Very early KDE 6 release.

kwin/effects/fadingpopups/contents/code/main.js

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+/*
+    KWin - the KDE window manager
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2018 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+"use strict";
+
+var blacklist = [
+    // ignore black background behind lockscreen
+    "ksmserver ksmserver",
+    // The logout screen has to be animated only by the logout effect.
+    "ksmserver-logout-greeter ksmserver-logout-greeter",
+    // The lockscreen isn't a popup window
+    "kscreenlocker_greet kscreenlocker_greet",
+    // KDE Plasma splash screen has to be animated only by the login effect.
+    "ksplashqml ksplashqml"
+];
+
+var blacklistNames = [
+    "seventasks-floatingavatar",
+    "aerothemeplasma-windowframe-special"
+];
+
+function isPopupWindow(window) {
+
+    // If the window is blacklisted, don't animate it.
+    if (blacklist.indexOf(window.windowClass) != -1) {
+        return false;
+    }
+
+    if(blacklistNames.indexOf(window.caption) != -1) {
+        return false;
+    }
+    // Animate combo box popups, tooltips, popup menus, etc.
+    if (window.popupWindow) {
+        return true;
+    }
+
+    // Maybe the outline deserves its own effect.
+    if (window.outline) {
+        return true;
+    }
+
+    // Override-redirect windows are usually used for user interface
+    // concepts that are expected to be animated by this effect, e.g.
+    // popups that contain window thumbnails on X11, etc.
+    if (!window.managed) {
+        // Some utility windows can look like popup windows (e.g. the
+        // address bar dropdown in Firefox), but we don't want to fade
+        // them because the fade effect didn't do that.
+        if (window.utility) {
+            return false;
+        }
+
+        return true;
+    }
+
+    // Previously, there was a "monolithic" fade effect, which tried to
+    // animate almost every window that was shown or hidden. Then it was
+    // split into two effects: one that animates toplevel windows and
+    // this one. In addition to popups, this effect also animates some
+    // special windows(e.g. notifications) because the monolithic version
+    // was doing that.
+    if (window.dock || window.splash || window.toolbar
+            || window.notification || window.onScreenDisplay
+            || window.criticalNotification
+            || window.appletPopup) {
+        return true;
+    }
+
+    return false;
+}
+
+var fadingPopupsEffect = {
+    loadConfig: function () {
+        fadingPopupsEffect.fadeInDuration = animationTime(150);
+        fadingPopupsEffect.fadeOutDuration = animationTime(150) * 4;
+    },
+    slotWindowAdded: function (window) {
+        if (effects.hasActiveFullScreenEffect) {
+            return;
+        }
+        if (!isPopupWindow(window)) {
+            return;
+        }
+        if (!window.visible) {
+            return;
+        }
+        if (!effect.grab(window, Effect.WindowAddedGrabRole)) {
+            return;
+        }
+        window.fadeInAnimation = animate({
+            window: window,
+            curve: QEasingCurve.Linear,
+            duration: fadingPopupsEffect.fadeInDuration,
+            type: Effect.Opacity,
+            from: 0.0,
+            to: 1.0
+        });
+    },
+    slotWindowClosed: function (window) {
+        if (effects.hasActiveFullScreenEffect) {
+            return;
+        }
+        if (!isPopupWindow(window)) {
+            return;
+        }
+        if (!window.visible || window.skipsCloseAnimation) {
+            return;
+        }
+        if (!effect.grab(window, Effect.WindowClosedGrabRole)) {
+            return;
+        }
+            window.fadeOutAnimation = animate({
+                window: window,
+                curve: QEasingCurve.OutQuart,
+                duration: fadingPopupsEffect.fadeOutDuration,
+                type: Effect.Opacity,
+                from: 1.0,
+                to: 0.0
+            });
+
+
+    },
+    slotWindowDataChanged: function (window, role) {
+        if (role == Effect.WindowAddedGrabRole) {
+            if (window.fadeInAnimation && effect.isGrabbed(window, role)) {
+                cancel(window.fadeInAnimation);
+                delete window.fadeInAnimation;
+            }
+        } else if (role == Effect.WindowClosedGrabRole) {
+            if (window.fadeOutAnimation && effect.isGrabbed(window, role)) {
+                cancel(window.fadeOutAnimation);
+                delete window.fadeOutAnimation;
+            }
+        }
+    },
+    init: function () {
+        fadingPopupsEffect.loadConfig();
+
+        effect.configChanged.connect(fadingPopupsEffect.loadConfig);
+        effects.windowAdded.connect(fadingPopupsEffect.slotWindowAdded);
+        effects.windowClosed.connect(fadingPopupsEffect.slotWindowClosed);
+        effects.windowDataChanged.connect(fadingPopupsEffect.slotWindowDataChanged);
+    }
+};
+
+fadingPopupsEffect.init();

