🐛 Fixed the issue of block creation

frontend/src/App.vue

@@ -22,7 +22,7 @@ onMounted(async () => {
 <template>
   <div class="app-container">
     <WindowTitleBar />
-    <div class="app-content" :style="{ marginTop: systemStore.titleBarHeight }">
+    <div class="app-content">
       <router-view/>
     </div>
   </div>

frontend/src/components/titlebar/LinuxTitleBar.vue

@@ -127,11 +127,7 @@ onUnmounted(() => {
   border-bottom: 1px solid var(--toolbar-border, #d0d0d0);
   user-select: none;
   -webkit-user-select: none;
-  position: fixed;
+  width: 100%;
-  top: 0;
-  left: 0;
-  right: 0;
-  z-index: 1000;
   font-family: 'Ubuntu', 'Cantarell', 'DejaVu Sans', system-ui, sans-serif;
   box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
   

frontend/src/components/titlebar/MacOSTitleBar.vue

@@ -132,11 +132,7 @@ onUnmounted(() => {
   border-bottom: 1px solid var(--toolbar-border, rgba(0, 0, 0, 0.1));
   user-select: none;
   -webkit-user-select: none;
-  position: fixed;
+  width: 100%;
-  top: 0;
-  left: 0;
-  right: 0;
-  z-index: 1000;
   font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
   
   -webkit-context-menu: none;

frontend/src/components/titlebar/WindowsTitleBar.vue

@@ -126,11 +126,7 @@ onUnmounted(() => {
   border-bottom: 1px solid var(--toolbar-border);
   user-select: none;
   -webkit-user-select: none;
-  position: fixed;
+  width: 100%;
-  top: 0;
-  left: 0;
-  right: 0;
-  z-index: 1000;
   font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
 
   -webkit-context-menu: none;

frontend/src/views/editor/extensions/codeblock/decorations.ts

@@ -182,13 +182,15 @@ const blockLayer = layer({
 const preventFirstBlockFromBeingDeleted = EditorState.changeFilter.of((tr: any) => {
   const protect: number[] = [];
   
-  // 获取块状态
+  // 获取块状态并获取第一个块的分隔符大小
   const blocks = tr.startState.field(blockState);
   if (blocks && blocks.length > 0) {
     const firstBlock = blocks[0];
-    // 保护第一个块的分隔符区域
+    const firstBlockDelimiterSize = firstBlock.delimiter.to;
-    if (firstBlock && firstBlock.delimiter) {
+    
-      protect.push(firstBlock.delimiter.from, firstBlock.delimiter.to);
+    // 保护第一个块分隔符区域（从 0 到 firstBlockDelimiterSize）
+    if (firstBlockDelimiterSize > 0) {
+      protect.push(0, firstBlockDelimiterSize);
     }
   }
   
@@ -210,19 +212,19 @@ const preventFirstBlockFromBeingDeleted = EditorState.changeFilter.of((tr: any)
  * 使用 transactionFilter 来确保选择不会在第一个块之前
  */
 const preventSelectionBeforeFirstBlock = EditorState.transactionFilter.of((tr: any) => {
-  // 获取块状态
+  // 获取块状态并获取第一个块的分隔符大小
   const blocks = tr.startState.field(blockState);
   if (!blocks || blocks.length === 0) {
     return tr;
   }
   
   const firstBlock = blocks[0];
-  if (!firstBlock || !firstBlock.delimiter) {
+  const firstBlockDelimiterSize = firstBlock.delimiter.to;
+  
+  if (firstBlockDelimiterSize <= 0) {
     return tr;
   }
   
-  const firstBlockDelimiterSize = firstBlock.delimiter.to;
-  
   // 检查选择范围，如果在第一个块之前，则调整到第一个块的内容开始位置
   if (tr.selection) {
     tr.selection.ranges.forEach((range: any) => {

frontend/src/views/editor/extensions/codeblock/parser.ts

@@ -90,7 +90,13 @@ export function getBlocksFromSyntaxTree(state: EditorState): Block[] | null {
         }
     });
 
