Package org.zkoss.zul

Class Listbox.ExtraCtrl

    • Constructor Detail

      • ExtraCtrl

        protected ExtraCtrl()
    • Method Detail

      • getHeight

        public int getHeight()
        Description copied from interface: Padding
        Returns the padding height in px.
        Specified by:
        getHeight in interface Padding
        Returns:
        the padding height in px.
      • setHeight

        public void setHeight​(int height)
        Description copied from interface: Padding
        Set the padding height in px.
        Specified by:
        setHeight in interface Padding
        Parameters:
        height - the padding height in px.
      • isCropper

        public boolean isCropper()
        Description copied from interface: Cropper
        Returns whether it is a cropper, i.e., cropping is applied.

        Note: this method is called when an child is detached, so you have to count one more for the total number of children. Example <= must be used, not <:
        getChildCount() <= getPageSize()

        The result of returning false is the same as not declaring with Cropper.

        Specified by:
        isCropper in interface Cropper
      • getCropOwner

        public Component getCropOwner()
        Description copied from interface: Cropper
        Returns the owner of the cropping scope. In most cases, Cropper.getAvailableAtClient() returns only the available direct children of this component, and this method returns this component. It is so-called a single-level cropping, such as listbox and tree.

        If you want to implement multi-level cropping, such as tree, you can consider the whole tree as a cropping scope. And, Cropper.getAvailableAtClient() returns all available items, not just the child of this component. In additions, this method returns the tree.

        Specified by:
        getCropOwner in interface Cropper
      • getAvailableAtClient

        public java.util.Set<? extends Component> getAvailableAtClient()
        Description copied from interface: Cropper
        Returns a set of child components that are available at the client, or null if ALL available. The child components in the returned set must be in the same order of Component.getChildren(). In order words, you must use LinkedHashSet or similar to ensure the order in the returned set.

        Note: for better performance, it is better to return null if all children are available at the client.

        Note: the components in the returned set can have different parents. It is useful if you want to implement multi-level cropping, such as tree. Refer to Cropper.getCropOwner().

        Specified by:
        getAvailableAtClient in interface Cropper
      • shallBlock

        public boolean shallBlock​(AuRequest request)
        Description copied from interface: Blockable
        Return true if the request shall be blocked.
        Specified by:
        shallBlock in interface Blockable