X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fviews%2FHall.vue;h=ac2e26ecf8c8f6e68f13ca9ae28703b4f7e639f0;hb=584f81b93154313a3856112400b7df98e0eb2632;hp=5ceb7e329b0b3bf8c43d843b9e6385cf1ba5cc50;hpb=09d375717c256a2cbd71a5d3b3a4e21aee17c0ec;p=vchess.git

diff --git a/client/src/views/Hall.vue b/client/src/views/Hall.vue
index 5ceb7e32..ac2e26ec 100644
--- a/client/src/views/Hall.vue
+++ b/client/src/views/Hall.vue
@@ -10,15 +10,20 @@ main
       p(v-html="infoMessage")
   input#modalAccept.modal(type="checkbox")
   div#acceptDiv(role="dialog")
-    .card.text-center
-      p
+    .card
+      p.text-center
         span.variantName {{ curChallToAccept.vname }} 
         span {{ curChallToAccept.cadence }} 
         span {{ st.tr["with"] + " " + curChallToAccept.from.name }}
-      .diagram(v-html="tchallDiag")
-      .button-group#buttonsTchall
-        button.acceptBtn(@click="decisionChallenge(true)") {{ st.tr["Accept challenge?"] }}
-        button.refuseBtn(@click="decisionChallenge(false)") {{ st.tr["Refuse"] }}
+      .diagram(
+        v-if="!!curChallToAccept.fen"
+        v-html="tchallDiag"
+      )
+      .button-group#buttonsTchall(:style="tchallButtonsMargin()")
+        button.acceptBtn(@click="decisionChallenge(true)")
+          span {{ st.tr["Accept challenge?"] }}
+        button.refuseBtn(@click="decisionChallenge(false)")
+          span {{ st.tr["Refuse"] }}
   input#modalNewgame.modal(
     type="checkbox"
     @change="cadenceFocusIfOpened($event)"
@@ -45,15 +50,21 @@ main
         fieldset
           label(for="cadence") {{ st.tr["Cadence"] }} *
           div#predefinedCadences
-            button(type="button") 5+3
             button(type="button") 15+5
             button(type="button") 45+30
-            button(type="button") 7d+2d
+            button(type="button") 3d
+            button(type="button") 7d
           input#cadence(
             type="text"
             v-model="newchallenge.cadence"
-            placeholder="5+0, 1h+30s, 7d+1d ..."
+            placeholder="5+0, 1h+30s, 5d ..."
           )
+        fieldset
+          label(for="selectRandomLevel") {{ st.tr["Randomness"] }} *
+          select#selectRandomLevel(v-model="newchallenge.randomness")
+            option(value="0") {{ st.tr["Deterministic"] }}
+            option(value="1") {{ st.tr["Symmetric random"] }}
+            option(value="2") {{ st.tr["Asymmetric random"] }}
         fieldset(v-if="st.user.id > 0")
           label(for="selectPlayers") {{ st.tr["Play with?"] }}
           input#selectPlayers(
@@ -71,7 +82,7 @@ main
       button(@click="newChallenge()") {{ st.tr["Send challenge"] }}
   input#modalPeople.modal(
     type="checkbox"
-    @click="resetChatColor()"
+    @click="resetSocialColor()"
   )
   div#peopleWrap(
     role="dialog"
@@ -87,10 +98,15 @@ main
           )
             span {{ people[sid].name }}
             button.player-action(
-              v-if="isGamer(sid) || (st.user.id > 0 && sid!=st.user.sid)"
-              @click="challOrWatch(sid)"
+              v-if="isGamer(sid)"
+              @click="watchGame(sid)"
             )
-              | {{ getActionLabel(sid) }}
+              | {{ st.tr["Observe"] }}
+            button.player-action(
+              v-else-if="isFocusedOnHall(sid)"
+              @click="challenge(sid)"
+            )
+              | {{ st.tr["Challenge"] }}
           p.anonymous @nonymous ({{ anonymousCount }})
         #chat
           Chat(
@@ -104,7 +120,7 @@ main
       .button-group
         button#peopleBtn(onClick="window.doClick('modalPeople')")
           | {{ st.tr["Who's there?"] }}
-        button(onClick="window.doClick('modalNewgame')")
+        button(@click="showNewchallengeForm()")
