X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fviews%2FHall.vue;h=37558a9378221dbb06752bc9bc0006c327a08466;hb=f14572c4a22425033735253eabbaa2d8dbb53d05;hp=009a1abe91f913adb11a4a1687a773bf98ef1696;hpb=5b4de147a4e2f737c660f3e82f46664a9635477f;p=vchess.git

diff --git a/client/src/views/Hall.vue b/client/src/views/Hall.vue
index 009a1abe..37558a93 100644
--- a/client/src/views/Hall.vue
+++ b/client/src/views/Hall.vue
@@ -15,8 +15,11 @@ main
         span.variantName {{ curChallToAccept.vname }} 
         span {{ curChallToAccept.cadence }} 
         span {{ st.tr["with"] + " " + curChallToAccept.from.name }}
-      .diagram(v-html="tchallDiag")
-      .button-group#buttonsTchall
+      .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)")
@@ -31,7 +34,7 @@ main
   )
     .card
       label#closeNewgame.modal-close(for="modalNewgame")
-      div(@keyup.enter="newChallenge()")
+      div(@keyup.enter="issueNewChallenge()")
         fieldset
           label(for="selectVariant") {{ st.tr["Variant"] }} *
           select#selectVariant(
@@ -62,8 +65,21 @@ main
             option(value="0") {{ st.tr["Deterministic"] }}
             option(value="1") {{ st.tr["Symmetric random"] }}
             option(value="2") {{ st.tr["Asymmetric random"] }}
+        fieldset
+          label(for="memorizeChall") {{ st.tr["Memorize"] }}
+          input#memorizeChall(
+            type="checkbox"
+            v-model="newchallenge.memorize"
+          )
         fieldset(v-if="st.user.id > 0")
-          label(for="selectPlayers") {{ st.tr["Play with?"] }}
+          label(for="selectPlayers") {{ st.tr["Play with"] }}
+          select#selectPlayersInList(v-model="newchallenge.to")
+            option(value="")
+            option(
+              v-for="p in Object.values(people)"
+              :value="p.name"
+            )
+              | {{ p.name }}
           input#selectPlayers(
             type="text"
             v-model="newchallenge.to"
@@ -76,7 +92,7 @@ main
             v-model="newchallenge.fen"
           )
         .diagram(v-html="newchallenge.diag")
-      button(@click="newChallenge()") {{ st.tr["Send challenge"] }}
+      button(@click="issueNewChallenge()") {{ st.tr["Send challenge"] }}
   input#modalPeople.modal(
     type="checkbox"
     @click="resetSocialColor()"
@@ -100,7 +116,7 @@ main
             )
               | {{ st.tr["Observe"] }}
             button.player-action(
-              v-else-if="st.user.id > 0 && sid != st.user.sid"
+              v-else-if="isFocusedOnHall(sid)"
               @click="challenge(sid)"
             )
               | {{ st.tr["Challenge"] }}
@@ -117,8 +133,28 @@ 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(v-if="presetChalls.length > 0")
+    .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
+      h4.text-center {{ st.tr["Preset challenges"] }}
+      table
+        thead
+          tr
+            th {{ st.tr["Variant"] }}
+            th {{ st.tr["Cadence"] }}
+            th {{ st.tr["Random?"] }}
+            th
+        tbody
+          tr(
+            v-for="pc in presetChalls"
+            @click="newChallFromPreset(pc)"
+          )
+            td {{ pc.vname }}
+            td {{ pc.cadence }}
+            td(:class="getRandomnessClass(pc)")
+            td.remove-preset(@click="removePresetChall($event, pc)")
+              img(src="/images/icons/delete.svg")
   .row
     .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
       div#div2
@@ -149,12 +185,17 @@ main
           :showBoth="true"
           @show-game="showGame"
         )
-        GameList(
-          v-show="gdisplay=='corr'"
-          :games="filterGames('corr')"
-          :showBoth="true"
-          @show-game="showGame"
-        )
+        div(v-show="gdisplay=='corr'")
+          GameList(
+            :games="filterGames('corr')"
+            :showBoth="true"
+            @show-game="showGame"
+          )
+          button#loadMoreBtn(
+            v-if="hasMore"
+            @click="loadMore()"
+          )
+            | {{ st.tr["Load more"] }}
 </template>
 
 <script>
@@ -182,6 +223,10 @@ export default {
       st: store.state,
       cdisplay: "live", //or corr
       gdisplay: "live",
+      // timestamp of last showed (oldest) corr game:
+      cursor: Number.MAX_SAFE_INTEGER,
