add configuration to support overwrite word only when cursor is in middle of word

package.json

@@ -2,7 +2,7 @@
     "name": "copy-word",
     "displayName": "Copy Word in Cursor",
     "description": "Copy/Cut the current word when there is no selection",
-    "version": "3.10.0",
+    "version": "3.11.0",
     "publisher": "alefragnani",
     "galleryBanner": {
         "color": "#0000FF",
@@ -62,6 +62,11 @@
                     "type": "boolean",
                     "default": false,
                     "description": "%copy-word.configuration.useOriginalCopyBehavior.description%"
+                },
+                "copyWord.overwriteWordBehavior": {
+                    "type": "boolean",
+                    "default": false,
+                    "description": "%copy-word.configuration.overwriteWordBehavior.description%"
                 }
             }
         }

package.nls.json

@@ -3,5 +3,6 @@
     "copy-word.commands.cut.title": "Copy Word: Cut",
     "copy-word.commands.paste.title": "Copy Word: Paste",
     "copy-word.configuration.title": "Copy Word in Cursor",
-    "copy-word.configuration.useOriginalCopyBehavior.description": "Use original Cut/Copy behavior when no text is selected and no current word is defined."
+    "copy-word.configuration.useOriginalCopyBehavior.description": "Use original Cut/Copy behavior when no text is selected and no current word is defined.",
+    "copy-word.configuration.overwriteWordBehavior.description": "Overwrite word only when cursor is in middle of word."
 }

package.nls.zh-cn.json

@@ -0,0 +1,8 @@
+{
+    "copy-word.commands.copy.title": "复制单词: 复制",
+    "copy-word.commands.cut.title": "复制单词: 剪切",
+    "copy-word.commands.paste.title": "复制单词: 粘贴",
+    "copy-word.configuration.title": "复制光标处的单词",
+    "copy-word.configuration.useOriginalCopyBehavior.description": "当没有文本选中且没有定义当前单词时，使用原始的剪切复制行为。",
+    "copy-word.configuration.overwriteWordBehavior.description": "仅当光标在单词中间时覆盖单词。"
+}

src/commands.ts

@@ -19,7 +19,7 @@ export function registerCommands() {
 
         return true;
     }
-    
+
     commands.registerCommand("copy-word.copy", async () => {
         if (!canExecuteOperation(Operations.Copy)) { return; }
 
@@ -61,11 +61,21 @@ export function registerCommands() {
 
         const editor = window.activeTextEditor!;
         if (editor.selection.isEmpty) {
-            selectWordAtCursorPosition(editor);
+            if (overwriteWordOnlyWhenMiddle()) {
+                const cursorPosition = editor.selection.active;
+                const cursorWordRange = editor.document.getWordRangeAtPosition(cursorPosition);
+
+                if (cursorWordRange?.start.isBefore(cursorPosition) && cursorPosition.isBefore(cursorWordRange.end)) {
+                    selectWordAtCursorPosition(editor);
+                }
+            } else {
+                selectWordAtCursorPosition(editor);
+            }
         }
         commands.executeCommand("editor.action.clipboardPasteAction");
     });
 
     const configuredToCopyLine = () => workspace.getConfiguration('copyWord').get('useOriginalCopyBehavior');
+    const overwriteWordOnlyWhenMiddle = () => workspace.getConfiguration('copyWord').get('overwriteWordBehavior');
 
 }

src/test/setupTests.ts

@@ -9,8 +9,13 @@ export async function setupTestSuite(originalValues) {
     originalValues.useOriginalCopyBehavior = vscode.workspace.getConfiguration("copyWord").get<boolean>("useOriginalCopyBehavior", false);
 
     await vscode.workspace.getConfiguration('copyWord').update('useOriginalCopyBehavior', false);
+
+    originalValues.overwriteWordBehavior = vscode.workspace.getConfiguration("copyWord").get<boolean>("overwriteWordBehavior", false);
+
+    await vscode.workspace.getConfiguration('copyWord').update('overwriteWordBehavior', false);
 }
 
