appbar.cpp File Reference

#include "precomp.h"
#include <wine/list.h>

Include dependency graph for appbar.cpp:

Go to the source code of this file.

Classes
struct	appbar_cmd
struct	appbar_response
struct	appbar_data

Macros
#define	GetPrimaryTaskbar()   FindWindowW(L"Shell_TrayWnd", NULL)

Functions
static struct appbar_data *	get_appbar (HWND hwnd)
void	appbar_notify_all (HMONITOR hMon, UINT uMsg, HWND hwndExclude, LPARAM lParam)
static void	send_poschanged (HWND hwnd)
static void	appbar_cliprect (HWND hwnd, RECT *rect)
static UINT_PTR	handle_appbarmessage (DWORD msg, _AppBarData *abd)
LRESULT	appbar_message (COPYDATASTRUCT *cds)

Variables
static struct list	appbars = LIST_INIT(appbars)

Macro Definition Documentation

GetPrimaryTaskbar

#define GetPrimaryTaskbar

(

)

FindWindowW(L"Shell_TrayWnd", NULL)

Definition at line 38 of file appbar.cpp.

Function Documentation

appbar_cliprect()

static void appbar_cliprect ( HWND  hwnd, RECT *  rect  )

static

Definition at line 103 of file appbar.cpp.

{
    struct appbar_data* data;
    LIST_FOR_EACH_ENTRY(data, &appbars, struct appbar_data, entry)
    {
        if (data->hwnd == hwnd)
        {
            /* we only care about appbars that were added before this one */
            return;
        }
        if (data->space_reserved)
        {
            /* move in the side that corresponds to the other appbar's edge */
            switch (data->edge)
            {
            case ABE_BOTTOM:
                rect->bottom = min(rect->bottom, data->rc.top);
                break;
            case ABE_LEFT:
                rect->left = max(rect->left, data->rc.right);
                break;
            case ABE_RIGHT:
                rect->right = min(rect->right, data->rc.left);
                break;
            case ABE_TOP:
                rect->top = max(rect->top, data->rc.bottom);
                break;
            }
        }
    }
}

Referenced by handle_appbarmessage().

appbar_message()

LRESULT appbar_message

(

COPYDATASTRUCT *

cds

)

Definition at line 242 of file appbar.cpp.

{
    struct appbar_cmd cmd;
    UINT_PTR result;
    HANDLE return_hproc;
    HANDLE return_map;
    LPVOID return_view;
    struct appbar_response* response;
 
    if (cds->cbData != sizeof(struct appbar_cmd))
        return TRUE;
 
    RtlCopyMemory(&cmd, cds->lpData, cds->cbData);
 
    result = handle_appbarmessage(cmd.dwMsg, &cmd.abd);
 
    return_hproc = OpenProcess(PROCESS_DUP_HANDLE, FALSE, cmd.return_process);
    if (return_hproc == NULL)
    {
        ERR("couldn't open calling process\n");
        return TRUE;
    }
 
    if (!DuplicateHandle(return_hproc, UlongToHandle(cmd.return_map), GetCurrentProcess(), &return_map, 0, FALSE, DUPLICATE_SAME_ACCESS))
    {
        ERR("couldn't duplicate handle\n");
        CloseHandle(return_hproc);
        return TRUE;
    }
    CloseHandle(return_hproc);
 
    return_view = MapViewOfFile(return_map, FILE_MAP_WRITE, 0, 0, sizeof(struct appbar_response));
 
    if (return_view)
    {
        response = (struct appbar_response*)return_view;
        response->result = result;
        response->abd = cmd.abd;
 
        UnmapViewOfFile(return_view);
    }
    else
    {
        ERR("couldn't map view of file\n");
    }
 
    CloseHandle(return_map);
    return TRUE;
}

Referenced by CTrayWindow::OnCopyData().

appbar_notify_all()

void appbar_notify_all	(	HMONITOR	hMon,
		UINT	uMsg,
		HWND	hwndExclude,
		LPARAM	lParam
	)

Definition at line 80 of file appbar.cpp.

{
    struct appbar_data* data;
 
    LIST_FOR_EACH_ENTRY(data, &appbars, struct appbar_data, entry)
    {
        if (data->hwnd == hwndExclude)
            continue;
 
        if (hMon && hMon != MonitorFromWindow(data->hwnd, MONITOR_DEFAULTTONULL))
            continue;
 
        SendMessageW(data->hwnd, data->callback_msg, uMsg, lParam);
    }
}

Referenced by CTrayWindow::ExecContextMenuCmd(), and send_poschanged().

get_appbar()

static struct appbar_data * get_appbar ( HWND  hwnd )

static

Definition at line 67 of file appbar.cpp.

{
    struct appbar_data* data;
 
    LIST_FOR_EACH_ENTRY(data, &appbars, struct appbar_data, entry)
    {
        if (data->hwnd == hwnd)
            return data;
    }
 
    return NULL;
}

Referenced by handle_appbarmessage().

handle_appbarmessage()

static UINT_PTR handle_appbarmessage ( DWORD  msg, _AppBarData *  abd  )

static

Definition at line 135 of file appbar.cpp.