kwin/effects/fadingpopups/metadata.json

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+{
+    "KPackageStructure": "KWin/Effect",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "vlad.zahorodnii@kde.org",
+                "Name": "Vlad Zahorodnii",
+                "Name[ar]": "فلاد زاهورودني",
+                "Name[az]": "Vlad Zahorodnii",
+                "Name[be]": "Vlad Zahorodnii",
+                "Name[bg]": "Vlad Zahorodnii",
+                "Name[ca@valencia]": "Vlad Zahorodnii",
+                "Name[ca]": "Vlad Zahorodnii",
+                "Name[cs]": "Vlad Zahorodnii",
+                "Name[de]": "Vlad Zahorodnii",
+                "Name[en_GB]": "Vlad Zahorodnii",
+                "Name[eo]": "Vlad Zahorodnii",
+                "Name[es]": "Vlad Zahorodnii",
+                "Name[et]": "Vlad Zahorodnii",
+                "Name[eu]": "Vlad Zahorodnii",
+                "Name[fi]": "Vlad Zahorodnii",
+                "Name[fr]": "Vlad Zahorodnii",
+                "Name[gl]": "Vlad Zahorodnii.",
+                "Name[he]": "ולאד זהורודני",
+                "Name[hu]": "Vlad Zahorodnii",
+                "Name[ia]": "Vlad Zahorodnii",
+                "Name[id]": "Vlad Zahorodnii",
+                "Name[is]": "Vlad Zahorodnii",
+                "Name[it]": "Vlad Zahorodnii",
+                "Name[ja]": "Vlad Zahorodnii",
+                "Name[ka]": "Vlad Zahorodnii",
+                "Name[ko]": "Vlad Zahorodnii",
+                "Name[lt]": "Vlad Zahorodnii",
+                "Name[nl]": "Vlad Zahorodnii",
+                "Name[nn]": "Vlad Zahorodnii",
+                "Name[pl]": "Vlad Zahorodnii",
+                "Name[pt]": "Vlad Zahorodnii",
+                "Name[pt_BR]": "Vlad Zahorodnii",
+                "Name[ro]": "Vlad Zahorodnii",
+                "Name[ru]": "Влад Загородний",
+                "Name[sk]": "Vlad Zahorodnii",
+                "Name[sl]": "Vlad Zahorodnii",
+                "Name[sv]": "Vlad Zahorodnii",
+                "Name[ta]": "விலாட் ஜாஹொரிடுனி",
+                "Name[tr]": "Vlad Zahorodnii",
+                "Name[uk]": "Влад Загородній",
+                "Name[vi]": "Vlad Zahorodnii",
+                "Name[x-test]": "xxVlad Zahorodniixx",
+                "Name[zh_CN]": "Vlad Zahorodnii",
+                "Name[zh_TW]": "Vlad Zahorodnii"
+            }
+        ],
+        "Category": "Appearance",
+        "Description": "Make popups smoothly fade in and out when they are shown or hidden",
+        "Description[ar]": "اجعل النوافذ المنبثقة تظهر وتتلاشى بنعومة عند إظهاراها وإخفائها",
+        "Description[be]": "Плаўнае згасанне або з'яўленне выплыўных акон",
+        "Description[bg]": "Постепенно избледняване при показване и скриване на изскачащите прозорци",
+        "Description[ca@valencia]": "Fa que els missatges emergents s'encengen o s'apaguen de manera gradual quan es mostren o s'oculten",
+        "Description[ca]": "Fa que els missatges emergents s'encenguin o s'apaguin de manera gradual quan es mostren o s'oculten",
+        "Description[cs]": "Nechá vyskakovací okna plynule zmizet/objevit se, pokud jsou zobrazeny resp. skryty",
+        "Description[de]": "Blendet Aufklappfenster beim Öffnen/Schließen langsam ein bzw. aus",
+        "Description[en_GB]": "Make popups smoothly fade in and out when they are shown or hidden",
+        "Description[eo]": "Fari ŝprucfenestrojn glate mal- kaj fordissolvi kiam ili estas montritaj aŭ kaŝitaj",
+        "Description[es]": "Hacer que las ventanas emergentes se desvanezcan y reaparezcan suavemente al mostrarlas y al ocultarlas",
+        "Description[et]": "Paneb hüpikaknad sujuvalt hääbuma või tugevnema, kui need peidetakse või nähtavale tuuakse",
+        "Description[eu]": "Gainerakorrak emeki koloregabetu/koloretu haiek erakustean edo ezkutatzean",
+        "Description[fi]": "Häivyttää ponnahdusikkunat pehmeästi näytölle tai näytöltä",
+        "Description[fr]": "Faire un fondu enchaîné avant ou arrière des infobulles lorsqu'elles sont affichées ou masquées",
+        "Description[gl]": "Esvae e fai opacas as xanelas emerxentes con suavidade ao mostralas ou agochadas.",
+        "Description[he]": "לגרום לחלוניות צצות להתעמעם פנימה או החוצה בצורה חלקה כשהם מופיעים או מוסתרים",
+        "Description[hu]": "A felugrók folyamatosan áttűnő módon lesznek elrejtve és megjelenítve",
+        "Description[ia]": "Face que fenestras pote dulcemente pallidir intra e foras quando illos es monstrate o celate",
+        "Description[is]": "Láta sprettiglugga birtast og hverfa mjúklega þegar þeir eru opnaðir eða faldir",
+        "Description[it]": "Fai dissolvere e comparire gradualmente le finestre a comparsa quando vengono mostrate o nascoste",
+        "Description[ja]": "ポップアップが表示/非表示時にフェードします",
+        "Description[ka]": "მხტუნარების რბილი მინავლება და გამოჩენა, როცა ისინი იმალება ან გამოჩნდებიან",
+        "Description[ko]": "팝업이 보여지거나 감춰질 때 부드러운 페이드 인/아웃을 사용합니다",
+        "Description[lt]": "Padaryti, kad iškylantieji langai glotniai laipsniškai atsirastų ir išnyktų, kai yra rodomi ar slepiami",
+        "Description[nl]": "Laat pop-ups vloeiend opkomen/vervagen als ze worden weergegeven of verborgen",
+        "Description[nn]": "Ton sprettoppvindauge gradvis inn og ut når dei vert viste eller gøymde",
+        "Description[pl]": "Okna wysuwne gładko wyłaniają się przy otwieraniu i zanikają przy zamykaniu",
+        "Description[pt]": "Faz com que as janelas modais apareçam e desapareçam suavemente quando são apresentadas ou escondidas",
+        "Description[ro]": "Face indiciile să se (de)coloreze când sunt arătate sau ascunse",
+        "Description[ru]": "Всплывающие окна при закрытии будут становиться всё более прозрачными, а потом совсем исчезать",
+        "Description[sk]": "Plynulé objavovanie a miznutie vyskakovacích okien pri ich zobrazení alebo skrytí",
+        "Description[sl]": "Modalna okna naj se gladko odtemnijo oz. zatemnijo, kadar se prikažejo ali skrijejo",
+        "Description[ta]": "தெரித்தெழும் சாளரங்கள் காட்டப்படும்போது படிப்படியாக ஒளிகூடி மறைக்கப்படும்போது மங்கி செல்லும்",
+        "Description[tr]": "Açılır pencereler gösterilirken veya gizlenirken pürüzsüzce geçiş yapmalarını sağlar",
+        "Description[uk]": "Поступова поява або зникнення контекстних вікон вікон при відкритті чи закритті",
+        "Description[vi]": "Làm ô bật lên hiện dần và mờ dần một cách êm dịu khi chúng hiện ra và biến mất",
+        "Description[x-test]": "xxMake popups smoothly fade in and out when they are shown or hiddenxx",
+        "Description[zh_CN]": "气泡信息显示/隐藏时呈现渐入渐出过渡动画",
+        "Description[zh_TW]": "讓彈出視窗在顯示或隱藏的時候平滑地淡入或淡出",
+        "EnabledByDefault": true,
+        "Icon": "preferences-system-windows-effect-fadingpopups",
+        "Id": "fadingpopups",
+        "License": "GPL",
+        "Name": "Fading Popups",
+        "Name[ar]": "تتلاشى النوافذ المنبثقة",
+        "Name[be]": "Згасанне выплыўных акон",
+        "Name[bg]": "Избледняващи  изскачащи прозорци",
+        "Name[ca@valencia]": "Missatges emergents esvaïts",
+        "Name[ca]": "Missatges emergents esvaïts",
+        "Name[cs]": "Mizející vyskakovací okna",
+        "Name[de]": "Überblendete Aufklappfenster",
+        "Name[en_GB]": "Fading Popups",
+        "Name[eo]": "Fading Popups",
+        "Name[es]": "Desvanecer ventanas emergentes",
+        "Name[et]": "Hääbuvad hüpikdialoogid",
+        "Name[eu]": "Itzaleztatzen diren gainerakorrak",
+        "Name[fi]": "Ponnahdusikkunoiden häivytys",
+        "Name[fr]": "Atténuation des infobulles",
+        "Name[gl]": "Xanelas emerxentes que esvaen",
+        "Name[he]": "חלונית צצות דועכות",
+        "Name[hu]": "Áttűnő felugrók",
+        "Name[ia]": "Popups dissolvente",
+        "Name[is]": "Dofnandi sprettigluggar",
+        "Name[it]": "Finestre a comparsa che si dissolvono",
+        "Name[ja]": "フェードするポップアップ",
+        "Name[ka]": "მინავლებადი მხტუნარები",
+        "Name[ko]": "페이드 팝업",
+        "Name[lt]": "Laipsniškai išnykstantys ir atsirandantys iškylantieji langai",
+        "Name[nl]": "Vervagende pop-ups",
+        "Name[nn]": "Inn- og uttoning av sprettoppvindauge",
+        "Name[pl]": "Zanikanie okien wysuwnych",
+        "Name[pt]": "Janelas a Desvanecer",
+        "Name[pt_BR]": "Desvanecer mensagens",
+        "Name[ro]": "Indicii estompate",
+        "Name[ru]": "Растворяющиеся всплывающие окна",
+        "Name[sk]": "Miznúce vyskakovacie okná",
+        "Name[sl]": "Prelivni pojavni gradniki",
+        "Name[ta]": "தெரித்தெழும் சாளரங்கள் மங்கும்",
+        "Name[tr]": "Solan Açılır Pencereler",
+        "Name[uk]": "Інтерактивні контекстні панелі",
+        "Name[vi]": "Ô bật lên ngả màu",
+        "Name[x-test]": "xxFading Popupsxx",
+        "Name[zh_CN]": "气泡显隐渐变动画",
+        "Name[zh_TW]": "淡化彈出視窗"
+    },
+    "X-KDE-Ordering": 60,
+    "X-Plasma-API": "javascript"
+}

kwin/effects/login/contents/code/main.js

@@ -0,0 +1,72 @@
+/*
+    KWin - the KDE window manager
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2007 Lubos Lunak <l.lunak@kde.org>
+    SPDX-FileCopyrightText: 2013 Martin Gräßlin <mgraesslin@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+"use strict";
+
+var loginEffect = {
+    duration: animationTime(300),
+    isFadeToBlack: false,
+    loadConfig: function () {
+        loginEffect.isFadeToBlack = effect.readConfig("FadeToBlack", false);
+    },
+    isLoginSplash: function (window) {
+        return window.windowClass === "ksplashqml ksplashqml";
+    },
+    isLockScreen: function (window) {
+        return window.windowClass === "kscreenlocker_greet kscreenlocker_greet";
+    },
+    fadeOut: function (window) {
+        animate({
+            window: window,
+            duration: loginEffect.duration,
+            type: Effect.Opacity,
+            from: 1.0,
+            to: 0.0
+        });
+    },
+    fadeToBlack: function (window) {
+        animate({
+            window: window,
+            duration: loginEffect.duration / 2,
+            animations: [{
+                type: Effect.Brightness,
+                from: 1.0,
+                to: 0.0
+            }, {
+                type: Effect.Opacity,
+                from: 1.0,
+                to: 0.0,
+                delay: loginEffect.duration / 2
+            }, {
+                // TODO: is there a better way to keep brightness constant?
+                type: Effect.Brightness,
+                from: 0.0,
+                to: 0.0,
+                delay: loginEffect.duration / 2
+            }]
+        });
+    },
+    closed: function (window) {
+        if (!(loginEffect.isLoginSplash(window) || loginEffect.isLockScreen(window))) {
+            return;
+        }
+        if (loginEffect.isFadeToBlack === true && !loginEffect.isLockScreen(window)) {
+            loginEffect.fadeToBlack(window);
+        } else {
+            loginEffect.fadeOut(window);
+        }
+    },
+    init: function () {
+        effect.configChanged.connect(loginEffect.loadConfig);
+        effects.windowClosed.connect(loginEffect.closed);
+        loginEffect.loadConfig();
+    }
+};
+loginEffect.init();

kwin/effects/login/contents/config/main.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
+                          http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
+    <kcfgfile name=""/>
+    <group name="">
+        <entry name="FadeToBlack" type="Bool">
+            <default>false</default>
+        </entry>
+    </group>
+</kcfg>

kwin/effects/login/contents/ui/config.ui

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>KWin::LoginEffectConfigForm</class>
+ <widget class="QWidget" name="KWin::LoginEffectConfigForm">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>160</height>
+   </rect>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QCheckBox" name="kcfg_FadeToBlack">
+     <property name="text">
+      <string>Fade to black (fullscreen splash screens only)</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

