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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 NONAMELESSUNION
#define _WIN32_IE 0x500
#include <windows.h>
#include <commctrl.h>
#include <shellapi.h>
#include <wine/debug.h>
#include <wine/list.h>
#include "explorer_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(systray);
struct notify_data /* platform-independent format for NOTIFYICONDATA */
{
LONG hWnd;
UINT uID;
UINT uFlags;
UINT uCallbackMessage;
WCHAR szTip[128];
DWORD dwState;
DWORD dwStateMask;
WCHAR szInfo[256];
union {
UINT uTimeout;
UINT uVersion;
} u;
WCHAR szInfoTitle[64];
DWORD dwInfoFlags;
GUID guidItem;
/* data for the icon bitmap */
UINT width;
UINT height;
UINT planes;
UINT bpp;
};
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 state; /* state flags */
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 */
WCHAR info_text[256]; /* info balloon text */
WCHAR info_title[64]; /* info balloon title */
UINT info_flags; /* flags for info balloon */
UINT info_timeout; /* timeout for info balloon */
HICON info_icon; /* info balloon icon */
};
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, tray_width;
static struct icon *balloon_icon;
static HWND balloon_window;
#define MIN_DISPLAYED 8
#define ICON_BORDER 2
#define VALID_WIN_TIMER 1
#define BALLOON_CREATE_TIMER 2
#define BALLOON_SHOW_TIMER 3
#define VALID_WIN_TIMEOUT 2000
#define BALLOON_CREATE_TIMEOUT 2000
#define BALLOON_SHOW_MIN_TIMEOUT 10000
#define BALLOON_SHOW_MAX_TIMEOUT 30000
/* 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 )
if ((this->id == id) && (this->owner == owner)) return this;
return NULL;
}
static RECT get_icon_rect( struct icon *icon )
{
RECT rect;
rect.right = tray_width - icon_cx * icon->display;
rect.left = rect.right - icon_cx;
rect.top = 0;
rect.bottom = icon_cy;
return rect;
}
static void init_common_controls(void)
{
static BOOL initialized = FALSE;
if (!initialized)
{
INITCOMMONCONTROLSEX init_tooltip;
init_tooltip.dwSize = sizeof(INITCOMMONCONTROLSEX);
init_tooltip.dwICC = ICC_TAB_CLASSES;
InitCommonControlsEx(&init_tooltip);
initialized = TRUE;
}
}
/* Creates tooltip window for icon. */
static void create_tooltip(struct icon *icon)
{
TTTOOLINFOW ti;
init_common_controls();
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 = get_icon_rect( icon );
SendMessageW(icon->tooltip, TTM_ADDTOOLW, 0, (LPARAM)&ti);
}
static void set_balloon_position( struct icon *icon )
{
RECT rect = get_icon_rect( icon );
POINT pos;
MapWindowPoints( tray_window, 0, (POINT *)&rect, 2 );
pos.x = (rect.left + rect.right) / 2;
pos.y = (rect.top + rect.bottom) / 2;
SendMessageW( balloon_window, TTM_TRACKPOSITION, 0, MAKELONG( pos.x, pos.y ));
}
static void balloon_create_timer(void)
{
TTTOOLINFOW ti;
init_common_controls();
balloon_window = CreateWindowExW( WS_EX_TOPMOST, TOOLTIPS_CLASSW, NULL,
WS_POPUP | TTS_ALWAYSTIP | TTS_NOPREFIX | TTS_BALLOON | TTS_CLOSE,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
tray_window, NULL, NULL, NULL);
memset( &ti, 0, sizeof(ti) );
ti.cbSize = sizeof(TTTOOLINFOW);
ti.hwnd = tray_window;
ti.uFlags = TTF_TRACK;
ti.lpszText = balloon_icon->info_text;
SendMessageW( balloon_window, TTM_ADDTOOLW, 0, (LPARAM)&ti );
if ((balloon_icon->info_flags & NIIF_ICONMASK) == NIIF_USER)
SendMessageW( balloon_window, TTM_SETTITLEW, (WPARAM)balloon_icon->info_icon,
(LPARAM)balloon_icon->info_title );
