Java Code Examples for com.google.gwt.user.client.Window#getScrollTop()

public static Rectangle visiblePart(Element ctx, Rectangle rect) {
  while (true) {
    if (ctx.getOffsetParent() == null) {
      Rectangle visibleArea = new Rectangle(Window.getScrollLeft(), Window.getScrollTop(), Window.getClientWidth(), Window.getClientHeight());
      return visibleArea.intersect(rect);
    } else {
      Rectangle visible;
      if (hasScroller(ctx)) {
        visible = new Rectangle(0, 0, ctx.getClientWidth(), ctx.getClientHeight());
        Vector scroll = new Vector(ctx.getScrollLeft(), ctx.getScrollTop());
        rect = rect.sub(scroll);
      } else {
        visible = new Rectangle(0, 0, ctx.getScrollWidth(), ctx.getScrollHeight());
      }

      Rectangle newRect = visible.intersect(rect);
      Vector offset = new Vector(ctx.getOffsetLeft(), ctx.getOffsetTop());

      ctx = ctx.getOffsetParent();
      rect = newRect.add(offset);
    }
  }
}
 

public void resetPosistion() {
	if (!this.isVisible()) {
		return;
	}
	int scrollTop = Window.getScrollTop();
	int docHeigth = Document.get().getScrollHeight();

	this.getElement().getStyle().clearHeight();
	this.offsetHeight = this.getElement().getClientHeight();

	int top = this.pinnedOffset - scrollTop - this.offsetTop;
	int bottom = docHeigth - scrollTop - this.offsetBottom - this.offsetTop - this.offsetHeight;
	if (bottom <= 0 || this.fixBottom != Integer.MIN_VALUE) {
		this.toggleAffix(Affixed.BOTTOM);
	} else if (top >= 0) {
		this.toggleAffix(Affixed.TOP);
	} else {
		this.toggleAffix(Affixed.AFFIX);
	}
}
 

private void position(final UIObject relativeObject, int offsetWidth, int offsetHeight) {
	int textBoxOffsetWidth = relativeObject.getOffsetWidth();
	int offsetWidthDiff = offsetWidth - textBoxOffsetWidth;
	int left = relativeObject.getAbsoluteLeft();
	if (offsetWidthDiff > 0) {
		int windowRight = Window.getClientWidth() + Window.getScrollLeft();
		int windowLeft = Window.getScrollLeft();
		int distanceToWindowRight = windowRight - left;
		int distanceFromWindowLeft = left - windowLeft;
		if (distanceToWindowRight < offsetWidth && distanceFromWindowLeft >= offsetWidthDiff) {
			left -= offsetWidthDiff;
		}
	}
	int top = relativeObject.getAbsoluteTop();
	int windowTop = Window.getScrollTop();
	int windowBottom = Window.getScrollTop() + Window.getClientHeight();
	int distanceFromWindowTop = top - windowTop;
	int distanceToWindowBottom = windowBottom - (top + relativeObject.getOffsetHeight());
	if (distanceToWindowBottom < offsetHeight && distanceFromWindowTop >= offsetHeight) {
		top -= offsetHeight;
	} else {
		top += relativeObject.getOffsetHeight();
	}
	setPopupPosition(left, top);
}
 

@Override
protected void onAttach(MappingContext ctx) {
  super.onAttach(ctx);
  getSource().setCellContainerPeer(createCellContainerPeer());

  disablePopup(getTarget());
  getTarget().setTabIndex(0);
  getTarget().addClassName(CSS.rootContainer());

  getTarget().appendChild(myLineHighlight1);
  getTarget().appendChild(myLineHighlight2);
  getTarget().appendChild(myContent);

  refreshLineHighlight();

  myScrollLeft = Window.getScrollLeft();
  myScrollTop = Window.getScrollTop();

  myWindowReg = Window.addWindowScrollHandler(new Window.ScrollHandler() {
    @Override
    public void onWindowScroll(Window.ScrollEvent event) {
      myScrollLeft = event.getScrollLeft();
      myScrollTop = event.getScrollTop();
    }
  });
}
 

private MouseEvent toMouseEvent(Event e) {
  int cx = e.getClientX();
  int cy = e.getClientY();

  int scrollLeft = Window.getScrollLeft();
  int scrollTop = Window.getScrollTop();

  int absoluteLeft = myRootDiv.getAbsoluteLeft();
  int absoluteTop = myRootDiv.getAbsoluteTop();

