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explorer: Display buttons on the task bar for running applications. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2016-05-31 14:01:33 +09:00
parent f4568fc640
commit 9da34d943e
1 changed files with 163 additions and 15 deletions
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178
programs/explorer/systray.c
View File

@ -80,6 +80,18 @@ struct icon
};
static struct list icon_list = LIST_INIT( icon_list );
struct taskbar_button
{
struct list entry;
HWND hwnd;
HWND button;
BOOL active;
BOOL visible;
};
static struct list taskbar_buttons = LIST_INIT( taskbar_buttons );
static HWND tray_window;
static unsigned int alloc_displayed;
@ -88,13 +100,12 @@ static struct icon **displayed; /* array of currently displayed icons */
static BOOL hide_systray, enable_shell;
static int icon_cx, icon_cy, tray_width, tray_height;
static int start_button_width, taskbar_button_width;
static WCHAR start_label[50];
static struct icon *balloon_icon;
static HWND balloon_window;
static HWND start_button;
#define MIN_DISPLAYED 8
#define ICON_BORDER 2
@ -461,6 +472,47 @@ static void cleanup_systray_window( HWND hwnd )
}
}
/* update the taskbar buttons when something changed */
static void sync_taskbar_buttons(void)
{
struct taskbar_button *win;
int pos = 0, count = 0;
int width = taskbar_button_width;
int right = tray_width - nb_displayed * icon_cx;
HWND foreground = GetAncestor( GetForegroundWindow(), GA_ROOTOWNER );
LIST_FOR_EACH_ENTRY( win, &taskbar_buttons, struct taskbar_button, entry )
{
if (!win->hwnd) /* start button */
{
SetWindowPos( win->button, 0, pos, 0, start_button_width, tray_height,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_SHOWWINDOW );
pos += start_button_width;
continue;
}
win->active = (win->hwnd == foreground);
win->visible = IsWindowVisible( win->hwnd ) && !GetWindow( win->hwnd, GW_OWNER );
if (win->visible) count++;
}
/* shrink buttons if space is tight */
if (count && (count * width > right - pos))
width = max( taskbar_button_width / 4, (right - pos) / count );
LIST_FOR_EACH_ENTRY( win, &taskbar_buttons, struct taskbar_button, entry )
{
if (!win->hwnd) continue; /* start button */
if (win->visible && right - pos >= width)
{
SetWindowPos( win->button, 0, pos, 0, width, tray_height,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_SHOWWINDOW );
InvalidateRect( win->button, NULL, TRUE );
pos += width;
}
else SetWindowPos( win->button, 0, 0, 0, 0, 0, SWP_NOZORDER | SWP_NOACTIVATE | SWP_HIDEWINDOW );
}
}
static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
{
struct icon *icon = NULL;
@ -535,17 +587,106 @@ static BOOL handle_incoming(HWND hwndSource, COPYDATASTRUCT *cds)
}
if (nid.hIcon) DestroyIcon( nid.hIcon );
sync_taskbar_buttons();
return ret;
}
static void add_taskbar_button( HWND hwnd )
{
struct taskbar_button *win;
/* ignore our own windows */
if (hwnd)
{
DWORD process;
if (!GetWindowThreadProcessId( hwnd, &process ) || process == GetCurrentProcessId()) return;
}
if (!(win = HeapAlloc( GetProcessHeap(), 0, sizeof(*win) ))) return;
win->hwnd = hwnd;
win->button = CreateWindowW( WC_BUTTONW, NULL, WS_CHILD | BS_OWNERDRAW,
0, 0, 0, 0, tray_window, (HMENU)hwnd, 0, 0 );
list_add_tail( &taskbar_buttons, &win->entry );
}
static struct taskbar_button *find_taskbar_button( HWND hwnd )
{
struct taskbar_button *win;
LIST_FOR_EACH_ENTRY( win, &taskbar_buttons, struct taskbar_button, entry )
if (win->hwnd == hwnd) return win;
return NULL;
}
static void remove_taskbar_button( HWND hwnd )
{
struct taskbar_button *win = find_taskbar_button( hwnd );
if (!win) return;
list_remove( &win->entry );
DestroyWindow( win->button );
HeapFree( GetProcessHeap(), 0, win );
}
static void paint_taskbar_button( const DRAWITEMSTRUCT *dis )
{
RECT rect;
UINT flags = DC_TEXT;
struct taskbar_button *win = find_taskbar_button( LongToHandle( dis->CtlID ));
if (!win) return;
GetClientRect( dis->hwndItem, &rect );
DrawFrameControl( dis->hDC, &rect, DFC_BUTTON, DFCS_BUTTONPUSH | DFCS_ADJUSTRECT |
