/* * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved. * 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 * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.awt.X11; import java.awt.*; import java.awt.peer.*; import java.awt.event.*; import sun.util.logging.PlatformLogger; // FIXME: tab traversal should be disabled when mouse is captured (4816336) // FIXME: key and mouse events should not be delivered to listeners when the Choice is unfurled. Must override handleNativeKey/MouseEvent (4816336) // FIXME: test programmatic add/remove/clear/etc // FIXME: account for unfurling at the edge of the screen // Note: can't set x,y on layout(), 'cause moving the top-level to the // edge of the screen won't call layout(). Just do it on paint, I guess // TODO: make painting more efficient (i.e. when down arrow is pressed, only two items should need to be repainted. public class XChoicePeer extends XComponentPeer implements ChoicePeer, ToplevelStateListener { private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XChoicePeer"); private static final int MAX_UNFURLED_ITEMS = 10; // Maximum number of // items to be displayed // at a time in an // unfurled Choice // Description of these constants in ListHelper public static final int TEXT_SPACE = 1; public static final int BORDER_WIDTH = 1; public static final int ITEM_MARGIN = 1; public static final int SCROLLBAR_WIDTH = 15; // SHARE THESE! private static final Insets focusInsets = new Insets(0,0,0,0); static final int WIDGET_OFFSET = 18; // Stolen from Tiny static final int TEXT_XPAD = 8; static final int TEXT_YPAD = 6; // FIXME: Motif uses a different focus color for the item within // the unfurled Choice list and for when the Choice itself is focused and // popped up. static final Color focusColor = Color.black; // TODO: there is a time value that the mouse is held down. If short // enough, the Choice stays popped down. If long enough, Choice // is furled when the mouse is released private boolean unfurled = false; // Choice list is popped down private boolean dragging = false; // Mouse was pressed and is being // dragged over the (unfurled) // Choice private boolean mouseInSB = false; // Mouse is interacting with the // scrollbar private boolean firstPress = false; // mouse was pressed on // furled Choice so we // not need to furl the // Choice when MOUSE_RELEASED occurred // 6425067. Mouse was pressed on furled choice and dropdown list appeared over Choice itself // and then there were no mouse movements until MOUSE_RELEASE. // This scenario leads to ItemStateChanged as the choice logic uses // MouseReleased event to send ItemStateChanged. To prevent it we should // use a combination of firstPress and wasDragged variables. // The only difference in dragging and wasDragged is: last one will not // set to false on mouse ungrab. It become false after MouseRelased() finishes. private boolean wasDragged = false; private ListHelper helper; private UnfurledChoice unfurledChoice; // TODO: Choice remembers where it was scrolled to when unfurled - it's not // always to the currently selected item. // Indicates whether or not to paint selected item in the choice. // Default is to paint private boolean drawSelectedItem = true; // If set, indicates components under which choice popup should be showed. // The choice's popup width and location should be adjust to appear // under both choice and alignUnder component. private Component alignUnder; // If cursor is outside of an unfurled Choice when the mouse is // released, Choice item should NOT be updated. Remember the proper index. private int dragStartIdx = -1; // Holds the listener (XFileDialogPeer) which the processing events from the