  int elScrollTop = myRootDiv.getScrollTop();
  int elScrollLeft = myRootDiv.getScrollLeft();

  int x = cx + scrollLeft - absoluteLeft + elScrollLeft;
  int y = cy + scrollTop - absoluteTop + elScrollTop;

  return new MouseEvent(x, y);
}
 

protected void setPopupPosition(SuggestPopup popup) {
    int[] cursorPos = widget.getCursorCoords();
    int scrollLeft = Window.getScrollLeft();
    int scrollTop = Window.getScrollTop();
    int leftPos = cursorPos[0] - scrollLeft;
    int topPos = cursorPos[1] - scrollTop + CURSOR_LINE_HEIGHT;
    popup.setPopupPosition(leftPos, topPos);
}
 

public void show() {
	UniTimePageLabel.getInstance().setPageName(iAttribute.getId() == null ? MESSAGES.pageAddInstructorAttribute() : MESSAGES.pageEditInstructorAttribute());
	setVisible(true);
	iLastScrollLeft = Window.getScrollLeft();
	iLastScrollTop = Window.getScrollTop();
	onShow();
	Window.scrollTo(0, 0);
}
 

@Override
public void showContextMenu(Event event) {
    if (_delegate.contextMenuEnabled && enabled && (_delegate.customContextMenu != null || actionKeys != null)) {
        // Show context menu if there are registered action handlers
        int left = WidgetUtil.getTouchOrMouseClientX(event)
                + Window.getScrollLeft();
        int top = WidgetUtil.getTouchOrMouseClientY(event)
                + Window.getScrollTop();

        selectRowForContextMenuActions(event);

        showContextMenu(left, top);
    }
}
 

/**
 * Create a offset position base on the event's client X, Y. The return offset
 * position is relative to the Document body coordinate.
 *
 * @param event
 */
public OffsetPosition(Event event) {
  // convert the event's client coordinate system, which is client area base, to the
  // body position coordinate system.

  this.left = event.getClientX() + Window.getScrollLeft() - Document.get().getBodyOffsetLeft();
  this.top = event.getClientY() + Window.getScrollTop() - Document.get().getBodyOffsetTop();

  this.offsetParent = null;
}
 

public void show() {
	UniTimePageLabel.getInstance().setPageName(MESSAGES.pageEditRoomsDepartments());
	setVisible(true);
	iLastScrollLeft = Window.getScrollLeft();
	iLastScrollTop = Window.getScrollTop();
	onShow();
	Window.scrollTo(0, 0);
}
 

public static void __search() {
	final int left = Window.getScrollLeft();
	final int top = Window.getScrollTop();
	SolutionReportsPage page = (SolutionReportsPage)RootPanel.get("UniTimeGWT:Body").getWidget(0);
	page.init(new AsyncCallback<Boolean>() {
		@Override
		public void onFailure(Throwable caught) {
		}
		@Override
		public void onSuccess(Boolean result) {
			if (result)
				Window.scrollTo(left, top);
		}
	});
}
 

protected void toggleAffix(Affixed affix) {
	Element e = this.getElement();
	Style style = e.getStyle();

	if (this.affixed != affix) {
		this.clearElementStyle();
		this.affixed = affix;
		StyleUtils.addStyle(e, this.affixed);
	}

	switch (affix) {
		case AFFIX:
			style.setTop(this.offsetTop, Unit.PX);
			style.setWidth(this.offsetWidth, Unit.PX);
			style.setHeight(this.offsetHeight, Unit.PX);
			style.setZIndex(this.layerIndex);
			e.getParentElement().getStyle().setPaddingTop(this.offsetHeight, Unit.PX);
			break;
		case BOTTOM:
			int docHeigth = Document.get().getScrollHeight();
			int scrollTop = Window.getScrollTop();

			int bottom = this.offsetBottom - (docHeigth - scrollTop - this.clientHeigth);
			if (this.fixBottom != Integer.MIN_VALUE) {
				bottom = Math.max(bottom, this.fixBottom);
			}
			style.setPosition(Position.FIXED);
			style.setBottom(bottom, Unit.PX);
			style.setWidth(this.offsetWidth, Unit.PX);
			style.setHeight(this.offsetHeight, Unit.PX);
			style.setZIndex(this.layerIndex);
			break;
		default:
			break;
	}
}
 

