diff options
Diffstat (limited to 'src/popupwin.c')
| -rw-r--r-- | src/popupwin.c | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/src/popupwin.c b/src/popupwin.c index aa0bda3c9..96263bca4 100644 --- a/src/popupwin.c +++ b/src/popupwin.c @@ -234,6 +234,58 @@ popup_drag(win_T *wp) popup_adjust_position(wp); } +/* + * Set w_firstline to match the current "wp->w_topline". + */ + void +popup_set_firstline(win_T *wp) +{ + int height = wp->w_height; + + wp->w_firstline = wp->w_topline; + popup_adjust_position(wp); + + // we don't want the popup to get smaller, decrement the first line + // until it doesn't + while (wp->w_firstline > 1 && wp->w_height < height) + { + --wp->w_firstline; + popup_adjust_position(wp); + } +} + +/* + * Handle a click in a popup window, if it is in the scrollbar. + */ + void +popup_handle_scrollbar_click(win_T *wp, int row, int col) +{ + int height = popup_height(wp); + int old_topline = wp->w_topline; + + if (wp->w_has_scrollbar == 0) + return; + if (row >= wp->w_popup_border[0] + && row < height - wp->w_popup_border[2] + && col == popup_width(wp) - 1) + { + if (row >= height / 2) + { + // Click in lower half, scroll down. + if (wp->w_topline < wp->w_buffer->b_ml.ml_line_count) + ++wp->w_topline; + } + else if (wp->w_topline > 1) + // click on upper half, scroll up. + --wp->w_topline; + if (wp->w_topline != old_topline) + { + popup_set_firstline(wp); + redraw_win_later(wp, NOT_VALID); + } + } +} + #if defined(FEAT_TIMERS) static void popup_add_timeout(win_T *wp, int time) @@ -631,7 +683,8 @@ popup_width(win_T *wp) { return wp->w_width + wp->w_popup_padding[3] + wp->w_popup_border[3] - + wp->w_popup_padding[1] + wp->w_popup_border[1]; + + wp->w_popup_padding[1] + wp->w_popup_border[1] + + wp->w_has_scrollbar; } /* |