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com.vaadin.client.ui.

Class VTabsheet

  • All Implemented Interfaces:

    com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.HasEnabled, com.google.gwt.user.client.ui.HasVisibility, com.google.gwt.user.client.ui.HasWidgets, com.google.gwt.user.client.ui.HasWidgets.ForIsWidget, com.google.gwt.user.client.ui.IndexedPanel, com.google.gwt.user.client.ui.IndexedPanel.ForIsWidget, com.google.gwt.user.client.ui.IsWidget, Focusable, SubPartAware, Iterable<com.google.gwt.user.client.ui.Widget>

    public class VTabsheet
extends VTabsheetBase
implements Focusable, SubPartAware

    Widget class for the TabSheet component. Displays one child item's contents at a time.

    Author:

    Vaadin Ltd

    • Nested Class Summary

      Nested Classes
      Modifier and Type Class Description
      class  VTabsheet.PlaceHolder

      Deprecated.

      as of 7.1, VTabsheet only keeps the active tab in the DOM without any place holders.
      static class  VTabsheet.Tab

      Representation of a single "tab" shown in the VTabsheet.TabBar.
      static class  VTabsheet.TabCaption

      Caption implementation for a VTabsheet.Tab.

      • Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

        com.google.gwt.user.client.ui.UIObject.DebugIdImpl, com.google.gwt.user.client.ui.UIObject.DebugIdImplEnabled

      • Nested classes/interfaces inherited from interface com.google.gwt.user.client.ui.HasWidgets

        com.google.gwt.user.client.ui.HasWidgets.ForIsWidget

      • Nested classes/interfaces inherited from interface com.google.gwt.user.client.ui.IndexedPanel

        com.google.gwt.user.client.ui.IndexedPanel.ForIsWidget

    • Constructor Summary

      Constructors
      Constructor Description
      VTabsheet()

      Constructs a widget for a TabSheet component.

    • Method Summary

      All Methods
      Modifier and Type Method Description
      void blur()

      Deprecated.

      This method is not called by the framework code anymore.
      protected void clearPaintables()

      Deprecated.

      This method is not called by the framework code anymore.
      void focus()

      Sets focus to this widget.
      ApplicationConnection getApplicationConnection()

      Deprecated.

      since 7.2 - use more specific methods instead (getRpcProxy(), getConnectorForWidget(Widget) etc.)
      protected int getCloseTabKey()

      Returns the key code of the keyboard shortcut that closes the currently focused tab (if closable) in a focused tabsheet.
      int getContentAreaBorderWidth()

      For internal use only.
      com.google.gwt.user.client.ui.Widget getCurrentlyDisplayedWidget()

      Returns the currently displayed widget in the tab panel.
      protected int getNextTabKey()

      Returns the key code of the keyboard shortcut that focuses the next tab in a focused tabsheet.
      protected int getPreviousTabKey()

      Returns the key code of the keyboard shortcut that focuses the previous tab in a focused tabsheet.
      protected TabsheetServerRpc getRpcProxy()

      Returns the client to server RPC proxy for the tabsheet.
      protected int getSelectTabKey()

      Gets the key to select the focused tab when navigating using previous/next (left/right) keys.
      com.google.gwt.user.client.Element getSubPartElement​(String subPart)

      Locates an element inside a component using the identifier provided in subPart.
      String getSubPartName​(com.google.gwt.user.client.Element subElement)

      Provides an identifier that identifies the element within the component.
      ComponentConnector getTab​(int index)

      Implement in extending classes.
      int getTabCount()

      Implement in extending classes.
      Iterator<com.google.gwt.user.client.ui.Widget> getWidgetIterator()  
      void handleStyleNames​(AbstractComponentState state)

      For internal use only.
      void hideTabs()

      Makes tab bar invisible.
      void iLayout()

      Run internal layouting.
      boolean loadTabSheet​(int tabIndex)

      Begin loading of the content of a tab of the provided index.
      void onBrowserEvent​(com.google.gwt.user.client.Event event)  
      void removeTab​(int index)

      Implement in extending classes.
      void renderContent​(com.google.gwt.user.client.ui.Widget newWidget)

      Renders the widget content for a tab sheet.
      void renderTab​(TabState tabState, int index)

      Implement in extending classes.
      void selectTab​(int index)

      For internal use only.
      void setConnector​(AbstractComponentConnector connector)

      Sets the connector that should be notified of events etc.
      void setTabIndex​(int tabIndex)

      For internal use only.
      void showAllTabs()

      For internal use only.
      void showTabs()

      Makes tab bar visible.
      void tabSizeMightHaveChanged​(VTabsheet.Tab tab)

      This should be triggered from an onload event within the given tab's caption to signal that icon contents have finished loading.
      void updateContentNodeHeight()

      For internal use only.
      void updateDynamicWidth()

      For internal use only.
      void updateOpenTabSize()

      Sets the size of the visible tab content (component).

