🎉 Add dominat color extractor

2022-05-21 11:08:50 +02:00
5 changed files with 194 additions and 443 deletions
@@ -2,14 +2,13 @@

 ## [Burn My Windows 16](https://github.com/schneegans/Burn-My-Windows/releases/tag/v16)

-**Release Date:** 2022-05-21
+**Release Date:** TBD

 #### Enhancements

-* Many translation updates, including a completely new Arabic, Finnish, Korean, and Swedish translation. A BIG THANKS to all translators!
-* The shaders are now aware of the actual window size (e.g. excluding the area where the shadow is drawn). For instance, this **fixes the drawing of the effects outside the window bounds** for `libadwaita` apps.
-* Refactored how the size and opacity transitions of the window actors are set up. Effects can now only specify a desired actor scale which will not change during the animation. All dynamic scaling and fading must be implemented in the shaders now.
 * The standard uniforms of all shaders have been updated: The window size is now passed as a `vec2` and there is a new `bool uForOpening` which is set to `true` if a window-open animation is ongoing, to `false` otherwise.
+* Refactored how the size and opacity transitions of the window actors are set up. Effects can now only specify a desired actor scale which will not change during the animation. All dynamic scaling and fading must be implemented in the shaders now.
+* The shaders are now aware of the actual window size (e.g. excluding the area where the shadow is drawn). For instance, this fixes the drawing of the effects outside the window bounds for `libadwaita` apps.

 #### Bug Fixes

@@ -1,361 +0,0 @@
-# SOME DESCRIPTIVE TITLE.
-# Copyright (C) YEAR Simon Schneegans
-# This file is distributed under the same license as the burn-my-windows package.
-# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
-#
-msgid ""
-msgstr ""
-"Project-Id-Version: burn-my-windows\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-04-05 09:22+0200\n"
-"PO-Revision-Date: 2022-05-21 10:15+0000\n"
-"Last-Translator: Seong-ho Cho <darkcircle.0426@gmail.com>\n"
-"Language-Team: Korean <https://hosted.weblate.org/projects/burn-my-windows/"
-"core/ko/>\n"
-"Language: ko\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"Plural-Forms: nplurals=1; plural=0;\n"
-"X-Generator: Weblate 4.13-dev\n"
-
-#: prefs.js:112
-msgid "Effect Options"
-msgstr "효과 옵션"
-
-#: prefs.js:140
-msgid "Go Back"
-msgstr "뒤로 가기"
-
-#: prefs.js:182
-msgid "General Options"
-msgstr "일반 옵션"
-
-#: prefs.js:276
-msgid "Gold Sponsors"
-msgstr "골드 스폰서"
-
-#: prefs.js:279
-msgid "Silver Sponsors"
-msgstr "실버 스폰서"
-
-#: prefs.js:282
-msgid "Bronze Sponsors"
-msgstr "브론즈 스폰서"
-
-#: prefs.js:285
-msgid "Past Sponsors"
-msgstr "이전 스폰서"
-
-#. Translators: %s will be replaced by the effect's name.
-#: prefs.js:510
-#, javascript-format
-msgid "Preview for %s"
-msgstr "%s 미리 보기"
-
-#: prefs.js:532
-msgid "Close this Window to Preview the Effect!"
-msgstr "이 창을 닫아 효과를 확인해보세요!"
