]> git.lyx.org Git - lyx.git/blobdiff - src/minibuffer.C
Fix the WorkArea problems.
[lyx.git] / src / minibuffer.C
index 1ad4588212b793a7f2394940f9bfec1a482e1834..944af290e338f54cbe143514ec0308d25eb40690 100644 (file)
  *                 information.
  * 
  *           Copyright 1995 Matthias Ettrich
- *           Copyright 1995-1999 The LyX Team.  
+ *           Copyright 1995-2001 The LyX Team.  
  * 
  * ###########################################################################
  */
 
 #include <config.h>
 
+#include <iostream>
+
 #ifdef __GNUG__
-#pragma implementation "minibuffer.h"
+#pragma implementation
 #endif
 
+#include "minibuffer.h"
+
+#include "support/lyxalgo.h"
 #include "support/filetools.h"
-#include "lyx_main.h" 
-#include "lyxfunc.h"
-#include FORMS_H_LOCATION
-#include "minibuffer.h"  
+#include "support/lstrings.h"
 #include "LyXView.h"
-#include "debug.h"
+#include "XFormsView.h"
 #include "gettext.h"
+#include "LyXAction.h"
+#include "BufferView.h"
+
+
+using SigC::slot;
+using std::vector;
 
-extern bool keyseqUncomplete();
-extern string keyseqOptions(int l=190);
-extern string keyseqStr(int l=190);
 extern LyXAction lyxaction;
 
-void MiniBuffer::TimerCB(FL_OBJECT *, long tmp)
+
+namespace {
+
+struct prefix {
+       string p;
+       prefix(string const & s) 
+               : p(s) {}
+       bool operator()(string const & s) const {
+               return prefixIs(s, p);
+       }
+};
+
+} // end of anon namespace
+
+
+MiniBuffer::MiniBuffer(LyXView * o, FL_Coord x, FL_Coord y,
+                      FL_Coord h, FL_Coord w)
+       : stored_(false), owner_(o), state_(spaces)
 {
-       MiniBuffer *obj= (MiniBuffer*)tmp;
-       obj->Init();
+       add(FL_NORMAL_INPUT, x, y, h, w);
+       timer.setTimeout(6000);
+       timer.timeout.connect(slot(this, &MiniBuffer::init));
+       stored_timer.setTimeout(1500);
+       stored_timer.timeout.connect(slot(this, &MiniBuffer::stored_slot));
+       deactivate();
 }
 
