/* -*-C++-*-    $NetBSD: rootwindow.cpp,v 1.23 2015/07/11 10:32:45 kamil Exp $  */

/*-
* Copyright (c) 2001, 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <hpcmenu.h>
#include <menu/window.h>
#include <menu/tabwindow.h>
#include <menu/rootwindow.h>
#include <res/resource.h>
#include "../binary/build_number.h"
#include <console.h>

//
// root window
//
RootWindow::RootWindow(HpcBootApp &app)
       : Window(app)
{
       _boot_button    = 0;
       _base           = 0;
       _main           = 0;
       _option = 0;
       _console        = 0;
}

RootWindow::~RootWindow()
{
       if (_boot_button)
               delete _boot_button;
       if (_cancel_button)
               delete _cancel_button;
       if (_progress_bar)
               delete _progress_bar;
       if (_main)
               delete _main;
       if (_option)
               delete _option;
       if (_console)
               delete _console;
       if (_base)
               delete _base;
}

BOOL
RootWindow::create(LPCREATESTRUCT aux)
{
       TCHAR app_name[32];
       // Root window's create don't called by Window Procedure.
       // so aux is NULL
       HINSTANCE inst = _app._instance;
       TCHAR *wc_name = reinterpret_cast <TCHAR *>
           (LoadString(inst, IDS_HPCMENU, 0, 0));
       wsprintf(app_name, TEXT("%s Build %d"), wc_name, HPCBOOT_BUILD_NUMBER);

       _window = CreateWindow(wc_name, app_name, WS_VISIBLE,
           CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
           0, 0, inst, this);
       if (!_window)
               return FALSE;

       HpcMenuInterface &menu = HpcMenuInterface::Instance();
       if (menu._pref.auto_boot > 0)
               SetTimer(_window, IDD_TIMER, menu._pref.auto_boot * 1000, 0);

       ShowWindow(_window, SW_SHOW);
       UpdateWindow(_window);

       return TRUE;
}

BOOL
RootWindow::proc(HWND w, UINT msg, WPARAM wparam, LPARAM lparam)
{
       LPCREATESTRUCT aux = reinterpret_cast <LPCREATESTRUCT>(lparam);
       HpcMenuInterface &menu = HpcMenuInterface::Instance();

       switch(msg) {
       default: // message can't handle.
               return FALSE;
       case WM_CREATE:
               WMCreate(w, aux);
               break;
       case WM_PAINT:
               WMPaint(w, aux);
               break;
       case WM_ENTERMENULOOP:
               SaveFocus();
               break;
       case WM_EXITMENULOOP:
               RestoreFocus();
               break;
       case WM_ACTIVATE:
               if ((UINT)LOWORD(wparam) == WA_INACTIVE)
                       SaveFocus();
               else
                       RestoreFocus();
               break;
       case WM_NOTIFY:
       {
               NMHDR *notify = reinterpret_cast <NMHDR *>(lparam);
               // get current selected tab id
               int tab_id = TabCtrl_GetCurSel(_base->_window);
               // get context
               TC_ITEM tc_item;
               tc_item.mask = TCIF_PARAM;
               TabCtrl_GetItem(_base->_window, tab_id, &tc_item);
               TabWindow *tab = reinterpret_cast <TabWindow *>
                   (tc_item.lParam);
               switch(notify->code) {
               case TCN_SELCHANGING:
                       tab->hide();
                       break;
               case TCN_SELCHANGE:
                       tab->show();
                       break;
               case TCN_KEYDOWN: {
                       NMTCKEYDOWN *key = reinterpret_cast
                               <NMTCKEYDOWN *>(lparam);
                       return _base->focusManagerHook(key->wVKey, key->flags,
                                               _cancel_button->_window);
                   }
               }
       }
       break;
       case WM_TIMER:
               disableTimer();
               goto boot;
       case WM_COMMAND:
               switch(wparam)
               {
               case IDC_BOOTBUTTON:
                       // inquire current options.
                       menu.get_options();
                       if (menu._pref.safety_message) {
                               UINT mb_icon = menu._pref.pause_before_boot ?
                                       MB_ICONQUESTION : MB_ICONWARNING;
                               if (MessageBox(_window,
                                   TEXT("Data in memory will be lost.\nAre you sure?"),
                                   TEXT("WARNING"),
                                   mb_icon | MB_YESNO) != IDYES)
                                       break;
                               UpdateWindow(_window);
                       }
               boot:
                       SendMessage(_progress_bar->_window, PBM_SETPOS, 0, 0);
                       menu.print(TEXT("BOOT START\n"));
                       // inquire current options.
                       menu.get_options();
                       // save options to `hpcboot.cnf'
                       menu.save();
                       // start boot sequence.
                       menu.boot();
                       // NOTREACHED
                       break;
               case IDC_PROGRESSBAR:
                       break;
               case IDC_CANCELBUTTON:
                       PostQuitMessage(0);
                       break;
               }
               break;
       case WM_DESTROY:
               PostQuitMessage(0);
               break;
       }
       return TRUE;
}

