--- /dev/null
+/*
+ * Copyright 2003, 2004, 2005 Martin Fuchs
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+ //
+ // Explorer clone
+ //
+ // taskbar.cpp
+ //
+ // Martin Fuchs, 16.08.2003
+ //
+
+
+#include <precomp.h>
+
+#include "taskbar.h"
+#include "traynotify.h" // for NOTIFYAREA_WIDTH_DEF
+
+
+DynamicFct<BOOL (WINAPI*)(HWND hwnd)> g_SetTaskmanWindow(TEXT("user32"), "SetTaskmanWindow");
+DynamicFct<BOOL (WINAPI*)(HWND hwnd)> g_RegisterShellHookWindow(TEXT("user32"), "RegisterShellHookWindow");
+DynamicFct<BOOL (WINAPI*)(HWND hwnd)> g_DeregisterShellHookWindow(TEXT("user32"), "DeregisterShellHookWindow");
+
+/*
+DynamicFct<BOOL (WINAPI*)(HWND hWnd, DWORD dwType)> g_RegisterShellHook(TEXT("shell32"), (LPCSTR)0xb5);
+
+ // constants for RegisterShellHook()
+#define RSH_UNREGISTER 0
+#define RSH_REGISTER 1
+#define RSH_REGISTER_PROGMAN 2
+#define RSH_REGISTER_TASKMAN 3
+*/
+
+
+TaskBarEntry::TaskBarEntry()
+{
+ _id = 0;
+ _hbmp = 0;
+ _bmp_idx = 0;
+ _used = 0;
+ _btn_idx = 0;
+ _fsState = 0;
+}
+
+TaskBarMap::~TaskBarMap()
+{
+ while(!empty()) {
+ iterator it = begin();
+ DeleteBitmap(it->second._hbmp);
+ erase(it);
+ }
+}
+
+
+TaskBar::TaskBar(HWND hwnd)
+ : super(hwnd),
+ WM_SHELLHOOK(RegisterWindowMessage(WINMSG_SHELLHOOK))
+{
+ _last_btn_width = 0;
+
+ _mmMetrics_org.cbSize = sizeof(MINIMIZEDMETRICS);
+
+ SystemParametersInfo(SPI_GETMINIMIZEDMETRICS, sizeof(_mmMetrics_org), &_mmMetrics_org, 0);
+
+ // configure the window manager to hide windows when they are minimized
+ // This is neccessary to enable shell hook messages.
+ if (!(_mmMetrics_org.iArrange & ARW_HIDE)) {
+ MINIMIZEDMETRICS _mmMetrics_new = _mmMetrics_org;
+
+ _mmMetrics_new.iArrange |= ARW_HIDE;
+
+ SystemParametersInfo(SPI_SETMINIMIZEDMETRICS, sizeof(_mmMetrics_new), &_mmMetrics_new, 0);
+ }
+}
+
+TaskBar::~TaskBar()
+{
+// if (g_RegisterShellHook)
+// (*g_RegisterShellHook)(_hwnd, RSH_UNREGISTER);
+
+ if (g_DeregisterShellHookWindow)
+ (*g_DeregisterShellHookWindow)(_hwnd);
+ else
+ KillTimer(_hwnd, 0);
+
+ if (g_SetTaskmanWindow)
+ (*g_SetTaskmanWindow)(0);
+
+ SystemParametersInfo(SPI_GETMINIMIZEDMETRICS, sizeof(_mmMetrics_org), &_mmMetrics_org, 0);
+}
+
+HWND TaskBar::Create(HWND hwndParent)
+{
+ ClientRect clnt(hwndParent);
+
+ int taskbar_pos = 80; // This start position will be adjusted in DesktopBar::Resize().
