Drag and drop w/ folders support in chat

src/components/chat/dragAndDrop.ts

@@ -0,0 +1,86 @@
+import { generatePathData } from "../../helpers/dom";
+
+export default class ChatDragAndDrop {
+  container: HTMLDivElement;
+  svg: SVGSVGElement;
+  outlineWrapper: HTMLDivElement;
+  path: SVGPathElement;
+
+  constructor(appendTo: HTMLElement, private options: {
+    icon: string,
+    header: string,
+    subtitle: string,
+    onDrop: (e: DragEvent) => void
+  }) {
+    this.container = document.createElement('div');
+    this.container.classList.add('drop', 'z-depth-1');
+
+    this.outlineWrapper = document.createElement('div');
+    this.outlineWrapper.classList.add('drop-outline-wrapper');
+
+    this.svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
+    this.svg.classList.add('drop-outline');
+
+    this.path = document.createElementNS('http://www.w3.org/2000/svg', 'path');
+    this.path.classList.add('drop-outline-path');
+
+    const dropIcon = document.createElement('div');
+    dropIcon.classList.add('drop-icon', 'tgico-' + options.icon);
+
+    const dropHeader = document.createElement('div');
+    dropHeader.classList.add('drop-header');
+    dropHeader.innerHTML = options.header;//'Drop files here to send them';
+
+    const dropSubtitle = document.createElement('div');
+    dropSubtitle.classList.add('drop-subtitle');
+    dropSubtitle.innerHTML = options.subtitle;//'without compression';
+
+    this.svg.append(this.path);
+    this.outlineWrapper.append(this.svg);
+
+    this.container.append(this.outlineWrapper, dropIcon, dropHeader, dropSubtitle);
+    appendTo.append(this.container);
+
+    this.container.addEventListener('dragover', this.onDragOver);
+    this.container.addEventListener('dragleave', this.onDragLeave);
+    this.container.addEventListener('drop', this.onDrop);
+  }
+
+  onDragOver = (e: DragEvent) => {
+    this.container.classList.add('is-dragover');
+    //SetTransition(this.container, 'is-dragover', true, 500);
+  };
+
+  onDragLeave = (e: DragEvent) => {
+    this.container.classList.remove('is-dragover');
+    //SetTransition(this.container, 'is-dragover', false, 500);
+  };
+
+  onDrop = (e: DragEvent) => {
+    this.options.onDrop(e);
+  };
+
+  destroy() {
+    delete this.options;
+    this.container.remove();
+    this.container.removeEventListener('dragover', this.onDragOver);
+    this.container.removeEventListener('dragleave', this.onDragLeave);
+    this.container.removeEventListener('drop', this.onDrop);
+  }
+
+  setPath() {
+    const rect = this.outlineWrapper.getBoundingClientRect();
+    this.svg.setAttributeNS(null, 'preserveAspectRatio', 'none');
+    this.svg.setAttributeNS(null, 'viewBox', `0 0 ${rect.width} ${rect.height}`);
+    this.svg.setAttributeNS(null, 'width', `${rect.width}`);
+    this.svg.setAttributeNS(null, 'height', `${rect.height}`);
+
+    const radius = 10;
+    //const strokeWidth = 2;
+    const sizeX = rect.width - radius;
+    const sizeY = rect.height - radius;
+    const pos = radius / 2;
+    const d = generatePathData(pos, pos, sizeX, sizeY, radius, radius, radius, radius);
+    this.path.setAttributeNS(null, 'd', d);
+  }
+}

src/helpers/dom.ts

@@ -321,6 +321,8 @@ export function generatePathData(x: number, y: number, width: number, height: nu
   return data.join(' ');
 };
 
