Examples of com.vaadin.ui.TabSheet.replaceComponent()

com.vaadin.ui.TabSheet.replaceComponent()
Replaces a component (tab content) with another. This can be used to change tab contents or to rearrange tabs. The tab position and some metadata are preserved when moving components within the same {@link TabSheet}. If the oldComponent is not present in the tab sheet, the new one is added at the end. If the oldComponent is already in the tab sheet but the newComponent isn't, the old tab is replaced with a new one, and the caption and icon of the old one are copied to the new tab. If both old and new components are present, their positions are swapped. {@inheritDoc}

        tab2.setDescription("description");
        tab2.setEnabled(false);


        // Replace component not in tabsheet with one already in tabsheet -
        // should be no-op
        tabSheet.replaceComponent(lbl3, lbl2);
        assertEquals(2, tabSheet.getComponentCount());
        assertSame(tab1, tabSheet.getTab(lbl1));
        assertSame(tab2, tabSheet.getTab(lbl2));
        assertNull(tabSheet.getTab(lbl3));

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        assertSame(tab2, tabSheet.getTab(lbl2));
        assertNull(tabSheet.getTab(lbl3));


        // Replace component not in tabsheet with one not in tabsheet either
        // should add lbl4 as last tab
        tabSheet.replaceComponent(lbl3, lbl4);
        assertEquals(3, tabSheet.getComponentCount());
        assertSame(tab1, tabSheet.getTab(lbl1));
        assertSame(tab2, tabSheet.getTab(lbl2));
        assertEquals(2, tabSheet.getTabPosition(tabSheet.getTab(lbl4)));

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        assertEquals(2, tabSheet.getTabPosition(tabSheet.getTab(lbl4)));


        // Replace component in tabsheet with another
        // should swap places, tab association should stay the same but tabs
        // should swap metadata
        tabSheet.replaceComponent(lbl1, lbl2);
        assertSame(tab1, tabSheet.getTab(lbl1));
        assertSame(tab2, tabSheet.getTab(lbl2));
        assertEquals(false, tab1.isClosable());
        assertEquals(true, tab2.isClosable());
        assertEquals(false, tab1.isEnabled());

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        // Replace component in tabsheet with one not in tabsheet
        // should create a new tab instance for the new component, old tab
        // instance should become unattached
        // tab metadata should be copied from old to new
        tabSheet.replaceComponent(lbl1, lbl3);
        assertEquals(3, tabSheet.getComponentCount());
        assertNull(tabSheet.getTab(lbl1));
        assertNull(tab1.getComponent());
        assertNotNull(tabSheet.getTab(lbl3));
        assertEquals(false, tabSheet.getTab(lbl3).isEnabled());

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                        Component content2 = iter.next();
                        Tab tab = tabs.getTab(content2);


                        // Replace content
                        tabs.replaceComponent(tab.getComponent(), new Label(
                                "Replacement 2"));


                    }
                });
        addComponent(replace2);

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