From 5641a875c189f6d3344eeb4de83536e946edcd7a Mon Sep 17 00:00:00 2001 From: crs Date: Fri, 3 May 2002 11:26:44 +0000 Subject: [PATCH] checkpoint. made changes to support key autorepeats on X. --- client/CXWindowsSecondaryScreen.cpp | 189 ++++++++++++++++++++-------- client/CXWindowsSecondaryScreen.h | 19 ++- server/CXWindowsPrimaryScreen.cpp | 46 ++++++- server/CXWindowsPrimaryScreen.h | 9 ++ 4 files changed, 197 insertions(+), 66 deletions(-) diff --git a/client/CXWindowsSecondaryScreen.cpp b/client/CXWindowsSecondaryScreen.cpp index 8bde1c78..eda25015 100644 --- a/client/CXWindowsSecondaryScreen.cpp +++ b/client/CXWindowsSecondaryScreen.cpp @@ -221,30 +221,33 @@ void CXWindowsSecondaryScreen::keyDown( Keystrokes keys; KeyCode keycode; - CDisplayLock display(this); - // get the sequence of keys to simulate key press and the final // modifier state. - m_mask = mapKey(keys, keycode, key, mask, True); + m_mask = mapKey(keys, keycode, key, mask, kPress); if (keys.empty()) return; // generate key events - for (Keystrokes::const_iterator k = keys.begin(); k != keys.end(); ++k) - XTestFakeKeyEvent(display, k->first, k->second, CurrentTime); + doKeystrokes(keys, 1); // note that key is now down m_keys[keycode] = true; - - // update - XSync(display, False); } void CXWindowsSecondaryScreen::keyRepeat( - KeyID, KeyModifierMask, SInt32) + KeyID key, KeyModifierMask mask, SInt32 count) { - CDisplayLock display(this); - // FIXME + Keystrokes keys; + KeyCode keycode; + + // get the sequence of keys to simulate key repeat and the final + // modifier state. + m_mask = mapKey(keys, keycode, key, mask, kRepeat); + if (keys.empty()) + return; + + // generate key events + doKeystrokes(keys, count); } void CXWindowsSecondaryScreen::keyUp( @@ -253,23 +256,17 @@ void CXWindowsSecondaryScreen::keyUp( Keystrokes keys; KeyCode keycode; - CDisplayLock display(this); - // get the sequence of keys to simulate key release and the final // modifier state. - m_mask = mapKey(keys, keycode, key, mask, False); + m_mask = mapKey(keys, keycode, key, mask, kRelease); if (keys.empty()) return; // generate key events - for (Keystrokes::const_iterator k = keys.begin(); k != keys.end(); ++k) - XTestFakeKeyEvent(display, k->first, k->second, CurrentTime); + doKeystrokes(keys, 1); // note that key is now up m_keys[keycode] = false; - - // update - XSync(display, False); } void CXWindowsSecondaryScreen::mouseDown(ButtonID button) @@ -408,7 +405,7 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( Keystrokes& keys, KeyCode& keycode, KeyID id, KeyModifierMask mask, - Bool press) const + EKeyAction action) const { // note -- must have display locked on entry @@ -425,8 +422,8 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( // note if the key is the caps lock and it's "half-duplex" const bool isHalfDuplex = (id == XK_Caps_Lock && m_capsLockHalfDuplex); - // ignore releases for half-duplex keys - if (isHalfDuplex && !press) { + // ignore releases and repeats for half-duplex keys + if (isHalfDuplex && action != kPress) { return m_mask; } @@ -457,6 +454,7 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( // a modifier key then skip this because modifiers should not // modify modifiers. Keystrokes undo; + Keystroke keystroke; if (outMask != m_mask && !isModifier) { for (unsigned int i = 0; i < 8; ++i) { unsigned int bit = (1 << i); @@ -472,20 +470,26 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( // modifier is a toggle then toggle it on with a // press/release, otherwise activate it with a // press. use the first keycode for the modifier. - const KeyCode modifierKey = modifierKeys[0]; - keys.push_back(std::make_pair(modifierKey, True)); + keystroke.m_keycode = modifierKeys[0]; + keystroke.m_press = True; + keystroke.m_repeat = False; + keys.push_back(keystroke); if ((bit & m_toggleModifierMask) != 0) { if (bit != m_capsLockMask || !m_capsLockHalfDuplex) { - keys.push_back(std::make_pair(modifierKey, False)); - undo.push_back(std::make_pair(modifierKey, False)); - undo.push_back(std::make_pair(modifierKey, True)); + keystroke.m_press = False; + keys.push_back(keystroke); + undo.push_back(keystroke); + keystroke.m_press = True; + undo.push_back(keystroke); } else { - undo.push_back(std::make_pair(modifierKey, False)); + keystroke.m_press = False; + undo.push_back(keystroke); } } else { - undo.push_back(std::make_pair(modifierKey, False)); + keystroke.m_press = False; + undo.push_back(keystroke); } } @@ -496,24 +500,34 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( // release. we must check each keycode for the // modifier if not a toggle. if ((bit & m_toggleModifierMask) != 0) { - const KeyCode modifierKey = modifierKeys[0]; + keystroke.m_keycode = modifierKeys[0]; + keystroke.m_repeat = False; if (bit != m_capsLockMask || !m_capsLockHalfDuplex) { - keys.push_back(std::make_pair(modifierKey, True)); - keys.push_back(std::make_pair(modifierKey, False)); - undo.push_back(std::make_pair(modifierKey, False)); - undo.push_back(std::make_pair(modifierKey, True)); + keystroke.m_press = True; + keys.push_back(keystroke); + keystroke.m_press = False; + keys.push_back(keystroke); + undo.push_back(keystroke); + keystroke.m_press = True; + undo.push_back(keystroke); } else { - keys.push_back(std::make_pair(modifierKey, False)); - undo.push_back(std::make_pair(modifierKey, True)); + keystroke.m_press = False; + keys.push_back(keystroke); + keystroke.m_press = True; + undo.push_back(keystroke); } } else { for (unsigned int j = 0; j < m_keysPerModifier; ++j) { const KeyCode key = modifierKeys[j]; if (m_keys[key]) { - keys.push_back(std::make_pair(key, False)); - undo.push_back(std::make_pair(key, True)); + keystroke.m_keycode = key; + keystroke.m_press = False; + keystroke.m_repeat = False; + keys.push_back(keystroke); + keystroke.m_press = True; + undo.push_back(keystroke); } } } @@ -524,11 +538,32 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( // note if the press of a half-duplex key should be treated as a release if (isHalfDuplex && (m_mask & (1 << index->second)) != 0) { - press = false; + action = kRelease; } // add the key event - keys.push_back(std::make_pair(keycode, press)); + keystroke.m_keycode = keycode; + switch (action) { + case kPress: + keystroke.m_press = True; + keystroke.m_repeat = False; + keys.push_back(keystroke); + break; + + case kRelease: + keystroke.m_press = False; + keystroke.m_repeat = False; + keys.push_back(keystroke); + break; + + case kRepeat: + keystroke.m_press = False; + keystroke.m_repeat = True; + keys.push_back(keystroke); + keystroke.m_press = True; + keys.push_back(keystroke); + break; + } // add key events to restore the modifier state. apply events in // the reverse order that they're stored in undo. @@ -538,9 +573,9 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( } // if the key is a modifier key then compute the modifier map after - // this key is pressed. + // this key is pressed or released. if repeating then ignore. mask = m_mask; - if (isModifier) { + if (isModifier && action != kRepeat) { // get modifier const unsigned int modifierBit = (1 << index->second); @@ -549,10 +584,10 @@ KeyModifierMask CXWindowsSecondaryScreen::mapKey( // and clear the bit on release. if half-duplex then toggle // each time we get here. if ((modifierBit & m_toggleModifierMask) != 0) { - if (((mask & modifierBit) == 0) == press) + if (((mask & modifierBit) == 0) == (action == kPress)) mask ^= modifierBit; } - else if (press) { + else if (action == kPress) { mask |= modifierBit; } else { @@ -640,7 +675,7 @@ bool CXWindowsSecondaryScreen::findKeyCode( } // save the keycode - keycode = index->second.keycode; + keycode = index->second.m_keycode; // compute output mask. that's the set of modifiers that need to // be enabled when the keycode event is encountered in order to @@ -649,22 +684,68 @@ bool CXWindowsSecondaryScreen::findKeyCode( // it impossible to generate the keysym. in that case we must // override maskIn. this is complicated by caps/shift-lock and // num-lock. - maskOut = (maskIn & ~index->second.keyMaskMask); + maskOut = (maskIn & ~index->second.m_keyMaskMask); if (IsKeypadKey(id) || IsPrivateKeypadKey(id)) { - maskOut |= index->second.keyMask; + maskOut |= index->second.m_keyMask; maskOut &= ~m_numLockMask; } else { - unsigned int maskShift = (index->second.keyMask & ShiftMask); - if (index->second.keyMaskMask != 0 && (m_mask & m_capsLockMask) != 0) + unsigned int maskShift = (index->second.m_keyMask & ShiftMask); + if (index->second.m_keyMaskMask != 0 && (m_mask & m_capsLockMask) != 0) maskShift ^= ShiftMask; maskOut |= maskShift | (m_mask & m_capsLockMask); - maskOut |= (index->second.keyMask & ~(ShiftMask | LockMask)); + maskOut |= (index->second.m_keyMask & ~(ShiftMask | LockMask)); } return true; } +void CXWindowsSecondaryScreen::doKeystrokes( + const Keystrokes& keys, SInt32 count) +{ + // do nothing if no keys or no repeats + if (count < 1 || keys.empty()) + return; + + // lock display + CDisplayLock display(this); + + // generate key events + for (Keystrokes::const_iterator k = keys.begin(); k != keys.end(); ) { + if (k->m_repeat) { + // repeat from here up to but not including the next key + // with m_repeat == false count times. + Keystrokes::const_iterator start = k; + for (; count > 0; --count) { + // we generally want repeating keys to use the exact + // same event time for each release/press pair so we + // don't want to use CurrentTime which can't ensure + // that. + Time time = getCurrentTime(m_window); + + // send repeating events + for (k = start; k != keys.end() && k->m_repeat; ++k) { + XTestFakeKeyEvent(display, + k->m_keycode, k->m_press, time); + } + } + + // note -- k is now on the first non-repeat key after the + // repeat keys, exactly where we'd like to continue from. + } + else { + // send event + XTestFakeKeyEvent(display, k->m_keycode, k->m_press, CurrentTime); + + // next key + ++k; + } + } + + // update + XSync(display, False); +} + unsigned int CXWindowsSecondaryScreen::maskToX( KeyModifierMask inMask) const { @@ -764,12 +845,12 @@ void CXWindowsSecondaryScreen::updateKeycodeMap( } // set the mask of modifiers that this keycode uses - entry.keyMaskMask = (n == 1) ? 0 : (ShiftMask | LockMask); + entry.m_keyMaskMask = (n == 1) ? 0 : (ShiftMask | LockMask); // add entries for this keycode - entry.keycode = static_cast(minKeycode + i); + entry.m_keycode = static_cast(minKeycode + i); for (int j = 0; j < numKeysyms; ++j) { - entry.keyMask = (j == 0) ? 0 : ShiftMask; + entry.m_keyMask = (j == 0) ? 0 : ShiftMask; m_keycodeMap.insert(std::make_pair(keysyms[i * keysymsPerKeycode + j], entry)); } @@ -841,7 +922,7 @@ void CXWindowsSecondaryScreen::toggleKey( KeyCodeMap::const_iterator index = m_keycodeMap.find(keysym); if (index == m_keycodeMap.end()) return; - KeyCode keycode = index->second.keycode; + KeyCode keycode = index->second.m_keycode; // toggle the key if (keysym == XK_Caps_Lock && m_capsLockHalfDuplex) { diff --git a/client/CXWindowsSecondaryScreen.h b/client/CXWindowsSecondaryScreen.h index 15388442..2a79266b 100644 --- a/client/CXWindowsSecondaryScreen.h +++ b/client/CXWindowsSecondaryScreen.h @@ -38,13 +38,19 @@ protected: virtual