ede/elma/ElmaWindow.cpp

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/*
* $Id$
*
* ELMA, Ede Login MAnager
* Part of Equinox Desktop Environment (EDE).
* Copyright (c) 2008 EDE Authors.
*
* This program is licensed under terms of the
* GNU General Public License version 2 or newer.
* See COPYING for details.
*/
#include <FL/Fl.H>
#include <edelib/Debug.h>
#include <sys/types.h>
#include <pwd.h>
#include "ElmaWindow.h"
#include "Background.h"
#include "TextArea.h"
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#include "Theme.h"
#define USER_AND_PASS_BOX_VISIBLE 1
#define USER_OR_PASS_BOX_VISIBLE 2
static void timeout_cb(void* e) {
ElmaWindow* win = (ElmaWindow*)e;
win->allow_input();
}
ElmaWindow::ElmaWindow(int W, int H) : Fl_Double_Window(0, 0, W, H),
bkg(0), user_in(0), pass_in(0), error_display(0), info_display(0) {
deny_mode = false;
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box_mode = USER_AND_PASS_BOX_VISIBLE;
}
ElmaWindow::~ElmaWindow() {
}
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bool ElmaWindow::create_window(ElmaTheme* et) {
EASSERT(et != NULL);
begin();
bkg = new Background(0, 0, w(), h());
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if(!bkg->load_images(et->background.c_str(), et->panel.c_str()))
return false;
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bkg->panel_pos(et->panel_x, et->panel_y);
ThemeBox* tb;
tb = et->user;
user_in = new TextArea(tb->x, tb->y, tb->w, tb->h);
if(tb->label)
user_in->label(tb->label->c_str());
user_in->labelcolor(FL_WHITE);
user_in->textfont(FL_HELVETICA_BOLD);
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user_in->textsize(tb->font_size);
tb = et->pass;
pass_in = new TextArea(tb->x, tb->y, tb->w, tb->h);
if(tb->label)
pass_in->label(tb->label->c_str());
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pass_in->type(FL_SECRET_INPUT);
pass_in->labelcolor(FL_WHITE);
pass_in->textfont(FL_HELVETICA_BOLD);
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pass_in->textsize(tb->font_size);
/*
* If username box and password box are at the same place, hide
* password box. With this, password box will be shown when user
* press enter on username box and reverse.
*/
if(pass_in->x() == user_in->x() && pass_in->y() == user_in->y()) {
box_mode = USER_OR_PASS_BOX_VISIBLE;
pass_in->hide();
}
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tb = et->error;
error_display = new Fl_Box(tb->x, tb->y, tb->w, tb->h);
error_display->align(FL_ALIGN_INSIDE | FL_ALIGN_LEFT | FL_ALIGN_CLIP);
error_display->labelcolor(FL_WHITE);
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error_display->labelsize(tb->font_size);
error_display->hide();
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tb = et->info;
info_display = new Fl_Box(tb->x, tb->y, tb->w, tb->h);
info_display->align(FL_ALIGN_INSIDE | FL_ALIGN_LEFT | FL_ALIGN_CLIP);
info_display->labelcolor(FL_GRAY);
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if(tb->label)
info_display->label(tb->label->c_str());
end();
return true;
}
void ElmaWindow::validate_user(void) {
EDEBUG("username: %s\n", user_in->value() ? user_in->value() : "none");
EDEBUG("password: %s\n", pass_in->value() ? pass_in->value() : "none");
error_display->show();
error_display->label("Bad username or password");
deny_input();
Fl::add_timeout(3.0, timeout_cb, this);
}
void ElmaWindow::allow_input(void) {
deny_mode = false;
if(error_display->visible()) {
error_display->hide();
error_display->label(0);
}
if(user_in->visible())
user_in->activate();
if(pass_in->visible())
pass_in->activate();
}
void ElmaWindow::deny_input(void) {
deny_mode = true;
if(user_in->visible())
user_in->deactivate();
if(pass_in->visible())
pass_in->deactivate();
}
int ElmaWindow::handle(int event) {
if(event == FL_KEYBOARD) {
if(deny_mode)
return 1;
if(Fl::event_key() == FL_Enter) {
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if(box_mode == USER_AND_PASS_BOX_VISIBLE) {
if(Fl::focus() == user_in)
Fl::focus(pass_in);
else {
validate_user();
// don't remember password
pass_in->value(0);
Fl::focus(user_in);
}
} else {
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if(user_in->visible()) {
user_in->hide();
pass_in->show();
// don't remember password
pass_in->value(0);
} else {
user_in->show();
pass_in->hide();
validate_user();
}
}
return 1;
}
}
return Fl_Double_Window::handle(event);
}