+
+ return Window::Create(WINDOW_CREATOR(TaskBar), 0,
+ BtnWindowClass(CLASSNAME_TASKBAR), TITLE_TASKBAR,
+ WS_CHILD|WS_VISIBLE | CCS_TOP|CCS_NODIVIDER|CCS_NORESIZE,
+ taskbar_pos, 0, clnt.right-taskbar_pos-(NOTIFYAREA_WIDTH_DEF+1), clnt.bottom, hwndParent);
+}
+
+LRESULT TaskBar::Init(LPCREATESTRUCT pcs)
+{
+ if (super::Init(pcs))
+ return 1;
+
+ /* FIXME: There's an internal padding for non-flat toolbar. Get rid of it somehow. */
+ _htoolbar = CreateToolbarEx(_hwnd,
+ WS_CHILD|WS_VISIBLE|WS_CLIPSIBLINGS|WS_CLIPCHILDREN|
+ CCS_TOP|CCS_NODIVIDER|TBSTYLE_LIST|TBSTYLE_TOOLTIPS|TBSTYLE_WRAPABLE,//|TBSTYLE_AUTOSIZE
+ IDW_TASKTOOLBAR, 0, 0, 0, NULL, 0, 0, 0, 16, 16, sizeof(TBBUTTON));
+
+ SendMessage(_htoolbar, TB_SETBUTTONWIDTH, 0, MAKELONG(TASKBUTTONWIDTH_MAX,TASKBUTTONWIDTH_MAX));
+ //SendMessage(_htoolbar, TB_SETEXTENDEDSTYLE, 0, TBSTYLE_EX_MIXEDBUTTONS);
+ //SendMessage(_htoolbar, TB_SETDRAWTEXTFLAGS, DT_CENTER|DT_VCENTER, DT_CENTER|DT_VCENTER);
+ //SetWindowFont(_htoolbar, GetStockFont(ANSI_VAR_FONT), FALSE);
+ //SendMessage(_htoolbar, TB_SETPADDING, 0, MAKELPARAM(8,8));
+
+ // set metrics for the Taskbar toolbar to enable button spacing
+ TBMETRICS metrics;
+
+ metrics.cbSize = sizeof(TBMETRICS);
+ metrics.dwMask = TBMF_BARPAD | TBMF_BUTTONSPACING;
+ metrics.cxBarPad = 0;
+ metrics.cyBarPad = 0;
+ metrics.cxButtonSpacing = 3;
+ metrics.cyButtonSpacing = 3;
+
+ SendMessage(_htoolbar, TB_SETMETRICS, 0, (LPARAM)&metrics);
+
+ _next_id = IDC_FIRST_APP;
+
+ // register the taskbar window as task manager window to make the following call to RegisterShellHookWindow working
+ if (g_SetTaskmanWindow)
+ (*g_SetTaskmanWindow)(_hwnd);
+
+ if (g_RegisterShellHookWindow) {
+ LOG(TEXT("Using shell hooks for notification of shell events."));
+
+ (*g_RegisterShellHookWindow)(_hwnd);
+ } else {
+ LOG(TEXT("Shell hooks not available."));
+
+ SetTimer(_hwnd, 0, 200, NULL);
+ }
+
+/* Alternatively we could use the RegisterShellHook() function in SHELL32, but this is not yet implemented in the WINE code.