           | {{ st.tr["New game"] }}
   .row
     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
@@ -178,6 +194,7 @@ export default {
         vid: parseInt(localStorage.getItem("vid")) || 0,
         to: "", //name of challenged player (if any)
         cadence: localStorage.getItem("cadence") || "",
+        randomness: parseInt(localStorage.getItem("randomness")) || 2,
         // VariantRules object, stored to not interfere with
         // diagrams of targetted challenges:
         V: null,
@@ -199,7 +216,7 @@ export default {
     "st.variants": function() {
       // Set potential challenges and games variant names:
       this.challenges.concat(this.games).forEach(o => {
-        if (o.vname == "") o.vname = this.getVname(o.vid);
+        if (!o.vname) o.vname = this.getVname(o.vid);
       });
       if (!this.newchallenge.V && this.newchallenge.vid > 0)
         this.loadNewchallVariant();
@@ -209,7 +226,8 @@ export default {
     anonymousCount: function() {
       let count = 0;
       Object.values(this.people).forEach(p => {
-        count += !p.name ? 1 : 0;
+        // Do not cound people who did not send their identity yet:
+        count += (!p.name && p.id === 0) ? 1 : 0;
       });
       return count;
     }
@@ -218,66 +236,85 @@ export default {
     if (this.st.variants.length > 0 && this.newchallenge.vid > 0)
       this.loadNewchallVariant();
     const my = this.st.user;
-    this.$set(this.people, my.sid, { id: my.id, name: my.name, pages: ["/"] });
+    this.$set(
+      this.people,
+      my.sid,
+      {
+        id: my.id,
+        name: my.name,
+        pages: [{ path: "/", focus: true }]
+      }
+    );
     // Ask server for current corr games (all but mines)
     ajax(
       "/games",
       "GET",
-      { uid: this.st.user.id, excluded: true },
-      response => {
-        this.games = this.games.concat(
-          response.games.map(g => {
-            const type = this.classifyObject(g);
-            const vname = this.getVname(g.vid);
-            return Object.assign({}, g, { type: type, vname: vname });
-          })
-        );
+      {
+        data: { uid: this.st.user.id, excluded: true },
+        success: (response) => {
+          this.games = this.games.concat(
+            response.games.map(g => {
+              const type = this.classifyObject(g);
+              const vname = this.getVname(g.vid);
+              return Object.assign({}, g, { type: type, vname: vname });
+            })
+          );
+        }
       }
     );
     // Also ask for corr challenges (open + sent by/to me)
-    ajax("/challenges", "GET", { uid: this.st.user.id }, response => {
-      // Gather all senders names, and then retrieve full identity:
-      // (TODO [perf]: some might be online...)
-      let names = {};
-      response.challenges.forEach(c => {
-        if (c.uid != this.st.user.id) names[c.uid] = "";
-        else if (!!c.target && c.target != this.st.user.id)
-          names[c.target] = "";
-      });
-      const addChallenges = () => {
-        names[this.st.user.id] = this.st.user.name; //in case of
-        this.challenges = this.challenges.concat(
-          response.challenges.map(c => {
-            const from = { name: names[c.uid], id: c.uid }; //or just name
-            const type = this.classifyObject(c);
-            const vname = this.getVname(c.vid);
-            return Object.assign(
-              {},
+    ajax(
+      "/challenges",
+      "GET",
+      {
+        data: { uid: this.st.user.id },
+        success: (response) => {
+          // Gather all senders names, and then retrieve full identity:
+          // (TODO [perf]: some might be online...)
