add better visual indication for dropping files, make dropzone bigger

src/components/media_upload/media_upload.js

@@ -45,20 +45,6 @@ const mediaUpload = {
         this.$emit('all-uploaded')
       }
     },
-    fileDrop (e) {
-      if (e.dataTransfer.files.length > 0) {
-        e.preventDefault() // allow dropping text like before
-        this.multiUpload(e.dataTransfer.files)
-      }
-    },
-    fileDrag (e) {
-      let types = e.dataTransfer.types
-      if (types.contains('Files')) {
-        e.dataTransfer.dropEffect = 'copy'
-      } else {
-        e.dataTransfer.dropEffect = 'none'
-      }
-    },
     clearFile () {
       this.uploadReady = false
       this.$nextTick(() => {

src/components/media_upload/media_upload.vue

@@ -1,10 +1,5 @@
 <template>
-  <div
-    class="media-upload"
-    @drop.prevent
-    @dragover.prevent="fileDrag"
-    @drop="fileDrop"
-  >
+  <div class="media-upload">
     <label
       class="label"
       :title="$t('tool_tip.media_upload')"

src/components/post_status_form/post_status_form.js

@@ -82,7 +82,9 @@ const PostStatusForm = {
         contentType
       },
       caret: 0,
-      pollFormVisible: false
+      pollFormVisible: false,
+      showDropIcon: false,
+      dropStopTimeout: null
     }
   },
   computed: {
@@ -248,13 +250,26 @@ const PostStatusForm = {
       }
     },
     fileDrop (e) {
-      if (e.dataTransfer.files.length > 0) {
+      if (e.dataTransfer && e.dataTransfer.types.includes('Files')) {
         e.preventDefault() // allow dropping text like before
         this.dropFiles = e.dataTransfer.files
+        clearTimeout(this.dropStopTimeout)
+        this.showDropIcon = false
       }
     },
+    fileDragStop (e) {
+      // The false-setting is done with delay because just using leave-events
+      // directly caused unwanted flickering, this is not perfect either but
+      // much less noticable.
+      clearTimeout(this.dropStopTimeout)
+      this.dropStopTimeout = setTimeout(() => (this.showDropIcon = false), 100)
+    },
     fileDrag (e) {
       e.dataTransfer.dropEffect = 'copy'
+      if (e.dataTransfer && e.dataTransfer.types.includes('Files')) {
+        clearTimeout(this.dropStopTimeout)
+        this.showDropIcon = true
+      }
     },
     onEmojiInputInput (e) {
       this.$nextTick(() => {

src/components/post_status_form/post_status_form.vue

@@ -6,7 +6,14 @@
     <form
       autocomplete="off"
       @submit.prevent="postStatus(newStatus)"
+      @dragover.prevent.capture="fileDrag"
     >
+      <div
+        v-show="showDropIcon"
+        class="drop-indicator icon-upload"
+        @dragleave.capture="fileDragStop"
+        @drop.stop="fileDrop"
+      />
       <div class="form-group">
         <i18n
           v-if="!$store.state.users.currentUser.locked && newStatus.visibility == 'private'"
@@ -97,8 +104,6 @@
             class="form-post-body"
             @keydown.meta.enter="postStatus(newStatus)"
             @keyup.ctrl.enter="postStatus(newStatus)"
-            @drop="fileDrop"
-            @dragover.prevent="fileDrag"
             @input="resize"
             @compositionupdate="resize"
             @paste="paste"
@@ -447,7 +452,8 @@
   form {
     display: flex;
     flex-direction: column;
-    padding: 0.6em;
+    margin: 0.6em;
+    position: relative;
   }
 
   .form-group {
@@ -505,5 +511,25 @@
     cursor: pointer;
     z-index: 4;
   }
+
+  .drop-indicator {
+    position: absolute;
+    z-index: 1;
+    width: 100%;
+    height: 100%;
+    font-size: 5em;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    color: $fallback--text;
+    color: var(--text, $fallback--text);
+    opacity: 0.6;
+    background-color: $fallback--bg;
+    background-color: var(--bg, $fallback--bg);
+    border-radius: $fallback--tooltipRadius;
+    border-radius: var(--tooltipRadius, $fallback--tooltipRadius);
+    border: 2px dashed $fallback--text;
+    border: 2px dashed var(--text, $fallback--text);
+  }
 }
 </style>