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BMenuBar & Deskbar: Make the hack to call ShowMenuBar a lot less ugly. 

The previous hack, which as the comment (and __MWERKS__) implies
dates all the way back to the Be era, finally broke: int32 is "int"
on non-x86, not "long", and so this generated an undefined symbol
error on ARM.

The best solution seems to be to make StartMenuBar merely protected,
and then make a subclass where it is fully public to call it.
This is a lot less fragile (and much less ugly.)

Change-Id: I0519d0d9eeb1cc4523d0c6dd4fdfe8688ed1092c
Reviewed-on: https://review.haiku-os.org/c/1516
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
This commit is contained in:
Augustin Cavalier 2019-06-16 23:33:00 -04:00 committed by waddlesplash
parent 581a586f95
commit 74c38cab40
2 changed files with 17 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
headers/os/interface/MenuBar.h
View File

@ -79,6 +79,11 @@ public:
virtual status_t Perform(perform_code code, void* data);
protected:
void StartMenuBar(int32 menuIndex,
bool sticky = true, bool showMenu = false,
BRect* special_rect = NULL);
private:
friend class BWindow;
friend class BMenuField;
@ -91,12 +96,6 @@ private:
BMenuBar &operator=(const BMenuBar &);
// TODO: Tracker uses this function so we can't change
// its signature without breaking it
void StartMenuBar(int32 menuIndex,
bool sticky = true, bool showMenu = false,
BRect* special_rect = NULL);
static int32 _TrackTask(void *arg);
BMenuItem* _Track(int32 *action, int32 startIndex = -1,
bool showMenu = false);

34
src/apps/deskbar/BarWindow.cpp
View File

@ -68,24 +68,14 @@ All rights reserved.
#define B_TRANSLATION_CONTEXT "MainWindow"
// This is a very ugly hack to be able to call the private
// BMenuBar::StartMenuBar() method from the TBarWindow::ShowBeMenu() method.
// Don't do this at home -- but why the hell is this method private?
#if __MWERKS__
#define BMenuBar_StartMenuBar_Hack StartMenuBar__8BMenuBarFlbbP5BRect
#elif __GNUC__ <= 2
#define BMenuBar_StartMenuBar_Hack StartMenuBar__8BMenuBarlbT2P5BRect
#elif __GNUC__ > 2
#if B_HAIKU_64_BIT
#define BMenuBar_StartMenuBar_Hack _ZN8BMenuBar12StartMenuBarEibbP5BRect
#else
#define BMenuBar_StartMenuBar_Hack _ZN8BMenuBar12StartMenuBarElbbP5BRect
#endif
#else
# error "You may want to port this ugly hack to your compiler ABI"
#endif
extern "C" void
BMenuBar_StartMenuBar_Hack(BMenuBar*, int32, bool, bool, BRect*);
// This is a bit of a hack to be able to call BMenuBar::StartMenuBar(), which
// is private. Don't do this at home!
class TStartableMenuBar : public BMenuBar {
public:
void StartMenuBar(int32 menuIndex, bool sticky = true, bool showMenu = false,
BRect* special_rect = NULL) { BMenuBar::StartMenuBar(menuIndex, sticky, showMenu,
special_rect); }
};
TDeskbarMenu* TBarWindow::sDeskbarMenu = NULL;
@ -323,14 +313,14 @@ TBarWindow::DeskbarMenu()
void
TBarWindow::ShowDeskbarMenu()
{
BMenuBar* menuBar = fBarView->BarMenuBar();
TStartableMenuBar* menuBar = (TStartableMenuBar*)fBarView->BarMenuBar();
if (menuBar == NULL)
menuBar = KeyMenuBar();
menuBar = (TStartableMenuBar*)KeyMenuBar();
if (menuBar == NULL)
return;
BMenuBar_StartMenuBar_Hack(menuBar, 0, true, true, NULL);
menuBar->StartMenuBar(0, true, true, NULL);
}
@ -344,7 +334,7 @@ TBarWindow::ShowTeamMenu()
if (KeyMenuBar() == NULL)
return;
BMenuBar_StartMenuBar_Hack(KeyMenuBar(), index, true, true, NULL);
((TStartableMenuBar*)KeyMenuBar())->StartMenuBar(index, true, true, NULL);
}