first commit

media-tools/image-converter/assets/css/fonts.css

@@ -0,0 +1,63 @@
+@font-face {
+    font-family: 'geist';
+    src: url('../fonts/geist/geist-regular.woff2') format('woff2'),
+         url('../fonts/geist/geist-regular.woff') format('woff');
+    font-weight: 400;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geist';
+    src: url('../fonts/geist/geist-medium.woff2') format('woff2'),
+         url('../fonts/geist/geist-medium.woff') format('woff');
+    font-weight: 500;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geist';
+    src: url('../fonts/geist/geist-semibold.woff2') format('woff2'),
+         url('../fonts/geist/geist-semibold.woff') format('woff');
+    font-weight: 600;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geist';
+    src: url('../fonts/geist/geist-bold.woff2') format('woff2'),
+         url('../fonts/geist/geist-bold.woff') format('woff');
+    font-weight: 700;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geistmono';
+    src: url('../fonts/geistmono/geistmono-regular.woff2') format('woff2'),
+         url('../fonts/geistmono/geistmono-regular.woff') format('woff');
+    font-weight: 400;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geistmono';
+    src: url('../fonts/geistmono/geistmono-medium.woff2') format('woff2'),
+         url('../fonts/geistmono/geistmono-medium.woff') format('woff');
+    font-weight: 500;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geistmono';
+    src: url('../fonts/geistmono/geistmono-semibold.woff2') format('woff2'),
+         url('../fonts/geistmono/geistmono-semibold.woff') format('woff');
+    font-weight: 700;
+    font-style: normal;
+}
+
+@font-face {
+    font-family: 'geistmono';
+    src: url('../fonts/geistmono/geistmono-bold.woff2') format('woff2'),
+         url('../fonts/geistmono/geistmono-bold.woff') format('woff');
+    font-weight: 700;
+    font-style: normal;
+}

media-tools/image-converter/assets/css/variables.css

@@ -0,0 +1,178 @@
+:root {
+  --text-font: 'geist', sans-serif, arial;
+
+  --breakpoint-2xs: 480px;
+  --breakpoint-xs: 640px;
+  --breakpoint-sm: 768px;
+  --breakpoint-md: 1024px;
+  --breakpoint-lg: 1280px;
+  --breakpoint-xl: 1536px;
+  --breakpoint-2xl: 1920px;
+
+  --content-width: 100%;
+  --content-width-gutter: var(--space-lg);
+
+  --duration-multiplier: 1; /* Allow disabling or increase animation speed */
+  --duration-75: calc(75ms * var(--duration-multiplier));
+  --duration-100: calc(100ms * var(--duration-multiplier));
+  --duration-150: calc(150ms * var(--duration-multiplier));
+  --duration-200: calc(200ms * var(--duration-multiplier));
+  --duration-300: calc(300ms * var(--duration-multiplier));
+  --duration-400: calc(400ms * var(--duration-multiplier));
+  --duration-500: calc(500ms * var(--duration-multiplier));
+  --duration-600: calc(600ms * var(--duration-multiplier));
+  --duration-700: calc(700ms * var(--duration-multiplier));
+  --duration-800: calc(800ms * var(--duration-multiplier));
+  --duration-900: calc(900ms * var(--duration-multiplier));
+  --duration-1000: calc(1000ms * var(--duration-multiplier));
+  --duration-1200: calc(1200ms * var(--duration-multiplier));
+  --duration-1400: calc(1400ms * var(--duration-multiplier));
+  --duration-2000: calc(2000ms * var(--duration-multiplier));
+
+  --duration-hover: var(--duration-200);
+
+  /* 12.5px → 12.8px */
+  --text-xs: clamp(0.7813rem, 0.7747rem + 0.0326vw, 0.8rem);
+  /*  15px → 16px */
+  --text-sm: clamp(0.9375rem, 0.9158rem + 0.1087vw, 1rem);
+  /* 18px → 20px */
+  --text-md: clamp(1.125rem, 1.0815rem + 0.2174vw, 1.25rem);
+  /* 21.6px → 25px */
+  --text-lg: clamp(1.35rem, 1.2761rem + 0.3696vw, 1.5625rem);
+  /* 25.92px → 31.25px */
+  --text-xl: clamp(1.62rem, 1.5041rem + 0.5793vw, 1.9531rem);
+  /* 31.104px → 39.0625px */
+  --text-2xl: clamp(1.944rem, 1.771rem + 0.8651vw, 2.4414rem);
+  /* 37.3248px → 48.8281px */
+  --text-3xl: clamp(2.3328rem, 2.0827rem + 1.2504vw, 3.0518rem);
+  /* 44.7898px → 61.0352px */
+  --text-4xl: clamp(2.7994rem, 2.4462rem + 1.7658vw, 3.8147rem);
+
+  /* Space 3xs: 5px → 5px */
+  --space-3xs: clamp(0.3125rem, 0.3125rem + 0vw, 0.3125rem);
+  /* Space 2xs: 9px → 10px */
+  --space-2xs: clamp(0.5625rem, 0.5408rem + 0.1087vw, 0.625rem);
+  /* Space xs: 14px → 15px */
+  --space-xs: clamp(0.875rem, 0.8533rem + 0.1087vw, 0.9375rem);
+  /* Space sm: 18px → 20px */