 export async function teardownTestSuite(originalValues) {
     await vscode.workspace.getConfiguration('copyWord').update('useOriginalCopyBehavior', originalValues.useOriginalCopyBehavior);
-}
+    await vscode.workspace.getConfiguration('copyWord').update('overwriteWordBehavior', originalValues.overwriteWordBehavior);
+}

src/test/suite/commands.test.ts

@@ -7,12 +7,176 @@ import * as vscode from 'vscode';
 import * as assert from 'assert';
 import * as sinon from 'sinon';
 import { setupTestSuite, teardownTestSuite } from '../setupTests';
+import { Operations } from '../../constants';
+
+type PACKAGE_NAME = 'copy-word';
+type CommandsType = `${Operations}`;
+type Commands = `${PACKAGE_NAME}.${CommandsType}`;
+
+type Public<T> = { [K in keyof T]: T[K] };
+
+class CommandTestHelper {
+    doc!: vscode.TextDocument;
+    static fileCopys = new Set<string>();
+    async open(name = 'test2.md') {
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion, @typescript-eslint/no-unnecessary-type-assertion
+        const workspaceUri = vscode.workspace.workspaceFolders![0]!.uri;
+        const filename = vscode.Uri.joinPath(workspaceUri, 'test.md');
+        const filename2 = vscode.Uri.joinPath(workspaceUri, name);
+        CommandTestHelper.fileCopys.add(filename2.toString());
+        await vscode.workspace.fs.copy(filename, filename2, { overwrite: true });
+        const doc = await vscode.workspace.openTextDocument(filename2);
+        this.doc = doc;
+        const originalDoc = await vscode.workspace.openTextDocument(filename);
+        const editor = await vscode.window.showTextDocument(this.doc);
+        const originalText = originalDoc.getText();
+        if (originalText !== doc.getText()) {
+            // sometimes not same, fix it
+            await editor.edit((builder) => {
+                builder.replace(new vscode.Range(0, 0, 1e4, 1e4), originalText);
+            });
+        }
+        assert.strictEqual(originalText, doc.getText(), 'file copy content should same to original');
+        return this.api();
+    }
+    static async clean() {
+        await vscode.commands.executeCommand('workbench.action.closeAllGroups');
+        const autoSave = vscode.workspace.getConfiguration('files').get<string>('autoSave');
+        if (autoSave !== 'off') {
+            // avoid deleted file appear again
+            await vscode.workspace.getConfiguration('files').update('autoSave', 'off');
+        }
+        for (const file of this.fileCopys) {
+            await vscode.workspace.fs.delete(vscode.Uri.parse(file));
+        }
+        this.fileCopys.clear();
+        if (autoSave !== 'off') {
+            await vscode.workspace.getConfiguration('files').update('autoSave', autoSave);
+        }
+    }
+
+    rangeOfWord(word: string) {
+        for (let index = 0; index < this.doc.lineCount; index++) {
+            const startColumn = this.doc.lineAt(index).text.indexOf(word);
+            if (startColumn > -1) {
+                return new vscode.Range(new vscode.Position(index, startColumn), new vscode.Position(index, startColumn + word.length));
+            }
+        }
+        throw new Error(`can not find word ${word}\n${this.doc.getText()}`);
+    }
+    putCursorAtWord(word: string | vscode.Range, offset: 'start' | 'end' | 'middle' | number) {
+        const range = typeof word === 'string' ? this.rangeOfWord(word) : word;
+        const positionWithOffset = (range: vscode.Range) => {
+            if (typeof offset === 'number') {
+
+                return range.start.with({ character: (offset >= 0) ? range.start.character + offset : range.end.character + offset });
+            } else {
+                switch (offset) {
+                    case 'start':
+                        return range.start;
+                    case 'end':
+                        return range.end;
+                    case 'middle':
