0,1].map(i => {
-        const removeTime = i == colorIdx
-          ? (Date.now() - this.game.initime[colorIdx])/1000
-          : 0;
-        return ppt(newState[i] - removeTime);
-      });
-      let clockUpdate = setInterval(() => {
-        if (countdown < 0 || this.vr.turn != currentTurn || this.game.score != "*")
-        {
-          clearInterval(clockUpdate);
-          if (countdown < 0)
-            this.gameOver(this.vr.turn=="w" ? "0-1" : "1-0", this.st.tr["Time"]);
-        }
-        else
-          this.$set(this.virtualClocks, colorIdx, ppt(Math.max(0, --countdown)));
-      }, 1000);
-    },
+    $route: function(to, from) {
+      if (to.path.length < 6 || to.path.substr(0, 6) != "/game/")
+        // Page change
+        this.cleanBeforeDestroy();
+      else if (from.params["id"] != to.params["id"]) {
+        // Change everything:
+        this.cleanBeforeDestroy();
+        let boardDiv = document.querySelector(".game");
+        if (!!boardDiv)
+          // In case of incomplete information variant:
+          boardDiv.style.visibility = "hidden";
+        this.atCreation();
+      } else
+        // Same game ID
+        this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
+    }
   },
   // NOTE: some redundant code with Hall.vue (mostly related to people array)
   created: function() {
-    // Always add myself to players' list
-    const my = this.st.user;
-    this.$set(this.people, my.sid, {id:my.id, name:my.name});
-    this.gameRef.id = this.$route.params["id"];
-    this.gameRef.rid = this.$route.query["rid"]; //may be undefined
-    // Initialize connection
-    this.connexionString = params.socketUrl +
-      "/?sid=" + this.st.user.sid +
-      "&tmpId=" + getRandString() +
-      "&page=" + encodeURIComponent(this.$route.path);
-    this.conn = new WebSocket(this.connexionString);
-    this.conn.onmessage = this.socketMessageListener;
-    this.conn.onclose = this.socketCloseListener;
-    // Socket init required before loading remote game:
-    const socketInit = (callback) => {
-      if (!!this.conn && this.conn.readyState == 1) //1 == OPEN state
-        callback();
-      else //socket not ready yet (initial loading)
-      {
-        // NOTE: it's important to call callback without arguments,
-        // otherwise first arg is Websocket object and loadGame fails.
-        this.conn.onopen = () => { return callback() };
-      }
-    };
-    if (!this.gameRef.rid) //game stored locally or on server
-      this.loadGame(null, () => socketInit(this.roomInit));
-    else //game stored remotely: need socket to retrieve it
-    {
-      // NOTE: the callback "roomInit" will be lost, so we don't provide it.
-      // --> It will be given when receiving "fullgame" socket event.
-      // A more general approach would be to store it somewhere.
-      socketInit(this.loadGame);
-    }
+    this.atCreation();
   },
   mounted: function() {
-    document.getElementById("chatWrap").addEventListener(
-      "click", processModalClick);
+    ["chatWrap", "infoDiv"].forEach(eltName => {
+      document.getElementById(eltName)
+        .addEventListener("click", processModalClick);
+    });
+    if ("ontouchstart" in window) {
+      // Disable tooltips on smartphones:
+      document.querySelectorAll("#aboveBoard .tooltip").forEach(elt => {
+        elt.classList.remove("tooltip");
+      });
+    }
   },
   beforeDestroy: function() {
-    this.send("disconnect");
+    this.cleanBeforeDestroy();
   },
   methods: {
+    cleanBeforeDestroy: function() {
+      clearInterval(this.socketCloseListener);
+      document.removeEventListener('visibilitychange', this.visibilityChange);
+      window.removeEventListener('focus', this.onFocus);
+      window.removeEventListener('blur', this.onBlur);
+      if (!!this.askLastate) clearInterval(this.askLastate);
+      if (!!this.retrySendmove) clearInterval(this.retrySendmove);
+      if (!!this.clockUpdate) clearInterval(this.clockUpdate);
+      this.conn.removeEventListener("message", this.socketMessageListener);
+      this.send("disconnect");
+      this.conn = null;
+    },
+    visibilityChange: function() {
+      // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
+      this.focus = (document.visibilityState == "visible");
+      if (!this.focus && !!this.rematchOffer) {
+        this.rematchOffer = "";
+        this.send("rematchoffer", { data: false });
+        // Do not remove rematch offer from (local) storage
+      }
+      this.send(this.focus ? "getfocus" : "losefocus");
+    },
+    onFocus: function() {
+      this.focus = true;
+      this.send("getfocus");
+    },
+    onBlur: function() {
+      this.focus = false;
+      if (!!this.rematchOffer) {
+        this.rematchOffer = "";
+        this.send("rematchoffer", { data: false });
+      }
+      this.send("losefocus");
+    },
+    participateInChat: function(p) {
+      return Object.keys(p.tmpIds).some(x => p.tmpIds[x].focus) && !!p.name;
+    },
+    someAnonymousPresent: function() {
+      return (
+        Object.values(this.people).some(p =>
+          !p.name && Object.keys(p.tmpIds).some(x => p.tmpIds[x].focus)
+        )
+      );
+    },
+    atCreation: function() {
+      document.addEventListener('visibilitychange', this.visibilityChange);
+      window.addEventListener('focus', this.onFocus);
+      window.addEventListener('blur', this.onBlur);
+      // 0] (Re)Set variables
+      this.gameRef = this.$route.params["id"];
+      // next = next corr games IDs to navigate faster (if applicable)
+      this.nextIds = JSON.parse(this.$route.query["next"] || "[]");
+      // Always add myself to players' list
+      const my = this.st.user;
+      const tmpId = getRandString();
+      this.$set(
+        this.people,
+        my.sid,
+        {
+          id: my.id,
+          name: my.name,
+          tmpIds: {
+            tmpId: { focus: true }
+          }
+        }
+      );
+      this.game = {
+        players: [{ name: "" }, { name: "" }],
+        chats: [],
+        rendered: false
+      };
+      let chatComp = this.$refs["chatcomp"];
+      if (!!chatComp) chatComp.chats = [];
+      this.virtualClocks = [[0,0], [0,0]];
+      this.vr = null;
+      this.drawOffer = "";
+      this.lastateAsked = false;
+      this.rematchOffer = "";
+      this.lastate = undefined;
+      this.roomInitialized = false;
+      this.askGameTime = 0;
+      this.gameIsLoading = false;
+      this.gotLastate = false;
+      this.gotMoveIdx = -1;
+      this.opponentGotMove = false;
+      this.askLastate = null;
+      this.retrySendmove = null;
+      this.clockUpdate = null;
+      this.newConnect = {};
+      this.killed = {};
+      // 1] Initialize connection
+      this.connexionString =
+        params.socketUrl +
+        "/?sid=" + this.st.user.sid +
+        "&id=" + this.st.user.id +
+        "&tmpId=" + tmpId +
+        "&page=" +
+        // Discard potential "/?next=[...]" for page indication:
+        encodeURIComponent(this.$route.path.match(/\/game\/[a-zA-Z0-9]+/)[0]);
+      this.conn = new WebSocket(this.connexionString);
+      this.conn.addEventListener("message", this.socketMessageListener);
+      this.socketCloseListener = setInterval(
+        () => {
+          if (this.conn.readyState == 3) {
+            this.conn.removeEventListener("message", this.socketMessageListener);
+            this.conn = new WebSocket(this.connexionString);
+            this.conn.addEventListener("message", this.socketMessageListener);
+          }
+        },
+        1000
+      );
+      // Socket init required before loading remote game:
+      const socketInit = callback => {
+        if (this.conn.readyState == 1)
+          // 1 == OPEN state
+          callback();
+        else
+          // Socket not ready yet (initial loading)
+          // NOTE: first arg is Websocket object, unused here:
+          this.conn.onopen = () => callback();
+      };
+      this.fetchGame((game) => {
+        if (!!game)
+          this.loadVariantThenGame(game, () => socketInit(this.roomInit));
+        else
+          // Live game stored remotely: need socket to retrieve it
+          // NOTE: the callback "roomInit" will be lost, so we don't provide it.
+          // --> It will be given when receiving "fullgame" socket event.
