Java Code Examples for com.google.gwt.dom.client.Document#get()

@Test
@Description("Exception occures when processing serialized data structure for preparing the drop targets to show.")
public void exceptionWhenProcessingDropTargetHintsDataStructure() {
    final ViewComponentClientCriterion cut = new ViewComponentClientCriterion();

    // prepare configuration:
    final Document document = Document.get();
    final UIDL uidl = GWT.create(UIDL.class);
    when(uidl.getIntAttribute("cda")).thenReturn(2);
    when(uidl.getStringAttribute("da0")).thenReturn("no-problem");
    when(uidl.getStringAttribute("da1")).thenReturn("problem-bear");
    doThrow(new RuntimeException()).when(uidl).getStringAttribute("da1");

    // act
    try {
        cut.showDropTargetHints(uidl);
    } catch (final RuntimeException re) {
        fail("Exception is not re-thrown in order to continue with the loop");
    }

    // assure that no-problem was invoked anyway
    verify(document).getElementById("no-problem");

    // cross-check that problem-bear was never invoked
    verify(document, Mockito.times(0)).getElementById("problem-bear");
}
 

@Test
@Description("Check multi row drag decoration with non-table widget")
public void processMultiRowDragDecorationNonTable() {
    final ViewClientCriterion cut = new ViewClientCriterion();

    // prepare drag-event with non table widget:
    final VDragAndDropWrapper nonTable = Mockito.mock(VDragAndDropWrapper.class);
    final VDragEvent dragEvent = CriterionTestHelper.createMockedVDragEvent("thisId", nonTable);
    final Document document = Document.get();

    // act
    cut.setMultiRowDragDecoration(dragEvent);

    // assure that multi-row decoration processing was skipped
    verify(document, Mockito.never()).getElementById(ViewClientCriterion.SP_DRAG_COUNT);
}
 

private static int getVerticalScrollbarWidth() {
  // We only calculate the vertical scroll bar width once, then we store it in the static field
  // verticalScrollbarWidth. If the field is non-zero, we don't need to calculate it again.
  if (verticalScrollbarWidth == 0) {
    // The following code will calculate (on the fly) the width of a vertical scroll bar.
    // We'll create two divs, one inside the other and add the outer div to the document body,
    // but off-screen where the user won't see it.
    // We'll measure the width of the inner div twice: (first) when the outer div's vertical
    // scrollbar is hidden and (second) when the outer div's vertical scrollbar is visible.
    // The width of inner div will be smaller when outer div's vertical scrollbar is visible.
    // By subtracting the two measurements, we can calculate the width of the vertical scrollbar.

    // I used code from the following websites as reference material:
    // http://jdsharp.us/jQuery/minute/calculate-scrollbar-width.php
    // http://www.fleegix.org/articles/2006-05-30-getting-the-scrollbar-width-in-pixels

    Document document = Document.get();

    // Create an outer div.
    DivElement outerDiv = document.createDivElement();
    Style outerDivStyle = outerDiv.getStyle();
    // Use absolute positioning and set the top/left so that it is off-screen.
    // We don't want the user to see anything while we do this calculation.
    outerDivStyle.setProperty("position", "absolute");
    outerDivStyle.setProperty("top", "-1000px");
    outerDivStyle.setProperty("left", "-1000px");
    // Set the width and height of the outer div to a fixed size in pixels.
    outerDivStyle.setProperty("width", "100px");
    outerDivStyle.setProperty("height", "50px");
    // Hide the outer div's scrollbar by setting the "overflow" property to "hidden".
    outerDivStyle.setProperty("overflow", "hidden");

    // Create an inner div and put it inside the outer div.
    DivElement innerDiv = document.createDivElement();
    Style innerDivStyle = innerDiv.getStyle();
    // Set the height of the inner div to be 4 times the height of the outer div so that a
    // vertical scrollbar will be necessary (but hidden for now) on the outer div.
    innerDivStyle.setProperty("height", "200px");
    outerDiv.appendChild(innerDiv);

    // Temporarily add the outer div to the document body. It's off-screen so the user won't
    // actually see anything.
    Element bodyElement = document.getElementsByTagName("body").getItem(0);
    bodyElement.appendChild(outerDiv);

    // Get the width of the inner div while the outer div's vertical scrollbar is hidden.
    int widthWithoutScrollbar = innerDiv.getOffsetWidth();
    // Show the outer div's vertical scrollbar by setting the "overflow" property to "auto".
    outerDivStyle.setProperty("overflow", "auto");
    // Now, get the width of the inner div while the vertical scrollbar is visible.
    int widthWithScrollbar = innerDiv.getOffsetWidth();

    // Remove the outer div from the document body.
    bodyElement.removeChild(outerDiv);