public static void __search() {
	final int left = Window.getScrollLeft();
	final int top = Window.getScrollTop();
	NotAssignedClassesPage page = (NotAssignedClassesPage)RootPanel.get("UniTimeGWT:Body").getWidget(0);
	page.search(new AsyncCallback<Boolean>() {
		@Override
		public void onFailure(Throwable caught) {
		}
		@Override
		public void onSuccess(Boolean result) {
			if (result)
				Window.scrollTo(left, top);
		}
	});
}
 

public void show() {
	UniTimePageLabel.getInstance().setPageName(iEvent.getId() == null ? MESSAGES.pageAddEvent() : MESSAGES.pageEditEvent());
	setVisible(true);
	iLastScrollLeft = Window.getScrollLeft();
	iLastScrollTop = Window.getScrollTop();
	onShow();
	Window.scrollTo(0, 0);
	if (iForm.getRowFormatter().isVisible(iSessionRow)) {
		iSession.setFilter(this);
		iForm.setWidget(iSessionRow, 1, iSession);
	}
	iFileUpload.check();
}
 

public static void __search() {
	final int left = Window.getScrollLeft();
	final int top = Window.getScrollTop();
	AssignmentHistoryPage page = (AssignmentHistoryPage)RootPanel.get("UniTimeGWT:Body").getWidget(0);
	page.search(new AsyncCallback<Boolean>() {
		@Override
		public void onFailure(Throwable caught) {
		}
		@Override
		public void onSuccess(Boolean result) {
			if (result)
				Window.scrollTo(left, top);
		}
	});
}
 

private int getDesiredTopPosition() {
	return toInt32(WidgetUtil.getBoundingClientRect(VComboBoxMultiselect.this.tb.getElement())
		.getBottom()) + Window.getScrollTop();
}
 

@Override
public void onBrowserEvent(Event event) {
	if (Event.ONMOUSEMOVE == DOM.eventGetType(event) && !iSelection.isActive() && iMoving != null) {
		iMoving.onBrowserEvent(event);
		if (iMoving.iCursor != null)
			getElement().getStyle().setCursor(iMoving.iCursor);
		return;
	}

	double x = event.getClientX() - getAbsoluteLeft() + Window.getScrollLeft();
	double y = event.getClientY() - getAbsoluteTop() + Window.getScrollTop();

	int slot = 3 * Math.min(Math.max(0, (int)Math.round(4 * (y - 1 + iStart * iCellHeight) / iCellHeight)), 96);
	int day = Math.min(Math.max(0, (int)Math.floor((x - 2) / iCellWidth)), iDays.length - 1);
	int weeks = (isSingleRoom() ? iSelectedWeeks.size() : iRoomResources.size());
	int week = Math.min(Math.max(0, (int)Math.floor(weeks * (x - 2 - iCellWidth * day) / (iCellWidth - 6))), weeks - 1);
	if (iRTL) {
		day = iDays.length - day - 1;
		week = weeks - week - 1;
	}
	int dayOfWeek = iDays[day];
	int h = slot / 12;
	int m = 5 * (slot % 12);
	String time = (CONSTANTS.useAmPm() ? (h == 0 ? "12": h <= 12 ? h : h-12) : h) + ":" + (m < 10 ? "0" : "") + m + (CONSTANTS.useAmPm() ? (h <= 11 ? "a" : "p") : "");
	
	int dayInv = (iDayOfWeeks == null ? (7 + dayOfWeek - iPropertiesProvider.getFirstDayOfWeek()) % 7 : dayOfWeek);
	String text = (iDayOfWeeks == null ? CONSTANTS.longDays()[dayOfWeek] : iDayOfWeeks.get(dayOfWeek)) + " " + (isSingleRoom() ? iSelectedWeeks.get(week) : iSelectedWeeks.get(0)).getDayNames().get(dayInv) +
			" " + time + (isSingleRoom() ? "" : " " + iRoomResources.get(week).getName());
	ResourceInterface room = (isSingleRoom() ? iRoomResources.get(0) : iRoomResources.get(week));
	iPopup.setPopupPosition(event.getClientX() + Window.getScrollLeft(), event.getClientY() + Window.getScrollTop());
	
	getElement().getStyle().setCursor(Cursor.CROSSHAIR);
	
