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Diffstat (limited to 'awt/java/awt/Dispatcher.java')
| -rw-r--r-- | awt/java/awt/Dispatcher.java | 723 |
1 files changed, 0 insertions, 723 deletions
diff --git a/awt/java/awt/Dispatcher.java b/awt/java/awt/Dispatcher.java deleted file mode 100644 index d457af4..0000000 --- a/awt/java/awt/Dispatcher.java +++ /dev/null @@ -1,723 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You 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. - */ -/** - * @author Michael Danilov, Dmitry A. Durnev - * @version $Revision$ - */ -package java.awt; - -import java.awt.event.ComponentEvent; -import java.awt.event.FocusEvent; -import java.awt.event.InputEvent; -import java.awt.event.KeyEvent; -import java.awt.event.MouseEvent; -import java.awt.event.PaintEvent; -import java.awt.event.WindowEvent; - -import org.apache.harmony.awt.internal.nls.Messages; -import org.apache.harmony.awt.wtk.NativeEvent; -import org.apache.harmony.awt.wtk.NativeWindow; - - -/** - * Helper package-private class for managing lightweight components & - * dispatching events from heavyweight source - */ -class Dispatcher { - - //???AWT: final PopupDispatcher popupDispatcher = new PopupDispatcher(); - - //???AWT: final FocusDispatcher focusDispatcher; - - final MouseGrabManager mouseGrabManager = new MouseGrabManager(); - - final MouseDispatcher mouseDispatcher; - - private final ComponentDispatcher componentDispatcher = new ComponentDispatcher(); - - private final KeyDispatcher keyDispatcher = new KeyDispatcher(); - - private final Toolkit toolkit; - - int clickInterval = 250; - - /** - * @param toolkit - AWT toolkit - */ - Dispatcher(Toolkit toolkit) { - this.toolkit = toolkit; - - //???AWT: focusDispatcher = new FocusDispatcher(toolkit); - mouseDispatcher = new MouseDispatcher(mouseGrabManager, toolkit); - } - - /** - * Dispatch native event: produce appropriate AWT events, - * update component's fields when needed - * @param event - native event to dispatch - * @return - true means default processing by OS is not needed - */ - public boolean onEvent(NativeEvent event) { - int eventId = event.getEventId(); - - if (eventId == NativeEvent.ID_CREATED) { - return toolkit.onWindowCreated(event.getWindowId()); - } else if (eventId == NativeEvent.ID_MOUSE_GRAB_CANCELED) { - return mouseGrabManager.onGrabCanceled(); - //???AWT -// } else if (popupDispatcher.onEvent(event)) { -// return false; - } else { - Component src = toolkit.getComponentById(event.getWindowId()); - - if (src != null) { - if (((eventId >= ComponentEvent.COMPONENT_FIRST) && (eventId <= ComponentEvent.COMPONENT_LAST)) - || ((eventId >= WindowEvent.WINDOW_FIRST) && (eventId <= WindowEvent.WINDOW_LAST)) - || (eventId == NativeEvent.ID_INSETS_CHANGED) - || (eventId == NativeEvent.ID_BOUNDS_CHANGED) - || (eventId == NativeEvent.ID_THEME_CHANGED)) { - return componentDispatcher.dispatch(src, event); - } else if ((eventId >= MouseEvent.MOUSE_FIRST) - && (eventId <= MouseEvent.MOUSE_LAST)) { - return mouseDispatcher.dispatch(src, event); - } else if (eventId == PaintEvent.PAINT) { - //???AWT: src.redrawManager.addPaintRegion(src, event.getClipRects()); - return true; - } - } - if ((eventId >= FocusEvent.FOCUS_FIRST) - && (eventId <= FocusEvent.FOCUS_LAST)) { - - //???AWT: return focusDispatcher.dispatch(src, event); - return false; - } else if ((eventId >= KeyEvent.KEY_FIRST) - && (eventId <= KeyEvent.KEY_LAST)) { - return keyDispatcher.dispatch(src, event); - } - } - - return false; - } - - /** - * The dispatcher of native events that affect - * component's state or bounds - */ - final class ComponentDispatcher { - - /** - * Handle native event that affects component's state or bounds - * @param src - the component updated by the event - * @param