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Bug 582057, part d: Simplify nsView::LoadWidget and return early if it fails. r=roc

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This commit is contained in:
Chris Jones 2010-08-20 14:29:01 -05:00
parent 7e921c626f
commit 4aa2f7ef7b
1 changed files with 45 additions and 46 deletions
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91
view/src/nsView.cpp
View File

@ -688,6 +688,11 @@ nsresult nsView::CreateWidget(const nsIID &aWindowIID,
NS_RELEASE(mWindow);
}
nsresult rv = LoadWidget(aWindowIID);
if (NS_FAILED(rv)) {
return rv;
}
PRBool initDataPassedIn = PR_TRUE;
nsWidgetInitData initData;
if (!aWidgetInitData) {
@ -702,48 +707,46 @@ nsresult nsView::CreateWidget(const nsIID &aWindowIID,
nsIntRect trect = CalcWidgetBounds(aWidgetInitData->mWindowType);
if (NS_OK == LoadWidget(aWindowIID))
{
nsCOMPtr<nsIDeviceContext> dx;
mViewManager->GetDeviceContext(*getter_AddRefs(dx));
nsCOMPtr<nsIDeviceContext> dx;
mViewManager->GetDeviceContext(*getter_AddRefs(dx));
if (aNative && aWidgetInitData->mWindowType != eWindowType_popup)
mWindow->Create(nsnull, aNative, trect, ::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
else
{
if (!initDataPassedIn && GetParent() &&
GetParent()->GetViewManager() != mViewManager)
initData.mListenForResizes = PR_TRUE;
if (aParentWidget) {
NS_ASSERTION(aWidgetInitData->mWindowType == eWindowType_popup,
"popup widget type expected");
mWindow->Create(aParentWidget, nsnull, trect,
if (aNative && aWidgetInitData->mWindowType != eWindowType_popup) {
mWindow->Create(nsnull, aNative, trect, ::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
}
else {
if (!initDataPassedIn && GetParent() &&
GetParent()->GetViewManager() != mViewManager)
initData.mListenForResizes = PR_TRUE;
if (aParentWidget) {
NS_ASSERTION(aWidgetInitData->mWindowType == eWindowType_popup,
"popup widget type expected");
mWindow->Create(aParentWidget, nsnull, trect,
::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
}
else {
nsIWidget* parentWidget = GetParent() ? GetParent()->GetNearestWidget(nsnull)
: nsnull;
if (aWidgetInitData->mWindowType == eWindowType_popup) {
// Without a parent, we can't make a popup. This can happen
// when printing
if (!parentWidget)
return NS_ERROR_FAILURE;
mWindow->Create(nsnull, parentWidget->GetNativeData(NS_NATIVE_WIDGET), trect,
::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
} else {
mWindow->Create(parentWidget, nsnull, trect,
::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
}
else {
nsIWidget* parentWidget = GetParent() ? GetParent()->GetNearestWidget(nsnull)
: nsnull;
if (aWidgetInitData->mWindowType == eWindowType_popup) {
// Without a parent, we can't make a popup. This can happen
// when printing
if (!parentWidget)
return NS_ERROR_FAILURE;
mWindow->Create(nsnull, parentWidget->GetNativeData(NS_NATIVE_WIDGET), trect,
::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
} else {
mWindow->Create(parentWidget, nsnull, trect,
::HandleEvent, dx, nsnull, nsnull, aWidgetInitData);
}
}
}
if (aEnableDragDrop) {
mWindow->EnableDragDrop(PR_TRUE);
}
// propagate the z-index to the widget.
UpdateNativeWidgetZIndexes(this, FindNonAutoZIndex(this));
}
if (aEnableDragDrop) {
mWindow->EnableDragDrop(PR_TRUE);
}
// propagate the z-index to the widget.
UpdateNativeWidgetZIndexes(this, FindNonAutoZIndex(this));
//make sure visibility state is accurate
if (aResetVisibility) {
@ -825,20 +828,16 @@ void nsView::SetZIndex(PRBool aAuto, PRInt32 aZIndex, PRBool aTopMost)
//
nsresult nsView::LoadWidget(const nsCID &aClassIID)
{
ViewWrapper* wrapper = new ViewWrapper(this);
if (!wrapper)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(wrapper); // Will be released in ~nsView
NS_ABORT_IF_FALSE(!mWindow, "Already have a widget?");
nsresult rv = CallCreateInstance(aClassIID, &mWindow);
if (NS_SUCCEEDED(rv)) {
// Set the widget's client data
mWindow->SetClientData(wrapper);
} else {
delete wrapper;
if (NS_FAILED(rv)) {
return rv;
}
ViewWrapper* wrapper = new ViewWrapper(this);
NS_ADDREF(wrapper); // Will be released in ~nsView
mWindow->SetClientData(wrapper);
return rv;
}