Sweden-Number/programs/explorer/systray.c

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/*
* Copyright (C) 2004 Mike Hearn, for CodeWeavers
* Copyright (C) 2005 Robert Shearman
* Copyright (C) 2008 Alexandre Julliard
*
* 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 St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#define UNICODE
#define _WIN32_IE 0x500
#include <windows.h>
#include <commctrl.h>
#include <wine/debug.h>
#include <wine/list.h>
#include "explorer_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(systray);
#define IS_OPTION_FALSE(ch) \
((ch) == 'n' || (ch) == 'N' || (ch) == 'f' || (ch) == 'F' || (ch) == '0')
static int (CDECL *wine_notify_icon)(DWORD,NOTIFYICONDATAW *);
/* an individual systray icon, unpacked from the NOTIFYICONDATA and always in unicode */
struct icon
{
struct list entry;
HICON image; /* the image to render */
HWND owner; /* the HWND passed in to the Shell_NotifyIcon call */
HWND tooltip; /* Icon tooltip */
UINT id; /* the unique id given by the app */
UINT callback_message;
int display; /* index in display list, or -1 if hidden */
WCHAR tiptext[128]; /* Tooltip text. If empty => tooltip disabled */
};
static struct list icon_list = LIST_INIT( icon_list );
static HWND tray_window;
static unsigned int alloc_displayed;
static unsigned int nb_displayed;
static struct icon **displayed; /* array of currently displayed icons */
static BOOL hide_systray;
static int icon_cx, icon_cy;
#define MIN_DISPLAYED 8
#define ICON_BORDER 2
/* Retrieves icon record by owner window and ID */
static struct icon *get_icon(HWND owner, UINT id)
{
struct icon *this;
/* search for the icon */
LIST_FOR_EACH_ENTRY( this, &icon_list, struct icon, entry )
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if ((this->id == id) && (this->owner == owner)) return this;
return NULL;
}
/* compute the size of the tray window */
static SIZE get_window_size(void)
{
SIZE size;
RECT rect;
rect.left = 0;
rect.top = 0;
rect.right = icon_cx * max( nb_displayed, MIN_DISPLAYED );
rect.bottom = icon_cy;
AdjustWindowRect( &rect, WS_CAPTION, FALSE );
size.cx = rect.right - rect.left;
size.cy = rect.bottom - rect.top;
return size;
}
/* Creates tooltip window for icon. */
static void create_tooltip(struct icon *icon)
{
TTTOOLINFOW ti;
static BOOL tooltips_initialized = FALSE;
/* Register tooltip classes if this is the first icon */
if (!tooltips_initialized)
{
INITCOMMONCONTROLSEX init_tooltip;
init_tooltip.dwSize = sizeof(INITCOMMONCONTROLSEX);
init_tooltip.dwICC = ICC_TAB_CLASSES;
InitCommonControlsEx(&init_tooltip);
tooltips_initialized = TRUE;
}
icon->tooltip = CreateWindowExW(WS_EX_TOPMOST, TOOLTIPS_CLASSW, NULL,
WS_POPUP | TTS_ALWAYSTIP,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
tray_window, NULL, NULL, NULL);
ZeroMemory(&ti, sizeof(ti));
ti.cbSize = sizeof(TTTOOLINFOW);
ti.hwnd = tray_window;
ti.lpszText = icon->tiptext;
if (icon->display != -1)
{
ti.rect.left = icon_cx * icon->display;
ti.rect.right = icon_cx * (icon->display + 1);
ti.rect.top = 0;
ti.rect.bottom = icon_cy;
}
SendMessageW(icon->tooltip, TTM_ADDTOOLW, 0, (LPARAM)&ti);
}
/* Synchronize tooltip text with tooltip window */
static void update_tooltip_text(struct icon *icon)
{
TTTOOLINFOW ti;
ZeroMemory(&ti, sizeof(ti));
ti.cbSize = sizeof(TTTOOLINFOW);
ti.hwnd = tray_window;
ti.lpszText = icon->tiptext;
SendMessageW(icon->tooltip, TTM_UPDATETIPTEXTW, 0, (LPARAM)&ti);
}
/* synchronize tooltip position with tooltip window */
static void update_tooltip_position( struct icon *icon )
{
TTTOOLINFOW ti;
ZeroMemory(&ti, sizeof(ti));
ti.cbSize = sizeof(TTTOOLINFOW);
ti.hwnd = tray_window;
if (icon->display != -1)
{
ti.rect.left = icon_cx * icon->display;
ti.rect.right = icon_cx * (icon->display + 1);
ti.rect.top = 0;
ti.rect.bottom = icon_cy;
}