+          let names = {};
+          response.challenges.forEach(c => {
+            if (c.uid != this.st.user.id) names[c.uid] = "";
+            else if (!!c.target && c.target != this.st.user.id)
+              names[c.target] = "";
+          });
+          const addChallenges = () => {
+            names[this.st.user.id] = this.st.user.name; //in case of
+            this.challenges = this.challenges.concat(
+              response.challenges.map(c => {
+                const from = { name: names[c.uid], id: c.uid }; //or just name
+                const type = this.classifyObject(c);
+                const vname = this.getVname(c.vid);
+                return Object.assign(
+                  {},
+                  {
+                    type: type,
+                    vname: vname,
+                    from: from,
+                    to: c.target ? names[c.target] : ""
+                  },
+                  c
+                );
+              })
+            );
+          };
+          if (Object.keys(names).length > 0) {
+            ajax(
+              "/users",
+              "GET",
               {
-                type: type,
-                vname: vname,
-                from: from,
-                to: c.target ? names[c.target] : ""
-              },
-              c
+                data: { ids: Object.keys(names).join(",") },
+                success: (response2) => {
+                  response2.users.forEach(u => {
+                    names[u.id] = u.name;
+                  });
+                  addChallenges();
+                }
+              }
             );
-          })
-        );
-      };
-      if (Object.keys(names).length > 0) {
-        ajax(
-          "/users",
-          "GET",
-          { ids: Object.keys(names).join(",") },
-          response2 => {
-            response2.users.forEach(u => {
-              names[u.id] = u.name;
-            });
-            addChallenges();
-          }
-        );
-      } else addChallenges();
-    });
+          } else addChallenges();
+        }
+      }
+    );
     const connectAndPoll = () => {
       this.send("connect");
       this.send("pollclientsandgamers");
@@ -290,6 +327,7 @@ export default {
       "&tmpId=" +
       getRandString() +
       "&page=" +
+      // Hall: path is "/" (could be hard-coded as well)
       encodeURIComponent(this.$route.path);
     this.conn = new WebSocket(this.connexionString);
     this.conn.onopen = connectAndPoll;
@@ -297,6 +335,7 @@ export default {
     this.conn.onclose = this.socketCloseListener;
   },
   mounted: function() {
+    document.addEventListener('visibilitychange', this.visibilityChange);
     ["peopleWrap", "infoDiv", "newgameDiv"].forEach(eltName => {
       let elt = document.getElementById(eltName);
       elt.addEventListener("click", processModalClick);
@@ -315,16 +354,38 @@ export default {
     this.setDisplay("g", showGtype);
   },
   beforeDestroy: function() {
+    document.removeEventListener('visibilitychange', this.visibilityChange);
     this.send("disconnect");
   },
   methods: {
-    // Helpers:
+    visibilityChange: function() {
+      // TODO: Use document.hidden? https://webplatform.news/issues/2019-03-27
+      this.send(
+        document.visibilityState == "visible"
+          ? "getfocus"
+          : "losefocus"
+      );
+    },
+    partialResetNewchallenge: function() {
+      // Reset potential target and custom FEN:
+      this.newchallenge.to = "";
+      this.newchallenge.fen = "";
+      this.newchallenge.diag = "";
+    },
+    showNewchallengeForm: function() {
+      this.partialResetNewchallenge();
+      window.doClick("modalNewgame");
+    },
+    tchallButtonsMargin: function() {
+      if (!!this.curChallToAccept.fen) return { "margin-top": "10px" };
+      return {};
+    },
     cadenceFocusIfOpened: function() {
       if (event.target.checked)
         document.getElementById("cadence").focus();
     },
     send: function(code, obj) {
-      if (this.conn) {
+      if (!!this.conn) {
         this.conn.send(JSON.stringify(Object.assign({ code: code }, obj)));
       }
     },
@@ -354,36 +415,42 @@ export default {
         : document.getElementById("btn" + letter.toUpperCase() + type);
       elt.classList.add("active");
       elt.classList.remove("somethingnew"); //in case of
-      if (elt.previousElementSibling)
+      if (!!elt.previousElementSibling)
         elt.previousElementSibling.classList.remove("active");
       else elt.nextElementSibling.classList.remove("active");
     },
     isGamer: function(sid) {
-      return this.people[sid].pages.some(p => p.indexOf("/game/") >= 0);
