File indexing completed on 2024-05-05 15:53:02

 /* GCompris - click_on_letter.js
  *
  * SPDX-FileCopyrightText: 2014 Holger Kaelberer
  * 
  * Authors:
  *   Pascal Georges <pascal.georges1@free.fr> (GTK+ version)
  *   Bruno Coudoin <bruno.coudoin@gcompris.net> (GTK+ Mostly full rewrite)
  *   Holger Kaelberer <holger.k@elberer.de> (Qt Quick port)
  *
  *   SPDX-License-Identifier: GPL-3.0-or-later
  */
 
 .pragma library
 .import QtQuick 2.12 as Quick
 .import GCompris 1.0 as GCompris //for ApplicationInfo
 .import "qrc:/gcompris/src/core/core.js" as Core
 
 var url = "qrc:/gcompris/src/activities/click_on_letter/resource/"
 var defaultLevelsFile = ":/gcompris/src/activities/click_on_letter/resource/levels-en.json";
 var maxLettersPerLine = 6;
 
 var levels;
 var numberOfLevel;
 var currentLetter;
 var level;
 var questions;
 var answers;
 var items;
 var mode;
 
 function start(_items, _mode)
 {
     Core.checkForVoices(_items.activityPage);
 
     items = _items;
     mode = _mode;
 
     // register the voices for the locale
     var locale = GCompris.ApplicationInfo.getVoicesLocale(items.locale)
     GCompris.DownloadManager.updateResource(GCompris.GCompris.VOICES, {"locale": locale})
 
     loadLevels();
     items.score.currentSubLevel = 0;
     numberOfLevel = levels.length;
     items.currentLevel = Core.getInitialLevel(numberOfLevel);
     initLevel();
 }
 
 function validateLevels(levels)
 {
     var i;
     for (i = 0; i < levels.length; i++) {
         if (undefined === levels[i].questions
             || typeof levels[i].questions != "string"
             || levels[i].questions.length < 1
             || typeof levels[i].answers != "string"
             || levels[i].answers.length < 1)
             return false;
     }
     if (i < 1)
         return false;
     return true;
 }
 
 function loadLevels()
 {
     var ret;
     var locale = GCompris.ApplicationInfo.getVoicesLocale(items.locale)
     var filename = GCompris.ApplicationInfo.getLocaleFilePath(url + "levels-" + locale + ".json");
     levels = items.parser.parseFromUrl(filename);
     if (levels == null) {
         console.warn("Click_on_letter: Invalid levels file " + filename);
         // fallback to default Latin (levels-en.json) file:
         levels = items.parser.parseFromUrl(defaultLevelsFile);
         if (levels == null) {
             console.error("Click_on_letter: Invalid default levels file "
                 + defaultLevelsFile + ". Can't continue!");
             // any way to error-exit here?
             return;
         }
     }
     // at this point we have valid levels
     for (var i = 0; i < levels.length; i++) {
         if (mode === "lowercase") {
             levels[i].questions = levels[i].questions.toLocaleLowerCase();
             levels[i].answers = levels[i].answers.toLocaleLowerCase();
         } else {
             levels[i].questions = levels[i].questions.toLocaleUpperCase();
             levels[i].answers = levels[i].answers.toLocaleUpperCase();
         }
     }
 }
 
 function stop()
 {
 }
 
 function shuffleString(s)
 {
     var a = s.split("|");
     var n = a.length;
 
     for(var i = n-1; i>0; i--) {
         var j = Math.floor(Math.random() * (i + 1));
         var tmp = a[i];
         a[i] = a[j];
         a[j] = tmp;
     }
     return a.join("|");
 }
 
 function initLevel() {
     items.errorRectangle.resetState();
     if (items.score.currentSubLevel == 0) {
         level = levels[items.currentLevel];
         items.score.numberOfSubLevels = level.questions.split("|").length;
         questions = shuffleString(level.questions);
         answers = shuffleString(level.answers);
 
         var answerArr = answers.split("|");
         items.trainModel.clear();
         for (var i = 0; i < answerArr.length; i++) {                
             items.trainModel.append({
                 "letter": answerArr[i],
             });
         }
     }
 
     var locale = GCompris.ApplicationInfo.getVoicesLocale(items.locale);
     currentLetter = questions.split("|")[items.score.currentSubLevel];
     if (GCompris.ApplicationSettings.isAudioVoicesEnabled &&
             GCompris.DownloadManager.haveLocalResource(
                 GCompris.DownloadManager.getVoicesResourceForLocale(locale))) {
         items.audioVoices.append(GCompris.ApplicationInfo.getAudioFilePath("voices-$CA/"+locale+"/misc/click_on_letter.$CA"))
         items.audioVoices.silence(100)
         playLetter(currentLetter)
         items.questionItem.visible = false
         items.repeatItem.visible = true
     } else {
         // no sound -> show question
         items.questionItem.visible = true;
         items.repeatItem.visible = false
     }
     // Maybe we will display it if sound fails
     items.questionItem.text = currentLetter;
 
     items.buttonsBlocked = false;
 }
 
 function playLetter(letter) {
     var locale = GCompris.ApplicationInfo.getVoicesLocale(items.locale)
     items.audioVoices.append(GCompris.ApplicationInfo.getAudioFilePath("voices-$CA/"+locale+"/alphabet/"
                                                                        + Core.getSoundFilenamForChar(letter)))
 }
 
 function nextLevel() {
     items.score.stopWinAnimation();
     items.audioVoices.clearQueue();
     items.currentLevel = Core.getNextLevel(items.currentLevel, numberOfLevel);
     items.score.currentSubLevel = 0;
     initLevel();
 }
 
 function previousLevel() {
     items.score.stopWinAnimation();
     items.audioVoices.clearQueue();
     items.currentLevel = Core.getPreviousLevel(items.currentLevel, numberOfLevel);
     items.score.currentSubLevel = 0;
     initLevel();
 }
 
 function nextSubLevel() {
     items.audioVoices.clearQueue()
     if(items.score.currentSubLevel >= items.score.numberOfSubLevels) {
         items.bonus.good("flower")
     } else {
         initLevel();
     }
 }
 
 function checkAnswer(index) {
     var modelEntry = items.trainModel.get(index);
     if (modelEntry.letter === currentLetter) {
         items.score.currentSubLevel++;
         items.score.playWinAnimation();
         items.audioEffects.play("qrc:/gcompris/src/core/resource/sounds/completetask.wav");
         return true
     } else {
         return false
     }
 }
 
 function focusEventHandler() {
     if (items && items.eventHandler)
         items.eventHandler.forceActiveFocus();
 }