Example usage for com.google.gwt.dom.client BrowserEvents MOUSEDOWN

List of usage examples for com.google.gwt.dom.client BrowserEvents MOUSEDOWN

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Introduction

In this page you can find the example usage for com.google.gwt.dom.client BrowserEvents MOUSEDOWN.

Prototype

String MOUSEDOWN

To view the source code for com.google.gwt.dom.client BrowserEvents MOUSEDOWN.

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Usage

From source file:com.bearsoft.gwt.ui.widgets.grid.cells.TreeExpandableCell.java

@Override
public Set<String> getConsumedEvents() {
    if (visible) {
        if (treeProvider != null) {
            Set<String> consumed = new HashSet<>();
            consumed.addAll(cell.getConsumedEvents());
            consumed.add(BrowserEvents.MOUSEDOWN);
            return consumed;
        } else {/*from   w  w w  . j ava2  s  .  c  o m*/
            return cell.getConsumedEvents();
        }
    } else {
        return null;
    }
}

From source file:com.bearsoft.gwt.ui.widgets.grid.cells.TreeExpandableCell.java

@Override
protected void onNonCellBrowserEvent(Cell.Context context, Element parent, C value, NativeEvent event,
        ValueUpdater<C> valueUpdater) {
    if (treeProvider != null) {
        if (BrowserEvents.MOUSEDOWN.equals(event.getType())) {
            T toBeToggled = treeProvider.getList().get(context.getIndex());
            treeProvider.getList().set(context.getIndex(), toBeToggled);
            if (isExpanded(context)) {
                treeProvider.collapse(toBeToggled);
            } else {
                treeProvider.expand(toBeToggled);
            }//from   w ww .j  a v  a 2  s  . co m
        } else if (cell.getConsumedEvents().contains(event.getType())) {
            cell.onBrowserEvent(context, getCellParent(parent), value, event, valueUpdater);
        }
    }
}

From source file:com.vaadin.client.widget.grid.selection.MultiSelectionRenderer.java

License:Apache License

@Override
public CheckBox createWidget() {
    final CheckBox checkBox = GWT.create(CheckBox.class);
    checkBox.setStylePrimaryName(grid.getStylePrimaryName() + SELECTION_CHECKBOX_CLASSNAME);
    CheckBoxEventHandler handler = new CheckBoxEventHandler(checkBox);

    // Sink events
    checkBox.sinkBitlessEvent(BrowserEvents.MOUSEDOWN);
    checkBox.sinkBitlessEvent(BrowserEvents.TOUCHSTART);
    checkBox.sinkBitlessEvent(BrowserEvents.CLICK);

    // Add handlers
    checkBox.addMouseDownHandler(handler);
    checkBox.addTouchStartHandler(handler);
    checkBox.addClickHandler(handler);//from   ww  w . j  a v a  2 s . c om

    return checkBox;
}

From source file:com.vaadin.client.widget.grid.selection.MultiSelectionRenderer.java

License:Apache License

@Override
public Collection<String> getConsumedEvents() {
    final HashSet<String> events = new HashSet<String>();

    /*/*from w  w  w.jav  a2 s  . co  m*/
     * this column's first interest is only to attach a NativePreventHandler
     * that does all the magic. These events are the beginning of that
     * cycle.
     */
    events.add(BrowserEvents.MOUSEDOWN);
    events.add(BrowserEvents.TOUCHSTART);

    return events;
}

From source file:com.vaadin.client.widget.grid.selection.MultiSelectionRenderer.java

License:Apache License

@Override
public boolean onBrowserEvent(final CellReference<?> cell, final NativeEvent event) {
    if (BrowserEvents.TOUCHSTART.equals(event.getType()) || (BrowserEvents.MOUSEDOWN.equals(event.getType())
            && event.getButton() == NativeEvent.BUTTON_LEFT)) {
        startDragSelect(event, Element.as(event.getEventTarget()));
        return true;
    } else {/*from  w  w  w  .  j  a  v a 2 s.  co m*/
        throw new IllegalStateException("received unexpected event: " + event.getType());
    }
}

