diff options
Diffstat (limited to 'src/com/vaadin/ui/TabSheet.java')
| -rw-r--r-- | src/com/vaadin/ui/TabSheet.java | 108 |
1 files changed, 98 insertions, 10 deletions
diff --git a/src/com/vaadin/ui/TabSheet.java b/src/com/vaadin/ui/TabSheet.java index ed81fdb655..b58e7be7bf 100644 --- a/src/com/vaadin/ui/TabSheet.java +++ b/src/com/vaadin/ui/TabSheet.java @@ -35,7 +35,7 @@ public class TabSheet extends AbstractComponentContainer implements /** * Linked list of component tabs. */ - private final LinkedList components = new LinkedList(); + private final LinkedList<Component> components = new LinkedList<Component>(); /** * Map containing information related to the tabs (caption, icon etc). @@ -54,7 +54,9 @@ public class TabSheet extends AbstractComponentContainer implements */ private boolean tabsHidden; - private LinkedList paintedTabs = new LinkedList(); + private LinkedList<Component> paintedTabs = new LinkedList<Component>(); + + private CloseHandler closeHandler; /** * Constructs a new Tabsheet. Tabsheet is immediate by default. @@ -64,6 +66,11 @@ public class TabSheet extends AbstractComponentContainer implements // expand horizontally by default setWidth(100, UNITS_PERCENTAGE); setImmediate(true); + setCloseHandler(new CloseHandler() { + public void onTabClose(TabSheet tabsheet, Component c) { + tabsheet.removeComponent(c); + } + }); } /** @@ -72,7 +79,7 @@ public class TabSheet extends AbstractComponentContainer implements * * @return the Iterator of the components inside the container. */ - public Iterator getComponentIterator() { + public Iterator<Component> getComponentIterator() { return java.util.Collections.unmodifiableList(components).iterator(); } @@ -93,7 +100,7 @@ public class TabSheet extends AbstractComponentContainer implements if (components.isEmpty()) { selected = null; } else { - selected = (Component) components.getFirst(); + selected = components.getFirst(); fireSelectedTabChange(); } } @@ -168,8 +175,9 @@ public class TabSheet extends AbstractComponentContainer implements */ @Override public void moveComponentsFrom(ComponentContainer source) { - for (final Iterator i = source.getComponentIterator(); i.hasNext();) { - final Component c = (Component) i.next(); + for (final Iterator<Component> i = source.getComponentIterator(); i + .hasNext();) { + final Component c = i.next(); String caption = null; Resource icon = null; if (TabSheet.class.isAssignableFrom(source.getClass())) { @@ -199,8 +207,8 @@ public class TabSheet extends AbstractComponentContainer implements target.startTag("tabs"); - for (final Iterator i = getComponentIterator(); i.hasNext();) { - final Component component = (Component) i.next(); + for (final Iterator<Component> i = getComponentIterator(); i.hasNext();) { + final Component component = i.next(); Tab tab = tabs.get(component); /* @@ -236,6 +244,10 @@ public class TabSheet extends AbstractComponentContainer implements target.addAttribute("hidden", true); } + if (tab.isClosable()) { + target.addAttribute("closable", true); + } + final Resource icon = tab.getIcon(); if (icon != null) { target.addAttribute("icon", icon); @@ -417,6 +429,13 @@ public class TabSheet extends AbstractComponentContainer implements setSelectedTab((Component) keyMapper.get((String) variables .get("selected"))); } + if (variables.containsKey("close")) { + final Component tab = (Component) keyMapper.get((String) variables + .get("close")); + if (tab != null) { + closeHandler.onTabClose(this, tab); + } + } } /* Documented in superclass */ @@ -453,8 +472,8 @@ public class TabSheet extends AbstractComponentContainer implements int oldLocation = -1; int newLocation = -1; int location = 0; - for (final Iterator i = components.iterator(); i.hasNext();) { - final Component component = (Component) i.next(); + for (final Iterator<Component> i = components.iterator(); i.hasNext();) { + final Component component = i.next(); if (component == oldComponent) { oldLocation = location; @@ -636,6 +655,23 @@ public class TabSheet extends AbstractComponentContainer implements public void setVisible(boolean visible); /** + * Returns the closability status for the tab. + * + * @return true if the tab is allowed to be closed by the end user, + * false for not allowing closing + */ + public boolean isClosable(); + + /** + * Sets the closability status for the tab. + * + * @param visible + * true if the end user is allowed to close the tab, false + * for not allowing to close. Should default to false. + */ + public void setClosable(boolean closable); + + /** * Returns the enabled status for the tab. * * @return true for enabled, false for disabled @@ -710,6 +746,7 @@ public class TabSheet extends AbstractComponentContainer implements private Resource icon = null; private boolean enabled = true; private boolean visible = true; + private boolean closable = false; private String description = null; private ErrorMessage componentError = null; @@ -760,6 +797,19 @@ public class TabSheet extends AbstractComponentContainer implements requestRepaint(); } + public boolean isClosable() { + return closable; + } + + public void setClosable(boolean closable) { + this.closable = closable; + requestRepaint(); + } + + public void close() { + + } + public String getDescription() { return description; } @@ -777,6 +827,44 @@ public class TabSheet extends AbstractComponentContainer implements this.componentError = componentError; requestRepaint(); } + } + + /** + * CloseHandler is used to process tab closing events. Default behavior is + * to remove the tab from the TabSheet. + * + * @author Jouni Koivuviita / IT Mill Ltd. + * @since 6.2.0 + * + */ + public interface CloseHandler { + /** + * Called when a user has pressed the close icon of a tab in the client + * side widget. + * + * @param tabsheet + * the TabSheet to which the tab belongs to + * @param tabContent + * the component that corresponds to the tab whose close + * button was clicked + */ + void onTabClose(final TabSheet tabsheet, final Component tabContent); + } + + /** + * Provide a custom {@link CloseHandler} for this TabSheet if you wish to + * perform some additional tasks when a user clicks on a tabs close button, + * e.g. show a confirmation dialogue before removing the tab. + * + * To remove the tab, if you provide your own close handler, you must call + * {@link #removeComponent(Component)} yourself. + * + * The default CloseHandler for TabSheet will only remove the tab. + * + * @param handler + */ + public void setCloseHandler(CloseHandler handler) { + closeHandler = handler; } } |