+                        return range.start.with({ character: Math.floor((range.start.character + range.end.character) / 2) });
+                }
+            }
+        };
+        const position: vscode.Position = positionWithOffset(range);
+        const sel = new vscode.Selection(position, position);
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion, @typescript-eslint/no-unnecessary-type-assertion
+        vscode.window.activeTextEditor!.selection = sel;
+
+    }
+    async copyWord(word: string) {
+        // put the cursor at the  word 
+        this.putCursorAtWord(word, 'start');
+
+        // runs the command, copy `thank` word
+        await this.runCommand('copy-word.copy');
+    }
+
+    private config = vscode.workspace.getConfiguration('copyWord');
+    get useOriginalCopyBehavior() {
+        return this.config.get<boolean>('useOriginalCopyBehavior');
+    }
+    async setUseOriginalCopyBehavior(value: boolean) {
+        await this.config.update('useOriginalCopyBehavior', value);
+    }
+    get overwriteWordBehavior() {
+        return this.config.get<boolean>('overwriteWordBehavior');
+    }
+    async setOverwriteWordBehavior(value: boolean) {
+        await this.config.update('overwriteWordBehavior', value);
+    }
+    async runCommand(cmd: Commands, settings?: {
+        useOriginalCopyBehavior?: boolean,
+        overwriteWordBehavior?: boolean,
+    }) {
+        // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+        if (settings?.useOriginalCopyBehavior) {
+            await this.setUseOriginalCopyBehavior(settings.useOriginalCopyBehavior);
+        }
+        // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+        if (settings?.overwriteWordBehavior) {
+            await this.setOverwriteWordBehavior(settings.overwriteWordBehavior);
+        }
+        await vscode.commands.executeCommand(cmd);
+    }
+    async getWordAtPosition(position: vscode.Position, timeout = 500) {
+        // wait paste finish
+        await new Promise((resolve, reject) => {
+            const timer = setTimeout(() => {
+                reject(new Error(`Promise timed out after ${timeout} ms`));
+            }, timeout);
+            const dispose = vscode.workspace.onDidChangeTextDocument((event) => {
+                clearTimeout(timer);
+                resolve(event);
+                dispose.dispose();
+            });
+        });
+        const textRange = this.doc.getWordRangeAtPosition(position);
+        return this.doc.getText(textRange);
+    }
+    getLineAtPosition(position: vscode.Position) {
+        return this.doc.lineAt(position.line).text;
+    }
+    async setClipboard(value: string) {
+        await vscode.env.clipboard.writeText(value);
+    }
+
+    private api(): Omit<Public<CommandTestHelper>, 'open'> {
+        const that = this as CommandTestHelper;
+        return {
+            /* eslint-disable @typescript-eslint/no-unsafe-assignment*/
+            doc: that.doc,
+            rangeOfWord: that.rangeOfWord.bind(that),
+            putCursorAtWord: that.putCursorAtWord.bind(that),
+            get useOriginalCopyBehavior() { return that.useOriginalCopyBehavior; },
+            async setUseOriginalCopyBehavior(value: boolean) {
+                await that.setUseOriginalCopyBehavior(value);
+            },
+            get overwriteWordBehavior() { return that.overwriteWordBehavior; },
+            async setOverwriteWordBehavior(value: boolean) {
+                await that.setUseOriginalCopyBehavior(value);
+            },
+            runCommand: that.runCommand.bind(that),
+            copyWord: that.copyWord.bind(that),
+            getWordAtPosition: that.getWordAtPosition.bind(that),
+            getLineAtPosition: that.getLineAtPosition.bind(that),
+            setClipboard: that.setClipboard.bind(that)
+            /* eslint-enable @typescript-eslint/no-unsafe-assignment*/
+        };
+    }
+}
 