+MOUNT_CLASS_TO && (MOUNT_CLASS_TO.generatePathData = generatePathData);
+
 //export function findUpClassName<T>(el: any, className: string): T;
 export function findUpClassName(el: any, className: string): HTMLElement {
   return el.closest('.' + className);
@@ -590,3 +592,65 @@ export const getElementByPoint = (container: HTMLElement, verticalSide: 'top' |
   const y = verticalSide == 'bottom' ? Math.floor(rect.top + rect.height - 1) : Math.ceil(rect.top + 1);
   return document.elementFromPoint(x, y) as any;
 };
+
+export async function getFilesFromEvent(e: ClipboardEvent | DragEvent, onlyTypes = false): Promise<any[]> {
+  const files: any[] = [];
+
+  const scanFiles = async(item: any) => {
+    if(item.isDirectory) {
+      const directoryReader = item.createReader();
+      await new Promise((resolve, reject) => {
+        directoryReader.readEntries(async(entries: any) => {
+          for(const entry of entries) {
+            await scanFiles(entry);
+          }
+
+          resolve();
+        });
+      });
+    } else if(item) {
+      if(onlyTypes) {
+        files.push(item.type);
+      } else {
+        const file = item instanceof File ? 
+          item : 
+          (
+            item instanceof DataTransferItem ? 
+              item.getAsFile() : 
+              await new Promise((resolve, reject) => item.file(resolve, reject))
+          );
+
+        /* if(!onlyTypes) {
+          console.log('getFilesFromEvent: got file', item, file);
+        } */
+
+        if(!file) return;
+        files.push(file);
+      }
+    }
+  };
+
+  if(e instanceof DragEvent && e.dataTransfer.files && !e.dataTransfer.items) {
+    for(let i = 0; i < e.dataTransfer.files.length; i++) {
+      const file = e.dataTransfer.files[i];
+      files.push(onlyTypes ? file.type : file);
+    }
+  } else {
+    // @ts-ignore
+    const items = (e.dataTransfer || e.clipboardData || e.originalEvent.clipboardData).items;
+
+    for(let i = 0; i < items.length; ++i) {
+      const item: DataTransferItem = items[i];
+      if(item.kind === 'file') {
+        const entry = onlyTypes ? item : item.webkitGetAsEntry() || item.getAsFile();
+        await scanFiles(entry);
+      }
+    }
+  }
+
+  /* if(!onlyTypes) {
+    console.log('getFilesFromEvent: got files:', e, files);
+  } */
+  
+  return files;
+}

src/lib/appManagers/appImManager.ts

@@ -20,13 +20,16 @@ import appPhotosManager from './appPhotosManager';
 import appProfileManager from './appProfileManager';
 import appStickersManager from './appStickersManager';
 import appWebPagesManager from './appWebPagesManager';
-import { cancelEvent, placeCaretAtEnd } from '../../helpers/dom';
+import { cancelEvent, findUpClassName, generatePathData, getFilesFromEvent, placeCaretAtEnd } from '../../helpers/dom';
 import PopupNewMedia from '../../components/popupNewMedia';
 import { TransitionSlider } from '../../components/transition';
 import { numberWithCommas } from '../../helpers/number';
 import MarkupTooltip from '../../components/chat/markupTooltip';
 import { isTouchSupported } from '../../helpers/touchSupport';
 import appPollsManager from './appPollsManager';
+import SetTransition from '../../components/singleTransition';
+import { isSafari } from '../../helpers/userAgent';
+import ChatDragAndDrop from '../../components/chat/dragAndDrop';
 
 //console.log('appImManager included33!');
 
@@ -199,40 +202,134 @@ export class AppImManager {
     
     document.body.addEventListener('keydown', onKeyDown);
 
+    if(!isTouchSupported) {
+      this.attachDragAndDropListeners();
+    }
+
     if(!isTouchSupported) {
       this.markupTooltip = new MarkupTooltip(this);
       this.markupTooltip.handleSelection();
     }
   }
 
