--- /dev/null
- sinkEvents(Event.TOUCHEVENTS | Event.MOUSEEVENTS);
+/*
+@VaadinApache2LicenseForJavaFiles@
+ */
+package com.vaadin.terminal.gwt.client.ui.accordion;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.user.client.DOM;
+import com.google.gwt.user.client.Element;
+import com.google.gwt.user.client.Event;
+import com.google.gwt.user.client.ui.ComplexPanel;
+import com.google.gwt.user.client.ui.Widget;
+import com.vaadin.terminal.gwt.client.ComponentConnector;
+import com.vaadin.terminal.gwt.client.ConnectorMap;
+import com.vaadin.terminal.gwt.client.UIDL;
+import com.vaadin.terminal.gwt.client.Util;
+import com.vaadin.terminal.gwt.client.VCaption;
+import com.vaadin.terminal.gwt.client.ui.TouchScrollDelegate;
+import com.vaadin.terminal.gwt.client.ui.TouchScrollDelegate.TouchScrollHandler;
+import com.vaadin.terminal.gwt.client.ui.tabsheet.TabsheetBaseConnector;
+import com.vaadin.terminal.gwt.client.ui.tabsheet.VTabsheetBase;
+
+public class VAccordion extends VTabsheetBase {
+
+ public static final String CLASSNAME = "v-accordion";
+
+ private Set<Widget> widgets = new HashSet<Widget>();
+
+ HashMap<StackItem, UIDL> lazyUpdateMap = new HashMap<StackItem, UIDL>();
+
+ StackItem openTab = null;
+
+ int selectedUIDLItemIndex = -1;
+
+ private final TouchScrollHandler touchScrollHandler;
+
+ public VAccordion() {
+ super(CLASSNAME);
+ touchScrollHandler = TouchScrollDelegate.enableTouchScrolling(this);
+ }
+
+ @Override
+ protected void renderTab(UIDL tabUidl, int index, boolean selected,
+ boolean hidden) {
+ StackItem item;
+ int itemIndex;
+ if (getWidgetCount() <= index) {
+ // Create stackItem and render caption
+ item = new StackItem(tabUidl);
+ if (getWidgetCount() == 0) {
+ item.addStyleDependentName("first");
+ }
+ itemIndex = getWidgetCount();
+ add(item, getElement());
+ } else {
+ item = getStackItem(index);
+ item = moveStackItemIfNeeded(item, index, tabUidl);
+ itemIndex = index;
+ }
+ item.updateCaption(tabUidl);
+
+ item.setVisible(!hidden);
+
+ if (selected) {
+ selectedUIDLItemIndex = itemIndex;
+ }
+
+ if (tabUidl.getChildCount() > 0) {
+ lazyUpdateMap.put(item, tabUidl.getChildUIDL(0));
+ }
+ }
+
+ /**
+ * This method tries to find out if a tab has been rendered with a different
+ * index previously. If this is the case it re-orders the children so the
+ * same StackItem is used for rendering this time. E.g. if the first tab has
+ * been removed all tabs which contain cached content must be moved 1 step
+ * up to preserve the cached content.
+ *
+ * @param item
+ * @param newIndex
+ * @param tabUidl
+ * @return
+ */
+ private StackItem moveStackItemIfNeeded(StackItem item, int newIndex,
+ UIDL tabUidl) {
+ UIDL tabContentUIDL = null;
+ ComponentConnector tabContent = null;
+ if (tabUidl.getChildCount() > 0) {
+ tabContentUIDL = tabUidl.getChildUIDL(0);
+ tabContent = client.getPaintable(tabContentUIDL);
+ }
+
+ Widget itemWidget = item.getComponent();
+ if (tabContent != null) {
+ if (tabContent != itemWidget) {
+ /*
+ * This is not the same widget as before, find out if it has
+ * been moved
+ */
+ int oldIndex = -1;
+ StackItem oldItem = null;
+ for (int i = 0; i < getWidgetCount(); i++) {
+ Widget w = getWidget(i);
+ oldItem = (StackItem) w;
+ if (tabContent == oldItem.getComponent()) {
+ oldIndex = i;
+ break;
+ }
+ }
+
+ if (oldIndex != -1 && oldIndex > newIndex) {
+ /*
+ * The tab has previously been rendered in another position
+ * so we must move the cached content to correct position.