event - the native event - * @return - as in Dispatcher.onEvent() - * @see Dispatcher#onEvent(NativeEvent) - */ - boolean dispatch(Component src, NativeEvent event) { - int id = event.getEventId(); - - if ((id == NativeEvent.ID_INSETS_CHANGED) - || (id == NativeEvent.ID_THEME_CHANGED)) { - return dispatchInsets(event, src); - } else if ((id >= WindowEvent.WINDOW_FIRST) - && (id <= WindowEvent.WINDOW_LAST)) { - return dispatchWindow(event, src); - } else { - return dispatchPureComponent(event, src); - } - } - - /** - * Handle the change of top-level window's native decorations - * @param event - the native event - * @param src - the component updated by the event - * @return - as in Dispatcher.onEvent() - * @see Dispatcher#onEvent(NativeEvent) - */ - boolean dispatchInsets(NativeEvent event, Component src) { - //???AWT - /* - if (src instanceof Window) { - ((Window) src).setNativeInsets(event.getInsets()); - } - */ - return false; - } - - /** - * Handle the change of top-level window's state - * @param event - the native event - * @param src - the component updated by the event - * @return - as in Dispatcher.onEvent() - * @see Dispatcher#onEvent(NativeEvent) - */ - boolean dispatchWindow(NativeEvent event, Component src) { - //???AWT - /* - Window window = (Window) src; - int id = event.getEventId(); - - if (id == WindowEvent.WINDOW_CLOSING) { - toolkit.getSystemEventQueueImpl().postEvent( - new WindowEvent(window, WindowEvent.WINDOW_CLOSING)); - - return true; - } else if (id == WindowEvent.WINDOW_STATE_CHANGED) { - if (window instanceof Frame) { - ((Frame) window) - .updateExtendedState(event.getWindowState()); - } - } - */ - - return false; - } - - /** - * Handle the change of component's size and/or position - * @param event - the native event - * @param src - the component updated by the event - * @return - as in Dispatcher.onEvent() - * @see Dispatcher#onEvent(NativeEvent) - */ - private boolean dispatchPureComponent(NativeEvent event, Component src) { - Rectangle rect = event.getWindowRect(); - Point loc = rect.getLocation(); - int mask; - - switch (event.getEventId()) { - case NativeEvent.ID_BOUNDS_CHANGED: - mask = 0; - break; - case ComponentEvent.COMPONENT_MOVED: - mask = NativeWindow.BOUNDS_NOSIZE; - break; - case ComponentEvent.COMPONENT_RESIZED: - mask = NativeWindow.BOUNDS_NOMOVE; - break; - default: - // awt.12E=Unknown component event id. - throw new RuntimeException(Messages.getString("awt.12E")); //$NON-NLS-1$ - } - - //???AWT - /* - if (!(src instanceof Window)) { - Component compTo = src.getParent(); - Component compFrom = src.getHWAncestor(); - - if ((compTo != null) && (compFrom != null)) { - loc = MouseDispatcher.convertPoint(compFrom, loc, compTo); - } - } else { - int windowState = event.getWindowState(); - - if ((windowState >= 0) && (src instanceof Frame)) { - ((Frame) src).updateExtendedState(windowState); - } - } - src.setBounds(loc.x, loc.y, rect.width, rect.height, mask, false); - */ - - return false; - } - - } - - /** - * The dispatcher of the keyboard events - */ - final class KeyDispatcher { - - /** - * Handle the keyboard event using the KeyboardFocusManager - * @param src - the component receiving the event - * @param event - the native event - * @return - as in Dispatcher.onEvent() - * @see Dispatcher#onEvent(NativeEvent) - */ - boolean dispatch(Component src, NativeEvent event) { - int id = event.getEventId(); - int modifiers = event.getInputModifiers(); - int location = event.getKeyLocation(); - int code = event.getVKey(); - StringBuffer chars = event.getKeyChars(); - int charsLength = chars.length(); - long time = event.getTime(); - char keyChar = event.getLastChar(); - - //???AWT - /* - if (src == null) { - //retarget focus proxy key events to focusOwner: - Window