From 22f3df9aa81efc071cb13d43a372ead97548eebc Mon Sep 17 00:00:00 2001
From: Mark Tiefenbruck <mark@fluxbox.org>
Date: Fri, 3 Oct 2008 22:59:14 -0700
Subject: break keychains after an invalid key is pressed (which unfortunately
 will be swallowed)

---
 ChangeLog     |  2 ++
 src/Keys.cc   | 15 ++++++---------
 src/Keys.hh   |  5 ++++-
 src/Screen.cc |  5 +++--
 4 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index c4f3ab0..0214d31 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,8 @@
  (Format: Year/Month/Day)
 Changes for 1.1.2
 *08/10/04:
+   * Break emacs-style keychains after one invalid key has been pressed (Mark)
+     Screen.cc Keys.cc/hh
    * Fix flickering of shaped windows, #2131548 and #2001027 (Mark)
      FbTk/Shape.cc
 *08/10/01:
diff --git a/src/Keys.cc b/src/Keys.cc
index 05f1747..658820e 100644
--- a/src/Keys.cc
+++ b/src/Keys.cc
@@ -170,7 +170,9 @@ Keys::t_key::~t_key() {
 
 
 
-Keys::Keys(): m_reloader(new FbTk::AutoReloadHelper()), next_key(0) {
+Keys::Keys():
+    m_reloader(new FbTk::AutoReloadHelper()),
+    next_key(0), saved_keymode(0) {
     m_reloader->setReloadCmd(FbTk::RefCount<FbTk::Command<void> >(new FbTk::SimpleCommand<Keys>(*this, &Keys::reload)));
 }
 
@@ -187,6 +189,7 @@ void Keys::deleteTree() {
         delete map_it->second;
     m_map.clear();
     next_key = 0;
+    saved_keymode = 0;
 }
 
 // keys are only grabbed in global context
@@ -504,22 +507,16 @@ bool Keys::doAction(int type, unsigned int mods, unsigned int key,
     if (!temp_key && isdouble)
         temp_key = next_key->find(type, mods, key, context, false);
 
-    // need to save this for emacs-style keybindings
-    static t_key *saved_keymode = 0;
-
-    // grab "None Escape" to exit keychain in the middle
-    unsigned int esc = FbTk::KeyUtil::getKey("Escape");
-
     if (temp_key && !temp_key->keylist.empty()) { // emacs-style
         if (!saved_keymode)
             saved_keymode = m_keylist;
         next_key = temp_key;
         setKeyMode(next_key);
-        grabKey(esc,0);
         return true;
     }
     if (!temp_key || *temp_key->m_command == 0) {
-        if (type == KeyPress && key == esc && mods == 0) {
+        if (type == KeyPress &&
+            !FbTk::KeyUtil::instance().keycodeToModmask(key)) {
             // if we're in the middle of an emacs-style keychain, exit it
             next_key = 0;
             if (saved_keymode) {
diff --git a/src/Keys.hh b/src/Keys.hh
index 03a15dd..9502643 100644
--- a/src/Keys.hh
+++ b/src/Keys.hh
@@ -83,6 +83,9 @@ public:
     */
     void reconfigure();
     void keyMode(const std::string& keyMode);
+
+    bool inKeychain() const { return saved_keymode != 0; }
+
 private:
     class t_key; // helper class to build a 'keytree'
     typedef std::map<std::string, t_key *> keyspace_t;
@@ -109,7 +112,7 @@ private:
     keyspace_t m_map;
 
     // former doAction static var, we need to access it from deleteTree
-    t_key *next_key;
+    t_key *next_key, *saved_keymode;
 
     WindowMap m_window_map;
     HandlerMap m_handler_map;
diff --git a/src/Screen.cc b/src/Screen.cc
index 892afda..49b631d 100644
--- a/src/Screen.cc
+++ b/src/Screen.cc
@@ -856,6 +856,7 @@ void BScreen::keyPressEvent(XKeyEvent &ke) {
     if (Fluxbox::instance()->keys()->doAction(ke.type, ke.state, ke.keycode,
                                               Keys::GLOBAL|Keys::ON_DESKTOP))
         // re-grab keyboard, so we don't pass KeyRelease to clients
+        // also for catching invalid keys in the middle of keychains
         FbTk::EventManager::instance()->grabKeyboard(rootWindow().window());
 
 }
@@ -871,8 +872,8 @@ void BScreen::keyReleaseEvent(XKeyEvent &ke) {
         m_cycling = false;
         focusControl().stopCyclingFocus();
     }
-
-    FbTk::EventManager::instance()->ungrabKeyboard();
+    if (!Fluxbox::instance()->keys()->inKeychain())
+        FbTk::EventManager::instance()->ungrabKeyboard();
 }
 
 void BScreen::buttonPressEvent(XButtonEvent &be) {
-- 
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