+ * We move only items with oldIndex > newIndex to prevent
+ * moving items already rendered in this update. If for
+ * instance tabs 1,2,3 are removed and added as 3,2,1 we
+ * cannot re-use "1" when we get to the third tab.
+ */
+ insert(oldItem, getElement(), newIndex, true);
+ return oldItem;
+ }
+ }
+ } else {
+ // Tab which has never been loaded. Must assure we use an empty
+ // StackItem
+ Widget oldWidget = item.getComponent();
+ if (oldWidget != null) {
+ oldWidget.removeFromParent();
+ }
+ }
+ return item;
+ }
+
+ void open(int itemIndex) {
+ StackItem item = (StackItem) getWidget(itemIndex);
+ boolean alreadyOpen = false;
+ if (openTab != null) {
+ if (openTab.isOpen()) {
+ if (openTab == item) {
+ alreadyOpen = true;
+ } else {
+ openTab.close();
+ }
+ }
+ }
+ if (!alreadyOpen) {
+ item.open();
+ activeTabIndex = itemIndex;
+ openTab = item;
+ }
+
+ // Update the size for the open tab
+ updateOpenTabSize();
+ }
+
+ void close(StackItem item) {
+ if (!item.isOpen()) {
+ return;
+ }
+
+ item.close();
+ activeTabIndex = -1;
+ openTab = null;
+
+ }
+
+ @Override
+ protected void selectTab(final int index, final UIDL contentUidl) {
+ StackItem item = getStackItem(index);
+ if (index != activeTabIndex) {
+ open(index);
+ iLayout();
+ // TODO Check if this is needed
+ client.runDescendentsLayout(this);
+
+ }
+ item.setContent(contentUidl);
+ }
+
+ public void onSelectTab(StackItem item) {
+ final int index = getWidgetIndex(item);
+ if (index != activeTabIndex && !disabled && !readonly
+ && !disabledTabKeys.contains(tabKeys.get(index))) {
+ addStyleDependentName("loading");
+ client.updateVariable(id, "selected", "" + tabKeys.get(index), true);
+ }
+ }
+
+ /**
+ * Sets the size of the open tab
+ */
+ void updateOpenTabSize() {
+ if (openTab == null) {
+ return;
+ }
+
+ // WIDTH
+ if (!isDynamicWidth()) {
+ openTab.setWidth("100%");
+ } else {
+ openTab.setWidth(null);
+ }
+
+ // HEIGHT
+ if (!isDynamicHeight()) {
+ int usedPixels = 0;
+ for (Widget w : getChildren()) {
+ StackItem item = (StackItem) w;
+ if (item == openTab) {
+ usedPixels += item.getCaptionHeight();
+ } else {
+ // This includes the captionNode borders
+ usedPixels += item.getHeight();
+ }
+ }
+
+ int offsetHeight = getOffsetHeight();
+
+ int spaceForOpenItem = offsetHeight - usedPixels;
+
+ if (spaceForOpenItem < 0) {
+ spaceForOpenItem = 0;
+ }
+
+ openTab.setHeight(spaceForOpenItem);
+ } else {
+ openTab.setHeightFromWidget();
+
+ }
+
+ }
+
+ public void iLayout() {
+ if (openTab == null) {
+ return;
+ }
+
+ if (isDynamicWidth()) {
+ int maxWidth = 40;
+ for (Widget w : getChildren()) {
+ StackItem si = (StackItem) w;
+ int captionWidth = si.getCaptionWidth();
+ if (captionWidth > maxWidth) {
+ maxWidth = captionWidth;
+ }
+ }
+ int widgetWidth = openTab.getWidgetWidth();
+ if (widgetWidth > maxWidth) {
+ maxWidth = widgetWidth;
+ }
+ super.setWidth(maxWidth + "px");
+ openTab.setWidth(maxWidth);
+ }
+ }
+
+ /**
+ * A StackItem has always two children, Child 0 is a VCaption, Child 1 is
+ * the actual child widget.