+      // hasMore == TRUE: a priori there could be more games to load
+      hasMore: true,
       games: [],
       challenges: [],
       people: {},
@@ -191,15 +236,17 @@ 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,
+        randomness: parseInt(localStorage.getItem("challRandomness")) || 2,
         // VariantRules object, stored to not interfere with
         // diagrams of targetted challenges:
         V: null,
         vname: "",
-        diag: "" //visualizing FEN
+        diag: "", //visualizing FEN
+        memorize: false //put settings in localStorage
       },
       tchallDiag: "",
       curChallToAccept: {from: {}},
+      presetChalls: JSON.parse(localStorage.getItem("presetChalls") || "[]"),
       newChat: "",
       conn: null,
       connexionString: "",
@@ -233,66 +280,15 @@ export default {
     if (this.st.variants.length > 0 && this.newchallenge.vid > 0)
       this.loadNewchallVariant();
     const my = this.st.user;
-    this.$set(this.people, my.sid, { id: my.id, name: my.name, pages: ["/"] });
-    // Ask server for current corr games (all but mines)
-    ajax(
-      "/games",
-      "GET",
-      { uid: this.st.user.id, excluded: true },
-      response => {
-        this.games = this.games.concat(
-          response.games.map(g => {
-            const type = this.classifyObject(g);
-            const vname = this.getVname(g.vid);
-            return Object.assign({}, g, { type: type, vname: vname });
-          })
-        );
+    this.$set(
+      this.people,
+      my.sid,
+      {
+        id: my.id,
+        name: my.name,
+        pages: [{ path: "/", focus: true }]
       }
     );
-    // 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(
-              {},
-              {
-                type: type,
-                vname: vname,
-                from: from,
-                to: c.target ? names[c.target] : ""
-              },
-              c
-            );
-          })
-        );
-      };
-      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();
-    });
     const connectAndPoll = () => {
       this.send("connect");
       this.send("pollclientsandgamers");
@@ -302,6 +298,8 @@ export default {
       params.socketUrl +
       "/?sid=" +
       this.st.user.sid +
+      "&id=" +
+      this.st.user.id +
       "&tmpId=" +
       getRandString() +
       "&page=" +
@@ -313,9 +311,10 @@ 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);
+      document.getElementById(eltName)
+        .addEventListener("click", processModalClick);
     });
     document.querySelectorAll("#predefinedCadences > button").forEach(b => {
       b.addEventListener("click", () => {
@@ -327,14 +326,164 @@ export default {
       dispCorr || localStorage.getItem("type-challenges") || "live";
     const showGtype =
       dispCorr || localStorage.getItem("type-games") || "live";
-    this.setDisplay("c", showCtype);
-    this.setDisplay("g", showGtype);
+    this.setDisplay('c', showCtype);
+    this.setDisplay('g', showGtype);
+    // Ask server for current corr games (all but mines)
+    ajax(
+      "/observedgames",
+      "GET",
+      {
+        data: {
+          uid: this.st.user.id,
+          cursor: this.cursor
+        },
+        success: (response) => {
+          const L = response.games.length;
+          if (L > 0) {
+            this.cursor = response.games[L - 1].created;
+            if (this.games.length == 0 && this.gdisplay == "live") {
+              document
+                .getElementById("btnGcorr")
+                .classList.add("somethingnew");
+            }
+          }
+          this.games = this.games.concat(
+            response.games.map(g => {
+              const vname = this.getVname(g.vid);
+              return Object.assign(
+                {},
+                g,
+                {
+                  type: "corr",
+                  vname: vname
+                }
+              );
+            })
+          );
+        }
+      }
+    );
+    // Also ask for corr challenges (open + sent by/to me)
+    ajax(
+      "/challenges",
+      "GET",
+      {
+        data: { uid: this.st.user.id },
+        success: (response) => {
+          if (
+            response.challenges.length > 0 &&
+            this.challenges.length == 0 &&
