Example usage for com.google.gwt.user.client.ui Widget isAttached

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui Widget isAttached.

Prototype

@Override
public boolean isAttached() 

Source Link

Document

Determines whether this widget is currently attached to the browser's document (i.e., there is an unbroken chain of widgets between this widget and the underlying browser document).

Usage

From source file:cc.alcina.framework.gwt.client.util.WidgetUtils.java

License:Apache License

public static void resizeUsingInfo(int containerHeight, int containerWidth, Iterator<Widget> widgets,
        int parentAdjustHeight, int parentAdjustWidth) {
    while (widgets.hasNext()) {
        Widget widget = widgets.next();//from   w w  w .java  2  s. co m
        if (widget == null || !widget.isVisible()) {
            continue;
        }
        int availableHeight = containerHeight;
        int availableWidth = containerWidth;
        if (widget instanceof HasLayoutInfo) {
            String name = widget.getClass().getName();
            if (debug) {
                GWT.log(CommonUtils.formatJ("%s: ", CommonUtils.simpleClassName(widget.getClass())), null);
            }
            LayoutInfo info = ((HasLayoutInfo) widget).getLayoutInfo();
            info.beforeLayout();
            if (info.to100percentOfAvailableHeight() || info.to100percentOfAvailableWidth()) {
                int usedHeight = 0;
                int usedWidth = 0;
                Widget parent = widget.getParent();
                Iterator<Widget> childIterator = null;
                availableHeight = info.useBestOffsetForParentHeight()
                        ? getBestOffsetHeight(parent.getElement(), true)
                        : containerHeight;
                availableHeight = Math.min(availableHeight, containerHeight);
                availableWidth = info.useBestOffsetForParentWidth()
                        ? getBestOffsetWidth(parent.getElement(), true)
                        : containerWidth;
                availableWidth = Math.min(availableWidth, containerWidth);
                if (parent instanceof HasLayoutInfo) {
                    childIterator = ((HasLayoutInfo) parent).getLayoutInfo().getLayoutWidgets();
                } else if (parent instanceof HasWidgets) {
                    childIterator = ((HasWidgets) parent).iterator();
                }
                boolean ignoreChildrenForHeight = info.to100percentOfAvailableHeight()
                        && (isDirectionalLayoutPanel(parent, true) || info.ignoreSiblingsForHeight());
                boolean ignoreChildrenForWidth = info.to100percentOfAvailableWidth()
                        && (isDirectionalLayoutPanel(parent, false) || info.ignoreSiblingsForWidth());
                if (childIterator != null) {
                    while (childIterator.hasNext()) {
                        Widget cw = childIterator.next();
                        if (cw != widget && WidgetUtils.isVisibleWithOffsetParent(cw.getElement())
                                && cw.isAttached()) {
                            if (!ignoreChildrenForHeight) {
                                usedHeight += getBestOffsetHeight(cw.getElement(), true, false);
                            }
                            if (!ignoreChildrenForWidth) {
                                usedWidth += getBestOffsetWidth(cw.getElement());
                            }
                        }
                    }
                }
                if (info.to100percentOfAvailableHeight()) {
                    availableHeight = availableHeight - usedHeight - parentAdjustHeight
                            - info.getAdjustHeight();
                    if (debug) {
                        GWT.log(CommonUtils.formatJ("%s: %s - comp %s",
                                CommonUtils.simpleClassName(widget.getClass()), availableHeight,
                                containerHeight), null);
                    }
                    if (availableHeight >= 0) {
                        widget.setHeight((availableHeight) + "px");
                    }
                }
                if (info.to100percentOfAvailableWidth()) {
                    availableWidth = availableWidth - usedWidth - parentAdjustWidth - info.getAdjustWidth();
                    if (availableWidth >= 0) {
                        widget.setWidth((availableWidth) + "px");
                    }
                }
            }
            Iterator<Widget> toResize = info.getWidgetsToResize();
            while (toResize.hasNext()) {
                toResize.next().setHeight(containerHeight + "px");
            }
            resizeUsingInfo(availableHeight, availableWidth, info.getLayoutWidgets(),
                    info.getClientAdjustHeight(), info.getClientAdjustWidth());
            info.afterLayout();
        } // haslayoutinfo
        else if (widget instanceof HasWidgets) {
            resizeUsingInfo(availableHeight, availableWidth, ((HasWidgets) widget).iterator(), 0, 0);
        }
    } // while
}