kwin/effects/login/metadata.json

@@ -0,0 +1,146 @@
+{
+    "KPackageStructure": "KWin/Effect",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "l.lunak@kde.org, kde@privat.broulik.de, mgraesslin@kde.org",
+                "Name": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ar]": "لوبوس لوناك، كاي أووي بروتيك، مارتن جراجلين",
+                "Name[be]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[bg]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ca@valencia]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ca]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[cs]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[de]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[en_GB]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[eo]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[es]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[et]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[eu]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[fi]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[fr]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[gl]": "Lubos Lunak, Kai Uwe Broulik e Martin Gräßlin.",
+                "Name[he]": "לובוש לוניאק, קאי אווה ברוליקה, מרטין גרייסלין",
+                "Name[hu]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ia]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[is]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[it]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ja]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ka]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ko]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[lt]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[lv]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[nl]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[nn]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[pl]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[pt]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ro]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ru]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[sk]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[sl]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[sv]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[ta]": "லூபோசு லுனாக்கு, காய் ஊவே புரோலிக்கு, மார்ட்டின் கிராஸ்லின்",
+                "Name[tr]": "Luboš Luňák, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[uk]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[vi]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[x-test]": "xxLubos Lunak, Kai Uwe Broulik, Martin Gräßlinxx",
+                "Name[zh_CN]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin",
+                "Name[zh_TW]": "Lubos Lunak, Kai Uwe Broulik, Martin Gräßlin"
+            }
+        ],
+        "Category": "Appearance",
+        "Description": "Smoothly fade to the desktop when logging in",
+        "Description[ar]": "اظهار سطح المكتب بنعومة عند الولوج",
+        "Description[be]": "Плаўнае зацямненне працоўнага стала падчас уваходу",
+        "Description[bg]": "Плавен преход към работния плот при влизане",
+        "Description[ca@valencia]": "Transició suau a l'escriptori en connectar-se",
+        "Description[ca]": "Transició suau a l'escriptori en connectar-se",
+        "Description[cs]": "Plynule zobrazit plochu po přihlášení",
+        "Description[de]": "Blendet die Arbeitsfläche nach der Anmeldung langsam ein",
+        "Description[en_GB]": "Smoothly fade to the desktop when logging in",
+        "Description[eo]": "Glate dissolvi al la labortablo dum ensaluto",
+        "Description[es]": "Desvanecimiento suave para mostrar el escritorio al iniciar sesión",
+        "Description[et]": "Töölaua sujuv ilmumine sisselogimisel",
+        "Description[eu]": "Emeki desagertu mahaigainerantz saio-hastean",
+        "Description[fi]": "Häivytä kirjauduttaessa pehmeästi työpöydälle",
+        "Description[fr]": "Effectuer un dégradé progressif vers le bureau lors de la connexion",
+        "Description[gl]": "Suaviza a entrada no escritorio cun efecto de esvaecemento.",
+        "Description[he]": "עמעום חלק לתוך שולחן העבודה עם הכניסה למערכת",
+        "Description[hu]": "Finom elhalványodás az asztalra bejelentkezéskor",
+        "Description[ia]": "Dulcemente pallidi le scriptorio quando tu accede in identification",
+        "Description[is]": "Láta skjáborð birtast mjúklega við innskráningu",
+        "Description[it]": "Dissolvenza graduale del desktop all'accesso",
+        "Description[ja]": "ログイン時にデスクトップを滑らかに表示します",
+        "Description[ka]": "შესვლისას სამუშაო მაგიდაზე რბილი გადასვლა",
+        "Description[ko]": "로그인할 때 부드럽게 바탕 화면을 보여 줍니다",
+        "Description[lt]": "Prisijungiant laipsniškai pereiti į darbalaukį",
+        "Description[lv]": "Ierakstīšanās laikā vienmērīgi izgaist līdz darbvirsmai",
+        "Description[nl]": "Laat het opstartscherm vervagen naar het opkomende bureaublad tijdens het aanmelden",
+        "Description[nn]": "Ton inn skrivebordet ved innlogging",
+        "Description[pl]": "Płynne rozjaśnianie do pulpitu podczas logowania",
+        "Description[pt]": "Desvanecer suavemente para o ecrã após a autenticação",
+        "Description[ro]": "Estompează lin biroul la autentificare",
+        "Description[ru]": "Плавное проявление рабочего стола при входе в систему",
+        "Description[sk]": "Plynulé prelínanie na plochu pri prihlasovaní",
+        "Description[sl]": "Ob prijavi gladko prelije na namizje",
+        "Description[sv]": "Tona mjukt till skrivbordet vid inloggning",
+        "Description[ta]": "அமர்வில் நுழையும்போது பணிமேடையின் ஒளிபுகாமையை படிப்படியாக உயர்த்தி அதைக் காட்டும்",
+        "Description[tr]": "Oturum açarken masaüstüne pürüzsüzce geçiş yap",
+        "Description[uk]": "Плавна поява стільниці під час входу",
+        "Description[vi]": "Làm mờ dần sang bàn làm việc một cách êm dịu khi đăng nhập",
+        "Description[x-test]": "xxSmoothly fade to the desktop when logging inxx",
+        "Description[zh_CN]": "登录时平滑地过渡到桌面",
+        "Description[zh_TW]": "登入時平順地淡入桌面",
+        "EnabledByDefault": true,
+        "Icon": "preferences-system-windows-effect-login",
+        "Id": "login",
+        "License": "GPL",
+        "Name": "Login",
+        "Name[ar]": "ولوج",
+        "Name[be]": "Увайсці",
+        "Name[bg]": "Вход",
+        "Name[ca@valencia]": "Inici de sessió",
+        "Name[ca]": "Inici de sessió",
+        "Name[cs]": "Přihlášení",
+        "Name[de]": "Anmeldung",
+        "Name[en_GB]": "Login",
+        "Name[eo]": "Ensaluti",
+        "Name[es]": "Inicio de sesión",
+        "Name[et]": "Sisselogimine",
+        "Name[eu]": "Saio-hastea",
+        "Name[fi]": "Kirjaudu",
+        "Name[fr]": "Se connecter",
+        "Name[gl]": "Acceso",
+        "Name[he]": "כניסה",
+        "Name[hu]": "Bejelentkezés",
+        "Name[ia]": "Accesso de identification",
+        "Name[is]": "Innskráning",
+        "Name[it]": "Accedi",
+        "Name[ja]": "ログイン",
+        "Name[ka]": "შესვლა",
+        "Name[ko]": "로그인",
+        "Name[lt]": "Prisijungimas",
+        "Name[lv]": "Ierakstīšanās",
+        "Name[nl]": "Aanmelden",
+        "Name[nn]": "Innlogging",
+        "Name[pl]": "Logowanie",
+        "Name[pt]": "Arranque",
+        "Name[pt_BR]": "Início de sessão",
+        "Name[ro]": "Autentificare",
+        "Name[ru]": "Вход в систему",
+        "Name[sk]": "Prihlásenie",
+        "Name[sl]": "Prijava",
+        "Name[sv]": "Inloggning",
+        "Name[ta]": "நுழைவு",
+        "Name[tr]": "Oturumu Aç",
+        "Name[uk]": "Вхід",
+        "Name[vi]": "Đăng nhập",
+        "Name[x-test]": "xxLoginxx",
+        "Name[zh_CN]": "登录渐变动画",
+        "Name[zh_TW]": "登入"
+    },
+    "X-KDE-ConfigModule": "kcm_kwin4_genericscripted",
+    "X-KDE-Ordering": 40,
+    "X-KWin-Config-TranslationDomain": "kwin",
+    "X-Plasma-API": "javascript"
+}

kwin/effects/morphingpopups/contents/code/main.js

@@ -0,0 +1,137 @@
+/*
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2012 Martin Gräßlin <mgraesslin@kde.org>
+    SPDX-FileCopyrightText: 2016 Marco Martin <mart@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+"use strict";
+
+var morphingEffect = {
+    duration: animationTime(200),
+    loadConfig: function () {
+        morphingEffect.duration = animationTime(200);
+    },
+
+    handleFrameGeometryAboutToChange: function (window) {
+        var couldRetarget = false;
+        if (window.fadeAnimation) {
+            couldRetarget = retarget(window.fadeAnimation[0], 1.0, morphingEffect.duration);
+        }
+
+        if (!couldRetarget) {
+            window.fadeAnimation = animate({
+                window: window,
+                duration: morphingEffect.duration,
+                curve: QEasingCurve.Linear,
+                animations: [{
+                    type: Effect.CrossFadePrevious,
+                    to: 1.0,
+                    from: 0.0
+                }]
+            });
+        }
+    },
+    handleFrameGeometryChanged: function (window, oldGeometry) {
+        var newGeometry = window.geometry;
+
+        //only do the transition for near enough tooltips,
+        //don't cross the whole screen: ugly
+        var distance = Math.abs(oldGeometry.x - newGeometry.x) + Math.abs(oldGeometry.y - newGeometry.y);
+
+        if (distance > (newGeometry.width + newGeometry.height) * 2) {
+            if (window.moveAnimation) {
+                delete window.moveAnimation;
+            }
+            if (window.fadeAnimation) {
+                delete window.fadeAnimation;
+            }
+
+            return;
+        }
+
+        //don't resize it "too much", set as four times
+        if ((newGeometry.width / oldGeometry.width) > 8 ||
+            (oldGeometry.width / newGeometry.width) > 8 ||
+            (newGeometry.height / oldGeometry.height) > 8 ||
+            (oldGeometry.height / newGeometry.height) > 8) {
+            return;
+        }
+
+        window.setData(Effect.WindowForceBackgroundContrastRole, false);
+        window.setData(Effect.WindowForceBlurRole, true);
+
+        var couldRetarget = false;
+
+        if (window.moveAnimation) {
+            if (window.moveAnimation[0]) {
+                couldRetarget = retarget(window.moveAnimation[0], {
+                        value1: newGeometry.width,
+                        value2: newGeometry.height
+                    }, morphingEffect.duration);
+            }
+            if (couldRetarget && window.moveAnimation[1]) {
+                couldRetarget = retarget(window.moveAnimation[1], {
+                        value1: newGeometry.x + newGeometry.width/2,
+                        value2: newGeometry.y + newGeometry.height / 2
+                    }, morphingEffect.duration);
+            }
+            if (!couldRetarget) {
+                cancel(window.moveAnimation[0]);
+            }
+
+        }
+
+        if (!couldRetarget) {
+            window.moveAnimation = animate({
+                window: window,
+                duration: morphingEffect.duration,
+                curve: QEasingCurve.Linear,
+                animations: [{
+                    type: Effect.Size,
+                    to: {
+                        value1: newGeometry.width,
+                        value2: newGeometry.height
+                    },
+                    from: {
+                        value1: oldGeometry.width,
+                        value2: oldGeometry.height
+                    }
+                }, {
+                    type: Effect.Position,
+                    to: {
+                        value1: newGeometry.x + newGeometry.width / 2,
+                        value2: newGeometry.y + newGeometry.height / 2
+                    },
+                    from: {
+                        value1: oldGeometry.x + oldGeometry.width / 2,
+                        value2: oldGeometry.y + oldGeometry.height / 2
+                    }
+                }]
+            });
+
+        }
+    },
+
+    manage: function (window) {
+        //only tooltips and notifications
+        if (!window.tooltip && !window.notification && !window.criticalNotification) {
+            return;
+        }
+
+        window.windowFrameGeometryAboutToChange.connect(morphingEffect.handleFrameGeometryAboutToChange);
+        window.windowFrameGeometryChanged.connect(morphingEffect.handleFrameGeometryChanged);
+    },
+
+    init: function () {
+        effect.configChanged.connect(morphingEffect.loadConfig);
+        effects.windowAdded.connect(morphingEffect.manage);
+
+        for (const window of effects.stackingOrder) {
+            morphingEffect.manage(window);
+        }
+    }
+};
+morphingEffect.init();

