public void installDndSupport(ChangeListOwner owner) { myDragOwner = owner; myDropTarget = new DropTarget(); myDndManager = DnDManager.getInstance(); myDndManager.registerSource(this); myDndManager.registerTarget(myDropTarget, this); }
@Override public void dispose() { if (myDropTarget != null) { myDndManager.unregisterSource(this); myDndManager.unregisterTarget(myDropTarget, this); myDropTarget = null; myDndManager = null; myDragOwner = null; } }
@Override public void dispose() { if (myDndManager != null) { if (myDropTarget != null) { myDndManager.unregisterTarget(myDropTarget, myTree); myDropTarget = null; } if (myDragSource != null) { myDndManager.unregisterSource(myDragSource, myTree); myDragSource = null; } myDndManager = null; } setTreeBuilder(null); myTree = null; myTreeStructure = null; }
protected void enableDnD() { if (!ApplicationManager.getApplication().isHeadlessEnvironment()) { myDropTarget = new ProjectViewDropTarget( myTree, new Retriever() { @Override public PsiElement getPsiElement(@Nullable TreeNode node) { return getPSIElement(getElementFromTreeNode(node)); } @Override public Module getModule(TreeNode treeNode) { return getNodeModule(getElementFromTreeNode(treeNode)); } }, myProject); myDragSource = new MyDragSource(); myDndManager = DnDManager.getInstance(); myDndManager.registerSource(myDragSource, myTree); myDndManager.registerTarget(myDropTarget, myTree); } }
protected final JTree createTree(boolean dndAware) { final Tree tree; final NullableFunction<Object, PsiElement> toPsiConverter = o -> { if (o instanceof HierarchyNodeDescriptor) { return ((HierarchyNodeDescriptor) o).getContainingFile(); } return null; }; if (dndAware) { tree = new DnDAwareTree(new DefaultTreeModel(new DefaultMutableTreeNode(""))) { @Override public void removeNotify() { super.removeNotify(); if (ScreenUtil.isStandardAddRemoveNotify(this)) myRefreshAction.unregisterCustomShortcutSet(this); } @Override public boolean isFileColorsEnabled() { return ProjectViewTree.isFileColorsEnabledFor(this); } @Override public Color getFileColorFor(Object object) { return ProjectViewTree.getColorForObject(object, myProject, toPsiConverter); } }; if (!ApplicationManager.getApplication().isHeadlessEnvironment()) { DnDManager.getInstance() .registerSource( new DnDSource() { @Override public boolean canStartDragging(final DnDAction action, final Point dragOrigin) { return getSelectedElements().length > 0; } @Override public DnDDragStartBean startDragging( final DnDAction action, final Point dragOrigin) { return new DnDDragStartBean( new TransferableWrapper() { @Override public TreeNode[] getTreeNodes() { return tree.getSelectedNodes(TreeNode.class, null); } @Override public PsiElement[] getPsiElements() { return getSelectedElements(); } @Override public List<File> asFileList() { return PsiCopyPasteManager.asFileList(getPsiElements()); } }); } @Override public Pair<Image, Point> createDraggedImage( final DnDAction action, final Point dragOrigin) { return null; } @Override public void dragDropEnd() {} @Override public void dropActionChanged(final int gestureModifiers) {} }, tree); } } else { tree = new Tree(new DefaultTreeModel(new DefaultMutableTreeNode(""))) { @Override public void removeNotify() { super.removeNotify(); if (ScreenUtil.isStandardAddRemoveNotify(this)) myRefreshAction.unregisterCustomShortcutSet(this); } @Override public boolean isFileColorsEnabled() { return ProjectViewTree.isFileColorsEnabledFor(this); } @Override public Color getFileColorFor(Object object) { return ProjectViewTree.getColorForObject(object, myProject, toPsiConverter); } }; } configureTree(tree); EditSourceOnDoubleClickHandler.install(tree); myRefreshAction.registerShortcutOn(tree); return tree; }