From source file:com.vaadin.client.widgets.Grid.java

License:Apache License

/**
 * Creates a new instance./*from w w w  .jav a 2 s. c om*/
 */
public Grid() {
    initWidget(escalator);
    getElement().setTabIndex(0);
    cellFocusHandler = new CellFocusHandler();

    setStylePrimaryName(STYLE_NAME);

    escalator.getHeader().setEscalatorUpdater(createHeaderUpdater());
    escalator.getBody().setEscalatorUpdater(createBodyUpdater());
    escalator.getFooter().setEscalatorUpdater(createFooterUpdater());

    header.setGrid(this);
    HeaderRow defaultRow = header.appendRow();
    header.setDefaultRow(defaultRow);

    footer.setGrid(this);

    editor.setGrid(this);

    setSelectionMode(SelectionMode.SINGLE);

    escalator.getBody().setSpacerUpdater(gridSpacerUpdater);

    escalator.addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(ScrollEvent event) {
            fireEvent(new ScrollEvent());
        }
    });

    escalator.addRowVisibilityChangeHandler(new RowVisibilityChangeHandler() {
        @Override
        public void onRowVisibilityChange(RowVisibilityChangeEvent event) {
            if (dataSource != null && dataSource.size() != 0) {
                dataIsBeingFetched = true;
                dataSource.ensureAvailability(event.getFirstVisibleRow(), event.getVisibleRowCount());
            }
        }
    });

    // Default action on SelectionEvents. Refresh the body so changed
    // become visible.
    addSelectionHandler(new SelectionHandler<T>() {

        @Override
        public void onSelect(SelectionEvent<T> event) {
            refreshBody();
        }
    });

    // Sink header events and key events
    sinkEvents(getHeader().getConsumedEvents());
    sinkEvents(Arrays.asList(BrowserEvents.KEYDOWN, BrowserEvents.KEYUP, BrowserEvents.KEYPRESS,
            BrowserEvents.DBLCLICK, BrowserEvents.MOUSEDOWN, BrowserEvents.CLICK));

    // Make ENTER and SHIFT+ENTER in the header perform sorting
    addHeaderKeyUpHandler(new HeaderKeyUpHandler() {
        @Override
        public void onKeyUp(GridKeyUpEvent event) {
            if (event.getNativeKeyCode() != KeyCodes.KEY_ENTER) {
                return;
            }
            if (getHeader().getRow(event.getFocusedCell().getRowIndex()).isDefault()) {
                // Only sort for enter on the default header
                sorter.sort(event.getFocusedCell().getColumn(), event.isShiftKeyDown());
            }
        }
    });

    addDataAvailableHandler(new DataAvailableHandler() {
        @Override
        public void onDataAvailable(DataAvailableEvent event) {
            dataIsBeingFetched = false;
        }
    });
}

From source file:com.vaadin.client.widgets.Grid.java

License:Apache License

@Override
public void onBrowserEvent(Event event) {
    if (!isEnabled()) {
        return;/*from   w  ww. jav a2s  . c  o  m*/
    }

    String eventType = event.getType();

    if (eventType.equals(BrowserEvents.FOCUS) || eventType.equals(BrowserEvents.BLUR)) {
        super.onBrowserEvent(event);
        return;
    }

    EventTarget target = event.getEventTarget();

    if (!Element.is(target) || isOrContainsInSpacer(Element.as(target))) {
        return;
    }

    Element e = Element.as(target);
    RowContainer container = escalator.findRowContainer(e);
    Cell cell;

    if (container == null) {
        if (eventType.equals(BrowserEvents.KEYDOWN) || eventType.equals(BrowserEvents.KEYUP)
                || eventType.equals(BrowserEvents.KEYPRESS)) {
            cell = cellFocusHandler.getFocusedCell();
            container = cellFocusHandler.containerWithFocus;
        } else {
            // Click might be in an editor cell, should still map.
            if (editor.editorOverlay != null && editor.editorOverlay.isOrHasChild(e)) {
                container = escalator.getBody();
                int rowIndex = editor.getRow();
                int colIndex = editor.getElementColumn(e);

                if (colIndex < 0) {
                    // Click in editor, but not for any column.
                    return;
                }