-
-#: src/BrokenGlass.js:57
-msgid "Broken Glass"
-msgstr "유리 깨짐"
-
-#: src/TVEffect.js:56
-msgid "TV Effect"
-msgstr "TV 효과"
-
-#: src/TRexAttack.js:56
-msgid "T-Rex Attack"
-msgstr "티라노 공격"
-
-#: src/SnapOfDisintegration.js:60
-msgid "Snap of Disintegration"
-msgstr "해체 영상"
-
-#: src/Wisps.js:55
-msgid "Wisps"
-msgstr "도깨비불"
-
-#: src/Fire.js:58
-msgid "Fire"
-msgstr "화염"
-
-#: src/Fire.js:130
-msgid "Default Fire"
-msgstr "기본 화염"
-
-#: src/Fire.js:140
-msgid "Hell Fire"
-msgstr "지옥 화염"
-
-#: src/Fire.js:150
-msgid "Dark and Smutty"
-msgstr "어둡고 찝찝함"
-
-#: src/Fire.js:160
-msgid "Cold Breeze"
-msgstr "냉랭한 바람"
-
-#: src/Fire.js:170
-msgid "Santa is Coming"
-msgstr "산타의 방문"
-
-#: src/Hexagon.js:53
-msgid "Hexagon"
-msgstr "육각형"
-
-#: src/EnergizeA.js:54
-msgid "Energize A"
-msgstr "에너자이즈 A"
-
-#: src/Apparition.js:57
-msgid "Apparition"
-msgstr "혼령"
-
-#: src/EnergizeB.js:54
-msgid "Energize B"
-msgstr "에너자이즈 B"
-
-#: src/Matrix.js:58
-msgid "Matrix"
-msgstr "매트릭스"
-
-#: resources/ui/common/main-menu.ui:6
-msgid "Visit Homepage"
-msgstr "홈페이지 방문"
-
-#: resources/ui/common/main-menu.ui:10
-msgid "View Changelog"
-msgstr "변경 이력 보기"
-
-#: resources/ui/common/main-menu.ui:16
-msgid "Report a Bug"
-msgstr "버그 보고"
-
-#: resources/ui/common/main-menu.ui:20
-msgid "Create an Effect"
-msgstr "효과 만들기"
-
-#: resources/ui/common/main-menu.ui:24
-msgid "Translate"
-msgstr "번역"
-
-#: resources/ui/common/main-menu.ui:28
-msgid "Donate"
-msgstr "기부"
-
-#: resources/ui/common/main-menu.ui:41
-msgid "About Burn-My-Windows"
-msgstr "Burn-My-Windows 정보"
-
-#: resources/ui/gtk4/Matrix.ui:24 resources/ui/gtk4/BrokenGlass.ui:24
-#: resources/ui/gtk4/Wisps.ui:24 resources/ui/gtk4/Fire.ui:49
-#: resources/ui/gtk4/SnapOfDisintegration.ui:24
-#: resources/ui/gtk4/TRexAttack.ui:24 resources/ui/gtk4/TVEffect.ui:24
-#: resources/ui/gtk4/EnergizeA.ui:24 resources/ui/gtk4/Hexagon.ui:24
-#: resources/ui/gtk4/EnergizeB.ui:24 resources/ui/gtk4/Apparition.ui:24
-#: resources/ui/gtk3/Wisps.ui:42 resources/ui/gtk3/Fire.ui:93
-#: resources/ui/gtk3/TVEffect.ui:35 resources/ui/gtk3/EnergizeA.ui:42
-#: resources/ui/gtk3/Hexagon.ui:49 resources/ui/gtk3/EnergizeB.ui:42
-#: resources/ui/gtk3/Apparition.ui:63
-msgid "Animation Time [ms]"
-msgstr "애니메이션 시간 [ms]"
-
-#: resources/ui/gtk4/Matrix.ui:52 resources/ui/gtk4/Matrix.ui:98
-#: resources/ui/gtk4/Matrix.ui:144 resources/ui/gtk4/Matrix.ui:190
-#: resources/ui/gtk4/Matrix.ui:224 resources/ui/gtk4/Matrix.ui:258
-#: resources/ui/gtk4/BrokenGlass.ui:52 resources/ui/gtk4/BrokenGlass.ui:98
-#: resources/ui/gtk4/BrokenGlass.ui:144 resources/ui/gtk4/BrokenGlass.ui:190
-#: resources/ui/gtk4/BrokenGlass.ui:244 resources/ui/gtk4/Wisps.ui:52
