public static void installMouseListener()

in PluginsAndFeatures/azure-toolkit-for-intellij/azure-intellij-plugin-lib/src/main/java/com/microsoft/azure/toolkit/intellij/common/component/TreeUtils.java [115:181]
65 lines of code
16 McCabe index (conditional complexity)

    public static void installMouseListener(@Nonnull JTree tree) {
        tree.addMouseMotionListener(new MouseMotionAdapter() {
            @Override
            public void mouseMoved(MouseEvent e) {
                final Tree.TreeNode<?> node = getTreeNodeAtMouse(tree, e);
                final boolean isMouseAtActionIcon = getHoverInlineActionIndex(tree, e, Optional.ofNullable(node)
                    .map(Tree.TreeNode::getInlineActionViews).map(List::size).orElse(0)) > -1;
                final Cursor cursor = isMouseAtActionIcon ? Cursor.getPredefinedCursor(Cursor.HAND_CURSOR) : Cursor.getDefaultCursor();
                tree.setCursor(cursor);
            }
        });
        final MouseAdapter popupHandler = new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                final Object n = tree.getLastSelectedPathComponent();
                if (n instanceof Tree.TreeNode) {
                    final Tree.TreeNode<?> node = (Tree.TreeNode<?>) n;
                    clickNode(e, node);
                } else if (n instanceof Tree.LoadMoreNode && SwingUtilities.isLeftMouseButton(e) && e.getClickCount() == 2) {
                    ((Tree.LoadMoreNode) n).load();
                }
                super.mouseClicked(e);
            }

            @AzureOperation(name = "user/$resource.click_node.resource", params = {"node.inner.getValue()"}, source = "node.inner.getValue()")
            private static void clickNode(final MouseEvent e, final Tree.TreeNode<?> node) {
                final JTree tree = node.tree;
                String place = TreeUtils.getPlace(tree) + "." + (TreeUtils.underAppGroups(node) ? "app" : "type");
                if (SwingUtilities.isRightMouseButton(e) || e.isPopupTrigger()) {
                    final IActionGroup actions = node.inner.getActions();
                    if (Objects.nonNull(actions)) {
                        final ActionManager am = ActionManager.getInstance();
                        final IntellijAzureActionManager.ActionGroupWrapper group = toIntellijActionGroup(actions);
                        place += ".menu";
                        final ActionPopupMenu menu = am.createActionPopupMenu(place, group);
                        menu.setTargetComponent(tree);
                        final JPopupMenu popupMenu = menu.getComponent();
                        popupMenu.show(tree, e.getX(), e.getY());
                    }
                } else {
                    final DataContext context = DataManager.getInstance().getDataContext(tree);
                    place += ".node";
                    final AnActionEvent event = AnActionEvent.createFromAnAction(new EmptyAction(), e, place, context);
                    if (e.getClickCount() == 1) {
                        node.inner.click(event);
                    } else if (e.getClickCount() == 2) {
                        node.inner.doubleClick(event);
                    }
                }
            }

            @Override
            public void mousePressed(MouseEvent e) {
                final Tree.TreeNode<?> node = getTreeNodeAtMouse(tree, e);
                final List<IView.Label> inlineActionViews = Optional.ofNullable(node)
                    .map(Tree.TreeNode::getInlineActionViews).orElse(new ArrayList<>());
                final int inlineActionIndex = getHoverInlineActionIndex(tree, e, inlineActionViews.size());
                if (Objects.nonNull(node) && e.getClickCount() == 1 && inlineActionIndex > -1) {
                    final String place = TreeUtils.getPlace(tree) + "." + (TreeUtils.underAppGroups(node) ? "app" : "type") + ".inline";
                    final DataContext context = DataManager.getInstance().getDataContext(tree);
                    final AnActionEvent event = AnActionEvent.createFromAnAction(new EmptyAction(), e, place, context);
                    node.inner.triggerInlineAction(event, inlineActionIndex, TreeUtils.getPlace(tree));
                }
            }
        };
        tree.addMouseListener(popupHandler);
    }