+            this.cdisplay == "live"
+          ) {
+            document
+              .getElementById("btnCcorr")
+              .classList.add("somethingnew");
+          }
+          // 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",
+              {
+                data: { ids: Object.keys(names).join(",") },
+                success: (response2) => {
+                  response2.users.forEach(u => {
+                    names[u.id] = u.name;
+                  });
+                  addChallenges();
+                }
+              }
+            );
+          } else addChallenges();
+        }
+      }
+    );
   },
   beforeDestroy: function() {
+    document.removeEventListener('visibilitychange', this.visibilityChange);
     this.send("disconnect");
   },
   methods: {
-    // Helpers:
+    getRandomnessClass: function(pc) {
+      return {
+        ["random-" + pc.randomness]: true
+      };
+    },
+    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 = "";
+      this.newchallenge.memorize = false;
+    },
+    showNewchallengeForm: function() {
+      this.partialResetNewchallenge();
+      window.doClick("modalNewgame");
+    },
+    addPresetChall: function(chall) {
+      // Add only if not already existing:
+      if (this.presetChalls.some(c =>
+        c.vid == chall.vid &&
+        c.cadence == chall.cadence &&
+        c.randomness == chall.randomness
+      )) {
+        return;
+      }
+      const L = this.presetChalls.length;
+      this.presetChalls.push({
+        index: L,
+        vid: chall.vid,
+        vname: chall.vname, //redundant, but easier
+        cadence: chall.cadence,
+        randomness: chall.randomness
+      });
+      localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
+    },
+    removePresetChall: function(e, pchall) {
+      e.stopPropagation();
+      const pchallIdx = this.presetChalls.findIndex(pc => pc.index == pchall.index);
+      this.presetChalls.splice(pchallIdx, 1);
+      localStorage.setItem("presetChalls", JSON.stringify(this.presetChalls));
+    },
+    tchallButtonsMargin: function() {
+      if (!!this.curChallToAccept.fen) return { "margin-top": "10px" };
+      return {};
+    },
     cadenceFocusIfOpened: function() {
       if (event.target.checked)
         document.getElementById("cadence").focus();
@@ -356,7 +505,7 @@ export default {
       return this.games.filter(g => g.type == type);
     },
     classifyObject: function(o) {
-      //challenge or game
+      // o: challenge or game
       return o.cadence.indexOf("d") === -1 ? "live" : "corr";
     },
     setDisplay: function(letter, type, e) {
@@ -375,11 +524,22 @@ export default {
       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);
+    },
+    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)
+      );
     },
     challenge: function(sid) {
-      // Available, in Hall (only)
+      this.partialResetNewchallenge();
+      // Available, in Hall
       this.newchallenge.to = this.people[sid].name;
+      // TODO: also store target sid to not re-search for it
       document.getElementById("modalPeople").checked = false;
       window.doClick("modalNewgame");
     },
@@ -387,8 +547,10 @@ export default {
       // 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]+$/);
-        if (!!matchGid) gids.push(matchGid[0]);
+        if (p.focus) {
+          const matchGid = p.path.match(/[a-zA-Z0-9]+$/);
+          if (!!matchGid) gids.push(matchGid[0]);
+        }
       });
       const gid = gids[Math.floor(Math.random() * gids.length)];
       const game = this.games.find(g => g.id == gid);
@@ -434,34 +596,36 @@ export default {
               this.send("askidentity", { target: s.sid, page: page });
               identityAsked[s.sid] = true;
             }
-            if (!this.people[s.sid])
+            if (!this.people[s.sid]) {
               // Do not set name or id: identity unknown yet
-              this.$set(this.people, s.sid, { pages: [page] });
-            else if (this.people[s.sid].pages.indexOf(page) < 0)
-              this.people[s.sid].pages.push(page);
+              this.people[s.sid] = { pages: [{path: page, focus: true}] };
+            }
+            else if (!(this.people[s.sid].pages.find(p => p.path == page)))