choice // See 6240074 for more information private XChoicePeerListener choiceListener; XChoicePeer(Choice target) { super(target); } void preInit(XCreateWindowParams params) { super.preInit(params); Choice target = (Choice)this.target; int numItems = target.getItemCount(); unfurledChoice = new UnfurledChoice(target); getToplevelXWindow().addToplevelStateListener(this); helper = new ListHelper(unfurledChoice, getGUIcolors(), numItems, false, true, false, target.getFont(), MAX_UNFURLED_ITEMS, TEXT_SPACE, ITEM_MARGIN, BORDER_WIDTH, SCROLLBAR_WIDTH); } void postInit(XCreateWindowParams params) { super.postInit(params); Choice target = (Choice)this.target; int numItems = target.getItemCount(); // Add all items for (int i = 0; i < numItems; i++) { helper.add(target.getItem(i)); } if (!helper.isEmpty()) { helper.select(target.getSelectedIndex()); helper.setFocusedIndex(target.getSelectedIndex()); } helper.updateColors(getGUIcolors()); updateMotifColors(getPeerBackground()); } public boolean isFocusable() { return true; } // 6399679. check if super.setBounds() actually changes the size of the // component and then compare current Choice size with a new one. If // they differs then hide dropdown menu public void setBounds(int x, int y, int width, int height, int op) { int oldX = this.x; int oldY = this.y; int oldWidth = this.width; int oldHeight = this.height; super.setBounds(x, y, width, height, op); if (unfurled && (oldX != this.x || oldY != this.y || oldWidth != this.width || oldHeight != this.height) ) { hidePopdownMenu(); } } public void focusGained(FocusEvent e) { // TODO: only need to paint the focus bit super.focusGained(e); repaint(); } /* * Fix for 6246503 : Disabling a choice after selection locks keyboard, mouse and makes the system unusable, Xtoolkit * if setEnabled(false) invoked we should close opened choice in * order to prevent keyboard/mouse lock. */ public void setEnabled(boolean value) { super.setEnabled(value); helper.updateColors(getGUIcolors()); if (!value && unfurled){ hidePopdownMenu(); } } public void focusLost(FocusEvent e) { // TODO: only need to paint the focus bit? super.focusLost(e); repaint(); } void ungrabInputImpl() { if (unfurled) { unfurled = false; dragging = false; mouseInSB = false; unfurledChoice.setVisible(false); } super.ungrabInputImpl(); } void handleJavaKeyEvent(KeyEvent e) { if (e.getID() == KeyEvent.KEY_PRESSED) { keyPressed(e); } } public void keyPressed(KeyEvent e) { switch(e.getKeyCode()) { // UP & DOWN are same if furled or unfurled case KeyEvent.VK_DOWN: case KeyEvent.VK_KP_DOWN: { if (helper.getItemCount() > 1) { helper.down(); int newIdx = helper.getSelectedIndex(); ((Choice)target).select(newIdx); postEvent(new ItemEvent((Choice)target, ItemEvent.ITEM_STATE_CHANGED, ((Choice)target).getItem(newIdx), ItemEvent.SELECTED)); repaint(); } break; } case KeyEvent.VK_UP: case KeyEvent.VK_KP_UP: { if (helper.getItemCount() > 1) { helper.up(); int newIdx = helper.getSelectedIndex(); ((Choice)target).select(newIdx); postEvent(new ItemEvent((Choice)target, ItemEvent.ITEM_STATE_CHANGED, ((Choice)target).getItem(newIdx), ItemEvent.SELECTED)); repaint(); } break; } case KeyEvent.VK_PAGE_DOWN: if (unfurled && !dragging) { int oldIdx = helper.getSelectedIndex(); helper.pageDown(); int newIdx = helper.getSelectedIndex(); if (oldIdx != newIdx) { ((Choice)target).select(newIdx); postEvent(new ItemEvent((Choice)target, ItemEvent.ITEM_STATE_CHANGED, ((Choice)target).getItem(newIdx), ItemEvent.SELECTED)); repaint(); } } break; case KeyEvent.VK_PAGE_UP: if (unfurled && !dragging) { int oldIdx = helper.getSelectedIndex(); helper.pageUp(); int newIdx = helper.getSelectedIndex(); if (oldIdx != newIdx) { ((Choice)target).select(newIdx); postEvent(new ItemEvent((Choice)target, ItemEvent.ITEM_STATE_CHANGED, ((Choice)target).getItem(newIdx), ItemEvent.SELECTED)); repaint(); } } break; case KeyEvent.VK_ESCAPE: case KeyEvent.VK_ENTER: if (unfurled) { if (dragging){ if (e.getKeyCode() == KeyEvent.VK_ESCAPE){ //This also happens on // - MouseButton2,3, etc. press // - ENTER press helper.select(dragStartIdx); } else { //KeyEvent.VK_ENTER: int newIdx = helper.getSelectedIndex(); ((Choice)target).select(newIdx); postEvent(new ItemEvent((Choice)target, ItemEvent.ITEM_STATE_CHANGED, ((Choice)target).getItem(newIdx), ItemEvent.SELECTED)); } } hidePopdownMenu(); dragging = false; wasDragged = false; mouseInSB = false; // See 6240074 for more information if (choiceListener != null){ choiceListener.unfurledChoiceClosing(); } } break; default: if (unfurled) { Toolkit.getDefaultToolkit().beep(); } break; } } public boolean handlesWheelScrolling() { return true; } void handleJavaMouseWheelEvent(MouseWheelEvent e) { if (unfurled && helper.isVSBVisible()) { if (ListHelper.doWheelScroll(helper.getVSB(), null, e)) { repaint(); } } } void handleJavaMouseEvent(MouseEvent e) { super.handleJavaMouseEvent(e); int i = e.getID(); switch (i) { case MouseEvent.MOUSE_PRESSED: mousePressed(e); break; case MouseEvent.MOUSE_RELEASED: mouseReleased(e); break; case MouseEvent.MOUSE_DRAGGED: mouseDragged(e); break; } } public void mousePressed(MouseEvent e) { /* * fix for 5003166: a Choice on XAWT shouldn't react to any * mouse button presses except left. This involves presses on * Choice but not on opened part of choice. */ if (e.getButton() == MouseEvent.BUTTON1){ dragStartIdx = helper.getSelectedIndex(); if (unfurled) { //fix 6259328: PIT: Choice scrolls when dragging the parent frame while drop-down is active, XToolkit if (! (isMouseEventInChoice(e) || unfurledChoice.isMouseEventInside(e))) { hidePopdownMenu(); } // Press on unfurled Choice. Highlight the item under the cursor, // but don't send item event or set the text on the button yet unfurledChoice.trackMouse(e); } else { // Choice is up - unfurl it grabInput(); unfurledChoice.toFront(); firstPress = true; wasDragged = false; unfurled = true; } } } /* * helper method for mouseReleased routine */ void hidePopdownMenu(){ ungrabInput(); unfurledChoice.setVisible(false); unfurled = false; } public void mouseReleased(MouseEvent e) { if (unfurled) { if (mouseInSB) { unfurledChoice.trackMouse(e); } else { // We pressed and dragged onto the Choice, or, this is the // second release after clicking to make the Choice "stick" // unfurled. // This release should ungrab/furl, and set the new item if // release was over the unfurled Choice. // Fix for 6239944 : Choice shouldn't close its // pop-down menu if user presses Mouse on Choice's Scrollbar // some additional cases like releasing mouse outside // of Choice are considered too boolean isMouseEventInside = unfurledChoice.isMouseEventInside( e ); boolean isMouseInListArea = unfurledChoice.isMouseInListArea( e ); // Fixed 6318746: REG: File Selection is failing // We shouldn't restore the selected item // if the mouse was dragged outside the drop-down choice area if (!helper.isEmpty() && !isMouseInListArea && dragging) { // Set the selected item back how it was. ((Choice)target).select(dragStartIdx); } // Choice must be closed if user releases mouse on // pop-down menu on the second click if ( !firstPress && isMouseInListArea) { hidePopdownMenu(); } // Choice must be closed if user releases mouse // outside of Choice's pop-down menu on the second click if ( !firstPress && !isMouseEventInside) { hidePopdownMenu(); } //if user drags Mouse on pop-down menu, Scrollbar or // outside the Choice