 suite('Copy Command Test Suite', () => {
-    
+
     const originalValue = {};
     suiteSetup(async () => await setupTestSuite(originalValue));
-    suiteTeardown(async () => await teardownTestSuite(originalValue));
+    suiteTeardown(async () => {
+        await teardownTestSuite(originalValue);
+        await CommandTestHelper.clean();
+    });
 
     test('can copy word', async () => {
         // opens a file
@@ -23,7 +187,7 @@ suite('Copy Command Test Suite', () => {
         // put the cursor at the `thank` word 
         const sel = new vscode.Selection(new vscode.Position(2, 16), new vscode.Position(2, 16));
         vscode.window.activeTextEditor.selection = sel;
-        
+
         // runs the command
         await vscode.commands.executeCommand('copy-word.copy');
 
@@ -45,7 +209,7 @@ suite('Copy Command Test Suite', () => {
         // put the cursor at the `thank` word 
         const sel = new vscode.Selection(new vscode.Position(2, 16), new vscode.Position(2, 18));
         vscode.window.activeTextEditor.selection = sel;
-        
+
         // runs the command
         await vscode.commands.executeCommand('copy-word.copy');
 
@@ -80,7 +244,7 @@ suite('Copy Command Test Suite', () => {
         await vscode.workspace.getConfiguration('copyWord').update('useOriginalCopyBehavior', true);
         await vscode.commands.executeCommand('copy-word.copy');
         await vscode.workspace.getConfiguration('copyWord').update('useOriginalCopyBehavior', false);
-        
+
         // get the newly selected text
         const textInClipboard = await vscode.env.clipboard.readText();
         const lineText = vscode.window.activeTextEditor.document.lineAt(2).text;
@@ -98,7 +262,7 @@ suite('Copy Command Test Suite', () => {
         // put the cursor at an empty line
         const sel = new vscode.Selection(new vscode.Position(3, 0), new vscode.Position(3, 0));
         vscode.window.activeTextEditor.selection = sel;
-        
+
         // runs the command
         await vscode.commands.executeCommand('copy-word.copy');
 
@@ -117,12 +281,64 @@ suite('Copy Command Test Suite', () => {
 
         const mock = sinon.mock(vscode.window);
         const expectation = mock.expects("showInformationMessage");
-        
+
         // runs the command
         await vscode.commands.executeCommand('copy-word.copy');
 
         mock.restore();
-        
+
         assert(expectation.calledOnce);
     });
+
+    test('will override text when cursor in word sides (when "overwriteWordBehavior" is false)', async () => {
+        const helper = new CommandTestHelper();
+        await helper.setClipboard('thank');
+        const tests: [Parameters<CommandTestHelper['putCursorAtWord']>[1], string][] = [
+            ['start', 'thank'],
+            ['end', 'thank'],
+            ['middle', 'thank']
+        ];
+        for (const [position, result] of tests) {
+            // opens a file
+            const { putCursorAtWord, runCommand, rangeOfWord, getWordAtPosition, getLineAtPosition } = await helper.open();
+            const you = rangeOfWord('you');
+            // put the cursor at the left/right/middle side of `you` word
+            putCursorAtWord(you, position);
+
+            // runs the command, paste `thank` word, (with the required setting)
+            await runCommand('copy-word.paste', { overwriteWordBehavior: false });
+
+            // get the text at the position
+            const text = await getWordAtPosition(you.start);
+
+            // should all be `thank`
+            assert.strictEqual(text, result, `paste at ${position} side\n\t${getLineAtPosition(you.start)}`);
+        }
+    });
+
+    test('will not override text when cursor in word sides (when "overwriteWordBehavior" is true)', async () => {
+        const helper = new CommandTestHelper();
+        await helper.setClipboard('thank');
+        const tests: [Parameters<CommandTestHelper['putCursorAtWord']>[1], string][] = [
+            ['start', 'thankyou'],
+            ['end', 'youthank'],
+            ['middle', 'thank']
+        ];
+        for (const [position, result] of tests) {
+            // opens a file
+            const { putCursorAtWord, runCommand, rangeOfWord, getWordAtPosition, getLineAtPosition } = await helper.open();
+            const you = rangeOfWord('you');
+            // put the cursor at the left/right/middle side of `you` word
+            putCursorAtWord(you, position);
+
+            // runs the command, paste `thank` word, (with the required setting)
+            await runCommand('copy-word.paste', { overwriteWordBehavior: true });
+
+            // get the text at the position
+            const text = await getWordAtPosition(you.start);
+
+            // should all be `thank` only when middle
+            assert.strictEqual(text, result, `paste at ${position} side\n\t${getLineAtPosition(you.start)}`);
+        }
+    });
 });