+  --space-sm: clamp(1.125rem, 1.0815rem + 0.2174vw, 1.25rem);
+  /* Space md: 27px → 30px */
+  --space-md: clamp(1.6875rem, 1.6223rem + 0.3261vw, 1.875rem);
+  /* Space lg: 36px → 40px */
+  --space-lg: clamp(2.25rem, 2.163rem + 0.4348vw, 2.5rem);
+  /* Space xl: 54px → 60px */
+  --space-xl: clamp(3.375rem, 3.2446rem + 0.6522vw, 3.75rem);
+  /* Space 2xl: 72px → 80px */
+  --space-2xl: clamp(4.5rem, 4.3261rem + 0.8696vw, 5rem);
+  /* Space 3xl: 108px → 120px */
+  --space-3xl: clamp(6.75rem, 6.4891rem + 1.3043vw, 7.5rem);
+
+  /* One-up pairs */
+  /* Space 3xs-2xs: 5px → 10px */
+  --space-3xs-2xs: clamp(0.3125rem, 0.2038rem + 0.5435vw, 0.625rem);
+  /* Space 2xs-xs: 9px → 15px */
+  --space-2xs-xs: clamp(0.5625rem, 0.4321rem + 0.6522vw, 0.9375rem);
+  /* Space xs-sm: 14px → 20px */
+  --space-xs-sm: clamp(0.875rem, 0.7446rem + 0.6522vw, 1.25rem);
+  /* Space s-m: 18px → 30px */
+  --space-sm-md: clamp(1.125rem, 0.8641rem + 1.3043vw, 1.875rem);
+  /* Space md-lg: 27px → 40px */
+  --space-md-lg: clamp(1.6875rem, 1.4049rem + 1.413vw, 2.5rem);
+  /* Space lg-xl: 36px → 60px */
+  --space-lg-xl: clamp(2.25rem, 1.7283rem + 2.6087vw, 3.75rem);
+  /* Space xl-2xl: 54px → 80px */
+  --space-xl-2xl: clamp(3.375rem, 2.8098rem + 2.8261vw, 5rem);
+  /* Space 2xl-3xl: 72px → 120px */
+  --space-2xl-3xl: clamp(4.5rem, 3.4565rem + 5.2174vw, 7.5rem);
+
+  /* Rounded borders */
+  --rounded-sm: 4px;
+  --rounded-md: 8px;
+  --rounded-lg: 16px;
+  --rounded-xl: 32px;
+  --rounded-full: 9999px;
+}
+
+:root {
+  /* Brand */
+  --color-primary: #6d2eb8;
+  --color-primary-variant: #d9bbff;
+  --color-primary-hover: #8848d6;
+  --color-accent: #bb86fc;
+  --color-white: #ffffff;
+  --color-black: #000000;
+
+  /* Surfaces */
+  --color-surface: #0b0b0b; /* Elevation 1 */
+  --color-surface-variant: #0b0b0b; /* Elevation 1 */
+  --color-surface-high: #191919; /* Elevation 2 */
+  --color-surface-high-hover: var(--color-surface-higher);
+  --color-surface-higher: #333333; /* Elevation 3 */
+  --color-surface-higher-hover: #484848; /* Elevation 3 */
+
+  /* Glyphs */
+  --color-on-surface: rgb(221, 221, 221);
+  --color-on-surface-high: rgb(236, 236, 236);
+  --color-on-surface-higher: #ffffff;
+
+  --color-border: rgba(125, 125, 125, 0.9);
+  --color-border-hover: rgba(137, 137, 137, 0.9);
+  --color-border-selected: rgba(161, 161, 161, 0.9);
+
+  /* States */
+  --color-success: #199b1e;
+  --color-error: #d24340;
+  --color-warning: #d59600;
+  --color-info: #1888e4;
+
+  /* Shadows */
+  --shadow-1: rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.04) 0px 10px 10px -5px;
+  --shadow-2: rgba(0, 0, 0, 0.1) 0px 20px 29px -4px, rgba(0, 0, 0, 0.04) 0px 10px 60px -5px;
+  --shadow-3: rgba(0, 0, 0, 0.09) 0px 2px 1px, rgba(0, 0, 0, 0.09) 0px 4px 8px, rgb(0 0 0 / 3%) 0px 8px 11px, rgb(0 0 0 / 5%) 0px 11px 12px 4px, rgba(0, 0, 0, 0.09) 0px 32px 16px;
+
+  /* Misc. */
+  --filter-invert: 0; /* For non-variable shades applied */
+  --subpage-shade-x-color: var(--color-surface); /* The shade around the subpage container */
+  --subpage-title-shade: linear-gradient(275deg, rgb(0 0 0 / 17%) 0%, rgba(0, 0, 0, 0.01) 75%, rgba(0, 0, 0, 0) 100%);
+  --surface-shade: linear-gradient(
+    to bottom right, 
+    hsl(0deg 0% 50% / 2%), 
+    hsl(0deg 0% 0% / 39%)
+  ); /* Subpage, dialog, toast container surface */
+}
+
+html.theme-light {
+  /* Brand */
+  --color-primary: #007f6e;
+  --color-primary-variant: #015a4e;
+  --color-primary-hover: #005b4f;
+  --color-accent: #0bb79f;
+  /* Surfaces */
+  --color-surface: #fff;
+  --color-surface-variant: #e6e6e6;
+  --color-surface-high: #f5f5f5;
+  --color-surface-higher: #e3e3e3;
+  --color-surface-higher-hover: #cfcfcf;
+
+  /* Glyphs */
+  --color-on-surface: #333333;
+  --color-on-surface-high: #2b2b2b;
+  --color-on-surface-higher: #121212;
+
+  --color-border: rgba(90, 90, 90, 0.9);
+  --color-border-hover: rgba(121, 121, 121, 0.9);
+  --color-border-selected: rgba(114, 114, 114, 0.9);
+
+
+  /* States */
+  --color-success: #388e3c;
+  --color-error: #d32f2f;
+  --color-warning: #fbc02d;
+  --color-info: #0288d1;
+
+  /* Misc. */
+  --filter-invert: 1;
+  --subpage-shade-x-color: var(--color-surface-variant);
+  --subpage-title-shade: linear-gradient(275deg, rgb(247 247 247 / 39%) 0%, rgb(255 255 255 / 65%) 75%, rgb(255 255 255) 100%);
+  --surface-shade: linear-gradient(to bottom right, hsl(0deg 0% 100%), hsl(0deg 0% 93.94%));
+}