void
RootWindow::SaveFocus() {
       _saved_focus = GetFocus();
}

void
RootWindow::RestoreFocus() {
       SetFocus(IsWindowEnabled(_saved_focus) ?
                _saved_focus : _boot_button->_window);
}

void
RootWindow::WMPaint(HWND w, LPCREATESTRUCT aux)
{
       PAINTSTRUCT ps;
       BeginPaint(w, &ps);
       EndPaint(w, &ps);
}

void
RootWindow::WMCreate(HWND w, LPCREATESTRUCT aux)
{
       int cmdbar_height;

       _window = w;
       // Command bar.
       _app._cmdbar = CommandBar_Create(aux->hInstance, w, IDC_CMDBAR);
       CommandBar_AddAdornments(_app._cmdbar, 0, 0);
       cmdbar_height = CommandBar_Height(_app._cmdbar);

       _button_height = cmdbar_height;
       _button_width = BOOT_BUTTON_WIDTH;

       HDC hdc = GetDC(0);
       if (GetDeviceCaps(hdc, HORZRES) > 320)
           _button_width += _button_width/2;
       ReleaseDC(0, hdc);

       RECT rect;
       GetClientRect(w, &rect);
       rect.top += cmdbar_height;

       // BOOT button.
       _boot_button = new BootButton(_app, *this, rect);
       _boot_button->create(aux);
       // CANCEL button.
       _cancel_button = new CancelButton(_app, *this, rect);
       _cancel_button->create(aux);
       // Progress bar
       _progress_bar = new ProgressBar(_app, *this, rect);
       _progress_bar->create(aux);

       // register myself to menu
       HpcMenuInterface::Instance()._root = this;

       rect.top += _button_height;
       // Tab control.
       _base =  new TabWindowBase(_app, w, rect, IDC_BASE);
       _base->create(aux);
       // main/option/console dialog.(register to Menu)
       _main = _base->boot(IDC_BASE_MAIN);
       _option = _base->boot(IDC_BASE_OPTION);
       _console = _base->boot(IDC_BASE_CONSOLE);

       _main->show();
       SetFocus(_boot_button->_window);

       return;
}

void
RootWindow::disableTimer()
{
       KillTimer(_window, IDD_TIMER);
}

BOOL
RootWindow::isDialogMessage(MSG &msg)
{
       HWND tab_window;

       if (_main && IsWindowVisible(_main->_window))
               tab_window = _main->_window;
       else if (_option && IsWindowVisible(_option->_window))
               tab_window = _option->_window;
       else if (_console && IsWindowVisible(_console->_window))
               tab_window = _console->_window;

       if (focusManagerHook(msg, tab_window))
               return TRUE;

       return IsDialogMessage(tab_window, &msg);
}

//
// XXX !!! XXX !!! XXX !!! XXX !!!
//
// WinCE 2.11 doesn't support keyboard focus traversal for nested
// dialogs, so implement poor man focus manager for our root window.
// This function handles focus transition from boot/cancel buttons.
// Transition from the tab-control is done on WM_NOTIFY/TCN_KEYDOWN
// above.
//
// XXX: This is a very smplistic implementation that doesn't handle
// <TAB> auto-repeat count in LOWORD(msg.lParam), WS_GROUP, etc...
//
BOOL
RootWindow::focusManagerHook(MSG &msg, HWND tab_window)
{
       HWND next, prev;
       HWND dst = 0;
       LRESULT dlgcode = 0;

       if (msg.message != WM_KEYDOWN)
               return FALSE;