+          socketInit(() => { this.send("askfullgame"); });
+      });
+    },
     roomInit: function() {
-      // Notify the room only now that I connected, because
-      // messages might be lost otherwise (if game loading is slow)
-      this.send("connect");
-      this.send("pollclients");
+      if (!this.roomInitialized) {
+        // Notify the room only now that I connected, because
+        // messages might be lost otherwise (if game loading is slow)
+        this.send("connect");
+        this.send("pollclients");
+        // We may ask fullgame several times if some moves are lost,
+        // but room should be init only once:
+        this.roomInitialized = true;
+      }
     },
     send: function(code, obj) {
       if (!!this.conn)
-      {
-        this.conn.send(JSON.stringify(
-          Object.assign(
-            {code: code},
-            obj,
-          )
-        ));
-      }
+        this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
     },
     isConnected: function(index) {
       const player = this.game.players[index];
-      // Is it me ?
-      if (this.st.user.sid == player.sid || this.st.user.id == player.uid)
-        return true;
+      // Is it me ? In this case no need to bother with focus
+      if (this.st.user.sid == player.sid || this.st.user.id == player.id)
+        // Still have to check for name (because of potential multi-accounts
+        // on same browser, although this should be rare...)
+        return (!this.st.user.name || this.st.user.name == player.name);
       // Try to find a match in people:
-      return Object.keys(this.people).some(sid => sid == player.sid) ||
-        Object.values(this.people).some(p => p.id == player.uid);
+      return (
+        (
+          !!player.sid &&
+          Object.keys(this.people).some(sid => {
+            return (
+              sid == player.sid &&
+              Object.values(this.people[sid].tmpIds).some(v => v.focus)
+            );
+          })
+        )
+        ||
+        (
+          !!player.id &&
+          Object.values(this.people).some(p => {
+            return (
+              p.id == player.id &&
+              Object.values(p.tmpIds).some(v => v.focus)
+            );
+          })
+        )
+      );
+    },
+    getOppsid: function() {
+      let oppsid = this.game.oppsid;
+      if (!oppsid) {
+        oppsid = Object.keys(this.people).find(
+          sid => this.people[sid].id == this.game.oppid
+        );
+      }
+      // oppsid is useful only if opponent is online:
+      if (!!oppsid && !!this.people[oppsid]) return oppsid;
+      return null;
+    },
+    toggleChat: function() {
+      if (document.getElementById("modalChat").checked)
+        // Entering chat
+        document.getElementById("inputChat").focus();
+      // TODO: next line is only required when exiting chat,
+      // but the event for now isn't well detected.
+      document.getElementById("chatBtn").classList.remove("somethingnew");
+    },
+    processChat: function(chat) {
+      this.send("newchat", { data: chat });
+      // NOTE: anonymous chats in corr games are not stored on server (TODO?)
+      if (this.game.type == "corr" && this.st.user.id > 0)
+        this.updateCorrGame({ chat: chat });
+      else if (this.game.type == "live") {
+        chat.added = Date.now();
+        GameStorage.update(this.gameRef, { chat: chat });
+      }
+    },
+    clearChat: function() {
+      if (!!this.game.mycolor) {
+        if (this.game.type == "corr") {
+          ajax(
+            "/chats",
+            "DELETE",
+            { data: { gid: this.game.id } }
+          );
+        } else {
+          // Live game
+          GameStorage.update(this.gameRef, { delchat: true });
+        }
+        this.$set(this.game, "chats", []);
+      }
+    },
+    getGameType: function(game) {
+      return game.cadence.indexOf("d") >= 0 ? "corr" : "live";
+    },
+    // Notify something after a new move (to opponent and me on MyGames page)
+    notifyMyGames: function(thing, data) {
+      this.send(
+        "notify" + thing,
+        {
+          data: data,
+          targets: this.game.players.map(p => {
+            return { sid: p.sid, id: p.id };
+          })
+        }
+      );
+    },
+    showNextGame: function() {
+      // Did I play in current game? If not, add it to nextIds list
+      if (this.game.score == "*" && this.vr.turn == this.game.mycolor)
+        this.nextIds.unshift(this.game.id);
+      const nextGid = this.nextIds.pop();
+      this.$router.push(
+        "/game/" + nextGid + "/?next=" + JSON.stringify(this.nextIds));
+    },
+    askGameAgain: function() {
+      this.gameIsLoading = true;
+      const currentUrl = document.location.href;
+      const doAskGame = () => {
+        if (document.location.href != currentUrl) return; //page change
+        this.fetchGame((game) => {
+          if (!!game)
+            // This is my game: just reload.
+            this.loadGame(game);
+          else
+            // Just ask fullgame again (once!), this is much simpler.
+            // If this fails, the user could just reload page :/
+            this.send("askfullgame");
+        });
+      };
+      // Delay of at least 2s between two game requests
+      const now = Date.now();
+      const delay = Math.max(2000 - (now - this.askGameTime), 0);
+      this.askGameTime = now;
+      setTimeout(doAskGame, delay);
     },
     socketMessageListener: function(msg) {
-      if (!this.conn)
-        return;
+      if (!this.conn) return;
       const data = JSON.parse(msg.data);
-      switch (data.code)
-      {
+      switch (data.code) {
         case "pollclients":
-          data.sockIds.forEach(sid => {
-            this.$set(this.people, sid, {id:0, name:""});
-            if (sid != this.st.user.sid)
-            {
-              this.send("askidentity", {target:sid});
-              // Ask potentially missed last state, if opponent and I play
-              if (!!this.game.mycolor
-                && this.game.type == "live" && this.game.score == "*"
-                && this.game.players.some(p => p.sid == sid))
-              {
-                this.send("asklastate", {target:sid});
-              }
+          // TODO: shuffling and random filtering on server,
+          // if the room is really crowded.
+          Object.keys(data.sockIds).forEach(sid => {
+            if (sid != this.st.user.sid) {
+              this.send("askidentity", { target: sid });
+              this.people[sid] = { tmpIds: data.sockIds[sid] };
+            } else {
+              // Complete my tmpIds:
+              Object.assign(this.people[sid].tmpIds, data.sockIds[sid]);
             }
           });
           break;
         case "connect":
-          if (!this.people[data.from])
-            this.$set(this.people, data.from, {name:"", id:0});
-          if (!this.people[data.from].name)
-          {
+          if (!this.people[data.from[0]]) {
+            // focus depends on the tmpId (e.g. tab)
+            this.$set(
+              this.people,
+              data.from[0],
+              {
+                tmpIds: {
+                  [data.from[1]]: { focus: true }
+                }
+              }
+            );
             this.newConnect[data.from] = true; //for self multi-connects tests
-            this.send("askidentity", {target:data.from});
+            this.send("askidentity", { target: data.from[0] });
+          } else {
+            this.people[data.from[0]].tmpIds[data.from[1]] = { focus: true };
+            this.$forceUpdate(); //TODO: shouldn't be required
           }
           break;
         case "disconnect":
-          this.$delete(this.people, data.from);
+          if (!this.people[data.from[0]]) return;
+          delete this.people[data.from[0]].tmpIds[data.from[1]];
+          if (Object.keys(this.people[data.from[0]].tmpIds).length == 0)
+            this.$delete(this.people, data.from[0]);
+          else this.$forceUpdate(); //TODO: shouldn't be required
+          break;
+        case "getfocus": {
+          let player = this.people[data.from[0]];
+          if (!!player) {
+            player.tmpIds[data.from[1]].focus = true;
+            this.$forceUpdate(); //TODO: shouldn't be required
+          }
           break;
+        }
+        case "losefocus": {
+          let player = this.people[data.from[0]];
+          if (!!player) {
+            player.tmpIds[data.from[1]].focus = false;
+            this.$forceUpdate(); //TODO: shouldn't be required
+          }
+          break;
+        }
         case "killed":
           // I logged in elsewhere:
-          alert(this.st.tr["New connexion detected: tab now offline"]);
-          // TODO: this fails. See https://github.com/websockets/ws/issues/489
-          //this.conn.removeEventListener("message", this.socketMessageListener);
-          //this.conn.removeEventListener("close", this.socketCloseListener);
-          //this.conn.close();
+          this.conn.removeEventListener("message", this.socketMessageListener);
+          this.conn.removeEventListener("close", this.socketCloseListener);
           this.conn = null;
+          alert(this.st.tr["New connexion detected: tab now offline"]);
           break;
-        case "askidentity":
-        {
-          // Request for identification (TODO: anonymous shouldn't need to reply)
+        case "askidentity": {
+          // Request for identification
           const me = {
             // Decompose to avoid revealing email
             name: this.st.user.name,
             sid: this.st.user.sid,
-            id: this.st.user.id,
+            id: this.st.user.id
           };
-          this.send("identity", {data:me, target:data.from});
+          this.send("identity", { data: me, target: data.from });
           break;
         }
-        case "identity":
-        {
+        case "identity": {
           const user = data.data;
-          if (!!user.name) //otherwise anonymous
-          {
-            // If I multi-connect, kill current connexion if no mark (I'm older)
-            if (this.newConnect[user.sid] && user.id > 0
-              && user.id == this.st.user.id && user.sid != this.st.user.sid)
-            {
-              if (!this.killed[this.st.user.sid])
-              {
-                this.send("killme", {sid:this.st.user.sid});
+          let player = this.people[user.sid];
+          // player.tmpIds is already set
+          player.name = user.name;
+          player.id = user.id;
+          this.$forceUpdate(); //TODO: shouldn't be required
+          // If I multi-connect, kill current connexion if no mark (I'm older)
+          if (this.newConnect[user.sid]) {
+            if (
+              user.id > 0 &&
+              user.id == this.st.user.id &&
+              user.sid != this.st.user.sid &&
+              !this.killed[this.st.user.sid]
+            ) {
+                this.send("killme", { sid: this.st.user.sid });
                 this.killed[this.st.user.sid] = true;
-              }
             }
-            if (user.sid != this.st.user.sid) //I already know my identity...