-    return blocks.length > 0 ? blocks : null;
+    if (blocks.length > 0) {
+        // 设置第一个块分隔符的大小
+        firstBlockDelimiterSize = blocks[0].delimiter.to;
+        return blocks;
+    }
+
+    return null;
 }
 
 // 跟踪第一个分隔符的大小
@@ -129,13 +135,20 @@ export function getBlocksFromString(state: EditorState): Block[] {
   const delim = "\n∞∞∞";
   let pos = 0;
 
-  // 检查文档是否以分隔符开始
+  // 检查文档是否以分隔符开始（不带前导换行符）
-  if (!content.startsWith("∞∞∞")) {
+  if (content.startsWith("∞∞∞")) {
+    // 文档直接以分隔符开始，调整为标准格式
+    pos = 0;
+  } else if (content.startsWith("\n∞∞∞")) {
+    // 文档以换行符+分隔符开始，这是标准格式，从位置0开始解析
+    pos = 0;
+  } else {
     // 如果文档不以分隔符开始，查找第一个分隔符
     const firstDelimPos = content.indexOf(delim);
     
     if (firstDelimPos === -1) {
       // 如果没有找到分隔符，整个文档作为一个文本块
+      firstBlockDelimiterSize = 0;
       return [{
         language: {
           name: 'text',
@@ -181,13 +194,32 @@ export function getBlocksFromString(state: EditorState): Block[] {
   }
   
   while (pos < doc.length) {
-    const blockStart = content.indexOf(delim, pos);
+    let blockStart: number;
+    
+    if (pos === 0 && content.startsWith("∞∞∞")) {
+      // 处理文档开头直接是分隔符的情况（不带前导换行符）
+      blockStart = 0;
+    } else if (pos === 0 && content.startsWith("\n∞∞∞")) {
+      // 处理文档开头是换行符+分隔符的情况（标准格式）
+      blockStart = 0;
+    } else {
+      blockStart = content.indexOf(delim, pos);
       if (blockStart !== pos) {
         // 如果在当前位置没有找到分隔符，可能是文档结尾
         break;
       }
+    }
+    
+    // 确定语言开始位置
+    let langStart: number;
+    if (pos === 0 && content.startsWith("∞∞∞")) {
+      // 文档直接以分隔符开始，跳过 ∞∞∞
+      langStart = blockStart + 3;
+    } else {
+      // 标准情况，跳过 \n∞∞∞
+      langStart = blockStart + delim.length;
+    }
     
-    const langStart = blockStart + delim.length;
     const delimiterEnd = content.indexOf("\n", langStart);
     if (delimiterEnd < 0) {
       console.error("Error parsing blocks. Delimiter didn't end with newline");
@@ -230,11 +262,6 @@ export function getBlocksFromString(state: EditorState): Block[] {
     
     blocks.push(block);
     pos = blockEnd;
-    
-    // 设置第一个块分隔符的大小（只有当这是第一个有分隔符的块时）
-    if (blocks.length === 1 && firstBlockDelimiterSize === undefined) {
-      firstBlockDelimiterSize = block.delimiter.to;
-    }
   }
   
   // 如果没有找到任何块，创建一个默认块
@@ -258,6 +285,9 @@ export function getBlocksFromString(state: EditorState): Block[] {
       },
     });
     firstBlockDelimiterSize = 0;
+  } else {
+    // 设置第一个块分隔符的大小
+    firstBlockDelimiterSize = blocks[0].delimiter.to;
   }
 
     return blocks;