kwin/effects/morphingpopups/metadata.json

@@ -0,0 +1,141 @@
+{
+    "KPackageStructure": "KWin/Effect",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "mart@kde.org",
+                "Name": "Marco Martin",
+                "Name[ar]": "ماركو مارتن",
+                "Name[ast]": "Marco Martin",
+                "Name[az]": "Marco Martin",
+                "Name[be]": "Marco Martin",
+                "Name[bg]": "Marco Martin",
+                "Name[ca@valencia]": "Marco Martin",
+                "Name[ca]": "Marco Martin",
+                "Name[cs]": "Marco Martin",
+                "Name[de]": "Marco Martin",
+                "Name[en_GB]": "Marco Martin",
+                "Name[eo]": "Marco Martin",
+                "Name[es]": "Marco Martin",
+                "Name[et]": "Marco Martin",
+                "Name[eu]": "Marco Martin",
+                "Name[fi]": "Marco Martin",
+                "Name[fr]": "Marco Martin",
+                "Name[gl]": "Marco Martin",
+                "Name[he]": "מרקו מרטין",
+                "Name[hu]": "Marco Martin",
+                "Name[ia]": "Marco Martin",
+                "Name[id]": "Marco Martin",
+                "Name[is]": "Marco Martin",
+                "Name[it]": "Marco Martin",
+                "Name[ja]": "Marco Martin",
+                "Name[ka]": "Marco Martin",
+                "Name[ko]": "Marco Martin",
+                "Name[lt]": "Marco Martin",
+                "Name[nl]": "Marco Martin",
+                "Name[nn]": "Marco Martin",
+                "Name[pl]": "Marco Martin",
+                "Name[pt]": "Marco Martin",
+                "Name[pt_BR]": "Marco Martin",
+                "Name[ro]": "Marco Martin",
+                "Name[ru]": "Marco Martin",
+                "Name[sk]": "Marco Martin",
+                "Name[sl]": "Marco Martin",
+                "Name[sv]": "Marco Martin",
+                "Name[ta]": "மார்கோ மார்ட்டின்",
+                "Name[tr]": "Marco Martin",
+                "Name[uk]": "Marco Martin",
+                "Name[vi]": "Marco Martin",
+                "Name[x-test]": "xxMarco Martinxx",
+                "Name[zh_CN]": "Marco Martin",
+                "Name[zh_TW]": "Marco Martin"
+            }
+        ],
+        "Category": "Appearance",
+        "Description": "Cross fade animation when Tooltips or Notifications change their geometry",
+        "Description[ar]": "تحريك التلاشي المتقاطع عندما يغير التلميح أو الإشعار من أبعاده",
+        "Description[be]": "Анімацыя згасання пры змене геаметрыі выплыўных падказак і апавяшчэнняў",
+        "Description[bg]": "Кръстосано преливане, когато подсказките или известията променят геометрията си",
+        "Description[ca@valencia]": "Animació d'esvaïment creuat quan els consells d'eines o les notificacions canvien la seua geometria",
+        "Description[ca]": "Animació d'esvaïment creuat quan els consells d'eines o les notificacions canvien la seva geometria",
+        "Description[de]": "Überblendende Animationen, wenn Kurzinfos oder Benachrichtigungen ihre Geometrie ändern",
+        "Description[en_GB]": "Cross fade animation when Tooltips or Notifications change their geometry",
+        "Description[eo]": "Krucfada animacio kiam Konsiletoj aŭ Sciigoj ŝanĝas sian geometrion",
+        "Description[es]": "Animación cruzada cuando las ayudas emergentes o las notificaciones cambian su geometría",
+        "Description[et]": "Animatsioon hääbumisega, kui kohtspikrid või märguanded muudavad geomeetriat",
+        "Description[eu]": "Desagertze gurutzatua tresnen argibideek edo jakinarazpenek geometria aldatzen dutenean",
+        "Description[fi]": "Häivytysanimaatio työkaluvihjeiden tai ilmoitusten muutettua muotoaan",
+        "Description[fr]": "Animation en fondu enchaîné lorsque des infobulles ou des notifications modifient leurs géométries",
+        "Description[gl]": "Usar unha animación de esvaemento cando a xeometría das mensaxes emerxentes de axuda ou notificación cambia.",
+        "Description[he]": "הנפשת עמעום צולבת כשחלוניות עצה או התראות משנים את גודלם/מיקומם",
+        "Description[hu]": "Keresztbe halványulás animáció, amikor a buboréksúgók vagy az értesítések megváltoztatják a geometriájukat",
+        "Description[ia]": "Transversa animation distingite quando Consilios o Notificationes cambia le lor geometria",
+        "Description[is]": "Láta dofna á milli þegar vísbendingar eða tilkynningar breyta stærð sinni og/eða stöðu",
+        "Description[it]": "Animazione in dissolvenza quando i suggerimenti e le notifiche cambiano la loro geometria",
+        "Description[ja]": "ツールチップや通知ポップアップのジオメトリ変更時のクロスフェードアニメーション",
+        "Description[ka]": "ჯვროვანი მინავლება, როცა მინიშნებები ან გაფრთხილებები გეომეტრიას იცვლიან",
+        "Description[ko]": "풍선 도움말이나 알림 크기가 변경될 때 크로스페이드 애니메이션 사용",
+        "Description[lt]": "Užplūdimo animacija, kai paaiškinimai ar pranešimai pakeičia savo geometriją",
+        "Description[nl]": "Verwissel animatie van opkomen/vervagen wanneer tekstballonnen of meldingen hun geometrie wijzigen",
+        "Description[nn]": "Krysstoningsanimasjon når hjelpebobler eller varslingar endrar form",
+        "Description[pl]": "Efekt zmiany kształtu podpowiedzi i powiadomień przy zmianie ich geometrii",
+        "Description[pt]": "Animações desvanecidas quando as dicas ou notificações mudam de tamanho",
+        "Description[ru]": "При изменении формы всплывающих подсказок или уведомлений они плавно растягиваются или сжимаются",
+        "Description[sk]": "Animácia krížového prelínania, keď sa zmení geometria nápovedy k nástrojom alebo oznámení",
+        "Description[sl]": "Animacija navzkrižnega preliva, ko se orodnim namigom ali obvestilom spremeni geometrija",
+        "Description[ta]": "கருவித்துப்புகளின் மற்றும் அறிவிப்புகளின் அளவை மாற்றும்போது அவற்றை மங்கசெய்து மாற்றும்",
+        "Description[tr]": "Araç ipuçları veya bildirimler boyutları değiştiğinde gösterilecek çapraz geçiş canlandırması",
+        "Description[uk]": "Анімація зі зміною освітленості під час зміни геометрії панелей підказок і сповіщень",
+        "Description[vi]": "Hiệu ứng động mờ dần khi các chú giải hay thông báo thay đổi hình dạng",
+        "Description[x-test]": "xxCross fade animation when Tooltips or Notifications change their geometryxx",
+        "Description[zh_CN]": "工具提示/通知信息框大小变化时呈现过渡动效",
+        "Description[zh_TW]": "當工具提示或通知變更位置時交錯淡出動畫",
+        "EnabledByDefault": true,
+        "Icon": "preferences-system-windows-effect-morphingpopups",
+        "Id": "morphingpopups",
+        "License": "GPL",
+        "Name": "Morphing Popups",
+        "Name[ar]": "المنبثقات المتحورة",
+        "Name[be]": "Трансфармаванне выплыўных акон",
+        "Name[bg]": "Променящи се изскачащи прозорци",
+        "Name[ca@valencia]": "Missatges emergents en metamorfosi",
+        "Name[ca]": "Missatges emergents en metamorfosi",
+        "Name[cs]": "Morfující vyskakovací okna",
+        "Name[de]": "Verformende Aufklappfenster",
+        "Name[en_GB]": "Morphing Popups",
+        "Name[eo]": "Morphing Ŝprucfenestroj",
+        "Name[es]": "Transformación de ventanas emergentes",
+        "Name[eu]": "Eraldatzen diren gainerakorrak",
+        "Name[fi]": "Ponnahdusikkunoiden muodonmuutos",
+        "Name[fr]": "Effectuer un fondu enchaîné des infobulles",
+        "Name[gl]": "Xanelas emerxentes cambiantes",
+        "Name[he]": "חלוניות צצות משתנות",
+        "Name[hu]": "Alakváltó felugrók",
+        "Name[ia]": "Popups de Morphing",
+        "Name[is]": "Myndbrigði svarglugga",
+        "Name[it]": "Finestre a comparsa che si trasformano",
+        "Name[ja]": "変形するポップアップ",
+        "Name[ka]": "ტრანსფორმირებადი მხტუნარები",
+        "Name[ko]": "변형되는 팝업",
+        "Name[lt]": "Persikeičiantys iškylantieji langai",
+        "Name[nl]": "Morphing pop-ups",
+        "Name[nn]": "Formendring for sprettoppvindauge",
+        "Name[pl]": "Zmiennokształtne okna",
+        "Name[pt]": "Janelas Mutantes",
+        "Name[pt_BR]": "Mensagens com mudança de forma",
+        "Name[ro]": "Indicii în schimbare",
+        "Name[ru]": "Анимация преобразования всплывающих окон",
+        "Name[sk]": "Postupne sa meniace vyskakovacie okná",
+        "Name[sl]": "Pogovorna okna pretvorb",
+        "Name[ta]": "தெரித்தெழுபவை திரிவது",
+        "Name[tr]": "Dönüşen Açılır Pencereler",
+        "Name[uk]": "Аморфні контекстні панелі",
+        "Name[vi]": "Ô bật lên biến dạng",
+        "Name[x-test]": "xxMorphing Popupsxx",
+        "Name[zh_CN]": "气泡大小渐变动画",
+        "Name[zh_TW]": "交錯彈出視窗"
+    },
+    "X-KDE-Ordering": 60,
+    "X-KWin-Video-Url": "https://files.kde.org/plasma/kwin/effect-videos/morphingpopups.ogv",
+    "X-Plasma-API": "javascript"
+}