else
SendMessageW( balloon_window, TTM_SETTITLEW, balloon_icon->info_flags,
(LPARAM)balloon_icon->info_title );
set_balloon_position( balloon_icon );
SendMessageW( balloon_window, TTM_TRACKACTIVATE, TRUE, (LPARAM)&ti );
KillTimer( tray_window, BALLOON_CREATE_TIMER );
SetTimer( tray_window, BALLOON_SHOW_TIMER, balloon_icon->info_timeout, NULL );
}
static BOOL show_balloon( struct icon *icon )
{
if (icon->display == -1) return FALSE; /* not displayed */
if (!icon->info_text[0]) return FALSE; /* no balloon */
balloon_icon = icon;
SetTimer( tray_window, BALLOON_CREATE_TIMER, BALLOON_CREATE_TIMEOUT, NULL );
return TRUE;
}
static void hide_balloon(void)
{
if (!balloon_icon) return;
if (balloon_window)
{
KillTimer( tray_window, BALLOON_SHOW_TIMER );
DestroyWindow( balloon_window );
balloon_window = 0;
}
else KillTimer( tray_window, BALLOON_CREATE_TIMER );
balloon_icon = NULL;
}
static void show_next_balloon(void)
{
struct icon *icon;
LIST_FOR_EACH_ENTRY( icon, &icon_list, struct icon, entry )
if (show_balloon( icon )) break;
}
static void update_balloon( struct icon *icon )
{
if (balloon_icon == icon)
{
hide_balloon();
show_balloon( icon );
}
else if (!balloon_icon)
{
if (!show_balloon( icon )) return;
}
if (!balloon_icon) show_next_balloon();
}
static void balloon_timer(void)
{
if (balloon_icon) balloon_icon->info_text[0] = 0; /* clear text now that balloon has been shown */
hide_balloon();
show_next_balloon();
}
/* 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 = get_icon_rect( icon );
SendMessageW( icon->tooltip, TTM_NEWTOOLRECTW, 0, (LPARAM)&ti );
if (balloon_icon == icon) set_balloon_position( icon );
}
/* 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;
x = tray_width - x;
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 = tray_width - (end + 1) * icon_cx;
rect.top = 0;
rect.right = tray_width - start * 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 == 1 && !hide_systray) ShowWindow( tray_window, SW_SHOWNA );
create_tooltip(icon);
update_balloon( 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) ShowWindow( tray_window, SW_HIDE );
update_balloon( icon );
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);
return FALSE;
}
if (nid->uFlags & NIF_STATE)
{
icon->state = (icon->state & ~nid->dwStateMask) | (nid->dwState & nid->dwStateMask);
}
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)
{
lstrcpynW( icon->info_text, nid->szInfo, sizeof(icon->info_text)/sizeof(WCHAR) );
lstrcpynW( icon->info_title, nid->szInfoTitle, sizeof(icon->info_title)/sizeof(WCHAR) );
icon->info_flags = nid->dwInfoFlags;
icon->info_timeout = max(min(nid->u.uTimeout, BALLOON_SHOW_MAX_TIMEOUT), BALLOON_SHOW_MIN_TIMEOUT);
icon->info_icon = nid->hBalloonIcon;
update_balloon( icon );
}
if (icon->state & NIS_HIDDEN) hide_icon( icon );
else show_icon( icon );
return TRUE;
}
/* Adds a new icon record to the list */
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");
return FALSE;
}
if (!(icon = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*icon))))
{
WINE_ERR("out of memory\n");
return FALSE;
}
ZeroMemory(icon, sizeof(struct icon));
icon->id = nid->uID;
icon->owner = nid->hWnd;
icon->display = -1;
if (list_empty( &icon_list )) SetTimer( tray_window, VALID_WIN_TIMER, VALID_WIN_TIMEOUT, NULL );
list_add_tail(&icon_list, &icon->entry);
return modify_icon( icon, nid );
}
