javafx.scene.web.WebView Maven / Gradle / Ivy
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package javafx.scene.web;
import com.sun.java.scene.web.WebViewHelper;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ReadOnlyDoubleProperty;
import javafx.beans.property.ReadOnlyDoubleWrapper;
import javafx.collections.ObservableList;
import javafx.css.CssMetaData;
import javafx.css.Styleable;
import javafx.css.StyleableBooleanProperty;
import javafx.css.StyleableDoubleProperty;
import javafx.css.StyleableObjectProperty;
import javafx.css.StyleableProperty;
import javafx.event.EventHandler;
import javafx.event.EventType;
import javafx.geometry.NodeOrientation;
import javafx.geometry.Point2D;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.input.DataFormat;
import javafx.scene.input.DragEvent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.InputMethodEvent;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.MouseButton;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.ScrollEvent;
import javafx.scene.input.TransferMode;
import javafx.scene.text.FontSmoothingType;
import javafx.stage.Stage;
import javafx.stage.Window;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javafx.css.converter.BooleanConverter;
import javafx.css.converter.EnumConverter;
import javafx.css.converter.SizeConverter;
import com.sun.javafx.geom.BaseBounds;
import com.sun.javafx.geom.PickRay;
import com.sun.javafx.geom.transform.BaseTransform;
import com.sun.javafx.scene.DirtyBits;
import com.sun.javafx.scene.NodeHelper;
import com.sun.javafx.scene.SceneHelper;
import com.sun.javafx.scene.input.PickResultChooser;
import com.sun.javafx.sg.prism.NGNode;
import com.sun.javafx.sg.prism.web.NGWebView;
import com.sun.javafx.tk.TKPulseListener;
import com.sun.javafx.tk.Toolkit;
import com.sun.javafx.webkit.InputMethodClientImpl;
import com.sun.javafx.webkit.KeyCodeMap;
import com.sun.webkit.WebPage;
import com.sun.webkit.event.WCFocusEvent;
import com.sun.webkit.event.WCInputMethodEvent;
import com.sun.webkit.event.WCKeyEvent;
import com.sun.webkit.event.WCMouseEvent;
import com.sun.webkit.event.WCMouseWheelEvent;
/**
* {@code WebView} is a {@link javafx.scene.Node} that manages a
* {@link WebEngine} and displays its content. The associated {@code WebEngine}
* is created automatically at construction time and cannot be changed
* afterwards. {@code WebView} handles mouse and some keyboard events, and
* manages scrolling automatically, so there's no need to put it into a
* {@code ScrollPane}.
*
* {@code WebView} objects must be created and accessed solely from the
* FX thread.
* @since JavaFX 2.0
*/
final public class WebView extends Parent {
private static final Map ID_MAP = Map.ofEntries(
Map.entry(MouseButton.NONE, WCMouseEvent.NOBUTTON),
Map.entry(MouseButton.PRIMARY, WCMouseEvent.BUTTON1),
Map.entry(MouseButton.MIDDLE, WCMouseEvent.BUTTON2),
Map.entry(MouseButton.SECONDARY, WCMouseEvent.BUTTON3),
Map.entry(MouseEvent.MOUSE_PRESSED, WCMouseEvent.MOUSE_PRESSED),
Map.entry(MouseEvent.MOUSE_RELEASED, WCMouseEvent.MOUSE_RELEASED),
Map.entry(MouseEvent.MOUSE_MOVED, WCMouseEvent.MOUSE_MOVED),
Map.entry(MouseEvent.MOUSE_DRAGGED, WCMouseEvent.MOUSE_DRAGGED),
Map.entry(KeyEvent.KEY_PRESSED, WCKeyEvent.KEY_PRESSED),
Map.entry(KeyEvent.KEY_RELEASED, WCKeyEvent.KEY_RELEASED),
Map.entry(KeyEvent.KEY_TYPED, WCKeyEvent.KEY_TYPED));
private static final boolean DEFAULT_CONTEXT_MENU_ENABLED = true;
private static final FontSmoothingType DEFAULT_FONT_SMOOTHING_TYPE = FontSmoothingType.LCD;
private static final double DEFAULT_ZOOM = 1.0;
private static final double DEFAULT_FONT_SCALE = 1.0;
private static final double DEFAULT_MIN_WIDTH = 0;
private static final double DEFAULT_MIN_HEIGHT = 0;
private static final double DEFAULT_PREF_WIDTH = 800;
private static final double DEFAULT_PREF_HEIGHT = 600;
private static final double DEFAULT_MAX_WIDTH = Double.MAX_VALUE;
private static final double DEFAULT_MAX_HEIGHT = Double.MAX_VALUE;
private final WebPage page;
private final WebEngine engine;
private volatile InputMethodClientImpl imClient;
/**
* The stage pulse listener registered with the toolkit.
