feat: add drag-and-drop in web interface (#5082)

web/assets/css/transmission-app.scss

@@ -4,9 +4,11 @@
 // Colors related to torrent status
 $blue-100: #dbedff;
 $blue-300: #79b8ff;
+$blue-500: #0366d6;
 $green-200: #bef5cb;
 $green-300: #85e89d;
 $green-500: #28a745;
+$green-700: #22863a;
 $grey-200: #e1e4e8;
 $grey-500: #828282;
 $grey-700: #373737;
@@ -14,6 +16,7 @@ $grey-800: #292929;
 $grey-900: #191919;
 $red-500: #d73a49;
 $white: #fff;
+$dark-mode-white: #c9d1d9;
 $yellow-300: #ffea7f;
 $grey-40: #666;
 $nice-grey: #f8f8f8;
@@ -82,7 +85,7 @@ $image-play-circle-idle: '../img/play-circle-idle.svg';
 
   @media (prefers-color-scheme: dark) {
     --color-bg-hover: #{$grey-40};
-    --color-fg-primary: #fff;
+    --color-fg-primary: #{$dark-mode-white};
     --color-bg-primary: #{$grey-800};
     --color-bg-primary-hover: #{$grey-700};
     --color-bg-odd: #{$grey-900};
@@ -90,29 +93,38 @@ $image-play-circle-idle: '../img/play-circle-idle.svg';
     --color-bg-menu: #{$grey-800};
     --color-fg-secondary: #{$nice-grey};
     --color-fg-on-popup: #{$nice-grey};
-    --color-fg-disabled: #{$nice-grey};
+    --color-fg-disabled: #{$dark-mode-white};
     --color-bg-popup: #{$grey-800};
     --color-bg-warn: #cf6679;
     --color-fg-warn: #{$dark-mode-black};
-    --color-border: #{$nice-grey};
-    --color-border-selected: #d0d7de;
+    --color-border: #{$dark-mode-white};
+    --color-border-selected: #{$grey-500};
     --color-fg-tertiary: #{$grey-500};
     --color-toolbar-background: #{$grey-800};
     --color-inspector-background: #{$grey-800};
     --color-inspector-tabs: #{$nice-grey};
     --color-bg-selected: #{$default-accent-color-dark};
     --color-bg-tabs: #{$grey-700};
-    --color-progressbar-background-1: #426389;
     --color-default-border: #{$default-border-dark};
-    --color-progressbar-seed-1: #{$green-500};
-    --color-progressbar-seed-2: #{$green-300};
+    --color-progressbar-seed-1: #{$green-700};
+    --color-progressbar-seed-2: #{$green-500};
     --color-progressbar-paused: #{$grey-500};
+    --color-progressbar-leech: #{$blue-500};
     --color-progressbar-seed-paused: #{$grey-500};
   }
   @media (prefers-color-scheme: light) {
+    --progress: 100%;
+    --color-fg-error: #{$red-500};
+    --color-fg-port-closed: #{$red-500};
+    --color-fg-port-open: #{$green-500};
+    --color-progressbar-verify: #{$yellow-300};
+    --color-progressbar-magnet: #{$yellow-300};
+    --color-progressbar-paused: #{$grey-200};
+    --color-progressbar-leech: #{$blue-300};
+    --color-progressbar-queued: #{$blue-100};
     --color-bg-hover: #{$nice-grey};
     --color-fg-primary: #404040;
-    --color-bg-primary: #fff;
+    --color-bg-primary: #{$white};
     --color-bg-even: #{$white};
     --color-bg-odd: #{$nice-grey};
     --color-bg-menu: #{$nice-grey};
@@ -130,7 +142,6 @@ $image-play-circle-idle: '../img/play-circle-idle.svg';
     --color-bg-tabs: #{$nice-grey-darker};
     --color-inspector-tabs: #{$nice-grey};
     --color-bg-selected: #{$default-accent-color};
-    --color-progressbar-background-1: #{$nice-grey};
     --color-default-border: #{$default-border-light};
     --color-dialog-border: #{$nice-grey};
     --color-progressbar-seed-1: #{$green-300};
@@ -467,7 +478,7 @@ $video-image: '../img/film.svg';
     .torrent-progress-details,
     .torrent-peer-details {
       color: var(--color-fg-primary);
-      font-size: x-small;
+      font-size: small;
     }
 