 
-void MiniBuffer::ExecutingCB(FL_OBJECT *ob, long)
+void MiniBuffer::stored_slot() 
 {
-       MiniBuffer *obj = (MiniBuffer*)ob->u_vdata;
-       lyxerr.debug() << "Getting ready to execute: " << obj->cur_cmd << endl;
-       fl_set_focus_object(obj->owner->getForm(),
-                           obj->owner->currentView()->getWorkArea());
-       if (obj->cur_cmd.empty()) { 
-               obj->Init();
-               return ; 
+       if (stored_) {
+               stored_ = false;
+               set_input(stored_input);
        }
-       obj->Set(_("Executing:"), obj->cur_cmd);
-       obj->addHistory(obj->cur_cmd);
-       
-       // Split command into function and argument
-       // This is done wrong Asger. Instead of <function argument>
-       // it ends up as <argument function> Queer solution:
-       string arg = obj->cur_cmd;
-       string function;
-       if (contains(arg, " ")) {
-               arg = split(arg, function, ' ');
-               function = strip(function);
-       } else {
-               function = arg;
-               arg.erase();
-       }
-       lyxerr.debug() << "Function: " << function
-                      << "\nArg     : " << arg << endl;
-       // Check if the name is valid (ale)
-       // No, let the dispatch functions handle that.
-       //int action = lyxaction.LookupFunc(function.c_str());
-       //lyxerr.debug(string("minibuffer action: ") + action);
-       //if (action>=0) {
-           // Dispatch only returns requested data for a few commands (ale)
-       string res=obj->owner->getLyXFunc()->Dispatch(function.c_str(),
-                                                      arg.c_str());
-       lyxerr.debug() << "Minibuffer Res: " << res << endl;
-/*     if (!res.empty())
-               if(obj->owner->getLyXFunc()->errorStat())
-                       obj->Set(_("Error:"), _(res.c_str()), string(), 4);
-               else
-                       obj->Set(_("Result:"), _(res.c_str()), string(), 4);
-       else
-               obj->Init();
-*/
-       //} else {
-#ifdef WITH_WARNINGS
-#warning Look at this.
+}
+
+
+void MiniBuffer::stored_set(string const & str) 
+{
+       stored_input = str;
+       stored_ = true;
+       stored_timer.start();
+}
+
+
+int MiniBuffer::peek_event(FL_OBJECT * ob, int event, int key)
+{
+       switch (event) {
+       case FL_KEYBOARD:
+       {
+               char const * tmp = fl_get_input(ob);
+               string input = tmp ? tmp : "";
+               if (stored_) {
+                       stored_timer.stop();
+                       input = stored_input;
+                       set_input(input);
+                       stored_ = false;
+               }
+               
+               switch (key) {
+               case XK_Down:
+                       if (hist_iter != history_->end()) {
+                               ++hist_iter;
+                       }
+                       if (hist_iter == history_->end()) {
+                               // no further history
+                               stored_set(input);
+                               set_input(_("[End of history]"));
+                       } else {
+                               set_input((*hist_iter));
+                       }
+                       return 1; 
+               case XK_Up:
+                       if (hist_iter == history_->begin()) {
+                               // no further history
+                               stored_set(input);
+                               set_input(_("[Beginning of history]"));
+                       } else {
+                               --hist_iter;
+                               set_input((*hist_iter));
+                       }
+                       return 1; 
+               case 9:
+               case XK_Tab:
+               {
+                       // Completion handling.
+                       
+                       vector<string> comp;
+                       lyx::copy_if(completion_.begin(),
+                                    completion_.end(),
+                                    std::back_inserter(comp), prefix(input));
+
+                       if (comp.empty()) {
+                               // No matches
+                               string const tmp = input + _(" [no match]");
+                               stored_set(input);
+                               set_input(tmp);
+                       } else if (comp.size() == 1) {
+                               // Perfect match
+                               string const tmp =
+                                       comp[0] + _(" [sole completion]");
+                               stored_set(comp[0]);
+                               set_input(tmp);
+                       } else {
+                               // More that one match
+                               // Find maximal avaliable prefix
+                               string const tmp = comp[0];
+                               string test(input);
+                               test += tmp[test.length()];
+                               while (test.length() < tmp.length()) {
+                                       vector<string> vtmp;
+                                       lyx::copy_if(comp.begin(),
+                                                    comp.end(),
+                                                    std::back_inserter(vtmp),
+                                                    prefix(test));
+                                       if (vtmp.size() != comp.size()) {
+                                               test.erase(test.length() - 1);
+                                               break;
+                                       }
+                                       test += tmp[test.length()];
+                               }
+                               set_input(test);
+                               
+                               // How should the possible matches
+                               // be visualized?
+                               std::copy(comp.begin(), comp.end(),
+                                         std::ostream_iterator<string>(std::cerr, "\n"));
+                       }
+                       return 1; 
+               }
+               case 27:
+               case XK_Escape:
+                       // Abort
+                       owner_->view()->focus(true);
+                       init();
+                       deactivate();
+                       //escape.emit();
+                       return 1; 
+               case 13:
+               case XK_Return:
+               {
+#if 0
+                       // This will go in again in a little while
+                       // we need to be able to declare what types
+                       // of argumetns LFUN's should have first. (Lgb)
+                       // First check for match
+                       vector<string>::const_iterator cit =
+                               std::find(completion_.begin(),
+                                         completion_.end(),
+                                         input);
+                       if (cit == completion_.end()) {
+                               // no such func/item
+                               stored_set(input);
+                               string const tmp = input + _(" [no match]");
+                               set_input(tmp);
+                       } else {
+#endif
+                               // Return the inputted string
+                               deactivate();
+                               owner_->view()->focus(true);
+                               history_->push_back(input);
+                               stringReady.emit(input);
+# if 0
+                       }
 #endif
-       //obj->Set(_("Cannot find function"), function, "!");
-       obj->shows_no_match = false;
-       //}
+                       return 1;
+               }
+               case XK_space:
+               {
+                       // Depending on the input state spaces might not
+                       // be allowed.
+                       switch (state_) {
+                       case spaces:
+                               return 0;
+                       case nospaces:
+                       {
+                               stored_set(input);
+                               string const tmp = input + _(" [no match]");
+                               set_input(tmp);
+                               return 1;
+                       }
+                       }
+                       
+               }
+               
+               default:
+                       return 0;
+               }
+       }
+       default:
+               //lyxerr << "Unhandled minibuffer event!" << endl;
+               break;
+       }
+       
+       return 0;
+}
 