* This field guarantees that the listener will exist throughout
* the whole lifetime of the WebView node. This field is necessary
* because the toolkit references its stage pulse listeners weakly.
*/
private final TKPulseListener stagePulseListener;
/**
* Returns the {@code WebEngine} object.
* @return the WebEngine
*/
public final WebEngine getEngine() {
return engine;
}
private final ReadOnlyDoubleWrapper width = new ReadOnlyDoubleWrapper(this, "width");
public final double getWidth() {
return width.get();
}
/**
* Width of this {@code WebView}.
* @return the width property
*/
public ReadOnlyDoubleProperty widthProperty() {
return width.getReadOnlyProperty();
}
private final ReadOnlyDoubleWrapper height = new ReadOnlyDoubleWrapper(this, "height");
public final double getHeight() {
return height.get();
}
/**
* Height of this {@code WebView}.
* @return the height property
*/
public ReadOnlyDoubleProperty heightProperty() {
return height.getReadOnlyProperty();
}
/*
* Zoom factor applied to the entire page contents.
*/
private DoubleProperty zoom;
public final void setZoom(double value) {
WebEngine.checkThread();
zoomProperty().set(value);
}
public final double getZoom() {
return (this.zoom != null)
? this.zoom.get()
: DEFAULT_ZOOM;
}
/**
* The current zoom factor applied to the entire page contents.
*
* @return the zoom property
* @defaultValue 1.0
*
* @since JavaFX 8.0
*/
public final DoubleProperty zoomProperty() {
if (zoom == null) {
zoom = new StyleableDoubleProperty(DEFAULT_ZOOM) {
@Override public void invalidated() {
Toolkit.getToolkit().checkFxUserThread();
page.setZoomFactor((float) get(), false);
}
@Override public CssMetaData getCssMetaData() {
return StyleableProperties.ZOOM;
}
@Override public Object getBean() {
return WebView.this;
}
@Override public String getName() {
return "zoom";
}
};
}
return zoom;
}
/**
* Specifies scale factor applied to font. This setting affects
* text content but not images and fixed size elements.
*
* @defaultValue 1.0
*/
private DoubleProperty fontScale;
public final void setFontScale(double value) {
WebEngine.checkThread();
fontScaleProperty().set(value);
}
public final double getFontScale() {
return (this.fontScale != null)
? this.fontScale.get()
: DEFAULT_FONT_SCALE;
}
public DoubleProperty fontScaleProperty() {
if (fontScale == null) {
fontScale = new StyleableDoubleProperty(DEFAULT_FONT_SCALE) {
@Override public void invalidated() {
Toolkit.getToolkit().checkFxUserThread();
page.setZoomFactor((float)get(), true);
}
@Override public CssMetaData getCssMetaData() {
return StyleableProperties.FONT_SCALE;
}
@Override public Object getBean() {
return WebView.this;
}
@Override public String getName() {
return "fontScale";
}
};
}
return fontScale;
}
{
// To initialize the class helper at the begining each constructor of this class
WebViewHelper.initHelper(this);
}
/**
* Creates a {@code WebView} object.
*/
public WebView() {
setNodeOrientation(NodeOrientation.LEFT_TO_RIGHT);
getStyleClass().add("web-view");
engine = new WebEngine();
engine.setView(this);
page = engine.getPage();
page.setFontSmoothingType(DEFAULT_FONT_SMOOTHING_TYPE.ordinal());
registerEventHandlers();
stagePulseListener = () -> {
handleStagePulse();
};
focusedProperty().addListener((ov, t, t1) -> {
if (page != null) {
// Traversal direction is not currently available in FX.
WCFocusEvent focusEvent = new WCFocusEvent(
isFocused() ? WCFocusEvent.FOCUS_GAINED
: WCFocusEvent.FOCUS_LOST,
WCFocusEvent.UNKNOWN);
page.dispatchFocusEvent(focusEvent);
}
});
setFocusTraversable(true);
Toolkit.getToolkit().addStageTkPulseListener(stagePulseListener);
}
// Resizing support. Allows arbitrary growing and shrinking.
