private registerListeners()

in src/vs/workbench/contrib/debug/browser/breakpointEditorContribution.ts [175:289]
97 lines of code
39 McCabe index (conditional complexity)

	private registerListeners(): void {
		this.toDispose.push(this.editor.onMouseDown(async (e: IEditorMouseEvent) => {
			const data = e.target.detail as IMarginData;
			const model = this.editor.getModel();
			if (!e.target.position || !model || e.target.type !== MouseTargetType.GUTTER_GLYPH_MARGIN || data.isAfterLines || !this.marginFreeFromNonDebugDecorations(e.target.position.lineNumber)) {
				return;
			}
			const canSetBreakpoints = this.debugService.getConfigurationManager().canSetBreakpointsIn(model);
			const lineNumber = e.target.position.lineNumber;
			const uri = model.uri;

			if (e.event.rightButton || (env.isMacintosh && e.event.leftButton && e.event.ctrlKey)) {
				if (!canSetBreakpoints) {
					return;
				}

				const anchor = { x: e.event.posx, y: e.event.posy };
				const breakpoints = this.debugService.getModel().getBreakpoints({ lineNumber, uri });
				const actions = this.getContextMenuActions(breakpoints, uri, lineNumber);

				this.contextMenuService.showContextMenu({
					getAnchor: () => anchor,
					getActions: () => actions,
					getActionsContext: () => breakpoints.length ? breakpoints[0] : undefined,
					onHide: () => dispose(actions)
				});
			} else {
				const breakpoints = this.debugService.getModel().getBreakpoints({ uri, lineNumber });

				if (breakpoints.length) {
					// Show the dialog if there is a potential condition to be accidently lost.
					// Do not show dialog on linux due to electron issue freezing the mouse #50026
					if (!env.isLinux && breakpoints.some(bp => !!bp.condition || !!bp.logMessage || !!bp.hitCondition)) {
						const logPoint = breakpoints.every(bp => !!bp.logMessage);
						const breakpointType = logPoint ? nls.localize('logPoint', "Logpoint") : nls.localize('breakpoint', "Breakpoint");
						const disable = breakpoints.some(bp => bp.enabled);

						const enabling = nls.localize('breakpointHasConditionDisabled',
							"This {0} has a {1} that will get lost on remove. Consider enabling the {0} instead.",
							breakpointType.toLowerCase(),
							logPoint ? nls.localize('message', "message") : nls.localize('condition', "condition")
						);
						const disabling = nls.localize('breakpointHasConditionEnabled',
							"This {0} has a {1} that will get lost on remove. Consider disabling the {0} instead.",
							breakpointType.toLowerCase(),
							logPoint ? nls.localize('message', "message") : nls.localize('condition', "condition")
						);

						const { choice } = await this.dialogService.show(severity.Info, disable ? disabling : enabling, [
							nls.localize('removeLogPoint', "Remove {0}", breakpointType),
							nls.localize('disableLogPoint', "{0} {1}", disable ? nls.localize('disable', "Disable") : nls.localize('enable', "Enable"), breakpointType),
							nls.localize('cancel', "Cancel")
						], { cancelId: 2 });

						if (choice === 0) {
							breakpoints.forEach(bp => this.debugService.removeBreakpoints(bp.getId()));
						}
						if (choice === 1) {
							breakpoints.forEach(bp => this.debugService.enableOrDisableBreakpoints(!disable, bp));
						}
					} else {
						breakpoints.forEach(bp => this.debugService.removeBreakpoints(bp.getId()));
					}
				} else if (canSetBreakpoints) {
					this.debugService.addBreakpoints(uri, [{ lineNumber }], `debugEditorGutter`);
				}
			}
		}));

		if (!(BrowserFeatures.pointerEvents && isSafari)) {
			/**
			 * We disable the hover feature for Safari on iOS as
			 * 1. Browser hover events are handled specially by the system (it treats first click as hover if there is `:hover` css registered). Below hover behavior will confuse users with inconsistent expeirence.
			 * 2. When users click on line numbers, the breakpoint hint displays immediately, however it doesn't create the breakpoint unless users click on the left gutter. On a touch screen, it's hard to click on that small area.
			 */
			this.toDispose.push(this.editor.onMouseMove((e: IEditorMouseEvent) => {
				let showBreakpointHintAtLineNumber = -1;
				const model = this.editor.getModel();
				if (model && e.target.position && (e.target.type === MouseTargetType.GUTTER_GLYPH_MARGIN || e.target.type === MouseTargetType.GUTTER_LINE_NUMBERS) && this.debugService.getConfigurationManager().canSetBreakpointsIn(model) &&
					this.marginFreeFromNonDebugDecorations(e.target.position.lineNumber)) {
					const data = e.target.detail as IMarginData;
					if (!data.isAfterLines) {
						showBreakpointHintAtLineNumber = e.target.position.lineNumber;
					}
				}
				this.ensureBreakpointHintDecoration(showBreakpointHintAtLineNumber);
			}));
			this.toDispose.push(this.editor.onMouseLeave(() => {
				this.ensureBreakpointHintDecoration(-1);
			}));
		}


		this.toDispose.push(this.editor.onDidChangeModel(async () => {
			this.closeBreakpointWidget();
			await this.setDecorations();
		}));
		this.toDispose.push(this.debugService.getModel().onDidChangeBreakpoints(() => {
			if (!this.ignoreBreakpointsChangeEvent && !this.setDecorationsScheduler.isScheduled()) {
				this.setDecorationsScheduler.schedule();
			}
		}));
		this.toDispose.push(this.debugService.onDidChangeState(() => {
			// We need to update breakpoint decorations when state changes since the top stack frame and breakpoint decoration might change
			if (!this.setDecorationsScheduler.isScheduled()) {
				this.setDecorationsScheduler.schedule();
			}
		}));
		this.toDispose.push(this.editor.onDidChangeModelDecorations(() => this.onModelDecorationsChanged()));
		this.toDispose.push(this.configurationService.onDidChangeConfiguration(async (e) => {
			if (e.affectsConfiguration('debug.showBreakpointsInOverviewRuler') || e.affectsConfiguration('debug.showInlineBreakpointCandidates')) {
				await this.setDecorations();
			}
		}));
	}