media-tools/image-converter/assets/fonts/geist/OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2024 The Geist Project Authors (https://github.com/vercel/geist-font.git)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

media-tools/image-converter/assets/fonts/geistmono/OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2024 The Geist Project Authors (https://github.com/vercel/geist-font.git)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

media-tools/image-converter/assets/js/compression.js

@@ -0,0 +1,272 @@
+async function preProcessImage(file) {
+  let preProcessedImage = null;
+  let preProcessedNewFileType = null;
+
+  if (file.type === "image/heic" || file.type === "image/heif" || isHeicExt(file)) {
+    console.log('Pre-processing HEIC image...')
+
+    preProcessedImage = await HeicTo({
+      blob: file,
+      type: "image/jpeg",
+      quality: 0.9,
+    });
+
+    console.log("preProcessedImage: ", preProcessedImage);
+
+    preProcessedNewFileType = "image/jpeg";
+  }
+
+  if (file.type === "image/avif") {
+    console.log('Pre-processing AVIF image...')
+
+    setTimeout(() => {
+      ui.progress.text.innerHTML = `Please wait. AVIF files may take longer to prepare<span class="loading-dots">`;
+    }, 5000);
+
+    preProcessedImage = await imageCompression(file, {
+      quality: 0.8,
+      fileType: "image/jpeg",
+      useWebWorker: true,
+      preserveExif: false,
+      libURL: "./browser-image-compression.js",
+      alwaysKeepResolution: true,
+    });
+
+    preProcessedNewFileType = "image/jpeg";
+  }
+
+  return { preProcessedImage, preProcessedNewFileType };
+}
+
+async function createCompressionOptions(onProgress, file) {
+  const compressMethod = getCheckedValue(ui.inputs.compressMethod);
+  const dimensionMethod = getCheckedValue(ui.inputs.dimensionMethod);
+  const maxWeight = parseFloat(ui.inputs.limitWeight.value);
+  const { selectedFormat } = getFileType(file);
+
+  quality = Math.min(Math.max(parseFloat(ui.inputs.quality.value) / 100, 0), 1);
+
+  console.log("Input image file size: ", (file.size / 1024 / 1024).toFixed(3), "MB");
+
+  let maxWeightMB = ui.inputs.limitWeightUnit.value.toUpperCase() === "KB" ? 
+    ui.inputs.limitWeight.value / 1024 : 
+    ui.inputs.limitWeight.value;
+
+  let limitDimensionsValue = undefined;
+
+  if (file.type === "image/heif" || file.type === "image/heic" || isHeicExt(file)) {
+    if (getCheckedValue(ui.inputs.dimensionMethod) === "limit") {
+      limitDimensionsValue = (ui.inputs.limitDimensions.value > 50) ? ui.inputs.limitDimensions.value : 50;
+    }
+    else {
+      limitDimensionsValue = undefined;
+    }
+  }
+  else {
+    limitDimensionsValue = dimensionMethod === "limit" ? 
+      await getAdjustedDimensions(file, ui.inputs.limitDimensions.value) : 
+      undefined;
+  }
+
+
+  const options = {
+    maxSizeMB: maxWeight && compressMethod === "limitWeight" ? maxWeightMB : (file.size / 1024 / 1024).toFixed(3),
+    initialQuality: quality && compressMethod === "quality" ? quality : undefined,
+    maxWidthOrHeight: limitDimensionsValue,
+    useWebWorker: true,
+    onProgress,
+    preserveExif: false,
+    fileType: selectedFormat || undefined,
+    libURL: "./browser-image-compression.js",
+    alwaysKeepResolution: true,
+  };
+  if (state.controller) {
+    options.signal = state.controller.signal;
+  }
+
+  console.log("Settings:", options);
+  return options;
+}
+
+
+async function compressImageQueue() {
+  if (!state.compressQueue.length) {
+    resetCompressionState(true);
+    return;
+  }
+
+  const file = state.compressQueue[0];
+  const i = state.compressProcessedCount;
+
+  console.log('Input file: ', file);
+
+  if (!isFileTypeSupported(file.type, file)) {
+    console.error(`Unsupported file type: ${file.type}. Skipping "${file.name}".`);
+    ui.progress.text.innerHTML = `Unsupported file "<div class='progress-file-name'>${file.name}</div>"`;
+    state.compressQueue.shift();
+    await compressImageQueue();
+    return;
+  }
+
+  const options = await createCompressionOptions((p) => onProgress(p, i, file.name), file);
+  const { preProcessedImage, preProcessedNewFileType } = await preProcessImage(file);
+
+  if (preProcessedImage) {
+    options.fileType = preProcessedNewFileType;
+  }
+
+  imageCompression(preProcessedImage || file, options)
+    .then((output) => handleCompressionResult(file, output))
+    .catch((error) => console.error(error.message))
+    .finally(() => {
+      state.compressProcessedCount++;
+      state.compressQueue.shift();
+      resetCompressionState(state.compressProcessedCount === state.compressQueueTotal);
+      if (state.compressProcessedCount < state.compressQueueTotal) {
+        compressImageQueue();
+      }
+
+    });
+
+  function onProgress(p, index, fileName) {
+    const overallProgress = calculateOverallProgress(
+      state.fileProgressMap,
+      state.compressQueueTotal
+    );
+    const fileNameShort =
+      fileName.length > 15 ? fileName.slice(0, 12) + "..." : fileName;
+    state.fileProgressMap[index] = p;
+
+    ui.progress.queueCount.textContent = `${
+      state.compressProcessedCount + 1
+    } / ${state.compressQueueTotal}`;
+    ui.progress.text.dataset.progress = overallProgress;
+    ui.progress.text.innerHTML = `Optimizing "<div class='progress-file-name'>${fileName}</div>"`;
+    ui.progress.bar.style.width = overallProgress + "%";
+    console.log(`Optimizing "${fileNameShort}" (${overallProgress}%)`);
+
+    if (p === 100 && state.compressProcessedCount === state.compressQueueTotal - 1) {
+      ui.progress.text.innerHTML = `
+        <div class="badge badge--success pt-2xs pb-2xs bg:surface">
+          <div class="badge-text flex items-center gap-3xs">
+            <svg height="16" stroke-linejoin="round" viewBox="0 0 16 16" width="16" style="color: currentcolor;"><path fill-rule="evenodd" clip-rule="evenodd" d="M14.5 8C14.5 11.5899 11.5899 14.5 8 14.5C4.41015 14.5 1.5 11.5899 1.5 8C1.5 4.41015 4.41015 1.5 8 1.5C11.5899 1.5 14.5 4.41015 14.5 8ZM16 8C16 12.4183 12.4183 16 8 16C3.58172 16 0 12.4183 0 8C0 3.58172 3.58172 0 8 0C12.4183 0 16 3.58172 16 8ZM11.5303 6.53033L12.0607 6L11 4.93934L10.4697 5.46967L6.5 9.43934L5.53033 8.46967L5 7.93934L3.93934 9L4.46967 9.53033L5.96967 11.0303C6.26256 11.3232 6.73744 11.3232 7.03033 11.0303L11.5303 6.53033Z" fill="currentColor"></path></svg>
+            <span>Done!</span>
+          </div>
+        <div>
+      `;
+    }
+  }
+}
+
+function compressImage(event) {
+  state.controller = new AbortController();
+  state.compressQueue = Array.from(event.target.files);
+  state.compressQueueTotal = state.compressQueue.length;
+  state.compressProcessedCount = 0;
+  state.fileProgressMap = {};
+  state.isCompressing = true;
+  
+  document.body.classList.add("compressing--is-active");
+  ui.actions.dropZone.classList.add("hidden");
+  ui.actions.abort.classList.remove("hidden");
+  ui.progress.container.classList.remove("hidden");
+  ui.progress.text.innerHTML = `Preparing<span class="loading-dots">`;
+
+  compressImageQueue();
+}
+
+
+function handleCompressionResult(file, output) {
+  const { outputFileExtension, selectedFormat } = getFileType(file);
+  const outputImageBlob = URL.createObjectURL(output);
+
+  const { renamedFileName, isBrowserDefaultFileName } = renameBrowserDefaultFileName(file.name);
+  const outputFileNameText = updateFileExtension(
+    isBrowserDefaultFileName ? renamedFileName : file.name,
+    outputFileExtension,
+    selectedFormat
+  );
+
+  const inputFileSize = parseFloat((file.size / 1024 / 1024).toFixed(3));
+  const outputFileSize = parseFloat((output.size / 1024 / 1024).toFixed(3));
+  const fileSizeSaved = inputFileSize - outputFileSize;
+  const fileSizeSavedPercentage =
+    inputFileSize > 0
+      ? Math.abs(((fileSizeSaved / inputFileSize) * 100).toFixed(2))
+      : "0.000";
+  const fileSizeSavedTrend =
+    fileSizeSaved < 0 ? "+" : fileSizeSaved > 0 ? "-" : "";
+  const fileSizeSavedClass =
+    fileSizeSaved <= 0 ? "badge--error" : "badge--success";
+
+  imageCompression(output, config.thumbnailOptions).then((thumbnailBlob) => {
+    const thumbnailDataURL = URL.createObjectURL(thumbnailBlob);
+    getImageDimensions(outputImageBlob, ({ width, height }) => {
+      const outputHTML = buildOutputItemHTML({
+        outputImageBlob,
+        thumbnailDataURL,
+        outputFileNameText,
+        outputFileExtension,
+        width,
+        height,
+        fileSize: output.size,
+        fileSizeSavedTrend,
+        fileSizeSavedPercentage,
+        fileSizeSavedClass,
+      });
+      const wrapper = document.createElement("div");
+      wrapper.innerHTML = outputHTML.trim();
+      ui.output.content.prepend(wrapper.firstChild);
+
+      state.outputImageCount++;
+      ui.output.container.dataset.count = state.outputImageCount;
+      ui.output.subpageOutput.dataset.count = state.outputImageCount;
+      ui.output.imageCount.dataset.count = state.outputImageCount;
+      ui.output.imageCount.textContent = state.outputImageCount;
+
+      if (state.compressProcessedCount === 1) {
+        selectSubpage("output");
+      }
+    });
+  });
+}
+
+function calculateOverallProgress(progressMap, totalFiles) {
+  const sum = Object.values(progressMap).reduce((acc, val) => acc + val, 0);
+  return Math.round(sum / totalFiles);
+}
+
+function resetCompressionState(isAllProcessed, aborted) {
+  const resetState = () => {
+    state.compressProcessedCount = 0;
+    state.compressQueueTotal = 0;
+    ui.progress.queueCount.textContent = "";
+    state.compressQueue = [];
+    state.isCompressing = false;
+  };
+
+  if (aborted) {
+    resetUI();
+    resetState();
+    return;
+  }
+
+  if (isAllProcessed) {
+    ui.actions.abort.classList.add("hidden");
+    ui.progress.bar.style.width = "100%";
+
+    setTimeout(() => {
+      // Delay state reset to allow "Done" message to remain 
+      resetUI();
+      state.isCompressing = false;
+    }, 1000);
+    return;
+  }
+
+  if (state.isCompressing && state.compressProcessedCount === 0) {
+    ui.progress.text.dataset.progress = 0;
+    ui.progress.text.textContent = "Preparing 0%";
+    ui.progress.bar.style.width = "0%";
+  }
+}
+