+              this.people[s.sid].pages.push({ path: page, focus: true });
             if (!s.page)
               // Peer is in Hall
-              this.send("askchallenge", { target: s.sid });
-            // Peer is in Game
-            else this.send("askgame", { target: s.sid, page: page });
+              this.send("askchallenges", { target: s.sid });
+            // Peer is in Game: ask only if live game
+            else if (!page.match(/\/[0-9]+$/))
+              this.send("askgame", { target: s.sid, page: page });
           });
           break;
         }
         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 / challenges if first connexion:
           if (!this.people[data.from]) {
-            this.$set(this.people, data.from, { pages: [page] });
+            this.people[data.from] = { pages: [{ path: page, focus: true }] };
             if (data.code == "connect")
-              this.send("askchallenge", { target: data.from });
-            else this.send("askgame", { target: data.from, page: page });
+              this.send("askchallenges", { target: data.from });
+            // Ask game only if live:
+            else if (!page.match(/\/[0-9]+$/))
+              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);
+            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].name && this.people[data.from].id !== 0) {
             // Identity not known yet
@@ -478,39 +642,54 @@ export default {
           if (!this.people[data.from]) return;
           // Disconnect means no more tmpIds:
           if (data.code == "disconnect") {
-            // Remove the live challenge sent by this player:
+            // Remove the live challenges sent by this player:
             ArrayFun.remove(
               this.challenges,
-              c => c.type == "live" && c.from.sid == data.from
+              c => c.type == "live" && c.from.sid == data.from,
+              "all"
             );
           } else {
             // Remove the matching live game if now unreachable
             const gid = data.page.match(/[a-zA-Z0-9]+$/)[0];
-            const gidx = this.games.findIndex(g => g.id == gid);
-            if (gidx >= 0) {
-              const game = this.games[gidx];
-              if (
-                game.type == "live" &&
-                game.rids.length == 1 &&
-                game.rids[0] == data.from
-              ) {
-                this.games.splice(gidx, 1);
+            // Corr games are always reachable:
+            if (!gid.match(/^[0-9]+$/)) {
+              const gidx = this.games.findIndex(g => g.id == gid);
+              // NOTE: gidx should always be >= 0 (TODO?)
+              if (gidx >= 0) {
+                const game = this.games[gidx];
+                ArrayFun.remove(game.rids, rid => rid == data.from);
+                if (game.rids.length == 0) this.games.splice(gidx, 1);
               }
             }
           }
           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.$forceUpdate(); //TODO: shouldn't be required
+          }
+          break;
         case "killed":
           // I logged in elsewhere:
           this.conn = null;
           alert(this.st.tr["New connexion detected: tab now offline"]);
           break;
         case "askidentity": {
-          // Request for identification (TODO: anonymous shouldn't need to reply)
+          // Request for identification
           const me = {
             // Decompose to avoid revealing email
             name: this.st.user.name,
@@ -522,11 +701,13 @@ export default {
         }
         case "identity": {
           const user = data.data;
-          this.$set(this.people, user.sid, {
-            id: user.id,
-            name: user.name,
-            pages: this.people[user.sid].pages
-          });
+          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 (
@@ -542,78 +723,64 @@ export default {
           }
           break;
         }
-        case "askchallenge": {
-          // Send my current live challenge (if any)
-          const cIdx = this.challenges.findIndex(
-            c => c.from.sid == this.st.user.sid && c.type == "live"
-          );
-          if (cIdx >= 0) {
-            const c = this.challenges[cIdx];
-            // NOTE: in principle, should only send targeted challenge to the target.