SendMessageW( icon->tooltip, TTM_NEWTOOLRECTW, 0, (LPARAM)&ti );
}
/* find the icon located at a certain point in the tray window */
static struct icon *icon_from_point( int x, int y )
{
if (y < 0 || y >= icon_cy) return NULL;
if (x < 0 || x >= icon_cx * nb_displayed) return NULL;
return displayed[x / icon_cx];
}
/* invalidate the portion of the tray window that contains the specified icons */
static void invalidate_icons( unsigned int start, unsigned int end )
{
RECT rect;
rect.left = start * icon_cx;
rect.top = 0;
rect.right = (end + 1) * icon_cx;
rect.bottom = icon_cy;
InvalidateRect( tray_window, &rect, TRUE );
}
/* make an icon visible */
static BOOL show_icon(struct icon *icon)
{
WINE_TRACE("id=0x%x, hwnd=%p\n", icon->id, icon->owner);
if (icon->display != -1) return TRUE; /* already displayed */
if (nb_displayed >= alloc_displayed)
{
unsigned int new_count = max( alloc_displayed * 2, 32 );
struct icon **ptr;
if (displayed) ptr = HeapReAlloc( GetProcessHeap(), 0, displayed, new_count * sizeof(*ptr) );
else ptr = HeapAlloc( GetProcessHeap(), 0, new_count * sizeof(*ptr) );
if (!ptr) return FALSE;
displayed = ptr;
alloc_displayed = new_count;
}
icon->display = nb_displayed;
displayed[nb_displayed++] = icon;
update_tooltip_position( icon );
invalidate_icons( nb_displayed-1, nb_displayed-1 );
if (nb_displayed > MIN_DISPLAYED)
{
SIZE size = get_window_size();
SetWindowPos( tray_window, 0, 0, 0, size.cx, size.cy, SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE );
}
else if (nb_displayed == 1)
{
if (!hide_systray) ShowWindow( tray_window, SW_SHOWNA );
}
create_tooltip(icon);
return TRUE;
}
/* make an icon invisible */
static BOOL hide_icon(struct icon *icon)
{
unsigned int i;
WINE_TRACE("id=0x%x, hwnd=%p\n", icon->id, icon->owner);
if (icon->display == -1) return TRUE; /* already hidden */
assert( nb_displayed );
for (i = icon->display; i < nb_displayed - 1; i++)
{
displayed[i] = displayed[i + 1];
displayed[i]->display = i;
update_tooltip_position( displayed[i] );
}
nb_displayed--;
invalidate_icons( icon->display, nb_displayed );
icon->display = -1;
if (nb_displayed >= MIN_DISPLAYED)
{
SIZE size = get_window_size();
SetWindowPos( tray_window, 0, 0, 0, size.cx, size.cy, SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOMOVE );
}
else if (!nb_displayed)
{
ShowWindow( tray_window, SW_HIDE );
}
update_tooltip_position( icon );
return TRUE;
}
/* Modifies an existing icon record */
static BOOL modify_icon( struct icon *icon, NOTIFYICONDATAW *nid )
{
WINE_TRACE("id=0x%x, hwnd=%p\n", nid->uID, nid->hWnd);
/* demarshal the request from the NID */
if (!icon)
{
WINE_WARN("Invalid icon ID (0x%x) for HWND %p\n", nid->uID, nid->hWnd);
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return FALSE;
}
if ((nid->uFlags & NIF_STATE) && (nid->dwStateMask & NIS_HIDDEN))
{
if (nid->dwState & NIS_HIDDEN) hide_icon( icon );
else show_icon( icon );
}
if (nid->uFlags & NIF_ICON)
{
if (icon->image) DestroyIcon(icon->image);
icon->image = CopyIcon(nid->hIcon);
if (icon->display != -1) invalidate_icons( icon->display, icon->display );
}
if (nid->uFlags & NIF_MESSAGE)
{
icon->callback_message = nid->uCallbackMessage;
}
if (nid->uFlags & NIF_TIP)
{
lstrcpynW(icon->tiptext, nid->szTip, sizeof(icon->tiptext)/sizeof(WCHAR));
if (icon->display != -1) update_tooltip_text(icon);
}
if (nid->uFlags & NIF_INFO && nid->cbSize >= NOTIFYICONDATAA_V2_SIZE)
{
WINE_FIXME("balloon tip title %s, message %s\n", wine_dbgstr_w(nid->szInfoTitle), wine_dbgstr_w(nid->szInfo));
}
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return TRUE;
}
/* Adds a new icon record to the list */
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static BOOL add_icon(NOTIFYICONDATAW *nid)
{
struct icon *icon;
WINE_TRACE("id=0x%x, hwnd=%p\n", nid->uID, nid->hWnd);
if ((icon = get_icon(nid->hWnd, nid->uID)))
{
