From 928ba0ce419bacba113951095278a5138ead34cf Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 10 Apr 2022 16:04:03 +0800
Subject: ...

---
 FrontEnd/src/views/timeline/MarkdownPostEdit.tsx | 209 +++++++++++++++++++++++
 1 file changed, 209 insertions(+)
 create mode 100644 FrontEnd/src/views/timeline/MarkdownPostEdit.tsx

(limited to 'FrontEnd/src/views/timeline/MarkdownPostEdit.tsx')

diff --git a/FrontEnd/src/views/timeline/MarkdownPostEdit.tsx b/FrontEnd/src/views/timeline/MarkdownPostEdit.tsx
new file mode 100644
index 00000000..35a2bbf5
--- /dev/null
+++ b/FrontEnd/src/views/timeline/MarkdownPostEdit.tsx
@@ -0,0 +1,209 @@
+import React from "react";
+import classnames from "classnames";
+import { useTranslation } from "react-i18next";
+
+import { getHttpTimelineClient, HttpTimelinePostInfo } from "@/http/timeline";
+
+import TimelinePostBuilder from "@/services/TimelinePostBuilder";
+
+import FlatButton from "../common/button/FlatButton";
+import TabPages from "../common/tab/TabPages";
+import ConfirmDialog from "../common/dailog/ConfirmDialog";
+import Spinner from "../common/Spinner";
+
+import "./MarkdownPostEdit.css";
+
+export interface MarkdownPostEditProps {
+  owner: string;
+  timeline: string;
+  onPosted: (post: HttpTimelinePostInfo) => void;
+  onPostError: () => void;
+  onClose: () => void;
+  className?: string;
+  style?: React.CSSProperties;
+}
+
+const MarkdownPostEdit: React.FC<MarkdownPostEditProps> = ({
+  owner: ownerUsername,
+  timeline: timelineName,
+  onPosted,
+  onClose,
+  onPostError,
+  className,
+  style,
+}) => {
+  const { t } = useTranslation();
+
+  const [canLeave, setCanLeave] = React.useState<boolean>(true);
+
+  const [process, setProcess] = React.useState<boolean>(false);
+
+  const [showLeaveConfirmDialog, setShowLeaveConfirmDialog] =
+    React.useState<boolean>(false);
+
+  const [text, _setText] = React.useState<string>("");
+  const [images, _setImages] = React.useState<{ file: File; url: string }[]>(
+    []
+  );
+  const [previewHtml, _setPreviewHtml] = React.useState<string>("");
+
+  const _builder = React.useRef<TimelinePostBuilder | null>(null);
+
+  const getBuilder = (): TimelinePostBuilder => {
+    if (_builder.current == null) {
+      const builder = new TimelinePostBuilder(() => {
+        setCanLeave(builder.isEmpty);
+        _setText(builder.text);
+        _setImages(builder.images);
+        _setPreviewHtml(builder.renderHtml());
+      });
+      _builder.current = builder;
+    }
+    return _builder.current;
+  };
+
+  const canSend = text.length > 0;
+
+  React.useEffect(() => {
+    return () => {
+      getBuilder().dispose();
+    };
+  }, []);
+
+  React.useEffect(() => {
+    window.onbeforeunload = (): unknown => {
+      if (!canLeave) {
+        return t("timeline.confirmLeave");
+      }
+    };
+
+    return () => {
+      window.onbeforeunload = null;
+    };
+  }, [canLeave, t]);
+
+  const send = async (): Promise<void> => {
+    setProcess(true);
+    try {
+      const dataList = await getBuilder().build();
+      const post = await getHttpTimelineClient().postPost(
+        ownerUsername,
+        timelineName,
+        {
+          dataList,
+        }
+      );
+      onPosted(post);
+      onClose();
+    } catch (e) {
+      setProcess(false);
+      onPostError();
+    }
+  };
+
+  return (
+    <>
+      <TabPages
+        className={className}
+        style={style}
+        pageContainerClassName="py-2"
+        dense
+        actions={
+          process ? (
+            <Spinner />
+          ) : (
+            <div>
+              <i
+                className="icon-button large bi-x cru-color-danger cru-align-middle me-2"
+                onClick={() => {
+                  if (canLeave) {
+                    onClose();
+                  } else {
+                    setShowLeaveConfirmDialog(true);
+                  }
+                }}
+              />
+              {canSend && (
+                <FlatButton text="timeline.send" onClick={() => void send()} />
+              )}
+            </div>
+          )
+        }
+        pages={[
+          {
+            name: "text",
+            text: "edit",
+            page: (
+              <textarea
+                value={text}
+                disabled={process}
+                className="cru-fill-parent"
+                onChange={(event) => {
+                  getBuilder().setMarkdownText(event.currentTarget.value);
+                }}
+              />
+            ),
+          },
+          {
+            name: "images",
+            text: "image",
+            page: (
+              <div className="timeline-markdown-post-edit-page">
+                {images.map((image, index) => (
+                  <div
+                    key={image.url}
+                    className="timeline-markdown-post-edit-image-container"
+                  >
+                    <img
+                      src={image.url}
+                      className="timeline-markdown-post-edit-image"
+                    />
+                    <i
+                      className={classnames(
+                        "bi-trash text-danger icon-button timeline-markdown-post-edit-image-delete-button",
+                        process && "d-none"
+                      )}
+                      onClick={() => {
+                        getBuilder().deleteImage(index);
+                      }}
+                    />
+                  </div>
+                ))}
+                <input
+                  type="file"
+                  accept="image/jpeg,image/jpg,image/png,image/gif,image/webp"
+                  onChange={(event: React.ChangeEvent<HTMLInputElement>) => {
+                    const { files } = event.currentTarget;
+                    if (files != null && files.length !== 0) {
+                      getBuilder().appendImage(files[0]);
+                    }
+                  }}
+                  disabled={process}
+                />
+              </div>
+            ),
+          },
+          {
+            name: "preview",
+            text: "preview",
+            page: (
+              <div
+                className="markdown-container timeline-markdown-post-edit-page"
+                dangerouslySetInnerHTML={{ __html: previewHtml }}
+              />
+            ),
+          },
+        ]}
+      />
+      <ConfirmDialog
+        onClose={() => setShowLeaveConfirmDialog(false)}
+        onConfirm={onClose}
+        open={showLeaveConfirmDialog}
+        title="timeline.dropDraft"
+        body="timeline.confirmLeave"
+      />
+    </>
+  );
+};
+
+export default MarkdownPostEdit;
-- 
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