// Designed after javafx.scene.control.Control
@Override public boolean isResizable() {
return true;
}
@Override public void resize(double width, double height) {
if ((width != this.width.get()) || (height != this.height.get())) {
this.width.set(width);
this.height.set(height);
NodeHelper.markDirty(this, DirtyBits.NODE_GEOMETRY);
NodeHelper.geomChanged(this);
}
}
/**
* Called during layout to determine the minimum width for this node.
*
* @return the minimum width that this node should be resized to during layout
*/
@Override public final double minWidth(double height) {
final double result = getMinWidth();
return Double.isNaN(result) || result < 0 ? 0 : result;
}
/**
* Called during layout to determine the minimum height for this node.
*
* @return the minimum height that this node should be resized to during layout
*/
@Override public final double minHeight(double width) {
final double result = getMinHeight();
return Double.isNaN(result) || result < 0 ? 0 : result;
}
/**
* Called during layout to determine the preferred width for this node.
*
* @return the preferred width that this node should be resized to during layout
*/
@Override public final double prefWidth(double height) {
final double result = getPrefWidth();
return Double.isNaN(result) || result < 0 ? 0 : result;
}
/**
* Called during layout to determine the preferred height for this node.
*
* @return the preferred height that this node should be resized to during layout
*/
@Override public final double prefHeight(double width) {
final double result = getPrefHeight();
return Double.isNaN(result) || result < 0 ? 0 : result;
}
/**
* Called during layout to determine the maximum width for this node.
*
* @return the maximum width that this node should be resized to during layout
*/
@Override public final double maxWidth(double height) {
final double result = getMaxWidth();
return Double.isNaN(result) || result < 0 ? 0 : result;
}
/**
* Called during layout to determine the maximum height for this node.
*
* @return the maximum height that this node should be resized to during layout
*/
@Override public final double maxHeight(double width) {
final double result = getMaxHeight();
return Double.isNaN(result) || result < 0 ? 0 : result;
}
/**
* Minimum width property.
* @return the minWidth property
*/
public DoubleProperty minWidthProperty() {
if (minWidth == null) {
minWidth = new StyleableDoubleProperty(DEFAULT_MIN_WIDTH) {
@Override
public void invalidated() {
if (getParent() != null) {
getParent().requestLayout();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.MIN_WIDTH;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "minWidth";
}
};
}
return minWidth;
}
private DoubleProperty minWidth;
public final void setMinWidth(double value) {
minWidthProperty().set(value);
}
public final double getMinWidth() {
return (this.minWidth != null)
? this.minWidth.get()
: DEFAULT_MIN_WIDTH;
}
/**
* Minimum height property.
* @return the minHeight property
*/
public DoubleProperty minHeightProperty() {
if (minHeight == null) {
minHeight = new StyleableDoubleProperty(DEFAULT_MIN_HEIGHT) {
@Override
public void invalidated() {
if (getParent() != null) {
getParent().requestLayout();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.MIN_HEIGHT;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "minHeight";
}
};
}
return minHeight;
}
private DoubleProperty minHeight;
public final void setMinHeight(double value) {
minHeightProperty().set(value);
}
public final double getMinHeight() {
return (this.minHeight != null)
? this.minHeight.get()
: DEFAULT_MIN_HEIGHT;
}
/**
* Convenience method for setting minimum width and height.
* @param minWidth the minimum width
* @param minHeight the minimum height
*/
public void setMinSize(double minWidth, double minHeight) {
setMinWidth(minWidth);
setMinHeight(minHeight);
}
/**
* Preferred width property.
* @return the prefWidth property
*/
public DoubleProperty prefWidthProperty() {
if (prefWidth == null) {
prefWidth = new StyleableDoubleProperty(DEFAULT_PREF_WIDTH) {
@Override
public void invalidated() {
if (getParent() != null) {
getParent().requestLayout();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.PREF_WIDTH;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "prefWidth";
}
};
}
return prefWidth;
}
private DoubleProperty prefWidth;
public final void setPrefWidth(double value) {
prefWidthProperty().set(value);
}
public final double getPrefWidth() {
return (this.prefWidth != null)
? this.prefWidth.get()
: DEFAULT_PREF_WIDTH;
}
/**
* Preferred height property.
