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explorer: Implement a global system tray window.

This commit is contained in:
Alexandre Julliard 2008-04-08 15:56:24 +02:00
parent 49f467c339
commit 698805d8c5
1 changed files with 229 additions and 204 deletions
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405
programs/explorer/systray.c
View File

@ -1,6 +1,7 @@
/*
* 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
@ -17,17 +18,6 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* There are two types of window involved here. The first is the
* listener window. This is like the taskbar in Windows. It doesn't
* ever appear on-screen in our implementation, instead we create
* individual mini "adaptor" windows which are docked by the native
* systray host.
*
* In future for those who don't have a systray we could make the
* listener window more clever so it can draw itself like the Windows
* tray area does (with a clock and stuff).
*/
#include <assert.h>
#define UNICODE
@ -47,38 +37,31 @@ WINE_DEFAULT_DEBUG_CHANNEL(systray);
static BOOL (*wine_notify_icon)(DWORD,NOTIFYICONDATAW *);
static const WCHAR adaptor_classname[] = /* Adaptor */ {'A','d','a','p','t','o','r',0};
/* tray state */
struct tray
{
HWND window;
struct list icons;
};
/* 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 window; /* the adaptor window */
HWND tooltip; /* Icon tooltip */
UINT id; /* the unique id given by the app */
UINT callback_message;
BOOL hidden; /* icon display state */
int display; /* index in display list, or -1 if hidden */
WCHAR tiptext[128]; /* Tooltip text. If empty => tooltip disabled */
};
static struct tray tray;
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;
/* adaptor code */
#define ICON_SIZE GetSystemMetrics(SM_CXSMICON)
/* space around icon (forces icon to center of KDE systray area) */
#define ICON_BORDER 4
#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)
@ -86,12 +69,28 @@ static struct icon *get_icon(HWND owner, UINT id)
struct icon *this;
/* search for the icon */
LIST_FOR_EACH_ENTRY( this, &tray.icons, struct icon, entry )
LIST_FOR_EACH_ENTRY( this, &icon_list, struct icon, entry )
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)
{
@ -114,14 +113,19 @@ static void create_tooltip(struct icon *icon)
WS_POPUP | TTS_ALWAYSTIP,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
icon->window, NULL, NULL, NULL);
tray_window, NULL, NULL, NULL);
ZeroMemory(&ti, sizeof(ti));
ti.cbSize = sizeof(TTTOOLINFOW);
ti.uFlags = TTF_SUBCLASS | TTF_IDISHWND;
ti.hwnd = icon->window;
ti.uId = (UINT_PTR)icon->window;
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);
}
@ -132,75 +136,127 @@ static void update_tooltip_text(struct icon *icon)
ZeroMemory(&ti, sizeof(ti));
ti.cbSize = sizeof(TTTOOLINFOW);
ti.uFlags = TTF_SUBCLASS | TTF_IDISHWND;
ti.hwnd = icon->window;
ti.uId = (UINT_PTR)icon->window;
ti.hwnd = tray_window;
ti.lpszText = icon->tiptext;
SendMessageW(icon->tooltip, TTM_UPDATETIPTEXTW, 0, (LPARAM)&ti);
}
/*
* Sets visibility status of tray icon. Creates/deletes icon window.
* Does not create/delete icon record.
*
* The purpose is similar to ShowWindow function.
