Changeset - r12070:5c1c65fdc05b
[Not reviewed]
master
0 1 0
alberth - 15 years ago 2009-05-31 14:30:58
alberth@openttd.org
(svn r16484) -Cleanup: Renamed widget variable to widget_index and introduced widget_type variable.
-Fix: Prevented out-of-bounds array access when not clicking at a widget.
1 file changed with 24 insertions and 24 deletions:
0 comments (0 inline, 0 general)
src/window.cpp
Show inline comments
 
@@ -249,15 +249,16 @@ static void StartWindowSizing(Window *w,
 
 */
 
static void DispatchLeftClickEvent(Window *w, int x, int y, bool double_click)
 
{
 
	int widget = 0;
 
	int widget_index = 0;
 
	if (w->desc_flags & WDF_DEF_WIDGET) {
 
		widget = GetWidgetFromPos(w, x, y);
 
		widget_index = GetWidgetFromPos(w, x, y);
 
		WidgetType widget_type = (widget_index >= 0) ? w->widget[widget_index].type : WWT_EMPTY;
 

	
 
		bool focused_widget_changed = false;
 
		/* If clicked on a window that previously did dot have focus */
 
		if (_focused_window != w &&
 
				(w->desc_flags & WDF_NO_FOCUS) == 0 &&           // Don't lose focus to toolbars
 
				!(w->desc_flags & WDF_STD_BTN && w->widget[widget].type == WWT_CLOSEBOX)) { // Don't change focused window if 'X' (close button) was clicked
 
				!((w->desc_flags & WDF_STD_BTN) && widget_type == WWT_CLOSEBOX)) { // Don't change focused window if 'X' (close button) was clicked
 
			focused_widget_changed = true;
 
			if (_focused_window != NULL) {
 
				_focused_window->OnFocusLost();
 
@@ -269,16 +270,16 @@ static void DispatchLeftClickEvent(Windo
 
			w->OnFocus();
 
		}
 

	
 
		if (widget < 0) return; // exit if clicked outside of widgets
 
		if (widget_index < 0) return; // exit if clicked outside of widgets
 

	
 
		/* don't allow any interaction if the button has been disabled */
 
		if (w->IsWidgetDisabled(widget)) return;
 
		if (w->IsWidgetDisabled(widget_index)) return;
 

	
 
		const Widget *wi = &w->widget[widget];
 
		const Widget *wi = &w->widget[widget_index];
 

	
 
		/* Clicked on a widget that is not disabled.
 
		 * So unless the clicked widget is the caption bar, change focus to this widget */
 
		if (wi->type != WWT_CAPTION) {
 
		if (widget_type != WWT_CAPTION) {
 
			/* Close the OSK window if a edit box loses focus */
 
			if (w->focused_widget != NULL && w->focused_widget->type == WWT_EDITBOX && // An edit box was previously selected
 
					w->focused_widget != wi &&                                 // and focus is going to change
 
@@ -286,57 +287,56 @@ static void DispatchLeftClickEvent(Windo
 
				DeleteWindowById(WC_OSK, 0);
 
			}
 

	
 
			focused_widget_changed = w->SetFocusedWidget(widget);
 
			focused_widget_changed = w->SetFocusedWidget(widget_index);
 
		}
 

	
 
		if (wi->type & WWB_PUSHBUTTON) {
 
		if (widget_type & WWB_PUSHBUTTON) {
 
			/* special widget handling for buttons*/
 
			switch (wi->type) {
 
			switch (widget_type) {
 
				default: NOT_REACHED();
 
				case WWT_PANEL   | WWB_PUSHBUTTON: // WWT_PUSHBTN
 
				case WWT_IMGBTN  | WWB_PUSHBUTTON: // WWT_PUSHIMGBTN
 
				case WWT_TEXTBTN | WWB_PUSHBUTTON: // WWT_PUSHTXTBTN
 
					w->HandleButtonClick(widget);
 
					w->HandleButtonClick(widget_index);
 
					break;
 
			}
 
		} else if (wi->type == WWT_SCROLLBAR || wi->type == WWT_SCROLL2BAR || wi->type == WWT_HSCROLLBAR) {
 
		} else if (widget_type == WWT_SCROLLBAR || widget_type == WWT_SCROLL2BAR || widget_type == WWT_HSCROLLBAR) {
 
			ScrollbarClickHandler(w, wi, x, y);
 
		} else if (wi->type == WWT_EDITBOX && !focused_widget_changed) { // Only open the OSK window if clicking on an already focused edit box
 
		} else if (widget_type == WWT_EDITBOX && !focused_widget_changed) { // Only open the OSK window if clicking on an already focused edit box
 
			/* Open the OSK window if clicked on an edit box */
 
			QueryStringBaseWindow *qs = dynamic_cast<QueryStringBaseWindow*>(w);
 
			QueryStringBaseWindow *qs = dynamic_cast<QueryStringBaseWindow *>(w);
 
			if (qs != NULL) {
 
				const int widget_index = wi - w->widget;
 
				qs->OnOpenOSKWindow(widget_index);
 
			}
 
		}
 

	
 
		/* Close any child drop down menus. If the button pressed was the drop down
 
		 * list's own button, then we should not process the click any further. */
 
		if (HideDropDownMenu(w) == widget) return;
 
		if (HideDropDownMenu(w) == widget_index) return;
 

	
 
		if (w->desc_flags & WDF_STD_BTN) {
 
			if (w->widget[widget].type == WWT_CLOSEBOX) { // 'X'
 
			if (widget_type == WWT_CLOSEBOX) { // 'X'
 
				delete w;
 
				return;
 
			}
 

	
 
			if (w->widget[widget].type == WWT_CAPTION) { // 'Title bar'
 
			if (widget_type == WWT_CAPTION) { // 'Title bar'
 
				StartWindowDrag(w);
 
				return;
 
			}
 
		}
 

	
 
		if (w->desc_flags & WDF_RESIZABLE && wi->type == WWT_RESIZEBOX) {
 
		if (w->desc_flags & WDF_RESIZABLE && widget_type == WWT_RESIZEBOX) {
 
			/* When the resize widget is on the left size of the window
 
			 * we assume that that button is used to resize to the left. */
 
			StartWindowSizing(w, wi->left < (w->width / 2));
 
			w->InvalidateWidget(widget);
 
			w->InvalidateWidget(widget_index);
 
			return;
 
		}
 

	
 
		if (w->desc_flags & WDF_STICKY_BUTTON && wi->type == WWT_STICKYBOX) {
 
		if (w->desc_flags & WDF_STICKY_BUTTON && widget_type == WWT_STICKYBOX) {
 
			w->flags4 ^= WF_STICKY;
 
			w->InvalidateWidget(widget);
 
			w->InvalidateWidget(widget_index);
 
			return;
 
		}
 
	}
 
@@ -344,9 +344,9 @@ static void DispatchLeftClickEvent(Windo
 
	Point pt = { x, y };
 

	
 
	if (double_click) {
 
		w->OnDoubleClick(pt, widget);
 
		w->OnDoubleClick(pt, widget_index);
 
	} else {
 
		w->OnClick(pt, widget);
 
		w->OnClick(pt, widget_index);
 
	}
 
}
 

	
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