* @return the prefHeight property
*/
public DoubleProperty prefHeightProperty() {
if (prefHeight == null) {
prefHeight = new StyleableDoubleProperty(DEFAULT_PREF_HEIGHT) {
@Override
public void invalidated() {
if (getParent() != null) {
getParent().requestLayout();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.PREF_HEIGHT;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "prefHeight";
}
};
}
return prefHeight;
}
private DoubleProperty prefHeight;
public final void setPrefHeight(double value) {
prefHeightProperty().set(value);
}
public final double getPrefHeight() {
return (this.prefHeight != null)
? this.prefHeight.get()
: DEFAULT_PREF_HEIGHT;
}
/**
* Convenience method for setting preferred width and height.
* @param prefWidth the preferred width
* @param prefHeight the preferred height
*/
public void setPrefSize(double prefWidth, double prefHeight) {
setPrefWidth(prefWidth);
setPrefHeight(prefHeight);
}
/**
* Maximum width property.
* @return the maxWidth property
*/
public DoubleProperty maxWidthProperty() {
if (maxWidth == null) {
maxWidth = new StyleableDoubleProperty(DEFAULT_MAX_WIDTH) {
@Override
public void invalidated() {
if (getParent() != null) {
getParent().requestLayout();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.MAX_WIDTH;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "maxWidth";
}
};
}
return maxWidth;
}
private DoubleProperty maxWidth;
public final void setMaxWidth(double value) {
maxWidthProperty().set(value);
}
public final double getMaxWidth() {
return (this.maxWidth != null)
? this.maxWidth.get()
: DEFAULT_MAX_WIDTH;
}
/**
* Maximum height property.
* @return the maxHeight property
*/
public DoubleProperty maxHeightProperty() {
if (maxHeight == null) {
maxHeight = new StyleableDoubleProperty(DEFAULT_MAX_HEIGHT) {
@Override
public void invalidated() {
if (getParent() != null) {
getParent().requestLayout();
}
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.MAX_HEIGHT;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "maxHeight";
}
};
}
return maxHeight;
}
private DoubleProperty maxHeight;
public final void setMaxHeight(double value) {
maxHeightProperty().set(value);
}
public final double getMaxHeight() {
return (this.maxHeight != null)
? this.maxHeight.get()
: DEFAULT_MAX_HEIGHT;
}
/**
* Convenience method for setting maximum width and height.
* @param maxWidth the maximum width
* @param maxHeight the maximum height
*/
public void setMaxSize(double maxWidth, double maxHeight) {
setMaxWidth(maxWidth);
setMaxHeight(maxHeight);
}
/**
* Specifies a requested font smoothing type : gray or LCD.
*
* The width of the bounding box is defined by the widest row.
*
* Note: LCD mode doesn't apply in numerous cases, such as various
* compositing modes, where effects are applied and very large glyphs.
*
* @defaultValue FontSmoothingType.LCD
* @since JavaFX 2.2
*/
private ObjectProperty fontSmoothingType;
public final void setFontSmoothingType(FontSmoothingType value) {
fontSmoothingTypeProperty().set(value);
}
public final FontSmoothingType getFontSmoothingType() {
return (this.fontSmoothingType != null)
? this.fontSmoothingType.get()
: DEFAULT_FONT_SMOOTHING_TYPE;
}
public final ObjectProperty fontSmoothingTypeProperty() {
if (this.fontSmoothingType == null) {
this.fontSmoothingType = new StyleableObjectProperty(DEFAULT_FONT_SMOOTHING_TYPE) {
@Override
public void invalidated() {
Toolkit.getToolkit().checkFxUserThread();
page.setFontSmoothingType(get().ordinal());
}
@Override
public CssMetaData getCssMetaData() {
return StyleableProperties.FONT_SMOOTHING_TYPE;
}
@Override
public Object getBean() {
return WebView.this;
}
@Override
public String getName() {
return "fontSmoothingType";
}
};
}
return this.fontSmoothingType;
}
/**
* Specifies whether context menu is enabled.
*
* @defaultValue true
* @since JavaFX 2.2
*/
private BooleanProperty contextMenuEnabled;
public final void setContextMenuEnabled(boolean value) {
contextMenuEnabledProperty().set(value);
}
public final boolean isContextMenuEnabled() {
return contextMenuEnabled == null
? DEFAULT_CONTEXT_MENU_ENABLED
: contextMenuEnabled.get();
}
public final BooleanProperty contextMenuEnabledProperty() {
if (contextMenuEnabled == null) {
contextMenuEnabled = new StyleableBooleanProperty(DEFAULT_CONTEXT_MENU_ENABLED) {
@Override public void invalidated() {
Toolkit.getToolkit().checkFxUserThread();
page.setContextMenuEnabled(get());
}
@Override public CssMetaData getCssMetaData() {
return StyleableProperties.CONTEXT_MENU_ENABLED;
}
@Override public Object getBean() {
return WebView.this;
}
@Override public String getName() {
return "contextMenuEnabled";
}
};
}
return contextMenuEnabled;
}
/**
* Super-lazy instantiation pattern from Bill Pugh.
