#42

doc/zh_CN/keyboard_shortcuts.html

@@ -22,6 +22,7 @@
         In Process:
         <ul>
             <li>Ctrl+B：跳转到声明</li>
+            <li>Alt+F7：查找使用</li>
         </ul>
 
         TODO:

editor/editors.go

@@ -222,6 +222,98 @@ func FindDeclarationHandler(w http.ResponseWriter, r *http.Request) {
 	data["cursorCh"] = cursorCh
 }
 
+func FindUsagesHandler(w http.ResponseWriter, r *http.Request) {
+	data := map[string]interface{}{"succ": true}
+	defer util.RetJSON(w, r, data)
+
+	session, _ := user.Session.Get(r, "wide-session")
+	username := session.Values["username"].(string)
+
+	decoder := json.NewDecoder(r.Body)
+
+	var args map[string]interface{}
+
+	if err := decoder.Decode(&args); err != nil {
+		glog.Error(err)
+		http.Error(w, err.Error(), 500)
+
+		return
+	}
+
+	filePath := args["file"].(string)
+	curDir := filePath[:strings.LastIndex(filePath, string(os.PathSeparator))]
+	filename := filePath[strings.LastIndex(filePath, string(os.PathSeparator))+1:]
+
+	fout, err := os.Create(filePath)
+
+	if nil != err {
+		glog.Error(err)
+		data["succ"] = false
+
+		return
+	}
+
+	code := args["code"].(string)
+	fout.WriteString(code)
+
+	if err := fout.Close(); nil != err {
+		glog.Error(err)
+		data["succ"] = false
+
+		return
+	}
+
+	line := int(args["cursorLine"].(float64))
+	ch := int(args["cursorCh"].(float64))
+
+	offset := getCursorOffset(code, line, ch)
+
+	// TODO: 目前是调用 liteide_stub 工具来查找使用，后续需要重新实现
+	argv := []string{"type", "-cursor", filename + ":" + strconv.Itoa(offset), "-use", "."}
+	cmd := exec.Command("liteide_stub", argv...)
+	cmd.Dir = curDir
+
+	setCmdEnv(cmd, username)
+
+	output, err := cmd.CombinedOutput()
+	if nil != err {
+		glog.Error(err)
+		http.Error(w, err.Error(), 500)
+
+		return
+	}
+
+	result := strings.TrimSpace(string(output))
+	if "" == result {
+		data["succ"] = false
+
+		return
+	}
+
+	founds := strings.Split(result, "\n")
+	usages := []interface{}{}
+	for _, found := range founds {
+		found = strings.TrimSpace(found)
+
+		part := found[:strings.LastIndex(found, ":")]
+		cursorSep := strings.LastIndex(part, ":")
+		path := found[:cursorSep]
+		cursorLine := found[cursorSep+1 : strings.LastIndex(found, ":")]
+		cursorCh := found[strings.LastIndex(found, ":")+1:]
+
+		usage := map[string]string{}
+		usage["path"] = path
+		usage["cursorLine"] = cursorLine
+		usage["cursorCh"] = cursorCh
+
+		usages = append(usages, usage)
+	}
+
+	// glog.Infof("%s\n%s\n%s\n%s", found, path, cursorLine, cursorCh)
+
+	data["usages"] = usages
+}
+
 func getCursorOffset(code string, line, ch int) (offset int) {
 	lines := strings.Split(code, "\n")
 

file/files.go

@@ -193,7 +193,7 @@ type FileNode struct {
 	Name      string      `json:"name"`
 	Path      string      `json:"path"`
 	IconSkin  string      `json:"iconSkin"` // 值的末尾应该有一个空格
-	Type      string      `json:"type"`
+	Type      string      `json:"type"`     // "f"：文件，"d"：文件夹
 	Mode      string      `json:"mode"`
 	FileNodes []*FileNode `json:"children"`
 }

main.go

@@ -93,7 +93,8 @@ func main() {
 	http.HandleFunc("/editor/ws", editor.WSHandler)
 	http.HandleFunc("/go/fmt", editor.GoFmtHandler)
 	http.HandleFunc("/autocomplete", editor.AutocompleteHandler)
-	http.HandleFunc("/finddecl", editor.FindDeclarationHandler)
+	http.HandleFunc("/find/decl", editor.FindDeclarationHandler)
+	http.HandleFunc("/find/usages", editor.FindUsagesHandler)
 	http.HandleFunc("/html/fmt", editor.HTMLFmtHandler)
 	http.HandleFunc("/json/fmt", editor.JSONFmtHandler)
 

static/js/editor.js

@@ -138,7 +138,7 @@ var editors = {
 
             $.ajax({
                 type: 'POST',
-                url: '/finddecl',
+                url: '/find/decl',
                 data: JSON.stringify(request),
                 dataType: "json",
                 success: function(data) {
@@ -172,6 +172,33 @@ var editors = {
                 }
             });
         };
+
+        CodeMirror.commands.findUsages = function(cm) {
+            var cur = wide.curEditor.getCursor();
+
+            var request = {
+                file: wide.curNode.path,
+                code: wide.curEditor.getValue(),
+                cursorLine: cur.line,
+                cursorCh: cur.ch
+            };
+
+            $.ajax({
+                type: 'POST',
+                url: '/find/usages',
+                data: JSON.stringify(request),
+                dataType: "json",
+                success: function(data) {
+                    console.log(data);
+
+                    if (!data.succ) {
+                        return;
+                    }
+
+
+                }
+            });
+        };
     },
     newEditor: function(data) {
         $(".ico-fullscreen").show();
@@ -186,7 +213,7 @@ var editors = {
 
         editors.tabs.add({
             id: id,
-            title: '<span title="' + wide.curNode.path + '"><span class="' 
+            title: '<span title="' + wide.curNode.path + '"><span class="'
                     + wide.curNode.iconSkin + 'ico"></span>' + wide.curNode.name + '</span>',
             content: '<textarea id="editor' + id + '"></textarea>'
         });
@@ -218,7 +245,8 @@ var editors = {
                 "Ctrl-G": "gotoLine",
                 "Ctrl-E": "deleteLine",
                 "Ctrl-D": "doNothing", // 取消默认的 deleteLine
-                "Ctrl-B": "jumpToDecl"
+                "Ctrl-B": "jumpToDecl",
+                "Alt-F7": "findUsages"
             }
         });