/*
* Copyright 2000-2014 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.client.ui;
import static com.vaadin.client.Util.isFocusedElementEditable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import com.google.gwt.aria.client.Id;
import com.google.gwt.aria.client.RelevantValue;
import com.google.gwt.aria.client.Roles;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.Display;
import com.google.gwt.dom.client.Style.Position;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.dom.client.Style.Visibility;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.event.dom.client.ScrollEvent;
import com.google.gwt.event.dom.client.ScrollHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.Event.NativePreviewEvent;
import com.google.gwt.user.client.Event.NativePreviewHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Widget;
import com.vaadin.client.ApplicationConnection;
import com.vaadin.client.BrowserInfo;
import com.vaadin.client.ComponentConnector;
import com.vaadin.client.ConnectorMap;
import com.vaadin.client.Focusable;
import com.vaadin.client.LayoutManager;
import com.vaadin.client.Util;
import com.vaadin.client.debug.internal.VDebugWindow;
import com.vaadin.client.ui.ShortcutActionHandler.ShortcutActionHandlerOwner;
import com.vaadin.client.ui.aria.AriaHelper;
import com.vaadin.client.ui.window.WindowMoveEvent;
import com.vaadin.client.ui.window.WindowMoveHandler;
import com.vaadin.shared.Connector;
import com.vaadin.shared.EventId;
import com.vaadin.shared.ui.window.WindowMode;
import com.vaadin.shared.ui.window.WindowRole;
/**
* "Sub window" component.
*
* @author Vaadin Ltd
*/
public class VWindow extends VOverlay implements ShortcutActionHandlerOwner,
ScrollHandler, KeyDownHandler, KeyUpHandler, FocusHandler, BlurHandler,
Focusable {
private static ArrayList<VWindow> windowOrder = new ArrayList<VWindow>();
private static boolean orderingDefered;
public static final String CLASSNAME = "v-window";
private static final String MODAL_WINDOW_OPEN_CLASSNAME = "v-modal-window-open";
private static final int STACKING_OFFSET_PIXELS = 15;
public static final int Z_INDEX = 10000;
/** For internal use only. May be removed or replaced in the future. */
public Element contents;
/** For internal use only. May be removed or replaced in the future. */
public Element header;
/** For internal use only. May be removed or replaced in the future. */
public Element footer;
private Element resizeBox;
/** For internal use only. May be removed or replaced in the future. */
public final FocusableScrollPanel contentPanel = new FocusableScrollPanel();
private boolean dragging;
private int startX;
private int startY;
private int origX;
private int origY;
private boolean resizing;
private int origW;
private int origH;
/** For internal use only. May be removed or replaced in the future. */
public Element closeBox;
/** For internal use only. May be removed or replaced in the future. */
public Element maximizeRestoreBox;
/** For internal use only. May be removed or replaced in the future. */
public ApplicationConnection client;
/** For internal use only. May be removed or replaced in the future. */
public String id;
/** For internal use only. May be removed or replaced in the future. */
public ShortcutActionHandler shortcutHandler;
/** Last known positionx read from UIDL or updated to application connection */
private int uidlPositionX = -1;
/** Last known positiony read from UIDL or updated to application connection */
private int uidlPositionY = -1;
/** For internal use only. May be removed or replaced in the future. */
public boolean vaadinModality = false;
/** For internal use only. May be removed or replaced in the future. */
public boolean resizable = true;
private boolean draggable = true;
/** For internal use only. May be removed or replaced in the future. */
public boolean resizeLazy = false;
private Element modalityCurtain;
private Element draggingCurtain;
private Element resizingCurtain;
private Element headerText;
private boolean closable = true;
private Connector[] assistiveConnectors = new Connector[0];
private String assistivePrefix;
private String assistivePostfix;
private Element topTabStop;
private Element bottomTabStop;
private NativePreviewHandler topEventBlocker;
private NativePreviewHandler bottomEventBlocker;
private HandlerRegistration topBlockerRegistration;
private HandlerRegistration bottomBlockerRegistration;
// Prevents leaving the window with the Tab key when true
private boolean doTabStop;
/**
* If centered (via UIDL), the window should stay in the centered -mode
* until a position is received from the server, or the user moves or
* resizes the window.
* <p>
* For internal use only. May be removed or replaced in the future.
*/
public boolean centered = false;
/** For internal use only. May be removed or replaced in the future. */
public boolean immediate;
private Element wrapper;
/** For internal use only. May be removed or replaced in the future. */
public boolean visibilityChangesDisabled;
/** For internal use only. May be removed or replaced in the future. */
public int bringToFrontSequence = -1;
private VLazyExecutor delayedContentsSizeUpdater = new VLazyExecutor(200,
new ScheduledCommand() {
@Override
public void execute() {
updateContentsSize();
}
});
public VWindow() {
super(false, false, true); // no autohide, not modal, shadow
// Different style of shadow for windows
setShadowStyle("window");
Roles.getDialogRole().set(getElement());
Roles.getDialogRole().setAriaRelevantProperty(getElement(),
RelevantValue.ADDITIONS);
constructDOM();
contentPanel.addScrollHandler(this);
contentPanel.addKeyDownHandler(this);
contentPanel.addKeyUpHandler(this);
contentPanel.addFocusHandler(this);
contentPanel.addBlurHandler(this);
}
@Override
protected void onAttach() {
super.onAttach();
/*
* Stores the element that has focus in the application UI when the
* window is opened, so it can be restored when the window closes.