+      return this.people[sid].pages
+        .some(p => p.focus && p.path.indexOf("/game/") >= 0);
     },
-    getActionLabel: function(sid) {
-      return this.people[sid].pages.some(p => p == "/")
-        ? "Challenge"
-        : "Observe";
+    isFocusedOnHall: function(sid) {
+      return (
+        // This is meant to challenge people, thus the next 2 conditions:
+        this.st.user.id > 0 &&
+        sid != this.st.user.sid &&
+        this.people[sid].pages.some(p => p.path == "/" && p.focus)
+      );
     },
-    challOrWatch: function(sid) {
-      if (this.people[sid].pages.some(p => p == "/")) {
-        // Available, in Hall
-        this.newchallenge.to = this.people[sid].name;
-        document.getElementById("modalPeople").checked = false;
-        window.doClick("modalNewgame");
-      } else {
-        // In some game, maybe playing maybe not: show a random one
-        let gids = [];
-        this.people[sid].pages.forEach(p => {
-          const matchGid = p.match(/[a-zA-Z0-9]+$/);
-          if (matchGid) gids.push(matchGid[0]);
-        });
-        const gid = gids[Math.floor(Math.random() * gids.length)];
-        const game = this.games.find(g => g.id == gid);
-        if (game) this.showGame(game);
-        else this.$router.push("/game/" + gid); //game vs. me
-      }
+    challenge: function(sid) {
+      this.partialResetNewchallenge();
+      // Available, in Hall
+      this.newchallenge.to = this.people[sid].name;
+      document.getElementById("modalPeople").checked = false;
+      window.doClick("modalNewgame");
+    },
+    watchGame: function(sid) {
+      // In some game, maybe playing maybe not: show a random one
+      let gids = [];
+      this.people[sid].pages.forEach(p => {
+        if (p.focus) {
+          const matchGid = p.path.match(/[a-zA-Z0-9]+$/);
+          if (!!matchGid) gids.push(matchGid[0]);
+        }
+      });
+      const gid = gids[Math.floor(Math.random() * gids.length)];
+      const game = this.games.find(g => g.id == gid);
+      if (!!game) this.showGame(game);
+      else this.$router.push("/game/" + gid); //game vs. me
     },
     showGame: function(g) {
       // NOTE: we are an observer, since only games I don't play are shown here
@@ -393,13 +460,22 @@ export default {
         url += "?rid=" + g.rids[Math.floor(Math.random() * g.rids.length)];
       this.$router.push(url);
     },
-    resetChatColor: function() {
+    resetSocialColor: function() {
       // TODO: this is called twice, once on opening an once on closing
       document.getElementById("peopleBtn").classList.remove("somethingnew");
     },
     processChat: function(chat) {
       this.send("newchat", { data: chat });
     },
+    getOppsid: function(c) {
+      let oppsid = c.from.sid; //may not be defined if corr + offline opp
+      if (!oppsid) {
+        oppsid = Object.keys(this.people).find(
+          sid => this.people[sid].id == c.from.id
+        );
+      }
+      return oppsid;
+    },
     // Messaging center:
     socketMessageListener: function(msg) {
       if (!this.conn) return;
@@ -412,17 +488,19 @@ export default {
           data.sockIds.forEach(s => {
             const page = s.page || "/";
             if (s.sid != this.st.user.sid && !identityAsked[s.sid]) {
-              identityAsked[s.sid] = true;
               this.send("askidentity", { target: s.sid, page: page });
+              identityAsked[s.sid] = true;
+            }
+            if (!this.people[s.sid]) {
+              // Do not set name or id: identity unknown yet
+              this.people[s.sid] = { pages: [{path: page, focus: true}] };
             }
-            if (!this.people[s.sid])
-              this.$set(this.people, s.sid, { id: 0, name: "", pages: [page] });
-            else if (this.people[s.sid].pages.indexOf(page) < 0)
-              this.people[s.sid].pages.push(page);
+            else if (!(this.people[s.sid].pages.find(p => p.path == page)))
+              this.people[s.sid].pages.push({ path: page, focus: true });
             if (!s.page)
-              //peer is in Hall
+              // Peer is in Hall
               this.send("askchallenge", { target: s.sid });
-            //peer is in Game
+            // Peer is in Game
             else this.send("askgame", { target: s.sid, page: page });
           });
           break;
@@ -430,24 +508,19 @@ export default {
         case "connect":
         case "gconnect": {
           const page = data.page || "/";
-          // NOTE: player could have been polled earlier, but might have logged in then
-          // So it's a good idea to ask identity if he was anonymous.