	switch (DOM.eventGetType(event)) {
	case Event.ONMOUSEDOWN:
		iSelection.setStart(dayOfWeek, slot, week);
		iSelection.setEnd(dayOfWeek, slot, week);
		iSelection.setVisible(true);
		iSelection.setActive(true);
		break;
	case Event.ONMOUSEMOVE:
		iSelection.setEnd(dayOfWeek, slot, week);
		if (!iPopup.isShowing()) iPopup.show();
		if (!room.getId().equals(iLastRoomId)) {
			RoomHint.showHint(iPopup.getElement(), room.getId(), "", (room.hasDistance() ? String.valueOf(Math.round(room.getDistance())) : ""), false);
			iLastRoomId = room.getId();
		}
		break;
	case Event.ONMOUSEUP:
		onMouseUp();
		break;
	case Event.ONMOUSEOVER:
		if (!iPopup.isShowing() && (iSelection.isActive() || iMoving == null)) iPopup.show();
		if (iSelection.isActive() && !iSelection.isVisible()) {
			iSelection.setVisible(true);					
		}
		if (!room.getId().equals(iLastRoomId)) {
			RoomHint.showHint(iPopup.getElement(), room.getId(), "", (room.hasDistance() ? String.valueOf(Math.round(room.getDistance())) : ""), false);
			iLastRoomId = room.getId();
		}
		break;
	case Event.ONMOUSEOUT:
		Element child = DOM.eventGetToElement(event);
		if (child != null && !getElement().isOrHasChild(child)) {
			if (iPopup.isShowing()) {
				iPopup.hide();
				RoomHint.hideHint(); iLastRoomId = null;
			}
			iSelection.setVisible(false);
		}
		/*
		if (iSelection.isActive() && !DOM.isOrHasChild(TimeGrid.this.getElement(), DOM.eventGetToElement(event))) {
			iSelection.setActive(false);
		}
		*/
		break;
	}
	
	iHint.setText((iSelection.isVisible() && iSelection.isActive() ? iSelection.toString() : text));
	
	event.preventDefault();
	event.stopPropagation();
}
 

private void update() {
  Rectangle newRect = new Rectangle(Window.getScrollLeft() - myRootDiv.getAbsoluteLeft(), Window.getScrollTop() - myRootDiv.getAbsoluteTop(), Window.getClientWidth(), Window.getClientHeight());
  if (myVisibleArea.get() != null && myVisibleArea.get().contains(newRect)) return;
  myVisibleArea.set(expand(newRect));
}
 

/**
 * @param offsetWidth width of the ContextMenu being positioned on the parent element
 * @param offsetHeight height of the ContextMenu being positioned on the parent element
 * Sets the position of the ContextMenu on the screen given it's dimensions
 */
@Override
public void setPosition(int offsetWidth, int offsetHeight) {

  // getAbsoluteLeft/Right() gives the top coordinate of the parent element
  // getOffsetWidth/Height() gives the width/height of the parent element
  int left = Window.Navigator.getUserAgent().contains("Chrome") && isPinchZoomed()
          ? getTrueAbsoluteLeft() : getAbsoluteLeft();

  if (rightAlign) {
    left += getOffsetWidth() - offsetWidth;
  }

  int top = Window.Navigator.getUserAgent().contains("Chrome") && isPinchZoomed()
          ? getTrueAbsoluteTop() + getOffsetHeight()
          : getAbsoluteTop() + getOffsetHeight();

  // Values to determine how to display the ContextMenu - above or below

  int dropDownBottom = top + offsetHeight;
  int screenBottom  = Window.getScrollTop()+Window.getClientHeight();

  // if the bottom will go off the current browser screen, display
  // the dropdown as a 'dropup' where the ContextMenu appears
  // above instead

  if(dropDownBottom > screenBottom) {
      int newTop = Window.Navigator.getUserAgent().contains("Chrome") && isPinchZoomed()
        ? getTrueAbsoluteTop() -offsetHeight
        : getAbsoluteTop() - offsetHeight;

      // account for the extreeeemely unlikely case where newTop
      // also goes off the screen in this case, it makes more
      // sense to just go off the bottom of the screen (the screen
      // won't grow up, and so the menu would get completely cut
      // off at the top

      if(newTop >= 0) {
          top = newTop;
      }
  }

  menu.setPopupPosition(left, top);

}
 

/**
 * This takes into account scrolling and will be in absolute
 * coordinates where the top left corner of the page is 0,0 but
 * the viewport may be scrolled to something else.
 */
public static final Rect getViewportBounds() {
    return new Rect(Window.getScrollLeft(), Window.getScrollTop(), Window.getClientWidth(), Window.getClientHeight());
}