if ( firstPress && dragging) { hidePopdownMenu(); } /* this could happen when user has opened a Choice and * released mouse button. Then he drags mouse on the * Scrollbar and releases mouse again. */ if ( !firstPress && !isMouseInListArea && isMouseEventInside && dragging) { hidePopdownMenu(); } if (!helper.isEmpty()) { // Only update the Choice if the mouse button is released // over the list of items. if (unfurledChoice.isMouseInListArea(e)) { int newIdx = helper.getSelectedIndex(); if (newIdx >= 0) { // Update the selected item in the target now that // the mouse selection is complete. if (newIdx != dragStartIdx) { ((Choice)target).select(newIdx); // NOTE: We get a repaint when Choice.select() // calls our peer.select(). } if (wasDragged && e.getButton() != MouseEvent.BUTTON1){ ((Choice)target).select(dragStartIdx); } /*fix for 6239941 : Choice triggers ItemEvent when selecting an item with right mouse button, Xtoolkit * We should generate ItemEvent if only * LeftMouseButton used */ if (e.getButton() == MouseEvent.BUTTON1 && (!firstPress || wasDragged )) { postEvent(new ItemEvent((Choice)target, ItemEvent.ITEM_STATE_CHANGED, ((Choice)target).getItem(newIdx), ItemEvent.SELECTED)); } // see 6240074 for more information if (choiceListener != null) { choiceListener.unfurledChoiceClosing(); } } } } // See 6243382 for more information unfurledChoice.trackMouse(e); } } dragging = false; wasDragged = false; firstPress = false; dragStartIdx = -1; } public void mouseDragged(MouseEvent e) { /* * fix for 5003166. On Motif user are unable to drag * mouse inside opened Choice if he drags the mouse with * different from LEFT mouse button ( e.g. RIGHT or MIDDLE). * This fix make impossible to drag mouse inside opened choice * with other mouse buttons rather then LEFT one. */ if ( e.getModifiers() == MouseEvent.BUTTON1_MASK ){ dragging = true; wasDragged = true; unfurledChoice.trackMouse(e); } } // Stolen from TinyChoicePeer @SuppressWarnings("deprecation") public Dimension getMinimumSize() { // TODO: move this impl into ListHelper? FontMetrics fm = getFontMetrics(target.getFont()); Choice c = (Choice)target; int w = 0; for (int i = c.countItems() ; i-- > 0 ;) { w = Math.max(fm.stringWidth(c.getItem(i)), w); } return new Dimension(w + TEXT_XPAD + WIDGET_OFFSET, fm.getMaxAscent() + fm.getMaxDescent() + TEXT_YPAD); } /* * Layout the... */ public void layout() { /* Dimension size = target.getSize(); Font f = target.getFont(); FontMetrics fm = target.getFontMetrics(f); String text = ((Choice)target).getLabel(); textRect.height = fm.getHeight(); checkBoxSize = getChoiceSize(fm); // Note - Motif appears to use an left inset that is slightly // scaled to the checkbox/font size. cbX = borderInsets.left + checkBoxInsetFromText; cbY = size.height / 2 - checkBoxSize / 2; int minTextX = borderInsets.left + 2 * checkBoxInsetFromText + checkBoxSize; // FIXME: will need to account for alignment? // FIXME: call layout() on alignment changes //textRect.width = fm.stringWidth(text); textRect.width = fm.stringWidth(text == null ? "" : text); textRect.x = Math.max(minTextX, size.width / 2 - textRect.width / 2); textRect.y = size.height / 2 - textRect.height / 2 + borderInsets.top; focusRect.x = focusInsets.left; focusRect.y = focusInsets.top; focusRect.width = size.width-(focusInsets.left+focusInsets.right)-1; focusRect.height = size.height-(focusInsets.top+focusInsets.bottom)-1; myCheckMark = AffineTransform.getScaleInstance((double)target.getFont().getSize() / MASTER_SIZE, (double)target.getFont().getSize() / MASTER_SIZE).createTransformedShape(MASTER_CHECKMARK); */ } /** * Paint the choice */ @Override void paintPeer(final Graphics g) { flush(); Dimension size = getPeerSize(); // TODO: when mouse is down over button, widget should be drawn depressed g.setColor(getPeerBackground()); g.fillRect(0, 0, width, height); drawMotif3DRect(g, 1, 1, width-2, height-2, false); drawMotif3DRect(g, width - WIDGET_OFFSET, (height / 2) - 3, 12, 6, false); if (!helper.isEmpty() && helper.getSelectedIndex() != -1) { g.setFont(getPeerFont()); FontMetrics fm = g.getFontMetrics(); String lbl = helper.getItem(helper.getSelectedIndex()); if (lbl != null && drawSelectedItem) { g.setClip(1, 1, width - WIDGET_OFFSET - 2, height); if (isEnabled()) { g.setColor(getPeerForeground()); g.drawString(lbl, 5, (height + fm.getMaxAscent()-fm.getMaxDescent())/2); } else { g.setColor(getPeerBackground().brighter()); g.drawString(lbl, 5, (height + fm.getMaxAscent()-fm.getMaxDescent())/2); g.setColor(getPeerBackground().darker()); g.drawString(lbl, 4, ((height + fm.getMaxAscent()-fm.getMaxDescent())/2)-1); } g.setClip(0, 0, width, height); } } if (hasFocus()) { paintFocus(g,focusInsets.left,focusInsets.top,size.width-(focusInsets.left+focusInsets.right)-1,size.height-(focusInsets.top+focusInsets.bottom)-1); } if (unfurled) { unfurledChoice.repaint(); } flush(); } protected void paintFocus(Graphics g, int x, int y, int w, int h) { g.setColor(focusColor); g.drawRect(x,y,w,h); } /* * ChoicePeer methods stolen from TinyChoicePeer */ public void select(int index) { helper.select(index); helper.setFocusedIndex(index); repaint(); } public void add(String item, int index) { helper.add(item, index); repaint(); } public void remove(int index) { boolean selected = (index == helper.getSelectedIndex()); boolean visibled = (index >= helper.firstDisplayedIndex() && index <= helper.lastDisplayedIndex()); helper.remove(index); if (selected) { if (helper.isEmpty()) { helper.select(-1); } else { helper.select(0); } } /* * Fix for 6248016 * After removing the item of the choice we need to reshape unfurled choice * in order to keep actual bounds of the choice */ /* * condition added only for performance */ if (!unfurled) { // Fix 6292186: PIT: Choice is not refreshed properly when the last item gets removed, XToolkit // We should take into account that there is no 'select' invoking (hence 'repaint') // if the choice is empty (see Choice.java method removeNoInvalidate()) // The condition isn't 'visibled' since it would be cause of the twice repainting if (helper.isEmpty()) { repaint(); } return; } /* * condition added only for performance * the count of the visible items changed */ if (visibled){ Rectangle r = unfurledChoice.placeOnScreen(); unfurledChoice.reshape(r.x, r.y, r.width, r.height); return; } /* * condition added only for performance * the structure of visible items changed * if removable item is non visible and non selected then there is no repaint */ if (visibled || selected){ repaint(); } } public void removeAll() { helper.removeAll(); helper.select(-1); /* * Fix for 6248016 * After removing the item of the choice we need to reshape unfurled choice * in order to keep actual bounds of the choice */ Rectangle r = unfurledChoice.placeOnScreen(); unfurledChoice.reshape(r.x, r.y, r.width, r.height); repaint(); } /** * DEPRECATED: Replaced by add(String, int). */ public void addItem(String item, int index) { add(item, index); } public void setFont(Font font) { super.setFont(font); helper.setFont(this.font); } public void setForeground(Color c) { super.setForeground(c); helper.updateColors(getGUIcolors()); } public void setBackground(Color c) { super.setBackground(c); unfurledChoice.setBackground(c); helper.updateColors(getGUIcolors()); updateMotifColors(c); } public void setDrawSelectedItem(boolean value) { drawSelectedItem = value; } public void