long getEventMask(Window) const; private: - struct KeyCodeMask { + enum EKeyAction { kPress, kRelease, kRepeat }; + class KeyCodeMask { public: - KeyCode keycode; - unsigned int keyMask; - unsigned int keyMaskMask; + KeyCode m_keycode; + unsigned int m_keyMask; + unsigned int m_keyMaskMask; + }; + class Keystroke { + public: + KeyCode m_keycode; + Bool m_press; + bool m_repeat; }; - typedef std::pair Keystroke; typedef std::vector Keystrokes; typedef std::vector KeyCodes; typedef std::map KeyCodeMap; @@ -54,9 +60,10 @@ private: unsigned int mapButton(ButtonID button) const; unsigned int mapKey(Keystrokes&, KeyCode&, KeyID, - KeyModifierMask, Bool press) const; + KeyModifierMask, EKeyAction) const; bool findKeyCode(KeyCode&, unsigned int&, KeyID id, unsigned int) const; + void doKeystrokes(const Keystrokes&, SInt32 count); unsigned int maskToX(KeyModifierMask) const; void updateKeys(Display* display); diff --git a/server/CXWindowsPrimaryScreen.cpp b/server/CXWindowsPrimaryScreen.cpp index 35b7014e..aacb32b6 100644 --- a/server/CXWindowsPrimaryScreen.cpp +++ b/server/CXWindowsPrimaryScreen.cpp @@ -63,16 +63,40 @@ void CXWindowsPrimaryScreen::run() break; } - // FIXME -- simulate key repeat. X sends press/release for - // repeat. must detect auto repeat and use kKeyRepeat. case KeyRelease: { - log((CLOG_DEBUG1 "event: KeyRelease code=%d, state=0x%04x", xevent.xkey.keycode, xevent.xkey.state)); const KeyModifierMask mask = mapModifier(xevent.xkey.state); const KeyID key = mapKey(&xevent.xkey); if (key != kKeyNone) { - if (key == XK_Caps_Lock && m_capsLockHalfDuplex) - m_server->onKeyDown(key, mask); - m_server->onKeyUp(key, mask); + // check if this is a key repeat by getting the next + // KeyPress event that has the same key and time as + // this release event, if any. first prepare the + // filter info. + CKeyEventInfo filter; + filter.m_event = KeyPress; + filter.m_window = xevent.xkey.window; + filter.m_time = xevent.xkey.time; + filter.m_keycode = xevent.xkey.keycode; + + // now check for event + XEvent xevent2; + CDisplayLock display(this); + if (XCheckIfEvent(display, &xevent2, + &CXWindowsPrimaryScreen::findKeyEvent, + (XPointer)&filter) != True) { + // no press event follows so it's a plain release + log((CLOG_DEBUG1 "event: KeyRelease code=%d, state=0x%04x", xevent.xkey.keycode, xevent.xkey.state)); + if (key == XK_Caps_Lock && m_capsLockHalfDuplex) + m_server->onKeyDown(key, mask); + m_server->onKeyUp(key, mask); + } + else { + // found a press event following so it's a repeat. + // we could attempt to count the already queued + // repeats but we'll just send a repeat of 1. + // note that we discard the press event. + log((CLOG_DEBUG1 "event: repeat code=%d, state=0x%04x", xevent.xkey.keycode, xevent.xkey.state)); + m_server->onKeyRepeat(key, mask, 1); + } } break; } @@ -550,3 +574,13 @@ void CXWindowsPrimaryScreen::updateModifierMap( XFreeModifiermap(keymap); } + +Bool CXWindowsPrimaryScreen::findKeyEvent( + Display*, XEvent* xevent, XPointer arg) +{ + CKeyEventInfo* filter = reinterpret_cast(arg); + return (xevent->type == filter->m_event && + xevent->xkey.window == filter->m_window && + xevent->xkey.time == filter->m_time && + xevent->xkey.keycode == filter->m_keycode) ? True : False; +} diff --git a/server/CXWindowsPrimaryScreen.h b/server/CXWindowsPrimaryScreen.h index 5df90544..8c521bed 100644 --- a/server/CXWindowsPrimaryScreen.h +++ b/server/CXWindowsPrimaryScreen.h @@ -43,6 +43,15 @@ private: void updateModifierMap(Display* display); + class CKeyEventInfo { + public: + int m_event; + Window m_window; + Time m_time; + KeyCode m_keycode; + }; + static Bool findKeyEvent(Display*, XEvent* xevent, XPointer arg); + private: CServer* m_server; bool m_active;