WINE_WARN("duplicate tray icon add, buggy app?\n");
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return FALSE;
}
if (!(icon = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*icon))))
{
WINE_ERR("out of memory\n");
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return FALSE;
}
ZeroMemory(icon, sizeof(struct icon));
icon->id = nid->uID;
icon->owner = nid->hWnd;
icon->display = -1;
list_add_tail(&icon_list, &icon->entry);
modify_icon( icon, nid );
/* show icon, unless hidden state was explicitly specified */
if (!((nid->uFlags & NIF_STATE) && (nid->dwStateMask & NIS_HIDDEN))) show_icon( icon );
return TRUE;
}
/* Deletes tray icon window and icon record */
static BOOL delete_icon(struct icon *icon)
{
hide_icon(icon);
list_remove(&icon->entry);
DestroyIcon(icon->image);
HeapFree(GetProcessHeap(), 0, icon);
return TRUE;
}
/* cleanup icons belonging to windows that have been destroyed */
static void cleanup_destroyed_windows(void)
{
struct icon *icon, *next;
LIST_FOR_EACH_ENTRY_SAFE( icon, next, &icon_list, struct icon, entry )
if (!IsWindow( icon->owner )) delete_icon( icon );
}
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static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
{
struct icon *icon = NULL;
NOTIFYICONDATAW nid;
DWORD cbSize;
int ret = FALSE;
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if (cds->cbData < NOTIFYICONDATAW_V1_SIZE) return FALSE;
cbSize = ((PNOTIFYICONDATAW)cds->lpData)->cbSize;
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if (cbSize < NOTIFYICONDATAW_V1_SIZE) return FALSE;
ZeroMemory(&nid, sizeof(nid));
memcpy(&nid, cds->lpData, min(sizeof(nid), cbSize));
/* FIXME: if statement only needed because we don't support interprocess
* icon handles */
if ((nid.uFlags & NIF_ICON) && (cds->cbData >= nid.cbSize + 2 * sizeof(BITMAP)))
{
LONG cbMaskBits;
LONG cbColourBits;
BITMAP bmMask;
BITMAP bmColour;
const char *buffer = cds->lpData;
buffer += nid.cbSize;
memcpy(&bmMask, buffer, sizeof(bmMask));
buffer += sizeof(bmMask);
memcpy(&bmColour, buffer, sizeof(bmColour));
buffer += sizeof(bmColour);
cbMaskBits = (bmMask.bmPlanes * bmMask.bmWidth * bmMask.bmHeight * bmMask.bmBitsPixel) / 8;
cbColourBits = (bmColour.bmPlanes * bmColour.bmWidth * bmColour.bmHeight * bmColour.bmBitsPixel) / 8;
if (cds->cbData < nid.cbSize + 2 * sizeof(BITMAP) + cbMaskBits + cbColourBits)
{
WINE_ERR("buffer underflow\n");
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return FALSE;
}
/* sanity check */
if ((bmColour.bmWidth != bmMask.bmWidth) || (bmColour.bmHeight != bmMask.bmHeight))
{
WINE_ERR("colour and mask bitmaps aren't consistent\n");
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return FALSE;
}
nid.hIcon = CreateIcon(NULL, bmColour.bmWidth, bmColour.bmHeight,
bmColour.bmPlanes, bmColour.bmBitsPixel,
buffer, buffer + cbMaskBits);
}
/* try forward to x11drv first */
if (cds->dwData == NIM_ADD || !(icon = get_icon( nid.hWnd, nid.uID )))
{
if (wine_notify_icon && ((ret = wine_notify_icon( cds->dwData, &nid )) != -1))
{
if (nid.uFlags & NIF_ICON) DestroyIcon( nid.hIcon );
return ret;
}
ret = FALSE;
}
switch (cds->dwData)
{
case NIM_ADD:
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ret = add_icon(&nid);
break;
case NIM_DELETE:
if (icon) ret = delete_icon( icon );
break;
case NIM_MODIFY:
if (icon) ret = modify_icon( icon, &nid );
break;
default:
WINE_FIXME("unhandled tray message: %ld\n", cds->dwData);
break;
}
/* FIXME: if statement only needed because we don't support interprocess
* icon handles */
if (nid.uFlags & NIF_ICON)
DestroyIcon(nid.hIcon);
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return ret;
}
static void do_hide_systray(void)
{
SetWindowPos( tray_window, 0,
GetSystemMetrics(SM_XVIRTUALSCREEN) + GetSystemMetrics(SM_CXVIRTUALSCREEN),
GetSystemMetrics(SM_YVIRTUALSCREEN) + GetSystemMetrics(SM_CYVIRTUALSCREEN),