media-tools/image-converter/assets/js/download.js

@@ -0,0 +1,99 @@
+
+async function downloadAllImages() {
+  const GB = 1024 * 1024 * 1024;
+  const chunkSize = 1 * GB;
+  const zipFileName = appendFileNameId("mazanoke-images");
+
+  try {
+    if (state.isDownloadingAll) return;
+    state.isDownloadingAll = true;
+    ui.actions.downloadAll.setAttribute("aria-busy", "true");
+
+    const compressedImages = document.querySelectorAll(
+      'a.image-output__item-download-button[href^="blob:"]'
+    );
+    const blobs = await Promise.all(
+      Array.from(compressedImages).map(async (link, index) => {
+        try {
+          const response = await fetch(link.href);
+          if (!response.ok)
+            throw new Error(`Failed to fetch image ${index + 1}`);
+          return await response.blob();
+        } catch (error) {
+          console.error(`Error downloading image ${index + 1}:`, error);
+          return null;
+        }
+      })
+    );
+
+    const validBlobs = blobs.filter((blob) => blob !== null);
+
+    if (validBlobs.length === 0) {
+      throw new Error("No valid images to download");
+    }
+
+    let currentZip = zip;
+    let totalSize = 0;
+    let zipIndex = 1;
+
+    for (let i = 0; i < validBlobs.length; i++) {
+      const fileSize = parseInt(compressedImages[i].dataset.filesize, 10);
+
+      if (totalSize + fileSize > chunkSize) {
+        const zipBlob = await currentZip.generateAsync({ type: "blob" });
+        await triggerDownload(
+          zipBlob,
+          `${zipFileName}-${zipIndex.toString().padStart(3, "0")}.zip`
+        );
+
+        currentZip = new JSZip();
+        totalSize = 0;
+        zipIndex++;
+      }
+
+      currentZip.file(compressedImages[i].download, validBlobs[i]);
+      totalSize += fileSize;
+    }
+
+    if (totalSize > 0) {
+      const finalName =
+        zipIndex === 1
+          ? `${zipFileName}.zip`
+          : `${zipFileName}-${zipIndex.toString().padStart(3, "0")}.zip`;
+      const zipBlob = await currentZip.generateAsync({ type: "blob" });
+      await triggerDownload(zipBlob, finalName);
+    }
+  }
+  catch (error) {
+    console.error("Download all images as zip failed:", error);
+  }
+  finally {
+    ui.actions.downloadAll.setAttribute("aria-busy", "false");
+    state.isDownloadingAll = false;
+  }
+}
+
+async function triggerDownload(blob, filename) {
+  return new Promise((resolve) => {
+    const link = document.createElement("a");
+    link.href = URL.createObjectURL(blob);
+    link.download = filename;
+    document.body.appendChild(link);
+    link.click();
+
+    setTimeout(() => {
+      document.body.removeChild(link);
+      URL.revokeObjectURL(link.href);
+      resolve();
+    }, 100);
+  });
+}
+
+function deleteAllImages() {
+  ui.output.content.innerHTML = "";
+  ui.output.container.dataset.count = 0;
+  ui.output.subpageOutput.dataset.count = 0;
+  ui.output.imageCount.dataset.count = 0;
+  ui.output.imageCount.textContent = 0;
+  state.outputImageCount = 0;
+}

