added FbTk::CommandRegistry, decentralized command parsing, and made them auto-register

1 files changed, 92 insertions, 0 deletions

diff --git a/src/FbTk/CommandRegistry.cc b/src/FbTk/CommandRegistry.cc
new file mode 100644
index 0000000..1d16c75
--- /dev/null
+++ b/src/FbTk/CommandRegistry.cc
@@ -0,0 +1,92 @@
+// CommandRegistry.cc for FbTk
+// Copyright (c) 2007 Fluxbox Team (fluxgen at fluxbox dot org)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+// $Id: $
+
+#include "CommandRegistry.hh"
+#include "Command.hh"
+#include "StringUtil.hh"
+
+#include <iostream>
+
+namespace FbTk {
+
+CommandRegistry &CommandRegistry::instance() {
+    static CommandRegistry s_instance;
+    return s_instance;
+}
+
+
+bool CommandRegistry::registerCommand(string name,
+                                      CreateFunction createFunction) {
+    name = StringUtil::toLower(name);
+    m_commandCreators[name] = createFunction;
+    return true;
+}
+
+bool CommandRegistry::registerBoolCommand(string name,
+                                          BoolCreateFunction createFunction) {
+    name = StringUtil::toLower(name);
+    m_boolcommandCreators[name] = createFunction;
+    return true;
+}
+
+Command *CommandRegistry::parseLine(const string &line, bool trusted) const {
+    // parse args and command
+    string command, args;
+    StringUtil::getFirstWord(line, command, args);
+
+    // now we have parsed command and args
+    command = StringUtil::toLower(command);
+    return getCommand(command, args, trusted);
+}
+
+BoolCommand *CommandRegistry::parseBoolLine(const string &line, bool trusted) const {
+    // parse args and command
+    string command, args;
+    StringUtil::getFirstWord(line, command, args);
+
+    // now we have parsed command and args
+    command = StringUtil::toLower(command);
+    return getBoolCommand(command, args, trusted);
+}
+
+Command *CommandRegistry::getCommand(const string &name, const string &args,
+                                     bool trusted) const {
+    string lc = StringUtil::toLower(name);
+    CreatorMap::const_iterator it = m_commandCreators.find(lc.c_str());
+    if (it == m_commandCreators.end())
+        return 0;
+    else
+        return it->second(name, args, trusted);
+}
+
+BoolCommand *CommandRegistry::getBoolCommand(const string &name,
+        const string &args, bool trusted) const {
+    string lc = StringUtil::toLower(name);
+    BoolCreatorMap::const_iterator it = m_boolcommandCreators.find(lc.c_str());
+    if (it == m_boolcommandCreators.end())
+        return 0;
+    else
+        return it->second(name, args, trusted);
+}
+
+}; // end namespace FbTk