From 994648780fc62a2a59fe17d3baa4b0083c9d2d51 Mon Sep 17 00:00:00 2001
From: xtyuns <xtyuns@163.com>
Date: Tue, 17 Sep 2024 12:49:16 +0800
Subject: [PATCH] feature: var name transform (#936)

---
 src-tauri/src/main.rs                         |   2 +-
 .../Translate/components/SourceArea/index.jsx | 120 ++++++++++++++++--
 2 files changed, 109 insertions(+), 13 deletions(-)

diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 62534b76ef..61804c5b97 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -101,7 +101,7 @@ fn main() {
             }
             match get("proxy_enable") {
                 Some(v) => {
-                    if v.as_bool().unwrap() {
+                    if v.as_bool().unwrap() && get("proxy_host").map_or(false, |host| !host.as_str().unwrap().is_empty()) {
                         let _ = set_proxy();
                     }
                 }
diff --git a/src/window/Translate/components/SourceArea/index.jsx b/src/window/Translate/components/SourceArea/index.jsx
index 4c4f1c7d26..878a101ba6 100644
--- a/src/window/Translate/components/SourceArea/index.jsx
+++ b/src/window/Translate/components/SourceArea/index.jsx
@@ -20,6 +20,8 @@ import * as recognizeServices from '../../../../services/recognize';
 import * as builtinTtsServices from '../../../../services/tts';
 import detect from '../../../../utils/lang_detect';
 import { store } from '../../../../utils/store';
+import { info } from 'tauri-plugin-log-api';
+import { debug } from 'tauri-plugin-log-api';
 
 export const sourceTextAtom = atom('');
 export const detectLanguageAtom = atom('');
@@ -256,6 +258,111 @@ export default function SourceArea(props) {
         setDetectLanguage(await detect(text));
     };
 
+    let sourceTextChangeTimer = null;
+    const changeSourceText = async (text) => {
+        setDetectLanguage('');
+        await setSourceText(text);
+        if (dynamicTranslate) {
+            if (sourceTextChangeTimer) {
+                clearTimeout(sourceTextChangeTimer);
+            }
+            sourceTextChangeTimer = setTimeout(() => {
+                detect_language(text).then(() => {
+                    syncSourceText();
+                });
+            }, 1000);
+        }
+    }
+
+    const transformVarName = function (str) {
+        let str2 = str;
+
+        // snake_case to SNAKE_CASE
+        if (/_[a-z]/.test(str2)) {
+            str2 = str2.split('_').map(it => it.toLocaleUpperCase()).join('_');
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // SNAKE_CASE to kebab-case
+        if (/^[A-Z]+(_[A-Z]+)*$/.test(str2)) {
+            str2 = str2.split('_').map(it => it.toLocaleLowerCase()).join('-');
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // kebab-case to dot.notation
+        if (/-/.test(str2)) {
+            str2 = str2.split('-').map(it => it.toLocaleLowerCase()).join('.');
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // dot.notation to space separated
+        if (/\.[a-z]/.test(str2)) {
+            str2 = str2.replaceAll(/(\.)([a-z])/g, (_, _2, it) => ' ' + it);
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // space separated to Title Case
+        if (/\s[a-z]/.test(str2)) {
+            str2 = str2.replaceAll(/\s([a-z])/g, (_, it) => ' ' + it.toLocaleUpperCase());
+            str2 = str2.substring(0, 1).toLocaleUpperCase() + str2.substring(1);
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // Title Case to CamelCase
+        if (/\s[A-Z]/.test(str2)) {
+            str2 = str2.replaceAll(/\s([A-Z])/g, (_, it) => it);
+            str2 = str2.substring(0, 1).toLocaleLowerCase() + str2.substring(1);
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // CamelCase to PascalCase
+        if (/^[a-z]+[A-Z]+/.test(str2)) {
+            str2 = str2.substring(0, 1).toLocaleUpperCase() + str2.substring(1);
+        }
+        if (str2 !== str) {
+            return str2;
+        }
+
+        // PascalCase to snake_case
+        if (/[^\s][A-Z]/.test(str2)) {
+            str2 = str2.replaceAll(/[A-Z]/g, (it, offset) => {
+                return (offset == 0 ? '' : '_') + it.toLocaleLowerCase();
+            });
+        }
+
+        return str2;
+    }
+    useEffect(() => {
+        textAreaRef.current.addEventListener("keydown", async (event) => {
+            if (event.altKey && event.shiftKey && event.code === 'KeyU') {
+                const originText = textAreaRef.current.value;
+                const selectionStart = textAreaRef.current.selectionStart;
+                const selectionEnd = textAreaRef.current.selectionEnd;
+                const selectionText = originText.substring(selectionStart, selectionEnd);
+
+                const convertedText = transformVarName(selectionText);
+                const targetText = originText.substring(0, selectionStart) + convertedText + originText.substring(selectionEnd);
+
+                await changeSourceText(targetText);
+                textAreaRef.current.selectionStart = selectionStart;
+                textAreaRef.current.selectionEnd = selectionStart + convertedText.length;
+            }
+        });
+    }, [textAreaRef]);
+
+
     return (
         <div className={hideSource && windowType !== '[INPUT_TRANSLATE]' && 'hidden'}>
             <Card
@@ -272,18 +379,7 @@ export default function SourceArea(props) {
                         onKeyDown={keyDown}
                         onChange={(e) => {
                             const v = e.target.value;
-                            setDetectLanguage('');
-                            setSourceText(v);
-                            if (dynamicTranslate) {
-                                if (timer) {
-                                    clearTimeout(timer);
-                                }
-                                timer = setTimeout(() => {
-                                    detect_language(v).then(() => {
-                                        syncSourceText();
-                                    });
-                                }, 1000);
-                            }
+                            changeSourceText(v);
                         }}
                     />
                 </CardBody>