@Override public void onDrop( DropEvent event ) { event.preventDefault(); if ( isAGridDrop( event ) ) { String gridData = event.getData( DragType.GRID.name() ); handleGridDrop( gridData ); } removeDropBorder(); } } );
@Override public void onDrop( DropEvent event ) { event.preventDefault(); if ( isAGridDrop( event ) ) { String gridData = event.getData( DragType.GRID.name() ); handleGridDrop( gridData ); } if ( isAScreenDrop( event ) ) { handleScreenDrop(); } if ( isHtmlDrop( event ) ) { handleHTMLDrop(); } } } );
@Override public void onDrop(DropEvent event) { event.preventDefault(); event.stopPropagation(); DataTransfer data = event.getNativeEvent().getDataTransfer(); uploadData(data); } }, DropEvent.getType());
@Override public void onDrop(DropEvent event) { event.preventDefault(); event.stopPropagation(); DataTransfer data = event.getNativeEvent().getDataTransfer(); uploadData(data); } }, DropEvent.getType());
@UiHandler("container") void onDrop(DropEvent event) { // Make sure to prevent the (useless) default browser action, // e.g. "open as link" for the dropped element. event.preventDefault(); int draggedColumnIndex = controller.getDragIndex(); int itemColumnIndex = controller.getColumnIndex(column); // Swap the columns. if (draggedColumnIndex != itemColumnIndex) { controller.swapColumns(controller.getColumn(draggedColumnIndex), column); } // Reset the drag index. controller.setDragIndex(ColumnController.NO_DRAG); }
@UiHandler("container") void onPanelDragDrop(DropEvent event) { String aggregatedString = event.getData("Text"); // $NON-NLS-1$ String[] dataItems = aggregatedString.split("\\|"); // $NON-NLS-1$ if (dataItems.length == 3) { String vmGid = getValue("VM_GID", dataItems[0]); // $NON-NLS-1$ if (StringHelper.isNotNullOrEmpty(vmGid)) { Guid vmGuid = Guid.createGuidFromString(vmGid); boolean pinned = Boolean.valueOf(getValue("PINNED", dataItems[1])); //$NON-NLS-1$ int vNumaNodeIndex = Integer.parseInt(getValue("INDEX", dataItems[2])); //$NON-NLS-1$ container.removeStyleName(style.dragOver()); event.preventDefault(); UpdatedVnumaEvent.fire(this, vmGuid, pinned, vNumaNodeIndex, pNumaNodeIndex); } else { container.removeStyleName(style.dragOver()); } } }
@Test public void dropCallsDragEnd() { StubAnchor a1 = new StubAnchor(); StubAnchor a2 = new StubAnchor(); boolean[] ended = { false }; a1.addDragStartHandler(e -> e.setData("text/plain", "foo")); a1.addDragEndHandler(e -> ended[0] = true); a2.addDragOverHandler(e -> { e.preventDefault(); }); a2.addDropHandler(e -> { e.preventDefault(); }); a1.dragStart(); a2.drop(); assertThat(ended[0], is(true)); }
@Test public void dataIsPassedToDrop() { StubAnchor a1 = new StubAnchor(); StubAnchor a2 = new StubAnchor(); boolean[] ended = { false }; a1.addDragStartHandler(e -> e.setData("text/plain", "foo")); a1.addDragEndHandler(e -> ended[0] = true); a2.addDragOverHandler(e -> { e.preventDefault(); }); a2.addDropHandler(e -> { assertThat(e.getData("text/plain"), is("foo")); e.preventDefault(); }); a1.dragStart(); a2.drop(); } }
private <T extends HasAllDragAndDropHandlers & IsWidget> void set(String type, IsFlowPanel root, Property<T> current, T a) { // just to see one of them not be draggable if (a != view.a4() && a != view.l4()) { a.getIsElement().setAttribute("draggable", "true"); } binder.when(draggingOver(a)).is(true).set(view.style().bold()).on(a); binder.when(dragging(a)).is(true).set(current).to(a); a.addDragStartHandler(e -> e.setData("text", type)); a.addDragOverHandler(e -> e.preventDefault()); a.addDropHandler(e -> { if (type.equals(e.getData("text")) && current.get() != a) { GWT.log("Dropped " + current + " onto " + a); root.remove(current.get()); root.insert(current.get(), root.getWidgetIndex(a)); } e.preventDefault(); }); }
@Test public void successfulDragAndDrop() { StubAnchor a1 = new StubAnchor(); StubAnchor a2 = new StubAnchor(); a1.addDragStartHandler(e -> e.setData("text/plain", "foo")); a2.addDragOverHandler(e -> { e.preventDefault(); }); a2.addDropHandler(e -> { e.preventDefault(); }); a1.dragStart(); a2.dragOver(); a2.drop(); }
@Test public void dropImplicitlyCallsOverIfNotExplicitlyCalled() { StubAnchor a1 = new StubAnchor(); StubAnchor a2 = new StubAnchor(); a1.addDragStartHandler(e -> e.setData("text/plain", "foo")); a2.addDragOverHandler(e -> { e.preventDefault(); }); a2.addDropHandler(e -> { e.preventDefault(); }); a1.dragStart(); // no explicit dragOver // a2.dragOver(); a2.drop(); }