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Enhancement - Hooks

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- Implemented API::callTaskHook.
- Implemented Hook object inside Hooks.cpp, not Hooks.h.
- Implemented Hooks.setTaskId to provide context for task hooks.
- Implemented pre-tag, post-tag, pre-detag, post-detag
  events.
- Implemented pre-file-lock, post-file-lock, pre-file-unlock, post-file-unlock
  events.
This commit is contained in:
Paul Beckingham 2010-01-23 12:47:48 -05:00
parent 21d5607af2
commit 03f7e0686f
6 changed files with 137 additions and 58 deletions
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43
src/API.cpp
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@ -539,12 +539,44 @@ bool API::callTaskHook (
{
loadFile (file);
// TODO Get function.
// TODO Prepare args.
// TODO Make call.
// TODO Get exit status.
// Get function.
lua_getglobal (L, function.c_str ());
if (!lua_isfunction (L, -1))
{
lua_pop (L, 1);
throw std::string ("The Lua function '") + function + "' was not found.";
}
return true;
// Prepare args.
lua_pushnumber (L, id);
// Make call.
if (lua_pcall (L, 1, 2, 0) != 0)
throw std::string ("Error calling '") + function + "' - " + lua_tostring (L, -1);
// Call successful - get return values.
if (!lua_isnumber (L, -2))
throw std::string ("Error: '") + function + "' did not return a success indicator";
if (!lua_isstring (L, -1) && !lua_isnil (L, -1))
throw std::string ("Error: '") + function + "' did not return a message or nil";
int rc = lua_tointeger (L, -2);
const char* message = lua_tostring (L, -1);
if (rc == 0)
{
if (message)
context.footnote (std::string ("Warning: ") + message);
}
else
{
if (message)
throw std::string (message);
}
lua_pop (L, 1);
return rc == 0 ? true : false;
}
////////////////////////////////////////////////////////////////////////////////
@ -567,6 +599,7 @@ bool API::callFieldHook (
////////////////////////////////////////////////////////////////////////////////
void API::loadFile (const std::string& file)
{
// If the file is not loaded.
if (std::find (loaded.begin (), loaded.end (), file) == loaded.end ())
{
// Load the file, if possible.