kwin/effects/scale/contents/code/main.js

@@ -0,0 +1,176 @@
+/*
+    KWin - the KDE window manager
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2018, 2021 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+"use strict";
+
+const blacklist = [
+    // The logout screen has to be animated only by the logout effect.
+    "ksmserver ksmserver",
+    "ksmserver-logout-greeter ksmserver-logout-greeter",
+
+    // KDE Plasma splash screen has to be animated only by the login effect.
+    "ksplashqml ksplashqml",
+
+    // Spectacle needs to be blacklisted in order to stay out of its own screenshots.
+    "spectacle spectacle", // x11
+    "spectacle org.kde.spectacle", // wayland
+];
+
+class ScaleEffect {
+    constructor() {
+        effect.configChanged.connect(this.loadConfig.bind(this));
+        effect.animationEnded.connect(this.cleanupForcedRoles.bind(this));
+        effects.windowAdded.connect(this.slotWindowAdded.bind(this));
+        effects.windowClosed.connect(this.slotWindowClosed.bind(this));
+        effects.windowDataChanged.connect(this.slotWindowDataChanged.bind(this));
+
+        this.loadConfig();
+    }
+
+    loadConfig() {
+        const defaultDuration = 200;
+        const duration = effect.readConfig("Duration", defaultDuration) || defaultDuration;
+        this.duration = animationTime(duration);
+        this.inScale = effect.readConfig("InScale", 0.8);
+        this.outScale = effect.readConfig("OutScale", 0.8);
+    }
+
+    static isScaleWindow(window) {
+        // We don't want to animate most of plasmashell's windows, yet, some
+        // of them we want to, for example, Task Manager Settings window.
+        // The problem is that all those window share single window class.
+        // So, the only way to decide whether a window should be animated is
+        // to use a heuristic: if a window has decoration, then it's most
+        // likely a dialog or a settings window so we have to animate it.
+        if (window.windowClass == "plasmashell plasmashell"
+                || window.windowClass == "plasmashell org.kde.plasmashell") {
+            return window.hasDecoration;
+        }
+
+        if (blacklist.indexOf(window.windowClass) != -1) {
+            return false;
+        }
+
+        if (window.hasDecoration) {
+            return true;
+        }
+
+        // Don't animate combobox popups, tooltips, popup menus, etc.
+        if (window.popupWindow) {
+            return false;
+        }
+
+        // Dont't animate the outline and the screenlocker as it looks bad.
+        if (window.lockScreen || window.outline) {
+            return false;
+        }
+
+        // Override-redirect windows are usually used for user interface
+        // concepts that are not expected to be animated by this effect.
+        if (!window.managed) {
+            return false;
+        }
+
+        return window.normalWindow || window.dialog;
+    }
+
+    setupForcedRoles(window) {
+        window.setData(Effect.WindowForceBackgroundContrastRole, true);
+        window.setData(Effect.WindowForceBlurRole, true);
+    }
+
+    cleanupForcedRoles(window) {
+        window.setData(Effect.WindowForceBackgroundContrastRole, null);
+        window.setData(Effect.WindowForceBlurRole, null);
+    }
+
+    slotWindowAdded(window) {
+        if (effects.hasActiveFullScreenEffect) {
+            return;
+        }
+        if (!ScaleEffect.isScaleWindow(window)) {
+            return;
+        }
+        if (!window.visible) {
+            return;
+        }
+        if (effect.isGrabbed(window, Effect.WindowAddedGrabRole)) {
+            return;
+        }
+        this.setupForcedRoles(window);
+        window.scaleInAnimation = animate({
+            window: window,
+            curve: QEasingCurve.OutCubic,
+            duration: this.duration,
+            animations: [
+                {
+                    type: Effect.Scale,
+                    from: this.inScale
+                },
+                {
+                    type: Effect.Opacity,
+                    from: 0
+                }
+            ]
+        });
+    }
+
+    slotWindowClosed(window) {
+        if (effects.hasActiveFullScreenEffect) {
+            return;
+        }
+        if (!ScaleEffect.isScaleWindow(window)) {
+            return;
+        }
+        if (!window.visible || window.skipsCloseAnimation) {
+            return;
+        }
+        if (effect.isGrabbed(window, Effect.WindowClosedGrabRole)) {
+            return;
+        }
+        if (window.scaleInAnimation) {
+            cancel(window.scaleInAnimation);
+            delete window.scaleInAnimation;
+        }
+        this.setupForcedRoles(window);
+        window.scaleOutAnimation = animate({
+            window: window,
+            curve: QEasingCurve.InCubic,
+            duration: this.duration,
+            animations: [
+                {
+                    type: Effect.Scale,
+                    to: this.outScale
+                },
+                {
+                    type: Effect.Opacity,
+                    to: 0
+                }
+            ]
+        });
+    }
+
+    slotWindowDataChanged(window, role) {
+        if (role == Effect.WindowAddedGrabRole) {
+            if (window.scaleInAnimation && effect.isGrabbed(window, role)) {
+                cancel(window.scaleInAnimation);
+                delete window.scaleInAnimation;
+                this.cleanupForcedRoles(window);
+            }
+        } else if (role == Effect.WindowClosedGrabRole) {
+            if (window.scaleOutAnimation && effect.isGrabbed(window, role)) {
+                cancel(window.scaleOutAnimation);
+                delete window.scaleOutAnimation;
+                this.cleanupForcedRoles(window);
+            }
+        }
+    }
+}
+
+new ScaleEffect();

kwin/effects/scale/contents/config/main.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
+                          http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >
+    <kcfgfile name=""/>
+    <group name="">
+        <entry name="Duration" type="UInt">
+            <default>0</default>
+        </entry>
+        <entry name="InScale" type="Double">
+            <default>0.8</default>
+        </entry>
+        <entry name="OutScale" type="Double">
+            <default>0.8</default>
+        </entry>
+    </group>
+</kcfg>

kwin/effects/scale/contents/ui/config.ui

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ScaleEffectConfig</class>
+ <widget class="QWidget" name="ScaleEffectConfig">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>455</width>
+    <height>177</height>
+   </rect>
+  </property>
+  <layout class="QFormLayout" name="formLayout">
+   <item row="1" column="0">
+    <widget class="QLabel" name="label_Duration">
+     <property name="text">
+      <string>Duration:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QSpinBox" name="kcfg_Duration">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="specialValueText">
+      <string>Default</string>
+     </property>
+     <property name="suffix">
+      <string> milliseconds</string>
+     </property>
+     <property name="maximum">
+      <number>9999</number>
+     </property>
+     <property name="singleStep">
+      <number>5</number>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QLabel" name="label_InScale">
+     <property name="text">
+      <string>Window open scale:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="label_OutScale">
+     <property name="text">
+      <string>Window close scale:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="1">
+    <widget class="QDoubleSpinBox" name="kcfg_InScale">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="maximum">
+      <double>9.990000000000000</double>
+     </property>
+     <property name="singleStep">
+      <double>0.050000000000000</double>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="QDoubleSpinBox" name="kcfg_OutScale">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="maximum">
+      <double>9.990000000000000</double>
+     </property>
+     <property name="singleStep">
+      <double>0.050000000000000</double>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

