Examples with EventTarget org.gwtproject.dom.client.EventTarget used on opensource projects

Example 1 with EventTarget

use of org.gwtproject.dom.client.EventTarget in project gwtproject by treblereel.

the class CompositeCell method onBrowserEvent.

@Override
public void onBrowserEvent(org.gwtproject.cell.client.Cell.Context context, Element parent, C value, NativeEvent event, org.gwtproject.cell.client.ValueUpdater<C> valueUpdater) {
    int index = 0;
    EventTarget eventTarget = event.getEventTarget();
    if (Element.is(eventTarget)) {
        Element target = eventTarget.cast();
        Element container = getContainerElement(parent);
        Element wrapper = container.getFirstChildElement();
        while (wrapper != null) {
            if (wrapper.isOrHasChild(target)) {
                onBrowserEventImpl(context, wrapper, value, event, valueUpdater, hasCells.get(index));
            }
            index++;
            wrapper = wrapper.getNextSiblingElement();
        }
    }
}

Example 2 with EventTarget

use of org.gwtproject.dom.client.EventTarget in project gwtproject by treblereel.

the class AbstractUiRenderer method computeDispatchEvent.

/**
 * Obtains the index of the method that will receive an event.
 *
 * @param table event types and field names indexed by the method that can handle an event.
 * @param root of a previously rendered DOM structure
 * @param event event to handle
 * @return index of the method that will process the event or NO_HANDLER_FOUND.
 */
private static int computeDispatchEvent(HashMap<String, Integer> table, Element root, NativeEvent event) {
    String uiId = root.getAttribute(RENDERED_ATTRIBUTE);
    EventTarget eventTarget = event.getEventTarget();
    if (!Element.is(eventTarget)) {
        return NO_HANDLER_FOUND;
    }
    Element cursor = Element.as(eventTarget);
    while (cursor != null && cursor != root && cursor.getNodeType() != Element.DOCUMENT_NODE) {
        String fieldName = getFieldName(uiId, cursor);
        if (fieldName == null) {
            cursor = cursor.getParentElement();
            continue;
        }
        String key = event.getType() + UI_ID_SEPARATOR + fieldName;
        if (table.containsKey(key)) {
            return table.get(key);
        }
        cursor = cursor.getParentElement();
    }
    if (cursor == root) {
        String key = event.getType() + UI_ID_SEPARATOR + ROOT_FAKE_NAME;
        if (table.containsKey(key)) {
            return table.get(key);
        }
    }
    return NO_HANDLER_FOUND;
}

Example 3 with EventTarget

use of org.gwtproject.dom.client.EventTarget in project gwtproject by treblereel.

the class AbstractHasData method onBrowserEvent.

/**
 * Handle browser events. Subclasses should override {@link #onBrowserEvent2(Event)} if they want
 * to extend browser event handling.
 *
 * @see #onBrowserEvent2(Event)
 */
@Override
public final void onBrowserEvent(Event event) {
    CellBasedWidgetImpl.get().onBrowserEvent(this, event);
    // Ignore spurious events (such as onblur) while we refresh the table.
    if (isRefreshing) {
        return;
    }
    // Verify that the target is still a child of this widget. IE fires focus
    // events even after the element has been removed from the DOM.
    EventTarget eventTarget = event.getEventTarget();
    if (!Element.is(eventTarget)) {
        return;
    }
    Element target = Element.as(eventTarget);
    if (!getElement().isOrHasChild(Element.as(eventTarget))) {
        return;
    }
    super.onBrowserEvent(event);
    String eventType = event.getType();
    if (BrowserEvents.FOCUS.equals(eventType)) {
        // Remember the focus state.
        isFocused = true;
        onFocus();
    } else if (BrowserEvents.BLUR.equals(eventType)) {
        // Remember the blur state.
        isFocused = false;
        onBlur();
    } else if (BrowserEvents.KEYDOWN.equals(eventType)) {
        // A key event indicates that we already have focus.
        isFocused = true;
    } else if (BrowserEvents.MOUSEDOWN.equals(eventType) && CellBasedWidgetImpl.get().isFocusable(Element.as(target))) {
        // If a natively focusable element was just clicked, then we must have
        // focus.
        isFocused = true;
    }
    // Let subclasses handle the event now.
    onBrowserEvent2(event);
}

Example 4 with EventTarget

use of org.gwtproject.dom.client.EventTarget in project gwtproject by treblereel.

the class CellList method onBrowserEvent2.

@Override
protected void onBrowserEvent2(Event event) {
    // Get the event target.
    EventTarget eventTarget = event.getEventTarget();
    if (!Element.is(eventTarget)) {
        return;
    }
    final Element target = event.getEventTarget().cast();
    // Forward the event to the cell.
    String idxString = "";
    Element cellTarget = target;
    while ((cellTarget != null) && ((idxString = cellTarget.getAttribute("__idx")).length() == 0)) {
        cellTarget = cellTarget.getParentElement();
    }
    if (idxString.length() > 0) {
        // Select the item if the cell does not consume events. Selection occurs
        // before firing the event to the cell in case the cell operates on the
        // currently selected item.
        String eventType = event.getType();
        boolean isClick = BrowserEvents.CLICK.equals(eventType);
        int idx = Integer.parseInt(idxString);
        int indexOnPage = idx - getPageStart();
        if (!isRowWithinBounds(indexOnPage)) {
            // If the event causes us to page, then the index will be out of bounds.
            return;
        }
        // Get the cell parent before doing selection in case the list is redrawn.
        boolean isSelectionHandled = cell.handlesSelection() || HasKeyboardSelectionPolicy.KeyboardSelectionPolicy.BOUND_TO_SELECTION == getKeyboardSelectionPolicy();
        Element cellParent = getCellParent(cellTarget);
        T value = getVisibleItem(indexOnPage);
        Context context = new Context(idx, 0, getValueKey(value));
        CellPreviewEvent<T> previewEvent = CellPreviewEvent.fire(this, event, this, context, value, cellIsEditing, isSelectionHandled);
        // Fire the event to the cell if the list has not been refreshed.
        if (!previewEvent.isCanceled()) {
            fireEventToCell(context, event, cellParent, value);
        }
    }
}

Example 5 with EventTarget

use of org.gwtproject.dom.client.EventTarget in project gwtproject by treblereel.

the class ImageLoadingCell method eventOccurredOnImage.

/**
 * Check whether or not an event occurred within the wrapper around the image element.
 *
 * @param event the event
 * @param parent the parent element
 * @return true if the event targets the image
 */
private boolean eventOccurredOnImage(NativeEvent event, Element parent) {
    EventTarget eventTarget = event.getEventTarget();
    if (!Element.is(eventTarget)) {
        return false;
    }
    Element target = eventTarget.cast();
    // Make sure the target occurred within the div around the image.
    Element imgWrapper = parent.getFirstChildElement().getNextSiblingElement();
    return imgWrapper.isOrHasChild(target);
}