完善预览功能

README.md

@@ -5,7 +5,7 @@ This template should help get you started developing with Vue 3 and TypeScript i
 ## Recommended IDE Setup
 
 - [VS Code](https://code.visualstudio.com/) + [Vue - Official](https://marketplace.visualstudio.com/items?itemName=Vue.volar) + [Tauri](https://marketplace.visualstudio.com/items?itemName=tauri-apps.tauri-vscode) + [rust-analyzer](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer)
-  
-
 
 $env:HTTPS_PROXY="http://127.0.0.1:10808"
+
+hello

src/App.vue

@@ -18,6 +18,7 @@ type SyncProvider = "none" | "webdav" | "s3";
 const DEFAULT_DOCUMENT_MODE_KEY = "yurou:default-document-mode";
 const APP_THEME_KEY = "yurou:app-theme";
 const RENDER_SINGLE_LINE_BREAKS_KEY = "yurou:render-single-line-breaks";
+const PARAGRAPH_INDENT_KEY = "yurou:paragraph-indent";
 const MARKDOWN_EXTENSIONS = new Set(["md"]);
 const IMAGE_EXTENSIONS = new Set(["png", "jpg", "jpeg", "gif", "webp", "avif"]);
 const VIDEO_EXTENSIONS = new Set(["mp4", "webm", "mov", "m4v", "ogv"]);
@@ -124,6 +125,21 @@ function saveRenderSingleLineBreaks(value: boolean) {
   }
 }
 
+function loadParagraphIndent() {
+  try {
+    return localStorage.getItem(PARAGRAPH_INDENT_KEY) === "true";
+  } catch {
+    return false;
+  }
+}
+
+function saveParagraphIndent(value: boolean) {
+  try {
+    localStorage.setItem(PARAGRAPH_INDENT_KEY, String(value));
+  } catch { /* noop */
+  }
+}
+
 interface SyncConfig {
   provider: SyncProvider;
   webdav: {
@@ -230,6 +246,7 @@ const defaultDocumentMode = ref<DocumentMode>(loadDefaultDocumentMode());
 const documentMode = ref<DocumentMode>(defaultDocumentMode.value);
 const appTheme = ref<AppTheme>(loadAppTheme());
 const renderSingleLineBreaks = ref(loadRenderSingleLineBreaks());
+const paragraphIndent = ref(loadParagraphIndent());
 const showMoreMenu = ref(false);
 const settingsRequest = ref(0);
 const settingsInitialPage = ref<"about" | "editor" | "sync">("about");
@@ -667,6 +684,11 @@ function updateRenderSingleLineBreaks(value: boolean) {
   saveRenderSingleLineBreaks(value);
 }
 
+function updateParagraphIndent(value: boolean) {
+  paragraphIndent.value = value;
+  saveParagraphIndent(value);
+}
+
 function resetWorkspaceAndEditorState(options: { stopWatcher?: boolean } = {}) {
   if (options.stopWatcher !== false) {
     void stopWorkspaceWatcher();
@@ -1269,6 +1291,7 @@ async function handleSearchResultClick(filePath: string, lineNumber: number) {
           :default-document-mode="defaultDocumentMode"
           :app-theme="appTheme"
           :render-single-line-breaks="renderSingleLineBreaks"
+          :paragraph-indent="paragraphIndent"
           :recent-workspaces="recentWorkspaces"
           @open-folder="onOpenFolder"
           @switch-workspace="(path: string) => switchWorkspace(path)"
@@ -1283,6 +1306,7 @@ async function handleSearchResultClick(filePath: string, lineNumber: number) {
           @update-default-document-mode="updateDefaultDocumentMode"
           @update-app-theme="updateAppTheme"
           @update-render-single-line-breaks="updateRenderSingleLineBreaks"
+          @update-paragraph-indent="updateParagraphIndent"
           @prepare-workspace-sync="prepareWorkspaceSync"
           @workspace-synced="handleWorkspaceSynced"
       />
@@ -1431,6 +1455,7 @@ async function handleSearchResultClick(filePath: string, lineNumber: number) {
               :document-mode="documentMode"
               :file-path="currentFilePath"
               :render-single-line-breaks="renderSingleLineBreaks"
+              :paragraph-indent="paragraphIndent"
               placeholder="输入 Markdown 内容... 支持标题、粗体、斜体、代码块等"
               @update:model-value="onUpdate"
               @save-shortcut="doSave"