-            {
-              this.$set(this.people, user.sid,
-                {
-                  id: user.id,
-                  name: user.name,
-                });
+            delete this.newConnect[user.sid];
+          }
+          if (!this.killed[this.st.user.sid]) {
+            // Ask potentially missed last state, if opponent and I play
+            if (
+              !this.gotLastate &&
+              !!this.game.mycolor &&
+              this.game.type == "live" &&
+              this.game.score == "*" &&
+              this.game.players.some(p => p.sid == user.sid)
+            ) {
+              this.send("asklastate", { target: user.sid });
+              let counter = 1;
+              this.askLastate = setInterval(
+                () => {
+                  // Ask at most 3 times:
+                  // if no reply after that there should be a network issue.
+                  if (
+                    counter < 3 &&
+                    !this.gotLastate &&
+                    !!this.people[user.sid]
+                  ) {
+                    this.send("asklastate", { target: user.sid });
+                    counter++;
+                  } else {
+                    clearInterval(this.askLastate);
+                  }
+                },
+                1500
+              );
             }
           }
-          delete this.newConnect[user.sid];
           break;
         }
         case "askgame":
           // Send current (live) game if not asked by any of the players
-          if (this.game.type == "live"
-            && this.game.players.every(p => p.sid != data.from[0]))
-          {
+          if (
+            this.game.type == "live" &&
+            this.game.players.every(p => p.sid != data.from[0])
+          ) {
             const myGame = {
               id: this.game.id,
               fen: this.game.fen,
               players: this.game.players,
               vid: this.game.vid,
               cadence: this.game.cadence,
-              score: this.game.score,
-              rid: this.st.user.sid, //useful in Hall if I'm an observer
+              score: this.game.score
             };
-            this.send("game", {data:myGame, target:data.from});
+            this.send("game", { data: myGame, target: data.from });
           }
           break;
         case "askfullgame":
-          this.send("fullgame", {data:this.game, target:data.from});
+          const gameToSend = Object.keys(this.game)
+            .filter(k =>
+              [
+                "id","fen","players","vid","cadence","fenStart","vname",
+                "moves","clocks","score","drawOffer","rematchOffer"
+              ].includes(k))
+            .reduce(
+              (obj, k) => {
+                obj[k] = this.game[k];
+                return obj;
+              },
+              {}
+            );
+          this.send("fullgame", { data: gameToSend, target: data.from });
           break;
         case "fullgame":
-          // Callback "roomInit" to poll clients only after game is loaded
-          this.loadGame(data.data, this.roomInit);
+          if (!!data.data.empty) {
+            alert(this.st.tr["The game should be in another tab"]);
+            this.$router.go(-1);
+          }
+          else
+            // Callback "roomInit" to poll clients only after game is loaded
+            this.loadVariantThenGame(data.data, this.roomInit);
           break;
         case "asklastate":
-          // Sending last state if I played a move or score != "*"
-          if ((this.game.moves.length > 0 && this.vr.turn != this.game.mycolor)
-              || this.game.score != "*" || this.drawOffer == "sent")
-          {
-            // Send our "last state" informations to opponent
-            const L = this.game.moves.length;
-            const myIdx = ["w","b"].indexOf(this.game.mycolor);
-            const myLastate = {
-              // NOTE: lastMove (when defined) includes addTime
-              lastMove: (L>0 ? this.game.moves[L-1] : undefined),
-              // Since we played a move (or abort or resign),
-              // only drawOffer=="sent" is possible
-              drawSent: this.drawOffer == "sent",
-              score: this.game.score,
-              movesCount: L,
-              initime: this.game.initime[1-myIdx], //relevant only if I played
-            };
-            this.send("lastate", {data:myLastate, target:data.from});
-          }
+          // Sending informative last state if I played a move or score != "*"
+          // If the game or moves aren't loaded yet, delay the sending:
+          // TODO: since socket init after game load, the game is supposedly ready
+          if (!this.game || !this.game.moves) this.lastateAsked = true;
+          else this.sendLastate(data.from);
           break;
-        case "lastate": //got opponent infos about last move
+        case "lastate": {
+          // Got opponent infos about last move
+          this.gotLastate = true;
           this.lastate = data.data;
-          if (this.game.rendered) //game is rendered (Board component)
+          if (this.game.rendered)
+            // Game is rendered (Board component)
             this.processLastate();
-          //else: will be processed when game is ready
+          // Else: will be processed when game is ready
           break;
-        case "newmove":
-        {
-          const move = data.data;
-          if (!!move.cancelDrawOffer) //opponent refuses draw
-          {
-            this.drawOffer = "";
-            // NOTE for corr games: drawOffer reset by player in turn
-            if (this.game.type == "live" && !!this.game.mycolor)
-              GameStorage.update(this.gameRef.id, {drawOffer: ""});
+        }
+        case "newmove": {
+          const movePlus = data.data;
+          const movesCount = this.game.moves.length;
+          if (movePlus.index > movesCount) {
+            // This can only happen if I'm an observer and missed a move.
+            if (this.gotMoveIdx < movePlus.index)
+              this.gotMoveIdx = movePlus.index;
+            if (!this.gameIsLoading) this.askGameAgain();
           }
-          this.$set(this.game, "moveToPlay", move);
+          else {
+            if (
+              movePlus.index < movesCount ||
+              this.gotMoveIdx >= movePlus.index
+            ) {
+              // Opponent re-send but we already have the move:
+              // (maybe he didn't receive our pingback...)
+              this.send("gotmove", {data: movePlus.index, target: data.from});
+            } else {
+              this.gotMoveIdx = movePlus.index;
+              const receiveMyMove = (movePlus.color == this.game.mycolor);
+              const moveColIdx = ["w", "b"].indexOf(movePlus.color);
+              if (!receiveMyMove && !!this.game.mycolor) {
+                // Notify opponent that I got the move:
+                this.send("gotmove", {data: movePlus.index, target: data.from});
+                // And myself if I'm elsewhere:
+                if (!this.focus) {
+                  notify(
+                    "New move",
+                    {
+                      body:
+                        (this.game.players[moveColIdx].name || "@nonymous") +
+                        " just played."