+ if (g_RegisterShellHook) {
+ (*g_RegisterShellHook)(0, RSH_REGISTER);
+
+ if ((HIWORD(GetVersion())>>14) == W_VER_NT)
+ (*g_RegisterShellHook)(_hwnd, RSH_REGISTER_TASKMAN);
+ else
+ (*g_RegisterShellHook)(_hwnd, RSH_REGISTER);
+ }
+*/
+ Refresh();
+
+ return 0;
+}
+
+LRESULT TaskBar::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
+{
+ switch(nmsg) {
+ case WM_SIZE:
+ SendMessage(_htoolbar, WM_SIZE, 0, 0);
+ ResizeButtons();
+ break;
+
+ case WM_TIMER:
+ Refresh();
+ return 0;
+
+ case WM_CONTEXTMENU: {
+ Point pt(lparam);
+ ScreenToClient(_htoolbar, &pt);
+
+ if ((HWND)wparam==_htoolbar && SendMessage(_htoolbar, TB_HITTEST, 0, (LPARAM)&pt)>=0)
+ break; // avoid displaying context menu for application button _and_ desktop bar at the same time
+
+ goto def;}
+
+ case PM_GET_LAST_ACTIVE:
+ return (LRESULT)(HWND)_last_foreground_wnd;
+
+ case WM_SYSCOLORCHANGE:
+ SendMessage(_htoolbar, WM_SYSCOLORCHANGE, 0, 0);
+ break;
+
+ default: def:
+ if (nmsg == WM_SHELLHOOK) {
+ switch(wparam) {
+ case HSHELL_WINDOWCREATED:
+ case HSHELL_WINDOWDESTROYED:
+ case HSHELL_WINDOWACTIVATED:
+ case HSHELL_REDRAW:
+#ifdef HSHELL_FLASH
+ case HSHELL_FLASH:
+#endif
+#ifdef HSHELL_RUDEAPPACTIVATED
+ case HSHELL_RUDEAPPACTIVATED:
+#endif
+ Refresh();
+ break;
+ }
+ } else {
+ return super::WndProc(nmsg, wparam, lparam);
+ }
+ }
+
+ return 0;
+}
+
+int TaskBar::Command(int id, int code)
+{
+ TaskBarMap::iterator found = _map.find_id(id);
+
+ if (found != _map.end()) {
+ ActivateApp(found);
+ return 0;
+ }
+
+ return super::Command(id, code);
+}
+
+int TaskBar::Notify(int id, NMHDR* pnmh)
+{
+ if (pnmh->hwndFrom == _htoolbar)
+ switch(pnmh->code) {
+ case NM_RCLICK: {
+ TBBUTTONINFO btninfo;
+ TaskBarMap::iterator it;
+ Point pt(GetMessagePos());
+ ScreenToClient(_htoolbar, &pt);
+
+ btninfo.cbSize = sizeof(TBBUTTONINFO);
+ btninfo.dwMask = TBIF_BYINDEX|TBIF_COMMAND;
+
+ int idx = SendMessage(_htoolbar, TB_HITTEST, 0, (LPARAM)&pt);
+
+ if (idx>=0 &&
+ SendMessage(_htoolbar, TB_GETBUTTONINFO, idx, (LPARAM)&btninfo)!=-1 &&
+ (it=_map.find_id(btninfo.idCommand))!=_map.end()) {
+ //TaskBarEntry& entry = it->second;
+
+ ActivateApp(it, false, false); // don't restore minimized windows on right button click
+
+ static DynamicFct<DWORD(STDAPICALLTYPE*)(RESTRICTIONS)> pSHRestricted(TEXT("SHELL32"), "SHRestricted");
+
+ if (pSHRestricted && !(*pSHRestricted)(REST_NOTRAYCONTEXTMENU))
+ ShowAppSystemMenu(it);
+ }
+ break;}
+
+ default:
+ return super::Notify(id, pnmh);
+ }
+
+ return 0;
+}
+
+
+void TaskBar::ActivateApp(TaskBarMap::iterator it, bool can_minimize, bool can_restore)
+{
+ HWND hwnd = it->first;
+
+ bool minimize_it = can_minimize && !IsIconic(hwnd) &&
