Warning, /education/gcompris/src/activities/gletters/FallingWord.qml is written in an unsupported language. File is not indexed.

 /* GCompris - Word.qml
  *
  * SPDX-FileCopyrightText: 2014 Holger Kaelberer <holger.k@elberer.de>
  *
  * Authors:
  *   Bruno Coudoin <bruno.coudoin@gcompris.net> (GTK+ version)
  *   Holger Kaelberer <holger.k@elberer.de> (Qt Quick port)
  *
  *
  *   SPDX-License-Identifier: GPL-3.0-or-later
  */
 import QtQuick 2.12
 import QtGraphicalEffects 1.0
 import GCompris 1.0
 
 import "../../core"
 import "gletters.js" as Activity
 
 Item {
     id: word
 
     width: wordText.width
     height: wordText.height
 
     /// index into text.split("") where next typed match should occur
     property int unmatchedIndex: 0;
     property alias text: wordText.text;
     property bool wonState: false
     property string mode
 
     signal won
 
     onWon: {
         wonState = true
         particle.burst(30)
         dropShadow.opacity = 0
         fadeout.restart();
     }
 
     Component.onCompleted: {
         // make sure our word is completely visible
         if (x + width >= parent.width)
             x = parent.width - width;
     }
 
     onUnmatchedIndexChanged: {
         if (unmatchedIndex <= 0)
             highlightedWordText.text = "";
         else if (wordText.text.length > 0 && wordText.text.length >= unmatchedIndex) {
             highlightedWordText.text = wordText.text.substring(0, unmatchedIndex);
             /* Need to add the ZERO WIDTH JOINER to force joined char in Arabic and
              * Hangul: https://en.wikipedia.org/wiki/Zero-width_joiner
              *
              * FIXME: this works only on desktop systems, on android this
              * shifts the typed word a few pixels down. */
             if (!ApplicationInfo.isMobile)
                 highlightedWordText.text += "\u200C";
         }
     }
 
     PropertyAnimation {
         id: fadeout
         target: word;
         property: "opacity"
         to: 0
         duration: 1000
         onStopped: Activity.deleteWord(word);
     }
 
     function checkMatch(c)
     {
         // We are in the ending animation
         if (wonState)
             return
 
         var chars = text.split("");
         if (chars[unmatchedIndex] === c) {
             unmatchedIndex++;
             return true;
         } else {
             unmatchedIndex = 0;
             return false;
         }
     }
 
     function startMoving(dur)
     {
         down.duration = dur;
         down.restart();
     }
 
     function isCompleted()
     {
         return (unmatchedIndex === text.length);
     }
 
     GCText {
         id: wordText
         text: ""
         fontSize: 35
         font.bold: true
         color: "navy"
         style: Text.Outline
         styleColor: "white"
 
         ParticleSystemStarLoader {
             id: particle
             clip: false
         }
 
         GCText {
             id: highlightedWordText
             anchors.fill: parent
             text: ""
             fontSize: parent.fontSize
             font.bold: parent.font.bold
             color: "red"
             style: Text.Outline
             styleColor: "white"
         }
     }
 
     DropShadow {
         id: dropShadow
         anchors.fill: wordText
         cached: false
         horizontalOffset: 1
         verticalOffset: 1
         radius: 3.0
         samples: 16
         color: "#422a2a2a"
         source: wordText
     }
 
     NumberAnimation {
         id: down
         target: word
         property: "y"
         to: parent.height
         duration: 10000
 
         onStopped: {
             Activity.audioCrashPlay();
             Activity.appendRandomWord(word.text)
             Activity.deleteWord(word);
         }
     }
 }