*/
private static final class StyleableProperties {
private static final CssMetaData CONTEXT_MENU_ENABLED
= new CssMetaData(
"-fx-context-menu-enabled",
BooleanConverter.getInstance(),
DEFAULT_CONTEXT_MENU_ENABLED)
{
@Override public boolean isSettable(WebView view) {
return view.contextMenuEnabled == null || !view.contextMenuEnabled.isBound();
}
@Override public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.contextMenuEnabledProperty();
}
};
private static final CssMetaData FONT_SMOOTHING_TYPE
= new CssMetaData(
"-fx-font-smoothing-type",
new EnumConverter(FontSmoothingType.class),
DEFAULT_FONT_SMOOTHING_TYPE) {
@Override
public boolean isSettable(WebView view) {
return view.fontSmoothingType == null || !view.fontSmoothingType.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.fontSmoothingTypeProperty();
}
};
private static final CssMetaData ZOOM
= new CssMetaData(
"-fx-zoom",
SizeConverter.getInstance(),
DEFAULT_ZOOM) {
@Override public boolean isSettable(WebView view) {
return view.zoom == null || !view.zoom.isBound();
}
@Override public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.zoomProperty();
}
};
private static final CssMetaData FONT_SCALE
= new CssMetaData(
"-fx-font-scale",
SizeConverter.getInstance(),
DEFAULT_FONT_SCALE) {
@Override
public boolean isSettable(WebView view) {
return view.fontScale == null || !view.fontScale.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.fontScaleProperty();
}
};
private static final CssMetaData MIN_WIDTH
= new CssMetaData(
"-fx-min-width",
SizeConverter.getInstance(),
DEFAULT_MIN_WIDTH) {
@Override
public boolean isSettable(WebView view) {
return view.minWidth == null || !view.minWidth.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.minWidthProperty();
}
};
private static final CssMetaData MIN_HEIGHT
= new CssMetaData(
"-fx-min-height",
SizeConverter.getInstance(),
DEFAULT_MIN_HEIGHT) {
@Override
public boolean isSettable(WebView view) {
return view.minHeight == null || !view.minHeight.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.minHeightProperty();
}
};
private static final CssMetaData MAX_WIDTH
= new CssMetaData(
"-fx-max-width",
SizeConverter.getInstance(),
DEFAULT_MAX_WIDTH) {
@Override
public boolean isSettable(WebView view) {
return view.maxWidth == null || !view.maxWidth.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.maxWidthProperty();
}
};
private static final CssMetaData MAX_HEIGHT
= new CssMetaData(
"-fx-max-height",
SizeConverter.getInstance(),
DEFAULT_MAX_HEIGHT) {
@Override
public boolean isSettable(WebView view) {
return view.maxHeight == null || !view.maxHeight.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.maxHeightProperty();
}
};
private static final CssMetaData PREF_WIDTH
= new CssMetaData(
"-fx-pref-width",
SizeConverter.getInstance(),
DEFAULT_PREF_WIDTH) {
@Override
public boolean isSettable(WebView view) {
return view.prefWidth == null || !view.prefWidth.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.prefWidthProperty();
}
};
private static final CssMetaData PREF_HEIGHT
= new CssMetaData(
"-fx-pref-height",
SizeConverter.getInstance(),
DEFAULT_PREF_HEIGHT) {
@Override
public boolean isSettable(WebView view) {
return view.prefHeight == null || !view.prefHeight.isBound();
}
@Override
public StyleableProperty getStyleableProperty(WebView view) {
return (StyleableProperty)view.prefHeightProperty();
}
};
private static final List> STYLEABLES;
static {
List> styleables
= new ArrayList>(Parent.getClassCssMetaData());
styleables.add(CONTEXT_MENU_ENABLED);
styleables.add(FONT_SMOOTHING_TYPE);
styleables.add(ZOOM);
styleables.add(FONT_SCALE);
styleables.add(MIN_WIDTH);
styleables.add(PREF_WIDTH);
styleables.add(MAX_WIDTH);
styleables.add(MIN_HEIGHT);
styleables.add(PREF_HEIGHT);
styleables.add(MAX_HEIGHT);
STYLEABLES = Collections.unmodifiableList(styleables);
}
}
/**
* @return The CssMetaData associated with this class, which may include the
* CssMetaData of its superclasses.