+ (hwnd==GetForegroundWindow() || hwnd==_last_foreground_wnd);
+
+ // switch to selected application window
+ if (can_restore && !minimize_it)
+ if (IsIconic(hwnd))
+ PostMessage(hwnd, WM_SYSCOMMAND, SC_RESTORE, 0);
+
+ // In case minimize_it is true, we _have_ to switch to the app before
+ // posting SW_MINIMIZE to be compatible with some applications (e.g. "Sleipnir")
+ SetForegroundWindow(hwnd);
+
+ if (minimize_it) {
+ PostMessage(hwnd, WM_SYSCOMMAND, SC_MINIMIZE, 0);
+ _last_foreground_wnd = 0;
+ } else
+ _last_foreground_wnd = hwnd;
+
+ Refresh();
+}
+
+void TaskBar::ShowAppSystemMenu(TaskBarMap::iterator it)
+{
+ HMENU hmenu = GetSystemMenu(it->first, FALSE);
+
+ if (hmenu) {
+ POINT pt;
+
+ GetCursorPos(&pt);
+ int cmd = TrackPopupMenu(hmenu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON|TPM_RETURNCMD, pt.x, pt.y, 0, _hwnd, NULL);
+
+ if (cmd) {
+ ActivateApp(it, false, false); // reactivate window after the context menu has closed
+ PostMessage(it->first, WM_SYSCOMMAND, cmd, 0);
+ }
+ }
+}
+
+
+HICON get_window_icon_small(HWND hwnd)
+{
+ HICON hIcon = 0;
+
+ SendMessageTimeout(hwnd, WM_GETICON, ICON_SMALL2, 0, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&hIcon);
+
+ if (!hIcon)
+ SendMessageTimeout(hwnd, WM_GETICON, ICON_SMALL, 0, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&hIcon);
+
+ if (!hIcon)
+ SendMessageTimeout(hwnd, WM_GETICON, ICON_BIG, 0, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&hIcon);
+
+ if (!hIcon)
+ hIcon = (HICON)GetClassLongPtr(hwnd, GCL_HICONSM);
+
+ if (!hIcon)
+ hIcon = (HICON)GetClassLongPtr(hwnd, GCL_HICON);
+
+ if (!hIcon)
+ SendMessageTimeout(hwnd, WM_QUERYDRAGICON, 0, 0, 0, 1000, (PDWORD_PTR)&hIcon);
+
+ return hIcon;
+}
+
+HICON get_window_icon_big(HWND hwnd, bool allow_from_class)
+{
+ HICON hIcon = 0;
+
+ SendMessageTimeout(hwnd, WM_GETICON, ICON_BIG, 0, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&hIcon);
+
+ if (!hIcon)
+ SendMessageTimeout(hwnd, WM_GETICON, ICON_SMALL2, 0, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&hIcon);
+
+ if (!hIcon)
+ SendMessageTimeout(hwnd, WM_GETICON, ICON_SMALL, 0, SMTO_ABORTIFHUNG, 1000, (PDWORD_PTR)&hIcon);
+
+ if (allow_from_class) {
+ if (!hIcon)
+ hIcon = (HICON)GetClassLongPtr(hwnd, GCL_HICON);
+
+ if (!hIcon)
+ hIcon = (HICON)GetClassLongPtr(hwnd, GCL_HICONSM);
+ }
+
+ if (!hIcon)
+ SendMessageTimeout(hwnd, WM_QUERYDRAGICON, 0, 0, 0, 1000, (PDWORD_PTR)&hIcon);
+
+ return hIcon;
+}
+
+ // fill task bar with buttons for enumerated top level windows
+BOOL CALLBACK TaskBar::EnumWndProc(HWND hwnd, LPARAM lparam)
+{
+ TaskBar* pThis = (TaskBar*)lparam;
+
+ DWORD style = GetWindowStyle(hwnd);
+ DWORD ex_style = GetWindowExStyle(hwnd);
+