-          // But only ask game / challenge if currently disconnected.
+          // Only ask game / challenge if first connexion:
           if (!this.people[data.from]) {
-            this.$set(this.people, data.from, {
-              name: "",
-              id: 0,
-              pages: [page]
-            });
+            this.people[data.from] = { pages: [{ path: page, focus: true }] };
             if (data.code == "connect")
               this.send("askchallenge", { target: data.from });
             else this.send("askgame", { target: data.from, page: page });
           } else {
-            // append page if not already in list
-            if (this.people[data.from].pages.indexOf(page) < 0)
-              this.people[data.from].pages.push(page);
+            // Append page if not already in list
+            if (!(this.people[data.from].pages.find(p => p.path == page)))
+              this.people[data.from].pages.push({ path: page, focus: true });
           }
-          if (this.people[data.from].id == 0) {
+          if (!this.people[data.from].name && this.people[data.from].id !== 0) {
+            // Identity not known yet
             this.newConnect[data.from] = true; //for self multi-connects tests
             this.send("askidentity", { target: data.from, page: page });
           }
@@ -462,7 +535,10 @@ export default {
           // Disconnect means no more tmpIds:
           if (data.code == "disconnect") {
             // Remove the live challenge sent by this player:
-            ArrayFun.remove(this.challenges, c => c.from.sid == data.from);
+            ArrayFun.remove(
+              this.challenges,
+              c => c.type == "live" && c.from.sid == data.from
+            );
           } else {
             // Remove the matching live game if now unreachable
             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
@@ -479,17 +555,28 @@ export default {
             }
           }
           const page = data.page || "/";
-          ArrayFun.remove(this.people[data.from].pages, p => p == page);
+          ArrayFun.remove(this.people[data.from].pages, p => p.path == page);
           if (this.people[data.from].pages.length == 0)
             this.$delete(this.people, data.from);
           break;
         }
+        case "getfocus":
+          // If user reload a page, focus may arrive earlier than connect
+          if (!!this.people[data.from]) {
+            this.people[data.from].pages
+              .find(p => p.path == data.page).focus = true;
+            this.$forceUpdate(); //TODO: shouldn't be required
+          }
+          break;
+        case "losefocus":
+          if (!!this.people[data.from]) {
+            this.people[data.from].pages
+              .find(p => p.path == data.page).focus = false;
+            this.$forceUpdate(); //TODO: shouldn't be required
+          }
+          break;
         case "killed":
           // I logged in elsewhere:
-          // TODO: this fails. See https://github.com/websockets/ws/issues/489
-          //this.conn.removeEventListener("message", this.socketMessageListener);
-          //this.conn.removeEventListener("close", this.socketCloseListener);
-          //this.conn.close();
           this.conn = null;
           alert(this.st.tr["New connexion detected: tab now offline"]);
           break;
@@ -506,29 +593,26 @@ export default {
         }
         case "identity": {
           const user = data.data;
-          if (user.name) {
-            // If I multi-connect, kill current connexion if no mark (I'm older)
+          let player = this.people[user.sid];
+          // player.pages is already set
+          player.id = user.id;
+          player.name = user.name;
+          // TODO: this.$set(people, ...) fails. So forceUpdate.
+          //       But this shouldn't be like that!
+          this.$forceUpdate();
+          // If I multi-connect, kill current connexion if no mark (I'm older)
+          if (this.newConnect[user.sid]) {
             if (
-              this.newConnect[user.sid] &&
               user.id > 0 &&
               user.id == this.st.user.id &&
-              user.sid != this.st.user.sid
+              user.sid != this.st.user.sid &&
+              !this.killed[this.st.user.sid]
             ) {
-              if (!this.killed[this.st.user.sid]) {
                 this.send("killme", { sid: this.st.user.sid });
                 this.killed[this.st.user.sid] = true;
-              }
-            }
-            if (user.sid != this.st.user.sid) {
-              //I already know my identity...
