DWORD dwAspects;
DWORD dwAdvf;
IAdviseSink *pAdvSink;
+ IDropTarget* pCurDropTarget; /* The sub-item, which is currently dragged over */
+ IDataObject* pCurDataObject; /* The dragged data-object */
+ LONG iDragOverItem; /* Dragged over item's index, iff pCurDropTarget != NULL */
+ UINT iActiveTimersMask; /* Bookkeeping of activated timers for drag scrolling */
} IShellViewImpl;
static const IShellViewVtbl svvt;
if(pFolder) IShellFolder_AddRef(pFolder);
IShellFolder_QueryInterface(sv->pSFParent, &IID_IShellFolder2, (LPVOID*)&sv->pSF2Parent);
+ sv->pCurDropTarget = NULL;
+ sv->pCurDataObject = NULL;
+ sv->iDragOverItem = 0;
+ sv->iActiveTimersMask = 0;
+
TRACE("(%p)->(%p)\n",sv, pFolder);
return (IShellView *) sv;
}
}
}
- if (SUCCEEDED(IShellFolder_CreateViewObject(This->pSFParent, This->hWnd, &IID_IDropTarget, (LPVOID*)&pdt)))
+ if (SUCCEEDED(IUnknown_QueryInterface((IUnknown*)&This->lpVtbl, &IID_IDropTarget, (LPVOID*)&pdt)))
{
RegisterDragDrop(This->hWnd, pdt);
IDropTarget_Release(pdt);
return IShellFolder_Release((IShellFolder*)This);
}
-static HRESULT WINAPI ISVDropTarget_DragEnter(
- IDropTarget *iface,
- IDataObject *pDataObject,
- DWORD grfKeyState,
- POINTL pt,
- DWORD *pdwEffect)
-{
+/******************************************************************************
+ * scroll_timer_proc [Internal]
+ *
+ * Timer callback function for drag&drop scrolling
+ */
- IShellViewImpl *This = impl_from_IDropTarget(iface);
+#define IDT_UP 0x1u
+#define IDT_DOWN 0x2u
+#define IDT_LEFT 0x4u
+#define IDT_RIGHT 0x8u
- FIXME("Stub: This=%p, DataObject=%p\n",This,pDataObject);
+VOID CALLBACK scroll_timer_proc(HWND hwnd, UINT uMsg, UINT_PTR idTimer, DWORD dwTimer) {
+ switch (idTimer) {
+ case IDT_UP:
+ SendMessageW(hwnd, WM_VSCROLL, SB_LINEUP, 0);
+ break;
+ case IDT_DOWN:
+ SendMessageW(hwnd, WM_VSCROLL, SB_LINEDOWN, 0);
+ break;
+ case IDT_LEFT:
+ SendMessageW(hwnd, WM_HSCROLL, SB_LINEUP, 0);
+ break;
+ case IDT_RIGHT:
+ SendMessageW(hwnd, WM_HSCROLL, SB_LINEDOWN, 0);
+ break;
+ }
+}
- return E_NOTIMPL;
+/******************************************************************************
+ * start_stop_timer [Internal]
+ */
+static inline void start_stop_timer(IShellViewImpl *This, UINT_PTR idTimer, BOOL fStart) {
+ if (fStart && !(This->iActiveTimersMask & idTimer)) {
+ SetTimer(This->hWndList, idTimer, 200, scroll_timer_proc);
+ This->iActiveTimersMask |= idTimer;
+ }
+ if (!fStart && This->iActiveTimersMask & idTimer) {
+ KillTimer(This->hWndList, idTimer);
+ This->iActiveTimersMask &= ~idTimer;
+ }
}
-static HRESULT WINAPI ISVDropTarget_DragOver(
- IDropTarget *iface,
- DWORD grfKeyState,
- POINTL pt,
- DWORD *pdwEffect)
+/******************************************************************************
+ * drag_notify_subitem [Internal]
+ *
+ * Figure out the shellfolder object, which is currently under the mouse cursor
+ * and notify it via the IDropTarget interface.