go.mod

@@ -22,9 +22,9 @@ require (
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.6.2 // indirect
-	github.com/go-git/go-git/v5 v5.16.0 // indirect
+	github.com/go-git/go-git/v5 v5.16.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
-	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.3.0 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
 	github.com/google/uuid v1.6.0 // indirect
@@ -33,7 +33,7 @@ require (
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
 	github.com/leaanthony/go-ansi-parser v1.6.1 // indirect
 	github.com/leaanthony/u v1.1.1 // indirect
-	github.com/lmittmann/tint v1.1.1 // indirect
+	github.com/lmittmann/tint v1.1.2 // indirect
 	github.com/matryer/is v1.4.1 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -42,8 +42,8 @@ require (
 	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/sagikazarmark/locafero v0.9.0 // indirect
-	github.com/samber/lo v1.50.0 // indirect
+	github.com/samber/lo v1.51.0 // indirect
-	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
+	github.com/sergi/go-diff v1.4.0 // indirect
 	github.com/skeema/knownhosts v1.3.1 // indirect
 	github.com/sourcegraph/conc v0.3.0 // indirect
 	github.com/spf13/afero v1.14.0 // indirect
@@ -54,11 +54,11 @@ require (
 	github.com/wailsapp/mimetype v1.4.1 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.38.0 // indirect
+	golang.org/x/crypto v0.39.0 // indirect
 	golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 // indirect
-	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/net v0.41.0 // indirect
 	golang.org/x/sys v0.33.0 // indirect
-	golang.org/x/text v0.25.0 // indirect
+	golang.org/x/text v0.26.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -38,12 +38,12 @@ github.com/go-git/go-billy/v5 v5.6.2 h1:6Q86EsPXMa7c3YZ3aLAQsMA0VlWmy43r6FHqa/UN
 github.com/go-git/go-billy/v5 v5.6.2/go.mod h1:rcFC2rAsp/erv7CMz9GczHcuD0D32fWzH+MJAU+jaUU=
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMje31YglSBqCdIqdhKBW8lokaMrL3uTkpGYlE2OOT4=
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII=
-github.com/go-git/go-git/v5 v5.16.0 h1:k3kuOEpkc0DeY7xlL6NaaNg39xdgQbtH5mwCafHO9AQ=
+github.com/go-git/go-git/v5 v5.16.2 h1:fT6ZIOjE5iEnkzKyxTHK1W4HGAsPhqEqiSAssSO77hM=
-github.com/go-git/go-git/v5 v5.16.0/go.mod h1:4Ge4alE/5gPs30F2H1esi2gPd69R0C39lolkucHBOp8=
+github.com/go-git/go-git/v5 v5.16.2/go.mod h1:4Ge4alE/5gPs30F2H1esi2gPd69R0C39lolkucHBOp8=
 github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
 github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
-github.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss=
+github.com/go-viper/mapstructure/v2 v2.3.0 h1:27XbWsHIqhbdR5TIC911OfYvgSaW93HM+dX7970Q7jk=
-github.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/go-viper/mapstructure/v2 v2.3.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 h1:f+oWsMOmNPc8JmEHVZIycC7hBoQxHH9pNKQORJNozsQ=
@@ -69,8 +69,8 @@ github.com/leaanthony/go-ansi-parser v1.6.1 h1:xd8bzARK3dErqkPFtoF9F3/HgN8UQk0ed
 github.com/leaanthony/go-ansi-parser v1.6.1/go.mod h1:+vva/2y4alzVmmIEpk9QDhA7vLC5zKDTRwfZGOp3IWU=
 github.com/leaanthony/u v1.1.1 h1:TUFjwDGlNX+WuwVEzDqQwC2lOv0P4uhTQw7CMFdiK7M=