*/
static BOOL display_icon(struct icon *icon, BOOL hide)
/* 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;
static const WCHAR adaptor_windowname[] = /* Wine System Tray Adaptor */ {'W','i','n','e',' ','S','y','s','t','e','m',' ','T','r','a','y',' ','A','d','a','p','t','o','r',0};
WINE_TRACE("id=0x%x, hwnd=%p, hide=%d\n", icon->id, icon->owner, hide);
/* not a startup case and nothing to do */
if (icon->window && !icon->hidden == !hide)
return TRUE;
icon->hidden = hide;
if (hide)
{
/* At startup icon->hidden == FALSE and icon->window == NULL */
if (icon->window)
{
DestroyWindow(icon->window);
DestroyWindow(icon->tooltip);
}
return TRUE;
}
rect.left = 0;
rect.left = start * icon_cx;
rect.top = 0;
rect.right = GetSystemMetrics(SM_CXSMICON) + ICON_BORDER;
rect.bottom = GetSystemMetrics(SM_CYSMICON) + ICON_BORDER;
AdjustWindowRect(&rect, WS_CLIPSIBLINGS | WS_CAPTION, FALSE);
rect.right = (end + 1) * icon_cx;
rect.bottom = icon_cy;
InvalidateRect( tray_window, &rect, TRUE );
}
/* create the adaptor window */
icon->window = CreateWindowEx(0, adaptor_classname,
adaptor_windowname,
WS_CLIPSIBLINGS | WS_CAPTION,
CW_USEDEFAULT, CW_USEDEFAULT,
rect.right - rect.left,
rect.bottom - rect.top,
NULL, NULL, NULL, icon);
/* make an icon visible */
static BOOL show_icon(struct icon *icon)
{
WINE_TRACE("id=0x%x, hwnd=%p\n", icon->id, icon->owner);
if (!hide_systray)
ShowWindow(icon->window, SW_SHOWNA);
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(NOTIFYICONDATAW *nid)
static BOOL modify_icon( struct icon *icon, NOTIFYICONDATAW *nid )
{
struct icon *icon;
WINE_TRACE("id=0x%x, hwnd=%p\n", nid->uID, nid->hWnd);
/* demarshal the request from the NID */
icon = get_icon(nid->hWnd, nid->uID);
if (!icon)
{
WINE_WARN("Invalid icon ID (0x%x) for HWND %p\n", nid->uID, nid->hWnd);
@ -208,19 +264,16 @@ static BOOL modify_icon(NOTIFYICONDATAW *nid)
}
if ((nid->uFlags & NIF_STATE) && (nid->dwStateMask & NIS_HIDDEN))
display_icon(icon, !!(nid->dwState & NIS_HIDDEN));
/* startup case*/
if ((!icon->window) && (!icon->hidden))
display_icon(icon, FALSE);
{
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->hidden)
RedrawWindow(icon->window, NULL, NULL, RDW_ERASE | RDW_INVALIDATE | RDW_UPDATENOW);
if (icon->display != -1) invalidate_icons( icon->display, icon->display );
}
if (nid->uFlags & NIF_MESSAGE)
@ -230,8 +283,7 @@ static BOOL modify_icon(NOTIFYICONDATAW *nid)
if (nid->uFlags & NIF_TIP)
{
lstrcpynW(icon->tiptext, nid->szTip, sizeof(icon->tiptext)/sizeof(WCHAR));
if (!icon->hidden)
update_tooltip_text(icon);
if (icon->display != -1) update_tooltip_text(icon);
}
if (nid->uFlags & NIF_INFO && nid->cbSize >= NOTIFYICONDATAA_V2_SIZE)
{
@ -262,46 +314,38 @@ static BOOL add_icon(NOTIFYICONDATAW *nid)
ZeroMemory(icon, sizeof(struct icon));
icon->id = nid->uID;
icon->owner = nid->hWnd;
icon->display = -1;
list_add_tail(&tray.icons, &icon->entry);
list_add_tail(&icon_list, &icon->entry);
/*
* Both icon->window and icon->hidden are zero. modify_icon function
* will treat this case as a startup, i.e. icon window will be created if
* NIS_HIDDEN flag is not set.
*/
return modify_icon(nid);
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_directly(struct icon *icon)
static BOOL delete_icon(struct icon *icon)
{
display_icon(icon, TRUE);
hide_icon(icon);
list_remove(&icon->entry);
DestroyIcon(icon->image);
HeapFree(GetProcessHeap(), 0, icon);
return TRUE;
}
/* Deletes tray icon window and icon structure */
static BOOL delete_icon(const NOTIFYICONDATAW *nid)
/* cleanup icons belonging to windows that have been destroyed */
static void cleanup_destroyed_windows(void)
{
struct icon *icon = get_icon(nid->hWnd, nid->uID);
struct icon *icon, *next;
WINE_TRACE("id=0x%x, hwnd=%p\n", nid->uID, nid->hWnd);
if (!icon)
{
WINE_WARN("invalid tray icon ID specified: %u\n", nid->uID);
return FALSE;
}
return delete_icon_directly(icon);
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;
NOTIFYICONDATAW nid;
DWORD cbSize;
BOOL ret = FALSE;
@ -351,11 +395,15 @@ static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
buffer, buffer + cbMaskBits);
}
/* try forward to x11drv first */
if (cds->dwData == NIM_ADD || !(icon = get_icon( nid.hWnd, nid.uID )))
{