*
* This is currently implemented for the case when one non-modal window
* can be open at the same time, and the focus is not changed while the
* window is open.
*/
getApplicationConnection().getUIConnector().getWidget().storeFocus();
/*
* When this window gets reattached, set the tabstop to the previous
* state.
*/
setTabStopEnabled(doTabStop);
// Fix for #14413. Any pseudo elements inside these elements are not
// visible on initial render unless we shake the DOM.
if (BrowserInfo.get().isIE8()) {
closeBox.getStyle().setDisplay(Display.NONE);
maximizeRestoreBox.getStyle().setDisplay(Display.NONE);
Scheduler.get().scheduleFinally(new Command() {
@Override
public void execute() {
closeBox.getStyle().clearDisplay();
maximizeRestoreBox.getStyle().clearDisplay();
}
});
}
}
@Override
protected void onDetach() {
super.onDetach();
/*
* Restores the previously stored focused element.
*
* When the focus was changed outside the window while the window was
* open, the originally stored element is restored.
*/
getApplicationConnection().getUIConnector().getWidget()
.focusStoredElement();
removeTabBlockHandlers();
}
private void addTabBlockHandlers() {
if (topBlockerRegistration == null) {
topBlockerRegistration = Event
.addNativePreviewHandler(topEventBlocker);
bottomBlockerRegistration = Event
.addNativePreviewHandler(bottomEventBlocker);
}
}
private void removeTabBlockHandlers() {
if (topBlockerRegistration != null) {
topBlockerRegistration.removeHandler();
topBlockerRegistration = null;
bottomBlockerRegistration.removeHandler();
bottomBlockerRegistration = null;
}
}
public void bringToFront() {
int curIndex = windowOrder.indexOf(this);
if (curIndex + 1 < windowOrder.size()) {
windowOrder.remove(this);
windowOrder.add(this);
for (; curIndex < windowOrder.size(); curIndex++) {
windowOrder.get(curIndex).setWindowOrder(curIndex);
}
}
}
/**
* Returns true if this window is the topmost VWindow
*
* @return
*/
private boolean isActive() {
return equals(getTopmostWindow());
}
private static VWindow getTopmostWindow() {
if (windowOrder.size() > 0) {
return windowOrder.get(windowOrder.size() - 1);
}
return null;
}
/** For internal use only. May be removed or replaced in the future. */
public void setWindowOrderAndPosition() {
// This cannot be done in the constructor as the widgets are created in
// a different order than on they should appear on screen
if (windowOrder.contains(this)) {
// Already set
return;
}
final int order = windowOrder.size();
setWindowOrder(order);
windowOrder.add(this);
setPopupPosition(order * STACKING_OFFSET_PIXELS, order
* STACKING_OFFSET_PIXELS);
}
private void setWindowOrder(int order) {
setZIndex(order + Z_INDEX);
}
@Override
protected void setZIndex(int zIndex) {
super.setZIndex(zIndex);
if (vaadinModality) {
getModalityCurtain().getStyle().setZIndex(zIndex);
}
}
protected com.google.gwt.user.client.Element getModalityCurtain() {
if (modalityCurtain == null) {
modalityCurtain = DOM.createDiv();
modalityCurtain.setClassName(CLASSNAME + "-modalitycurtain");
}
return DOM.asOld(modalityCurtain);
}
protected void constructDOM() {
setStyleName(CLASSNAME);
topTabStop = DOM.createDiv();
DOM.setElementAttribute(topTabStop, "tabindex", "0");
header = DOM.createDiv();
DOM.setElementProperty(header, "className", CLASSNAME + "-outerheader");
headerText = DOM.createDiv();
DOM.setElementProperty(headerText, "className", CLASSNAME + "-header");
contents = DOM.createDiv();
DOM.setElementProperty(contents, "className", CLASSNAME + "-contents");
footer = DOM.createDiv();
DOM.setElementProperty(footer, "className", CLASSNAME + "-footer");
resizeBox = DOM.createDiv();
DOM.setElementProperty(resizeBox, "className", CLASSNAME + "-resizebox");
closeBox = DOM.createDiv();
maximizeRestoreBox = DOM.createDiv();
DOM.setElementProperty(maximizeRestoreBox, "className", CLASSNAME
+ "-maximizebox");
DOM.setElementAttribute(maximizeRestoreBox, "tabindex", "0");
DOM.setElementProperty(closeBox, "className", CLASSNAME + "-closebox");
DOM.setElementAttribute(closeBox, "tabindex", "0");
DOM.appendChild(footer, resizeBox);
bottomTabStop = DOM.createDiv();
DOM.setElementAttribute(bottomTabStop, "tabindex", "0");
wrapper = DOM.createDiv();
DOM.setElementProperty(wrapper, "className", CLASSNAME + "-wrap");
DOM.appendChild(wrapper, topTabStop);
DOM.appendChild(wrapper, header);