setAlignUnder(Component comp) { alignUnder = comp; } // see 6240074 for more information public void addXChoicePeerListener(XChoicePeerListener l){ choiceListener = l; } // see 6240074 for more information public void removeXChoicePeerListener(){ choiceListener = null; } public boolean isUnfurled(){ return unfurled; } /* fix for 6261352. We should detect if current parent Window (containing a Choice) become iconified and hide pop-down menu with grab release. * In this case we should hide pop-down menu. */ //calls from XWindowPeer. Could accept X-styled state events public void stateChangedICCCM(int oldState, int newState) { if (unfurled && oldState != newState){ hidePopdownMenu(); } } //calls from XFramePeer. Could accept Frame's states. public void stateChangedJava(int oldState, int newState) { if (unfurled && oldState != newState){ hidePopdownMenu(); } } /**************************************************************************/ /* Common functionality between List & Choice /**************************************************************************/ /** * Inner class for the unfurled Choice list * Much, much more docs */ class UnfurledChoice extends XWindow /*implements XScrollbarClient*/ { // First try - use Choice as the target public UnfurledChoice(Component target) { super(target); } // Override so we can do our own create() public void preInit(XCreateWindowParams params) { // A parent of this window is the target, at this point: wrong. // Remove parent window; in the following preInit() call we'll calculate as a default // a correct root window which is the proper parent for override redirect. params.delete(PARENT_WINDOW); super.preInit(params); // Reset bounds(we'll set them later), set overrideRedirect params.remove(BOUNDS); params.add(OVERRIDE_REDIRECT, Boolean.TRUE); } // Generally, bounds should be: // x = target.x // y = target.y + target.height // w = Max(target.width, getLongestItemWidth) + possible vertScrollbar // h = Min(MAX_UNFURLED_ITEMS, target.getItemCount()) * itemHeight Rectangle placeOnScreen() { int numItemsDisplayed; // Motif paints an empty Choice the same size as a single item if (helper.isEmpty()) { numItemsDisplayed = 1; } else { int numItems = helper.getItemCount(); numItemsDisplayed = Math.min(MAX_UNFURLED_ITEMS, numItems); } Point global = XChoicePeer.this.toGlobal(0,0); Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); if (alignUnder != null) { Rectangle choiceRec = XChoicePeer.this.getBounds(); choiceRec.setLocation(0, 0); choiceRec = XChoicePeer.this.toGlobal(choiceRec); Rectangle alignUnderRec = new Rectangle(alignUnder.getLocationOnScreen(), alignUnder.getSize()); // TODO: Security? Rectangle result = choiceRec.union(alignUnderRec); // we've got the left and width, calculate top and height width = result.width; x = result.x; y = result.y + result.height; height = 2*BORDER_WIDTH + numItemsDisplayed*(helper.getItemHeight()+2*ITEM_MARGIN); } else { x = global.x; y = global.y + XChoicePeer.this.height; width = Math.max(XChoicePeer.this.width, helper.getMaxItemWidth() + 2 * (BORDER_WIDTH + ITEM_MARGIN + TEXT_SPACE) + (helper.isVSBVisible() ? SCROLLBAR_WIDTH : 0)); height = 2*BORDER_WIDTH + numItemsDisplayed*(helper.getItemHeight()+2*ITEM_MARGIN); } // Don't run off the edge of the screen if (x < 0) { x = 0; } else if (x + width > screen.width) { x = screen.width - width; } if (y + height > screen.height) { y = global.y - height; } if (y < 0) { y = 0; } return new Rectangle(x, y, width, height); } public void toFront() { // see 6240074 for more information if (choiceListener != null) choiceListener.unfurledChoiceOpening(helper); Rectangle r = placeOnScreen(); reshape(r.x, r.y, r.width, r.height); super.toFront(); setVisible(true); } /* * Track