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From source file:cc.kune.common.client.tooltip.Tooltip.java

License:GNU Affero Public License

public void show(final Widget forWidget, final String text) {
    if (current != null && !current.equals(forWidget) && getTip().isShowing()) {
        Tooltip.getTip().hide();//  www .j av  a  2  s.c om
    }
    setText(text);
    if (forWidget.isAttached() && forWidget.isVisible()
            && (TextUtils.notEmpty(text) && !"undefined".equals(text))) {
        Tooltip.super.show();
        current = forWidget;
        final int clientWidth = Window.getClientWidth();
        if (mainPanel.getOffsetWidth() >= clientWidth) {
            mainPanel.getElement().getStyle().setWidth(clientWidth - 20, Unit.PX);
        } else if (mainPanel.getOffsetWidth() > 430) {
            mainPanel.getElement().getStyle().setWidth(430, Unit.PX);
        } else {
            mainPanel.getElement().getStyle().clearWidth();
        }
        showAt(forWidget);
    }
}

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From source file:cc.kune.core.client.dnd.AbstractDropController.java

License:GNU Affero Public License

@Override
public void init(final Widget dropTarget) {
    dropController = new SimpleDropController(dropTarget) {

        @Override/*from  w w w .  j a  v  a2s .  co  m*/
        public void onDrop(final DragContext context) {
            boolean droppedSomething = false;
            super.onDrop(context);
            for (final Widget widget : context.selectedWidgets) {
                if (acceptedTypes.contains(widget.getClass())) {
                    onDropAllowed(widget, this);
                    droppedSomething = true;
                }
            }
            if (droppedSomething) {
                onGroupDropFinished(this);
            }
        }

        @Override
        public void onEnter(final DragContext context) {
            super.onEnter(context);
            for (final Widget widget : context.selectedWidgets) {
                if (acceptedTypes.contains(widget.getClass())) {
                    onEnterAllowed(this);
                }
            }
        }

        @Override
        public void onLeave(final DragContext context) {
            super.onLeave(context);
            for (final Widget widget : context.selectedWidgets) {
                if (acceptedTypes.contains(widget.getClass())) {
                    onLeaveAllowed(this);
                }
            }
        }

        @Override
        public void onPreviewDrop(final DragContext context) throws VetoDragException {
            for (final Widget widget : context.selectedWidgets) {
                if (acceptedTypes.contains(widget.getClass())) {
                    onPreviewAllowed(widget, this);
                } else {
                    throw new VetoDragException();
                }
            }
            super.onPreviewDrop(context);
        }
    };

    dropTarget.addStyleName("k-drop-allowed");

    if (dropTarget.isAttached()) {
        dragController.registerDropController(dropController);
    }

    dropTarget.addAttachHandler(new Handler() {
        @Override
        public void onAttachOrDetach(final AttachEvent event) {
            if (!event.isAttached()) {
                dragController.unregisterDropController(dropController);
            } else {
                dragController.registerDropController(dropController);
            }
        }
    });
}

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From source file:co.fxl.gui.gwt.GWTElement.java

License:Open Source License

@SuppressWarnings("unchecked")
protected R focus(final boolean focus, Widget widget) {
    if (widget.isVisible() && widget.isAttached()) {
        Focusable focusable = (Focusable) widget;
        focusable.setFocus(focus);/* w  w w. j a  v a 2s.co  m*/
        notifyFocusListeners(focus);
    }
    return (R) this;
}

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From source file:com.cgxlib.xq.client.plugins.widgets.WidgetsUtils.java

