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[ncmenu_offer_input] change selected item on mouse click #2583

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nick black 2022-02-07 11:41:25 -05:00
parent b198c99f31
commit 196958dce0
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 37 additions and 12 deletions
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49
src/lib/menu.c
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@ -643,6 +643,29 @@ const char* ncmenu_selected(const ncmenu* n, ncinput* ni){
return sec->items[itemidx].desc;
}
// given the active section, return the line on which we clicked, or -1 if the
// click was not within said section. |y| and |x| ought be translated for the
// menu plane |n|->ncp.
static int
ncsection_click_index(const ncmenu* n, const ncmenu_int_section* sec,
unsigned dimy, unsigned dimx, int y, int x){
// don't allow a click on the side boundaries
if(sec->xoff < 0){
if(x > (int)dimx - 4 || x <= (int)dimx - 4 - sec->bodycols){
return -1;
}
}else{
if(x <= sec->xoff || x > sec->xoff + sec->bodycols){
return -1;
}
}
const int itemidx = n->bottom ? y - ((int)dimy - (int)sec->itemcount) + 2 : y - 2;
if(itemidx < 0 || itemidx >= (int)sec->itemcount){
return -1;
}
return itemidx;
}
const char* ncmenu_mouse_selected(const ncmenu* n, const ncinput* click,
ncinput* ni){
if(click->id != NCKEY_BUTTON1){
@ -663,20 +686,11 @@ const char* ncmenu_mouse_selected(const ncmenu* n, const ncinput* click,
return NULL;
}
const struct ncmenu_int_section* sec = &n->sections[n->unrolledsection];
// don't allow a click on the side boundaries
if(sec->xoff < 0){
if(x > (int)dimx - 4 || x <= (int)dimx - 4 - sec->bodycols){
return NULL;
}
}else{
if(x <= sec->xoff || x > sec->xoff + sec->bodycols){
return NULL;
}
}
const int itemidx = n->bottom ? y - ((int)dimy - (int)sec->itemcount) + 2 : y - 2;
if(itemidx < 0 || itemidx >= (int)sec->itemcount){
int itemidx = ncsection_click_index(n, sec, dimy, dimx, y, x);
if(itemidx < 0){
return NULL;
}
// don't allow a disabled item to be selected
if(sec->items[itemidx].disabled){
return NULL;
}
@ -697,6 +711,17 @@ bool ncmenu_offer_input(ncmenu* n, const ncinput* nc){
if(!ncplane_translate_abs(n->ncp, &y, &x)){
return false;
}
if(n->unrolledsection >= 0){
struct ncmenu_int_section* sec = &n->sections[n->unrolledsection];
int itemidx = ncsection_click_index(n, sec, dimy, dimx, y, x);
if(itemidx >= 0){
if(!sec->items[itemidx].disabled){
sec->itemselected = itemidx;
ncmenu_unroll(n, n->unrolledsection);
return false;
}
}
}
if(y != (n->bottom ? (int)dimy - 1 : 0)){
return false;
}