src/components/DirectorySidebar.vue

@@ -37,6 +37,7 @@ const props = withDefaults(
       defaultDocumentMode?: DocumentMode;
       appTheme?: AppTheme;
       renderSingleLineBreaks?: boolean;
+      paragraphIndent?: boolean;
       recentWorkspaces?: WorkspaceEntry[];
     }>(),
     {
@@ -46,6 +47,7 @@ const props = withDefaults(
       defaultDocumentMode: "edit",
       appTheme: "warm",
       renderSingleLineBreaks: false,
+      paragraphIndent: false,
       recentWorkspaces: () => [],
     },
 );
@@ -63,6 +65,7 @@ const emit = defineEmits<{
   updateDefaultDocumentMode: [mode: DocumentMode];
   updateAppTheme: [theme: AppTheme];
   updateRenderSingleLineBreaks: [value: boolean];
+  updateParagraphIndent: [value: boolean];
   prepareWorkspaceSync: [done: (saved: boolean) => void];
   workspaceSynced: [];
   "search-result-click": [filePath: string, lineNumber: number];
@@ -882,9 +885,11 @@ function setAllFoldersExpanded(expanded: boolean) {
       :default-document-mode="defaultDocumentMode"
       :app-theme="appTheme"
       :render-single-line-breaks="renderSingleLineBreaks"
+      :paragraph-indent="paragraphIndent"
       @update-default-document-mode="(mode: DocumentMode) => emit('updateDefaultDocumentMode', mode)"
       @update-app-theme="(theme: AppTheme) => emit('updateAppTheme', theme)"
       @update-render-single-line-breaks="(value: boolean) => emit('updateRenderSingleLineBreaks', value)"
+      @update-paragraph-indent="(value: boolean) => emit('updateParagraphIndent', value)"
       @prepare-workspace-sync="forwardPrepareWorkspaceSync"
       @workspace-synced="emit('workspaceSynced')"
   />

src/components/MarkdownCodeEditor.vue

@@ -80,6 +80,7 @@ const emit = defineEmits<{
   blur: [];
   escape: [];
   paste: [payload: PastePayload];
+  "backspace-at-start": [];
 }>();
 
 const hostRef = ref<HTMLDivElement>();
@@ -346,6 +347,17 @@ function createEditor() {
           },
           indentWithTab,
           ...closeBracketsKeymap,
+          {
+            key: "Backspace",
+            run(view) {
+              const selection = view.state.selection.main;
+              if (selection.empty && selection.head === 0) {
+                emit("backspace-at-start");
+                return true;
+              }
+              return false;
+            },
+          },
           ...defaultKeymap,
           ...searchKeymap,
           ...historyKeymap,
@@ -449,7 +461,15 @@ function scrollToLine(lineNumber: number) {
   view.focus();
 }
 
-defineExpose({ focus, focusAtEnd, replaceRange, scrollToLine });
+function setCursorPosition(pos: number) {
+  const view = editorView;
+  if (!view) return;
+  const safePos = Math.max(0, Math.min(pos, view.state.doc.length));
+  view.dispatch({ selection: EditorSelection.cursor(safePos), scrollIntoView: true });
+  view.focus();
+}
+
+defineExpose({ focus, focusAtEnd, replaceRange, scrollToLine, setCursorPosition });
 
 onMounted(createEditor);
 

src/components/MarkdownEditor.vue

@@ -70,6 +70,7 @@ interface MarkdownCodeEditorApi {
   focusAtEnd: () => void;
   replaceRange: (text: string, from?: number, to?: number) => void;
   scrollToLine: (lineNumber: number) => void;
+  setCursorPosition: (pos: number) => void;
 }
 
 const props = withDefaults(
@@ -80,6 +81,7 @@ const props = withDefaults(
     previewOnly?: boolean;
     filePath?: string | null;
     renderSingleLineBreaks?: boolean;
+    paragraphIndent?: boolean;
   }>(),
   {
     modelValue: "",
@@ -88,6 +90,7 @@ const props = withDefaults(
     previewOnly: false,
     filePath: null,
     renderSingleLineBreaks: false,
+    paragraphIndent: false,
   },
 );
 
@@ -271,6 +274,9 @@ const pendingLocalModelUpdate = ref(false);
 const isEditingEmptyDocument = computed(
   () => editingBlockId.value === EMPTY_BLOCK_ID,
 );
+const previewParagraphStyle = computed(() => ({
+  "--paragraph-indent": props.paragraphIndent ? "2em" : "0",
+}));
 let modeScrollRestoreFrame: number | null = null;
 let renderRequestId = 0;
 const previewImageSelector = ".markdown-preview:not(.markdown-mixed) img";
@@ -591,6 +597,56 @@ function flushPendingChanges(): string | undefined {
   return finalizeBlockEdit();
 }
 