DOM.appendChild(wrapper, maximizeRestoreBox);
DOM.appendChild(wrapper, closeBox);
DOM.appendChild(header, headerText);
DOM.appendChild(wrapper, contents);
DOM.appendChild(wrapper, footer);
DOM.appendChild(wrapper, bottomTabStop);
DOM.appendChild(super.getContainerElement(), wrapper);
sinkEvents(Event.ONDBLCLICK | Event.MOUSEEVENTS | Event.TOUCHEVENTS
| Event.ONCLICK | Event.ONLOSECAPTURE);
setWidget(contentPanel);
// Make the closebox accessible for assistive devices
Roles.getButtonRole().set(closeBox);
Roles.getButtonRole().setAriaLabelProperty(closeBox, "close button");
// Make the maximizebox accessible for assistive devices
Roles.getButtonRole().set(maximizeRestoreBox);
Roles.getButtonRole().setAriaLabelProperty(maximizeRestoreBox,
"maximize button");
// Provide the title to assistive devices
AriaHelper.ensureHasId(headerText);
Roles.getDialogRole().setAriaLabelledbyProperty(getElement(),
Id.of(headerText));
// Handlers to Prevent tab to leave the window
// and backspace to cause browser navigation
topEventBlocker = new NativePreviewHandler() {
@Override
public void onPreviewNativeEvent(NativePreviewEvent event) {
NativeEvent nativeEvent = event.getNativeEvent();
if (nativeEvent.getEventTarget().cast() == topTabStop
&& nativeEvent.getKeyCode() == KeyCodes.KEY_TAB
&& nativeEvent.getShiftKey()) {
nativeEvent.preventDefault();
}
if (nativeEvent.getEventTarget().cast() == topTabStop
&& nativeEvent.getKeyCode() == KeyCodes.KEY_BACKSPACE) {
nativeEvent.preventDefault();
}
}
};
bottomEventBlocker = new NativePreviewHandler() {
@Override
public void onPreviewNativeEvent(NativePreviewEvent event) {
NativeEvent nativeEvent = event.getNativeEvent();
if (nativeEvent.getEventTarget().cast() == bottomTabStop
&& nativeEvent.getKeyCode() == KeyCodes.KEY_TAB
&& !nativeEvent.getShiftKey()) {
nativeEvent.preventDefault();
}
if (nativeEvent.getEventTarget().cast() == bottomTabStop
&& nativeEvent.getKeyCode() == KeyCodes.KEY_BACKSPACE) {
nativeEvent.preventDefault();
}
}
};
}
/**
* Sets the message that is provided to users of assistive devices when the
* user reaches the top of the window when leaving a window with the tab key
* is prevented.
* <p>
* This message is not visible on the screen.
*
* @param topMessage
* String provided when the user navigates with Shift-Tab keys to
* the top of the window
*/
public void setTabStopTopAssistiveText(String topMessage) {
Roles.getNoteRole().setAriaLabelProperty(topTabStop, topMessage);
}
/**
* Sets the message that is provided to users of assistive devices when the
* user reaches the bottom of the window when leaving a window with the tab
* key is prevented.
* <p>
* This message is not visible on the screen.
*
* @param bottomMessage
* String provided when the user navigates with the Tab key to
* the bottom of the window
*/
public void setTabStopBottomAssistiveText(String bottomMessage) {
Roles.getNoteRole().setAriaLabelProperty(bottomTabStop, bottomMessage);
}
/**
* Gets the message that is provided to users of assistive devices when the
* user reaches the top of the window when leaving a window with the tab key
* is prevented.
*
* @return the top message
*/
public String getTabStopTopAssistiveText() {
return Roles.getNoteRole().getAriaLabelProperty(topTabStop);
}
/**
* Gets the message that is provided to users of assistive devices when the
* user reaches the bottom of the window when leaving a window with the tab
* key is prevented.
*
* @return the bottom message
*/
public String getTabStopBottomAssistiveText() {
return Roles.getNoteRole().getAriaLabelProperty(bottomTabStop);
}
/**
* Calling this method will defer ordering algorithm, to order windows based
* on servers bringToFront and modality instructions. Non changed windows
* will be left intact.
* <p>
* For internal use only. May be removed or replaced in the future.
*/
public static void deferOrdering() {
if (!orderingDefered) {
orderingDefered = true;
Scheduler.get().scheduleFinally(new Command() {
@Override
public void execute() {
doServerSideOrdering();
VNotification.bringNotificationsToFront();
}
});
}
}
private static void doServerSideOrdering() {
orderingDefered = false;
VWindow[] array = windowOrder.toArray(new VWindow[windowOrder.size()]);
Arrays.sort(array, new Comparator<VWindow>() {
@Override
public int compare(VWindow o1, VWindow o2) {
/*
* Order by modality, then by bringtofront sequence.
