From ad3a3ddb722ad506359aebfaaa150f9e4de80a6d Mon Sep 17 00:00:00 2001
From: arabcoders <admin@arabcoders.org>
Date: Wed, 12 Nov 2025 17:48:43 +0300
Subject: [PATCH] Feat: add drop file support for cookies field.

---
 ui/app/components/NewDownload.vue          |  28 ++-
 ui/app/components/PresetForm.vue           |  11 +-
 ui/app/components/TextDropzone.vue         | 246 +++++++++++++++++++++
 ui/app/components/TextareaAutocomplete.vue |   2 +-
 4 files changed, 268 insertions(+), 19 deletions(-)
 create mode 100644 ui/app/components/TextDropzone.vue

diff --git a/ui/app/components/NewDownload.vue b/ui/app/components/NewDownload.vue
index dffddd99..13c0e85c 100644
--- a/ui/app/components/NewDownload.vue
+++ b/ui/app/components/NewDownload.vue
@@ -136,19 +136,23 @@
             </div>
 
             <div class="column is-6-tablet is-12-mobile">
-              <DLInput id="ytdlpCookies" type="text" label="Cookies" v-model="form.cookies" icon="fa-solid fa-cookie"
-                :disabled="!socket.isConnected || addInProgress" :placeholder="getDefault('cookies', '')">
-                <template #help>
-                  <span class="help is-bold">
-                    <span class="icon"><i class="fa-solid fa-info" /></span>
-                    <span>Use the <NuxtLink target="_blank"
-                        to="https://github.com/yt-dlp/yt-dlp/wiki/FAQ#how-do-i-pass-cookies-to-yt-dlp">
-                        Recommended addon</NuxtLink> by yt-dlp to export cookies. <span class="has-text-danger">The
-                        cookies MUST be in Netscape HTTP Cookie format.</span>
-                    </span>
+              <div class="field">
+                <label class="label is-unselectable" for="ytdlpCookies">
+                  <span class="icon"><i class="fa-solid fa-cookie" /></span>
+                  <span>Cookies</span>
+                </label>
+                <TextDropzone id="ytdlpCookies" v-model="form.cookies" :disabled="!socket.isConnected || addInProgress"
+                  @error="(msg: string) => toast.error(msg)"
+                  :placeholder="getDefault('cookies', 'Leave empty to use default cookies. Or drag & drop a cookie file here.')" />
+                <span class="help is-bold">
+                  <span class="icon"><i class="fa-solid fa-info" /></span>
+                  <span>Use the <NuxtLink target="_blank"
+                      to="https://github.com/yt-dlp/yt-dlp/wiki/FAQ#how-do-i-pass-cookies-to-yt-dlp">
+                      Recommended addon</NuxtLink> by yt-dlp to export cookies. <span class="has-text-danger">The
+                      cookies MUST be in Netscape HTTP Cookie format.</span>
                   </span>
-                </template>
-              </DLInput>
+                </span>
+              </div>
             </div>
             <template v-if="config.dl_fields.length > 0">
               <div class="column is-6-tablet is-12-mobile" v-for="(fi, index) in sortedDLFields"
diff --git a/ui/app/components/PresetForm.vue b/ui/app/components/PresetForm.vue
index d00a4465..90119b39 100644
--- a/ui/app/components/PresetForm.vue
+++ b/ui/app/components/PresetForm.vue
@@ -134,10 +134,8 @@
                   <span class="help is-bold">
                     <span class="icon"><i class="fa-solid fa-info" /></span>
                     <span>Use this output template if non are given with URL. if not set, it will defaults to
-                      <code>{{ config.app.output_template }}</code>.
-                      For more information visit <NuxtLink href="https://github.com/yt-dlp/yt-dlp#output-template"
-                        target="_blank">
-                        this page</NuxtLink>.
+                      <code>{{ config.app.output_template }}</code>. For more information visit <NuxtLink
+                        href="https://github.com/yt-dlp/yt-dlp#output-template" target="_blank">this page</NuxtLink>.