-            // But we may not know yet the identity of the target (just name),
-            // so cannot decide if data.from is the target or not.
-            const myChallenge = {
-              id: c.id,
-              from: this.st.user.sid,
-              to: c.to,
-              randomness: c.randomness,
-              fen: c.fen,
-              vid: c.vid,
-              cadence: c.cadence,
-              added: c.added
-            };
-            this.send("challenge", { data: myChallenge, target: data.from });
-          }
+        case "askchallenges": {
+          // Send my current live challenges (if any)
+          const myChallenges = this.challenges
+            .filter(c =>
+              c.from.sid == this.st.user.sid && c.type == "live"
+            )
+            .map(c => {
+              // NOTE: in principle, should only send targeted challenge to the target.
+              // But we may not know yet the identity of the target (just name),
+              // so cannot decide if data.from is the target or not.
+              return {
+                id: c.id,
+                from: this.st.user.sid,
+                to: c.to,
+                randomness: c.randomness,
+                fen: c.fen,
+                vid: c.vid,
+                cadence: c.cadence,
+                added: c.added
+              };
+            });
+          if (myChallenges.length > 0)
+            this.send("challenges", { data: myChallenges, target: data.from });
           break;
         }
-        case "challenge": //after "askchallenge"
-        case "newchallenge": {
-          // NOTE about next condition: see "askchallenge" case.
-          const chall = data.data;
-          if (
-            !chall.to ||
-            (this.people[chall.from].id > 0 &&
-              (chall.from == this.st.user.sid || chall.to == this.st.user.name))
-          ) {
-            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
-            newChall.from = Object.assign({ sid: chall.from }, fromValues);
-            newChall.vname = this.getVname(newChall.vid);
-            this.challenges.push(newChall);
-            if (
-              (newChall.type == "live" && this.cdisplay == "corr") ||
-              (newChall.type == "corr" && this.cdisplay == "live")
-            ) {
-              document
-                .getElementById("btnC" + newChall.type)
-                .classList.add("somethingnew");
-            }
-          }
+        case "challenges": //after "askchallenges"
+          data.data.forEach(this.addChallenge);
+          break;
+        case "newchallenge":
+          this.addChallenge(data.data);
           break;
-        }
         case "refusechallenge": {
           const cid = data.data;
           ArrayFun.remove(this.challenges, c => c.id == cid);
           alert(this.st.tr["Challenge declined"]);
           break;
         }
-        case "deletechallenge": {
-          // NOTE: the challenge may be already removed
-          const cid = data.data;
-          ArrayFun.remove(this.challenges, c => c.id == cid);
+        case "deletechallenge_s": {
+          // NOTE: the challenge(s) may be already removed
+          const cref = data.data;
+          if (!!cref.cid) ArrayFun.remove(this.challenges, c => c.id == cref.cid);
+          else if (!!cref.sids) {
+            cref.sids.forEach(s => {
+              ArrayFun.remove(
+                this.challenges,
+                c => c.type == "live" && c.from.sid == s,
+                "all"
+              );
+            });
+          }
           break;
         }
-        case "game": //individual request
+        case "game": // Individual request
         case "newgame": {
-          // NOTE: it may be live or correspondance
           const game = data.data;
-          // Ignore games where I play (corr games)
+          // Ignore games where I play (will go in MyGames page)
           if (game.players.every(p =>
-            p.sid != this.st.user.sid || p.id != this.st.user.id))
+            p.sid != this.st.user.sid && p.id != this.st.user.id))
           {
             let locGame = this.games.find(g => g.id == game.id);
             if (!locGame) {