       if (msg.hwnd == _boot_button->_window) {
               next = _cancel_button->_window;
               prev = _base->_window;
       } else if (msg.hwnd == _cancel_button->_window) {
               next = _base->_window;
               prev = _boot_button->_window;
       } else if (tab_window == 0) {
               return FALSE;
       } else {
               // last focusable control in the tab_window (XXX: WS_GROUP?)
               HWND last = GetNextDlgTabItem(tab_window, NULL, TRUE);
               if (last == NULL ||
                   !(last == msg.hwnd || IsChild(last, msg.hwnd)))
                       return FALSE;
               dlgcode = SendMessage(last, WM_GETDLGCODE, NULL, (LPARAM)&msg);
               next = _base->_window; // out of the tab window
               prev = 0;       // let IsDialogMessage handle it
       }

#if 0 // XXX: breaks tabbing out of the console window
       if (dlgcode & DLGC_WANTALLKEYS)
               return FALSE;
#endif
       switch (msg.wParam) {
       case VK_RIGHT:
       case VK_DOWN:
               if (dlgcode & DLGC_WANTARROWS)
                       return FALSE;
               dst = next;
               break;

       case VK_LEFT:
       case VK_UP:
               if (dlgcode & DLGC_WANTARROWS)
                       return FALSE;
               dst = prev;
               break;

       case VK_TAB:
               if (dlgcode & DLGC_WANTTAB)
                       return FALSE;
               if (GetKeyState(VK_SHIFT) & 0x8000) // Shift-Tab
                       dst = prev;
               else
                       dst = next;
               break;
       }

       if (dst == 0)
               return FALSE;

       SetFocus(dst);
       return TRUE;
}

void
RootWindow::progress(const char *msg)
{

       if (msg)
               Console::Instance()->print(TEXT("[progress] %S\n"), msg);

       SendMessage(_progress_bar->_window, PBM_STEPIT, 0, 0);
}

void
RootWindow::unprogress()
{
       SendMessage(_progress_bar->_window, PBM_SETPOS, 0, 0);
}

//
// BOOT button
//
BOOL
BootButton::create(LPCREATESTRUCT aux)
{
       int cx = _root._button_width;
       int cy = _root._button_height;

       _window = CreateWindow(TEXT("BUTTON"), TEXT("Boot"),
           BS_PUSHBUTTON | BS_NOTIFY |
           WS_VISIBLE | WS_CHILD | WS_TABSTOP,
           _rect.left, _rect.top, cx, cy, _parent_window,
           reinterpret_cast <HMENU>(IDC_BOOTBUTTON),
           aux->hInstance,
           NULL);

       return IsWindow(_window) ? TRUE : FALSE;
}

//
// CANCEL button
//
BOOL
CancelButton::create(LPCREATESTRUCT aux)
{
       int cx = _root._button_width;
       int cy = _root._button_height;
       int x = _rect.right - _root._button_width;

       _window = CreateWindow(TEXT("BUTTON"), TEXT("Cancel"),
           BS_PUSHBUTTON | BS_NOTIFY | WS_TABSTOP |
           WS_VISIBLE | WS_CHILD,
           x, _rect.top, cx, cy, _parent_window,
           reinterpret_cast <HMENU>(IDC_CANCELBUTTON),
           aux->hInstance,
           NULL);

       return IsWindow(_window) ? TRUE : FALSE;
}

//
// PROGRESS BAR
//
BOOL
ProgressBar::create(LPCREATESTRUCT aux)
{
       int cx = _rect.right - _rect.left - _root._button_width * 2;
       int cy = _root._button_height;
       int x = _rect.left + _root._button_width;
       _window = CreateWindowEx(WS_EX_CLIENTEDGE,
           PROGRESS_CLASS, TEXT(""),
           PBS_SMOOTH | WS_VISIBLE | WS_CHILD,
           x, _rect.top, cx, cy, _parent_window,
           reinterpret_cast <HMENU>(IDC_PROGRESSBAR),
           aux->hInstance, NULL);
       SendMessage(_window, PBM_SETRANGE, 0, MAKELPARAM(0, 11));
       SendMessage(_window, PBM_SETSTEP, 1, 0);
       SendMessage(_window, PBM_SETPOS, 0, 0);

       return IsWindow(_window) ? TRUE : FALSE;
}

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