+                    }
+                  );
+                }
+              }
+              if (movePlus.cancelDrawOffer) {
+                // Opponent refuses draw
+                this.drawOffer = "";
+                // NOTE for corr games: drawOffer reset by player in turn
+                if (
+                  this.game.type == "live" &&
+                  !!this.game.mycolor &&
+                  !receiveMyMove
+                ) {
+                  GameStorage.update(this.gameRef, { drawOffer: "" });
+                }
+              }
+              this.$refs["basegame"].play(movePlus.move, "received", null, true);
+              this.game.clocks[moveColIdx] = movePlus.clock;
+              this.processMove(
+                movePlus.move,
+                { receiveMyMove: receiveMyMove }
+              );
+            }
+          }
+          break;
+        }
+        case "gotmove": {
+          this.opponentGotMove = true;
+          // Now his clock starts running on my side:
+          const oppIdx = ['w','b'].indexOf(this.vr.turn);
+          // NOTE: next line to avoid multi-resetClocks when several tabs
+          // on same game, resulting in a faster countdown.
+          if (!!this.clockUpdate) clearInterval(this.clockUpdate);
+          this.re_setClocks();
           break;
         }
         case "resign":
-          this.gameOver(data.side=="b" ? "1-0" : "0-1", "Resign");
+          const score = (data.data == "b" ? "1-0" : "0-1");
+          const side = (data.data == "w" ? "White" : "Black");
+          this.gameOver(score, side + " surrender");
           break;
         case "abort":
-          this.gameOver("?", "Abort");
+          this.gameOver("?", "Stop");
           break;
         case "draw":
           this.gameOver("1/2", data.data);
@@ -341,361 +762,734 @@ export default {
         case "drawoffer":
           // NOTE: observers don't know who offered draw
           this.drawOffer = "received";
+          if (this.game.type == "live") {
+            GameStorage.update(
+              this.gameRef,
+              { drawOffer: V.GetOppCol(this.game.mycolor) }
+            );
+          }
+          break;
+        case "rematchoffer":
+          // NOTE: observers don't know who offered rematch
+          this.rematchOffer = data.data ? "received" : "";
+          if (this.game.type == "live") {
+            GameStorage.update(
+              this.gameRef,
+              { rematchOffer: V.GetOppCol(this.game.mycolor) }
+            );
+          }
           break;
-        case "newchat":
-          this.newChat = data.data;
+        case "newgame": {
+          // A game started, redirect if I'm playing in
+          const gameInfo = data.data;
+          const gameType = this.getGameType(gameInfo);
+          if (
+            gameType == "live" &&
+            gameInfo.players.some(p => p.sid == this.st.user.sid)
+          ) {
+            this.addAndGotoLiveGame(gameInfo);
+          } else if (
+            gameType == "corr" &&
+            gameInfo.players.some(p => p.id == this.st.user.id)
+          ) {
+            this.$router.push("/game/" + gameInfo.id);
+          } else {
+            this.rematchId = gameInfo.id;
+            document.getElementById("modalInfo").checked = true;
+          }
+          break;
+        }
+        case "newchat": {
+          let chat = data.data;
+          this.$refs["chatcomp"].newChat(chat);
+          if (this.game.type == "live") {
+            chat.added = Date.now();
+            GameStorage.update(this.gameRef, { chat: chat });
+          }
           if (!document.getElementById("modalChat").checked)
-            document.getElementById("chatBtn").style.backgroundColor = "#c5fefe";
+            document.getElementById("chatBtn").classList.add("somethingnew");
           break;
+        }
       }
     },
-    socketCloseListener: function() {
-      this.conn = new WebSocket(this.connexionString);
-      this.conn.addEventListener('message', this.socketMessageListener);
-      this.conn.addEventListener('close', this.socketCloseListener);
+    updateCorrGame: function(obj, callback) {
+      ajax(
+        "/games",
+        "PUT",
+        {
+          data: {
+            gid: this.gameRef,
+            newObj: obj
+          },
+          success: () => {
+            if (!!callback) callback();
+          }
+        }
+      );
+    },
+    sendLastate: function(target) {
+      // Send our "last state" informations to opponent
+      const L = this.game.moves.length;
+      const myIdx = ["w", "b"].indexOf(this.game.mycolor);
+      const myLastate = {
+        lastMove:
+          (L > 0 && this.vr.turn != this.game.mycolor)
+            ? this.game.moves[L - 1]
+            : undefined,
+        clock: this.game.clocks[myIdx],
+        // Since we played a move (or abort or resign),
+        // only drawOffer=="sent" is possible
+        drawSent: this.drawOffer == "sent",
+        rematchSent: this.rematchOffer == "sent",
+        score: this.game.score != "*" ? this.game.score : undefined,
+        scoreMsg: this.game.score != "*" ? this.game.scoreMsg : undefined,
+        movesCount: L
+      };
+      this.send("lastate", { data: myLastate, target: target });
     },
     // lastate was received, but maybe game wasn't ready yet:
     processLastate: function() {
       const data = this.lastate;
       this.lastate = undefined; //security...
       const L = this.game.moves.length;
-      if (data.movesCount > L)
-      {
+      const oppIdx = 1 - ["w", "b"].indexOf(this.game.mycolor);
+      this.game.clocks[oppIdx] = data.clock;
+      if (data.movesCount > L) {
         // Just got last move from him
-        this.$set(this.game, "moveToPlay", Object.assign({initime: data.initime}, data.lastMove));
+        this.$refs["basegame"].play(data.lastMove, "received", null, true);
+        this.processMove(data.lastMove);
+      } else {
+        if (!!this.clockUpdate) clearInterval(this.clockUpdate);
+        this.re_setClocks();
       }
-      if (data.drawSent)
-        this.drawOffer = "received";
-      if (data.score != "*")
-      {
+      if (data.drawSent) this.drawOffer = "received";
+      if (data.rematchSent) this.rematchOffer = "received";
+      if (!!data.score) {
         this.drawOffer = "";
         if (this.game.score == "*")
-          this.gameOver(data.score);
+          this.gameOver(data.score, data.scoreMsg);
       }
     },
     clickDraw: function() {
-      if (!this.game.mycolor)
-        return; //I'm just spectator
-      if (["received","threerep"].includes(this.drawOffer))
-      {
-        if (!confirm(this.st.tr["Accept draw?"]))
-          return;
-        const message = (this.drawOffer == "received"
-          ? "Mutual agreement"
-          : "Three repetitions");
-        this.send("draw", {data:message});
+      if (!this.game.mycolor) return; //I'm just spectator
+      if (["received", "threerep"].includes(this.drawOffer)) {
+        if (!confirm(this.st.tr["Accept draw?"])) return;
+        const message =
+          this.drawOffer == "received"
+            ? "Mutual agreement"
+            : "Three repetitions";
+        this.send("draw", { data: message });
         this.gameOver("1/2", message);
-      }
-      else if (this.drawOffer == "") //no effect if drawOffer == "sent"
-      {
-        if (this.game.mycolor != this.vr.turn)
-          return alert(this.st.tr["Draw offer only in your turn"]);
-        if (!confirm(this.st.tr["Offer draw?"]))
+      } else if (this.drawOffer == "") {
+        // No effect if drawOffer == "sent"
+        if (this.game.mycolor != this.vr.turn) {
+          alert(this.st.tr["Draw offer only in your turn"]);
           return;
+        }
+        if (!confirm(this.st.tr["Offer draw?"])) return;
         this.drawOffer = "sent";
         this.send("drawoffer");
-        GameStorage.update(this.gameRef.id, {drawOffer: this.game.mycolor});
+        if (this.game.type == "live") {
+          GameStorage.update(
+            this.gameRef,
+            { drawOffer: this.game.mycolor }
+          );
+        } else this.updateCorrGame({ drawOffer: this.game.mycolor });
+      }
+    },
+    addAndGotoLiveGame: function(gameInfo, callback) {
+      const game = Object.assign(
+        {},
+        gameInfo,
+        {
+          // (other) Game infos: constant
+          fenStart: gameInfo.fen,
+          vname: this.game.vname,
+          created: Date.now(),
+          // Game state (including FEN): will be updated
+          moves: [],
+          clocks: [-1, -1], //-1 = unstarted
+          score: "*"
+        }
+      );
+      GameStorage.add(game, (err) => {
+        // No error expected.
+        if (!err) {
+          if (this.st.settings.sound)
+            new Audio("/sounds/newgame.flac").play().catch(() => {});
+          if (!!callback) callback();
+          this.$router.push("/game/" + gameInfo.id);
+        }
+      });
+    },
+    clickRematch: function() {
+      if (!this.game.mycolor) return; //I'm just spectator
+      if (this.rematchOffer == "received") {
+        // Start a new game!