* @since JavaFX 8.0
*/
public static List> getClassCssMetaData() {
return StyleableProperties.STYLEABLES;
}
/**
* {@inheritDoc}
* @since JavaFX 8.0
*/
@Override
public List> getCssMetaData() {
return getClassCssMetaData();
}
// event handling
// To handle stage pulse we need to know if currently webview and
// tree is visible or not
private boolean isTreeReallyVisible() {
if (getScene() == null) {
return false;
}
final Window window = getScene().getWindow();
if (window == null) {
return false;
}
boolean iconified = (window instanceof Stage) ? ((Stage)window).isIconified() : false;
return NodeHelper.isTreeVisible(this)
&& window.isShowing()
&& window.getWidth() > 0
&& window.getHeight() > 0
&& !iconified;
}
private void handleStagePulse() {
// The stage pulse occurs before the scene pulse.
// Here the page content is updated before CSS/Layout/Sync pass
// is initiated by the scene pulse. The update may
// change the WebView children and, if so, the children should be
// processed right away during the scene pulse.
// The WebView node does not render its pending render queues
// while it is invisible. Therefore, we should not schedule new
// render queues while the WebView is invisible to prevent
// the list of render queues from growing infinitely.
// Also, if and when the WebView becomes invisible, the currently
// pending render queues, if any, become obsolete and should be
// discarded.
if (page == null) return;
boolean reallyVisible = isTreeReallyVisible();
if (reallyVisible) {
if (page.isDirty()) {
SceneHelper.setAllowPGAccess(true);
final NGWebView peer = NodeHelper.getPeer(this);
peer.update(); // creates new render queues
if (page.isRepaintPending()) {
NodeHelper.markDirty(this, DirtyBits.WEBVIEW_VIEW);
}
SceneHelper.setAllowPGAccess(false);
}
} else {
page.dropRenderFrames();
}
}
private void processMouseEvent(MouseEvent ev) {
if (page == null) {
return;
}
// RT-24511
EventType type = ev.getEventType();
double x = ev.getX();
double y = ev.getY();
double screenX = ev.getScreenX();
double screenY = ev.getScreenY();
if (type == MouseEvent.MOUSE_EXITED) {
type = MouseEvent.MOUSE_MOVED;
x = Short.MIN_VALUE;
y = Short.MIN_VALUE;
Point2D screenPoint = localToScreen(x, y);
if (screenPoint == null) {
return;
}
screenX = screenPoint.getX();
screenY = screenPoint.getY();
}
final Integer id = ID_MAP.get(type);
final Integer button = ID_MAP.get(ev.getButton());
if (id == null || button == null) {
// not supported by webkit
return;
}
final int buttonMask = ((ev.isPrimaryButtonDown() ? WCMouseEvent.BUTTON1 : WCMouseEvent.NOBUTTON) |
(ev.isMiddleButtonDown() ? WCMouseEvent.BUTTON2 : WCMouseEvent.NOBUTTON) |
(ev.isSecondaryButtonDown() ? WCMouseEvent.BUTTON3 : WCMouseEvent.NOBUTTON));
WCMouseEvent mouseEvent =
new WCMouseEvent(id, button,
ev.getClickCount(), (int) x, (int) y,
(int) screenX, (int) screenY,
System.currentTimeMillis(),
ev.isShiftDown(), ev.isControlDown(), ev.isAltDown(),
ev.isMetaDown(), ev.isPopupTrigger(), buttonMask);
page.dispatchMouseEvent(mouseEvent);
ev.consume();
}
private void processScrollEvent(ScrollEvent ev) {
if (page == null) {
return;
}
double dx = - ev.getDeltaX() * getFontScale() * getScaleX();
double dy = - ev.getDeltaY() * getFontScale() * getScaleY();
WCMouseWheelEvent wheelEvent =
new WCMouseWheelEvent((int)ev.getX(), (int)ev.getY(),
(int)ev.getScreenX(), (int)ev.getScreenY(),
System.currentTimeMillis(),
ev.isShiftDown(), ev.isControlDown(), ev.isAltDown(),