media-tools/image-converter/assets/js/events.js

@@ -0,0 +1,128 @@
+initApp();
+
+function initApp() {
+  // Initialize the app
+  initDropZone();
+  initInputValidation();
+  initClipboardPaste();
+  initBackToTop();
+  setConfigForm();
+  restoreConfigForm();
+}
+
+
+function initDropZone() {
+  const dropZone = ui.groups.dropZone;
+  const fileInput = ui.inputs.file;
+  const compressingGuard = (handler) => (e) => {
+    // Prevent adding more to compression queue when isCompressing.
+    if (state.isCompressing) return;
+    handler(e);
+  };  
+
+  dropZone.addEventListener("click", compressingGuard(() => fileInput.click()));
+
+  fileInput.addEventListener("change", compressingGuard((e) => {
+    if (fileInput.files?.length) {
+      compressImage(e);
+      fileInput.value = "";
+    }
+  }));
+  
+  const toggleDragging = (add) => dropZone.classList.toggle("drop-zone--is-dragging", add);
+  
+  dropZone.addEventListener("dragenter", compressingGuard((e) => {
+    e.preventDefault();
+    toggleDragging(true);
+  }));
+  
+  dropZone.addEventListener("dragover", compressingGuard((e) => {
+    e.preventDefault();
+    toggleDragging(true);
+  }));
+  
+  dropZone.addEventListener("dragleave", compressingGuard((e) => {
+    e.preventDefault();
+    toggleDragging(false);
+  }));
+  
+  dropZone.addEventListener("drop", compressingGuard((e) => {
+    e.preventDefault();
+    toggleDragging(false);
+    if (e.dataTransfer.files?.length) {
+      fileInput.files = e.dataTransfer.files;
+      compressImage({ target: fileInput }, true);
+      fileInput.value = "";
+    }
+  }));
+}
+
+function initInputValidation() {
+  ui.inputs.quality.addEventListener("change", () => {
+    setQuality(ui.inputs.quality.value);
+  });
+  
+  ui.inputs.limitDimensions.addEventListener("change", (e) => {
+    setLimitDimensions(ui.inputs.limitDimensions.value);
+  });
+  
+  ui.inputs.limitWeight.addEventListener("change", (e) => {
+    setWeight(ui.inputs.limitWeight.value, ui.inputs.limitWeightUnit.value);
+  });
+  
+  ui.inputs.limitWeightUnit.addEventListener("change", (e) => {
+    setWeightUnit(e.target.value);
+  });
+}
+
+function initClipboardPaste() {
+  document.addEventListener("paste", handlePasteImage);
+}
+
+function initBackToTop() {
+  ui.actions.backToTop.addEventListener("click", function () {
+    window.scrollTo({
+      top: 0,
+      behavior: "smooth",
+    });
+  });
+}
+
+function setConfigForm() {
+  // Default values of form fields, or for restoring local storage values.
+  setQuality(config.form.quality.value);
+  setLimitDimensions(config.form.limitDimensions.value);
+  setWeightUnit(config.form.limitWeightUnit.value);
+  setWeight(config.form.limitWeight.value, config.form.limitWeightUnit.value);
+  setCompressMethod(config.form.compressMethod.value);
+  setDimensionMethod(config.form.dimensionMethod.value);
+  setConvertMethod(config.form.convertMethod.value);
+}
+
+function handlePasteImage(e) {
+  if (!e.clipboardData || state.isCompressing) return;
+
+  const items = e.clipboardData.items;
+  const files = [];
+
+  for (let i = 0; i < items.length; i++) {
+    const item = items[i];
+
+    if (item.kind === "file" && item.type.startsWith("image/")) {
+      files.push(item.getAsFile());
+    }
+  }
+
+  if (files.length) {
+    compressImage({ target: { files } });
+  }
+}
+
+function abort(event) {
+  // Cancel on-going compression.
+  event.stopPropagation();
+  if (!state.controller) return;
+  resetCompressionState(false, true);
+  state.controller.abort(new Error("Image compression cancelled"));
+}
+

media-tools/image-converter/assets/js/global.js

@@ -0,0 +1,106 @@
+window.App = window.App || {};
+
+App.ui = {
+  dialogs: {
+    installPWA: document.getElementById("installPWADialog"),
+    updateToast: document.getElementById("updateToast"),
+    updateToastRefreshButton: document.getElementById("updateToastRefreshButton"),
+  },
+  inputs: {
+    quality: document.getElementById("quality"),
+    limitDimensions: document.getElementById("limitDimensions"),
+    limitWeight: document.getElementById("limitWeight"),
+    limitWeightUnit: document.getElementById("limitWeightUnit"),
+    compressMethod: document.querySelectorAll('[name="compressMethod"]'),
+    dimensionMethod: document.querySelectorAll('[name="dimensionMethod"]'),
+    formatSelect: document.querySelectorAll('[name="formatSelect"]'),
+    file: document.getElementById("compress"),
+    settingsSubpage: document.querySelectorAll('[name="settingsSubpage"]'),
+  },
+  labels: {
+    limitWeightSuffix: document.querySelector('label[for="limitWeight"][data-suffix]'),
+  },
+  progress: {
+    container: document.querySelector(".progress-container"),
+    queueCount: document.getElementById("compressProgressQueueCount"),
+    track: document.getElementById("compressProgressTrack"),
+    bar: document.getElementById("compressProgressBar"),
+    text: document.getElementById("compressProgressText"),
+  },
+  output: {
+    container: document.getElementById("outputDownloadContainer"),
+    content: document.getElementById("outputDownloadContent"),
+    downloadAllBtn: document.getElementById("downloadAllImagesButton"),
+    subpageOutput: document.getElementById("subpageOutput"),
+    imageCount: document.getElementById("compressedImageCount"),
+    outputFileType: 'image/png',
+  },
+  actions: {
+    abort: document.getElementById("compressAbort"),
+    dropZone: document.getElementById("dropZoneActions"),
+    backToTop: document.getElementById("backToTop"),
+    downloadAll: document.getElementById("downloadAllImagesButton"),
+  },
+  groups: {
+    formatMethod: document.getElementById("formatMethodGroup"),
+    settingsSubpage: document.getElementById("selectSettingsSubpage"),
+    dropZone: document.getElementById("compressDropZone"),
+    limitWeight: document.getElementById("limitWeightField"),
+    quality: document.getElementById("qualityField"),
+    compressMethod: document.getElementById("compressMethodGroup"),
+  },
+};
+
+App.config = {
+  form: {
+    // Default form settings
+    quality: {value: 80},
+    limitDimensions: {value: 1200},
+    limitWeightUnit: {value: "MB"},
+    limitWeight: {value: 2},
+    compressMethod: {value: "quality"},
+    dimensionMethod: {value: "original"},
+    convertMethod: {value: "default"},
+  },
+  thumbnailOptions: {
+    initialQuality: 0.8,
+    maxWidthOrHeight: 70,
+    usecompress: true,
+    preserveExif: false,
+    fileType: "image/png",
+    libURL: "./browser-image-compression.js",
+    alwaysKeepResolution: true,
+  },
+  qualityLimit: {
+    min: 0,
+    max: 100,
+  },
+  weightLimit: {
+    min: 0.01,
+    max: 100,
+  },
+  dimensionLimit: {
+    min: 1,
+    max: 30000,
+  },
+};
+
+
+App.state = {
+  controller: null,
+  compressQueue: [],
+  compressQueueTotal: 0,
+  compressProcessedCount: 0,
+  compressMethod: null,
+  isCompressing: false,
+  isDownloadingAll: false,
+  inputFileSize: null,
+  outputImageCount: 0,
+  fileProgressMap: {},
+  limitWeightUnit: "MB",
+};
+
+const ui = App.ui;
+const config = App.config;
+const state = App.state;
+zip = new JSZip();