@@ -621,7 +788,7 @@ export default {
               newGame.type = this.classifyObject(game);
               newGame.vname = this.getVname(game.vid);
               if (!game.score)
-                //if new game from Hall
+                // New game from Hall
                 newGame.score = "*";
               newGame.rids = [game.rid];
               delete newGame["rid"];
@@ -647,7 +814,7 @@ export default {
           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);
@@ -660,8 +827,7 @@ export default {
               "#/game/" +
               gameInfo.id +
               "</a>";
-            let modalBox = document.getElementById("modalInfo");
-            modalBox.checked = true;
+            document.getElementById("modalInfo").checked = true;
           }
           break;
         }
@@ -678,14 +844,69 @@ export default {
       this.conn.addEventListener("message", this.socketMessageListener);
       this.conn.addEventListener("close", this.socketCloseListener);
     },
+    loadMore: function() {
+      ajax(
+        "/observedgames",
+        "GET",
+        {
+          data: {
+            uid: this.st.user.id,
+            cursor: this.cursor
+          },
+          success: (res) => {
+            if (res.games.length > 0) {
+              const L = res.games.length;
+              this.cursor = res.games[L - 1].created;
+              let moreGames = res.games.map(g => {
+                const vname = this.getVname(g.vid);
+                return Object.assign(
+                  {},
+                  g,
+                  {
+                    type: "corr",
+                    vname: vname
+                  }
+                );
+              });
+              this.games = this.games.concat(moreGames);
+            } else this.hasMore = false;
+          }
+        }
+      );
+    },
     // Challenge lifecycle:
+    addChallenge: function(chall) {
+      // NOTE about next condition: see "askchallenges" case.
+      if (
+        !chall.to ||
+        (this.people[chall.from].id > 0 &&
+          (chall.from == this.st.user.sid || chall.to == this.st.user.name))
+      ) {
+        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
+        newChall.from = Object.assign({ sid: chall.from }, fromValues);
+        newChall.vname = this.getVname(newChall.vid);
+        this.challenges.push(newChall);
+        if (
+          (newChall.type == "live" && this.cdisplay == "corr") ||
+          (newChall.type == "corr" && this.cdisplay == "live")
+        ) {
+          document
+            .getElementById("btnC" + newChall.type)
+            .classList.add("somethingnew");
+        }
+      }
+    },
     loadNewchallVariant: async function(cb) {
       const vname = this.getVname(this.newchallenge.vid);
       const vModule = await import("@/variants/" + vname + ".js");
       this.newchallenge.V = vModule.VariantRules;
       this.newchallenge.vname = vname;
-      if (!!cb)
-        cb();
+      if (!!cb) cb();
     },
     trySetNewchallDiag: function() {
       if (!this.newchallenge.fen) {
@@ -706,7 +927,14 @@ export default {
         });
       }
     },
-    newChallenge: async function() {
+    newChallFromPreset(pchall) {
+      this.partialResetNewchallenge();
+      this.newchallenge.vid = pchall.vid;
+      this.newchallenge.cadence = pchall.cadence;
+      this.newchallenge.randomness = pchall.randomness;
+      this.loadNewchallVariant(this.issueNewChallenge);
+    },
+    issueNewChallenge: async function() {
       if (!!(this.newchallenge.cadence.match(/^[0-9]+$/)))
         this.newchallenge.cadence += "+0"; //assume minutes, no increment
       const ctype = this.classifyObject(this.newchallenge);
@@ -722,8 +950,9 @@ export default {
         else if (
           ctype == "live" &&
           Object.values(this.people).every(p => p.name != this.newchallenge.to)
-        )
+        ) {
           error = this.newchallenge.to + " " + this.st.tr["is not online"];
+        }
       }
       if (error) {
         alert(error);
@@ -737,30 +966,58 @@ export default {
       }
       // NOTE: "from" information is not required here
       let chall = Object.assign({}, this.newchallenge);