focusProxyOwner = toolkit.getFocusProxyOwnerById(event - .getWindowId()); - if (focusProxyOwner == null) { - return false; - } - src = KeyboardFocusManager.actualFocusOwner; - } - */ - - EventQueue eventQueue = toolkit.getSystemEventQueueImpl(); - - if (src != null) { - eventQueue.postEvent(new KeyEvent(src, id, time, modifiers, - code, keyChar, location)); - // KEY_TYPED goes after KEY_PRESSED - if (id == KeyEvent.KEY_PRESSED) { - for (int i = 0; i < charsLength; i++) { - keyChar = chars.charAt(i); - if (keyChar != KeyEvent.CHAR_UNDEFINED) { - eventQueue.postEvent(new KeyEvent(src, - KeyEvent.KEY_TYPED, time, modifiers, - KeyEvent.VK_UNDEFINED, keyChar, - KeyEvent.KEY_LOCATION_UNKNOWN)); - } - } - } - } - - return false; - } - - } - - /** - * Retargets the mouse events to the grab owner when mouse is grabbed, - * grab and ungrab mouse when mouse buttons are pressed and released - */ - - static final class MouseGrabManager { - - /** - * The top-level window holding the mouse grab - * that was explicitly started by startGrab() method - */ - //???AWT: private Window nativeGrabOwner = null; - /** - * The component that owns the synthetic - * mouse grab while at least one of the - * mouse buttons is pressed - */ - private Component syntheticGrabOwner = null; - - /** - * Previous value of syntheticGrabOwner - */ - private Component lastSyntheticGrabOwner = null; - - /** - * Number of mouse buttons currently pressed - */ - private int syntheticGrabDepth = 0; - - /** - * The callback to be called when the explicit mouse grab ends - */ - private Runnable whenCanceled; - - /** - * Explicitly start the mouse grab - * @param grabWindow - the window that will own the grab - * @param whenCanceled - the callback to call when the grab ends. - * This parameter can be null - */ - //???AWT - /* - void startGrab(Window grabWindow, Runnable whenCanceled) { - - if (nativeGrabOwner != null) { - // awt.12F=Attempt to start nested mouse grab - throw new RuntimeException(Messages.getString("awt.12F")); //$NON-NLS-1$ - } - - NativeWindow win = grabWindow.getNativeWindow(); - if (win == null) { - // awt.130=Attempt to grab mouse in not displayable window - throw new RuntimeException(Messages.getString("awt.130")); //$NON-NLS-1$ - } - - nativeGrabOwner = grabWindow; - this.whenCanceled = whenCanceled; - win.grabMouse(); - } - */ - - /** - * Ends the explicit mouse grab. If the non-null callback was provided - * in the startGrab() method, this callback is called - */ - void endGrab() { - //???AWT - /* - if (nativeGrabOwner == null) { - return; - } - - Window grabWindow = nativeGrabOwner; - nativeGrabOwner = null; - NativeWindow win = grabWindow.getNativeWindow(); - - if (win != null) { - win.ungrabMouse(); - if (whenCanceled != null) { - whenCanceled.run(); - whenCanceled = null; - } - } - */ - } - - /** - * Ends both explicit and synthetic grans - * @return - always returns false - */ - boolean onGrabCanceled() { - endGrab(); - resetSyntheticGrab(); - - return false; - } - - /** - * Starts the synthetic mouse grab, increases the counter - * of currently pressed mouse buttons - * @param source - the component where mouse press event occured - * @return - the component that owns the synthetic grab - */ - Component onMousePressed(Component source) { - if (syntheticGrabDepth == 0) { - syntheticGrabOwner = source; - lastSyntheticGrabOwner = source; - } - syntheticGrabDepth++; - - return syntheticGrabOwner; - } - - /** - * Decreases the counter of currently pressed mouse buttons, - * ends the synthetic mouse grab, when this counter becomes zero - * @param source - the component where mouse press event occured - * @return - the component that owns the synthetic grab, - * or source parameter if mouse grab was released - */ - Component onMouseReleased(Component