-#: resources/ui/gtk4/Wisps.ui:98 resources/ui/gtk4/Wisps.ui:132
-#: resources/ui/gtk4/Fire.ui:77 resources/ui/gtk4/Fire.ui:123
-#: resources/ui/gtk4/Fire.ui:169 resources/ui/gtk4/Fire.ui:222
-#: resources/ui/gtk4/Fire.ui:280 resources/ui/gtk4/TRexAttack.ui:52
-#: resources/ui/gtk4/TRexAttack.ui:98 resources/ui/gtk4/TRexAttack.ui:144
-#: resources/ui/gtk4/TRexAttack.ui:190 resources/ui/gtk4/TRexAttack.ui:224
-#: resources/ui/gtk4/TVEffect.ui:52 resources/ui/gtk4/TVEffect.ui:86
-#: resources/ui/gtk4/EnergizeA.ui:52 resources/ui/gtk4/EnergizeA.ui:98
-#: resources/ui/gtk4/EnergizeA.ui:132 resources/ui/gtk4/Hexagon.ui:52
-#: resources/ui/gtk4/Hexagon.ui:98 resources/ui/gtk4/Hexagon.ui:144
-#: resources/ui/gtk4/Hexagon.ui:178 resources/ui/gtk4/Hexagon.ui:212
-#: resources/ui/gtk4/Hexagon.ui:265 resources/ui/gtk4/EnergizeB.ui:52
-#: resources/ui/gtk4/EnergizeB.ui:98 resources/ui/gtk4/EnergizeB.ui:132
-#: resources/ui/gtk4/prefs.ui:166 resources/ui/gtk4/Apparition.ui:52
-#: resources/ui/gtk4/Apparition.ui:98 resources/ui/gtk4/Apparition.ui:144
-#: resources/ui/gtk4/Apparition.ui:190 resources/ui/gtk4/Apparition.ui:236
-#: resources/ui/gtk3/Wisps.ui:68 resources/ui/gtk3/Wisps.ui:117
-#: resources/ui/gtk3/Wisps.ui:160 resources/ui/gtk3/Fire.ui:119
-#: resources/ui/gtk3/Fire.ui:167 resources/ui/gtk3/Fire.ui:215
-#: resources/ui/gtk3/Fire.ui:277 resources/ui/gtk3/Fire.ui:345
-#: resources/ui/gtk3/TVEffect.ui:61 resources/ui/gtk3/TVEffect.ui:104
-#: resources/ui/gtk3/EnergizeA.ui:68 resources/ui/gtk3/EnergizeA.ui:117
-#: resources/ui/gtk3/EnergizeA.ui:160 resources/ui/gtk3/Hexagon.ui:75
-#: resources/ui/gtk3/Hexagon.ui:124 resources/ui/gtk3/Hexagon.ui:173
-#: resources/ui/gtk3/Hexagon.ui:216 resources/ui/gtk3/Hexagon.ui:259
-#: resources/ui/gtk3/Hexagon.ui:321 resources/ui/gtk3/EnergizeB.ui:68
-#: resources/ui/gtk3/EnergizeB.ui:117 resources/ui/gtk3/EnergizeB.ui:160
-#: resources/ui/gtk3/prefs.ui:219 resources/ui/gtk3/Apparition.ui:89
-#: resources/ui/gtk3/Apparition.ui:138 resources/ui/gtk3/Apparition.ui:187
-#: resources/ui/gtk3/Apparition.ui:236 resources/ui/gtk3/Apparition.ui:285
-msgid "Reset to Default Value"
-msgstr "기본값으로 초기화"
-
-#: resources/ui/gtk4/Matrix.ui:70 resources/ui/gtk4/BrokenGlass.ui:70
-#: resources/ui/gtk4/Wisps.ui:70 resources/ui/gtk4/Fire.ui:95
-#: resources/ui/gtk4/SnapOfDisintegration.ui:70
-#: resources/ui/gtk4/EnergizeA.ui:70 resources/ui/gtk4/Hexagon.ui:70
-#: resources/ui/gtk4/EnergizeB.ui:70 resources/ui/gtk3/Wisps.ui:91
-#: resources/ui/gtk3/Fire.ui:141 resources/ui/gtk3/EnergizeA.ui:91
-#: resources/ui/gtk3/Hexagon.ui:98 resources/ui/gtk3/EnergizeB.ui:91
-msgid "Scale"
-msgstr "비율 조정"
-
-#: resources/ui/gtk4/Matrix.ui:116 resources/ui/gtk4/Apparition.ui:70
-#: resources/ui/gtk3/Apparition.ui:112