     &.compact {
@@ -880,6 +891,7 @@ $video-image: '../img/film.svg';
     border: 1px solid transparent;
     border-radius: 6px;
     color: var(--color-fg-primary);
+    font-weight: 400;
   }
 }
 
@@ -908,7 +920,6 @@ $video-image: '../img/film.svg';
     background-color: var(--color-bg-even);
     border: 1px solid var(--color-fg-primary);
     border-radius: 6px;
-    font-weight: 500;
   }
 }
 
@@ -1314,6 +1325,7 @@ $video-image: '../img/film.svg';
   a,
   button,
   label {
+    color: var(--color-fg-primary);
     display: inline-flex;
     font-size: 1em;
     width: 100%;
@@ -1646,18 +1658,28 @@ dialog {
   font-style: italic;
 }
 
-#torrent-upload-frame {
-  border: 0;
-  display: block; /* Don't change this : safari forms won't target hidden frames (they open a new window) */
-  height: 0;
-  left: -1000px;
-  margin: 0;
-  padding: 0;
-  position: absolute;
-  top: -1000px;
-  width: 0;
-}
-
 .ui-menu {
   width: 200px;
 }
+
+.upload-div {
+  display: none;
+}
+
+.dropzone {
+  background: var(--color-bg-primary);
+  border: 2px dashed var(--color-border);
+  border-radius: 5px;
+  color: var(--color-fg-primary);
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+  font-size: 1.2em;
+  font-weight: bold;
+  height: 100%;
+  justify-content: center;
+  margin: 0;
+  padding: 0;
+  text-align: center;
+  width: 100%;
+}

web/public_html/index.html

@@ -212,12 +212,9 @@
         </div>
       </main>
 
-      <iframe
-        name="torrent-upload-frame"
-        id="torrent-upload-frame"
-        src="about:blank"
-        title="Add Torrent"
-      ></iframe>
+      <div class="upload-div">
+        <h2>Drag your torrent files here to add them to Transmission.</h2>
+      </div>
     </div>
   </body>
 </html>

web/src/open-dialog.js

@@ -8,7 +8,7 @@ import { Formatter } from './formatter.js';
 import { createDialogContainer, makeUUID } from './utils.js';
 
 export class OpenDialog extends EventTarget {
-  constructor(controller, remote, url = '') {
+  constructor(controller, remote, url = '', files = []) {
     super();
 
     this.controller = controller;
@@ -17,8 +17,11 @@ export class OpenDialog extends EventTarget {
     this.elements = this._create(url);
     this.elements.dismiss.addEventListener('click', () => this._onDismiss());
     this.elements.confirm.addEventListener('click', () => this._onConfirm());
-    this._updateFreeSpaceInAddDialog();
     document.body.append(this.elements.root);
+    if (files.length > 0) {
+      this.elements.file_input.files = files;
+    }
+    this._updateFreeSpaceInAddDialog();
     this.elements.url_input.focus();
   }
 

web/src/transmission.js

@@ -557,7 +557,10 @@ export class Transmission extends EventTarget {
   static _dragenter(event_) {
     if (event_.dataTransfer && event_.dataTransfer.types) {
       const copy_types = new Set(['text/uri-list', 'text/plain']);
-      if (event_.dataTransfer.types.some((type) => copy_types.has(type))) {
+      if (
+        event_.dataTransfer.types.some((type) => copy_types.has(type)) ||
+        event_.dataTransfer.types.includes('Files')
+      ) {
         event_.stopPropagation();
         event_.preventDefault();
         event_.dataTransfer.dropEffect = 'copy';
@@ -589,8 +592,8 @@ export class Transmission extends EventTarget {
       return true;
     }
 
-    const type = event_.data.Transfer.types
-      .filter((t) => ['text/uri-list', 'text/plain'].contains(t))
+    const type = event_.dataTransfer.types
+      .filter((t) => ['text/uri-list', 'text/plain'].includes(t))
       .pop();
     for (const uri of event_.dataTransfer
       .getData(type)
@@ -600,6 +603,11 @@ export class Transmission extends EventTarget {
       this.remote.addTorrentByUrl(uri, paused);
     }
 
+    const { files } = event_.dataTransfer;
+
+    if (files.length > 0) {
+      this.openDialog = new OpenDialog(this, this.remote, '', files);
+    }
     event_.preventDefault();
     return false;
   }