source) { - Component ret = source; - - //???AWT - /* - if (syntheticGrabOwner != null && nativeGrabOwner == null) { - ret = syntheticGrabOwner; - } - */ - syntheticGrabDepth--; - if (syntheticGrabDepth <= 0) { - resetSyntheticGrab(); - lastSyntheticGrabOwner = null; - } - - return ret; - } - - /** - * Update the state of synthetic ouse gram - * when the mouse is moved/dragged - * @param event - the native event - */ - void preprocessEvent(NativeEvent event) { - int id = event.getEventId(); - switch (id) { - case MouseEvent.MOUSE_MOVED: - if (syntheticGrabOwner != null) { - syntheticGrabOwner = null; - syntheticGrabDepth = 0; - } - if (lastSyntheticGrabOwner != null) { - lastSyntheticGrabOwner = null; - } - case MouseEvent.MOUSE_DRAGGED: - if (syntheticGrabOwner == null - && lastSyntheticGrabOwner != null) { - syntheticGrabOwner = lastSyntheticGrabOwner; - syntheticGrabDepth = 0; - int mask = event.getInputModifiers(); - syntheticGrabDepth += (mask & InputEvent.BUTTON1_DOWN_MASK) != 0 ? 1 - : 0; - syntheticGrabDepth += (mask & InputEvent.BUTTON2_DOWN_MASK) != 0 ? 1 - : 0; - syntheticGrabDepth += (mask & InputEvent.BUTTON3_DOWN_MASK) != 0 ? 1 - : 0; - } - } - } - - /** - * @return the component that currently owns the synthetic grab - */ - Component getSyntheticGrabOwner() { - return syntheticGrabOwner; - } - - /** - * ends synthetic grab - */ - private void resetSyntheticGrab() { - syntheticGrabOwner = null; - syntheticGrabDepth = 0; - } - - } - - /** - * Dispatches native events related to the pop-up boxes - * (the non-component windows such as menus and drop lists) - */ -// final class PopupDispatcher { -// -// private PopupBox activePopup; -// -// private PopupBox underCursor; -// -// private final MouseGrab grab = new MouseGrab(); -// -// /** -// * Handles the mouse grab for pop-up boxes -// */ -// private final class MouseGrab { -// private int depth; -// -// private PopupBox owner; -// -// private final Point start = new Point(); -// -// /** -// * Starts the grab when mouse is pressed -// * @param src - the pop-up box where mouse event has occured -// * @param where - the mouse pointer location -// * @return - the grab owner -// */ -// PopupBox mousePressed(PopupBox src, Point where) { -// if (depth == 0) { -// owner = src; -// start.setLocation(where); -// } -// depth++; -// return owner; -// } -// -// /** -// * Ends the grab when all mousebuttons are released -// * @param src - the pop-up box where mouse event has occured -// * @param where - the mouse pointer location -// * @return - the grab owner, or src parameter if the grab has ended -// */ -// PopupBox mouseReleased(PopupBox src, Point where) { -// PopupBox ret = (owner != null) ? owner : src; -// if (depth == 0) { -// return ret; -// } -// depth--; -// if (depth == 0) { -// PopupBox tgt = owner; -// owner = null; -// if (tgt != null && src == null) { -// Point a = new Point(start); -// Point b = new Point(where); -// Point pos = tgt.getScreenLocation(); -// a.translate(-pos.x, -pos.y); -// b.translate(-pos.x, -pos.y); -// if (tgt.closeOnUngrab(a, b)) { -// return null; -// } -// } -// } -// return ret; -// } -// -// /** -// * Set the grab owner to null -// */ -// void reset() { -// depth = 0; -// owner = null; -// start.setLocation(0, 0); -// } -// -// /** -// * @return - the pop-up box currently owning the grab -// */ -// public PopupBox getOwner() { -// return owner; -// } -// } -// -// /** -// * Call the mouse event handler of the pop-up box -// * @param src - the pop-up box where the mouse event occured -// * @param eventId - the event ID, one of MouseEvent.MOUSE_* constants -// * @param where - the mouse pointer location -// * @param event - native event -// */ -// private void mouseEvent(PopupBox src, int eventId, Point