1 files changed, 108 insertions, 0 deletions
diff --git a/src/CodeParserController.ts b/src/CodeParserController.ts
new file mode 100644
index 0000000..32d1d75
--- /dev/null
+++ b/src/CodeParserController.ts
@@ -0,0 +1,108 @@
+import {
+    Disposable,
+    Position,
+    Range,
+    TextDocumentContentChangeEvent,
+    TextEditor,
+    TextLine,
+    window,
+    workspace,
+} from "vscode";
+import CodeParser from "./Common/ICodeParser";
+import { Config } from "./Config";
+import CParser from "./Lang/C/CParser";
+/**
+ *
+ * Checks if the event matches the specified guidelines and if a parser exists for this language
+ *
+ * @export
+ * @class CodeParserController
+ */
+export default class CodeParserController {
+    private disposable: Disposable;
+    private cfg: Config;
+
+    /**
+     * Creates an instance of CodeParserController
+     *
+     * @memberOf CodeParserController
+     */
+    public constructor() {
+        const subscriptions: Disposable[] = [];
+
+        // Hand off the event to the parser if a valid parser is found
+        workspace.onDidChangeTextDocument((event) => {
+            const activeEditor: TextEditor = window.activeTextEditor;
+            if (activeEditor && event.document === activeEditor.document) {
+                this.cfg = Config.ImportFromSettings();
+                this.onEvent(activeEditor, event.contentChanges[0]);
+            }
+        }, this, subscriptions);
+
+        this.disposable = Disposable.from(...subscriptions);
+    }
+
+    /**
+     *
+     * Disposes of the subscriptions
+     *
+     * @memberOf CodeParserController
+     */
+    public dispose() {
+        this.disposable.dispose();
+    }
+
+    /***************************************************************************
+                                    Implementation
+     ***************************************************************************/
+
+    private check(activeEditor: TextEditor, event: TextDocumentContentChangeEvent): boolean {
+        if (activeEditor == null || event.text == null) {
+            return false;
+        }
+        const activeSelection: Position = activeEditor.selection.active;
+        const activeLine: TextLine = activeEditor.document.lineAt(activeSelection.line);
+        const activeChar: string = activeLine.text.charAt(activeSelection.character);
+        const startsWith: boolean = event.text.startsWith("\n") || event.text.startsWith("\r\n");
+
+        // Check if enter was pressed. Note the !
+        if (!((activeChar === "") && startsWith)) {
+            return false;
+        }
+
+        const cont: string = activeLine.text.trim();
+
+        return this.cfg.triggerSequence === cont;
+    }
+
+    private onEvent(activeEditor: TextEditor, event: TextDocumentContentChangeEvent) {
+        if (!this.check(activeEditor, event)) {
+            return null;
+        }
+
+        const lang: string = activeEditor.document.languageId;
+        let parser: CodeParser;
+
+        switch (lang) {
+            case "c":
+            case "cpp":
+                parser = new CParser(this.cfg);
+                break;
+            default:
+                // tslint:disable-next-line:no-console
+                console.log("No comments can be generated for language: " + lang);
+                return null;
+        }
+
+        const currentPos: Position = window.activeTextEditor.selection.active;
+        const startReplace: Position = new Position(
+            currentPos.line,
+            currentPos.character - this.cfg.triggerSequence.length,
+        );
+
+        const nextLineText: string = window.activeTextEditor.document.lineAt(startReplace.line + 1).text;
+        const endReplace = new Position(currentPos.line + 1, nextLineText.length);
+
+        parser.Parse(activeEditor).GenerateDoc(new Range(startReplace, endReplace));
+    }
+}