kwin/effects/scale/metadata.json

@@ -0,0 +1,145 @@
+{
+    "KPackageStructure": "KWin/Effect",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "vlad.zahorodnii@kde.org",
+                "Name": "Vlad Zahorodnii",
+                "Name[ar]": "فلاد زاهورودني",
+                "Name[az]": "Vlad Zahorodnii",
+                "Name[be]": "Vlad Zahorodnii",
+                "Name[bg]": "Vlad Zahorodnii",
+                "Name[ca@valencia]": "Vlad Zahorodnii",
+                "Name[ca]": "Vlad Zahorodnii",
+                "Name[cs]": "Vlad Zahorodnii",
+                "Name[de]": "Vlad Zahorodnii",
+                "Name[en_GB]": "Vlad Zahorodnii",
+                "Name[eo]": "Vlad Zahorodnii",
+                "Name[es]": "Vlad Zahorodnii",
+                "Name[et]": "Vlad Zahorodnii",
+                "Name[eu]": "Vlad Zahorodnii",
+                "Name[fi]": "Vlad Zahorodnii",
+                "Name[fr]": "Vlad Zahorodnii",
+                "Name[gl]": "Vlad Zahorodnii.",
+                "Name[he]": "ולאד זהורודני",
+                "Name[hu]": "Vlad Zahorodnii",
+                "Name[ia]": "Vlad Zahorodnii",
+                "Name[id]": "Vlad Zahorodnii",
+                "Name[is]": "Vlad Zahorodnii",
+                "Name[it]": "Vlad Zahorodnii",
+                "Name[ja]": "Vlad Zahorodnii",
+                "Name[ka]": "Vlad Zahorodnii",
+                "Name[ko]": "Vlad Zahorodnii",
+                "Name[lt]": "Vlad Zahorodnii",
+                "Name[nl]": "Vlad Zahorodnii",
+                "Name[nn]": "Vlad Zahorodnii",
+                "Name[pl]": "Vlad Zahorodnii",
+                "Name[pt]": "Vlad Zahorodnii",
+                "Name[pt_BR]": "Vlad Zahorodnii",
+                "Name[ro]": "Vlad Zahorodnii",
+                "Name[ru]": "Влад Загородний",
+                "Name[sk]": "Vlad Zahorodnii",
+                "Name[sl]": "Vlad Zahorodnii",
+                "Name[sv]": "Vlad Zahorodnii",
+                "Name[ta]": "விலாட் ஜாஹொரிடுனி",
+                "Name[tr]": "Vlad Zahorodnii",
+                "Name[uk]": "Влад Загородній",
+                "Name[vi]": "Vlad Zahorodnii",
+                "Name[x-test]": "xxVlad Zahorodniixx",
+                "Name[zh_CN]": "Vlad Zahorodnii",
+                "Name[zh_TW]": "Vlad Zahorodnii"
+            }
+        ],
+        "Category": "Window Open/Close Animation",
+        "Description": "Make windows smoothly scale in and out when they are shown or hidden",
+        "Description[ar]": "اجعل النوافذ تكبر وتصغر بنعومة عند إظهاراها وإخفائها",
+        "Description[be]": "Плаўнае павелічэнне або памяншэнне акон пры з'яўленні або знікненні",
+        "Description[bg]": "Плавно увеличаване и намаляване на мащаба на прозорците при показване или скриване",
+        "Description[ca@valencia]": "Fa que les finestres entren o isquen volant quan es mostren o s'oculten",
+        "Description[ca]": "Fa que les finestres entrin o surtin volant quan es mostren o s'oculten",
+        "Description[cs]": "Nechá okna plynule zvětšit/zmenšit se, pokud jsou zobrazeny resp. skryty",
+        "Description[de]": "Vergrößert und verkleinert Fenster sanft beim Ein- oder Ausblenden",
+        "Description[en_GB]": "Make windows smoothly scale in and out when they are shown or hidden",
+        "Description[eo]": "Fari fenestrojn glate grimpi en kaj eksteren kiam ili estas montritaj aŭ kaŝitaj",
+        "Description[es]": "Hacer que las ventanas se escalen suavemente al mostrarlas y al ocultarlas",
+        "Description[et]": "Skaleerib aknaid sujuvalt, kui need peidetakse või nähtavale tuuakse",
+        "Description[eu]": "Leihoak emeki barrura eta kanpora eskalatu haiek erakutsi edo ezkutatzean",
+        "Description[fi]": "Skaalaa ponnahdusikkunat pehmeästi näytölle tai näytöltä",
+        "Description[fr]": "Faire un re-dimensionnement en avant ou en arrière des fenêtres lorsqu'elles sont affichées ou masquées",
+        "Description[gl]": "Facer que as xanelas crezan ou decrezan suavemente cando se mostran ou agochan.",
+        "Description[he]": "הפיכת הגדלת והקטנת קנה מידה של חלונות כשהם מוצגים או מוסתרים",
+        "Description[hu]": "Az ablakok folyamatosan méretezett módon lesznek elrejtve és megjelenítve",
+        "Description[ia]": "Face que fenestras pote dulcemente scalar intra e foras quando illos es monstrate o celate",
+        "Description[is]": "Láta glugga stækka og minnka inn og út mjúklega þegar þeir eru birtir eða faldir",
+        "Description[it]": "Ridimensiona le finestre dolcemente quando sono mostrate o nascoste",
+        "Description[ja]": "ウィンドウが表示/非表示時スムーズに拡大/縮小します",
+        "Description[ka]": "ფანჯრების რბილად გადიდება/დაპატარავება მათი ჩვენება/დამალვისას",
+        "Description[ko]": "창이 보여지거나 감춰질 때 부드러운 크기 조정을 사용합니다",
+        "Description[lt]": "Padaryti, kad langai glotniai keistų dydį, kai yra rodomi ar slepiami",
+        "Description[nl]": "Laat vensters vloeiend kleiner en groter schalen als ze worden getoond of verborgen",
+        "Description[nn]": "Skaler vindauge jamt inn og ut når dei vert viste eller gøymde",
+        "Description[pl]": "Okna gładko pomniejszają się przy otwieraniu i powiększają przy zamykaniu",
+        "Description[pt]": "Faz com que as janelas mudem suavemente de tamanho quando aparecem ou desaparecem",
+        "Description[ro]": "Face ferestrele să se scaleze lin când sunt arătate sau ascunse",
+        "Description[ru]": "Плавное увеличение или уменьшение окон при их появлении и скрытии",
+        "Description[sk]": "Plynulé zväčšovanie a zmenšovanie okien pri ich zobrazení alebo skrytí",
+        "Description[sl]": "Okna naj gladko spreminjajo velikost (navzven in navznoter), ko se prikažejo ali skrijejo",
+        "Description[ta]": "சாளரங்களை காட்டும்போதும் மறைக்கும்போதும் அவற்றின் அளவை படிப்படியாக மாற்றுவதுபோல் அசைவூட்டும்",
+        "Description[tr]": "Pencereler gösterilirken veya gizlenirken pürüzsüzce ölçeklendirilmelerini sağlar",
+        "Description[uk]": "Плавне масштабування вікон при появі або приховуванні",
+        "Description[vi]": "Làm cửa sổ đổi cỡ một cách êm dịu khi chúng hiện ra và biến mất",
+        "Description[x-test]": "xxMake windows smoothly scale in and out when they are shown or hiddenxx",
+        "Description[zh_CN]": "窗口显示/隐藏时呈现平滑缩放过渡动效",
+        "Description[zh_TW]": "讓視窗在顯示或隱藏的時候平滑地以比例縮放方式出現或消失",
+        "EnabledByDefault": true,
+        "Icon": "preferences-system-windows-effect-scale",
+        "Id": "scale",
+        "License": "GPL",
+        "Name": "Scale",
+        "Name[ar]": "حجّم",
+        "Name[be]": "Маштабаванне",
+        "Name[bg]": "Мащабиране",
+        "Name[ca@valencia]": "Escala",
+        "Name[ca]": "Escala",
+        "Name[cs]": "Měřítko",
+        "Name[de]": "Skalieren",
+        "Name[en_GB]": "Scale",
+        "Name[eo]": "Skalo",
+        "Name[es]": "Escalar",
+        "Name[et]": "Skaleerimine",
+        "Name[eu]": "Eskalatu",
+        "Name[fi]": "Skaalaus",
+        "Name[fr]": "Échelle",
+        "Name[gl]": "Escala",
+        "Name[he]": "קנה מידה",
+        "Name[hu]": "Méretezés",
+        "Name[ia]": "Scala",
+        "Name[is]": "Kvarði",
+        "Name[it]": "Scala",
+        "Name[ja]": "スケール",
+        "Name[ka]": "მასშტაბირება",
+        "Name[ko]": "크기 조정",
+        "Name[lt]": "Mastelis",
+        "Name[nl]": "Schaal",
+        "Name[nn]": "Skalering",
+        "Name[pl]": "Skalowanie",
+        "Name[pt]": "Escala",
+        "Name[pt_BR]": "Escala",
+        "Name[ro]": "Scalare",
+        "Name[ru]": "Масштабирование",
+        "Name[sk]": "Meniť mierku",
+        "Name[sl]": "Spremeni velikost",
+        "Name[ta]": "அளவுமாற்று",
+        "Name[tr]": "Ölçeklendir",
+        "Name[uk]": "Масштабування",
+        "Name[vi]": "Đổi cỡ",
+        "Name[x-test]": "xxScalexx",
+        "Name[zh_CN]": "按比例缩放",
+        "Name[zh_TW]": "縮放"
+    },
+    "X-KDE-ConfigModule": "kcm_kwin4_genericscripted",
+    "X-KDE-Ordering": 60,
+    "X-KWin-Config-TranslationDomain": "kwin",
+    "X-KWin-Exclusive-Category": "toplevel-open-close-animation",
+    "X-Plasma-API": "javascript"
+}