((dis->itemState & ODS_SELECTED) ? DFCS_PUSHED : 0 ));
DrawCaptionTempW( 0, dis->hDC, &rect, 0, 0, start_label, DC_TEXT | DC_INBUTTON | DC_ICON );
if (win->hwnd)
{
flags |= win->active ? DC_ACTIVE : DC_INBUTTON;
DrawCaptionTempW( win->hwnd, dis->hDC, &rect, 0, 0, NULL, flags );
}
else /* start button */
DrawCaptionTempW( 0, dis->hDC, &rect, 0, 0, start_label, flags | DC_INBUTTON | DC_ICON );
}
static void click_taskbar_button( HWND button )
{
LONG_PTR id = GetWindowLongPtrW( button, GWLP_ID );
HWND hwnd = (HWND)id;
if (!hwnd) /* start button */
{
do_startmenu( tray_window );
return;
}
if (IsIconic( hwnd ))
{
SendMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0 );
return;
}
if (IsWindowEnabled( hwnd ))
{
if (hwnd == GetForegroundWindow())
{
SendMessageW( hwnd, WM_SYSCOMMAND, SC_MINIMIZE, 0 );
return;
}
}
else /* look for an enabled window owned by this one */
{
HWND owned = GetWindow( GetDesktopWindow(), GW_CHILD );
while (owned && owned != hwnd)
{
if (IsWindowVisible( owned ) &&
IsWindowEnabled( owned ) &&
(GetWindow( owned, GW_OWNER ) == hwnd))
break;
owned = GetWindow( owned, GW_HWNDNEXT );
}
hwnd = owned;
}
SetForegroundWindow( hwnd );
}
static void do_hide_systray(void)
@ -558,7 +699,7 @@ static void do_hide_systray(void)
static void do_show_systray(void)
{
SIZE start_button_size;
SIZE size;
NONCLIENTMETRICSW ncm;
HFONT font;
HDC hdc = GetDC( 0 );
@ -568,17 +709,19 @@ static void do_show_systray(void)
font = CreateFontIndirectW( &ncm.lfCaptionFont );
/* FIXME: Implement BCM_GETIDEALSIZE and use that instead. */
SelectObject( hdc, font );
GetTextExtentPointW( hdc, start_label, lstrlenW(start_label), &start_button_size );
GetTextExtentPointA( hdc, "abcdefghijklmnopqrstuvwxyz", 26, &size );
taskbar_button_width = size.cx;
GetTextExtentPointW( hdc, start_label, lstrlenW(start_label), &size );
/* add some margins (FIXME) */
start_button_size.cx += 12 + GetSystemMetrics( SM_CXSMICON );
start_button_size.cy += 4;
size.cx += 12 + GetSystemMetrics( SM_CXSMICON );
size.cy += 4;
ReleaseDC( 0, hdc );
DeleteObject( font );
tray_width = GetSystemMetrics( SM_CXSCREEN );
tray_height = max( icon_cy, start_button_size.cy );
SetWindowPos( start_button, 0, 0, 0, start_button_size.cx, tray_height,
SWP_NOACTIVATE | SWP_NOZORDER );
tray_height = max( icon_cy, size.cy );
start_button_width = size.cx;
sync_taskbar_buttons();
SetWindowPos( tray_window, HWND_TOPMOST, 0, GetSystemMetrics( SM_CYSCREEN ) - tray_height,
tray_width, tray_height, SWP_NOACTIVATE | SWP_SHOWWINDOW );
}
@ -666,10 +809,12 @@ static LRESULT WINAPI tray_wndproc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM l
break;
case WM_COMMAND:
if ((HWND)lparam == start_button && HIWORD(wparam) == BN_CLICKED)
do_startmenu(hwnd);
if (HIWORD(wparam) == BN_CLICKED) click_taskbar_button( (HWND)lparam );
break;
case WM_MOUSEACTIVATE:
return MA_NOACTIVATE;
case WM_INITMENUPOPUP:
case WM_MENUCOMMAND:
return menu_wndproc(hwnd, msg, wparam, lparam);
@ -685,10 +830,15 @@ void handle_parent_notify( HWND hwnd, WPARAM wp )
{
switch (LOWORD(wp))
{
case WM_CREATE:
add_taskbar_button( hwnd );
break;
case WM_DESTROY:
remove_taskbar_button( hwnd );
cleanup_systray_window( hwnd );
break;
}
sync_taskbar_buttons();
}
/* this function creates the listener window */
@ -696,7 +846,6 @@ void initialize_systray( HMODULE graphics_driver, BOOL using_root, BOOL arg_enab
{
WNDCLASSEXW class;
static const WCHAR classname[] = {'S','h','e','l','l','_','T','r','a','y','W','n','d',0};
static const WCHAR button_class[] = {'B','u','t','t','o','n',0};
wine_notify_icon = (void *)GetProcAddress( graphics_driver, "wine_notify_icon" );
@ -732,8 +881,7 @@ void initialize_systray( HMODULE graphics_driver, BOOL using_root, BOOL arg_enab
LoadStringW( NULL, IDS_START_LABEL, start_label, sizeof(start_label)/sizeof(WCHAR) );
start_button = CreateWindowW( button_class, NULL, WS_CHILD | WS_VISIBLE | BS_OWNERDRAW,
0, 0, 0, 0, tray_window, 0, 0, 0 );
add_taskbar_button( 0 );
if (hide_systray) do_hide_systray();
else if (enable_shell) do_show_systray();