-msgid "Randomness"
-msgstr "임의성 지수"
-
-#: resources/ui/gtk4/Matrix.ui:162
-msgid "Vertical Overshooting"
-msgstr "수직 오버슈팅"
-
-#: resources/ui/gtk4/Matrix.ui:208
-msgid "Trail Color"
-msgstr "끌림 자국 색상"
-
-#: resources/ui/gtk4/Matrix.ui:242
-msgid "Tip Color"
-msgstr "끄트머리 색상"
-
-#: resources/ui/gtk4/BrokenGlass.ui:116
-msgid "Gravity"
-msgstr "중력계수"
-
-#: resources/ui/gtk4/BrokenGlass.ui:162
-msgid "Blow Force"
-msgstr "타격 강도"
-
-#: resources/ui/gtk4/BrokenGlass.ui:212
-msgid "Shatter From Pointer Location"
-msgstr "포인터 위치에서 깨짐"
-
-#: resources/ui/gtk4/BrokenGlass.ui:221
-msgid ""
-"The shards will fly away from where your mouse pointer was when closing the "
-"window."
-msgstr "창을 닫을 때 마우스 포인터 위치에서 조각이 날아갑니다."
-
-#: resources/ui/gtk4/Wisps.ui:116 resources/ui/gtk4/SnapOfDisintegration.ui:116
-#: resources/ui/gtk4/TVEffect.ui:70 resources/ui/gtk4/EnergizeA.ui:116
-#: resources/ui/gtk4/EnergizeB.ui:116 resources/ui/gtk3/Wisps.ui:139
-#: resources/ui/gtk3/TVEffect.ui:83 resources/ui/gtk3/EnergizeA.ui:139
-#: resources/ui/gtk3/EnergizeB.ui:139
-msgid "Color"
-msgstr "색상"
-
-#: resources/ui/gtk4/Fire.ui:25 resources/ui/gtk3/Fire.ui:49
-msgid "Presets"
-msgstr "사전설정"
-
-#: resources/ui/gtk4/Fire.ui:141 resources/ui/gtk3/Fire.ui:189
-msgid "Speed"
-msgstr "속도"
-
-#: resources/ui/gtk4/Fire.ui:191 resources/ui/gtk3/Fire.ui:241
-msgid "3D Noise"
-msgstr "3차원 잡티"
-
-#: resources/ui/gtk4/Fire.ui:200 resources/ui/gtk3/Fire.ui:250
-msgid "Creates a more dynamic fire but requires more GPU power."
-msgstr "좀 더 역동적인 화염을 만들지만 더 많은 GPU 성능이 필요합니다."
-
-#: resources/ui/gtk4/Fire.ui:240 resources/ui/gtk3/Fire.ui:300
-msgid "Gradient"
-msgstr "그레디언트"
-
-#: resources/ui/gtk4/TRexAttack.ui:70
-msgid "Claw Scratch Scale"
-msgstr "발톱 자국 크기 비율"
-
-#: resources/ui/gtk4/TRexAttack.ui:116
-msgid "Claw Scratch Count"
-msgstr "발톱 자국 갯수"
-
-#: resources/ui/gtk4/TRexAttack.ui:162
-msgid "Warp Effect"
-msgstr "왜곡 효과"
-
-#: resources/ui/gtk4/TRexAttack.ui:208
-msgid "Flash Color"
-msgstr "번쩍임 색상"
-
-#: resources/ui/gtk4/effectPage.ui:37 resources/ui/gtk3/effectPage.ui:37
-msgid "Preview this Effect"
-msgstr "이 효과 미리 보기"
-
-#: resources/ui/gtk4/Hexagon.ui:116 resources/ui/gtk3/Hexagon.ui:147
-msgid "Mesh Line Width"
-msgstr "도형 선 굵기"
-
-#: resources/ui/gtk4/Hexagon.ui:162 resources/ui/gtk3/Hexagon.ui:195
-msgid "Line Color"
-msgstr "선 색상"
-
-#: resources/ui/gtk4/Hexagon.ui:196 resources/ui/gtk3/Hexagon.ui:238
-msgid "Glow Color"
-msgstr "불빛 색상"
-
-#: resources/ui/gtk4/Hexagon.ui:234 resources/ui/gtk3/Hexagon.ui:285
-msgid "Additive Blending"
-msgstr "혼합 효과"
-
-#: resources/ui/gtk4/Hexagon.ui:243 resources/ui/gtk3/Hexagon.ui:294
-msgid "You may want to enable this for dark window themes."