                     </span>
                   </span>
                 </div>
@@ -170,8 +168,9 @@
                     Cookies
                   </label>
                   <div class="control">
-                    <textarea class="textarea is-pre" id="cookies" v-model="form.cookies" :disabled="addInProgress"
-                      placeholder="Leave empty to use default cookies" />
+                    <TextDropzone id="cookies" v-model="form.cookies" :disabled="addInProgress"
+                      @error="(msg: string) => toast.error(msg)"
+                      placeholder="Leave empty to use default cookies. Or drag & drop a cookie file here." />
                   </div>
                   <span class="help is-bold">
                     <span class="icon"><i class="fa-solid fa-info" /></span>
diff --git a/ui/app/components/TextDropzone.vue b/ui/app/components/TextDropzone.vue
new file mode 100644
index 00000000..68ad668d
--- /dev/null
+++ b/ui/app/components/TextDropzone.vue
@@ -0,0 +1,246 @@
+<template>
+  <div class="file-dropzone is-relative" :class="{ 'is-dragging': isDragging }" @drop.prevent="handleDrop"
+    @dragover.prevent="handleDragOver" @dragenter.prevent="handleDragEnter" @dragleave.prevent="handleDragLeave"
+    @click="handleClick">
+
+    <textarea ref="textareaRef" class="control textarea is-fullwidth" :class="{ 'is-focused': isDragging }"
+      :value="model" @input="handleInput" :disabled="disabled" :placeholder="placeholder" :id="id" />
+
+    <div v-if="isDragging"
+      class="dropzone-overlay has-background-success-90 is-flex is-align-items-center is-justify-content-center">
+      <div class="has-text-centered has-text-dark">
+        <span class="icon is-large"><i class="fa-solid fa-file-arrow-down fa-3x" /></span>
+        <p class="mt-3 is-size-5 has-text-weight-bold">Drop file here</p>
+      </div>
+    </div>
+
+    <input ref="fileInputRef" type="file" :accept="accept" @change="handleFileSelect" style="display: none" />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref } from 'vue'
+
+interface Props {
+  disabled?: boolean
+  placeholder?: string
+  id?: string
+  accept?: string
+  maxSize?: number
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  disabled: false,
+  placeholder: '',
+  id: '',
+  accept: '',
+  maxSize: 2 * 1024 * 1024
+})
+
+const model = defineModel<string>({ default: '' })
+
+const emit = defineEmits<{ error: [message: string] }>()
+
+const textareaRef = ref<HTMLTextAreaElement | null>(null)
+const fileInputRef = ref<HTMLInputElement | null>(null)
+const isDragging = ref<boolean>(false)
+const dragCounter = ref<number>(0)
+
+const handleInput = (event: Event): void => {
+  const target = event.target as HTMLTextAreaElement
+  model.value = target.value
+}
+
+const handleDragEnter = (event: DragEvent): void => {
+  if (props.disabled) {
+    return
+  }
+
+  dragCounter.value++
+  if (event.dataTransfer?.types.includes('Files')) {
+    isDragging.value = true
+  }
+}
+
+const handleDragLeave = (_event: DragEvent): void => {
+  if (props.disabled) {
+    return
+  }
+
+  dragCounter.value--
+  if (0 === dragCounter.value) {
+    isDragging.value = false
+  }
+}
+
+const handleDragOver = (event: DragEvent): void => {
+  if (props.disabled) {
+    return
+  }
+
+  if (event.dataTransfer) {
+    event.dataTransfer.dropEffect = 'copy'
+  }
+}
+
+const handleDrop = async (event: DragEvent): Promise<void> => {
+  if (props.disabled) {
+    return
+  }
+
+  isDragging.value = false
+  dragCounter.value = 0
+
+  const files = event.dataTransfer?.files
+  if (!files || 0 === files.length) {
+    return
+  }
+
+  const file = files[0]
+  if (file) {
+    await processFile(file)
+  }
+}
+
+const handleClick = (event: MouseEvent): void => {
+  if (props.disabled) {
+    return
+  }
+
+  const selection = window.getSelection()
+  if (selection && selection.toString().length > 0) {
+    return
+  }
+
+  if (event && event.target === textareaRef.value) {
+    return
+  }
+}
+
+const handleFileSelect = async (event: Event): Promise<void> => {
+  const target = event.target as HTMLInputElement
+  const files = target.files
+
+  if (!files || 0 === files.length) {
+    return
+  }
+
+  const file = files[0]
+  if (file) {
+    await processFile(file)
+  }
+
+  if (fileInputRef.value) {
+    fileInputRef.value.value = ''
+  }
+}
+
+const processFile = async (file: File): Promise<void> => {
+  try {
+    if (file.size > props.maxSize) {
+      const sizeMB = (file.size / 1024 / 1024).toFixed(2)
+      const maxSizeMB = (props.maxSize / 1024 / 1024).toFixed(2)
+      const errorMsg = `File too large: ${sizeMB}MB. Maximum allowed size is ${maxSizeMB}MB.`
+      emit('error', errorMsg)
+      console.error(errorMsg)
+      return
+    }
+
+    const isBinary = await checkIfBinary(file)
+    if (isBinary) {
+      const errorMsg = 'File appears to be binary. Please provide a text file.'