+ */
+ protected class StackItem extends ComplexPanel implements ClickHandler {
+
+ public void setHeight(int height) {
+ if (height == -1) {
+ super.setHeight("");
+ DOM.setStyleAttribute(content, "height", "0px");
+ } else {
+ super.setHeight((height + getCaptionHeight()) + "px");
+ DOM.setStyleAttribute(content, "height", height + "px");
+ DOM.setStyleAttribute(content, "top", getCaptionHeight() + "px");
+
+ }
+ }
+
+ public Widget getComponent() {
+ if (getWidgetCount() < 2) {
+ return null;
+ }
+ return getWidget(1);
+ }
+
+ @Override
+ public void setVisible(boolean visible) {
+ super.setVisible(visible);
+ }
+
+ public void setHeightFromWidget() {
+ Widget widget = getChildWidget();
+ if (widget == null) {
+ return;
+ }
+
+ int paintableHeight = widget.getElement().getOffsetHeight();
+ setHeight(paintableHeight);
+
+ }
+
+ /**
+ * Returns caption width including padding
+ *
+ * @return
+ */
+ public int getCaptionWidth() {
+ if (caption == null) {
+ return 0;
+ }
+
+ int captionWidth = caption.getRequiredWidth();
+ int padding = Util.measureHorizontalPaddingAndBorder(
+ caption.getElement(), 18);
+ return captionWidth + padding;
+ }
+
+ public void setWidth(int width) {
+ if (width == -1) {
+ super.setWidth("");
+ } else {
+ super.setWidth(width + "px");
+ }
+ }
+
+ public int getHeight() {
+ return getOffsetHeight();
+ }
+
+ public int getCaptionHeight() {
+ return captionNode.getOffsetHeight();
+ }
+
+ private VCaption caption;
+ private boolean open = false;
+ private Element content = DOM.createDiv();
+ private Element captionNode = DOM.createDiv();
+
+ public StackItem(UIDL tabUidl) {
+ setElement(DOM.createDiv());
+ caption = new VCaption(client);
+ caption.addClickHandler(this);
+ super.add(caption, captionNode);
+ DOM.appendChild(captionNode, caption.getElement());
+ DOM.appendChild(getElement(), captionNode);
+ DOM.appendChild(getElement(), content);
+
+ getElement().addClassName(CLASSNAME + "-item");
+ captionNode.addClassName(CLASSNAME + "-item-caption");
+ content.addClassName(CLASSNAME + "-item-content");
+
+ touchScrollHandler.addElement(getContainerElement());
+
++ sinkEvents(Event.MOUSEEVENTS);
+
+ close();
+ }
+
+ @Override
+ public void onBrowserEvent(Event event) {
+ onSelectTab(this);
+ }
+
+ public Element getContainerElement() {
+ return content;
+ }
+
+ public Widget getChildWidget() {
+ if (getWidgetCount() > 1) {
+ return getWidget(1);
+ } else {
+ return null;
+ }
+ }
+
+ public void replaceWidget(Widget newWidget) {
+ if (getWidgetCount() > 1) {
+ Widget oldWidget = getWidget(1);
+ ComponentConnector oldPaintable = ConnectorMap.get(client)
+ .getConnector(oldWidget);
+ ConnectorMap.get(client).unregisterConnector(oldPaintable);
+ widgets.remove(oldWidget);
+ remove(1);
+ }
+ add(newWidget, content);
+ widgets.add(newWidget);
+ }
+
+ public void open() {
+ open = true;
+ DOM.setStyleAttribute(content, "top", getCaptionHeight() + "px");
+ DOM.setStyleAttribute(content, "left", "0px");
+ DOM.setStyleAttribute(content, "visibility", "");
