From bf90bba792643b8890abe7f895de152b4d30910b Mon Sep 17 00:00:00 2001
From: Thomas Haaf <thomas@smart-sign.com>
Date: Fri, 14 Jun 2024 15:02:28 +0200
Subject: [PATCH] image drop onto textarea

---
 client/src/components/ImagePreview.vue |  6 ++++++
 client/src/views/PostFormView.vue      | 24 +++++++++++++++++-------
 2 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/client/src/components/ImagePreview.vue b/client/src/components/ImagePreview.vue
index 29df22c..4025aac 100644
--- a/client/src/components/ImagePreview.vue
+++ b/client/src/components/ImagePreview.vue
@@ -26,6 +26,7 @@
 
   .btn-paste {
     color: #222;
+
     &:hover {
       color: #22222255;
     }
@@ -33,6 +34,7 @@
 
   .btn-delete {
     color: #a00;
+
     &:hover {
       color: #e00;
     }
@@ -113,6 +115,10 @@ const getMarkdownString = () => {
 
 const onDragStart = (event: DragEvent) => {
   if (props.showPaste) {
+    const ghostImage = event.target as HTMLImageElement;
+    const horizPos = ghostImage.width / 2;
+    const vertPos = ghostImage.height / 2;
+    event.dataTransfer?.setDragImage(ghostImage, horizPos, vertPos);
     event.dataTransfer?.setData("text/markdown", getMarkdownString());
   }
 };
diff --git a/client/src/views/PostFormView.vue b/client/src/views/PostFormView.vue
index cabfaa7..05413b4 100644
--- a/client/src/views/PostFormView.vue
+++ b/client/src/views/PostFormView.vue
@@ -45,7 +45,7 @@
               <div class="form-floating mb-3">
                 <textarea
                   v-model="form.markdown"
-                  class="form-control"
+                  class="form-control md-area"
                   placeholder="Blogpost"
                   ref="markdownArea"
                   style="height: 40vh; min-height: 200px"
@@ -422,11 +422,22 @@ const dropMarkdown = (evt: DragEvent) => {
   const textArea = evt.target as HTMLTextAreaElement;
   if (items && textArea) {
     for (const item of items) {
-      if (item.kind === "string" && item.type === "text/markdown") {
-        evt.preventDefault();
-        item.getAsString((markdown) => {
-          form.markdown = insertIntoTextarea(markdown, textArea, "beforeCursor");
-        });
+      // evt.preventDefault();
+      // We cannot use preventDefault(), because we will be unable to get the cursor position to drop to.
+      // instead we have to pase everything and remove the base64 string afterwards
+      if (item.kind === "string") {
+        if (item.type === "text/markdown") {
+          item.getAsString((markdown_img_link) => {
+            form.markdown = insertIntoTextarea(markdown_img_link, textArea, "beforeCursor");
+          });
+        } else {
+          // Remove base64 string from drop events default behaviour
+          item.getAsString((str) => {
+            setTimeout(() => {
+              form.markdown = form.markdown.replace(str, "");
+            }, 0);
+          });
+        }
       }
     }
   }
@@ -549,7 +560,6 @@ const insertIntoTextarea = (
   const text = area.value;
   const before = text.substring(0, insertPosition === "afterCursor" ? end : start);
   const after = text.substring(insertPosition === "beforeCursor" ? start : end);
-
   return before + insertedText + after;
 };