+        let gameInfo = {
+          id: getRandString(), //ignored if corr
+          fen: V.GenRandInitFen(this.game.randomness),
+          players: this.game.players.reverse(),
+          vid: this.game.vid,
+          cadence: this.game.cadence
+        };
+        const notifyNewGame = () => {
+          const oppsid = this.getOppsid(); //may be null
+          this.send("rnewgame", { data: gameInfo, oppsid: oppsid });
+          // To main Hall if corr game:
+          if (this.game.type == "corr")
+            this.send("newgame", { data: gameInfo, page: "/" });
+          // Also to MyGames page:
+          this.notifyMyGames("newgame", gameInfo);
+        };
+        if (this.game.type == "live")
+          this.addAndGotoLiveGame(gameInfo, notifyNewGame);
+        else {
+          // corr game
+          ajax(
+            "/games",
+            "POST",
+            {
+              // cid is useful to delete the challenge:
+              data: { gameInfo: gameInfo },
+              success: (response) => {
+                gameInfo.id = response.gameId;
+                notifyNewGame();
+                this.$router.push("/game/" + response.gameId);
+              }
+            }
+          );
+        }
+      } else if (this.rematchOffer == "") {
+        this.rematchOffer = "sent";
+        this.send("rematchoffer", { data: true });
+        if (this.game.type == "live") {
+          GameStorage.update(
+            this.gameRef,
+            { rematchOffer: this.game.mycolor }
+          );
+        } else this.updateCorrGame({ rematchOffer: this.game.mycolor });
+      } else if (this.rematchOffer == "sent") {
+        // Toggle rematch offer (on --> off)
+        this.rematchOffer = "";
+        this.send("rematchoffer", { data: false });
+        if (this.game.type == "live") {
+          GameStorage.update(
+            this.gameRef,
+            { rematchOffer: '' }
+          );
+        } else this.updateCorrGame({ rematchOffer: 'n' });
       }
     },
     abortGame: function() {
-      if (!this.game.mycolor || !confirm(this.st.tr["Terminate game?"]))
-        return;
-      this.gameOver("?", "Abort");
+      if (!this.game.mycolor || !confirm(this.st.tr["Terminate game?"])) return;
+      this.gameOver("?", "Stop");
       this.send("abort");
     },
-    resign: function(e) {
+    resign: function() {
       if (!this.game.mycolor || !confirm(this.st.tr["Resign the game?"]))
         return;
-      this.send("resign", {data:this.game.mycolor});
-      this.gameOver(this.game.mycolor=="w" ? "0-1" : "1-0", "Resign");
+      this.send("resign", { data: this.game.mycolor });
+      const score = (this.game.mycolor == "w" ? "0-1" : "1-0");
+      const side = (this.game.mycolor == "w" ? "White" : "Black");
+      this.gameOver(score, side + " surrender");
     },
-    // 3 cases for loading a game:
-    //  - from indexedDB (running or completed live game I play)
-    //  - from server (one correspondance game I play[ed] or not)
-    //  - from remote peer (one live game I don't play, finished or not)
     loadGame: function(game, callback) {
-      const afterRetrieval = async (game) => {
-        const vModule = await import("@/variants/" + game.vname + ".js");
-        window.V = vModule.VariantRules;
-        this.vr = new V(game.fen);
-        const gtype = (game.cadence.indexOf('d') >= 0 ? "corr" : "live");
-        const tc = extractTime(game.cadence);
-        if (!game.chats)
-          game.chats = []; //live games don't have chat history
-        if (gtype == "corr")
-        {
-          if (game.players[0].color == "b")
-          {
-            // Adopt the same convention for live and corr games: [0] = white
-            [ game.players[0], game.players[1] ] =
-              [ game.players[1], game.players[0] ];
+      this.vr = new V(game.fen);
+      const gtype = this.getGameType(game);
+      const tc = extractTime(game.cadence);
+      const myIdx = game.players.findIndex(p => {
+        return p.sid == this.st.user.sid || p.id == this.st.user.id;
+      });
+      const mycolor = [undefined, "w", "b"][myIdx + 1]; //undefined for observers
+      // Live games before 26/03/2020 don't have chat history. TODO: remove next line
+      if (!game.chats) game.chats = [];
+      // Sort chat messages from newest to oldest
+      game.chats.sort((c1, c2) => c2.added - c1.added);
+      if (gtype == "corr") {
+        // NOTE: clocks in seconds
+        game.moves.sort((m1, m2) => m1.idx - m2.idx); //in case of
+        game.clocks = [tc.mainTime, tc.mainTime];
+        const L = game.moves.length;
+        if (game.score == "*") {
+          // Adjust clocks
+          if (L >= 2) {
+            game.clocks[L % 2] -=
+              (Date.now() - game.moves[L-1].played) / 1000;
           }
-          // corr game: needs to compute the clocks + initime
-          // NOTE: clocks in seconds, initime in milliseconds
-          game.clocks = [tc.mainTime, tc.mainTime];
-          game.moves.sort((m1,m2) => m1.idx - m2.idx); //in case of
-          if (game.score == "*") //otherwise no need to bother with time
-          {
-            game.initime = [0, 0];
-            const L = game.moves.length;
-            if (L >= 3)
-            {
-              let addTime = [0, 0];
-              for (let i=2; i<L; i++)
-              {
-                addTime[i%2] += tc.increment -
-                  (game.moves[i].played - game.moves[i-1].played) / 1000;
-              }
-              for (let i=0; i<=1; i++)
-                game.clocks[i] += addTime[i];
+        }
+        if (myIdx >= 0 && game.score == "*" && game.chats.length > 0) {
+          // Did a chat message arrive after my last move?
+          let dtLastMove = 0;
+          if (L == 1 && myIdx == 0)
+            dtLastMove = game.moves[0].played;
+          else if (L >= 2) {
+            if (L % 2 == 0) {
+              // It's now white turn
+              dtLastMove = game.moves[L-1-(1-myIdx)].played;
+            } else {
+              // Black turn:
+              dtLastMove = game.moves[L-1-myIdx].played;
             }
-            if (L >= 1)
-              game.initime[L%2] = game.moves[L-1].played;
           }
-          // Now that we used idx and played, re-format moves as for live games
-          game.moves = game.moves.map( (m) => {
-            const s = m.squares;
-            return {
-              appear: s.appear,
-              vanish: s.vanish,
-              start: s.start,
-              end: s.end,
-            };
-          });
-          // Also sort chat messages (if any)
-          game.chats.sort( (c1,c2) => { return c2.added - c1.added; });
+          if (dtLastMove < game.chats[0].added)
+            document.getElementById("chatBtn").classList.add("somethingnew");
         }
-        const myIdx = game.players.findIndex(p => {
-          return p.sid == this.st.user.sid || p.uid == this.st.user.id;
-        });
-        if (gtype == "live" && game.clocks[0] < 0) //game unstarted
-        {
+        // Now that we used idx and played, re-format moves as for live games
+        game.moves = game.moves.map(m => m.squares);
+      }
+      if (gtype == "live") {
+        if (
+          game.chats.length > 0 &&
+          (!game.initime || game.initime < game.chats[0].added)
+        ) {
+          document.getElementById("chatBtn").classList.add("somethingnew");
+        }
+        if (game.clocks[0] < 0) {
+          // Game is unstarted. clock is ignored until move 2
           game.clocks = [tc.mainTime, tc.mainTime];
-          if (game.score == "*")
-          {
-            game.initime[0] = Date.now();
-            if (myIdx >= 0)
-            {
-              // I play in this live game; corr games don't have clocks+initime
-              GameStorage.update(game.id,
-              {
-                clocks: game.clocks,
-                initime: game.initime,
-              });
-            }
+          if (myIdx >= 0) {
+            // I play in this live game
+            GameStorage.update(game.id, {
+              clocks: game.clocks
+            });
           }
+        } else {
+          if (!!game.initime)
+            // It's my turn: clocks not updated yet
+            game.clocks[myIdx] -= (Date.now() - game.initime) / 1000;
         }
-        if (!!game.drawOffer)
-        {
-          if (game.drawOffer == "t") //three repetitions
-            this.drawOffer = "threerep";
-          else
-          {
-            if (myIdx < 0)
-              this.drawOffer = "received"; //by any of the players
-            else
-            {
-              // I play in this game:
-              if ((game.drawOffer == "w" && myIdx==0) || (game.drawOffer=="b" && myIdx==1))
-                this.drawOffer = "sent";
-              else //all other cases
-                this.drawOffer = "received";
-            }
+      }
+      // TODO: merge next 2 "if" conditions
+      if (!!game.drawOffer) {
+        if (game.drawOffer == "t")
+          // Three repetitions
+          this.drawOffer = "threerep";
+        else {
+          // Draw offered by any of the players:
+          if (myIdx < 0) this.drawOffer = "received";
+          else {
+            // I play in this game:
+            if (
+              (game.drawOffer == "w" && myIdx == 0) ||
+              (game.drawOffer == "b" && myIdx == 1)
+            )
+              this.drawOffer = "sent";
+            else this.drawOffer = "received";
           }
         }
-        if (!!game.scoreMsg)
-          game.scoreMsg = this.st.tr[game.scoreMsg]; //stored in english
-        this.game = Object.assign({},
-          game,
-          // NOTE: assign mycolor here, since BaseGame could also be VS computer
-          {
-            type: gtype,
-            increment: tc.increment,
-            mycolor: [undefined,"w","b"][myIdx+1],
-            // opponent sid not strictly required (or available), but easier
-            // at least oppsid or oppid is available anyway:
-            oppsid: (myIdx < 0 ? undefined : game.players[1-myIdx].sid),
-            oppid: (myIdx < 0 ? undefined : game.players[1-myIdx].uid),
-          }
-        );
-        this.$nextTick(() => {
-          this.game.rendered = true;
-          // Did lastate arrive before game was rendered?
