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#include "./browserWindow.h"
#include "./browserEvent.h"
#include "./common.h"
#include "../../ombrowser/browserHost.h"
#define NBWF_USERFLAGSMASK 0x00FFFFFF
#define NBWF_UNICODE 0x01000000
typedef struct __BROWSERWND
{
WNDPROC originalProc;
UINT flags;
BrowserEvent *eventHandler;
} BROWSERWND;
#define BROWSERWND_PROP L"NullsoftLoginboxBrowserWindow"
#define GetBrowserWnd(__hwnd) ((BROWSERWND*)GetProp((__hwnd), BROWSERWND_PROP))
static UINT NBWM_QUEUEAPC = 0;
static LRESULT CALLBACK BrowserWindow_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
BOOL BrowserWindow_Attach(HWND hBrowser, BrowserEvent *eventHandler)
{
if (!IsWindow(hBrowser))
return FALSE;
if (0 == NBWM_QUEUEAPC)
NBWM_QUEUEAPC = RegisterWindowMessage(L"NullsoftBrowserExtMessage");
BROWSERWND *browserWnd = (BROWSERWND*)GetProp(hBrowser, BROWSERWND_PROP);
if (NULL != browserWnd) return TRUE;
browserWnd = (BROWSERWND*)calloc(1, sizeof(BROWSERWND));
if (NULL == browserWnd) return FALSE;
ZeroMemory(browserWnd, sizeof(BROWSERWND));
if (IsWindowUnicode(hBrowser))
browserWnd->flags |= NBWF_UNICODE;
browserWnd->originalProc = (WNDPROC)(LONG_PTR)((0 != (NBWF_UNICODE & browserWnd->flags)) ?
SetWindowLongPtrW(hBrowser, GWLP_WNDPROC, (LONGX86)(LONG_PTR)BrowserWindow_WindowProc) :
SetWindowLongPtrA(hBrowser, GWLP_WNDPROC, (LONGX86)(LONG_PTR)BrowserWindow_WindowProc));
if (NULL == browserWnd->originalProc || !SetProp(hBrowser, BROWSERWND_PROP, browserWnd))
{
if (NULL != browserWnd->originalProc)
{
if (0 != (NBWF_UNICODE & browserWnd->flags))
SetWindowLongPtrW(hBrowser, GWLP_WNDPROC, (LONGX86)(LONG_PTR)browserWnd->originalProc);
else
SetWindowLongPtrA(hBrowser, GWLP_WNDPROC, (LONGX86)(LONG_PTR)browserWnd->originalProc);
}
free(browserWnd);
return FALSE;
}
if (NULL != eventHandler)
{
browserWnd->eventHandler = eventHandler;
eventHandler->AddRef();
}
return TRUE;
}
BOOL BrowserWindow_Detach(HWND hBrowser)
{
if (NULL == hBrowser || FALSE == IsWindow(hBrowser))
return FALSE;
BROWSERWND *browserWnd = GetBrowserWnd(hBrowser);
RemoveProp(hBrowser, BROWSERWND_PROP);
if (NULL == browserWnd)
return FALSE;
if (NULL != browserWnd->originalProc)
{
if (0 != (NBWF_UNICODE & browserWnd->flags))
SetWindowLongPtrW(hBrowser, GWLP_WNDPROC, (LONGX86)(LONG_PTR)browserWnd->originalProc);
else
SetWindowLongPtrA(hBrowser, GWLP_WNDPROC, (LONGX86)(LONG_PTR)browserWnd->originalProc);
}
if (NULL != browserWnd->eventHandler)
browserWnd->eventHandler->Release();
free(browserWnd);
return TRUE;
}
BOOL BrowserWindow_QueueApc(HWND hBrowser, LPARAM param)
{
if (0 == NBWM_QUEUEAPC ||
NULL == hBrowser || FALSE == IsWindow(hBrowser))
{
return FALSE;
}
return PostMessage(hBrowser, NBWM_QUEUEAPC, 0, (LPARAM)param);
}
static LRESULT BrowserWindow_CallOrigWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
BROWSERWND *browserWnd = GetBrowserWnd(hwnd);
if (NULL == browserWnd || NULL == browserWnd->originalProc)
{
return (0 != (NBWF_UNICODE & browserWnd->flags)) ?
DefWindowProcW(hwnd, uMsg, wParam, lParam) :
DefWindowProcA(hwnd, uMsg, wParam, lParam);
}
return (0 != (NBWF_UNICODE & browserWnd->flags)) ?
CallWindowProcW(browserWnd->originalProc, hwnd, uMsg, wParam, lParam) :
CallWindowProcA(browserWnd->originalProc, hwnd, uMsg, wParam, lParam);
}
static void BrowserWindow_OnDestroy(HWND hwnd)
{
BROWSERWND *browserWnd = GetBrowserWnd(hwnd);
WNDPROC originalProc = browserWnd->originalProc;
BOOL fUnicode = (0 != (NBWF_UNICODE & browserWnd->flags));
BrowserWindow_Detach(hwnd);
if (NULL != originalProc)
{
if (FALSE != fUnicode)
CallWindowProcW(originalProc, hwnd, WM_DESTROY, 0, 0L);
else
CallWindowProcA(originalProc, hwnd, WM_DESTROY, 0, 0L);
}
}
static void BrowserWindow_OnQueueApc(HWND hwnd, LPARAM param)
{
BROWSERWND *browserWnd = GetBrowserWnd(hwnd);
if (NULL != browserWnd && NULL != browserWnd->eventHandler)
browserWnd->eventHandler->Event_InvokeApc(hwnd, param);
}
static void BrowserWindow_OnBrowserNotify(HWND hwnd, NMHDR *pnmh)
{
BROWSERWND *browserWnd = GetBrowserWnd(hwnd);
if (NULL == browserWnd || NULL == browserWnd->eventHandler)
return;
switch(pnmh->code)
{
case NBHN_READY:
browserWnd->eventHandler->Event_BrowserReady(hwnd);
break;
case NBHN_DOCUMENTREADY:
browserWnd->eventHandler->Event_DocumentReady(hwnd);
break;
case NBHN_CLOSING:
browserWnd->eventHandler->Event_BrowserClosing(hwnd);
break;
}
}
static LRESULT BrowserWindow_OnNotify(HWND hwnd, INT controlId, NMHDR *pnmh)
{
LRESULT result = BrowserWindow_CallOrigWindowProc(hwnd, WM_NOTIFY, (WPARAM)controlId, (LPARAM)pnmh);
switch(controlId)
{
case 0x1000/*IDC_BROWSER*/:
BrowserWindow_OnBrowserNotify(hwnd, pnmh);
break;
}
return result;
}
static LRESULT CALLBACK BrowserWindow_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch(uMsg)
{
case WM_DESTROY: BrowserWindow_OnDestroy(hwnd); return 0;
case WM_NOTIFY: return BrowserWindow_OnNotify(hwnd, (INT)wParam, (NMHDR*)lParam);
}
if (NULL != NBWM_QUEUEAPC && NBWM_QUEUEAPC == uMsg)
{
BrowserWindow_OnQueueApc(hwnd, lParam);
return 0;
}
return BrowserWindow_CallOrigWindowProc(hwnd, uMsg, wParam, lParam);
}
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