media-tools/image-converter/assets/js/helpers.js

@@ -0,0 +1,49 @@
+function buildOutputItemHTML({
+  outputImageBlob,
+  thumbnailDataURL,
+  outputFileNameText,
+  outputFileExtension,
+  width,
+  height,
+  fileSize,
+  fileSizeSavedTrend,
+  fileSizeSavedPercentage,
+  fileSizeSavedClass,
+}) {
+  // Create the output dom for compressed images.
+  const fileSizeInMB = fileSize / 1024 / 1024;
+  let fileSizeDisplay;
+  if (fileSizeInMB < 1) {
+    fileSizeDisplay = Math.round(fileSizeInMB * 1024) + " KB";
+  } else {
+    fileSizeDisplay = fileSizeInMB.toFixed(2) + " MB";
+  }
+  return `
+    <div class="image-output__item file-format--${outputFileExtension}" data-elevation="3">
+      <img src="${thumbnailDataURL}" class="image-output__item-thumbnail" loading="lazy">
+      <div class="image-output__item-text">
+        <div class="image-output__item-filename">
+          <span class="image-output__item-filename-start">${outputFileNameText.slice(0, -8)}</span>
+          <span class="image-output__item-filename-end">${outputFileNameText.slice(-8)}</span>
+        </div>
+        <div class="image-output__item-dimensions">
+          <div class="image-output__item-dimensions">${width}x${height}</div>
+        </div>
+      </div>
+      <div class="image-output__item-stats">
+        <span class="image-output__item-filesize" data-filesize="${fileSize}">${fileSizeDisplay}</span>
+        <span class="image-output__item-filesize-saved badge ${fileSizeSavedClass}">
+          <span class="badge-text">${fileSizeSavedTrend}${fileSizeSavedPercentage}%</span>
+        </span>
+        <span class="image-output__item-fileformat badge file-format--${outputFileExtension}">${outputFileExtension.toUpperCase()}</span>
+      </div>
+      <a class="image-output__item-download-button button-cta button-secondary"
+         data-filesize="${fileSize}"
+         href="${outputImageBlob}"
+         download="${outputFileNameText}">
+        <svg height="16" stroke-linejoin="round" viewBox="0 0 16 16" width="16" style="color: currentcolor;"><path fill-rule="evenodd" clip-rule="evenodd" d="M8.75 1V1.75V8.68934L10.7197 6.71967L11.25 6.18934L12.3107 7.25L11.7803 7.78033L8.70711 10.8536C8.31658 11.2441 7.68342 11.2441 7.29289 10.8536L4.21967 7.78033L3.68934 7.25L4.75 6.18934L5.28033 6.71967L7.25 8.68934V1.75V1H8.75ZM13.5 9.25V13.5H2.5V9.25V8.5H1V9.25V14C1 14.5523 1.44771 15 2 15H14C14.5523 15 15 14.5523 15 14V9.25V8.5H13.5V9.25Z" fill="currentColor"></path></svg>
+        <span class="xs:hidden">Download</span>
+      </a>
+    </div>
+  `;
+}