if (wine_notify_icon && wine_notify_icon( cds->dwData, &nid ))
{
if (nid.uFlags & NIF_ICON) DestroyIcon( nid.hIcon );
return TRUE;
}
}
switch (cds->dwData)
{
@ -363,10 +411,10 @@ static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
ret = add_icon(&nid);
break;
case NIM_DELETE:
ret = delete_icon(&nid);
if (icon) ret = delete_icon( icon );
break;
case NIM_MODIFY:
ret = modify_icon(&nid);
if (icon) ret = modify_icon( icon, &nid );
break;
default:
WINE_FIXME("unhandled tray message: %ld\n", cds->dwData);
@ -381,50 +429,33 @@ static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
return ret;
}
static LRESULT WINAPI listener_wndproc(HWND window, UINT msg,
WPARAM wparam, LPARAM lparam)
static LRESULT WINAPI tray_wndproc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
if (msg == WM_COPYDATA)
return handle_incoming((HWND)wparam, (COPYDATASTRUCT *)lparam);
return DefWindowProc(window, msg, wparam, lparam);
}
static LRESULT WINAPI adaptor_wndproc(HWND window, UINT msg,
WPARAM wparam, LPARAM lparam)
{
struct icon *icon = NULL;
BOOL ret;
WINE_TRACE("hwnd=%p, msg=0x%x\n", window, msg);
/* set the icon data for the window from the data passed into CreateWindow */
if (msg == WM_NCCREATE)
SetWindowLongPtrW(window, GWLP_USERDATA, (LPARAM)((const CREATESTRUCT *)lparam)->lpCreateParams);
icon = (struct icon *) GetWindowLongPtr(window, GWLP_USERDATA);
switch (msg)
{
case WM_COPYDATA:
return handle_incoming((HWND)wparam, (COPYDATASTRUCT *)lparam);
case WM_TIMER:
cleanup_destroyed_windows();
break;
case WM_PAINT:
{
RECT rc;
int top;
unsigned int i;
PAINTSTRUCT ps;
HDC hdc;
WINE_TRACE("painting\n");
hdc = BeginPaint(window, &ps);
GetClientRect(window, &rc);
/* calculate top so we can deal with arbitrary sized trays */
top = ((rc.bottom-rc.top)/2) - ((ICON_SIZE)/2);
DrawIconEx(hdc, (ICON_BORDER/2), top, icon->image,
ICON_SIZE, ICON_SIZE, 0, 0, DI_DEFAULTSIZE|DI_NORMAL);
EndPaint(window, &ps);
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;
}
@ -438,29 +469,41 @@ static LRESULT WINAPI adaptor_wndproc(HWND window, UINT msg,
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);
ret = PostMessage(icon->owner, icon->callback_message, (WPARAM) icon->id, (LPARAM) msg);
if (!ret && (GetLastError() == ERROR_INVALID_WINDOW_HANDLE))
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_directly(icon);
delete_icon( icon );
}
break;
}
case WM_NCDESTROY:
SetWindowLongPtr(window, GWLP_USERDATA, 0);
break;
case WM_CLOSE:
/* don't destroy the tray window, just hide it */
ShowWindow( hwnd, SW_HIDE );
return 0;
default:
return DefWindowProc(window, msg, wparam, lparam);
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','\\',
@ -487,24 +530,23 @@ static BOOL is_systray_hidden(void)
void initialize_systray(void)
{
HMODULE x11drv;
SIZE size;
WNDCLASSEX class;
static const WCHAR classname[] = /* Shell_TrayWnd */ {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
static const WCHAR winname[] = /* Wine Systray Listener */
{'W','i','n','e',' ','S','y','s','t','r','a','y',' ','L','i','s','t','e','n','e','r',0};
WINE_TRACE("initiaizing\n");
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();
list_init(&tray.icons);
/* register the systray listener window class */
ZeroMemory(&class, sizeof(class));
class.cbSize = sizeof(class);
class.lpfnWndProc = &listener_wndproc;
class.style = CS_DBLCLKS;
class.lpfnWndProc = tray_wndproc;
class.hInstance = NULL;
class.hIcon = LoadIcon(0, IDI_WINLOGO);
class.hCursor = LoadCursor(0, IDC_ARROW);
@ -517,30 +559,13 @@ void initialize_systray(void)
return;
}
/* now register the adaptor window class */
ZeroMemory(&class, sizeof(class));
class.cbSize = sizeof(class);
class.lpfnWndProc = adaptor_wndproc;
class.hInstance = NULL;
class.hIcon = LoadIcon(0, IDI_WINLOGO);
class.hCursor = LoadCursor(0, IDC_ARROW);
class.hbrBackground = (HBRUSH) COLOR_WINDOW;
class.lpszClassName = adaptor_classname;
class.style = CS_SAVEBITS | CS_DBLCLKS;
if (!RegisterClassEx(&class))
{
WINE_ERR("Could not register adaptor class\n");
return;
}
tray.window = CreateWindow(classname, winname, WS_OVERLAPPED,
CW_USEDEFAULT, CW_USEDEFAULT,
0, 0, 0, 0, 0, 0);
if (!tray.window)
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;
}
SetTimer( tray_window, 1, 2000, NULL );
}