*/
if (o1.vaadinModality && !o2.vaadinModality) {
return 1;
} else if (!o1.vaadinModality && o2.vaadinModality) {
return -1;
} else if (o1.bringToFrontSequence > o2.bringToFrontSequence) {
return 1;
} else if (o1.bringToFrontSequence < o2.bringToFrontSequence) {
return -1;
} else {
return 0;
}
}
});
for (int i = 0; i < array.length; i++) {
VWindow w = array[i];
if (w.bringToFrontSequence != -1 || w.vaadinModality) {
w.bringToFront();
w.bringToFrontSequence = -1;
}
}
}
@Override
public void setVisible(boolean visible) {
/*
* Visibility with VWindow works differently than with other Paintables
* in Vaadin. Invisible VWindows are not attached to DOM at all. Flag is
* used to avoid visibility call from
* ApplicationConnection.updateComponent();
*/
if (!visibilityChangesDisabled) {
super.setVisible(visible);
}
if (visible
&& BrowserInfo.get().requiresPositionAbsoluteOverflowAutoFix()) {
/*
* Shake up the DOM a bit to make the window shed unnecessary
* scrollbars and resize correctly afterwards. The version fixing
* ticket #11994 which was changing the size to 110% was replaced
* with this due to ticket #12943
*/
Util.runWebkitOverflowAutoFix(contents.getFirstChildElement());
}
}
/** For internal use only. May be removed or replaced in the future. */
public void setDraggable(boolean draggable) {
if (this.draggable == draggable) {
return;
}
this.draggable = draggable;
setCursorProperties();
}
private void setCursorProperties() {
if (!draggable) {
header.getStyle().setProperty("cursor", "default");
footer.getStyle().setProperty("cursor", "default");
} else {
header.getStyle().setProperty("cursor", "");
footer.getStyle().setProperty("cursor", "");
}
}
/**
* Sets the closable state of the window. Additionally hides/shows the close
* button according to the new state.
*
* @param closable
* true if the window can be closed by the user
*/
public void setClosable(boolean closable) {
if (this.closable == closable) {
return;
}
this.closable = closable;
if (closable) {
closeBox.getStyle().clearDisplay();
} else {
closeBox.getStyle().setDisplay(Display.NONE);
}
}
/**
* Returns the closable state of the sub window. If the sub window is
* closable a decoration (typically an X) is shown to the user. By clicking
* on the X the user can close the window.
*
* @return true if the sub window is closable
*/
protected boolean isClosable() {
return closable;
}
@Override
public void show() {
if (!windowOrder.contains(this)) {
// This is needed if the window is hidden and then shown again.
// Otherwise this VWindow is added to windowOrder in the
// constructor.
windowOrder.add(this);
}
if (vaadinModality) {
showModalityCurtain();
}
super.show();
}
@Override
public void hide() {
/*
* If the window has a RichTextArea and the RTA is focused at the time
* of hiding in IE8 only the window will have some problems returning
* the focus to the correct place. Curiously the focus will be returned
* correctly if clicking on the "close" button in the window header but
* closing the window from a button for example in the window will fail.
* Symptom described in #10776
*
* The problematic part is that for the focus to be returned correctly
* an input element needs to be focused in the root panel. Focusing some
* other element apparently won't work.
*/
if (BrowserInfo.get().isIE8()) {
fixIE8FocusCaptureIssue();
}
if (vaadinModality) {
hideModalityCurtain();
}
super.hide();
int curIndex = windowOrder.indexOf(this);
// Remove window from windowOrder to avoid references being left
// hanging.
windowOrder.remove(curIndex);
// Update the z-indices of any remaining windows
while (curIndex < windowOrder.size()) {
windowOrder.get(curIndex).setWindowOrder(curIndex++);
}
}
private void fixIE8FocusCaptureIssue() {
Element e = DOM.createInputText();
Style elemStyle = e.getStyle();
elemStyle.setPosition(Position.ABSOLUTE);
elemStyle.setTop(-10, Unit.PX);
elemStyle.setWidth(0, Unit.PX);
elemStyle.setHeight(0, Unit.PX);
contentPanel.getElement().appendChild(e);
e.focus();
contentPanel.getElement().removeChild(e);
}
/** For internal use only. May be removed or replaced in the future. */
public void setVaadinModality(boolean modality) {
vaadinModality = modality;
if (vaadinModality) {
if (isAttached()) {
showModalityCurtain();
}
addTabBlockHandlers();
deferOrdering();
} else {
if (modalityCurtain != null) {
if (isAttached()) {
hideModalityCurtain();
}
modalityCurtain = null;
}
if (!doTabStop) {
removeTabBlockHandlers();
}
}
}
private void showModalityCurtain() {
getModalityCurtain().getStyle().setZIndex(
windowOrder.indexOf(this) + Z_INDEX);
if (isShowing()) {
getOverlayContainer().insertBefore(getModalityCurtain(),
getElement());
} else {
getOverlayContainer().appendChild(getModalityCurtain());
}
Document.get().getBody().addClassName(MODAL_WINDOW_OPEN_CLASSNAME);
}
private void hideModalityCurtain() {
Document.get().getBody().removeClassName(MODAL_WINDOW_OPEN_CLASSNAME);
modalityCurtain.removeFromParent();
if (BrowserInfo.get().isIE()) {
// IE leaks memory in certain cases unless we release the reference
// (#9197)
modalityCurtain = null;
}
}
/*
* Shows an empty div on top of all other content; used when moving, so that
* iframes (etc) do not steal event.
