8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.apple.eawt.event;
27
28 import java.awt.*;
29 import java.util.*;
30 import java.util.List;
31
32 import javax.swing.*;
33
34 import java.lang.annotation.Native;
35
36 final class GestureHandler {
37 private static final String CLIENT_PROPERTY = "com.apple.eawt.event.internalGestureHandler";
38
39 // native constants for the supported types of high-level gestures
40 @Native static final int PHASE = 1;
41 @Native static final int ROTATE = 2;
42 @Native static final int MAGNIFY = 3;
43 @Native static final int SWIPE = 4;
44
45 // installs a private instance of GestureHandler, if necessary
46 static void addGestureListenerTo(final JComponent component, final GestureListener listener) {
47 final Object value = component.getClientProperty(CLIENT_PROPERTY);
53 if (value != null) return; // some other garbage is in our client property
54
55 final GestureHandler newHandler = new GestureHandler();
56 newHandler.addListener(listener);
57 component.putClientProperty(CLIENT_PROPERTY, newHandler);
58 }
59
60 // asks the installed GestureHandler to remove it's listener (does not uninstall the GestureHandler)
61 static void removeGestureListenerFrom(final JComponent component, final GestureListener listener) {
62 final Object value = component.getClientProperty(CLIENT_PROPERTY);
63 if (!(value instanceof GestureHandler)) return;
64 ((GestureHandler)value).removeListener(listener);
65 }
66
67
68 // called from native - finds the deepest component with an installed GestureHandler,
69 // creates a single event, and dispatches it to a recursive notifier
70 static void handleGestureFromNative(final Window window, final int type, final double x, final double y, final double a, final double b) {
71 if (window == null) return; // should never happen...
72
73 EventQueue.invokeLater(new Runnable() {
74 public void run() {
75 final Component component = SwingUtilities.getDeepestComponentAt(window, (int)x, (int)y);
76
77 final PerComponentNotifier firstNotifier;
78 if (component instanceof RootPaneContainer) {
79 firstNotifier = getNextNotifierForComponent(((RootPaneContainer)component).getRootPane());
80 } else {
81 firstNotifier = getNextNotifierForComponent(component);
82 }
83 if (firstNotifier == null) return;
84
85 switch (type) {
86 case PHASE:
87 firstNotifier.recursivelyHandlePhaseChange(a, new GesturePhaseEvent());
88 return;
89 case ROTATE:
90 firstNotifier.recursivelyHandleRotate(new RotationEvent(a));
91 return;
92 case MAGNIFY:
93 firstNotifier.recursivelyHandleMagnify(new MagnificationEvent(a));
|
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.apple.eawt.event;
27
28 import sun.awt.SunToolkit;
29
30 import java.awt.*;
31 import java.util.*;
32 import java.util.List;
33
34 import javax.swing.*;
35
36 import java.lang.annotation.Native;
37
38 final class GestureHandler {
39 private static final String CLIENT_PROPERTY = "com.apple.eawt.event.internalGestureHandler";
40
41 // native constants for the supported types of high-level gestures
42 @Native static final int PHASE = 1;
43 @Native static final int ROTATE = 2;
44 @Native static final int MAGNIFY = 3;
45 @Native static final int SWIPE = 4;
46
47 // installs a private instance of GestureHandler, if necessary
48 static void addGestureListenerTo(final JComponent component, final GestureListener listener) {
49 final Object value = component.getClientProperty(CLIENT_PROPERTY);
55 if (value != null) return; // some other garbage is in our client property
56
57 final GestureHandler newHandler = new GestureHandler();
58 newHandler.addListener(listener);
59 component.putClientProperty(CLIENT_PROPERTY, newHandler);
60 }
61
62 // asks the installed GestureHandler to remove it's listener (does not uninstall the GestureHandler)
63 static void removeGestureListenerFrom(final JComponent component, final GestureListener listener) {
64 final Object value = component.getClientProperty(CLIENT_PROPERTY);
65 if (!(value instanceof GestureHandler)) return;
66 ((GestureHandler)value).removeListener(listener);
67 }
68
69
70 // called from native - finds the deepest component with an installed GestureHandler,
71 // creates a single event, and dispatches it to a recursive notifier
72 static void handleGestureFromNative(final Window window, final int type, final double x, final double y, final double a, final double b) {
73 if (window == null) return; // should never happen...
74
75 SunToolkit.executeOnEventHandlerThread(window, new Runnable() {
76 public void run() {
77 final Component component = SwingUtilities.getDeepestComponentAt(window, (int)x, (int)y);
78
79 final PerComponentNotifier firstNotifier;
80 if (component instanceof RootPaneContainer) {
81 firstNotifier = getNextNotifierForComponent(((RootPaneContainer)component).getRootPane());
82 } else {
83 firstNotifier = getNextNotifierForComponent(component);
84 }
85 if (firstNotifier == null) return;
86
87 switch (type) {
88 case PHASE:
89 firstNotifier.recursivelyHandlePhaseChange(a, new GesturePhaseEvent());
90 return;
91 case ROTATE:
92 firstNotifier.recursivelyHandleRotate(new RotationEvent(a));
93 return;
94 case MAGNIFY:
95 firstNotifier.recursivelyHandleMagnify(new MagnificationEvent(a));
|