                TableCellElement cellElement = container.getRowElement(rowIndex).getCells().getItem(colIndex);

                cell = new Cell(rowIndex, colIndex, cellElement);
            } else {
                if (escalator.getElement().isOrHasChild(e)) {
                    eventCell.set(new Cell(-1, -1, null), Section.BODY);
                    // Fire native events.
                    super.onBrowserEvent(event);
                }
                return;
            }
        }
    } else {
        cell = container.getCell(e);
        if (eventType.equals(BrowserEvents.MOUSEDOWN)) {
            cellOnPrevMouseDown = cell;
        } else if (cell == null && eventType.equals(BrowserEvents.CLICK)) {
            /*
             * Chrome has an interesting idea on click targets (see
             * cellOnPrevMouseDown javadoc). Firefox, on the other hand, has
             * the mousedown target as the click target.
             */
            cell = cellOnPrevMouseDown;
        }
    }

    assert cell != null : "received " + eventType + "-event with a null cell target";
    eventCell.set(cell, getSectionFromContainer(container));

    // Editor can steal focus from Grid and is still handled
    if (isEditorEnabled() && handleEditorEvent(event, container)) {
        return;
    }

    // Fire GridKeyEvents and GridClickEvents. Pass the event to escalator.
    super.onBrowserEvent(event);

    if (!isElementInChildWidget(e)) {

        if (handleHeaderCellDragStartEvent(event, container)) {
            return;
        }

        // Sorting through header Click / KeyUp
        if (handleHeaderDefaultRowEvent(event, container)) {
            return;
        }

        if (handleRendererEvent(event, container)) {
            return;
        }

        if (handleCellFocusEvent(event, container)) {
            return;
        }
    }
}

From source file:com.vaadin.client.widgets.Grid.java

License:Apache License

private boolean handleHeaderDefaultRowEvent(Event event, RowContainer container) {
    if (container != escalator.getHeader()) {
        return false;
    }//from  w ww .j av a2 s  .  c  o m
    if (!getHeader().getRow(eventCell.getRowIndex()).isDefault()) {
        return false;
    }
    if (!eventCell.getColumn().isSortable()) {
        // Only handle sorting events if the column is sortable
        return false;
    }

    if (BrowserEvents.MOUSEDOWN.equals(event.getType()) && event.getShiftKey()) {
        // Don't select text when shift clicking on a header.
        event.preventDefault();
    }

    if (BrowserEvents.TOUCHSTART.equals(event.getType())) {
        if (event.getTouches().length() > 1) {
            return false;
        }

        event.preventDefault();

        Touch touch = event.getChangedTouches().get(0);
        rowEventTouchStartingPoint = new Point(touch.getClientX(), touch.getClientY());

        sorter.sortAfterDelay(GridConstants.LONG_TAP_DELAY, true);

        return true;

    } else if (BrowserEvents.TOUCHMOVE.equals(event.getType())) {
        if (event.getTouches().length() > 1) {
            return false;
        }

        event.preventDefault();

        Touch touch = event.getChangedTouches().get(0);
        double diffX = Math.abs(touch.getClientX() - rowEventTouchStartingPoint.getX());
        double diffY = Math.abs(touch.getClientY() - rowEventTouchStartingPoint.getY());

        // Cancel long tap if finger strays too far from
        // starting point
        if (diffX > GridConstants.LONG_TAP_THRESHOLD || diffY > GridConstants.LONG_TAP_THRESHOLD) {
            sorter.cancelDelayedSort();
        }

        return true;

    } else if (BrowserEvents.TOUCHEND.equals(event.getType())) {
        if (event.getTouches().length() > 1) {
            return false;
        }

        if (sorter.isDelayedSortScheduled()) {
            // Not a long tap yet, perform single sort
            sorter.cancelDelayedSort();
            sorter.sort(eventCell.getColumn(), false);
        }

        return true;

    } else if (BrowserEvents.TOUCHCANCEL.equals(event.getType())) {
        if (event.getTouches().length() > 1) {
            return false;
        }

        sorter.cancelDelayedSort();

        return true;

    } else if (BrowserEvents.CLICK.equals(event.getType())) {

        sorter.sort(eventCell.getColumn(), event.getShiftKey());

        // Click events should go onward to cell focus logic
        return false;
    } else {
        return false;
    }
}