+ */
+
+#define SCROLLAREAWIDTH 20
+
+static HRESULT drag_notify_subitem(IShellViewImpl *This, DWORD grfKeyState, POINTL pt,
+ DWORD *pdwEffect)
+{
+ LVHITTESTINFO htinfo;
+ LVITEMA lvItem;
+ LONG lResult;
+ HRESULT hr;
+ RECT clientRect;
+
+ /* Map from global to client coordinates and query the index of the listview-item, which is
+ * currently under the mouse cursor. */
+ htinfo.pt.x = pt.x;
+ htinfo.pt.y = pt.y;
+ htinfo.flags = LVHT_ONITEM;
+ ScreenToClient(This->hWndList, &htinfo.pt);
+ lResult = SendMessageW(This->hWndList, LVM_HITTEST, 0, (LPARAM)&htinfo);
+
+ /* Start or stop the drag scrolling timers */
+ GetClientRect(This->hWndList, &clientRect);
+ start_stop_timer(This, IDT_LEFT, htinfo.pt.x < SCROLLAREAWIDTH);
+ start_stop_timer(This, IDT_RIGHT, htinfo.pt.x > clientRect.right - SCROLLAREAWIDTH);
+ start_stop_timer(This, IDT_UP, htinfo.pt.y < SCROLLAREAWIDTH);
+ start_stop_timer(This, IDT_DOWN, htinfo.pt.y > clientRect.bottom - SCROLLAREAWIDTH);
+
+ /* If we are still over the previous sub-item, notify it via DragOver and return. */
+ if (This->pCurDropTarget && lResult == This->iDragOverItem)
+ return IDropTarget_DragOver(This->pCurDropTarget, grfKeyState, pt, pdwEffect);
+
+ /* We've left the previous sub-item, notify it via DragLeave and Release it. */
+ if (This->pCurDropTarget) {
+ IDropTarget_DragLeave(This->pCurDropTarget);
+ IDropTarget_Release(This->pCurDropTarget);
+ This->pCurDropTarget = NULL;
+ }
+
+ This->iDragOverItem = lResult;
+ if (lResult == -1) {
+ /* We are not above one of the listview's subitems. Bind to the parent folder's
+ * DropTarget interface. */
+ hr = IShellFolder_QueryInterface(This->pSFParent, &IID_IDropTarget,
+ (LPVOID*)&This->pCurDropTarget);
+ } else {
+ /* Query the relative PIDL of the shellfolder object represented by the currently
+ * dragged over listview-item ... */
+ ZeroMemory(&lvItem, sizeof(lvItem));
+ lvItem.mask = LVIF_PARAM;
+ lvItem.iItem = lResult;
+ ListView_GetItemA(This->hWndList, &lvItem);
+
+ /* ... and bind pCurDropTarget to the IDropTarget interface of an UIObject of this object */
+ hr = IShellFolder_GetUIObjectOf(This->pSFParent, This->hWndList, 1,
+ (LPCITEMIDLIST*)&lvItem.lParam, &IID_IDropTarget, NULL, (LPVOID*)&This->pCurDropTarget);
+ }
+
+ /* If anything failed, pCurDropTarget should be NULL now, which ought to be a save state. */
+ if (FAILED(hr))
+ return hr;
+
+ /* Notify the item just entered via DragEnter. */
+ return IDropTarget_DragEnter(This->pCurDropTarget, This->pCurDataObject, grfKeyState, pt, pdwEffect);
+}
+
+static HRESULT WINAPI ISVDropTarget_DragEnter(IDropTarget *iface, IDataObject *pDataObject,
+ DWORD grfKeyState, POINTL pt, DWORD *pdwEffect)
{
- IShellViewImpl *This = impl_from_IDropTarget(iface);
+ IShellViewImpl *This = impl_from_IDropTarget(iface);
- FIXME("Stub: This=%p\n",This);
+ /* Get a hold on the data object for later calls to DragEnter on the sub-folders */
+ This->pCurDataObject = pDataObject;
+ IDataObject_AddRef(pDataObject);
- return E_NOTIMPL;
+ return drag_notify_subitem(This, grfKeyState, pt, pdwEffect);
}
-static HRESULT WINAPI ISVDropTarget_DragLeave(
- IDropTarget *iface)
+static HRESULT WINAPI ISVDropTarget_DragOver(IDropTarget *iface, DWORD grfKeyState, POINTL pt,
+ DWORD *pdwEffect)
{
- IShellViewImpl *This = impl_from_IDropTarget(iface);
+ IShellViewImpl *This = impl_from_IDropTarget(iface);
+ return drag_notify_subitem(This, grfKeyState, pt, pdwEffect);
+}
- FIXME("Stub: This=%p\n",This);
+static HRESULT WINAPI ISVDropTarget_DragLeave(IDropTarget *iface) {
+ IShellViewImpl *This = impl_from_IDropTarget(iface);
- return E_NOTIMPL;
+ IDropTarget_DragLeave(This->pCurDropTarget);
+
+ IDropTarget_Release(This->pCurDropTarget);
+ IDataObject_Release(This->pCurDataObject);
+ This->pCurDataObject = NULL;
+ This->pCurDropTarget = NULL;
+ This->iDragOverItem = 0;
+
+ start_stop_timer(This, IDT_LEFT, FALSE);
+ start_stop_timer(This, IDT_RIGHT, FALSE);
+ start_stop_timer(This, IDT_UP, FALSE);
+ start_stop_timer(This, IDT_DOWN, FALSE);
+
+ return S_OK;
}
-static HRESULT WINAPI ISVDropTarget_Drop(
- IDropTarget *iface,
- IDataObject* pDataObject,
- DWORD grfKeyState,
- POINTL pt,
- DWORD *pdwEffect)
+static HRESULT WINAPI ISVDropTarget_Drop(IDropTarget *iface, IDataObject* pDataObject,
+ DWORD grfKeyState, POINTL pt, DWORD *pdwEffect)
{
- IShellViewImpl *This = impl_from_IDropTarget(iface);
+ IShellViewImpl *This = impl_from_IDropTarget(iface);
- FIXME("Stub: This=%p\n",This);
+ IDropTarget_Drop(This->pCurDropTarget, pDataObject, grfKeyState, pt, pdwEffect);
- return E_NOTIMPL;
+ IDropTarget_Release(This->pCurDropTarget);
+ IDataObject_Release(This->pCurDataObject);
+ This->pCurDataObject = NULL;
+ This->pCurDropTarget = NULL;
+ This->iDragOverItem = 0;
+
+ start_stop_timer(This, IDT_LEFT, FALSE);
+ start_stop_timer(This, IDT_RIGHT, FALSE);
+ start_stop_timer(This, IDT_UP, FALSE);
+ start_stop_timer(This, IDT_DOWN, FALSE);
+
+ return S_OK;
}
static const IDropTargetVtbl dtvt =
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