{
    struct appbar_data* data;
    HWND hwnd = abd->hWnd;
 
    switch (msg)
    {
    case ABM_NEW:
        if (get_appbar(hwnd))
        {
            /* fail when adding an hwnd the second time */
            return FALSE;
        }
 
        data = (struct appbar_data*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct appbar_data));
        if (!data)
        {
            ERR("out of memory\n");
            return FALSE;
        }
        data->hwnd = hwnd;
        data->callback_msg = abd->uCallbackMessage;
 
        list_add_tail(&appbars, &data->entry);
 
        return TRUE;
    case ABM_REMOVE:
        if ((data = get_appbar(hwnd)))
        {
            list_remove(&data->entry);
 
            send_poschanged(hwnd);
 
            HeapFree(GetProcessHeap(), 0, data);
        }
        else
            WARN("removing hwnd %p not on the list\n", hwnd);
        return TRUE;
    case ABM_QUERYPOS:
        if (abd->uEdge > ABE_BOTTOM)
            WARN("invalid edge %i for %p\n", abd->uEdge, hwnd);
        appbar_cliprect( hwnd, &abd->rc );
        return TRUE;
    case ABM_SETPOS:
        if (abd->uEdge > ABE_BOTTOM)
        {
            WARN("invalid edge %i for %p\n", abd->uEdge, hwnd);
            return TRUE;
        }
        if ((data = get_appbar(hwnd)))
        {
            /* calculate acceptable space */
            appbar_cliprect( hwnd, &abd->rc );
 
            if (!EqualRect(&abd->rc, &data->rc))
                send_poschanged(hwnd);
 
            /* reserve that space for this appbar */
            data->edge = abd->uEdge;
            data->rc = abd->rc;
            data->space_reserved = TRUE;
        }
        else
        {
            WARN("app sent ABM_SETPOS message for %p without ABM_ADD\n", hwnd);
        }
        return TRUE;
    case ABM_GETSTATE:
        TRACE("SHAppBarMessage(ABM_GETSTATE)\n");
        return (g_TaskbarSettings.sr.AutoHide ? ABS_AUTOHIDE : 0) |
               (g_TaskbarSettings.sr.AlwaysOnTop ? ABS_ALWAYSONTOP : 0);
    case ABM_SETSTATE:
        TRACE("SHAppBarMessage(ABM_SETSTATE lparam=%s)\n", wine_dbgstr_longlong(abd->lParam));
        hwnd = GetPrimaryTaskbar();
        if (hwnd)
        {
            TaskbarSettings settings = g_TaskbarSettings;
            settings.sr.AutoHide = (abd->lParam & ABS_AUTOHIDE) != 0;
            settings.sr.AlwaysOnTop = (abd->lParam & ABS_ALWAYSONTOP) != 0;
            SendMessageW(hwnd, TWM_SETTINGSCHANGED, 0, (LPARAM)&settings);
            return TRUE;
        }
        return FALSE;
    case ABM_GETTASKBARPOS:
        TRACE("SHAppBarMessage(ABM_GETTASKBARPOS, hwnd=%p)\n", hwnd);
        abd->uEdge = g_TaskbarSettings.sr.Position;
        abd->hWnd = GetPrimaryTaskbar();
        return abd->hWnd && GetWindowRect(abd->hWnd, &abd->rc);
    case ABM_ACTIVATE:
        return TRUE;
    case ABM_GETAUTOHIDEBAR:
        FIXME("SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=%p, edge=%x): stub\n", hwnd, abd->uEdge);
        if (abd->uEdge == g_TaskbarSettings.sr.Position && g_TaskbarSettings.sr.AutoHide)
            return (SIZE_T)GetPrimaryTaskbar();
        return NULL;
    case ABM_SETAUTOHIDEBAR:
        FIXME("SHAppBarMessage(ABM_SETAUTOHIDEBAR, hwnd=%p, edge=%x, lparam=%s): stub\n",
                   hwnd, abd->uEdge, wine_dbgstr_longlong(abd->lParam));
        return TRUE;
    case ABM_WINDOWPOSCHANGED:
        return TRUE;
    default:
        FIXME("SHAppBarMessage(%x) unimplemented\n", msg);
        return FALSE;
    }
}

Referenced by appbar_message().

send_poschanged()

static void send_poschanged ( HWND  hwnd )

static

Definition at line 97 of file appbar.cpp.

{
    appbar_notify_all(NULL, ABN_POSCHANGED, hwnd, 0);
}

Referenced by handle_appbarmessage().

Variable Documentation

appbars

struct list appbars = LIST_INIT(appbars)

static

Definition at line 65 of file appbar.cpp.

Referenced by appbar_cliprect(), appbar_notify_all(), get_appbar(), and handle_appbarmessage().