*/
private void showDraggingCurtain() {
getElement().getParentElement().insertBefore(getDraggingCurtain(),
getElement());
}
private void hideDraggingCurtain() {
if (draggingCurtain != null) {
draggingCurtain.removeFromParent();
}
}
/*
* Shows an empty div on top of all other content; used when resizing, so
* that iframes (etc) do not steal event.
*/
private void showResizingCurtain() {
getElement().getParentElement().insertBefore(getResizingCurtain(),
getElement());
}
private void hideResizingCurtain() {
if (resizingCurtain != null) {
resizingCurtain.removeFromParent();
}
}
private Element getDraggingCurtain() {
if (draggingCurtain == null) {
draggingCurtain = createCurtain();
draggingCurtain.setClassName(CLASSNAME + "-draggingCurtain");
}
return draggingCurtain;
}
private Element getResizingCurtain() {
if (resizingCurtain == null) {
resizingCurtain = createCurtain();
resizingCurtain.setClassName(CLASSNAME + "-resizingCurtain");
}
return resizingCurtain;
}
private Element createCurtain() {
Element curtain = DOM.createDiv();
curtain.getStyle().setPosition(Position.ABSOLUTE);
curtain.getStyle().setTop(0, Unit.PX);
curtain.getStyle().setLeft(0, Unit.PX);
curtain.getStyle().setWidth(100, Unit.PCT);
curtain.getStyle().setHeight(100, Unit.PCT);
curtain.getStyle().setZIndex(VOverlay.Z_INDEX);
return curtain;
}
/** For internal use only. May be removed or replaced in the future. */
public void setResizable(boolean resizability) {
resizable = resizability;
if (resizability) {
DOM.setElementProperty(footer, "className", CLASSNAME + "-footer");
DOM.setElementProperty(resizeBox, "className", CLASSNAME
+ "-resizebox");
} else {
DOM.setElementProperty(footer, "className", CLASSNAME + "-footer "
+ CLASSNAME + "-footer-noresize");
DOM.setElementProperty(resizeBox, "className", CLASSNAME
+ "-resizebox " + CLASSNAME + "-resizebox-disabled");
}
}
public void updateMaximizeRestoreClassName(boolean visible,
WindowMode windowMode) {
String className;
if (windowMode == WindowMode.MAXIMIZED) {
className = CLASSNAME + "-restorebox";
} else {
className = CLASSNAME + "-maximizebox";
}
if (!visible) {
className = className + " " + className + "-disabled";
}
maximizeRestoreBox.setClassName(className);
}
// TODO this will eventually be removed, currently used to avoid updating to
// server side.
public void setPopupPositionNoUpdate(int left, int top) {
if (top < 0) {
// ensure window is not moved out of browser window from top of the
// screen
top = 0;
}
super.setPopupPosition(left, top);
}
@Override
public void setPopupPosition(int left, int top) {
if (top < 0) {
// ensure window is not moved out of browser window from top of the
// screen
top = 0;
}
super.setPopupPosition(left, top);
if (left != uidlPositionX && client != null) {
client.updateVariable(id, "positionx", left, false);
uidlPositionX = left;
}
if (top != uidlPositionY && client != null) {
client.updateVariable(id, "positiony", top, false);
uidlPositionY = top;
}
}
public void setCaption(String c) {
setCaption(c, null);
}
public void setCaption(String c, String iconURL) {
String html = Util.escapeHTML(c);
// Provide information to assistive device users that a sub window was
// opened
String prefix = "<span class='"
+ AriaHelper.ASSISTIVE_DEVICE_ONLY_STYLE + "'>"
+ assistivePrefix + "</span>";
String postfix = "<span class='"
+ AriaHelper.ASSISTIVE_DEVICE_ONLY_STYLE + "'>"
+ assistivePostfix + "</span>";
html = prefix + html + postfix;
headerText.setInnerHTML(html);
if (iconURL != null) {
Icon icon = client.getIcon(iconURL);
DOM.insertChild(headerText, icon.getElement(), 0);
}
}
/**
* Setter for the text for assistive devices the window caption is prefixed
* with.
*
* @param assistivePrefix
* the assistivePrefix to set
*/
public void setAssistivePrefix(String assistivePrefix) {
this.assistivePrefix = assistivePrefix;
}
/**
* Getter for the text for assistive devices the window caption is prefixed
* with.