-          if (!!this.lastate)
-            this.processLastate();
-        });
-        this.repeat = {}; //reset: scan past moves' FEN:
-        let repIdx = 0;
-        // NOTE: vr_tmp to obtain FEN strings is redundant with BaseGame
-        let vr_tmp = new V(game.fenStart);
-        game.moves.forEach(m => {
-          vr_tmp.play(m);
-          const fenObj = V.ParseFen( vr_tmp.getFen() );
-          repIdx = fenObj.position + "_" + fenObj.turn;
-          if (!!fenObj.flags)
-            repIdx += "_" + fenObj.flags;
-          this.repeat[repIdx] = (!!this.repeat[repIdx]
-            ? this.repeat[repIdx]+1
-            : 1);
-        });
-        if (this.repeat[repIdx] >= 3)
-          this.drawOffer = "threerep";
-        if (!!callback)
-          callback();
-      };
-      if (!!game)
-        return afterRetrieval(game);
-      if (!!this.gameRef.rid)
-      {
-        // Remote live game: forgetting about callback func... (TODO: design)
-        this.send("askfullgame", {target:this.gameRef.rid});
       }
-      else
-      {
-        // Local or corr game
-        GameStorage.get(this.gameRef.id, afterRetrieval);
+      if (!!game.rematchOffer) {
+        if (myIdx < 0) this.rematchOffer = "received";
+        else {
+          // I play in this game:
+          if (
+            (game.rematchOffer == "w" && myIdx == 0) ||
+            (game.rematchOffer == "b" && myIdx == 1)
+          )
+            this.rematchOffer = "sent";
+          else this.rematchOffer = "received";
+        }
       }
-    },
-    // Post-process a move (which was just played in BaseGame)
-    processMove: function(move) {
-      if (this.game.type == "corr" && move.color == this.game.mycolor)
-      {
-        if (!confirm(this.st.tr["Move played:"] + " " + move.notation + "\n" + this.st.tr["Are you sure?"]))
-          return this.$set(this.game, "moveToUndo", move);
+      this.repeat = {}; //reset: scan past moves' FEN:
+      let repIdx = 0;
+      let vr_tmp = new V(game.fenStart);
+      let curTurn = "n";
+      game.moves.forEach(m => {
+        playMove(m, vr_tmp);
+        const fenIdx = vr_tmp.getFen().replace(/ /g, "_");
+        this.repeat[fenIdx] = this.repeat[fenIdx]
+          ? this.repeat[fenIdx] + 1
+          : 1;
+      });
+      if (this.repeat[repIdx] >= 3) this.drawOffer = "threerep";
+      this.game = Object.assign(
+        // NOTE: assign mycolor here, since BaseGame could also be VS computer
+        {
+          type: gtype,
+          increment: tc.increment,
+          mycolor: mycolor,
+          // opponent sid not strictly required (or available), but easier
+          // at least oppsid or oppid is available anyway:
+          oppsid: myIdx < 0 ? undefined : game.players[1 - myIdx].sid,
+          oppid: myIdx < 0 ? undefined : game.players[1 - myIdx].id
+        },
+        game
+      );
+      this.$refs["basegame"].re_setVariables(this.game);
+      if (!this.gameIsLoading) {
+        // Initial loading:
+        this.gotMoveIdx = game.moves.length - 1;
+        // If we arrive here after 'nextGame' action, the board might be hidden
+        let boardDiv = document.querySelector(".game");
+        if (!!boardDiv && boardDiv.style.visibility == "hidden")
+          boardDiv.style.visibility = "visible";
       }
-      // Update storage (corr or live) if I play in the game
-      const colorIdx = ["w","b"].indexOf(move.color);
-      const nextIdx = ["w","b"].indexOf(this.vr.turn);
-      // https://stackoverflow.com/a/38750895
-      if (!!this.game.mycolor)
-      {
-        const allowed_fields = ["appear", "vanish", "start", "end"];
-        // NOTE: 'var' to see this variable outside this block
-        var filtered_move = Object.keys(move)
-          .filter(key => allowed_fields.includes(key))
-          .reduce((obj, key) => {
-            obj[key] = move[key];
-            return obj;
-          }, {});
+      this.re_setClocks();
+      this.$nextTick(() => {
+        this.game.rendered = true;
+        // Did lastate arrive before game was rendered?
+        if (this.lastate) this.processLastate();
+      });
+      if (this.lastateAsked) {
+        this.lastateAsked = false;
+        this.sendLastate(game.oppsid);
       }
-      // Send move ("newmove" event) to people in the room (if our turn)
-      let addTime = 0;
-      if (move.color == this.game.mycolor)
-      {
-        if (this.drawOffer == "received") //I refuse draw
-          this.drawOffer = "";
-        if (this.game.moves.length >= 2) //after first move
-        {
-          const elapsed = Date.now() - this.game.initime[colorIdx];
-          // elapsed time is measured in milliseconds
-          addTime = this.game.increment - elapsed/1000;
-        }
-        const sendMove = Object.assign({},
-          filtered_move,
-          {
-            addTime: addTime,
-            cancelDrawOffer: this.drawOffer=="",
-          });
-        this.send("newmove", {data: sendMove});
-        // (Add)Time indication: useful in case of lastate infos requested
-        move.addTime = addTime;
+      if (this.gameIsLoading) {
+        this.gameIsLoading = false;
+        if (this.gotMoveIdx >= game.moves.length)
+          // Some moves arrived meanwhile...