-              this.$set(this.people, user.sid, {
-                id: user.id,
-                name: user.name,
-                pages: this.people[user.sid].pages
-              });
             }
+            delete this.newConnect[user.sid];
           }
-          delete this.newConnect[user.sid];
           break;
         }
         case "askchallenge": {
@@ -545,6 +629,7 @@ export default {
               id: c.id,
               from: this.st.user.sid,
               to: c.to,
+              randomness: c.randomness,
               fen: c.fen,
               vid: c.vid,
               cadence: c.cadence,
@@ -565,6 +650,7 @@ export default {
           ) {
             let newChall = Object.assign({}, chall);
             newChall.type = this.classifyObject(chall);
+            newChall.randomness = chall.randomness;
             newChall.added = Date.now();
             let fromValues = Object.assign({}, this.people[chall.from]);
             delete fromValues["pages"]; //irrelevant in this context
@@ -596,10 +682,10 @@ export default {
         }
         case "game": //individual request
         case "newgame": {
-          // NOTE: it may be live or correspondance
           const game = data.data;
-          // Ignore games where I play (corr games)
-          if (game.players.every(p => p.id != this.st.user.id))
+          // Ignore games where I play (will go in MyGames page)
+          if (game.players.every(p =>
+            p.sid != this.st.user.sid || p.uid != this.st.user.id))
           {
             let locGame = this.games.find(g => g.id == game.id);
             if (!locGame) {
@@ -629,11 +715,11 @@ export default {
         }
         case "result": {
           let g = this.games.find(g => g.id == data.gid);
-          if (g) g.score = data.score;
+          if (!!g) g.score = data.score;
           break;
         }
         case "startgame": {
-          // New game just started: data contain all information
+          // New game just started, I'm involved
           const gameInfo = data.data;
           if (this.classifyObject(gameInfo) == "live")
             this.startNewGame(gameInfo);
@@ -646,8 +732,7 @@ export default {
               "#/game/" +
               gameInfo.id +
               "</a>";
-            let modalBox = document.getElementById("modalInfo");
-            modalBox.checked = true;
+            document.getElementById("modalInfo").checked = true;
           }
           break;
         }
@@ -670,7 +755,7 @@ export default {
       const vModule = await import("@/variants/" + vname + ".js");
       this.newchallenge.V = vModule.VariantRules;
       this.newchallenge.vname = vname;
-      if (cb)
+      if (!!cb)
         cb();
     },
     trySetNewchallDiag: function() {
@@ -682,18 +767,18 @@ export default {
       window.V = this.newchallenge.V;
       if (
         this.newchallenge.vid > 0 &&
-        this.newchallenge.fen &&
+        !!this.newchallenge.fen &&
         V.IsGoodFen(this.newchallenge.fen)
       ) {
         const parsedFen = V.ParseFen(this.newchallenge.fen);
         this.newchallenge.diag = getDiagram({
           position: parsedFen.position,
-          orientation: V.GetOppCol(parsedFen.turn)
+          orientation: parsedFen.turn
         });
       }
     },
     newChallenge: async function() {
-      if (this.newchallenge.cadence.match(/^[0-9]+$/))
+      if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
         this.newchallenge.cadence += "+0"; //assume minutes, no increment
       const ctype = this.classifyObject(this.newchallenge);
       // TODO: cadence still unchecked so ctype could be wrong...