+async function mergeCurrentBlockWithPrevious() {
+  if (activeDocumentMode.value !== "mixed") return;
+  const blockId = editingBlockId.value;
+  if (!blockId) return;
+
+  const blockIndex = markdownBlocks.value.findIndex((b) => b.id === blockId);
+  if (blockIndex <= 0) return;
+
+  const previousBlock = markdownBlocks.value[blockIndex - 1];
+  const currentBlock = markdownBlocks.value[blockIndex];
+
+  // 将当前编辑中的源码与前一个块的源码合并
+  const mergedSource = previousBlock.source + editingSource.value;
+
+  // 构建新文档：用合并后的源码替换两个块的范围
+  const nextValue =
+    props.modelValue.slice(0, previousBlock.startOffset) +
+    mergedSource +
+    props.modelValue.slice(currentBlock.endOffset);
+
+  // 记录合并点位置（上一个块的原末尾），用于后续光标定位
+  const cursorOffset = previousBlock.source.length;
+
+  // 取消当前编辑状态
+  cancelBlockEdit();
+
+  // 更新文档
+  emitModelValue(nextValue);
+
+  // 等待重新解析块结构
+  await parseBlocks(nextValue);
+
+  // 找到合并后的新块（startOffset 仍为 previousBlock.startOffset）
+  const newBlock = markdownBlocks.value.find(
+    (b) => b.startOffset === previousBlock.startOffset,
+  );
+  if (newBlock) {
+    // 进入编辑模式，光标定位在合并点
+    editingBlockId.value = newBlock.id;
+    editingSource.value = newBlock.source;
+    editingBaseValue.value = nextValue;
+    editingRange.value = {
+      startOffset: newBlock.startOffset,
+      endOffset: newBlock.endOffset,
+    };
+    await nextTick();
+    blockCodeRef.value?.setCursorPosition(cursorOffset);
+  }
+}
+
 watch(activeDocumentMode, (mode, oldMode) => {
   const scrollSnapshot = captureScrollSnapshot();
   let committedValue: string | undefined;
@@ -975,11 +1031,11 @@ defineExpose({
         <div v-if="renderError" class="text-red-500 text-sm">
           ⚠ Markdown 解析错误
         </div>
-        <div v-else class="markdown-preview" v-html="renderedHtml" />
+        <div v-else class="markdown-preview" :style="previewParagraphStyle" v-html="renderedHtml" />
       </div>
 
       <!-- Mixed mode -->
-      <div v-else class="min-h-[60vh] markdown-preview markdown-mixed">
+      <div v-else class="min-h-[60vh] markdown-preview markdown-mixed" :style="previewParagraphStyle">
         <div v-if="renderError" class="text-red-500 text-sm">
           ⚠ Markdown 解析错误
         </div>
@@ -1030,6 +1086,7 @@ defineExpose({
               @escape="cancelBlockEdit"
               @blur="finalizeBlockEdit"
               @paste="onBlockPaste"
+              @backspace-at-start="mergeCurrentBlockWithPrevious"
             />
             <div
               v-else
@@ -1091,7 +1148,7 @@ defineExpose({
 .markdown-preview h3 { font-size: 1.125em; }
 .markdown-preview h4 { font-size: 1em; }
 
-.markdown-preview p { margin: 0; }
+.markdown-preview p { margin: 0; text-indent: var(--paragraph-indent, 0); }
 
 .markdown-preview:not(.markdown-mixed) > p + p,
 .markdown-mixed
@@ -1099,7 +1156,7 @@ defineExpose({
   + .markdown-block-paragraph
   > .markdown-block-preview
   > p {
-  margin-top: 1.625em;
+  margin-top: 0;
 }
 
 .markdown-preview strong { font-weight: 700; color: var(--app-text-strong); }
@@ -1224,11 +1281,6 @@ defineExpose({
     box-shadow 0.15s ease;
 }
 
-.markdown-block:not(.markdown-block-editing):hover > .markdown-block-preview > * {
-  background-color: var(--app-surface-muted);
-  cursor: text;
-}
-
 .markdown-block-editing {
   display: block;
 }
@@ -1236,7 +1288,7 @@ defineExpose({
 .markdown-mixed
   > .markdown-block-paragraph
   + .markdown-block-paragraph.markdown-block-editing {
-  margin-top: 1.625em;
+  margin-top: 0;
 }
 
 .markdown-block-editing,

src/components/SettingsModal.vue

@@ -78,6 +78,7 @@ const props = withDefaults(
     defaultDocumentMode?: DocumentMode;
     appTheme?: AppTheme;
     renderSingleLineBreaks?: boolean;
+    paragraphIndent?: boolean;
   }>(),
   {
     initialPage: "about",
@@ -85,6 +86,7 @@ const props = withDefaults(
     defaultDocumentMode: "edit",
     appTheme: "warm",
     renderSingleLineBreaks: false,
+    paragraphIndent: false,
   },
 );
 
@@ -93,6 +95,7 @@ const emit = defineEmits<{
   updateDefaultDocumentMode: [mode: DocumentMode];
   updateAppTheme: [theme: AppTheme];
   updateRenderSingleLineBreaks: [value: boolean];
+  updateParagraphIndent: [value: boolean];
   prepareWorkspaceSync: [done: (saved: boolean) => void];
   workspaceSynced: [];
 }>();
@@ -604,6 +607,20 @@ onBeforeUnmount(() => {
                   <span></span>
                 </label>
               </div>
+              <div class="settings-row">
+                <div class="settings-copy">
+                  <h3>段落首行缩进</h3>
+                  <p>开启后，预览和混合模式下段落首行会缩进两个字符，更符合中文排版习惯。</p>
+                </div>
+                <label class="settings-switch" title="段落首行缩进">
+                  <input
+                    :checked="paragraphIndent"
+                    type="checkbox"
+                    @change="emit('updateParagraphIndent', ($event.target as HTMLInputElement).checked)"
+                  />
+                  <span></span>
+                </label>
+              </div>
             </section>
           </div>