 github.com/leaanthony/u v1.1.1/go.mod h1:9+o6hejoRljvZ3BzdYlVL0JYCwtnAsVuN9pVTQcaRfI=
-github.com/lmittmann/tint v1.1.1 h1:xmmGuinUsCSxWdwH1OqMUQ4tzQsq3BdjJLAAmVKJ9Dw=
+github.com/lmittmann/tint v1.1.2 h1:2CQzrL6rslrsyjqLDwD11bZ5OpLBPU+g3G/r5LSfS8w=
-github.com/lmittmann/tint v1.1.1/go.mod h1:HIS3gSy7qNwGCj+5oRjAutErFBl4BzdQP6cJZ0NfMwE=
+github.com/lmittmann/tint v1.1.2/go.mod h1:HIS3gSy7qNwGCj+5oRjAutErFBl4BzdQP6cJZ0NfMwE=
 github.com/matryer/is v1.4.0/go.mod h1:8I/i5uYgLzgsgEloJE1U6xx5HkBQpAZvepWuujKwMRU=
 github.com/matryer/is v1.4.1 h1:55ehd8zaGABKLXQUe2awZ99BD/PTc2ls+KV/dXphgEQ=
 github.com/matryer/is v1.4.1/go.mod h1:8I/i5uYgLzgsgEloJE1U6xx5HkBQpAZvepWuujKwMRU=
@@ -97,10 +97,10 @@ github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0t
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
 github.com/sagikazarmark/locafero v0.9.0 h1:GbgQGNtTrEmddYDSAH9QLRyfAHY12md+8YFTqyMTC9k=
 github.com/sagikazarmark/locafero v0.9.0/go.mod h1:UBUyz37V+EdMS3hDF3QWIiVr/2dPrx49OMO0Bn0hJqk=
-github.com/samber/lo v1.50.0 h1:XrG0xOeHs+4FQ8gJR97zDz5uOFMW7OwFWiFVzqopKgY=
+github.com/samber/lo v1.51.0 h1:kysRYLbHy/MB7kQZf5DSN50JHmMsNEdeY24VzJFu7wI=
-github.com/samber/lo v1.50.0/go.mod h1:RjZyNk6WSnUFRKK6EyOhsRJMqft3G+pg7dCWHQCWvsc=
+github.com/samber/lo v1.51.0/go.mod h1:4+MXEGsJzbKGaUEQFKBq2xtfuznW9oz/WrgyzMzRoM0=
-github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 h1:n661drycOFuPLCN3Uc8sB6B/s6Z4t2xvBgU1htSHuq8=
+github.com/sergi/go-diff v1.4.0 h1:n/SP9D5ad1fORl+llWyN+D6qoUETXNZARKjyY2/KVCw=
-github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
+github.com/sergi/go-diff v1.4.0/go.mod h1:A0bzQcvG0E7Rwjx0REVgAGH58e96+X0MeOfepqsbeW4=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/skeema/knownhosts v1.3.1 h1:X2osQ+RAjK76shCbvhHHHVl3ZlgDm8apHEHFqRjnBY8=
 github.com/skeema/knownhosts v1.3.1/go.mod h1:r7KTdC8l4uxWRyK2TpQZ/1o5HaSzh06ePQNxPwTcfiY=
@@ -132,14 +132,14 @@ github.com/xanzy/ssh-agent v0.3.3/go.mod h1:6dzNDKs0J9rVPHPhaGCukekBHKqfl+L3KghI
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
+golang.org/x/crypto v0.39.0 h1:SHs+kF4LP+f+p14esP5jAoDpHU8Gu/v9lFRK6IT5imM=
-golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
+golang.org/x/crypto v0.39.0/go.mod h1:L+Xg3Wf6HoL4Bn4238Z6ft6KfEpN0tJGo53AAPC632U=
 golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 h1:y5zboxd6LQAqYIhHnB48p0ByQ/GnQx2BE33L8BOHQkI=
 golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6/go.mod h1:U6Lno4MTRCDY+Ba7aCcauB9T60gsv5s4ralQzP72ZoQ=
 golang.org/x/net v0.0.0-20210505024714-0287a6fb4125/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
+golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
-golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
+golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200810151505-1b9f1253b3ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -155,8 +155,8 @@ golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9sn
 golang.org/x/term v0.32.0 h1:DR4lr0TjUs3epypdhTOkMmuF5CDFJ/8pOnbzMZPQ7bg=
 golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
+golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
-golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
+golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=