-       return ;
+
+extern "C" {
+       
+       static
+       int C_MiniBuffer_peek_event(FL_OBJECT * ob, int event, 
+                                   FL_Coord, FL_Coord,
+                                   int key, void * /*xev*/)
+       {
+               MiniBuffer * mini = static_cast<MiniBuffer*>(ob->u_vdata);
+               return mini->peek_event(ob, event, key);
+       }
+       
 }
 
 
-void MiniBuffer::ExecCommand()
+void MiniBuffer::prepare()
 {
        text.erase();
-       fl_set_input(the_buffer, "");
-       fl_set_focus_object(owner->getForm(),the_buffer);
+       set_input("");
+       activate();
+       fl_set_focus_object(static_cast<XFormsView *>(owner_)->getForm(),
+                           the_buffer);
 }
 
 
-FL_OBJECT *MiniBuffer::add(int type, FL_Coord x, FL_Coord y,
+FL_OBJECT * MiniBuffer::add(int type, FL_Coord x, FL_Coord y,
                           FL_Coord w, FL_Coord h)
 {
-       FL_OBJECT *obj;
+       FL_OBJECT * obj;
        
-       the_buffer = obj = fl_add_input(type,x,y,w,h,text.c_str());
-        fl_set_object_boxtype(obj,FL_DOWN_BOX);
+       the_buffer = obj = fl_add_input(type, x, y, w, h, text.c_str());
+        fl_set_object_boxtype(obj, FL_DOWN_BOX);
         fl_set_object_resize(obj, FL_RESIZE_ALL);
         fl_set_object_gravity(obj, SouthWestGravity, SouthEastGravity);
-        fl_set_object_color(obj,FL_MCOL,FL_MCOL);
-        fl_set_object_lsize(obj,FL_NORMAL_SIZE);
-       fl_set_object_callback(obj,ExecutingCB, 0);
-
+        fl_set_object_color(obj, FL_MCOL, FL_MCOL);
+        fl_set_object_lsize(obj, FL_NORMAL_SIZE);
+       
        // To intercept Up, Down, Table for history
-        fl_set_object_prehandler(obj, peek_event);
-        obj->u_vdata = (void*)this;
+        fl_set_object_prehandler(obj, C_MiniBuffer_peek_event);
+        obj->u_vdata = this;
         obj->wantkey = FL_KEY_TAB;
-       
-       // timer
-       timer = fl_add_timer(FL_HIDDEN_TIMER, 0,0,0,0, "Timer");
-       fl_set_object_callback(timer, TimerCB, (long)this);
-       fl_set_input(the_buffer, text.c_str());
 
+       set_input(text);
+       
        return obj;
 }
 
 
-// Added optional arg `delay_secs', defaults to 4.
-//When 0, no timeout is done. RVDK_PATCH_5 
-void MiniBuffer::Set(string const& s1, string const& s2,
-                    string const& s3, int delay_secs)
+void MiniBuffer::message(string const & str) 
 {
-       setTimer(delay_secs);
-
-       string ntext = strip(s1 + ' ' + s2 + ' ' + s3);
-
+       timer.restart();
+       string const ntext = strip(str);
        if (!the_buffer->focus) {
-               fl_set_input(the_buffer, ntext.c_str());
-               XFlush(fl_display);
+               set_input(ntext);
                text = ntext;
        }
 }
 
 
-void MiniBuffer::Init()
+void MiniBuffer::messagePush(string const & str) 
 {
-       // If we have focus, we don't want to change anything.
-       if (the_buffer->focus)
-               return;
+       text_stored = text;
+       message(str);
+}
 
-       // When meta-fake key is pressed, show the key sequence so far + "M-".
-       if (owner->getLyXFunc()->wasMetaKey()) {
-               text = owner->getLyXFunc()->keyseqStr();
-               text += " M-";
-       }
 