-msgstr "어두운 창 테마에서 사용하시면 좋습니다."
-
-#: resources/ui/gtk4/prefs.ui:28 resources/ui/gtk3/prefs.ui:35
-msgid "Welcome to Burn-My-Windows!"
-msgstr "Burn-My-Windows 사용을 환영해요!"
-
-#: resources/ui/gtk4/prefs.ui:39 resources/ui/gtk3/prefs.ui:46
-msgid "If you like this extension, recommend it to your friends :)"
-msgstr "이 확장이 맘에 든다면 친구에게 추천해주세요 :)"
-
-#: resources/ui/gtk4/prefs.ui:66 resources/ui/gtk3/prefs.ui:74
-msgid "Open Window Animation"
-msgstr "창 열기 애니메이션"
-
-#: resources/ui/gtk4/prefs.ui:75 resources/ui/gtk4/prefs.ui:119
-#: resources/ui/gtk3/prefs.ui:83 resources/ui/gtk3/prefs.ui:147
-msgid "If multiple are selected, one is chosen randomly."
-msgstr "여러 항목을 선택하면 그 중 하나를 임의로 선택합니다."
-
-#: resources/ui/gtk4/prefs.ui:90 resources/ui/gtk4/prefs.ui:134
-#: resources/ui/gtk3/prefs.ui:104 resources/ui/gtk3/prefs.ui:168
-msgid "Choose Effects"
-msgstr "효과 선택"
-
-#: resources/ui/gtk4/prefs.ui:110 resources/ui/gtk3/prefs.ui:138
-msgid "Close Window Animation"
-msgstr "창 닫기 애니메이션"
-
-#: resources/ui/gtk4/prefs.ui:150 resources/ui/gtk3/prefs.ui:198
-msgid "Also Add Effects to Dialogs"
-msgstr "대화상자에도 효과 추가"
-
-#: resources/ui/gtk4/Apparition.ui:116 resources/ui/gtk3/Apparition.ui:161
-msgid "Twirl Intensity"
-msgstr "회전 강도"
-
-#: resources/ui/gtk4/Apparition.ui:162 resources/ui/gtk3/Apparition.ui:210
-msgid "Shake Intensity"
-msgstr "떨림 강도"
-
-#: resources/ui/gtk4/Apparition.ui:208 resources/ui/gtk3/Apparition.ui:259
-msgid "Suction Intensity"
-msgstr "흡입 강도"
-
-#: resources/ui/gtk3/Fire.ui:63
-msgid "Choose a Preset"
-msgstr "사전설정 선택"
@@ -4,7 +4,7 @@
      [
        "epost@anotheragency.no",
        "Allan Nordh\u00f8y",
-        50
+        3
      ]
    ]
  },
@@ -13,40 +13,12 @@
      [
        "vistausss@fastmail.com",
        "Heimen Stoffels",
-        76
-      ]
-    ]
-  },
-  {
-    "Swedish": [
-      [
-        "obslsessed@duck.com",
-        "obslsessed",
-        1
-      ],
-      [
-        "swedishsailfishosuser@tutanota.com",
-        "Kristoffer Grundstr\u00f6m",
-        57
-      ]
-    ]
-  },
-  {
-    "Finnish": [
-      [
-        "jiri.gronroos@iki.fi",
-        "Jiri Gr\u00f6nroos",
-        57
+        65
      ]
    ]
  },
  {
    "Russian": [
-      [
-        "eg.ermakov2016@yandex.ru",
-        "\u0415\u0433\u043e\u0440 \u0415\u0440\u043c\u0430\u043a\u043e\u0432",
-        31
-      ],
      [
        "franigoyt@gmail.com",
        "ANIGO R. (AR)",
@@ -63,21 +35,12 @@
      ]
    ]
  },
-  {
-    "Arabic": [
-      [
-        "fawaz27000@hotmail.com",
-        "fawaz006",
-        79
-      ]
-    ]
-  },
  {
    "Turkish": [
      [
        "muhaaliss@pm.me",
        "Muha Aliss",
-        61
+        57
      ]
    ]
  },
@@ -91,7 +54,7 @@
      [