      • Methods inherited from class com.google.gwt.user.client.ui.ComplexPanel

        add, add, adjustIndex, checkIndexBoundsForAccess, checkIndexBoundsForInsertion, getChildren, getWidget, getWidgetCount, getWidgetIndex, getWidgetIndex, insert, insert, iterator, remove, remove

      • Methods inherited from class com.google.gwt.user.client.ui.Panel

        add, add, adopt, clear, doAttachChildren, doDetachChildren, orphan, remove

      • Methods inherited from class com.google.gwt.user.client.ui.Widget

        addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, fireEvent, getHandlerCount, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onDetach, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

      • Methods inherited from class com.google.gwt.user.client.ui.UIObject

        addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString

    • Field Detail

      • TABS_CLASSNAME

        public static final String TABS_CLASSNAME

        Default classname for the element that contains tab bar and scroller.

        See Also:

        Constant Field Values

      • SCROLLER_CLASSNAME

        public static final String SCROLLER_CLASSNAME

        Default classname for the scroller element.

        See Also:

        Constant Field Values

      • tabs

        public final com.google.gwt.dom.client.Element tabs

        For internal use only. May be removed or replaced in the future.

        Container element for tab bar and 'scroller'.

      • tabPanel

        protected final VTabsheetPanel tabPanel

        For internal use only. May be removed or replaced in the future.

        The content panel that contains the widget of the content component that has been assigned to the selected tab. There should be at most one tab's content widget added to the panel at the same time.

      • contentNode

        public final com.google.gwt.dom.client.Element contentNode

        For internal use only. May be removed or replaced in the future.

        The content wrapper element around the content panel.

      • waitingForResponse

        public boolean waitingForResponse

        For internal use only. May be removed or replaced in the future.

        true if waiting for a server roundtrip to return after requesting selection change, false otherwise

    • Constructor Detail

      • VTabsheet

        public VTabsheet()

        Constructs a widget for a TabSheet component.

    • Method Detail

      • setTabIndex

        public void setTabIndex​(int tabIndex)

        For internal use only. May be renamed or removed in a future release.

        Sets the tabulator index for the active tab of the tab sheet. The active tab represents the entire tab sheet in the browser's focus cycle (excluding any focusable elements within the content panel).

        This value is delegated from the TabsheetState.

        Parameters:

        tabIndex - tabulator index for the active tab of the tab sheet

        Since:

        8.1.7

      • loadTabSheet

        public boolean loadTabSheet​(int tabIndex)

        Begin loading of the content of a tab of the provided index. The actual content widget will only be available later, after a server round-trip confirms the selection and switches to send the required child connector. If the tab in the given index is already active, nothing is done.

        Parameters:

        tabIndex - The index of the tab to load

        Returns:

        true if loading of the specified sheet gets successfully initialized, false otherwise.

      • getCurrentlyDisplayedWidget

        public com.google.gwt.user.client.ui.Widget getCurrentlyDisplayedWidget()

        Returns the currently displayed widget in the tab panel.

        Returns:

        currently displayed content widget

        Since:

        7.2

      • getRpcProxy

        protected TabsheetServerRpc getRpcProxy()

        Returns the client to server RPC proxy for the tabsheet.

        Returns:

        RPC proxy

        Since:

        7.2

      • getApplicationConnection

        @Deprecated
public ApplicationConnection getApplicationConnection()
        Deprecated.
        since 7.2 - use more specific methods instead (getRpcProxy(), getConnectorForWidget(Widget) etc.)

        For internal use only. Avoid using this method directly and use appropriate superclass methods where applicable.

        Returns:

        ApplicationConnection

      • tabSizeMightHaveChanged

        public void tabSizeMightHaveChanged​(VTabsheet.Tab tab)

        This should be triggered from an onload event within the given tab's caption to signal that icon contents have finished loading. The contents may have changed the tab's width. This might in turn require changes in the scroller (hidden tabs might need to be scrolled back into view), or even the width of the entire tab sheet if it has been configured to be dynamic.

        Parameters:

        tab - the tab whose size may have changed

      • onBrowserEvent

        public void onBrowserEvent​(com.google.gwt.user.client.Event event)

        Specified by:

        onBrowserEvent in interface com.google.gwt.user.client.EventListener

        Overrides:

        onBrowserEvent in class com.google.gwt.user.client.ui.Widget

      • handleStyleNames

        public void handleStyleNames​(AbstractComponentState state)

        For internal use only. May be removed or replaced in the future.

        Parameters:

        state - the state object for this component

      • updateDynamicWidth

        public void updateDynamicWidth()

        For internal use only. May be removed or replaced in the future.

        See Also:

        VTabsheetBase.isDynamicWidth()

      • renderTab

        public void renderTab​(TabState tabState,
                      int index)

        Description copied from class: VTabsheetBase

        Implement in extending classes. This method should render needed elements and set the visibility of the tab according to the 'visible' parameter. This method should not update the selection, the connector should handle that separately.

        Specified by:

        renderTab in class VTabsheetBase

        Parameters:

        tabState - shared state of a single tab

        index - the index of that tab

      • renderContent

        public void renderContent​(com.google.gwt.user.client.ui.Widget newWidget)

        Renders the widget content for a tab sheet.

        Parameters:

        newWidget - the content widget or null if there is none

      • updateContentNodeHeight

        public void updateContentNodeHeight()

        For internal use only. May be removed or replaced in the future.