-       // Else, when a non-complete key sequence is pressed,
-       // show the available options.
-       else if (owner->getLyXFunc()->keyseqUncomplete()) 
-               text = owner->getLyXFunc()->keyseqOptions();
-   
-       // Else, show the buffer state.
-       else if (owner->currentView()->available()) {
-                       string nicename =
-                               MakeDisplayPath(owner->currentBuffer()->
-                                               getFileName());
-                       // Should we do this instead? (kindo like emacs)
-                       // leaves more room for other information
-                       text = "LyX: ";
-                       text += nicename;
-                       if (owner->currentBuffer()->lyxvc.inUse()) {
-                               text += " [RCS:";
-                               text += owner->currentBuffer()->lyxvc.getVersion();
-                               text += ' ';
-                               text += owner->currentBuffer()->lyxvc.getLocker();
-                               if (owner->currentBuffer()->isReadonly())
-                                       text += " (RO)";
-                               text += ']';
-                       } else if (owner->currentBuffer()->isReadonly())
-                               text += " [RO]";
-                       if (!owner->currentBuffer()->isLyxClean())
-                               text += _(" (Changed)");
-       } else {
-               if (text != _("Welcome to LyX!")) // this is a hack
-                       text = _("* No document open *");
+void MiniBuffer::messagePop()
+{
+       if (!text_stored.empty()) {
+               message(text_stored);
+               text_stored.erase();
        }
-       
+}
 
-       fl_set_input(the_buffer, text.c_str());
-       setTimer(0);
-       XFlush(fl_display);
+
+void MiniBuffer::addSet(string const & s1, string const & s2)
+{
+       string const str = text + ' ' +  s1 + ' ' + s2;
+       message(str);
 }
 
 
-// allows to store and reset the contents one time. Usefull for
-// status messages like "load font" (Matthias)
-void MiniBuffer::Store()
+void MiniBuffer::getString(State spaces,
+                          vector<string> const & completion,
+                          vector<string> & history)
 {
-       text_stored = fl_get_input(the_buffer);
+       state_ = spaces;
+       completion_ = completion;
+       history_ = &history;
+       hist_iter = history_->end();
+       prepare();
 }
 
 
-void MiniBuffer::Reset()
+void MiniBuffer::init()
 {
-       if (!text_stored.empty()){
-               Set(text_stored);
-               text_stored.erase();
-       }
+       // If we have focus, we don't want to change anything.
+       if (the_buffer->focus)
+               return;
+
+       timeout.emit();
+       timer.stop();
 }
 
-void MiniBuffer::Activate()
+
+void MiniBuffer::activate()
 {
        fl_activate_object(the_buffer);
-       fl_redraw_object(the_buffer);
+       redraw();
 }
 
-void MiniBuffer::Deactivate()
+
+void MiniBuffer::deactivate()
 {
+       redraw();
        fl_deactivate_object(the_buffer);
+       XFlush(fl_display);
 }
 
 
-// This is not as dirty as it seems, the hidden buttons removed by this
-// function were just kludges for an uncomplete keyboard callback (ale)
-int MiniBuffer::peek_event(FL_OBJECT *ob, int event, FL_Coord, FL_Coord,
-                          int key, void */*xev*/)
+void MiniBuffer::redraw() 
 {
-       MiniBuffer *mini = (MiniBuffer*)ob->u_vdata;
-       
-       if (event==FL_KEYBOARD){
-               switch (key) {
-               case XK_Down:
-                       mini->history_idx++;
-                       if (!mini->getHistory().empty()) {
-                               fl_set_input(ob, mini->getHistory().c_str());
-                       } else
-                               mini->history_idx--;
-                       return 1; 
-               case XK_Up:
-                       if (mini->history_idx > 0) mini->history_idx--;
-                       fl_set_input(ob, mini->getHistory().c_str());
-                       return 1; 
-               case 9:
-               case XK_Tab:
-               {
-                       // complete or increment the command
-                       const char *s = lyxaction.getApproxFuncName(fl_get_input(ob));
-                       if (s && s[0])
-                               fl_set_input(ob, s);
-                       return 1; 
-               }
-               case 27:
-               case XK_Escape:
-                       // Abort
-                       fl_set_focus_object(mini->owner->getForm(),
-                                           mini->owner->currentView()->getWorkArea());
-                       mini->Init();
-                       return 1; 
-               case 13:
-               case XK_Return:
-                       // Execute a command. 
-                       mini->cur_cmd = string(fl_get_input(ob));
-                       ExecutingCB(ob, 0);
-                       return 1;
-               default:
-                       return 0;
-               }
-       }
-       return 0;
+       fl_redraw_object(the_buffer);
+       XFlush(fl_display);
 }
 
+
+void MiniBuffer::set_input(string const & str)
+{
+       fl_set_input(the_buffer, str.c_str());
+       XFlush(fl_display);
+}