constructor(private sender: Sender, onMessageEvent: Event<any>) {
		const emitter = new Emitter<any>();
		onMessageEvent(msg => emitter.fire(msg));
		this._onMessage = emitter.event;
	}

	public setSelectedConfigurationName(configurationName: string): void {
		this._selectedConfigurationName = configurationName;
		this._onDidSelectConfigurationName.fire(configurationName);
	}

		this.toDispose.push(this.model.addListener('highlight', () => this._onHighlightChange.fire()));

		this._xterm.on('lineFeed', () => this._onCheckShell.fire());

	public setSelectedFunctionBreakpoint(functionBreakpoint: debug.IFunctionBreakpoint): void {
		this.selectedFunctionBreakpoint = functionBreakpoint;
		this._onDidSelectFunctionBreakpoint.fire(functionBreakpoint);
	}

	public change(newState: INewFindReplaceState, moveCursor: boolean, updateHistory: boolean = true): void {
		let changeEvent: FindReplaceStateChangedEvent = {
			moveCursor: moveCursor,
			updateHistory: updateHistory,
			searchString: false,
			replaceString: false,
			isRevealed: false,
			isReplaceRevealed: false,
			isRegex: false,
			wholeWord: false,
			matchCase: false,
			searchScope: false,
			matchesPosition: false,
			matchesCount: false,
			currentMatch: false
		};
		let somethingChanged = false;

		const oldEffectiveIsRegex = this.isRegex;
		const oldEffectiveWholeWords = this.wholeWord;
		const oldEffectiveMatchCase = this.matchCase;

		if (typeof newState.searchString !== 'undefined') {
			if (this._searchString !== newState.searchString) {
				this._searchString = newState.searchString;
				changeEvent.searchString = true;
				somethingChanged = true;
			}
		}
		if (typeof newState.replaceString !== 'undefined') {
			if (this._replaceString !== newState.replaceString) {
				this._replaceString = newState.replaceString;
				changeEvent.replaceString = true;
				somethingChanged = true;
			}
		}
		if (typeof newState.isRevealed !== 'undefined') {
			if (this._isRevealed !== newState.isRevealed) {
				this._isRevealed = newState.isRevealed;
				changeEvent.isRevealed = true;
				somethingChanged = true;
			}
		}
		if (typeof newState.isReplaceRevealed !== 'undefined') {
			if (this._isReplaceRevealed !== newState.isReplaceRevealed) {
				this._isReplaceRevealed = newState.isReplaceRevealed;
				changeEvent.isReplaceRevealed = true;
				somethingChanged = true;
			}
		}
		if (typeof newState.isRegex !== 'undefined') {
			this._isRegex = newState.isRegex;
		}
		if (typeof newState.wholeWord !== 'undefined') {
			this._wholeWord = newState.wholeWord;
		}
		if (typeof newState.matchCase !== 'undefined') {
			this._matchCase = newState.matchCase;
		}
		if (typeof newState.searchScope !== 'undefined') {
			if (!Range.equalsRange(this._searchScope, newState.searchScope)) {
				this._searchScope = newState.searchScope;
				changeEvent.searchScope = true;
				somethingChanged = true;
			}
		}

		// Overrides get set when they explicitly come in and get reset anytime something else changes
		this._isRegexOverride = (typeof newState.isRegexOverride !== 'undefined' ? newState.isRegexOverride : FindOptionOverride.NotSet);
		this._wholeWordOverride = (typeof newState.wholeWordOverride !== 'undefined' ? newState.wholeWordOverride : FindOptionOverride.NotSet);
		this._matchCaseOverride = (typeof newState.matchCaseOverride !== 'undefined' ? newState.matchCaseOverride : FindOptionOverride.NotSet);

		if (oldEffectiveIsRegex !== this.isRegex) {
			somethingChanged = true;
			changeEvent.isRegex = true;
		}
		if (oldEffectiveWholeWords !== this.wholeWord) {
			somethingChanged = true;
			changeEvent.wholeWord = true;
		}
		if (oldEffectiveMatchCase !== this.matchCase) {
			somethingChanged = true;
			changeEvent.matchCase = true;
		}

		if (somethingChanged) {
			this._onFindReplaceStateChange.fire(changeEvent);
		}
	}

	public setFocusedStackFrame(focusedStackFrame: debug.IStackFrame): void {
		this.focusedStackFrame = focusedStackFrame;
		this._onDidFocusStackFrame.fire(focusedStackFrame);
	}

	private handleMetadataChanged(meta: string): void {
		this.metadata = meta;
		this._onMetadataChanged.fire();
	}

		this._xterm.on('cursormove', () => {
			if (this._newLineFeed) {
				this._onCheckShell.fire();
			}
		});

	public removeCodeEditor(editor: ICommonCodeEditor): void {
		if (delete this._codeEditors[editor.getId()]) {
			this._onCodeEditorRemove.fire(editor);
		}
	}