        "albano_battistella@hotmail.com",
        "albanobattistella",
-        74
+        63
      ]
    ]
  },
@@ -101,11 +64,6 @@
        "lyuutau@outlook.com",
        "\u5218\u97ec",
        36
-      ],
-      [
-        "poonsters6@gmail.com",
-        "merelymyself",
-        41
      ]
    ]
  },
@@ -114,17 +72,12 @@
      [
        "code@simonschneegans.de",
        "Simon Schneegans",
-        70
+        59
      ]
    ]
  },
  {
    "French": [
-      [
-        "mathieu.bousquet2@gmail.com",
-        "Mathieu B.",
-        9
-      ],
      [
        "redxxiii@zaclys.net",
        "Reda",
@@ -133,36 +86,22 @@
      [
        "theo.remon+weblate@uswery.eu",
        "Th\u00e9o Remon",
-        30
+        24
      ],
      [
        "bonnemainsnathan@gmail.com",
        "Nathan",
-        45
-      ]
-    ]
-  },
-  {
-    "Korean": [
-      [
-        "darkcircle.0426@gmail.com",
-        "Seong-ho Cho",
-        72
+        42
      ]
    ]
  },
  {
    "Spanish": [
      [
-        "dev.n47os@aleeas.com",
+        "ulicesah@gmail.com",
        "Ulices",
        7
      ],
-      [
-        "andres.segarra.aparicio@gmail.com",
-        "Andres Segarra",
-        10
-      ],
      [
        "fitojb@ubuntu.com",
        "Adolfo Jayme Barrientos",
@@ -171,7 +110,7 @@
      [
        "oscfdezdz@tuta.io",
        "\u00d3scar Fern\u00e1ndez D\u00edaz",
-        58
+        55
      ]
    ]
  }
@@ -0,0 +1,177 @@
+//////////////////////////////////////////////////////////////////////////////////////////
+//          )                                                   (                       //
+//       ( /(   (  (               )    (       (  (  (         )\ )    (  (            //
+//       )\()) ))\ )(   (         (     )\ )    )\))( )\  (    (()/( (  )\))(  (        //
+//      ((_)\ /((_|()\  )\ )      )\  '(()/(   ((_)()((_) )\ )  ((_)))\((_)()\ )\       //
+//      | |(_|_))( ((_)_(_/(    _((_))  )(_))  _(()((_|_)_(_/(  _| |((_)(()((_|(_)      //
+//      | '_ \ || | '_| ' \))  | '  \()| || |  \ V  V / | ' \)) _` / _ \ V  V (_-<      //
+//      |_.__/\_,_|_| |_||_|   |_|_|_|  \_, |   \_/\_/|_|_||_|\__,_\___/\_/\_//__/      //
+//                                 |__/                                                 //
+//                       Copyright (c) 2021 Simon Schneegans                            //
+//          Released under the GPLv3 or later. See LICENSE file for details.            //
+//////////////////////////////////////////////////////////////////////////////////////////
+
+'use strict';
+
+//////////////////////////////////////////////////////////////////////////////////////////
+// https://github.com/home-sweet-gnome/dash-to-panel/blob/master/utils.js#L669