*
* @return the assistivePrefix
*/
public String getAssistivePrefix() {
return assistivePrefix;
}
/**
* Setter for the text for assistive devices the window caption is postfixed
* with.
*
* @param assistivePostfix
* the assistivePostfix to set
*/
public void setAssistivePostfix(String assistivePostfix) {
this.assistivePostfix = assistivePostfix;
}
/**
* Getter for the text for assistive devices the window caption is postfixed
* with.
*
* @return the assistivePostfix
*/
public String getAssistivePostfix() {
return assistivePostfix;
}
@Override
protected com.google.gwt.user.client.Element getContainerElement() {
// in GWT 1.5 this method is used in PopupPanel constructor
if (contents == null) {
return super.getContainerElement();
}
return DOM.asOld(contents);
}
private Event headerDragPending;
@Override
public void onBrowserEvent(final Event event) {
boolean bubble = true;
final int type = event.getTypeInt();
final Element target = DOM.eventGetTarget(event);
if (resizing || resizeBox == target) {
onResizeEvent(event);
bubble = false;
} else if (isClosable() && target == closeBox) {
if (type == Event.ONCLICK) {
onCloseClick();
}
bubble = false;
} else if (target == maximizeRestoreBox) {
// handled in connector
if (type != Event.ONCLICK) {
bubble = false;
}
} else if (header.isOrHasChild(target) && !dragging) {
// dblclick handled in connector
if (type != Event.ONDBLCLICK && draggable) {
if (type == Event.ONMOUSEDOWN) {
/**
* Prevents accidental selection of window caption or
* content. (#12726)
*/
event.preventDefault();
headerDragPending = event;
} else if (type == Event.ONMOUSEMOVE
&& headerDragPending != null) {
// ie won't work unless this is set here
dragging = true;
onDragEvent(headerDragPending);
onDragEvent(event);
headerDragPending = null;
} else {
headerDragPending = null;
}
bubble = false;
}
if (type == Event.ONCLICK) {
activateOnClick();
}
} else if (dragging || !contents.isOrHasChild(target)) {
onDragEvent(event);
bubble = false;
} else if (type == Event.ONCLICK) {
activateOnClick();
}
/*
* If clicking on other than the content, move focus to the window.
* After that this windows e.g. gets all keyboard shortcuts.
*/
if (type == Event.ONMOUSEDOWN
&& !contentPanel.getElement().isOrHasChild(target)
&& target != closeBox && target != maximizeRestoreBox) {
contentPanel.focus();
}
if (!bubble) {
event.stopPropagation();
} else {
// Super.onBrowserEvent takes care of Handlers added by the
// ClickEventHandler
super.onBrowserEvent(event);
}
}
private void activateOnClick() {
// clicked inside window or inside header, ensure to be on top
if (!isActive()) {
bringToFront();
}
}
private void onCloseClick() {
// Send the close event to the server
client.updateVariable(id, "close", true, true);
}
private void onResizeEvent(Event event) {
if (resizable && Util.isTouchEventOrLeftMouseButton(event)) {
switch (event.getTypeInt()) {
case Event.ONMOUSEDOWN:
case Event.ONTOUCHSTART:
if (!isActive()) {
bringToFront();
}
showResizingCurtain();
if (BrowserInfo.get().isIE()) {
resizeBox.getStyle().setVisibility(Visibility.HIDDEN);
}
resizing = true;
startX = Util.getTouchOrMouseClientX(event);
startY = Util.getTouchOrMouseClientY(event);
origW = getElement().getOffsetWidth();
origH = getElement().getOffsetHeight();
DOM.setCapture(getElement());
event.preventDefault();
break;
case Event.ONMOUSEUP:
case Event.ONTOUCHEND:
setSize(event, true);
case Event.ONTOUCHCANCEL:
DOM.releaseCapture(getElement());
case Event.ONLOSECAPTURE:
hideResizingCurtain();
if (BrowserInfo.get().isIE()) {
resizeBox.getStyle().clearVisibility();
}
resizing = false;
break;
case Event.ONMOUSEMOVE:
case Event.ONTOUCHMOVE:
if (resizing) {
centered = false;
setSize(event, false);
event.preventDefault();
}
break;
default:
event.preventDefault();
break;
}
}
}
/**
* TODO check if we need to support this with touch based devices.
*
* Checks if the cursor was inside the browser content area when the event
* happened.