+ if ((style&WS_VISIBLE) && !(ex_style&WS_EX_TOOLWINDOW) &&
+ !GetParent(hwnd) && !GetWindow(hwnd,GW_OWNER)) {
+ TCHAR title[BUFFER_LEN];
+
+ if (!GetWindowText(hwnd, title, BUFFER_LEN))
+ title[0] = '\0';
+
+ TaskBarMap::iterator found = pThis->_map.find(hwnd);
+ int last_id = 0;
+
+ if (found != pThis->_map.end()) {
+ last_id = found->second._id;
+
+ if (!last_id)
+ found->second._id = pThis->_next_id++;
+ } else {
+ HBITMAP hbmp;
+ HICON hIcon = get_window_icon_small(hwnd);
+ BOOL delete_icon = FALSE;
+
+ if (!hIcon) {
+ hIcon = LoadIcon(0, IDI_APPLICATION);
+ delete_icon = TRUE;
+ }
+
+ if (hIcon) {
+ hbmp = create_bitmap_from_icon(hIcon, GetSysColorBrush(COLOR_BTNFACE), WindowCanvas(pThis->_htoolbar));
+ if (delete_icon)
+ DestroyIcon(hIcon); // some icons can be freed, some not - so ignore any error return of DestroyIcon()
+ } else
+ hbmp = 0;
+
+ TBADDBITMAP ab = {0, (UINT_PTR)hbmp};
+ int bmp_idx = SendMessage(pThis->_htoolbar, TB_ADDBITMAP, 1, (LPARAM)&ab);
+
+ TaskBarEntry entry;
+
+ entry._id = pThis->_next_id++;
+ entry._hbmp = hbmp;
+ entry._bmp_idx = bmp_idx;
+ entry._title = title;
+
+ pThis->_map[hwnd] = entry;
+ found = pThis->_map.find(hwnd);
+ }
+
+ TBBUTTON btn = {-2/*I_IMAGENONE*/, 0, TBSTATE_ENABLED/*|TBSTATE_ELLIPSES*/, BTNS_BUTTON, {0, 0}, 0, 0};
+ TaskBarEntry& entry = found->second;
+
+ ++entry._used;
+ btn.idCommand = entry._id;
+
+ HWND foreground = GetForegroundWindow();
+ HWND foreground_owner = GetWindow(foreground, GW_OWNER);
+
+ if (hwnd==foreground || hwnd==foreground_owner) {
+ btn.fsState |= TBSTATE_PRESSED|TBSTATE_CHECKED;
+ pThis->_last_foreground_wnd = hwnd;
+ }
+
+ if (!last_id) {
+ // create new toolbar buttons for new windows
+ if (title[0])
+ btn.iString = (INT_PTR)title;
+
+ btn.iBitmap = entry._bmp_idx;
+ entry._btn_idx = SendMessage(pThis->_htoolbar, TB_BUTTONCOUNT, 0, 0);
+
+ SendMessage(pThis->_htoolbar, TB_INSERTBUTTON, entry._btn_idx, (LPARAM)&btn);
+
+ pThis->ResizeButtons();
+ } else {
+ // refresh attributes of existing buttons
+ if (btn.fsState != entry._fsState)
+ SendMessage(pThis->_htoolbar, TB_SETSTATE, entry._id, MAKELONG(btn.fsState,0));
+
+ if (entry._title != title) {
+ TBBUTTONINFO info;
+
+ info.cbSize = sizeof(TBBUTTONINFO);
+ info.dwMask = TBIF_TEXT;
+ info.pszText = title;
+
+ SendMessage(pThis->_htoolbar, TB_SETBUTTONINFO, entry._id, (LPARAM)&info);
+
+ entry._title = title;
+ }
+ }
+
+ entry._fsState = btn.fsState;
+
+#ifdef __REACTOS__ // now handled by activating the ARW_HIDE flag with SystemParametersInfo(SPI_SETMINIMIZEDMETRICS)
+ // move minimized windows out of sight
+ if (IsIconic(hwnd)) {
+ RECT rect;
+
+ GetWindowRect(hwnd, &rect);
+
+ if (rect.bottom > 0)