License:Apache License

private static void replaceWidget(Widget oldWidget, Widget newWidget, boolean remove) {
    Widget parent = oldWidget.getParent();
    boolean removed = false;
    // TODO: handle tables
    if (parent instanceof HTMLPanel) {
        ((HTMLPanel) parent).addAndReplaceElement(newWidget, (Element) oldWidget.getElement());
        if (!remove) {
            $(newWidget).before($(oldWidget));
        }//from w  w w .  ja  v a 2  s.  c  o m
        removed = true;
    } else if (parent instanceof ComplexPanel) {
        ((ComplexPanel) parent).add(newWidget);
    } else if (parent instanceof SimplePanel) {
        ((SimplePanel) parent).setWidget(newWidget);
    } else if (parent instanceof Panel) {
        ((Panel) parent).add(newWidget);
    } else {
        assert false : "Can not replace an attached widget whose parent is a " + parent.getClass().getName();
    }
    if (remove && !removed && oldWidget.isAttached()) {
        oldWidget.removeFromParent();
    } else {
        oldWidget.setVisible(false);
    }
}

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From source file:com.epam.feel.client.ui.util.gwtupload.FixedSingleUploader.java

License:Apache License

/**
 * This constructor allows to use an existing form panel.
 * /*from w w  w. j  a va2s .  co m*/
 * @param type
 *            file input to use
 * @param status
 *            Customized status widget to use
 * @param submitButton
 *            Customized button which submits the form
 * @param form
 *            Customized form panel
 */
public FixedSingleUploader(FileInputType type, IUploadStatus status, Widget submitButton, FormPanel form) {
    super(type, form);

    final FixedUploader thisInstance = this;

    if (status == null) {
        status = new BaseUploadStatus();
        super.add(status.getWidget());
    }
    super.setStatusWidget(status);

    this.button = submitButton;
    if (submitButton != null) {
        submitButton.addStyleName("submit");
        if (submitButton instanceof HasClickHandlers) {
            ((HasClickHandlers) submitButton).addClickHandler(new ClickHandler() {
                public void onClick(ClickEvent event) {
                    thisInstance.submit();
                }
            });
        }
        if (submitButton instanceof HasText) {
            ((HasText) submitButton).setText(I18N_CONSTANTS.uploaderSend());
        }
        // The user could have attached the button anywhere in the page.
        if (!submitButton.isAttached()) {
            super.add(submitButton);
        }
    }
}

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From source file:com.ephesoft.gxt.rv.client.view.batch.DLFView.java

License:Open Source License

@Override
public void focus() {
    if (widget instanceof Widget) {
        final Widget inputWidget = (Widget) (widget);
        if (inputWidget.isAttached()) {
            setFocus();//from   www  . j  a va  2s. c o m
        } else {
            Timer timer = new Timer() {

                @Override
                public void run() {
                    if (inputWidget.isAttached()) {
                        cancel();
                        setFocus();
                    }
                }

            };
            timer.scheduleRepeating(20);
        }
    }
}

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From source file:com.extjs.gxt.ui.client.widget.ComponentHelper.java

License:sencha.com license

public static void doAttach(Widget widget) {
    if (widget != null && !widget.isAttached()) {
        doAttachNative(widget);// w  ww .j  a  v  a  2s.c  om
    }
}

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From source file:com.extjs.gxt.ui.client.widget.ComponentHelper.java

License:sencha.com license

public static void doDetach(Widget widget) {
    if (widget != null && widget.isAttached()) {
        doDetachNative(widget);/*from  w  ww. j a  v  a2  s . c o m*/
    }
}

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From source file:com.gwtext.client.widgets.map.Marker.java

License:Open Source License

/**
 * Sets the info bubble to be a Widget. Only supported by GoogleMaps. For other map providers use
 * {@link #setInfoBubble(String)}./*w w  w  .  j  a v a 2 s.  co  m*/
 *
 * @param widget the widget to add to the info bubble.
 */
public void setInfoBubble(Widget widget) {
    if (widget instanceof Component) {
        Component component = (Component) widget;
        if (!component.isRendered()) {
            WidgetComponent.createHiddenDiv();
            component.render(WidgetComponent.hiddenDivID);
        }
    } else {
        if (!widget.isAttached()) {
            WidgetComponent.createHiddenDiv();
            RootPanel.get(WidgetComponent.hiddenDivID).add(widget);
        }
    }
    setInfoBubble(widget.getElement());
}

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