ev.isMetaDown(), (float)dx, (float)dy);
page.dispatchMouseWheelEvent(wheelEvent);
ev.consume();
}
private void processKeyEvent(KeyEvent ev) {
if (page == null) return;
String text = null;
String keyIdentifier = null;
int windowsVirtualKeyCode = 0;
if(ev.getEventType() == KeyEvent.KEY_TYPED) {
text = ev.getCharacter();
} else {
KeyCodeMap.Entry keyCodeEntry = KeyCodeMap.lookup(ev.getCode());
keyIdentifier = keyCodeEntry.getKeyIdentifier();
windowsVirtualKeyCode = keyCodeEntry.getWindowsVirtualKeyCode();
}
WCKeyEvent keyEvent = new WCKeyEvent(
ID_MAP.get(ev.getEventType()),
text,
keyIdentifier,
windowsVirtualKeyCode,
ev.isShiftDown(), ev.isControlDown(),
ev.isAltDown(), ev.isMetaDown(), System.currentTimeMillis());
if (page.dispatchKeyEvent(keyEvent)) {
ev.consume();
}
}
private InputMethodClientImpl getInputMethodClient() {
if (imClient == null) {
synchronized (this) {
if (imClient == null) {
imClient = new InputMethodClientImpl(this, page);
}
}
}
return imClient;
}
private void processInputMethodEvent(InputMethodEvent ie) {
if (page == null) {
return;
}
if (!getInputMethodClient().getInputMethodState()) {
ie.consume();
return;
}
WCInputMethodEvent imEvent = InputMethodClientImpl.convertToWCInputMethodEvent(ie);
if (page.dispatchInputMethodEvent(imEvent)) {
ie.consume();
return;
}
}
private static final int WK_DND_ACTION_NONE = 0x0;
private static final int WK_DND_ACTION_COPY = 0x1;
private static final int WK_DND_ACTION_MOVE = 0x2;
private static final int WK_DND_ACTION_LINK = 0x40000000;
private static int getWKDndEventType(EventType et) {
int commandId = 0;
if (et == DragEvent.DRAG_ENTERED)
commandId = WebPage.DND_DST_ENTER;
else if (et == DragEvent.DRAG_EXITED)
commandId = WebPage.DND_DST_EXIT;
else if (et == DragEvent.DRAG_OVER)
commandId = WebPage.DND_DST_OVER;
else if (et == DragEvent.DRAG_DROPPED)
commandId = WebPage.DND_DST_DROP;
return commandId;
}
private static int getWKDndAction(TransferMode... tms) {
int dndActionId = WK_DND_ACTION_NONE;
for (TransferMode tm : tms) {
if (tm == TransferMode.COPY)
dndActionId |= WK_DND_ACTION_COPY;
else if (tm == TransferMode.MOVE)
dndActionId |= WK_DND_ACTION_MOVE;
else if (tm == TransferMode.LINK)
dndActionId |= WK_DND_ACTION_LINK;
}
return dndActionId;
}
private static TransferMode[] getFXDndAction(int wkDndAction) {
LinkedList tms = new LinkedList();
if ((wkDndAction & WK_DND_ACTION_COPY) != 0)
tms.add(TransferMode.COPY);
if ((wkDndAction & WK_DND_ACTION_MOVE) != 0)
tms.add(TransferMode.MOVE);
if ((wkDndAction & WK_DND_ACTION_LINK) != 0)
tms.add(TransferMode.LINK);
return tms.toArray(new TransferMode[0]);
}
private LinkedList mimes;
private LinkedList values;
private void registerEventHandlers() {
addEventHandler(KeyEvent.ANY,
event -> {
processKeyEvent(event);
});
addEventHandler(MouseEvent.ANY,
event -> {
processMouseEvent(event);
if (event.isDragDetect() && !page.isDragConfirmed()) {
//postpone drag recognition:
//Webkit cannot resolve here is it a drag
//or selection.
event.setDragDetect(false);
}
});
addEventHandler(ScrollEvent.SCROLL,
event -> {
processScrollEvent(event);
});
setOnInputMethodTextChanged(
event -> {
processInputMethodEvent(event);
});
//Drop target implementation:
EventHandler destHandler = event -> {
try {
Dragboard db = event.getDragboard();
if (mimes == null || values == null) {
mimes = new LinkedList<>();
values = new LinkedList<>();
for (DataFormat df : db.getContentTypes()) {
//TODO: extend to non-string serialized values.