+ SetWindowPos(hwnd, 0, -32000, -32000, 0, 0, SWP_NOSIZE|SWP_NOZORDER|SWP_NOACTIVATE);
+ }
+#endif
+ }
+
+ return TRUE;
+}
+
+void TaskBar::Refresh()
+{
+ for(TaskBarMap::iterator it=_map.begin(); it!=_map.end(); ++it)
+ it->second._used = 0;
+
+ EnumWindows(EnumWndProc, (LPARAM)this);
+ //EnumDesktopWindows(GetThreadDesktop(GetCurrentThreadId()), EnumWndProc, (LPARAM)_htoolbar);
+
+ set<int> btn_idx_to_delete;
+ set<HBITMAP> hbmp_to_delete;
+
+ for(TaskBarMap::iterator it=_map.begin(); it!=_map.end(); ++it) {
+ TaskBarEntry& entry = it->second;
+
+ if (!entry._used && entry._id) {
+ // store button indexes to remove
+ btn_idx_to_delete.insert(entry._btn_idx);
+ hbmp_to_delete.insert(entry._hbmp);
+ entry._id = 0;
+ }
+ }
+
+ if (!btn_idx_to_delete.empty()) {
+ // remove buttons from right to left
+ for(set<int>::reverse_iterator it=btn_idx_to_delete.rbegin(); it!=btn_idx_to_delete.rend(); ++it) {
+ int idx = *it;
+
+ if (!SendMessage(_htoolbar, TB_DELETEBUTTON, idx, 0))
+ MessageBoxW(NULL, L"failed to delete button", NULL, MB_OK);
+
+
+ for(TaskBarMap::iterator it2=_map.begin(); it2!=_map.end(); ++it2) {
+ TaskBarEntry& entry = it2->second;
+
+ // adjust button indexes
+ if (entry._btn_idx > idx) {
+ --entry._btn_idx;
+#if 0
+ --entry._bmp_idx;
+
+ TBBUTTONINFO info;
+
+ info.cbSize = sizeof(TBBUTTONINFO);
+ info.dwMask = TBIF_IMAGE;
+ info.iImage = entry._bmp_idx;
+
+ if (!SendMessage(_htoolbar, TB_SETBUTTONINFO, entry._id, (LPARAM)&info))
+ MessageBoxW(NULL, L"failed to set button info", NULL, MB_OK);
+#endif
+ }
+ }
+
+ }
+
+ for(set<HBITMAP>::iterator it=hbmp_to_delete.begin(); it!=hbmp_to_delete.end(); ++it) {
+ HBITMAP hbmp = *it;
+#if 0
+ TBREPLACEBITMAP tbrepl = {0, (UINT_PTR)hbmp, 0, 0};
+ SendMessage(_htoolbar, TB_REPLACEBITMAP, 0, (LPARAM)&tbrepl);
+#endif
+ DeleteObject(hbmp);
+
+ for(TaskBarMap::iterator it=_map.begin(); it!=_map.end(); ++it)
+ if (it->second._hbmp == hbmp) {
+ _map.erase(it);
+ break;
+ }
+ }
+
+ ResizeButtons();
+ }
+}
+
+TaskBarMap::iterator TaskBarMap::find_id(int id)
+{
+ for(iterator it=begin(); it!=end(); ++it)
+ if (it->second._id == id)
+ return it;
+
+ return end();
+}
+
+void TaskBar::ResizeButtons()
+{
+ int btns = _map.size();
+
+ if (btns > 0) {
+ int bar_width = ClientRect(_hwnd).right;
+ int btn_width = (bar_width / btns) - 3;
+
+ if (btn_width < TASKBUTTONWIDTH_MIN)
+ btn_width = TASKBUTTONWIDTH_MIN;
+ else if (btn_width > TASKBUTTONWIDTH_MAX)
+ btn_width = TASKBUTTONWIDTH_MAX;
+
+ if (btn_width != _last_btn_width) {
+ _last_btn_width = btn_width;
+
+ SendMessage(_htoolbar, TB_SETBUTTONWIDTH, 0, MAKELONG(btn_width,btn_width));
+ SendMessage(_htoolbar, TB_AUTOSIZE, 0, 0);
+ }
+ }
+}
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