+          this.askGameAgain();
       }
-      else
-        addTime = move.addTime; //supposed transmitted
-      // Update current game object:
-      this.game.moves.push(move);
-      this.game.fen = move.fen;
-      this.$set(this.game.clocks, colorIdx, this.game.clocks[colorIdx] + addTime);
-      // move.initime is set only when I receive a "lastate" move from opponent
-      this.game.initime[nextIdx] = move.initime || Date.now();
-      // If repetition detected, consider that a draw offer was received:
-      const fenObj = V.ParseFen(move.fen);
-      let repIdx = fenObj.position + "_" + fenObj.turn;
-      if (!!fenObj.flags)
-        repIdx += "_" + fenObj.flags;
-      this.repeat[repIdx] = (!!this.repeat[repIdx]
-        ? this.repeat[repIdx]+1
-        : 1);
-      if (this.repeat[repIdx] >= 3)
-        this.drawOffer = "threerep";
-      else if (this.drawOffer == "threerep")
-        this.drawOffer = "";
-      // Since corr games are stored at only one location, update should be
-      // done only by one player for each move:
-      if (!!this.game.mycolor &&
-        (this.game.type == "live" || move.color == this.game.mycolor))
-      {
-        let drawCode = "";
-        switch (this.drawOffer)
-        {
-          case "threerep":
-            drawCode = "t";
-            break;
-          case "sent":
-            drawCode = this.game.mycolor;
-            break;
-          case "received":
-            drawCode = this.vr.turn;
-            break;
-        }
-        if (this.game.type == "corr")
-        {
-          GameStorage.update(this.gameRef.id,
+      if (!!callback) callback();
+    },
+    loadVariantThenGame: async function(game, callback) {
+      await import("@/variants/" + game.vname + ".js")
+      .then((vModule) => {
+        window.V = vModule[game.vname + "Rules"];
+        this.loadGame(game, callback);
+      });
+    },
+    // 3 cases for loading a game:
+    //  - from indexedDB (running or completed live game I play)
+    //  - from server (one correspondance game I play[ed] or not)
+    //  - from remote peer (one live game I don't play, finished or not)
+    fetchGame: function(callback) {
+      if (Number.isInteger(this.gameRef) || !isNaN(parseInt(this.gameRef))) {
+        // corr games identifiers are integers
+        ajax(
+          "/games",
+          "GET",
           {
-            fen: move.fen,
-            move:
+            data: { gid: this.gameRef },
+            success: (res) => {
+              res.game.moves.forEach(m => {
+                m.squares = JSON.parse(m.squares);
+              });
+              callback(res.game);
+            }
+          }
+        );
+      } else
+        // Local game (or live remote)
+        GameStorage.get(this.gameRef, callback);
+    },
+    re_setClocks: function() {
+      this.virtualClocks = this.game.clocks.map(s => ppt(s).split(':'));
+      if (this.game.moves.length < 2 || this.game.score != "*") {
+        // 1st move not completed yet, or game over: freeze time
+        return;
+      }
+      const currentTurn = this.vr.turn;
+      const currentMovesCount = this.game.moves.length;
+      const colorIdx = ["w", "b"].indexOf(currentTurn);
+      this.clockUpdate = setInterval(
+        () => {
+          if (
+            this.game.clocks[colorIdx] < 0 ||
+            this.game.moves.length > currentMovesCount ||
+            this.game.score != "*"
+          ) {
+            clearInterval(this.clockUpdate);
+            this.clockUpdate = null;
+            if (this.game.clocks[colorIdx] < 0)
+              this.gameOver(
+                currentTurn == "w" ? "0-1" : "1-0",
+                "Time"
+              );
+          } else {
+            this.$set(
+              this.virtualClocks,
+              colorIdx,
+              ppt(Math.max(0, --this.game.clocks[colorIdx])).split(':')
+            );
+          }
+        },
+        1000
+      );
+    },
+    // Update variables and storage after a move:
+    processMove: function(move, data) {
+      if (!data) data = {};
+      const moveCol = this.vr.turn;
+      const colorIdx = ["w", "b"].indexOf(moveCol);
+      const nextIdx = 1 - colorIdx;
+      const doProcessMove = () => {
+        const origMovescount = this.game.moves.length;
+        // The move is (about to be) played: stop clock
+        clearInterval(this.clockUpdate);
+        this.clockUpdate = null;
+        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
+          if (this.drawOffer == "received")
+            // I refuse draw
+            this.drawOffer = "";
+          if (this.game.type == "live" && origMovescount >= 2) {
+            this.game.clocks[colorIdx] += this.game.increment;
+            // For a correct display in casqe of disconnected opponent:
+            this.$set(
+              this.virtualClocks,
+              colorIdx,
+              ppt(this.game.clocks[colorIdx]).split(':')
+            );
+            GameStorage.update(this.gameRef, {
+              // It's not my turn anymore:
+              initime: null
+            });
+          }
+        }
+        // Update current game object:
+        playMove(move, this.vr);
+        if (!data.score)
+          // Received move, score is computed in BaseGame, but maybe not yet.
+          // ==> Compute it here, although this is redundant (TODO)
+          data.score = this.vr.getCurrentScore();
+        if (data.score != "*") this.gameOver(data.score);
+        this.game.moves.push(move);
+        this.game.fen = this.vr.getFen();
+        if (this.game.type == "corr") {
+          // In corr games, just reset clock to mainTime:
+          this.game.clocks[colorIdx] = extractTime(this.game.cadence).mainTime;
+        }
+        // If repetition detected, consider that a draw offer was received:
+        const fenObj = this.vr.getFenForRepeat();
+        this.repeat[fenObj] =
+          !!this.repeat[fenObj]
+            ? this.repeat[fenObj] + 1
+            : 1;
+        if (this.repeat[fenObj] >= 3) this.drawOffer = "threerep";
+        else if (this.drawOffer == "threerep") this.drawOffer = "";
+        if (!!this.game.mycolor && !data.receiveMyMove) {
+          // NOTE: 'var' to see that variable outside this block
+          var filtered_move = getFilteredMove(move);
+        }
+        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
+          // Notify turn on MyGames page:
+          this.notifyMyGames(
+            "turn",
             {
-              squares: filtered_move,
-              played: Date.now(),
-              idx: this.game.moves.length - 1,
-            },
-            drawOffer: drawCode || "n", //"n" for "None" to force reset (otherwise it's ignored)
+              gid: this.gameRef,
+              turn: this.vr.turn
+            }
+          );
+        }
+        // Since corr games are stored at only one location, update should be
+        // done only by one player for each move:
+        if (
+          this.game.type == "live" &&
+          !!this.game.mycolor &&
+          moveCol != this.game.mycolor &&
+          this.game.moves.length >= 2
+        ) {
+          // Receive a move: update initime
+          this.game.initime = Date.now();
+          GameStorage.update(this.gameRef, {
+            // It's my turn now!
+            initime: this.game.initime
           });
         }
-        else //live
-        {
-          GameStorage.update(this.gameRef.id,
-          {
-            fen: move.fen,
+        if (
+          !!this.game.mycolor &&
+          !data.receiveMyMove &&
+          (this.game.type == "live" || moveCol == this.game.mycolor)
+        ) {
+          let drawCode = "";
+          switch (this.drawOffer) {
+            case "threerep":
+              drawCode = "t";
+              break;
+            case "sent":
+              drawCode = this.game.mycolor;
+              break;
+            case "received":
+              drawCode = V.GetOppCol(this.game.mycolor);
+              break;
+          }
+          if (this.game.type == "corr") {
+            // corr: only move, fen and score
+            this.updateCorrGame({
+              fen: this.game.fen,
+              move: {
+                squares: filtered_move,
+                idx: origMovescount
+              },
+              // Code "n" for "None" to force reset (otherwise it's ignored)
+              drawOffer: drawCode || "n"
+            });
+          }
+          else {
+            const updateStorage = () => {
+              GameStorage.update(this.gameRef, {
+                fen: this.game.fen,
+                move: filtered_move,
+                moveIdx: origMovescount,
+                clocks: this.game.clocks,
+                drawOffer: drawCode
+              });
+            };
+            // The active tab can update storage immediately
+            if (this.focus) updateStorage();
+            // Small random delay otherwise
+            else setTimeout(updateStorage, 500 + 1000 * Math.random());
+          }
+        }
+        // Send move ("newmove" event) to people in the room (if our turn)
+        if (moveCol == this.game.mycolor && !data.receiveMyMove) {
+          let sendMove = {
             move: filtered_move,
-            clocks: this.game.clocks,
-            initime: this.game.initime,
-            drawOffer: drawCode,
+            index: origMovescount,
+            // color is required to check if this is my move (if several tabs opened)
+            color: moveCol,
+            cancelDrawOffer: this.drawOffer == ""
+          };
+          if (this.game.type == "live")
+            sendMove["clock"] = this.game.clocks[colorIdx];
+          // (Live) Clocks will re-start when the opponent pingback arrive
+          this.opponentGotMove = false;
+          this.send("newmove", {data: sendMove});
+          // If the opponent doesn't reply gotmove soon enough, re-send move:
+          // Do this at most 2 times, because mpore would mean network issues,
+          // opponent would then be expected to disconnect/reconnect.