@@ -702,7 +787,7 @@ export default {
         error = this.st.tr["Please select a variant"];
       else if (ctype == "corr" && this.st.user.id <= 0)
         error = this.st.tr["Please log in to play correspondance games"];
-      else if (this.newchallenge.to) {
+      else if (!!this.newchallenge.to) {
         if (this.newchallenge.to == this.st.user.name)
           error = this.st.tr["Self-challenge is forbidden"];
         else if (
@@ -723,6 +808,8 @@ export default {
       }
       // NOTE: "from" information is not required here
       let chall = Object.assign({}, this.newchallenge);
+      delete chall["V"];
+      delete chall["diag"];
       const finishAddChallenge = cid => {
         chall.id = cid || "c" + getRandString();
         // Remove old challenge if any (only one at a time of a given type):
@@ -735,7 +822,11 @@ export default {
           // Delete current challenge (will be replaced now)
           this.send("deletechallenge", { data: this.challenges[cIdx].id });
           if (ctype == "corr") {
-            ajax("/challenges", "DELETE", { id: this.challenges[cIdx].id });
+            ajax(
+              "/challenges",
+              "DELETE",
+              { data: { id: this.challenges[cIdx].id } }
+            );
           }
           this.challenges.splice(cIdx, 1);
         }
@@ -757,6 +848,7 @@ export default {
         // Remember cadence  + vid for quicker further challenges:
         localStorage.setItem("cadence", chall.cadence);
         localStorage.setItem("vid", chall.vid);
+        localStorage.setItem("randomness", chall.randomness);
         document.getElementById("modalNewgame").checked = false;
         // Show the challenge if not on current display
         if (
@@ -771,9 +863,16 @@ export default {
         finishAddChallenge(null);
       } else {
         // Correspondance game: send challenge to server
-        ajax("/challenges", "POST", { chall: chall }, response => {
-          finishAddChallenge(response.cid);
-        });
+        ajax(
+          "/challenges",
+          "POST",
+          {
+            data: { chall: chall },
+            success: (response) => {
+              finishAddChallenge(response.cid);
+            }
+          }
+        );
       }
     },
     // Callback function after a diagram was showed to accept
@@ -793,7 +892,16 @@ export default {
         };
         this.launchGame(c);
       } else {
-        this.send("refusechallenge", { data: c.id, target: c.from.sid });
+        const oppsid = this.getOppsid(c);
+        if (!!oppsid)
+          this.send("refusechallenge", { data: c.id, target: oppsid });
+        if (c.type == "corr") {
+          ajax(
+            "/challenges",
+            "DELETE",
+            { data: { id: c.id } }
+          );
+        }
       }
       this.send("deletechallenge", { data: c.id });
     },
@@ -809,31 +917,29 @@ export default {
         c.accepted = true;
         const vModule = await import("@/variants/" + c.vname + ".js");
         window.V = vModule.VariantRules;
-        if (c.to) {
+        if (!!c.to) {
           // c.to == this.st.user.name (connected)
-          if (c.fen) {
+          if (!!c.fen) {
             const parsedFen = V.ParseFen(c.fen);
             c.mycolor = V.GetOppCol(parsedFen.turn);
             this.tchallDiag = getDiagram({
               position: parsedFen.position,
               orientation: c.mycolor
             });
-            this.curChallToAccept = c;
-            document.getElementById("modalAccept").checked = true;
-          }
-          else {
-            if (!confirm(this.st.tr["Accept challenge?"]))
-              c.accepted = false;
-            this.finishProcessingChallenge(c);
           }
+          this.curChallToAccept = c;
+          document.getElementById("modalAccept").checked = true;
         }
-        else
-          this.finishProcessingChallenge(c);
+        else this.finishProcessingChallenge(c);
       }
       else {
         // My challenge
         if (c.type == "corr") {
-          ajax("/challenges", "DELETE", { id: c.id });
+          ajax(
+            "/challenges",
+            "DELETE",
+            { data: { id: c.id } }
+          );
         }
         this.send("deletechallenge", { data: c.id });
       }
@@ -842,10 +948,20 @@ export default {
     },
     // NOTE: when launching game, the challenge is already being deleted
     launchGame: function(c) {
+      let players =
+        !!c.mycolor
+          ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
+          : shuffle([c.from, c.seat]);
+      // Convention for players IDs in stored games is 'uid'
+      players.forEach(p => {
+        let pWithUid = p;
+        pWithUid["uid"] = p.id;
+        delete pWithUid["id"];
+      });
       // These game informations will be shared
       let gameInfo = {
         id: getRandString(),
-        fen: c.fen || V.GenRandInitFen(),
+        fen: c.fen || V.GenRandInitFen(c.randomness),
         // White player index 0, black player index 1:
         players: c.mycolor
           ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
@@ -853,57 +969,67 @@ export default {
         vid: c.vid,
         cadence: c.cadence
       };
-      let oppsid = c.from.sid; //may not be defined if corr + offline opp
-      if (!oppsid) {
-        oppsid = Object.keys(this.people).find(
-          sid => this.people[sid].id == c.from.id
-        );
-      }
       const notifyNewgame = () => {
-        if (oppsid)
-          //opponent is online
+        const oppsid = this.getOppsid(c);
+        if (!!oppsid)
+          // Opponent is online
           this.send("startgame", { data: gameInfo, target: oppsid });
-        // Send game info (only if live) to everyone except me in this tab
-        this.send("newgame", { data: gameInfo });
+        // Send game info (only if live) to everyone except me and opponent
+        // TODO: this double message send could be avoided.