+      // Add only if not already issued (not counting target or FEN):
+      if (this.challenges.some(c =>
+        (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
+        c.vid == chall.vid &&
+        c.cadence == chall.cadence &&
+        c.randomness == chall.randomness
+      )) {
+        alert(this.st.tr["Challenge already exists"]);
+        return;
+      }
+      if (this.newchallenge.memorize) this.addPresetChall(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):
-        const cIdx = this.challenges.findIndex(
-          c =>
-            (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id) &&
-            c.type == ctype
-        );
-        if (cIdx >= 0) {
-          // Delete current challenge (will be replaced now)
-          this.send("deletechallenge", { data: this.challenges[cIdx].id });
+        const MAX_ALLOWED_CHALLS = 3;
+        // Remove oldest challenge if 3 found: only 3 at a time of a given type
+        let countMyChalls = 0;
+        let challToDelIdx = 0;
+        let oldestAdded = Number.MAX_SAFE_INTEGER;
+        for (let i=0; i<this.challenges.length; i++) {
+          const c = this.challenges[i];
+          if (
+            c.type == ctype &&
+            (c.from.sid == this.st.user.sid || c.from.id == this.st.user.id)
+          ) {
+            countMyChalls++;
+            if (c.added < oldestAdded) {
+              challToDelIdx = i;
+              oldestAdded = c.added;
+            }
+          }
+        }
+        if (countMyChalls >= MAX_ALLOWED_CHALLS) {
+          this.send(
+            "deletechallenge_s",
+            { data: { cid: this.challenges[challToDelIdx].id } }
+          );
           if (ctype == "corr") {
-            ajax("/challenges", "DELETE", { id: this.challenges[cIdx].id });
+            ajax(
+              "/challenges",
+              "DELETE",
+              { data: { id: this.challenges[challToDelIdx].id } }
+            );
           }
-          this.challenges.splice(cIdx, 1);
+          this.challenges.splice(challToDelIdx, 1);
         }
         this.send("newchallenge", {
           data: Object.assign({ from: this.st.user.sid }, chall)
         });
         // Add new challenge:
         chall.from = {
-          // Decompose to avoid revealing email
           sid: this.st.user.sid,
           id: this.st.user.id,
           name: this.st.user.name
@@ -773,7 +1030,7 @@ export default {
         // Remember cadence  + vid for quicker further challenges:
         localStorage.setItem("cadence", chall.cadence);
         localStorage.setItem("vid", chall.vid);
-        localStorage.setItem("randomness", chall.randomness);
+        localStorage.setItem("challRandomness", chall.randomness);
         document.getElementById("modalNewgame").checked = false;
         // Show the challenge if not on current display
         if (
@@ -788,9 +1045,16 @@ 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.id);
+            }
+          }
+        );
       }
     },
     // Callback function after a diagram was showed to accept
@@ -803,21 +1067,32 @@ export default {
     finishProcessingChallenge: function(c) {
       if (c.accepted) {
         c.seat = {
-          // Again, avoid c.seat = st.user to not reveal email
           sid: this.st.user.sid,
           id: this.st.user.id,
           name: this.st.user.name
         };
         this.launchGame(c);
+        if (c.type == "live")
+          // Remove all live challenges of both players
+          this.send("deletechallenge_s", { data: { sids: [c.from.sid, c.seat.sid] } });
+        else
+          // Corr challenge: just remove the challenge
+          this.send("deletechallenge_s", { data: { cid: c.id } });
       } else {
         const oppsid = this.getOppsid(c);
         if (!!oppsid)
           this.send("refusechallenge", { data: c.id, target: oppsid });
-        if (c.type == "corr")
-          ajax("/challenges", "DELETE", { id: c.id });
+        if (c.type == "corr") {
+          ajax(
+            "/challenges",
+            "DELETE",
+            { data: { id: c.id } }
+          );
+        }
+        this.send("deletechallenge_s", { data: { cid: c.id } });
       }
-      this.send("deletechallenge", { data: c.id });
     },