+      emit('error', errorMsg)
+      console.error(errorMsg)
+      return
+    }
+
+    const text = await readFileAsText(file)
+    model.value = text
+  } catch (error) {
+    const errorMsg = error instanceof Error ? error.message : 'Failed to read file'
+    emit('error', errorMsg)
+    console.error('Failed to read file:', error)
+  }
+}
+
+const checkIfBinary = async (file: File): Promise<boolean> => {
+  const chunkSize = 8192
+  const blob = file.slice(0, chunkSize)
+
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader()
+
+    reader.onload = (e: ProgressEvent<FileReader>) => {
+      if (!e.target?.result) {
+        resolve(false)
+        return
+      }
+
+      const bytes = new Uint8Array(e.target.result as ArrayBuffer)
+
+      let nullBytes = 0
+      let nonPrintable = 0
+
+      for (let i = 0; i < bytes.length; i++) {
+        const byte = bytes[i]
+
+        if (undefined === byte) {
+          continue
+        }
+
+        if (0 === byte) {
+          nullBytes++
+        }
+
+        if (9 !== byte && 10 !== byte && 13 !== byte && (byte < 32 || byte > 126)) {
+          nonPrintable++
+        }
+      }
+
+      resolve(nullBytes > 0 || (nonPrintable / bytes.length) > 0.3)
+    }
+
+    reader.onerror = () => reject(new Error('Failed to read file for binary check'))
+    reader.readAsArrayBuffer(blob)
+  })
+}
+
+const readFileAsText = (file: File): Promise<string> => {
+  return new Promise((resolve, reject) => {
+    const reader = new FileReader()
+
+    reader.onload = (e: ProgressEvent<FileReader>) => {
+      if (e.target?.result) {
+        resolve(e.target.result as string)
+      } else {
+        reject(new Error('Failed to read file'))
+      }
+    }
+
+    reader.onerror = () => reject(new Error('File reading error'))
+    reader.readAsText(file)
+  })
+}
+</script>
+
+<style>
+.file-dropzone {
+  cursor: text;
+}
+
+.dropzone-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  border-radius: 4px;
+  pointer-events: none;
+  z-index: 10;
+}
+
+.file-dropzone.is-dragging textarea {
+  box-shadow: --var(--bulma-card-shadow) !important;
+  border-color: --var(--bulma-success);
+}
+</style>
diff --git a/ui/app/components/TextareaAutocomplete.vue b/ui/app/components/TextareaAutocomplete.vue
index 480427d5..293b8bec 100644
--- a/ui/app/components/TextareaAutocomplete.vue
+++ b/ui/app/components/TextareaAutocomplete.vue
@@ -3,7 +3,7 @@
     <div class="control" style="width:100%;">
       <textarea :id="id" ref="textareaRef" v-model="localValue" @input="onInput" @focus="onFocus" @blur="hideList"
         @keydown="onKeydown" @keyup="updateCaret" @click="updateCaret" @mouseup="updateCaret"
-        class="textarea" :placeholder="placeholder" autocomplete="off"
+        class="control is-fullwidth textarea" :placeholder="placeholder" autocomplete="off"
         style="width:100%; position:relative; z-index:2;" rows="4" :disabled="disabled" />
     </div>
     <div class="dropdown-menu" role="menu" style="width:100%; z-index:3;">