The icon will change to a simple icon indicating that the object is Hidden from view. To hide an object, click the eye icon in the Selection Pane indicating that the object is Showing.
The connector is at the bottom of the list, and is behind the two oval shapes.Īfter the connector is moved to the top of the list, it shows up in front of the two oval shapes.Ĭhoose to show or hide objects from the Selection Pane. In the example below from PowerPoint, moving the curved connector to the top of the list also brought it forward in front of the two oval shapes (and everything else on the slide).
The Selection Pane opens with all your objects listed, and you can do any of the following:ĭrag an item up or down in the list to change the order. Format tab that appears on the ribbon when you select the object, and then choose Selection Pane (or Arrange > Selection Pane). Select one of the objects you want to manage. Once you've inserted shapes, text boxes, SmartArt graphics, images, or other objects, you can open the Selection Pane to keep track of them all. Let droppableBelow = elemBelow.closest('.Open the Selection Pane any time: On the Home tab, select Arrange > Selection Pane. potential droppables are labeled with the class "droppable" (can be other logic) if clientX/clientY are out of the window, then elementFromPoint returns null mousemove events may trigger out of the window (when the ball is dragged off-screen) Let elemBelow = document.elementFromPoint(event.clientX, event.clientY) potential droppable that we're flying over right now
There’s no way to catch an event on the blue one, because the red is on top: And mouse events only happen on the top element, not on those below it.įor instance, below are two elements, red one on top of the blue one (fully covers). The problem is that, while we’re dragging, the draggable element is always above other elements. What may be the first idea? Probably to set mouseover/mouseup handlers on potential droppables? The solution is kind-of interesting and just a little bit tricky, so let’s cover it here. and, preferably, know the droppable we’re dragging over, to highlight it.where the element was dropped at the end of Drag’n’Drop – to do the corresponding action,.Speaking abstract, we take a “draggable” element and drop it onto “droppable” element. For instance, a “file” into a “folder” or something else. In real-life we usually take one element and drop it onto another. In previous examples the ball could be dropped just “anywhere” to stay. Now it fluently follows the pointer from the current position. In the previous example the ball “jumps” under the pointer. The difference is especially noticeable if we drag the ball by its right-bottom corner. On the beginning of the drag’n’drop, the ball “forks”: we start dragging its “clone”. If we run the code, we can notice something strange. (3) drop the ball, remove unneeded handlersĭocument.removeEventListener('mousemove', onMouseMove) move our absolutely positioned ball under the pointerĭocument.addEventListener('mousemove', onMouseMove) centers the ball at (pageX, pageY) coordinatesī = pageX - ball.offsetWidth / 2 + 'px' ī = pageY - ball.offsetHeight / 2 + 'px' to make it positioned relative to the body move it out of any current parents directly into body (1) prepare to moving: make absolute and on top by z-index Here’s the implementation of dragging a ball:
Later we’ll see how to add other features, such as highlighting current underlying elements while we drag over them.
Taking something and dragging and dropping it is a clear and simple way to do many things, from copying and moving documents (as in file managers) to ordering (dropping items into a cart). Drag’n’Drop is a great interface solution.