[vte/wip/egmont/bidi] mouse tracking and reporting

[Egmont Koblinger <egmontkob src gnome org>]

commit 3190aabd8e61067c3f1b735ac951fe082744030f
Author: Egmont Koblinger <egmont gmail com>
Date:   Wed Sep 19 13:25:31 2018 +0200

    mouse tracking and reporting

 BIDI-STATUS        |  4 ++++
 src/vte.cc         | 19 ++++++++++++++++++-
 src/vteinternal.hh |  1 +
 3 files changed, 23 insertions(+), 1 deletion(-)
---
diff --git a/BIDI-STATUS b/BIDI-STATUS
index a30f5f33..b8657f00 100644
--- a/BIDI-STATUS
+++ b/BIDI-STATUS
@@ -7,6 +7,8 @@ Done:
   paragraph has a foreign directionality character.
 - Mouse highlighting (logical in normal modes, visual in rectangle mode).
 - Copying text in logical modes.
+- Mouse reporting.
+- Regex match and explicit hyperlink underlining on hover.
 - VTE_DEBUG=bidi highlights characters with resolved RTL directionality.
 - Test file.
 - Configure flag.
@@ -17,6 +19,8 @@ Bugs:
   is split or two paragraphs are joined is just a first hack, needs to be
   reviewed, adjusted, fixed properly.
 - Copying text in rectangle mode.
+- Crashes when mouse selection initiates scrolling.
+- Crashes with quitting mc using mouse.
 
 Missing from first release:
 - Adjust mouse reporting.
diff --git a/src/vte.cc b/src/vte.cc
index 2e6b5020..58f296eb 100644
--- a/src/vte.cc
+++ b/src/vte.cc
@@ -1514,9 +1514,22 @@ Terminal::grid_coords_from_view_coords(vte::view::coords const& pos) const
 
         vte::grid::row_t row = pixel_to_row(pos.y);
 
+        /* BiDi: convert to logical column. */
+        vte::base::BidiRow const* bidirow = m_ringview.get_row_map(confine_grid_row(row));
+        col = bidirow->vis2log(col);
+
         return vte::grid::coords(row, col);
 }
 
+vte::grid::row_t
+Terminal::confine_grid_row(vte::grid::row_t const& row) const
+{
+        auto first_row = first_displayed_row();
+        auto last_row = last_displayed_row();
+
+        return CLAMP(row, first_row, last_row);
+}
+
 /*
  * Terminal::confined_grid_coords_from_view_coords:
  * @pos: the view coordinates
@@ -5940,6 +5953,10 @@ Terminal::match_hilite_update()
         glong col = pos.x / m_cell_width;
         glong row = pixel_to_row(pos.y);
 
+        /* BiDi: convert to logical column. */
+        vte::base::BidiRow const* bidirow = m_ringview.get_row_map(confine_grid_row(row));
+        col = bidirow->vis2log(col);
+
        _vte_debug_print(VTE_DEBUG_EVENTS,
                          "Match hilite update (%ld, %ld) -> %ld, %ld\n",
                          pos.x, pos.y, col, row);
@@ -8973,7 +8990,7 @@ Terminal::draw_rows(VteScreen *screen_,
                         determine_colors(cell, selected, &nfore, &nback, &ndeco);
 
                         nhilite = (nhyperlink && cell->attr.hyperlink_idx == m_hyperlink_hover_idx) ||
-                                  (!nhyperlink && m_match != nullptr && m_match_span.contains(row, col));
+                                  (!nhyperlink && m_match != nullptr && m_match_span.contains(row, 
bidirow->vis2log(col)));
 
                         /* See if it no longer fits the run. */
                         if (item_count > 0 &&
diff --git a/src/vteinternal.hh b/src/vteinternal.hh
index ce89123b..7c4f09c3 100644
--- a/src/vteinternal.hh
+++ b/src/vteinternal.hh
@@ -746,6 +746,7 @@ public:
 
         inline bool grid_coords_in_scrollback(vte::grid::coords const& rowcol) const { return rowcol.row() < 
m_screen->insert_delta; }
 
+        vte::grid::row_t confine_grid_row(vte::grid::row_t const& row) const;
         vte::grid::coords confine_grid_coords(vte::grid::coords const& rowcol) const;
         vte::grid::coords confined_grid_coords_from_event(GdkEvent const* event) const;
         vte::grid::coords confined_grid_coords_from_view_coords(vte::view::coords const& pos) const;