-  private onDocumentPaste = (e: ClipboardEvent) => {
+  private attachDragAndDropListeners() {
+    const drops: ChatDragAndDrop[] = [];
+    let mounted = false;
+    const toggle = async(e: DragEvent, mount: boolean) => {
+      if(mount == mounted) return;
+
+      if(mount && !drops.length) {
+        const types: string[] = await getFilesFromEvent(e, true)
+        const isFiles = e.dataTransfer.types[0] === 'Files' && !types.length; // * can't get file items not from 'drop' on Safari
+        
+        const foundMedia = types.filter(t => ['image', 'video'].includes(t.split('/')[0])).length;
+        const foundDocuments = types.length - foundMedia;
+  
+        this.log('drag files', types);
+        
+        if(types.length || isFiles) {
+          drops.push(new ChatDragAndDrop(dropsContainer, {
+            icon: 'dragfiles',
+            header: 'Drop files here to send them',
+            subtitle: 'without compression',
+            onDrop: (e: DragEvent) => {
+              toggle(e, false);
+              appImManager.log('drop', e);
+              appImManager.onDocumentPaste(e, 'document');
+            }
+          }));
+        }
+  
+        if((foundMedia && !foundDocuments) || isFiles) {
+          drops.push(new ChatDragAndDrop(dropsContainer, {
+            icon: 'dragmedia',
+            header: 'Drop files here to send them',
+            subtitle: 'in a quick way',
+            onDrop: (e: DragEvent) => {
+              toggle(e, false);
+              appImManager.log('drop', e);
+              appImManager.onDocumentPaste(e, 'media');
+            }
+          }));
+        }
+  
+        this.chat.container.append(dropsContainer);
+      }
+
+      //if(!mount) return;
+
+      SetTransition(dropsContainer, 'is-visible', mount, 200, () => {
+        if(!mount) {
+          drops.forEach(drop => {
+            drop.destroy();
+          });
+
+          drops.length = 0;
+        }
+      });
+
+      if(mount) {
+        drops.forEach(drop => {
+          drop.setPath();
+        });
+      } else {
+        counter = 0;
+      }
+
+      document.body.classList.toggle('is-dragging', mount);
+      mounted = mount;
+    };
+
+    /* document.body.addEventListener('dragover', (e) => {
+      cancelEvent(e);
+    }); */
+
+    let counter = 0;
+    document.body.addEventListener('dragenter', (e) => {
+      counter++;
+    });
+
+    document.body.addEventListener('dragover', (e) => {
+      //this.log('dragover', e/* , e.dataTransfer.types[0] */);
+      toggle(e, true);
+      cancelEvent(e);
+    });
+
+    document.body.addEventListener('dragleave', (e) => {
+      //this.log('dragleave', e, counter);
+      //if((e.pageX <= 0 || e.pageX >= appPhotosManager.windowW) || (e.pageY <= 0 || e.pageY >= appPhotosManager.windowH)) {
+      counter--;
+      if(counter === 0) { 
+      //if(!findUpClassName(e.target, 'drops-container')) {
+        toggle(e, false);
+      }
+    });
+
+    const dropsContainer = document.createElement('div');
+    dropsContainer.classList.add('drops-container');
+  }
+
+  private onDocumentPaste = (e: ClipboardEvent | DragEvent, attachType?: 'media' | 'document') => {
     const peerId = this.chat?.peerId;
     if(!peerId || rootScope.overlayIsActive || (peerId < 0 && !appChatsManager.hasRights(peerId, 'send', 'send_media'))) {
       return;
     }
 
     //console.log('document paste');
-
-    // @ts-ignore
-    const items = (e.clipboardData || e.originalEvent.clipboardData).items;
     //console.log('item', event.clipboardData.getData());
-    //let foundFile = false;
-    const chatInput = this.chat.input;
-    for(let i = 0; i < items.length; ++i) {
-      if(items[i].kind == 'file') {
-        e.preventDefault()
-        e.cancelBubble = true;
-        e.stopPropagation();
-        //foundFile = true;
-
-        let file = items[i].getAsFile();
-        //console.log(items[i], file);
-        if(!file) continue;
-
-        chatInput.willAttachType = file.type.indexOf('image/') === 0 ? 'media' : "document";
-        new PopupNewMedia([file], chatInput.willAttachType);
+
+    cancelEvent(e);
+    getFilesFromEvent(e).then((files: File[]) => {
+      if(files.length) {
+        if(attachType == 'media' && files.find(file => !['image', 'video'].includes(file.type.split('/')[0]))) {
+          attachType = 'document';
+        }
+  
+        const chatInput = this.chat.input;
+        chatInput.willAttachType = attachType || (files[0].type.indexOf('image/') === 0 ? 'media' : "document");
+        new PopupNewMedia(files, chatInput.willAttachType);
       }
-    }
+    });
   };
 