*
* @param event
* The event to be checked
* @return true, if the cursor is inside the browser content area
*
* false, otherwise
*/
private boolean cursorInsideBrowserContentArea(Event event) {
if (event.getClientX() < 0 || event.getClientY() < 0) {
// Outside to the left or above
return false;
}
if (event.getClientX() > Window.getClientWidth()
|| event.getClientY() > Window.getClientHeight()) {
// Outside to the right or below
return false;
}
return true;
}
private void setSize(Event event, boolean updateVariables) {
if (!cursorInsideBrowserContentArea(event)) {
// Only drag while cursor is inside the browser client area
return;
}
int w = Util.getTouchOrMouseClientX(event) - startX + origW;
int h = Util.getTouchOrMouseClientY(event) - startY + origH;
w = Math.max(w, getMinWidth());
h = Math.max(h, getMinHeight());
setWidth(w + "px");
setHeight(h + "px");
if (updateVariables) {
// sending width back always as pixels, no need for unit
client.updateVariable(id, "width", w, false);
client.updateVariable(id, "height", h, immediate);
}
if (updateVariables || !resizeLazy) {
// Resize has finished or is not lazy
updateContentsSize();
} else {
// Lazy resize - wait for a while before re-rendering contents
delayedContentsSizeUpdater.trigger();
}
}
private int getMinHeight() {
return getPixelValue(getElement().getStyle().getProperty("minHeight"));
}
private int getMinWidth() {
return getPixelValue(getElement().getStyle().getProperty("minWidth"));
}
private static int getPixelValue(String size) {
if (size == null || !size.endsWith("px")) {
return -1;
} else {
return Integer.parseInt(size.substring(0, size.length() - 2));
}
}
public void updateContentsSize() {
LayoutManager layoutManager = getLayoutManager();
layoutManager.setNeedsMeasure(ConnectorMap.get(client).getConnector(
this));
layoutManager.layoutNow();
}
@Override
public void setWidth(String width) {
// Override PopupPanel which sets the width to the contents
getElement().getStyle().setProperty("width", width);
// Update v-has-width in case undefined window is resized
setStyleName("v-has-width", width != null && width.length() > 0);
}
@Override
public void setHeight(String height) {
// Override PopupPanel which sets the height to the contents
getElement().getStyle().setProperty("height", height);
// Update v-has-height in case undefined window is resized
setStyleName("v-has-height", height != null && height.length() > 0);
}
private void onDragEvent(Event event) {
if (!Util.isTouchEventOrLeftMouseButton(event)) {
return;
}
switch (DOM.eventGetType(event)) {
case Event.ONTOUCHSTART:
if (event.getTouches().length() > 1) {
return;
}
case Event.ONMOUSEDOWN:
if (!isActive()) {
bringToFront();
}
beginMovingWindow(event);
break;
case Event.ONMOUSEUP:
case Event.ONTOUCHEND:
case Event.ONTOUCHCANCEL:
case Event.ONLOSECAPTURE:
stopMovingWindow();
break;
case Event.ONMOUSEMOVE:
case Event.ONTOUCHMOVE:
moveWindow(event);
break;
default:
break;
}
}
private void moveWindow(Event event) {
if (dragging) {
centered = false;
if (cursorInsideBrowserContentArea(event)) {
// Only drag while cursor is inside the browser client area
final int x = Util.getTouchOrMouseClientX(event) - startX
+ origX;
final int y = Util.getTouchOrMouseClientY(event) - startY
+ origY;
setPopupPosition(x, y);
}
DOM.eventPreventDefault(event);
}
}
private void beginMovingWindow(Event event) {
if (draggable) {
showDraggingCurtain();
dragging = true;
startX = Util.getTouchOrMouseClientX(event);
startY = Util.getTouchOrMouseClientY(event);
origX = DOM.getAbsoluteLeft(getElement());
origY = DOM.getAbsoluteTop(getElement());
DOM.setCapture(getElement());
DOM.eventPreventDefault(event);
}
}
private void stopMovingWindow() {
dragging = false;
hideDraggingCurtain();
DOM.releaseCapture(getElement());
// fire move event
fireEvent(new WindowMoveEvent(uidlPositionX, uidlPositionY));
}
@Override
public boolean onEventPreview(Event event) {
if (dragging) {
onDragEvent(event);
return false;
} else if (resizing) {
onResizeEvent(event);
return false;
}
// TODO This is probably completely unnecessary as the modality curtain
// prevents events from reaching other windows and any security check
// must be done on the server side and not here.
// The code here is also run many times as each VWindow has an event
// preview but we cannot check only the current VWindow here (e.g.
// if(isTopMost) {...}) because PopupPanel will cause all events that
// are not cancelled here and target this window to be consume():d
// meaning the event won't be sent to the rest of the preview handlers.
if (getTopmostWindow() != null && getTopmostWindow().vaadinModality) {
// Topmost window is modal. Cancel the event if it targets something
// outside that window (except debug console...)
if (DOM.getCaptureElement() != null) {
// Allow events when capture is set
return true;
}
final Element target = event.getEventTarget().cast();
if (!DOM.isOrHasChild(getTopmostWindow().getElement(), target)) {
// not within the modal window, but let's see if it's in the
// debug window
Widget w = Util.findWidget(target, null);
while (w != null) {
if (w instanceof VDebugWindow) {
return true; // allow debug-window clicks
} else if (ConnectorMap.get(client).isConnector(w)) {
return false;
}
w = w.getParent();
}
return false;
}
}
return true;
}
@Override
public void addStyleDependentName(String styleSuffix) {
// VWindow's getStyleElement() does not return the same element as
// getElement(), so we need to override this.