a MouseEvent (either a drag or a press) and paint a new * selected item, if necessary. */ // FIXME: first unfurl after move is not at edge of the screen onto second monitor doesn't // track mouse correctly. Problem is w/ UnfurledChoice coords public void trackMouse(MouseEvent e) { // Event coords are relative to the button, so translate a bit Point local = toLocalCoords(e); // If x,y is over unfurled Choice, // highlight item under cursor switch (e.getID()) { case MouseEvent.MOUSE_PRESSED: // FIXME: If the Choice is unfurled and the mouse is pressed // outside of the Choice, the mouse should ungrab on the // the press, not the release if (helper.isInVertSB(getBounds(), local.x, local.y)) { mouseInSB = true; helper.handleVSBEvent(e, getBounds(), local.x, local.y); } else { trackSelection(local.x, local.y); } break; case MouseEvent.MOUSE_RELEASED: if (mouseInSB) { mouseInSB = false; helper.handleVSBEvent(e, getBounds(), local.x, local.y); }else{ // See 6243382 for more information helper.trackMouseReleasedScroll(); } /* else { trackSelection(local.x, local.y); } */ break; case MouseEvent.MOUSE_DRAGGED: if (mouseInSB) { helper.handleVSBEvent(e, getBounds(), local.x, local.y); } else { // See 6243382 for more information helper.trackMouseDraggedScroll(local.x, local.y, width, height); trackSelection(local.x, local.y); } break; } } private void trackSelection(int transX, int transY) { if (!helper.isEmpty()) { if (transX > 0 && transX < width && transY > 0 && transY < height) { int newIdx = helper.y2index(transY); if (log.isLoggable(PlatformLogger.Level.FINE)) { log.fine("transX=" + transX + ", transY=" + transY + ",width=" + width + ", height=" + height + ", newIdx=" + newIdx + " on " + target); } if ((newIdx >=0) && (newIdx < helper.getItemCount()) && (newIdx != helper.getSelectedIndex())) { helper.select(newIdx); unfurledChoice.repaint(); } } } // FIXME: If dragged off top or bottom, scroll if there's a vsb // (ICK - we'll need a timer or our own event or something) } /* * fillRect with current Background color on the whole dropdown list. */ public void paintBackground() { final Graphics g = getGraphics(); if (g != null) { try { g.setColor(getPeerBackground()); g.fillRect(0, 0, width, height); } finally { g.dispose(); } } } /* * 6405689. In some cases we should erase background to eliminate painting * artefacts. */ @Override public void repaint() { if (!isVisible()) { return; } if (helper.checkVsbVisibilityChangedAndReset()){ paintBackground(); } super.repaint(); } @Override public void paintPeer(Graphics g) { //System.out.println("UC.paint()"); Choice choice = (Choice)target; Color colors[] = XChoicePeer.this.getGUIcolors(); draw3DRect(g, getSystemColors(), 0, 0, width - 1, height - 1, true); draw3DRect(g, getSystemColors(), 1, 1, width - 3, height - 3, true); helper.paintAllItems(g, colors, getBounds()); } public void setVisible(boolean vis) { xSetVisible(vis); if (!vis && alignUnder != null) { alignUnder.requestFocusInWindow(); } } /** * Return a MouseEvent's Point in coordinates relative to the * UnfurledChoice. */ private Point toLocalCoords(MouseEvent e) { // Event coords are relative to the button, so translate a bit Point global = e.getLocationOnScreen(); global.x -= x; global.y -= y; return global; } /* Returns true if the MouseEvent coords (which are based on the Choice) * are inside of the UnfurledChoice. */ private boolean isMouseEventInside(MouseEvent e) { Point local = toLocalCoords(e); if (local.x > 0 && local.x < width && local.y > 0 && local.y < height) { return true; } return false; } /** * Tests if the mouse cursor is in the Unfurled Choice, yet not * in the vertical scrollbar */ private boolean isMouseInListArea(MouseEvent e) { if (isMouseEventInside(e)) { Point local = toLocalCoords(e); Rectangle bounds = getBounds(); if (!helper.isInVertSB(bounds, local.x, local.y)) { return true; } } return false; } /* * Overridden from XWindow() because we don't want to send * ComponentEvents */ public void handleConfigureNotifyEvent(XEvent xev) {} public void handleMapNotifyEvent(XEvent xev) {} public void handleUnmapNotifyEvent(XEvent xev) {} } //UnfurledChoice public void dispose() { if (unfurledChoice != null) { unfurledChoice.destroy(); } super.dispose(); } /* * fix for 6239938 : Choice drop-down does not disappear when it loses * focus, on XToolkit * We are able to handle all _Key_ events received by Choice when * it is in opened state without sending it to EventQueue. * If Choice is in closed state we should behave like before: send * all events to EventQueue. * To be compatible with Motif we should handle all KeyEvents in * Choice if it is opened. KeyEvents should be sent into Java if Choice is not opened. */ boolean prePostEvent(final AWTEvent e) { if (unfurled){ // fix for 6253211: PIT: MouseWheel events not triggered for Choice drop down in XAWT if (e instanceof MouseWheelEvent){ return super.prePostEvent(e); } //fix 6252982: PIT: Keyboard FocusTraversal not working when choice's drop-down is visible, on XToolkit if (e instanceof KeyEvent){ // notify XWindow that this event had been already handled and no need to post it again InvocationEvent ev = new InvocationEvent(target, new Runnable() { public void run() { if(target.isFocusable() && getParentTopLevel().isFocusableWindow() ) { handleJavaKeyEvent((KeyEvent)e); } } }); postEvent(ev); return true; } else { if (e instanceof MouseEvent){ // Fix for 6240046 : REG:Choice's Drop-down does not disappear when clicking somewhere, after popup menu is disposed // if user presses Right Mouse Button on opened (unfurled) // Choice then we mustn't open a popup menu. We could filter // Mouse Events and handle them in XChoicePeer if Choice // currently in opened state. MouseEvent me = (MouseEvent)e; int eventId = e.getID(); // fix 6251983: PIT: MouseDragged events not triggered // fix 6251988: PIT: Choice consumes MouseReleased, MouseClicked events when clicking it with left button, if ((unfurledChoice.isMouseEventInside(me) || (!firstPress && eventId == MouseEvent.MOUSE_DRAGGED))) { return handleMouseEventByChoice(me); } // MouseMoved events should be fired in Choice's comp if it's not opened // Shouldn't generate Moved Events. CR : 6251995 if (eventId == MouseEvent.MOUSE_MOVED){ return handleMouseEventByChoice(me); } //fix for 6272965: PIT: Choice triggers MousePressed when pressing mouse outside comp while drop-down is active, XTkt if ( !firstPress && !( isMouseEventInChoice(me) || unfurledChoice.isMouseEventInside(me)) && ( eventId == MouseEvent.MOUSE_PRESSED || eventId == MouseEvent.MOUSE_RELEASED || eventId == MouseEvent.MOUSE_CLICKED ) ) { return handleMouseEventByChoice(me); } } }//else KeyEvent }//if unfurled return super.prePostEvent(e); } //convenient method //do not generate this kind of Events public boolean handleMouseEventByChoice(final MouseEvent me){ InvocationEvent ev = new InvocationEvent(target, new Runnable() { public void run() { handleJavaMouseEvent(me); } }); postEvent(ev); return true; } /* Returns true if the MouseEvent coords * are inside of the Choice itself (it doesnt's depends on * if this choice opened or not). */ private boolean isMouseEventInChoice(MouseEvent e) { int x = e.getX(); int y = e.getY(); Rectangle choiceRect = getBounds(); if (x < 0 || x > choiceRect.width || y < 0 || y > choiceRect.height) { return false; } return true; } }