/* 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);
if (list_empty( &icon_list )) KillTimer( tray_window, VALID_WIN_TIMER );
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 );
}
static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
{
struct icon *icon = NULL;
const struct notify_data *data;
NOTIFYICONDATAW nid;
int ret = FALSE;
if (cds->cbData < sizeof(*data)) return FALSE;
data = cds->lpData;
nid.cbSize = sizeof(nid);
nid.hWnd = LongToHandle( data->hWnd );
nid.uID = data->uID;
nid.uFlags = data->uFlags;
nid.uCallbackMessage = data->uCallbackMessage;
nid.hIcon = 0;
nid.dwState = data->dwState;
nid.dwStateMask = data->dwStateMask;
nid.u.uTimeout = data->u.uTimeout;
nid.dwInfoFlags = data->dwInfoFlags;
nid.guidItem = data->guidItem;
lstrcpyW( nid.szTip, data->szTip );
lstrcpyW( nid.szInfo, data->szInfo );
lstrcpyW( nid.szInfoTitle, data->szInfoTitle );
nid.hBalloonIcon = 0;
/* FIXME: if statement only needed because we don't support interprocess
* icon handles */
if ((nid.uFlags & NIF_ICON) && cds->cbData > sizeof(*data))
{
LONG cbMaskBits;
LONG cbColourBits;
const char *buffer = (const char *)(data + 1);
cbMaskBits = (data->width * data->height + 15) / 16 * 2;
cbColourBits = (data->planes * data->width * data->height * data->bpp + 15) / 16 * 2;
if (cds->cbData < sizeof(*data) + cbMaskBits + cbColourBits)
{
WINE_ERR("buffer underflow\n");
return FALSE;
}
nid.hIcon = CreateIcon(NULL, data->width, data->height, data->planes, data->bpp,
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.hIcon) DestroyIcon( nid.hIcon );
return ret;
}
ret = FALSE;
}
switch (cds->dwData)
{
case NIM_ADD:
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;
}
if (nid.hIcon) DestroyIcon( nid.hIcon );
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();
else
{
tray_width = GetSystemMetrics( SM_CXSCREEN );
SetWindowPos( tray_window, 0, 0, GetSystemMetrics( SM_CYSCREEN ) - icon_cy,
tray_width, icon_cy, SWP_NOZORDER | SWP_NOACTIVATE );
}
break;
case WM_TIMER:
switch (wparam)
{
case VALID_WIN_TIMER: cleanup_destroyed_windows(); break;
case BALLOON_CREATE_TIMER: balloon_create_timer(); break;
case BALLOON_SHOW_TIMER: balloon_timer(); break;
}
break;
case WM_PAINT:
{
unsigned int i;
PAINTSTRUCT ps;
HDC hdc;
hdc = BeginPaint( hwnd, &ps );
for (i = 0; i < nb_displayed; i++)
{
RECT dummy, rect = get_icon_rect( displayed[i] );
if (IntersectRect( &dummy, &rect, &ps.rcPaint ))
DrawIconEx( hdc, rect.left + ICON_BORDER, rect.top + 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;
}
/* this function creates the listener window */
void initialize_systray( BOOL using_root )
{
HMODULE x11drv;
WNDCLASSEXW class;
static const WCHAR classname[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',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 = using_root;
/* register the systray listener window class */
ZeroMemory(&class, sizeof(class));
class.cbSize = sizeof(class);
class.style = CS_DBLCLKS | CS_HREDRAW;
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;
}
tray_width = GetSystemMetrics( SM_CXSCREEN );
tray_window = CreateWindowExW( WS_EX_NOACTIVATE, classname, NULL, WS_POPUP,
0, GetSystemMetrics( SM_CYSCREEN ) - icon_cy,
tray_width, icon_cy, 0, 0, 0, 0 );
if (!tray_window)
{
WINE_ERR("Could not create tray window\n");
return;
}
if (hide_systray) do_hide_systray();
}
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