0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
}
static LRESULT WINAPI tray_wndproc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
switch (msg)
{
case WM_COPYDATA:
return handle_incoming((HWND)wparam, (COPYDATASTRUCT *)lparam);
case WM_DISPLAYCHANGE:
if (hide_systray) do_hide_systray();
break;
case WM_TIMER:
cleanup_destroyed_windows();
break;
case WM_PAINT:
{
unsigned int i;
PAINTSTRUCT ps;
HDC hdc;
hdc = BeginPaint( hwnd, &ps );
for (i = ps.rcPaint.left / icon_cx;
(i < (ps.rcPaint.right + icon_cx - 1) / icon_cx) && (i < nb_displayed);
i++)
{
DrawIconEx( hdc, i * icon_cx + ICON_BORDER, ICON_BORDER, displayed[i]->image,
icon_cx - 2*ICON_BORDER, icon_cy - 2*ICON_BORDER,
0, 0, DI_DEFAULTSIZE|DI_NORMAL);
}
EndPaint( hwnd, &ps );
break;
}
case WM_MOUSEMOVE:
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_LBUTTONDBLCLK:
case WM_RBUTTONDBLCLK:
case WM_MBUTTONDBLCLK:
{
MSG message;
struct icon *icon = icon_from_point( (short)LOWORD(lparam), (short)HIWORD(lparam) );
if (!icon) break;
/* notify the owner hwnd of the message */
WINE_TRACE("relaying 0x%x\n", msg);
message.hwnd = hwnd;
message.message = msg;
message.wParam = wparam;
message.lParam = lparam;
SendMessageW( icon->tooltip, TTM_RELAYEVENT, 0, (LPARAM)&message );
if (!PostMessageW( icon->owner, icon->callback_message, (WPARAM) icon->id, (LPARAM) msg ) &&
GetLastError() == ERROR_INVALID_WINDOW_HANDLE)
{
WINE_WARN("application window was destroyed without removing "
"notification icon, removing automatically\n");
delete_icon( icon );
}
break;
}
case WM_CLOSE:
/* don't destroy the tray window, just hide it */
ShowWindow( hwnd, SW_HIDE );
return 0;
default:
return DefWindowProcW( hwnd, msg, wparam, lparam );
}
return 0;
}
static BOOL is_systray_hidden(void)
{
const WCHAR show_systray_keyname[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
'X','1','1',' ','D','r','i','v','e','r',0};
const WCHAR show_systray_valuename[] = {'S','h','o','w','S','y','s','t','r','a','y',0};
HKEY hkey;
BOOL ret = FALSE;
/* @@ Wine registry key: HKCU\Software\Wine\X11 Driver */
if (RegOpenKeyW(HKEY_CURRENT_USER, show_systray_keyname, &hkey) == ERROR_SUCCESS)
{
WCHAR value[10];
DWORD type, size = sizeof(value);
if (RegQueryValueExW(hkey, show_systray_valuename, 0, &type, (LPBYTE)&value, &size) == ERROR_SUCCESS)
{
ret = IS_OPTION_FALSE(value[0]);
}
RegCloseKey(hkey);
}
return ret;
}
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/* this function creates the listener window */
void initialize_systray(void)
{
HMODULE x11drv;
SIZE size;
WNDCLASSEXW class;
static const WCHAR classname[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
static const WCHAR winname[] = {'W','i','n','e',' ','S','y','s','t','e','m',' ','T','r','a','y',0};
if ((x11drv = GetModuleHandleA( "winex11.drv" )))
wine_notify_icon = (void *)GetProcAddress( x11drv, "wine_notify_icon" );
icon_cx = GetSystemMetrics( SM_CXSMICON ) + 2*ICON_BORDER;
icon_cy = GetSystemMetrics( SM_CYSMICON ) + 2*ICON_BORDER;
hide_systray = is_systray_hidden();
/* register the systray listener window class */
ZeroMemory(&class, sizeof(class));
class.cbSize = sizeof(class);
class.style = CS_DBLCLKS;
class.lpfnWndProc = tray_wndproc;
class.hInstance = NULL;
class.hIcon = LoadIconW(0, (LPCWSTR)IDI_WINLOGO);
class.hCursor = LoadCursorW(0, (LPCWSTR)IDC_ARROW);
class.hbrBackground = (HBRUSH) COLOR_WINDOW;
class.lpszClassName = (WCHAR *) &classname;
if (!RegisterClassExW(&class))
{
WINE_ERR("Could not register SysTray window class\n");
return;
}
size = get_window_size();
tray_window = CreateWindowW( classname, winname, WS_OVERLAPPED | WS_CAPTION,
CW_USEDEFAULT, CW_USEDEFAULT, size.cx, size.cy, 0, 0, 0, 0 );
if (!tray_window)
{
WINE_ERR("Could not create tray window\n");
return;
}
if (hide_systray) do_hide_systray();
SetTimer( tray_window, 1, 2000, NULL );
}