kwin/effects/smodpeekeffect/contents/code/main.js

@@ -0,0 +1,143 @@
+/*
+ *    KWin - the KDE window manager
+ *    This file is part of the KDE project.
+ *
+ *    SPDX-FileCopyrightText: 2015 Thomas Lübking <thomas.luebking@gmail.com>
+ *
+ *    SPDX-License-Identifier: GPL-2.0-or-later
+ */
+/*global effect, effects, animate, animationTime, Effect, QEasingCurve */
+
+"use strict";
+
+var badBadWindowsEffect = {
+    duration: animationTime(450),
+    showingDesktop: false,
+    loadConfig: function () {
+        badBadWindowsEffect.duration = animationTime(450);
+    },
+    setShowingDesktop: function (showing) {
+        badBadWindowsEffect.showingDesktop = showing;
+
+    },
+    offToCorners: function (showing, frozenTime) {
+        if (typeof frozenTime === "undefined") {
+            frozenTime = -1;
+        }
+        var stackingOrder = effects.stackingOrder;
+        var screenGeo = effects.virtualScreenGeometry;
+        var xOffset = screenGeo.width / 16;
+        var yOffset = screenGeo.height / 16;
+
+            for (var i = 0; i < stackingOrder.length; ++i) {
+                var w = stackingOrder[i];
+
+                if (!w.managed && w.windowClass == "kwin_x11 kwin" && w.caption == "" && !w.hasDecoration) continue;
+                if (!w.hiddenByShowDesktop && !w.normalWindow) {
+                    continue;
+                }
+
+                // ignore invisible windows and such that do not have to be restored
+                if (!w.visible) {
+                    if (w.offToCornerId) {
+                        // if it was visible when the effect was activated delete its animation data
+                        cancel(w.offToCornerId);
+                        delete w.offToCornerId;
+                        delete w.apertureCorner;
+                    }
+                    continue;
+                }
+
+                // Don't touch docks
+                if (w.dock) {
+                    continue;
+                }
+
+                //console.log("Before: " + JSON.stringify(w));
+
+                if(showing) {
+                    if (!w.offToCornerId || !freezeInTime(w.offToCornerId, frozenTime)) {
+
+                        w.offToCornerId = set({
+                            window: w,
+                            duration: badBadWindowsEffect.duration,
+                            curve: QEasingCurve.InOutQuad,
+                            //delay: 10,
+                            animations: [{
+                                type: Effect.Opacity,
+                                to: 0.0,
+                                frozenTime: frozenTime
+
+                            }]
+                        });
+                        //console.log("script");
+                    }
+                } else {
+                    if (!w.visible) {
+                        cancel(w.offToCornerId);
+                        delete w.offToCornerId;
+                        delete w.apertureCorner;
+                        // This if the window was invisible and has become visible in the meantime
+                    } else if (!w.offToCornerId || !redirect(w.offToCornerId, Effect.Backward) || !freezeInTime(w.offToCornerId, frozenTime)) {
+                        /*animate({
+                            window: w,
+                            duration: badBadWindowsEffect.duration,
+                            curve: QEasingCurve.Linear,
+                            animations: [{
+                                type: Effect.Opacity,
+                                from: 0.0
+                            }]
+                        });*/
+                    }
+                }
+            }
+    },
+    animationEnded: function (w, a, meta) {
+        // After the animation that closes the effect, reset all the parameters
+        if (!badBadWindowsEffect.showingDesktop && w.offToCornerId != null) {
+            cancel(w.offToCornerId);
+            delete w.offToCornerId;
+            delete w.apertureCorner;
+        }
+    },
+    realtimeScreenEdgeCallback: function (border, deltaProgress, effectScreen) {
+        if (!deltaProgress || !effectScreen) {
+            badBadWindowsEffect.offToCorners(badBadWindowsEffect.showingDesktop, -1);
+            return;
+        }
+        let time = 0;
+
+        switch (border) {
+            case KWin.ElectricTop:
+            case KWin.ElectricBottom:
+                time = Math.min(1, (Math.abs(deltaProgress.height) / (effectScreen.geometry.height / 2))) * badBadWindowsEffect.duration;
+                break;
+            case KWin.ElectricLeft:
+            case KWin.ElectricRight:
+                time = Math.min(1, (Math.abs(deltaProgress.width) / (effectScreen.geometry.width / 2))) * badBadWindowsEffect.duration;
+                break;
+            default:
+                return;
+        }
+        if (badBadWindowsEffect.showingDesktop) {
+            time = badBadWindowsEffect.duration - time;
+        }
+
+        badBadWindowsEffect.offToCorners(true, time)
+    },
+    init: function () {
+        badBadWindowsEffect.loadConfig();
+        effects.showingDesktopChanged.connect(badBadWindowsEffect.setShowingDesktop);
+        effects.showingDesktopChanged.connect(badBadWindowsEffect.offToCorners);
+        effect.animationEnded.connect(badBadWindowsEffect.animationEnded);
+
+        //let edges = effect.touchEdgesForAction("show-desktop");
+
+        /*for (let i in edges) {
+            let edge = parseInt(edges[i]);
+            registerRealtimeScreenEdge(edge, badBadWindowsEffect.realtimeScreenEdgeCallback);
+        }*/
+    }
+};
+
+badBadWindowsEffect.init();

kwin/effects/smodpeekeffect/metadata.json

@@ -0,0 +1,20 @@
+{
+    "KPackageStructure": "KWin/Effect",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Name": "Souris"
+            }
+        ],
+        "Category": "Show Desktop Animation",
+        "Description": "Fade windows to reveal the desktop",
+        "EnabledByDefault": false,
+        "Id": "smodpeekeffect",
+        "License": "GPL",
+        "Name": "SMOD Peek"
+    },
+    "X-KDE-Ordering": 100,
+    "X-KWin-Exclusive-Category": "show-desktop",
+    "X-Plasma-API": "javascript",
+    "X-Plasma-MainScript": "code/main.js"
+}