+        this.send("newgame", { data: gameInfo, oppsid: oppsid });
       };
       if (c.type == "live") {
         notifyNewgame();
         this.startNewGame(gameInfo);
-      } //corr: game only on server
-      else {
+      } else {
+        // corr: game only on server
         ajax(
           "/games",
           "POST",
-          { gameInfo: gameInfo, cid: c.id }, //cid useful to delete challenge
-          response => {
-            gameInfo.id = response.gameId;
-            notifyNewgame();
-            this.$router.push("/game/" + response.gameId);
+          {
+            // cid is useful to delete the challenge:
+            data: { gameInfo: gameInfo, cid: c.id },
+            success: (response) => {
+              gameInfo.id = response.gameId;
+              notifyNewgame();
+              this.$router.push("/game/" + response.gameId);
+            }
           }
         );
       }
     },
     // NOTE: for live games only (corr games start on the server)
     startNewGame: function(gameInfo) {
-      const game = Object.assign({}, gameInfo, {
-        // (other) Game infos: constant
-        fenStart: gameInfo.fen,
-        vname: this.getVname(gameInfo.vid),
-        created: Date.now(),
-        // Game state (including FEN): will be updated
-        moves: [],
-        clocks: [-1, -1], //-1 = unstarted
-        initime: [0, 0], //initialized later
-        score: "*"
-      });
-      GameStorage.add(game, (err) => {
-        // If an error occurred, game is not added: abort
-        if (!err) {
-          if (this.st.settings.sound)
-            new Audio("/sounds/newgame.wav").play().catch(() => {});
-          this.$router.push("/game/" + gameInfo.id);
+      const game = Object.assign(
+        {},
+        gameInfo,
+        {
+          // (other) Game infos: constant
+          fenStart: gameInfo.fen,
+          vname: this.getVname(gameInfo.vid),
+          created: Date.now(),
+          // Game state (including FEN): will be updated
+          moves: [],
+          clocks: [-1, -1], //-1 = unstarted
+          initime: [0, 0], //initialized later
+          score: "*"
         }
-      });
+      );
+      setTimeout(
+        () => {
+          GameStorage.add(game, (err) => {
+            // If an error occurred, game is not added: a tab already
+            // added the game and (if focused) is redirected toward it.
+            // If no error and the tab is hidden: do not show anything.
+            if (!err && !document.hidden) {
+              if (this.st.settings.sound)
+                new Audio("/sounds/newgame.flac").play().catch(() => {});
+              this.$router.push("/game/" + gameInfo.id);
+            }
+          });
+        },
+        document.hidden ? 500 + 1000 * Math.random() : 0
+      );
     }
   }
 };
@@ -976,7 +1102,10 @@ button.refuseBtn
   background-color: red
 
 #buttonsTchall
-  margin-top: 10px
+  // margin-top set dynamically (depends if diagram showed or not)
+  & > button > span
+    width: 100%
+    text-align: center
 
 .variantName
   font-weight: bold
@@ -984,6 +1113,8 @@ button.refuseBtn
 .diagram
   margin: 0 auto
   max-width: 400px
+  // width: 100% required for Firefox
+  width: 100%
 
 #inputFen
   width: 100%