X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fminibuffer.C;h=92a307dfc73d5040f4d3a1ddfc9496d567efbf61;hb=98c966c64594611e469313314abd1e59524adb4a;hp=b253786c747707fabc0892ad31b78a63ebfb3b0b;hpb=5362b33b0f263cec4218af04b5eebc73218dffe9;p=lyx.git

diff --git a/src/minibuffer.C b/src/minibuffer.C
index b253786c74..92a307dfc7 100644
--- a/src/minibuffer.C
+++ b/src/minibuffer.C
@@ -3,252 +3,426 @@
  *                 The MiniBuffer Class
  *                 read minibuffer.h for more
  *                 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
 
+// FIXME: temporary
+#include "frontends/xforms/DropDown.h"
+
+#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"
+#include "frontends/Timeout.h"
+
+#include <cctype>
+
+using SigC::slot;
+using std::vector;
+using std::back_inserter;
+using std::find;
 
-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)
+{
+	add(FL_NORMAL_INPUT, x, y, h, w);
+
+	timer = new Timeout(6000);
+	timer->timeout.connect(slot(this, &MiniBuffer::init));
+
+	stored_timer = new Timeout(1500);
+	stored_timer->timeout.connect(slot(this, &MiniBuffer::stored_slot));
+	deactivate();
+}
+
+
+// thanks for nothing, xforms (recursive creation not allowed)
+void MiniBuffer::dd_init()
+{
+	dropdown_ = new DropDown(owner_, the_buffer);
+	dropdown_->result.connect(slot(this, &MiniBuffer::set_complete_input));
+	dropdown_->keypress.connect(slot(this, &MiniBuffer::append_char));
+}
+
+
+MiniBuffer::~MiniBuffer()
 {
-	MiniBuffer *obj= (MiniBuffer*)tmp;
-	obj->Init();
+	delete timer;
+	delete stored_timer;
+	delete dropdown_;
 }
 
 
-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
-	string arg = obj->cur_cmd;
-	string function;
-	if (contains(arg, " ")) {
-		arg = split(arg, function, ' ');
-		function = strip(function);
-	} else {
-		function = arg;
-		arg.clear();
+}
+
+
+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_UNFOCUS:
+		deactivate();
+		break;
+	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(),
+				     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);
+				if (tmp.length() > test.length())
+					test += tmp[test.length()];
+				while (test.length() < tmp.length()) {
+					vector<string> vtmp;
+					lyx::copy_if(comp.begin(),
+						     comp.end(),
+						     back_inserter(vtmp),
+						     prefix(test));
+					if (vtmp.size() != comp.size()) {
+						test.erase(test.length() - 1);
+						break;
+					}
+					test += tmp[test.length()];
+				}
+				set_input(test);
+
+				int x,y,w,h;
+				fl_get_wingeometry(fl_get_real_object_window(the_buffer),
+					&x, &y, &w, &h);
+
+				// asynchronous completion
+				int const air = the_buffer->x;
+				x += air;
+				y += h - (the_buffer->h + air);
+				w = the_buffer->w;
+				dropdown_->select(comp, x, y, w);
+			}
+			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 =
+				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);
+				if (!input.empty()) {
+					history_->push_back(input);
+				}
+				stringReady.emit(input);
+# if 0
+			}
+#endif
+			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;
 	}
-	lyxerr.debug() << "Function: " << function
-		       << "\nArg     : " << arg << endl;
 
-	// 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;
-	obj->shows_no_match = false;
+	return 0;
+}
+
+
+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);
+	}
 
-	return ;
 }
 
 
-void MiniBuffer::ExecCommand()
+void MiniBuffer::prepare()
 {
-	text.clear();
-	fl_set_input(the_buffer, "");
-	fl_set_focus_object(owner->getForm(),the_buffer);
+	text.erase();
+	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;
-	
-	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_OBJECT * obj;
+
+	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);
 
 	// To intercept Up, Down, Table for history
-        fl_set_object_prehandler(obj, peek_event);
-        obj->u_vdata = (void*)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());
+	fl_set_object_prehandler(obj, C_MiniBuffer_peek_event);
+	obj->u_vdata = this;
+	obj->wantkey = FL_KEY_TAB;
+
+	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.clear();
-	}
+	// 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;
-		}
+	fl_redraw_object(the_buffer);
+	XFlush(fl_display);
+}
+
+
+void MiniBuffer::set_complete_input(string const & str)
+{
+	if (!str.empty()) {
+		// add a space so the user can type
+		// an argument immediately
+		set_input(str + " ");
 	}
-	return 0;
 }
 
+
+void MiniBuffer::append_char(char c)
+{
+	if (!c || !isprint(c))
+		return;
+
+	char const * tmp = fl_get_input(the_buffer);
+	string str = tmp ? tmp : "";
+
+	str += c;
+
+	fl_set_input(the_buffer, str.c_str());
+}
+
+
+void MiniBuffer::set_input(string const & str)
+{
+	fl_set_input(the_buffer, str.c_str());
+	XFlush(fl_display);
+}