kwin/effects/squash/contents/code/main.js

@@ -0,0 +1,196 @@
+/*
+    This file is part of the KDE project.
+
+    SPDX-FileCopyrightText: 2018 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
+
+    SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+"use strict";
+
+var squashEffect = { // 300 ms
+    duration: animationTime(250),
+    loadConfig: function () {
+        squashEffect.duration = animationTime(250);
+    },
+    slotWindowMinimized: function (window) {
+        if (effects.hasActiveFullScreenEffect) {
+            return;
+        }
+
+        // If the window doesn't have an icon in the task manager,
+        // don't animate it.
+        var iconRect = window.iconGeometry;
+        if (iconRect.width == 0 || iconRect.height == 0) {
+            return;
+        }
+
+        if (window.unminimizeAnimation) {
+            if (redirect(window.unminimizeAnimation, Effect.Backward)) {
+                return;
+            }
+            cancel(window.unminimizeAnimation);
+            delete window.unminimizeAnimation;
+        }
+
+        if (window.minimizeAnimation) {
+            if (redirect(window.minimizeAnimation, Effect.Forward)) {
+                return;
+            }
+            cancel(window.minimizeAnimation);
+        }
+
+        var windowRect = window.geometry;
+
+        window.minimizeAnimation = animate({
+            window: window,
+            curve: QEasingCurve.Linear,
+            duration: squashEffect.duration*1.1,
+            animations: [
+                {
+                    type: Effect.Size,
+                    from: {
+                        value1: windowRect.width,
+                        value2: windowRect.height
+                    },
+                    to: {
+                        value1: iconRect.width,
+                        value2: iconRect.height
+                    }
+                },
+                {
+                    type: Effect.Translation,
+                    from: {
+                        value1: 0.0,
+                        value2: 0.0
+                    },
+                    to: {
+                        value1: iconRect.x - windowRect.x -
+                            (windowRect.width - iconRect.width) / 2,
+                        value2: iconRect.y - windowRect.y -
+                            (windowRect.height - iconRect.height) / 2,
+                    }
+                },
+                {
+                    type: Effect.Opacity,
+                    from: 0.9,
+                    to: 0.0
+                },
+                /*{
+                    type: Effect.Rotation,
+                    meta: {
+                        axis: 1
+                    },
+                    from: 0,
+                    to: 0.262
+                },
+                {
+                    type: Effect.Rotation,
+                    meta: {
+                        axis: 2
+                    },
+                    from: 0,
+                    to: 0.262
+                }*/
+
+            ]
+        });
+    },
+    slotWindowUnminimized: function (window) {
+        if (effects.hasActiveFullScreenEffect) {
+            return;
+        }
+
+        // If the window doesn't have an icon in the task manager,
+        // don't animate it.
+        var iconRect = window.iconGeometry;
+        if (iconRect.width == 0 || iconRect.height == 0) {
+            return;
+        }
+
+        if (window.minimizeAnimation) {
+            if (redirect(window.minimizeAnimation, Effect.Backward)) {
+                return;
+            }
+            cancel(window.minimizeAnimation);
+            delete window.minimizeAnimation;
+        }
+
+        if (window.unminimizeAnimation) {
+            if (redirect(window.unminimizeAnimation, Effect.Forward)) {
+                return;
+            }
+            cancel(window.unminimizeAnimation);
+        }
+
+        window.setData(Effect.WindowForceBlurRole, true);
+
+        var windowRect = window.geometry;
+
+        window.unminimizeAnimation = animate({
+            window: window,
+            curve: QEasingCurve.Linear,
+            duration: squashEffect.duration,
+            animations: [
+
+                /*{
+                    type: Effect.Rotation,
+                    axis: 0,
+                    sourceAnchor: 0,
+                    targetAnchor: 1,
+                    from: 1,
+                    to: 0.5
+                },*/
+                {
+                    type: Effect.Size,
+                    from: {
+                        value1: iconRect.width,
+                        value2: iconRect.height
+                    },
+                    to: {
+                        value1: windowRect.width,
+                        value2: windowRect.height
+                    }
+                },
+                {
+                    type: Effect.Translation,
+                    from: {
+                        value1: iconRect.x - windowRect.x -
+                            (windowRect.width - iconRect.width) / 2,
+                        value2: iconRect.y - windowRect.y -
+                            (windowRect.height - iconRect.height) / 2,
+                    },
+                    to: {
+                        value1: 0.0,
+                        value2: 0.0
+                    }
+                },
+                {
+                    type: Effect.Opacity,
+                    from: 0.0,
+                    to: 1.0
+                }
+
+            ]
+        });
+    },
+    slotWindowAdded: function (window) {
+        window.minimizedChanged.connect(() => {
+            if (window.minimized) {
+                squashEffect.slotWindowMinimized(window);
+            } else {
+                squashEffect.slotWindowUnminimized(window);
+            }
+        });
+    },
+    init: function () {
+        effect.configChanged.connect(squashEffect.loadConfig);
+
+        effects.windowAdded.connect(squashEffect.slotWindowAdded);
+        for (const window of effects.stackingOrder) {
+            squashEffect.slotWindowAdded(window);
+        }
+    }
+};
+
+squashEffect.init();

kwin/effects/squash/metadata.json

@@ -0,0 +1,138 @@
+{
+    "KPackageStructure": "KWin/Effect",
+    "KPlugin": {
+        "Authors": [
+            {
+                "Email": "rivolaks@hot.ee, vlad.zahorodnii@kde.org",
+                "Name": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ar]": "ريفو لاكس، فلاد زاهورودني",
+                "Name[be]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[bg]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ca@valencia]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ca]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[cs]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[de]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[en_GB]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[eo]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[es]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[et]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[eu]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[fi]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[fr]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[gl]": "Rivo Laks e Vlad Zahorodnii.",
+                "Name[he]": "ריבו לאקס, ולאד זוהורוני",
+                "Name[hu]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ia]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[is]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[it]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ja]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ka]": "Vlad Zahorodnii",
+                "Name[ko]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[lt]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[nl]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[nn]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[pl]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[pt]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ro]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ru]": "Rivo Laks, Влад Загородний",
+                "Name[sk]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[sl]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[ta]": "ரிவோ லாக்சு, விலாட் ஜாஹொரிடுனி",
+                "Name[tr]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[uk]": "Rivo Laks, Влад Завгородній",
+                "Name[vi]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[x-test]": "xxRivo Laks, Vlad Zahorodniixx",
+                "Name[zh_CN]": "Rivo Laks, Vlad Zahorodnii",
+                "Name[zh_TW]": "Rivo Laks, Vlad Zahorodnii"
+            }
+        ],
+        "Category": "Appearance",
+        "Description": "Squash windows when they are minimized",
+        "Description[ar]": "تنكمش النوافذ عند تصغيرها",
+        "Description[be]": "Сціскаць вокны, калі яны згорнутыя",
+        "Description[bg]": "Свиване на прозорците при минимизиране",
+        "Description[ca@valencia]": "Amuntega les finestres quan estan minimitzades",
+        "Description[ca]": "Amuntega les finestres quan estan minimitzades",
+        "Description[de]": "Quetscht Fenster beim Minimieren zusammen",
+        "Description[en_GB]": "Squash windows when they are minimised",
+        "Description[eo]": "Squash fenestroj kiam ili estas minimumigitaj",
+        "Description[es]": "Aplastar las ventanas cuando se minimizan",
+        "Description[et]": "Minimeeritud akende taas üleshüpitamine",
+        "Description[eu]": "Zanpatu leihoak haiek ikonotzen direnean",
+        "Description[fi]": "Litistä pienennettävät ikkunat",
+        "Description[fr]": "Déformer les fenêtres lors de leur minimisation",
+        "Description[gl]": "Xuntar as xanelas cando estean minimizadas.",
+        "Description[he]": "למעוך את החלונות כשהם ממוזערים",
+        "Description[hu]": "Összevonja az ablakokat, amikor minimalizálódnak",
+        "Description[ia]": "Deforma fenestras durante que illes es minimisate",
+        "Description[is]": "Kremja saman glugga þegar þeir eru faldir",
+        "Description[it]": "Schiaccia le finestre quando vengono minimizzate",
+        "Description[ja]": "最小化されたときウィンドウが縮小します",
+        "Description[ka]": "ფანჯრების შეჭყლეტა ჩაკეცვისა დროს",
+        "Description[ko]": "창을 최소화할 때 압축시킵니다",
+        "Description[lt]": "Sutraiškyti langus, kai jie suskleidžiami",
+        "Description[nl]": "Krimp vensters wanneer ze geminimaliseerd zijn",
+        "Description[nn]": "Skvis vindauge når dei vert minimerte",
+        "Description[pl]": "Ściąga okna przy ich minimalizacji",
+        "Description[pt]": "Deformar as janelas quando são minimizadas",
+        "Description[ro]": "Strivește ferestrele când sunt minimizate",
+        "Description[ru]": "Сжатие окна при сворачивании",
+        "Description[sk]": "Stlačenie okien, keď sú minimalizované",
+        "Description[sl]": "Skrči okna, ko so pomanjšana",
+        "Description[ta]": "சாளரங்களை ஒதுக்கும்போது அவற்றை நசுக்குவது போல் அசைவூட்டும்",
+        "Description[tr]": "Pencereler simge durumuna küçültüldüğünde onları tıkıştır",
+        "Description[uk]": "Складує вікна, якщо їх мінімізовано",
+        "Description[vi]": "Ép nhỏ cửa sổ khi thu nhỏ",
+        "Description[x-test]": "xxSquash windows when they are minimizedxx",
+        "Description[zh_CN]": "窗口最小化时绘制收缩过渡动画",
+        "Description[zh_TW]": "最小化視窗時擠壓它們",
+        "EnabledByDefault": true,
+        "Icon": "preferences-system-windows-effect-squash",
+        "Id": "squash",
+        "License": "GPL",
+        "Name": "Squash",
+        "Name[ar]": "الانكماش",
+        "Name[be]": "Сцісканне",
+        "Name[bg]": "Свиване",
+        "Name[ca@valencia]": "Amuntega",
+        "Name[ca]": "Amuntega",
+        "Name[de]": "Quetschen",
+        "Name[en_GB]": "Squash",
+        "Name[eo]": "Dispremi",
+        "Name[es]": "Aplastar",
+        "Name[et]": "Üleshüpe",
+        "Name[eu]": "Zanpatu",
+        "Name[fi]": "Litistys",
+        "Name[fr]": "Compresser",
+        "Name[gl]": "Xuntar",
+        "Name[he]": "מעיכה",
+        "Name[hu]": "Összevonás",
+        "Name[ia]": "Squash",
+        "Name[is]": "Kremja",
+        "Name[it]": "Schiaccia",
+        "Name[ja]": "縮小",
+        "Name[ka]": "დაჭმუჭნვა",
+        "Name[ko]": "압축",
+        "Name[lt]": "Sutraiškymas",
+        "Name[nl]": "Krimpen",
+        "Name[nn]": "Skvis",
+        "Name[pl]": "Ściąganie",
+        "Name[pt]": "Esmagar",
+        "Name[pt_BR]": "Achatar",
+        "Name[ro]": "Strivire",
+        "Name[ru]": "Сжатие",
+        "Name[sk]": "Stlačiť",
+        "Name[sl]": "Strni",
+        "Name[ta]": "நசுக்கு",
+        "Name[tr]": "Tıkıştır",
+        "Name[uk]": "Складування",
+        "Name[vi]": "Ép nhỏ",
+        "Name[x-test]": "xxSquashxx",
+        "Name[zh_CN]": "最小化过渡动画 (收缩)",
+        "Name[zh_TW]": "壓縮"
+    },
+    "X-KDE-Ordering": 60,
+    "X-KWin-Exclusive-Category": "minimize",
+    "X-KWin-Video-Url": "https://files.kde.org/plasma/kwin/effect-videos/minimize.ogv",
+    "X-Plasma-API": "javascript"
+}