From source file:com.vaadin.v7.client.widget.grid.selection.MultiSelectionRenderer.java

License:Apache License

@Override
public CheckBox createWidget() {
    final CheckBox checkBox = GWT.create(CheckBox.class);
    checkBox.setStylePrimaryName(grid.getStylePrimaryName() + SELECTION_CHECKBOX_CLASSNAME);

    CheckBoxEventHandler handler = new CheckBoxEventHandler(checkBox);

    // Sink events
    checkBox.sinkBitlessEvent(BrowserEvents.MOUSEDOWN);
    checkBox.sinkBitlessEvent(BrowserEvents.TOUCHSTART);
    checkBox.sinkBitlessEvent(BrowserEvents.CLICK);

    // Add handlers
    checkBox.addMouseDownHandler(handler);
    checkBox.addTouchStartHandler(handler);
    checkBox.addClickHandler(handler);/*w  w  w .  j  a v  a2  s . c  o m*/
    grid.addHandler(handler, GridEnabledEvent.TYPE);

    checkBox.setEnabled(grid.isEnabled());

    return checkBox;
}

From source file:com.vaadin.v7.client.widgets.Grid.java

License:Apache License

/**
 * Creates a new instance.// w  ww  .  ja  va2 s.  com
 */
public Grid() {
    initWidget(escalator);
    getElement().setTabIndex(0);
    cellFocusHandler = new CellFocusHandler();

    setStylePrimaryName(STYLE_NAME);

    escalator.getHeader().setEscalatorUpdater(createHeaderUpdater());
    escalator.getBody().setEscalatorUpdater(createBodyUpdater());
    escalator.getFooter().setEscalatorUpdater(createFooterUpdater());

    header.setGrid(this);
    HeaderRow defaultRow = header.appendRow();
    header.setDefaultRow(defaultRow);

    footer.setGrid(this);

    editor.setGrid(this);

    setSelectionMode(SelectionMode.SINGLE);

    escalator.getBody().setSpacerUpdater(gridSpacerUpdater);

    escalator.addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(ScrollEvent event) {
            fireEvent(new ScrollEvent());
        }
    });

    escalator.addRowVisibilityChangeHandler(new RowVisibilityChangeHandler() {
        @Override
        public void onRowVisibilityChange(RowVisibilityChangeEvent event) {
            if (dataSource != null && dataSource.size() != 0) {
                dataSource.ensureAvailability(event.getFirstVisibleRow(), event.getVisibleRowCount());
            }
        }
    });

    // Default action on SelectionEvents. Refresh the body so changed
    // become visible.
    addSelectionHandler(new SelectionHandler<T>() {

        @Override
        public void onSelect(SelectionEvent<T> event) {
            refreshBody();
        }
    });

    // Sink header events and key events
    sinkEvents(getHeader().getConsumedEvents());
    sinkEvents(Arrays.asList(BrowserEvents.KEYDOWN, BrowserEvents.KEYUP, BrowserEvents.KEYPRESS,
            BrowserEvents.DBLCLICK, BrowserEvents.MOUSEDOWN, BrowserEvents.CLICK));

    // Make ENTER and SHIFT+ENTER in the header perform sorting
    addHeaderKeyUpHandler(new HeaderKeyUpHandler() {
        @Override
        public void onKeyUp(GridKeyUpEvent event) {
            if (event.getNativeKeyCode() != KeyCodes.KEY_ENTER) {
                return;
            }
            if (getHeader().getRow(event.getFocusedCell().getRowIndex()).isDefault()) {
                // Only sort for enter on the default header
                sorter.sort(event.getFocusedCell().getColumn(), event.isShiftKeyDown());
            }
        }
    });

    browserEventHandlers.addAll(Arrays.asList(
            // Opening, closing and navigating in the editor
            new EditorEventHandler(),
            // Keyboard and click handlers, Escalator events
            new SuperEventHandler(),
            // Column reordering via header drag&drop
            new HeaderCellDragStartHandler(),
            // Column sorting via header click
            new HeaderDefaultRowEventHandler(),
            // Invoking event-aware renderers
            new RendererEventHandler(),
            // Moving cell focus by keyboard or mouse
            new CellFocusEventHandler()));

}