+          let counter = 1;
+          const currentUrl = document.location.href;
+          this.retrySendmove = setInterval(
+            () => {
+              if (
+                counter >= 3 ||
+                this.opponentGotMove ||
+                document.location.href != currentUrl //page change
+              ) {
+                clearInterval(this.retrySendmove);
+                return;
+              }
+              const oppsid = this.getOppsid();
+              if (!oppsid)
+                // Opponent is disconnected: he'll ask last state
+                clearInterval(this.retrySendmove);
+              else {
+                this.send("newmove", { data: sendMove, target: oppsid });
+                counter++;
+              }
+            },
+            1500
+          );
+        }
+        else
+          // Not my move or I'm an observer: just start other player's clock
+          this.re_setClocks();
+      };
+      if (
+        this.game.type == "corr" &&
+        moveCol == this.game.mycolor &&
+        !data.receiveMyMove
+      ) {
+        let boardDiv = document.querySelector(".game");
+        const afterSetScore = () => {
+          doProcessMove();
+          if (this.st.settings.gotonext && this.nextIds.length > 0)
+            this.showNextGame();
+          else {
+            // The board might have been hidden:
+            if (boardDiv.style.visibility == "hidden")
+              boardDiv.style.visibility = "visible";
+            if (data.score == "*") this.re_setClocks();
+          }
+        };
+        let el = document.querySelector("#buttonsConfirm > .acceptBtn");
+        // We may play several moves in a row: in case of, remove listener:
+        let elClone = el.cloneNode(true);
+        el.parentNode.replaceChild(elClone, el);
+        elClone.addEventListener(
+          "click",
+          () => {
+            document.getElementById("modalConfirm").checked = false;
+            if (!!data.score && data.score != "*")
+              // Set score first
+              this.gameOver(data.score, null, afterSetScore);
+            else afterSetScore();
+          }
+        );
+        // PlayOnBoard is enough, and more appropriate for Synchrone Chess
+        V.PlayOnBoard(this.vr.board, move);
+        const position = this.vr.getBaseFen();
+        V.UndoOnBoard(this.vr.board, move);
+        if (["all","byrow"].includes(V.ShowMoves)) {
+          this.curDiag = getDiagram({
+            position: position,
+            orientation: V.CanFlip ? this.game.mycolor : "w"
           });
+          document.querySelector("#confirmDiv > .card").style.width =
+            boardDiv.offsetWidth + "px";
+        } else {
+          // Incomplete information: just ask confirmation
+          // Hide the board, because otherwise it could reveal infos
+          boardDiv.style.visibility = "hidden";
+          this.moveNotation = getFullNotation(move);
         }
+        document.getElementById("modalConfirm").checked = true;
+      }
+      else {
+        // Normal situation
+        if (!!data.score && data.score != "*")
+          this.gameOver(data.score, null, doProcessMove);
+        else doProcessMove();
       }
     },
-    resetChatColor: function() {
-      // TODO: this is called twice, once on opening an once on closing
-      document.getElementById("chatBtn").style.backgroundColor = "#e2e2e2";
-    },
-    processChat: function(chat) {
-      this.send("newchat", {data:chat});
-      // NOTE: anonymous chats in corr games are not stored on server (TODO?)
-      if (this.game.type == "corr" && this.st.user.id > 0)
-        GameStorage.update(this.gameRef.id, {chat: chat});
+    cancelMove: function() {
+      let boardDiv = document.querySelector(".game");
+      if (boardDiv.style.visibility == "hidden")
+        boardDiv.style.visibility = "visible";
+      document.getElementById("modalConfirm").checked = false;
+      this.$refs["basegame"].cancelLastMove();
     },
-    gameOver: function(score, scoreMsg) {
+    // In corr games, callback to change page only after score is set:
+    gameOver: function(score, scoreMsg, callback) {
       this.game.score = score;
-      this.game.scoreMsg = this.st.tr[(!!scoreMsg
-        ? scoreMsg
-        : getScoreMessage(score))];
+      if (!scoreMsg) scoreMsg = getScoreMessage(score);
+      this.game.scoreMsg = scoreMsg;
+      this.$set(this.game, "scoreMsg", scoreMsg);
       const myIdx = this.game.players.findIndex(p => {
-        return p.sid == this.st.user.sid || p.uid == this.st.user.id;
+        return p.sid == this.st.user.sid || p.id == this.st.user.id;
       });
-      if (myIdx >= 0) //OK, I play in this game
-      {
-        GameStorage.update(this.gameRef.id,
-          {score: score, scoreMsg: scoreMsg});
+      if (myIdx >= 0) {
+        // OK, I play in this game
+        const scoreObj = {
+          score: score,
+          scoreMsg: scoreMsg
+        };
+        if (this.game.type == "live") {
+          GameStorage.update(this.gameRef, scoreObj);
+          // Notify myself locally if I'm elsewhere:
+          if (!this.focus) {
+            notify(
+              "Game over",
+              { body: score + " : " + scoreMsg }
+            );
+          }
+          if (!!callback) callback();
+        }
+        else this.updateCorrGame(scoreObj, callback);
         // Notify the score to main Hall. TODO: only one player (currently double send)
-        this.send("result", {gid:this.game.id, score:score});
+        this.send("result", { gid: this.game.id, score: score });
+        // Also to MyGames page (TODO: doubled as well...)
+        this.notifyMyGames(
+          "score",
+          {
+            gid: this.gameRef,
+            score: score
+          }
+        );
       }
-    },
-  },
+      else if (!!callback) callback();
+    }
+  }
 };
 </script>
 
 <style lang="sass" scoped>
+#infoDiv > .card
+  padding: 15px 0
+  max-width: 430px
+
 .connected
   background-color: lightgreen
 
@@ -706,6 +1500,9 @@ export default {
   color: grey
   font-style: italic
 
+#playersInfo > p
+  margin: 0
+
 @media screen and (min-width: 768px)
   #actions
     width: 300px
@@ -715,10 +1512,17 @@ export default {
 
 #actions
   display: inline-block
-  margin-top: 10px
-  button
-    display: inline-block
-    margin: 0
+  margin: 0
+
+button
+  display: inline-block
+  margin: 0
+  display: inline-flex
+  img
+    height: 22px
+    display: flex
+    @media screen and (max-width: 767px)
+      height: 18px
 
 @media screen and (max-width: 767px)
   #aboveBoard
@@ -727,30 +1531,55 @@ export default {
   #aboveBoard
     margin-left: 30%
 
-.variant-info
+.variant-cadence
+  padding-right: 10px
+
+.variant-name
   font-weight: bold
   padding-right: 10px
 
-.name
+span#nextGame
+  background-color: #edda99
+  cursor: pointer
+  display: inline-block
+  margin-right: 10px
+
+span.name
   font-size: 1.5rem
-  padding: 1px
+  padding: 0 3px
 
-.time
+span.time
   font-size: 2rem
   display: inline-block
-  margin-left: 10px
+  .time-left
+    margin-left: 10px
+  .time-right
+    margin-left: 5px
+  .time-separator
+    margin-left: 5px
+    position: relative
+    top: -1px
+
+span.yourturn
+  color: #831B1B
+  .time-separator
+    animation: blink-animation 2s steps(3, start) infinite
+@keyframes blink-animation
+  to
+    visibility: hidden
 
 .split-names
   display: inline-block
   margin: 0 15px
 
-#chat
+#chatWrap > .card
   padding-top: 20px
   max-width: 767px
-  border: none;
+  border: none
 
-#chatBtn
-  margin: 0 10px 0 0
+#confirmDiv > .card
+  max-width: 767px
+  max-height: 100%
 
 .draw-sent, .draw-sent:hover
   background-color: lightyellow
@@ -760,4 +1589,28 @@ export default {
 
 .draw-threerep, .draw-threerep:hover
   background-color: #e4d1fc
+
+.rematch-sent, .rematch-sent:hover
+  background-color: lightyellow
+
+.rematch-received, .rematch-received:hover
+  background-color: lightgreen
+
+.somethingnew
+  background-color: #c5fefe
+
+.diagram
+  margin: 0 auto
+  width: 100%
+
+#buttonsConfirm
+  margin: 0
+  & > button > span
+    width: 100%
+    text-align: center
+
+button.acceptBtn
+  background-color: lightgreen
+button.refuseBtn
+  background-color: red
 </style>