media-tools/image-converter/assets/js/ui.js

@@ -0,0 +1,291 @@
+/**
+ * TODO:
+ * - Refactor toast to reusable component to show error messages. 
+ * - Allow clear individual items and all items.
+ */
+
+let storeConfigDebounceTimer;
+
+function resetUI() {
+  // Resets the UI primarily around the dropzone area.
+  ui.actions.abort.classList.add("hidden");
+  document.body.classList.remove("compressing--is-active");
+  ui.actions.dropZone.classList.remove("hidden");
+  ui.progress.container.classList.add("hidden");
+  ui.progress.text.dataset.progress = 0;
+  ui.progress.bar.style.width = "0%";
+}
+
+function storeConfigForm() {
+  // Store form fields values to local storage.
+  const configForm = {
+    quality: ui.inputs.quality.value,
+    limitDimensions: ui.inputs.limitDimensions.value,
+    limitWeightUnit: ui.inputs.limitWeightUnit.value,
+    limitWeight: ui.inputs.limitWeight.value,
+    compressMethod: getCheckedValue(ui.inputs.compressMethod),
+    dimensionMethod: getCheckedValue(ui.inputs.dimensionMethod),
+    convertMethod: getCheckedValue(ui.inputs.formatSelect),
+  };
+
+  localStorage.setItem("configForm", JSON.stringify(configForm));
+}
+
+function storeConfigFormDebounce() {
+  // Debounce the storage of form fields values to local storage, to prevent excessive.
+  clearTimeout(storeConfigDebounceTimer);
+  storeConfigDebounceTimer = setTimeout(() => {
+    storeConfigForm();
+  }, 300);
+}
+
+function restoreConfigForm() {
+  // Restore form fields values from local storage.
+  const configForm = JSON.parse(localStorage.getItem("configForm"));
+  if (configForm) {
+    setQuality(configForm.quality);
+    setLimitDimensions(configForm.limitDimensions);
+    setWeightUnit(configForm.limitWeightUnit);
+    setWeight(configForm.limitWeight, configForm.limitWeightUnit);
+    setCompressMethod(configForm.compressMethod);
+    setDimensionMethod(configForm.dimensionMethod);
+    setConvertMethod(configForm.convertMethod);
+  }
+}
+
+function setCompressMethod(value) {
+  // Form group: Optimization method.
+  const compressMethod = value;
+
+  document.querySelector(
+    `input[name="compressMethod"][value="${compressMethod}"]`
+  ).checked = true;
+
+  document
+    .querySelectorAll("#compressMethodGroup .button-card-radio")
+    .forEach((el) => {
+      el.classList.remove("button-card-radio--is-selected");
+    });
+
+  document
+    .querySelector(
+      `#compressMethodGroup input[name="compressMethod"][value="${compressMethod}"]`
+    )
+    .closest(".button-card-radio")
+    .classList.add("button-card-radio--is-selected");
+
+    if (compressMethod === "limitWeight") {
+      ui.groups.limitWeight.classList.remove("hidden");
+      ui.groups.quality.classList.add("hidden");
+    }
+    else {
+      ui.groups.limitWeight.classList.add("hidden");
+      ui.groups.quality.classList.remove("hidden");
+    }
+
+  storeConfigFormDebounce();
+}
+
+function setDimensionMethod(value) {
+  // Form group: Dimensions method.
+  document.querySelector(
+    `input[name="dimensionMethod"][value="${value}"]`
+  ).checked = true;
+  document
+    .querySelectorAll("#dimensionsMethodGroup .button-card-radio")
+    .forEach((el) => {
+      el.classList.remove("button-card-radio--is-selected");
+    });
+  document
+    .querySelector(`input[name="dimensionMethod"][value="${value}"]`)
+    .closest(".button-card-radio")
+    .classList.add("button-card-radio--is-selected");
+
+  const resizeDimensionsField = document.getElementById(
+    "resizeDimensionsField"
+  );
+  if (value === "limit") {
+    resizeDimensionsField.classList.remove("hidden");
+  } else {
+    resizeDimensionsField.classList.add("hidden");
+  }
+
+  storeConfigFormDebounce();
+}
+
+function setQuality(value) {
+  // Form group: Quality.
+  let quality = Number(value);
+  const min = config.qualityLimit.min;
+  const max = config.qualityLimit.max;
+  if (quality > max) {
+    quality = max;
+    setSlider(max, "qualitySlider");
+  }
+  if (quality < min || isNaN(quality) || quality === "") {
+    quality = min;
+    setSlider(min, "qualitySlider");
+  }
+  else {
+    quality = Math.round(quality);
+    setSlider(quality, "qualitySlider");
+  }
+
+  ui.inputs.quality.value = quality;
+  storeConfigFormDebounce();
+}
+
+function setSlider(value, sliderId) {
+  // Form group: Slider.
+  // Update input field and slider elements 
+  const slider = document.getElementById(sliderId);
+  const fill = slider.querySelector(".slider-fill");
+  const thumb = slider.querySelector(".slider-thumb");
+  let percentage = value;
+  if (value < 0 || isNaN(value) || value === "") {
+    percentage = 0;
+  } else if (value > 100) {
+    percentage = 100;
+  }
+  fill.style.width = percentage + "%";
+  thumb.style.left = Math.min(percentage, 100) + "%";
+}
+
+function startSliderDrag(event, inputId) {
+  const slider = event.currentTarget;
+  const input = document.getElementById(inputId);
+
+  const setSliderPosition = (e) => {
+    const rect = slider.getBoundingClientRect();
+    const offsetX = e.clientX - rect.left;
+    const percentage = Math.min(Math.max((offsetX / rect.width) * 100, 0), 100);
+    input.value = Math.round(Math.min(percentage, 100));
+    setSlider(percentage, slider.id);
+  };
+
+  const onMouseMove = (e) => {
+    setSliderPosition(e);
+  };
+
+  const onMouseUp = () => {
+    document.removeEventListener("mousemove", onMouseMove);
+    document.removeEventListener("mouseup", onMouseUp);
+  };
+
+  setSliderPosition(event);
+  document.addEventListener("mousemove", onMouseMove);
+  document.addEventListener("mouseup", onMouseUp);
+
+  storeConfigFormDebounce();
+}
+
+function setLimitDimensions(value) {
+  // Form group: Limit dimensions.
+  let selectedDimension = Number(value);
+  const min = config.dimensionLimit.min;
+  const max = config.dimensionLimit.max;
+  if (selectedDimension > max) {
+    selectedDimension = max;
+  }
+  else if (selectedDimension <= 0 || isNaN(selectedDimension) || selectedDimension === "") {
+    selectedDimension = min;
+  }
+  else {
+    selectedDimension = Math.round(selectedDimension);
+  }
+
+  ui.inputs.limitDimensions.value = selectedDimension;
+  storeConfigFormDebounce();
+}
+
+function setConvertMethod(value) {
+  // Form group: Convert to format.
+  ui.inputs.formatSelect.forEach(input => {
+    input.checked = input.value === value;
+  });
+  
+  ui.groups.formatMethod.querySelectorAll(".button-card-radio").forEach(el => {
+    el.classList.remove("button-card-radio--is-selected");
+  });
+  
+  const selectedInput = Array.from(ui.inputs.formatSelect).find(input => input.value === value);
+  if (selectedInput) {
+    selectedInput.closest(".button-card-radio").classList.add("button-card-radio--is-selected");
+  }
+
+  storeConfigFormDebounce();
+}
+
+function setWeightUnit(value) {
+  // Form group: Limit weight (unit)
+  const previousUnit = state.limitWeightUnit.toUpperCase();
+  if (previousUnit === value) return;
+
+  Array.from(ui.inputs.limitWeightUnit.options).forEach(option => {
+    option.selected = option.value === value;
+  });
+
+  if (previousUnit === "KB") {
+    const kbToMb = Number(ui.inputs.limitWeight.value / 1000);
+    if (kbToMb < ui.inputs.limitWeight.value) {
+      ui.inputs.limitWeight.value = kbToMb;
+      ui.inputs.limitWeight.step = 0.1;
+    }
+  }
+  else if (previousUnit === "MB") {
+    const mbToKb = Number(ui.inputs.limitWeight.value * 1000);
+    if (mbToKb > ui.inputs.limitWeight.value) {
+      ui.inputs.limitWeight.min = 0; 
+      ui.inputs.limitWeight.step = 50;
+      ui.inputs.limitWeight.value = mbToKb;
+    }
+  }
+
+  state.limitWeightUnit = ui.inputs.limitWeightUnit.value.toUpperCase();
+  ui.labels.limitWeightSuffix.textContent = ui.inputs.limitWeightUnit.value.toUpperCase();
+  ui.labels.limitWeightSuffix.dataset.suffix = ui.inputs.limitWeightUnit.value.toUpperCase();
+
+  storeConfigFormDebounce();
+}
+
+function setWeight(weight, unit) {
+  // Form group: Limit weight
+  const { value, message } = validateWeight(
+    weight, unit
+  );
+
+  if (!value) {
+  }
+  else if (value && message) {
+    ui.inputs.limitWeight.value = value;
+  }
+  else if (value) {
+    ui.inputs.limitWeight.value = value;
+  }
+
+  ui.inputs.limitWeight.value = value;
+
+  storeConfigFormDebounce();
+}
+
+function selectSubpage(value) {
+  // Switch between "Settings", "Images".
+  ui.inputs.settingsSubpage.forEach(input => {
+    input.checked = input.value === value;
+  });
+  
+  ui.groups.settingsSubpage.querySelectorAll(".segmented-control").forEach(el => {
+    el.classList.remove("segmented-control--is-selected");
+  });
+  
+  const selectedInput = Array.from(ui.inputs.settingsSubpage).find(input => input.value === value);
+  if (selectedInput) {
+    selectedInput.closest(".segmented-control").classList.add("segmented-control--is-selected");
+  }
+  
+  document.body.className = document.body.className.replace(/\bsubpage--\S+/g, "");
+  document.body.classList.add(`subpage--${value}`);
+
+  storeConfigFormDebounce();
+}
+

