public/javascripts/components/problems.js

   1 Vue.component('my-problems', {
   2     data: function () {
   3         return {
   4             problems: [], //oldest first
   5             curIdx: 0, //index in problems array
   6             stage: "nothing", //or "preview" after new problem is filled
   7             newProblem: {
   8                 fen: "",
   9                 instructions: "",
  10                 solution: "",
  11             },
  12         };
  13     },
  14     template: `
  15         <div class="col-sm-12 col-md-10 col-md-offset-1 col-lg-8 col-lg-offset-2">
  16             <div id="problemControls" class="button-group">
  17                 <button :aria-label='translate("Load previous problem")' class="tooltip"
  18                         @click="showPreviousProblem()">
  19                     <i class="material-icons">skip_previous</i>
  20                 </button>
  21                 <button :aria-label='translate("Add a problem")' class="tooltip"
  22                         @click="showNewproblemModal">
  23                     {{ translate("New") }}
  24                 </button>
  25                 <button :aria-label='translate("Load next problem")' class="tooltip"
  26                         @click="showNextProblem()">
  27                     <i class="material-icons">skip_next</i>
  28                 </button>
  29             </div>
  30
  31
  32
  33             if (this.mode == "problem")
  34             {
  35                 // Show problem instructions
  36                 elementArray.push(
  37                     h('div',
  38                         {
  39                             attrs: { id: "instructions-div" },
  40                             "class": {
  41                                 "clearer": true,
  42                                 "section-content": true,
  43                             },
  44                         },
  45                         [
  46                             h('p',
  47                                 {
  48                                     attrs: { id: "problem-instructions" },
  49                                     domProps: { innerHTML: this.problem.instructions }
  50                                 }
  51                             )
  52                         ]
  53                     )
  54                 );
  55             }
  56
  57
  58             // TODO ici :: instrus + diag interactif + solution
  59             my-board + pilotage via movesList + VariantRules !
  60
  61             <my-problem-preview v-show="stage=='preview'"
  62                 v-for="(p,idx) in problems"
  63                 v-bind:prob="p" v-bind:preview="false" v-bind:key="idx">
  64             </my-problem-summary>
  65             if (this.mode == "problem")
  66             {
  67                 // Show problem solution (on click)
  68                 elementArray.push(
  69                     h('div',
  70                         {
  71                             attrs: { id: "solution-div" },
  72                             "class": { "section-content": true },
  73                         },
  74                         [
  75                             h('h3',
  76                                 {
  77                                     "class": { clickable: true },
  78                                     domProps: { innerHTML: translations["Show solution"] },
  79                                     on: { click: this.toggleShowSolution },
  80                                 }
  81                             ),
  82                             h('p',
  83                                 {
  84                                     attrs: { id: "problem-solution" },
  85                                     domProps: { innerHTML: this.problem.solution }
  86                                 }
  87                             )
  88                         ]
  89                     )
  90                 );
  91             }
  92
  93             <input type="checkbox" id="modal-newproblem" class="modal">
  94             <div role="dialog" aria-labelledby="newProblemTxt">
  95                 <div v-show="stage=='nothing'" class="card newproblem-form">
  96                     <label for="modal-newproblem" class="modal-close"></label>
  97                     <h3 id="newProblemTxt">{{ translate("Add a problem") }}</h3>
  98                     <form @submit.prevent="previewNewProblem">
  99                         <fieldset>
 100                             <label for="newpbFen">FEN</label>
 101                             <input id="newpbFen" type="text" v-model="newProblem.fen"
 102                                 :placeholder='translate("Full FEN description")'/>
 103                         </fieldset>
 104                         <fieldset>
 105                             <p class="emphasis">{{ translate("Safe HTML tags allowed") }}</p>
 106                             <label for="newpbInstructions">{{ translate("Instructions") }}</label>
 107                             <textarea id="newpbInstructions" v-model="newProblem.instructions"
 108                                 :placeholder='translate("Describe the problem goal")'></textarea>
 109                             <label for="newpbSolution">{{ translate("Solution") }}</label>