      • iLayout

        public void iLayout()

        Run internal layouting.

      • updateOpenTabSize

        public void updateOpenTabSize()

        Sets the size of the visible tab content (component). As the tab is set to position: absolute (to work around a firefox flickering bug) we must keep this up-to-date by hand.

        For internal use only. May be removed or replaced in the future.

      • showAllTabs

        public void showAllTabs()

        For internal use only. May be removed or replaced in the future.

      • clearPaintables

        @Deprecated
protected void clearPaintables()
        Deprecated.
        This method is not called by the framework code anymore.

        Clears current tabs and contents.

        Specified by:

        clearPaintables in class VTabsheetBase

      • getWidgetIterator

        public Iterator<com.google.gwt.user.client.ui.Widget> getWidgetIterator()

        Specified by:

        getWidgetIterator in class VTabsheetBase

        Returns:

        a list of currently shown Widgets

      • getContentAreaBorderWidth

        public int getContentAreaBorderWidth()

        For internal use only. May be removed or replaced in the future.

        Returns:

        the horizontal width consumed by borders of the content area

      • getTabCount

        public int getTabCount()

        Description copied from class: VTabsheetBase

        Implement in extending classes. This method should return the number of tabs currently rendered.

        Specified by:

        getTabCount in class VTabsheetBase

        Returns:

        the number of currently rendered tabs

      • getTab

        public ComponentConnector getTab​(int index)

        Description copied from class: VTabsheetBase

        Implement in extending classes. This method should return the connector corresponding to the given index.

        Specified by:

        getTab in class VTabsheetBase

        Parameters:

        index - the index of the tab whose connector to find

        Returns:

        the connector of the queried tab, or null if not found

      • removeTab

        public void removeTab​(int index)

        Description copied from class: VTabsheetBase

        Implement in extending classes. This method should remove the rendered tab with the specified index.

        Specified by:

        removeTab in class VTabsheetBase

        Parameters:

        index - the index of the tab to remove

      • selectTab

        public void selectTab​(int index)

        Description copied from class: VTabsheetBase

        For internal use only. May be removed or replaced in the future.

        Specified by:

        selectTab in class VTabsheetBase

        Parameters:

        index - the index of the tab to select

      • focus

        public void focus()

        Description copied from interface: Focusable

        Sets focus to this widget.

        Specified by:

        focus in interface Focusable

      • blur

        @Deprecated
public void blur()
        Deprecated.
        This method is not called by the framework code anymore.

        Removes focus from the active tab.

      • setConnector

        public void setConnector​(AbstractComponentConnector connector)

        Description copied from class: VTabsheetBase

        Sets the connector that should be notified of events etc. For internal use only. This method may be removed or replaced in the future.

        Overrides:

        setConnector in class VTabsheetBase

        Parameters:

        connector - the connector of this widget

      • getPreviousTabKey

        protected int getPreviousTabKey()

        Returns the key code of the keyboard shortcut that focuses the previous tab in a focused tabsheet.

        Returns:

        the key to move focus to the previous tab

      • getSelectTabKey

        protected int getSelectTabKey()

        Gets the key to select the focused tab when navigating using previous/next (left/right) keys.

        Returns:

        the key to select the focused tab.

        See Also:

        getNextTabKey(), getPreviousTabKey()

      • getNextTabKey

        protected int getNextTabKey()

        Returns the key code of the keyboard shortcut that focuses the next tab in a focused tabsheet.

        Returns:

        the key to move focus to the next tab

      • getCloseTabKey

        protected int getCloseTabKey()

        Returns the key code of the keyboard shortcut that closes the currently focused tab (if closable) in a focused tabsheet.

        Returns:

        the key to close the current tab

      • showTabs

        public void showTabs()

        Makes tab bar visible.

        Since:

        7.2

      • hideTabs

        public void hideTabs()

        Makes tab bar invisible.

        Since:

        7.2

      • getSubPartElement

        public com.google.gwt.user.client.Element getSubPartElement​(String subPart)

        Description copied from interface: SubPartAware

        Locates an element inside a component using the identifier provided in subPart. The subPart identifier is component specific and may be any string of characters, numbers, space characters and brackets.

        Specified by:

        getSubPartElement in interface SubPartAware

        Parameters:

        subPart - The identifier for the element inside the component

        Returns:

        The element identified by subPart or null if the element could not be found.

      • getSubPartName

        public String getSubPartName​(com.google.gwt.user.client.Element subElement)

        Description copied from interface: SubPartAware

        Provides an identifier that identifies the element within the component. The subElement is a part of the component and must never be null.

        Note! getSubPartElement(getSubPartName(element)) == element is not always true. A component can choose to provide a more generic identifier for any given element if the results of all interactions with subElement are the same as interactions with the element identified by the return value. For example a button can return an identifier for the root element even though a DIV inside the button was passed as subElement because interactions with the DIV and the root button element produce the same result.

        Specified by:

        getSubPartName in interface SubPartAware

        Parameters:

        subElement - The element the identifier string should uniquely identify

        Returns:

        An identifier that uniquely identifies subElement or null if no identifier could be provided.