+ addStyleDependentName("open");
+ }
+
+ public void hide() {
+ DOM.setStyleAttribute(content, "visibility", "hidden");
+ }
+
+ public void close() {
+ DOM.setStyleAttribute(content, "visibility", "hidden");
+ DOM.setStyleAttribute(content, "top", "-100000px");
+ DOM.setStyleAttribute(content, "left", "-100000px");
+ removeStyleDependentName("open");
+ setHeight(-1);
+ setWidth("");
+ open = false;
+ }
+
+ public boolean isOpen() {
+ return open;
+ }
+
+ public void setContent(UIDL contentUidl) {
+ final ComponentConnector newPntbl = client
+ .getPaintable(contentUidl);
+ Widget newWidget = newPntbl.getWidget();
+ if (getChildWidget() == null) {
+ add(newWidget, content);
+ widgets.add(newWidget);
+ } else if (getChildWidget() != newWidget) {
+ replaceWidget(newWidget);
+ }
+ if (contentUidl.getBooleanAttribute("cached")) {
+ /*
+ * The size of a cached, relative sized component must be
+ * updated to report correct size.
+ */
+ client.handleComponentRelativeSize(newPntbl.getWidget());
+ }
+ if (isOpen() && isDynamicHeight()) {
+ setHeightFromWidget();
+ }
+ }
+
+ @Override
+ public void onClick(ClickEvent event) {
+ onSelectTab(this);
+ }
+
+ public void updateCaption(UIDL uidl) {
+ // TODO need to call this because the caption does not have an owner
+ caption.updateCaptionWithoutOwner(
+ uidl.getStringAttribute(TabsheetBaseConnector.ATTRIBUTE_TAB_CAPTION),
+ uidl.hasAttribute(TabsheetBaseConnector.ATTRIBUTE_TAB_DISABLED),
+ uidl.hasAttribute(TabsheetBaseConnector.ATTRIBUTE_TAB_DESCRIPTION),
+ uidl.hasAttribute(TabsheetBaseConnector.ATTRIBUTE_TAB_ERROR_MESSAGE),
+ uidl.getStringAttribute(TabsheetBaseConnector.ATTRIBUTE_TAB_ICON));
+ }
+
+ public int getWidgetWidth() {
+ return DOM.getFirstChild(content).getOffsetWidth();
+ }
+
+ public boolean contains(ComponentConnector p) {
+ return (getChildWidget() == p.getWidget());
+ }
+
+ public boolean isCaptionVisible() {
+ return caption.isVisible();
+ }
+
+ }
+
+ @Override
+ protected void clearPaintables() {
+ clear();
+ }
+
+ boolean isDynamicWidth() {
+ ComponentConnector paintable = ConnectorMap.get(client).getConnector(
+ this);
+ return paintable.isUndefinedWidth();
+ }
+
+ boolean isDynamicHeight() {
+ ComponentConnector paintable = ConnectorMap.get(client).getConnector(
+ this);
+ return paintable.isUndefinedHeight();
+ }
+
+ @Override
+ @SuppressWarnings("unchecked")
+ protected Iterator<Widget> getWidgetIterator() {
+ return widgets.iterator();
+ }
+
+ @Override
+ protected int getTabCount() {
+ return getWidgetCount();
+ }
+
+ @Override
+ protected void removeTab(int index) {
+ StackItem item = getStackItem(index);
+ remove(item);
+ touchScrollHandler.removeElement(item.getContainerElement());
+ }
+
+ @Override
+ protected ComponentConnector getTab(int index) {
+ if (index < getWidgetCount()) {
+ Widget w = getStackItem(index);
+ return ConnectorMap.get(client).getConnector(w);
+ }
+
+ return null;
+ }
+
+ StackItem getStackItem(int index) {
+ return (StackItem) getWidget(index);
+ }
+
+}
projects / vaadin-framework.git / commitdiff