media-tools/image-converter/assets/js/utilities.js

@@ -0,0 +1,206 @@
+function isFileTypeSupported(fileType, file) {
+  // Check for supported file types
+
+  if (HeicTo.isHeic(file) && isHeicExt(file)) {
+    fileType = "image/heic";
+    ui.outputFileType = "image/heic";
+    console.log('File type is HEIC: ', fileType)
+  }
+
+  const supportedFileTypes = [
+    "image/jpeg",
+    "image/png",
+    "image/webp",
+    "image/heic",
+    "image/heif",
+    "image/avif",
+    "image/gif",
+    "image/svg+xml",
+    "image/jxl",
+  ];
+
+  return supportedFileTypes.includes(fileType);
+}
+
+function mimeToExtension(mimeType) {
+  const fileExtensionMap = {
+    "image/jpeg": "jpg",
+    "image/png": "png",
+    "image/webp": "webp",
+    "image/heic": "heic",
+    "image/heic": "heif",
+    "image/avif": "avif",
+    "image/gif": "gif",
+    "image/svg+xml": "svg",
+    "image/jxl": "jxl",
+  };
+
+  return (
+    fileExtensionMap[mimeType] || mimeType.replace("image/", "").split("+")[0]
+  );
+}
+
+function defaultConversionMapping(mimeType) {
+  const conversionMap = {
+    // Image file types that cannot be compressed to its original file format
+    // are converted to a relevant counterpart.
+    "image/heic": "image/png",
+    "image/heif": "image/png",
+    "image/avif": "image/png",
+    "image/gif": "image/png",
+    "image/svg+xml": "image/png",
+    "image/jxl": "image/png",
+  };
+
+  console.log('Input mimeType ', mimeType);
+  console.log('Mapped mimeType ', conversionMap[mimeType]);
+
+  return conversionMap[mimeType] || mimeType;
+}
+
+function isHeicExt(file) {
+  // Checks if file name ending with `.heic` or `.heif`.
+  const fileName = file.name.toLowerCase();
+  return fileName.endsWith('.heic') || fileName.endsWith('.heif');
+}
+
+function isFileExt(file, extension = "") {
+  // Checks if file name ending with the passed string argument.
+  const fileName = file.name.toLowerCase();
+  return fileName.endsWith(`.${extension}`);
+}
+
+function getFileType(file) {
+  let selectedFormat = document.querySelector('input[name="formatSelect"]:checked').value; // User-selected format to convert to, e.g. "image/jpeg".
+  let inputFileExtension = ""; // User-uploaded image's file extension, e.g. `.jpg`.
+  let outputFileExtension = ""; // The processed image's file extension, based on `defaultConversionMapping()`.
+
+  if (selectedFormat && selectedFormat !== "default") {
+    // The user-selected format to convert to.
+    const extension = mimeToExtension(selectedFormat);
+    inputFileExtension = extension;
+    outputFileExtension = extension;
+  } else {
+    // User has not selected a file format, use the input image's file type.
+    selectedFormat = file.type ? file.type : "png";
+    file.type = !file.type && isHeicExt(file) ? "image/heic" : "";
+    inputFileExtension = mimeToExtension(file.type) || "";
+
+    console.log("inputFileExtension: ", inputFileExtension);
+    outputFileExtension = mimeToExtension(defaultConversionMapping(file.type));
+    console.log("outputFileExtension: ", outputFileExtension);
+  }
+
+  return {
+    inputFileExtension,
+    outputFileExtension,
+    selectedFormat,
+  };
+}
+
+function updateFileExtension(originalName, fileExtension, selectedFormat) {
+  const baseName = originalName.replace(/\.[^/.]+$/, "");
+  const newExtension = selectedFormat
+    ? mimeToExtension(fileExtension)
+    : fileExtension;
+
+  console.log('New image extension: ', newExtension);
+  return `${baseName}.${newExtension}`;
+}
+
+function appendFileNameId(fileName = "image") {
+  if (typeof fileName !== 'string') return null;
+
+  const lastDotIndex = fileName.lastIndexOf('.');
+  const fileExt = (lastDotIndex === -1 || lastDotIndex === 0) ? '' : fileName.slice(lastDotIndex).toLowerCase();
+  const baseFileName = (lastDotIndex === -1) ? fileName : fileName.slice(0, lastDotIndex);
+
+  const fileId = Math.random().toString(36).substring(2, 6).toUpperCase();
+  return baseFileName + "-" + fileId + fileExt;
+}
+
+function renameBrowserDefaultFileName(fileName) {
+  // Naive approach to check if an image was pasted from clipboard and received a default name by the browser,
+  // e.g., `image.png`. This method is potentially browser and language-dependent, if naming conventions vary.
+  // `HEIF Image.heic` concerns iOS devices, e.g. when drag-and-dropping a subject cut-out.
+  const defaultNames = [/^image\.\w+$/i, /^heif image\.heic$/i];
+
+  if (defaultNames.some(regex => regex.test(fileName))) {
+    return { renamedFileName: appendFileNameId(fileName), isBrowserDefaultFileName: true };
+  }
+  return { renamedFileName: fileName, isBrowserDefaultFileName: false };
+}
+
+function validateWeight(value, unit = "MB") {
+  value = Number(value);
+  let [min, max] = [config.weightLimit.min, config.weightLimit.max];
+  min = unit.toUpperCase() === "KB" ? min * 1000 : min; 
+  max = unit.toUpperCase() === "KB" ? max * 1000 : max; 
+
+  if (typeof value !== 'number' || isNaN(value) || !Number.isFinite(value)) {
+    const message = "Invalid value, not a number.";
+    return {value: null, message}
+  }
+  else if (value < min) {
+    const message = `Minimum file size is ${min * 1000}KB or ${max}MB.`;
+    return {value: min, message}
+  }
+  else if (value > max) {
+    const message = `Max file size is ${max}MB.`;
+    return {value: max, message}
+  }
+
+  return {value, message: null}
+}
+
+function getCheckedValue(nodeList) {
+  // Find the currently select radio button value.
+  return [...nodeList].find((el) => el.checked)?.value || null;
+}
+
+function getImageDimensions(imageInput, callback) {
+  const img = new Image();
+
+  if (imageInput instanceof Blob) {
+    img.src = URL.createObjectURL(imageInput);
+  }
+  else if (typeof imageInput === "string") {
+    img.src = imageInput;
+  }
+  else {
+    console.error("Invalid input provided to getImageDimensions.");
+    callback(null);
+    return;
+  }
+
+  img.onload = () => callback({ width: img.naturalWidth, height: img.naturalHeight });
+  img.onerror = () => callback(null);
+}
+
+function getAdjustedDimensions(imageBlob, desiredLimitDimensions) {
+  // Adjusts image dimensions to prevent the short edge from being 0.
+  // Calculates the minimum long edge based on a 1px short edge while keeping aspect ratio.
+  return new Promise((resolve) => {
+    getImageDimensions(imageBlob, ({ width, height }) => {
+      if (!width || !height) {
+        resolve(undefined);
+        return;
+      }
+      const shortEdge = Math.min(width, height);
+      const longEdge = Math.max(width, height);
+      const shortEdgeMin = 1;
+      const minAllowedDimension = longEdge * (shortEdgeMin / shortEdge);
+      const limitDimensionsValue = desiredLimitDimensions > Math.ceil(minAllowedDimension) ? desiredLimitDimensions : Math.ceil(minAllowedDimension);
+      resolve(limitDimensionsValue);
+    });
+  });
+}
+
+function debugBlobImageOutput(blob) {
+  const blobURL = URL.createObjectURL(blob);
+  const img = document.createElement("img");
+  img.src = blobURL;
+  img.style.maxWidth = "100%";
+  img.style.display = "block";
+  document.body.prepend(img);
+}