+    // TODO: if several players click same challenge at the same time: problem
     clickChallenge: async function(c) {
       const myChallenge =
         c.from.sid == this.st.user.sid || //live
@@ -839,86 +1114,122 @@ export default {
               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 });
-        this.send("deletechallenge", { data: c.id });
+        if (c.type == "corr") {
+          ajax(
+            "/challenges",
+            "DELETE",
+            { data: { id: c.id } }
+          );
+        }
+        this.send("deletechallenge_s", { data: { cid: c.id } });
       }
       // In all cases, the challenge is consumed:
       ArrayFun.remove(this.challenges, ch => ch.id == c.id);
     },
     // NOTE: when launching game, the challenge is already being deleted
     launchGame: function(c) {
+      // White player index 0, black player index 1:
+      const players =
+        !!c.mycolor
+          ? (c.mycolor == "w" ? [c.seat, c.from] : [c.from, c.seat])
+          : shuffle([c.from, c.seat]);
       // These game informations will be shared
       let gameInfo = {
         id: getRandString(),
         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])
-          : shuffle([c.from, c.seat]),
+        randomness: c.randomness, //for rematch
+        players: players,
         vid: c.vid,
         cadence: c.cadence
       };
       const notifyNewgame = () => {
         const oppsid = this.getOppsid(c);
         if (!!oppsid)
-          //opponent is online
+          // 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 });
+        // If new corr game, notify Hall (except opponent and me)
+        if (c.type == "corr") {
+          this.send(
+            "newgame",
+            {
+              data: gameInfo,
+              excluded: [this.st.user.sid, oppsid]
+            }
+          );
+        }
+        // Notify MyGames page:
+        this.send(
+          "notifynewgame",
+          {
+            data: gameInfo,
+            targets: gameInfo.players
+          }
+        );
+        // NOTE: no need to send the game to the room, since I'll connect
+        // on game just after, the main Hall will be notified.
       };
       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.id;
+              notifyNewgame();
+              this.$router.push("/game/" + response.id);
+            }
           }
         );
       }
     },
     // NOTE: for live games only (corr games start on the server)
     startNewGame: function(gameInfo) {
-      const game = Object.assign({}, gameInfo, {
-        // (other) Game infos: constant
-        fenStart: gameInfo.fen,
-        vname: this.getVname(gameInfo.vid),
-        created: Date.now(),
-        // Game state (including FEN): will be updated
-        moves: [],
-        clocks: [-1, -1], //-1 = unstarted
-        initime: [0, 0], //initialized later
-        score: "*"
-      });
-      GameStorage.add(game, (err) => {
-        // If an error occurred, game is not added: abort
-        if (!err) {
-          if (this.st.settings.sound)
-            new Audio("/sounds/newgame.flac").play().catch(() => {});
-          this.$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. Maybe a focused one, maybe not.
+            // We know for sure that it emitted the gong start sound.
+            // ==> Do not play it again.
+            if (!err && this.st.settings.sound)
+              new Audio("/sounds/newgame.flac").play().catch(() => {});
+            this.$router.push("/game/" + gameInfo.id);
+          });
+        },
+        document.hidden ? 500 + 1000 * Math.random() : 0
+      );
     }
   }
 };
@@ -991,7 +1302,7 @@ 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
@@ -1013,4 +1324,26 @@ button.refuseBtn
 @media screen and (max-width: 767px)
   #div2, #div3
     margin-top: 0
+
+tr > td
+  &.random-0
+    background-color: #FF5733
+  &.random-1
+    background-color: #2B63B4
+  &.random-2
+    background-color: #33B42B
+
+@media screen and (max-width: 767px)
+  h4
+    margin: 5px 0
+
+button#loadMoreBtn
+  display: block
+  margin: 0 auto
+
+td.remove-preset
+  background-color: lightgrey
+  text-align: center
+  & > img
+    height: 1em
 </style>