 110                             <textarea id="newpbSolution" v-model="newProblem.solution"
 111                                 :placeholder='translate("How to solve the problem?")'></textarea>
 112                             <button class="center-btn">{{ translate("Preview") }}</button>
 113                         </fieldset>
 114                     </form>
 115                 </div>
 116                 <div v-show="stage=='preview'" class="card newproblem-preview">
 117                     <label for="modal-newproblem" class="modal-close"></label>
 118                     <my-problem-preview v-bind:prob="newProblem"></my-problem-summary>
 119                     <div class="button-group">
 120                         <button @click="newProblem.stage='nothing'">{{ translate("Cancel") }}</button>
 121                         <button @click="sendNewProblem()">{{ translate("Send") }}</button>
 122                     </div>
 123                 </div>
 124             </div>
 125         </div>
 126     `,
 127     computed: {
 128         sortedProblems: function() {
 129             // Newest problem first
 130         },
 131     },
 132     created: function() {
 133         // Analyse URL: if a single problem required, show it. Otherwise,
 134         // TODO: fetch most recent problems from server
 135     },
 136     methods: {
 137         translate: function(text) {
 138             return translations[text];
 139         },
 140         // TODO: obsolete:
 141 //      // Propagate "show problem" event to parent component (my-variant)
 142 //      bubbleUp: function(problem) {
 143 //          this.$emit('show-problem', JSON.stringify(problem));
 144 //      },
 145         toggleShowSolution: function() {
 146             let problemSolution = document.getElementById("problem-solution");
 147             problemSolution.style.display =
 148                 !problemSolution.style.display || problemSolution.style.display == "none"
 149                     ? "block"
 150                     : "none";
 151         },
 152         showPreviousProblem: function() {
 153             if (this.curIdx == 0)
 154                 this.fetchProblems("backward");
 155             else
 156                 this.curIdx--;
 157         },
 158         showNextProblem: function() {
 159             if (this.curIdx == this.problems.length - 1)
 160                 this.fetchProblems("forward");
 161             else
 162                 this.curIdx++;
 163         },
 164         // TODO: modal "no more problems"
 165         fetchProblems: function(direction) {
 166             if (this.problems.length == 0)
 167                 return; //what could we do?!
 168             // Search for newest date (or oldest)
 169             let last_dt = this.problems[0].added;
 170             for (let i=0; i<this.problems.length; i++)
 171             {
 172                 if ((direction == "forward" && this.problems[i].added > last_dt) ||
 173                     (direction == "backward" && this.problems[i].added < last_dt))
 174                 {
 175                     last_dt = this.problems[i].added;
 176                 }
 177             }
 178             ajax("/problems/" + variant.name, "GET", { //TODO: use variant._id ?
 179                 direction: direction,
 180                 last_dt: last_dt,
 181             }, response => {
 182                 if (response.problems.length > 0)
 183                 {
 184                     this.problems = response.problems
 185                         .sort((p1,p2) => { return p1.added - p2.added; });
 186                     this.curIdx = response.problems.length - 1;
 187                 }
 188             });
 189         },
 190         showNewproblemModal: function() {
 191             document.getElementById("modal-newproblem").checked = true;
 192         },
 193         previewNewProblem: function() {
 194             if (!V.IsGoodFen(this.newProblem.fen))
 195                 return alert(translations["Bad FEN description"]);
 196             if (this.newProblem.instructions.trim().length == 0)
 197                 return alert(translations["Empty instructions"]);
 198             if (this.newProblem.solution.trim().length == 0)
 199                 return alert(translations["Empty solution"]);
 200             this.newProblem.stage = "preview";
 201         },
 202         sendNewProblem: function() {
 203             // Send it to the server and close modal
 204             ajax("/problems/" + variant.name, "POST", { //TODO: with variant._id ?
 205                 fen: this.newProblem.fen,
 206                 instructions: this.newProblem.instructions,
 207                 solution: this.newProblem.solution,
 208             }, response => {
 209                 this.newProblem.added = Date.now();
 210                 this.problems.push(JSON.parse(JSON.stringify(this.newProblem)));
 211                 document.getElementById("modal-newproblem").checked = false;
 212                 this.newProblem.stage = "nothing";
 213             });
 214         },
 215     },
 216 })
 217
 218 // TODO:
 219 // possibilité de supprimer / éditer si peer ID reconnu comme celui du probleme (champ "uploader")
 220 // --> côté serveur on vérifie un certain "secret"
 221 // --> filtre possible "mes problèmes"