//Please, look at the native code.
Object content = db.getContent(df);
if (content != null) {
for (String mime : df.getIdentifiers()) {
mimes.add(mime);
values.add(content.toString());
}
}
}
}
if (!mimes.isEmpty()) {
int wkDndEventType = getWKDndEventType(event.getEventType());
int wkDndAction = page.dispatchDragOperation(
wkDndEventType,
mimes.toArray(new String[0]), values.toArray(new String[0]),
(int)event.getX(), (int)event.getY(),
(int)event.getScreenX(), (int)event.getScreenY(),
getWKDndAction(db.getTransferModes().toArray(new TransferMode[0])));
//we cannot accept nothing on drop (we skip FX exception)
if (!(wkDndEventType == WebPage.DND_DST_DROP && wkDndAction == WK_DND_ACTION_NONE)) {
event.acceptTransferModes(getFXDndAction(wkDndAction));
}
event.consume();
}
} catch (SecurityException ex) {
// Just ignore the exception
//ex.printStackTrace();
}
};
setOnDragEntered(destHandler);
setOnDragExited(destHandler);
setOnDragOver(destHandler);
setOnDragDropped(destHandler);
//Drag source implementation:
setOnDragDetected(event -> {
if (page.isDragConfirmed()) {
mimes = null;
values = null;
page.confirmStartDrag();
event.consume();
}
});
setOnDragDone(event -> {
mimes = null;
values = null;
page.dispatchDragOperation(
WebPage.DND_SRC_DROP,
null, null,
(int)event.getX(), (int)event.getY(),
(int)event.getScreenX(), (int)event.getScreenY(),
getWKDndAction(event.getAcceptedTransferMode()));
event.consume();
});
setInputMethodRequests(getInputMethodClient());
}
/*
* Note: This method MUST only be called via its accessor method.
*/
private void doPickNodeLocal(PickRay pickRay, PickResultChooser result) {
NodeHelper.intersects(this, pickRay, result);
}
@Override protected ObservableList getChildren() {
return super.getChildren();
}
// Node stuff
/*
* Note: This method MUST only be called via its accessor method.
*/
private NGNode doCreatePeer() {
return new NGWebView();
}
/*
* Note: This method MUST only be called via its accessor method.
*/
private BaseBounds doComputeGeomBounds(BaseBounds bounds, BaseTransform tx) {
bounds.deriveWithNewBounds(0, 0, 0, (float) getWidth(), (float)getHeight(), 0);
tx.transform(bounds, bounds);
return bounds;
}
/*
* Note: This method MUST only be called via its accessor method.
*/
private void doTransformsChanged() {
}
/*
* Note: This method MUST only be called via its accessor method.
*/
private boolean doComputeContains(double localX, double localY) {
// Note: Local bounds contain test is already done by the caller. (Node.contains()).
return true;
}
/*
* Note: This method MUST only be called via its accessor method.
*/
private void doUpdatePeer() {
final NGWebView peer = NodeHelper.getPeer(this);
if (NodeHelper.isDirty(this, DirtyBits.NODE_CONTENTS)) {
peer.setPage(page);
}
if (NodeHelper.isDirty(this, DirtyBits.NODE_GEOMETRY)) {
peer.resize((float)getWidth(), (float)getHeight());
}
if (NodeHelper.isDirty(this, DirtyBits.WEBVIEW_VIEW)) {
peer.requestRender();
}
}
static {
WebViewHelper.setWebViewAccessor(new WebViewHelper.WebViewAccessor() {
@Override
public NGNode doCreatePeer(Node node) {
return ((WebView) node).doCreatePeer();
}
@Override
public void doUpdatePeer(Node node) {
((WebView) node).doUpdatePeer();
}
@Override
public void doTransformsChanged(Node node) {
((WebView) node).doTransformsChanged();
}
@Override
public BaseBounds doComputeGeomBounds(Node node,
BaseBounds bounds, BaseTransform tx) {
return ((WebView) node).doComputeGeomBounds(bounds, tx);
}
@Override
public boolean doComputeContains(Node node, double localX, double localY) {
return ((WebView) node).doComputeContains(localX, localY);
}
@Override
public void doPickNodeLocal(Node node, PickRay localPickRay,
PickResultChooser result) {
((WebView) node).doPickNodeLocal(localPickRay, result);
}
});
}
}