where, -// NativeEvent event) { -// Point pos = src.getScreenLocation(); -// pos.setLocation(where.x - pos.x, where.y - pos.y); -// -// src.onMouseEvent(eventId, pos, event.getMouseButton(), event -// .getTime(), event.getInputModifiers(), event -// .getWheelRotation()); -// } -// -// /** -// * Handle the native event targeted by a pop-up box. This could be -// * paint event, mouse or keyboard event. -// * @param event - the native event -// * @return - false if the event was handled and doesn't -// * need the further processing; true when the further -// * processing is needed -// */ -// boolean onEvent(NativeEvent event) { -// PopupBox src = toolkit.getPopupBoxById(event.getWindowId()); -// int id = event.getEventId(); -// -// if ((id == PaintEvent.PAINT)) { -// if (src != null) { -// src.paint(event.getClipRects()); -// return true; -// } -// Component c = toolkit.getComponentById(event.getWindowId()); -// if ((c != null) && (c instanceof Frame)) { -// ((Frame) c).paintMenuBar(event.getClipRects()); -// } -// return false; -// } -// -// if ((id >= MouseEvent.MOUSE_FIRST) && (id <= MouseEvent.MOUSE_LAST)) { -// Point where = event.getScreenPos(); -// -// if (src != underCursor) { -// if (underCursor != null) { -// mouseEvent(underCursor, MouseEvent.MOUSE_EXITED, where, -// event); -// } -// underCursor = src; -// if (underCursor != null) { -// mouseEvent(underCursor, MouseEvent.MOUSE_ENTERED, -// where, event); -// underCursor.setDefaultCursor(); -// } -// } -// if (id == MouseEvent.MOUSE_EXITED) { -// underCursor = null; -// } -// -// if ((activePopup == null) && (src == null || !src.isMenuBar())) { -// return false; -// } -// -// if (id == MouseEvent.MOUSE_PRESSED) { -// src = grab.mousePressed(src, where); -// } else if (id == MouseEvent.MOUSE_RELEASED) { -// src = grab.mouseReleased(src, where); -// } else if (src == null) { -// src = grab.getOwner(); -// } -// -// PopupBox wasActive = activePopup; -// -// if (src != null) { -// mouseEvent(src, id, where, event); -// return src.isMenu() || src.contains(where); -// } -// -// if (wasActive != null && activePopup == null) { -// return wasActive.isMenu(); -// } -// -// if ((id == MouseEvent.MOUSE_PRESSED) -// || (id == MouseEvent.MOUSE_RELEASED)) { -// boolean isMenu = activePopup.isMenu(); -// deactivateAll(); -// return !isMenu; -// } -// return true; -// } -// -// if (activePopup == null) { -// return false; -// } -// -// if ((id >= KeyEvent.KEY_FIRST) && (id <= KeyEvent.KEY_LAST)) { -// boolean isMenu = activePopup.isMenu(); -// activePopup.dispatchKeyEvent(id, event.getVKey(), event -// .getTime(), event.getInputModifiers()); -// -// return isMenu; -// } -// -// return false; -// } -// -// /** -// * Remember the pop-up as active and grab the mouse on it -// * @param popup - the pop-up box to activate -// */ -// void activate(final PopupBox popup) { -// if (activePopup == null) { -// -// activePopup = popup; -// mouseGrabManager.startGrab(popup.getOwner(), new Runnable() { -// public void run() { -// deactivate(popup); -// } -// }); -// } -// } -// -// /** -// * Deactivate the currently active pop-up box -// */ -// void deactivateAll() { -// deactivate(activePopup); -// } -// -// /** -// * Deactivate the pop-up box, end the mouse grab -// */ -// void deactivate(PopupBox popup) { -// grab.reset(); -// -// if (activePopup != null && activePopup == popup) { -// activePopup = null; -// mouseGrabManager.endGrab(); -// popup.hide(); -// underCursor = null; -// } -// } -// -// /** -// * Check that the pop-up box is currently active -// * @param popup - the pop-up box to check -// * @return - true if active -// */ -// boolean isActive(PopupBox popup) { -// return (popup == activePopup) && (popup != null); -// } -// } - -}
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