+// DominantColorExtractor is adapted from https://github.com/micheleg/dash-to-dock
+//////////////////////////////////////////////////////////////////////////////////////////
+
+let themeLoader                = null;
+let iconCacheMap               = new Map();
+const MAX_CACHED_ITEMS         = 1000;
+const BATCH_SIZE_TO_DELETE     = 50;
+const DOMINANT_COLOR_ICON_SIZE = 64;
+
+var DominantColorExtractor = class {
+
+  constructor(app) {
+    this._app = app;
+  }
+
+  // Try to get the pixel buffer for the current icon, if not fail gracefully
+  _getIconPixBuf() {
+    let iconTexture = this._app.create_icon_texture(16);
+
+    if (themeLoader === null) {
+      let ifaceSettings = new Gio.Settings({schema: 'org.gnome.desktop.interface'});
+
+      themeLoader = new Gtk.IconTheme(),
+      themeLoader.set_custom_theme(
+        ifaceSettings.get_string('icon-theme'));  // Make sure the correct theme is loaded
+    }
+
+    // Unable to load the icon texture, use fallback
+    if (iconTexture instanceof St.Icon === false) {
+      return null;
+    }
+
+    iconTexture = iconTexture.get_gicon();
+
+    // Unable to load the icon texture, use fallback
+    if (iconTexture === null) {
+      return null;
+    }
+
+    if (iconTexture instanceof Gio.FileIcon) {
+      // Use GdkPixBuf to load the pixel buffer from the provided file path
+      return GdkPixbuf.Pixbuf.new_from_file(iconTexture.get_file().get_path());
+    }
+
+    // Get the pixel buffer from the icon theme
+    if (iconTexture instanceof Gio.ThemedIcon) {
+      let icon_info =
+        themeLoader.lookup_icon(iconTexture.get_names()[0], DOMINANT_COLOR_ICON_SIZE, 0);
+      if (icon_info !== null) return icon_info.load_icon();
+    }
+
+    return null;
+  }
+
+  // The backlight color choosing algorithm was mostly ported to javascript from the
+  // Unity7 C++ source of Canonicals:
+  // https://bazaar.launchpad.net/~unity-team/unity/trunk/view/head:/launcher/LauncherIcon.cpp
+  // so it more or less works the same way.
+  _getColorPalette() {
+    if (iconCacheMap.get(this._app.get_id())) {
+      // We already know the answer
+      return iconCacheMap.get(this._app.get_id());
+    }
+
+    let pixBuf = this._getIconPixBuf();
+    if (pixBuf == null) return null;
+
+    let pixels = pixBuf.get_pixels(), offset = 0;
+
+    let total = 0, rTotal = 0, gTotal = 0, bTotal = 0;
+
+    let resample_y = 1, resample_x = 1;
+
+    // Resampling of large icons
+    // We resample icons larger than twice the desired size, as the resampling
+    // to a size s
+    // DOMINANT_COLOR_ICON_SIZE < s < 2*DOMINANT_COLOR_ICON_SIZE,
+    // most of the case exactly DOMINANT_COLOR_ICON_SIZE as the icon size is tipycally
+    // a multiple of it.