setStyleName(getElement(), getStylePrimaryName() + "-" + styleSuffix,
true);
}
@Override
public ShortcutActionHandler getShortcutActionHandler() {
return shortcutHandler;
}
@Override
public void onScroll(ScrollEvent event) {
client.updateVariable(id, "scrollTop",
contentPanel.getScrollPosition(), false);
client.updateVariable(id, "scrollLeft",
contentPanel.getHorizontalScrollPosition(), false);
}
@Override
public void onKeyDown(KeyDownEvent event) {
if (vaadinModality
&& event.getNativeKeyCode() == KeyCodes.KEY_BACKSPACE
&& !isFocusedElementEditable()) {
event.preventDefault();
}
if (shortcutHandler != null) {
shortcutHandler
.handleKeyboardEvent(Event.as(event.getNativeEvent()));
return;
}
}
@Override
public void onKeyUp(KeyUpEvent event) {
if (isClosable() && event.getNativeKeyCode() == KeyCodes.KEY_ESCAPE) {
onCloseClick();
}
}
@Override
public void onBlur(BlurEvent event) {
if (client.hasEventListeners(this, EventId.BLUR)) {
client.updateVariable(id, EventId.BLUR, "", true);
}
}
@Override
public void onFocus(FocusEvent event) {
if (client.hasEventListeners(this, EventId.FOCUS)) {
client.updateVariable(id, EventId.FOCUS, "", true);
}
}
@Override
public void focus() {
contentPanel.focus();
}
private int getDecorationHeight() {
LayoutManager lm = getLayoutManager();
int headerHeight = lm.getOuterHeight(header);
int footerHeight = lm.getOuterHeight(footer);
return headerHeight + footerHeight;
}
private LayoutManager getLayoutManager() {
return LayoutManager.get(client);
}
private int getDecorationWidth() {
LayoutManager layoutManager = getLayoutManager();
return layoutManager.getOuterWidth(getElement())
- contentPanel.getElement().getOffsetWidth();
}
/**
* Allows to specify which connectors contain the description for the
* window. Text contained in the widgets of the connectors will be read by
* assistive devices when it is opened.
* <p>
* When the provided array is empty, an existing description is removed.
*
* @param connectors
* with the connectors of the widgets to use as description
*/
public void setAssistiveDescription(Connector[] connectors) {
if (connectors != null) {
assistiveConnectors = connectors;
if (connectors.length == 0) {
Roles.getDialogRole().removeAriaDescribedbyProperty(
getElement());
} else {
Id[] ids = new Id[connectors.length];
for (int index = 0; index < connectors.length; index++) {
if (connectors[index] == null) {
throw new IllegalArgumentException(
"All values in parameter description need to be non-null");
}
Element element = ((ComponentConnector) connectors[index])
.getWidget().getElement();
AriaHelper.ensureHasId(element);
ids[index] = Id.of(element);
}
Roles.getDialogRole().setAriaDescribedbyProperty(getElement(),
ids);
}
} else {
throw new IllegalArgumentException(
"Parameter description must be non-null");
}
}
/**
* Gets the connectors that are used as assistive description. Text
* contained in these connectors will be read by assistive devices when the
* window is opened.
*
* @return list of previously set connectors
*/
public List<Connector> getAssistiveDescription() {
return Collections.unmodifiableList(Arrays.asList(assistiveConnectors));
}
/**
* Sets the WAI-ARIA role the window.
*
* This role defines how an assistive device handles a window. Available
* roles are alertdialog and dialog (@see <a
* href="http://www.w3.org/TR/2011/CR-wai-aria-20110118/roles">Roles
* Model</a>).
*
* The default role is dialog.
*
* @param role
* WAI-ARIA role to set for the window
*/
public void setWaiAriaRole(WindowRole role) {
if (role == WindowRole.ALERTDIALOG) {
Roles.getAlertdialogRole().set(getElement());
} else {
Roles.getDialogRole().set(getElement());
}
}
/**
* Registers the handlers that prevent to leave the window using the
* Tab-key.
* <p>
* The value of the parameter doTabStop is stored and used for non-modal
* windows. For modal windows, the handlers are always registered, while
* preserving the stored value.
*
* @param doTabStop
* true to prevent leaving the window, false to allow leaving the
* window for non modal windows
*/
public void setTabStopEnabled(boolean doTabStop) {
this.doTabStop = doTabStop;
if (doTabStop || vaadinModality) {
addTabBlockHandlers();
} else {
removeTabBlockHandlers();
}
}
/**
* Adds a Handler for when user moves the window.
*
* @since 7.1.9
*
* @return {@link HandlerRegistration} used to remove the handler
*/
public HandlerRegistration addMoveHandler(WindowMoveHandler handler) {
return addHandler(handler, WindowMoveEvent.getType());
}
}