    // Calculate the width of the vertical scrollbar by subtracting the two widths.
    verticalScrollbarWidth = widthWithoutScrollbar - widthWithScrollbar;
  }

  return verticalScrollbarWidth;
}
 

public Element getDragCaptionElement(Widget w) {
    ComponentConnector component = Util.findConnectorFor(w);
    DDLayoutState state = ((DragAndDropAwareState) root.getState()).getDragAndDropState();
    DragCaptionInfo dci = state.dragCaptions.get(component);

    Document document = Document.get();

    Element dragCaptionImage = document.createDivElement();
    Element dragCaption = document.createSpanElement();

    String dragCaptionText = dci.caption;
    if (dragCaptionText != null) {
        if (dci.contentMode == ContentMode.TEXT) {
            dragCaption.setInnerText(dragCaptionText);
        } else if (dci.contentMode == ContentMode.HTML) {
            dragCaption.setInnerHTML(dragCaptionText);
        } else if (dci.contentMode == ContentMode.PREFORMATTED) {
            PreElement preElement = document.createPreElement();
            preElement.setInnerText(dragCaptionText);
            dragCaption.appendChild(preElement);
        }
    }

    String dragIconKey = state.dragCaptions.get(component).iconKey;
    if (dragIconKey != null) {
        String resourceUrl = root.getResourceUrl(dragIconKey);
        Icon icon = component.getConnection().getIcon(resourceUrl);
        dragCaptionImage.appendChild(icon.getElement());
    }

    dragCaptionImage.appendChild(dragCaption);

    return dragCaptionImage;
}
 

@Test
@Description("Process serialized data structure for preparing the drop targets to show.")
public void processSerializedDropTargetHintsDataStructure() {
    final ViewComponentClientCriterion cut = new ViewComponentClientCriterion();

    // prepare configuration:
    final Document document = Document.get();
    final UIDL uidl = GWT.create(UIDL.class);
    when(uidl.getIntAttribute("cda")).thenReturn(3);
    final Element[] elements = new Element[3];
    for (int i = 0; i < 3; i++) {
        when(uidl.getStringAttribute("da" + String.valueOf(i))).thenReturn("itemId" + String.valueOf(i));
        elements[i] = Mockito.mock(Element.class);
        when(document.getElementById("itemId" + String.valueOf(i))).thenReturn(elements[i]);
    }

    // act
    cut.showDropTargetHints(uidl);

    // assure invocation
    for (int i = 0; i < 3; i++) {
        verify(document).getElementById("itemId" + String.valueOf(i));
        verify(elements[i]).addClassName(ViewComponentClientCriterion.HINT_AREA_STYLE);
    }

    // cross-check
    verify(document, Mockito.times(0)).getElementById("itemId3");

}
 

@Test
@Description("Process serialized config for hiding the drop hints.")
public void processSerializedDropTargetHintsConfig() {
    final ViewClientCriterion cut = new ViewClientCriterion();

    // prepare configuration:
    final Document document = Document.get();
    final UIDL uidl = GWT.create(UIDL.class);
    when(uidl.getIntAttribute("cdac")).thenReturn(3);
    final Element[] elements = new Element[3];
    for (int i = 0; i < 3; i++) {
        when(uidl.getStringAttribute("dac" + String.valueOf(i))).thenReturn("itemId" + String.valueOf(i));
        elements[i] = Mockito.mock(Element.class);
        when(document.getElementById("itemId" + String.valueOf(i))).thenReturn(elements[i]);
    }

    // act
    try {
        cut.hideDropTargetHints(uidl);

        // assure invocation
        for (int i = 0; i < 3; i++) {
            verify(document).getElementById("itemId" + String.valueOf(i));
            verify(elements[i]).removeClassName(ViewComponentClientCriterion.HINT_AREA_STYLE);
        }

        // cross-check
        verify(document, Mockito.never()).getElementById("itemId3");

    } finally {
        reset(Document.get());
    }
}
 

@Test
@Description("Exception occures when processing serialized config for hiding the drop hints.")
public void exceptionWhenProcessingDropTargetHintsDataStructure() {
    final ViewClientCriterion cut = new ViewClientCriterion();

    // prepare configuration:
    final Document document = Document.get();
    final UIDL uidl = GWT.create(UIDL.class);
    when(uidl.getIntAttribute("cdac")).thenReturn(2);
    when(uidl.getStringAttribute("dac0")).thenReturn("no-problem");
    when(uidl.getStringAttribute("dac1")).thenReturn("problem-bear");
    doThrow(new RuntimeException()).when(uidl).getStringAttribute("dac1");

    // act
    try {
        cut.hideDropTargetHints(uidl);

        // assure that no-problem was invoked anyway
        verify(document).getElementById("no-problem");