+    let width  = pixBuf.get_width();
+    let height = pixBuf.get_height();
+
+    // Resample
+    if (height >= 2 * DOMINANT_COLOR_ICON_SIZE)
+      resample_y = Math.floor(height / DOMINANT_COLOR_ICON_SIZE);
+
+    if (width >= 2 * DOMINANT_COLOR_ICON_SIZE)
+      resample_x = Math.floor(width / DOMINANT_COLOR_ICON_SIZE);
+
+    if (resample_x !== 1 || resample_y !== 1)
+      pixels = this._resamplePixels(pixels, resample_x, resample_y);
+
+    // computing the limit outside the for (where it would be repeated at each iteration)
+    // for performance reasons
+    let limit = pixels.length;
+    for (let offset = 0; offset < limit; offset += 4) {
+      let r = pixels[offset], g = pixels[offset + 1], b = pixels[offset + 2],
+          a = pixels[offset + 3];
+
+      let saturation = (Math.max(r, g, b) - Math.min(r, g, b));
+      let relevance  = 0.1 * 255 * 255 + 0.9 * a * saturation;
+
+      rTotal += r * relevance;
+      gTotal += g * relevance;
+      bTotal += b * relevance;
+
+      total += relevance;
+    }
+
+    total = total * 255;
+
+    let r = rTotal / total, g = gTotal / total, b = bTotal / total;
+
+    let hsv = ColorUtils.RGBtoHSV(r * 255, g * 255, b * 255);
+
+    if (hsv.s > 0.15) hsv.s = 0.65;
+    hsv.v = 0.90;
+
+    let rgb = ColorUtils.HSVtoRGB(hsv.h, hsv.s, hsv.v);
+
+    // Cache the result.
+    let backgroundColor = {
+      lighter: ColorUtils.colorLuminance(rgb.r, rgb.g, rgb.b, 0.2),
+      original: ColorUtils.colorLuminance(rgb.r, rgb.g, rgb.b, 0),
+      darker: ColorUtils.colorLuminance(rgb.r, rgb.g, rgb.b, -0.5)
+    };
+
+    if (iconCacheMap.size >= MAX_CACHED_ITEMS) {
+      // delete oldest cached values (which are in order of insertions)
+      let ctr = 0;
+      for (let key of iconCacheMap.keys()) {
+        if (++ctr > BATCH_SIZE_TO_DELETE) break;
+        iconCacheMap.delete(key);
+      }
+    }
+
+    iconCacheMap.set(this._app.get_id(), backgroundColor);
+
+    return backgroundColor;
+  }
+
+  // Downsample large icons before scanning for the backlight color to
+  // improve performance.
+  _resamplePixels(pixels, resampleX, resampleY) {
+    let resampledPixels = [];
+    // computing the limit outside the for (where it would be repeated at each iteration)
+    // for performance reasons
+    let limit = pixels.length / (resampleX * resampleY) / 4;
+    for (let i = 0; i < limit; i++) {
+      let pixel = i * resampleX * resampleY;
+
+      resampledPixels.push(pixels[pixel * 4]);
+      resampledPixels.push(pixels[pixel * 4 + 1]);
+      resampledPixels.push(pixels[pixel * 4 + 2]);
+      resampledPixels.push(pixels[pixel * 4 + 3]);
+    }
+
+    return resampledPixels;
+  }
+};
@@ -76,10 +76,6 @@ var Shader = GObject.registerClass(
    // This is called once each time the shader is used.
    beginAnimation(settings, forOpening, actor) {

-      // Reset progress values.
-      this._progress = 0;
-      this._time     = 0;
-
      // This is not necessarily symmetric, but I haven't figured out a way to
      // get the actual values...
      const padding = (actor.width - actor.meta_window.get_frame_rect().width) / 2;
@@ -93,8 +89,11 @@ var Shader = GObject.registerClass(

    // This is called at each frame during the animation.
    updateAnimation(progress, time) {
-      // Store the current time and progress values. The corresponding signal is emitted
-      // each frame in vfunc_paint_target.
+      this.set_uniform_float(this._uProgress, 1, [progress]);
+      this.set_uniform_float(this._uTime, 1, [time]);
+
+      // Store the current time and progress values. The corresponding signal is emitted a
+      // but later in vfunc_paint_target.
      this._progress = progress;
      this._time     = time;
    }
@@ -122,8 +121,6 @@ var Shader = GObject.registerClass(
    // the handler. This could still be null if called from the updateAnimation() above.
    vfunc_paint_target(...params) {
      this.emit('update-animation', this._progress, this._time);
-      this.set_uniform_float(this._uProgress, 1, [this._progress]);
-      this.set_uniform_float(this._uTime, 1, [this._time]);
      super.vfunc_paint_target(...params);
    }