   public selectTab(id: number) {

src/scss/partials/_chatDrop.scss

@@ -0,0 +1,123 @@
+.drops-container {
+  --padding: 20px;
+  --pinned-floating-height: 0px;
+  position: absolute !important;
+  z-index: 3;
+  top: calc(56px + var(--pinned-floating-height) + var(--padding));
+  right: var(--padding);
+  bottom: var(--padding);
+  left: var(--padding);
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  user-select: none;
+  width: auto !important;
+
+  @include respond-to(medium-screens) {
+		//transition: transform var(--layer-transition);
+
+		body.is-right-column-shown & {
+      //left: calc(var(--right-column-width) / -2);
+      right: calc(var(--right-column-width));
+    }
+  }
+
+  @include respond-to(handhelds) {
+    --padding: 10px;
+  }
+
+  &:not(.is-visible) {
+    display: none;
+  }
+
+  &.is-visible {
+    animation: fade-in-opacity .2s linear forwards;
+
+    &.backwards {
+      animation: fade-in-backwards-opacity .2s linear forwards;
+    }
+  }
+}
+
+.drop {
+  background-color: #fff;
+  position: relative;
+  //height: 100%;
+  border-radius: $border-radius-big;
+  width: 100%;
+  max-width: 696px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  color: #a2acb4;
+  transition: color .2s ease-in-out;
+  pointer-events: all;
+  flex: 1 1 auto;
+
+  &-outline {
+    &-wrapper {
+      position: absolute;
+      top: 19px;
+      right: 19px;
+      bottom: 19px;
+      left: 19px;
+      pointer-events: none;
+    }
+
+    &-path {
+      fill: none;
+      stroke-dasharray: 13.5, 11;
+      stroke: #a2acb4;
+      stroke-width: 2;
+      stroke-linecap: round;
+      transition: stroke .2s ease-in-out;
+      stroke-dashoffset: 0;
+
+      .drop.is-dragover & {
+        animation: drop-outline-move .5s linear infinite;
+        stroke: $color-blue;
+      }
+
+      /* .drop.is-dragover.backwards & {
+        //animation: drop-outline-backwards-move .5s linear forwards;
+        animation-direction: reverse;
+        animation-fill-mode: forwards;
+      } */
+    }
+  }
+
+  &-icon {
+    font-size: 6rem;
+  }
+
+  &-header {
+    font-weight: 500;
+    font-size: 1.25rem;
+  }
+
+  &.is-dragover {
+    color: $color-blue;
+  }
+
+  & + & {
+    margin-top: 10px;
+  }
+}
+
+@keyframes drop-outline-move {
+  0% {
+    stroke-dashoffset: 0;
+  }
+
+  100% {
+    stroke-dashoffset: -24.5;
+  }
+}
+
+body.is-dragging {
+  .page-chats {
+    pointer-events: none;
+  }
+}

src/scss/partials/_chatTopbar.scss

@@ -14,6 +14,9 @@
 			/* & + .bubbles {
 				margin-top: 52px;
 			} */
+			& ~ .drops-container {
+				--pinned-floating-height: 52px;
+			}
 		}
 
 		&.is-pinned-message-shown:not(.hide-pinned):not(.is-pinned-audio-shown) {

src/scss/style.scss

@@ -124,6 +124,7 @@ $chat-padding-handhelds: .5rem;
 @import "partials/chatPinned";
 @import "partials/chatMarkupTooltip";
 @import "partials/chatStickersHelper";
+@import "partials/chatDrop";
 @import "partials/sidebar";
 @import "partials/leftSidebar";
 @import "partials/rightSidebar";