        // cross-check that problem-bear was never invoked
        verify(document, Mockito.never()).getElementById("problem-bear");
    } catch (final RuntimeException re) {
        fail("Exception is not re-thrown in order to continue with the loop");
    } finally {
        reset(Document.get());
    }
}
 

@Test
@Description("Check multi row drag decoration with single selection")
public void processMultiRowDragDecorationSingleSelection() {
    final ViewClientCriterion cut = new ViewClientCriterion();

    // prepare table
    final VScrollTable table = Mockito.spy(new VScrollTable());
    table.selectedRowKeys.add("one");

    // prepare drag-event with table widget:
    final VDragEvent dragEvent = CriterionTestHelper.createMockedVDragEvent("thisId", table);

    // prepare document
    final Document document = Document.get();
    final Element ele = Mockito.mock(Element.class);
    when(document.getElementById(ViewClientCriterion.SP_DRAG_COUNT)).thenReturn(ele);

    try {
        // act
        cut.setMultiRowDragDecoration(dragEvent);

        // assure that multi-row decoration for the table was processed
        verify(document).getElementById(ViewClientCriterion.SP_DRAG_COUNT);

        // assure that no multi selection was detected
        verify(ele).removeFromParent();
    } finally {
        reset(Document.get());
    }
}
 

@Test
@Description("Check multi row drag decoration with a single item dragged while a multi selection is active in table")
public void processMultiRowDragDecorationMultiSelectionNotDragged() {
    final ViewClientCriterion cut = new ViewClientCriterion();

    // prepare table
    final VScrollTable table = Mockito.spy(new VScrollTable());
    table.selectedRowKeys.add("one");
    table.selectedRowKeys.add("two");
    table.focusedRow = Mockito.mock(VScrollTable.VScrollTableBody.VScrollTableRow.class);
    when(table.focusedRow.getKey()).thenReturn("another");

    // prepare drag-event with table widget:
    final VDragEvent dragEvent = CriterionTestHelper.createMockedVDragEvent("thisId", table);

    // prepare document
    final Document document = Document.get();
    final Element ele = Mockito.mock(Element.class);
    when(document.getElementById(ViewClientCriterion.SP_DRAG_COUNT)).thenReturn(ele);

    try {
        // act
        cut.setMultiRowDragDecoration(dragEvent);

        // assure that multi-row decoration for the table was processed
        verify(document).getElementById(ViewClientCriterion.SP_DRAG_COUNT);

        // assure that no multi selection was detected
        verify(ele).removeFromParent();
    } finally {
        reset(Document.get());
    }
}
 

@Test
@Description("Check multi row drag decoration with a valid multi selection")
public void processMultiRowDragDecorationMultiSelection() {
    final ViewClientCriterion cut = new ViewClientCriterion();

    // prepare table
    final VScrollTable table = Mockito.spy(new VScrollTable());
    table.selectedRowKeys.add("one");
    table.selectedRowKeys.add("two");
    table.focusedRow = Mockito.mock(VScrollTable.VScrollTableBody.VScrollTableRow.class);
    when(table.focusedRow.getKey()).thenReturn("one");

    // prepare drag-event with table widget:
    final VDragEvent dragEvent = CriterionTestHelper.createMockedVDragEvent("thisId", table, "myTheme");
    dragEvent.getTransferable().getDragSource().getConnection().getUIConnector();

    // prepare document
    final Document document = Document.get();
    final StyleElement ele = Mockito.spy(StyleElement.class);
    when(ele.getTagName()).thenReturn(StyleElement.TAG);
    when(document.getElementById(ViewClientCriterion.SP_DRAG_COUNT)).thenReturn(ele);

    try {
        // act
        cut.setMultiRowDragDecoration(dragEvent);

        // assure that multi-row decoration for the table was processed
        verify(document).getElementById(ViewClientCriterion.SP_DRAG_COUNT);

        // assure that no multi selection was detected
        verify(ele).setInnerSafeHtml(any(SafeHtml.class));
    } finally {
        reset(Document.get());
    }
}
 

@Override
public void onAttachOrDetach(AttachEvent event) {
	Document doc = Document.get();
	if (event.isAttached()) {
		fromTitle = doc.getTitle();
		doc.setTitle(title);
	} else {
		doc.setTitle(fromTitle);
	}
}
 

private void initGA() {
	Document doc = Document.get();
	ScriptElement script = doc.createScriptElement();
	script.setSrc("https://ssl.google-analytics.com/ga.js");
	script.setType("text/javascript");
	script.setLang("javascript");
	doc.getBody().appendChild(script);
}
 

public static void setBrowserWindowTitle(String newTitle) {
	if (Document.get() != null) {
		Document.get().setTitle(newTitle);
	}
}