From 0d73304750dcf0286048f75a060a8498c3e820e3 Mon Sep 17 00:00:00 2001
From: Dmitry Sapozhnikov <11535558+o-sdn-o@users.noreply.github.com>
Date: Thu, 8 Dec 2022 15:24:15 +0500
Subject: [PATCH] #273 Fix clipboard forwarding

---
 src/netxs/console/ansi.hpp     | 40 +++++++++++++++++++++++++++-------
 src/netxs/console/terminal.hpp | 22 +++++++++----------
 src/netxs/text/utf.hpp         | 31 +++++++++-----------------
 3 files changed, 52 insertions(+), 41 deletions(-)

diff --git a/src/netxs/console/ansi.hpp b/src/netxs/console/ansi.hpp
index e2293c11f2..a45c8b7b67 100644
--- a/src/netxs/console/ansi.hpp
+++ b/src/netxs/console/ansi.hpp
@@ -303,6 +303,7 @@ namespace netxs::ansi
             auto rawdata = view{ data.utf8 };
             if (data.kind == mime::disabled)
             {
+                auto valid = true;
                 kind = ansi::clip::textonly;
                 // rawdata=mime/size_x/size_y;data
                      if (rawdata.starts_with(ansi::mimeansi)) { rawdata.remove_prefix(ansi::mimeansi.length()); kind = mime::ansitext; }
@@ -312,21 +313,44 @@ namespace netxs::ansi
                 else if (rawdata.starts_with(ansi::mimesafe)) { rawdata.remove_prefix(ansi::mimesafe.length()); kind = mime::safetext; }
                 else
                 {
-                    rawdata = {};
+                    valid = faux;
+                    kind = mime::textonly;
+                    auto pos = rawdata.find(';');
+                    if (pos != text::npos)
+                    {
+                        rawdata = rawdata.substr(pos + 1);
+                    }
+                    else rawdata = {};
                 }
-                if (rawdata.size())
+                if (valid && rawdata.size())
                 {
-                    rawdata.remove_prefix(1);
-                    if (auto v = utf::to_int(rawdata))
+                    if (rawdata.front() == '/') // Proceed preview size if present.
                     {
-                        size.x = std::abs(v.value());
                         rawdata.remove_prefix(1);
                         if (auto v = utf::to_int(rawdata))
                         {
-                            size.y = std::abs(v.value());
-                            if (rawdata.size()) rawdata.remove_prefix(1);
+                            static constexpr auto max_value = twod{ 2000, 1000 }; //todo unify
+                            size.x = v.value();
+                            if (rawdata.size())
+                            {
+                                rawdata.remove_prefix(1);
+                                if (auto v = utf::to_int(rawdata))
+                                {
+                                    size.y = v.value();
+                                }
+                                else size.x = 0;
+                            }
+                            size = std::clamp(size, dot_00, max_value);
                         }
-                        else size.x = 0;
+                    }
+                    if (rawdata.size() && rawdata.front() == ';')
+                    {
+                        rawdata.remove_prefix(1);
+                    }
+                    else // Unknown format.
+                    {
+                        size = {};
+                        rawdata = {};
                     }
                 }
             }
diff --git a/src/netxs/console/terminal.hpp b/src/netxs/console/terminal.hpp
index c8588d81ec..63d06034ff 100644
--- a/src/netxs/console/terminal.hpp
+++ b/src/netxs/console/terminal.hpp
@@ -5368,11 +5368,6 @@ namespace netxs::ui
                 dnbox.move({ 0, y_end + 1     });
                 dest.plot(upbox, cell::shaders::full);
                 dest.plot(dnbox, cell::shaders::full);
-                //test
-                //auto temp = ansi::esc{};
-                //auto mark = cell{};
-                //temp.s11n<true, faux, true>(dest, mark);
-                //owner.forward_clipboard<faux>(temp);
             }
             // scroll_buf: Materialize selection of the scrollbuffer part.
             void selection_pickup(ansi::esc& yield, si32 selmod)
@@ -6040,20 +6035,23 @@ namespace netxs::ui
         vtty       ptycon; // term: PTY device. Should be destroyed first.
 
         // term: Forward clipboard data (OSC 52).
-        template<bool Decode = true>
         void forward_clipboard(view data)
         {
-            // Take all foci.
             auto gates = e2::form::state::keybd::enlist.param();
-            SIGNAL(tier::anycast, e2::form::state::keybd::enlist, gates);
-            // Signal them to set the clipboard data.
-            for (auto gate_id : gates)
+            SIGNAL(tier::anycast, e2::form::state::keybd::enlist, gates); // Take all foci.
+            for (auto gate_id : gates) // Signal them to set the clipboard data.
             {
                 if (auto ptr = bell::getref(gate_id))
                 if (auto gear_ptr = std::dynamic_pointer_cast<hids>(ptr))
                 {
-                    if constexpr (Decode) gear_ptr->set_clip_data(clip{ target->panel, utf::unbase64(data), clip::disabled });
-                    else                  gear_ptr->set_clip_data(clip{ target->panel,               data,  clip::ansitext });
+                    auto pos = data.find(';');
+                    if (pos != text::npos)
+                    {
+                        auto utf8 = text{};
+                        utf8 += data.substr(0, ++pos);
+                        utf8 += utf::unbase64(data.substr(pos));
+                        gear_ptr->set_clip_data(clip{ target->panel, utf8, clip::disabled });
+                    }
                 }
             }
         }
diff --git a/src/netxs/text/utf.hpp b/src/netxs/text/utf.hpp
index 76655242d6..60f9cc36ac 100644
--- a/src/netxs/text/utf.hpp
+++ b/src/netxs/text/utf.hpp
@@ -1263,16 +1263,10 @@ namespace netxs::utf
             auto pos = 0_sz;
             while ((pos = utf8.find(delimiter, cur)) != V1::npos)
             {
-                if constexpr (Plain)
-                {
-                    proc(view{ utf8.data() + cur, pos - cur });
-                    cur = pos + 1;
-                }
-                else
-                {
-                    if (!proc(view{ utf8.data() + cur, pos - cur })) return;
-                    cur = pos + 1;
-                }
+                auto frag = view{ utf8.data() + cur, pos - cur };
+                if constexpr (Plain) proc(frag);
+                else            if (!proc(frag)) return;
+                cur = pos + 1;
             }
             auto end = view{ utf8.data() + cur, utf8.size() - cur };
             proc(end);
@@ -1281,18 +1275,13 @@ namespace netxs::utf
         {
             auto cur = utf8.size();
             auto pos = utf8.size();
-            while ((pos = utf8.rfind(delimiter, cur)) != V1::npos)
+            while (cur && (pos = utf8.rfind(delimiter, cur - 1)) != V1::npos)
             {
-                if constexpr (Plain)
-                {
-                    proc(view{ utf8.data() + pos + 1, cur });
-                    cur = pos;
-                }
-                else
-                {
-                    if (!proc(view{ utf8.data() + pos + 1, cur })) return;
-                    cur = pos;
-                }
+                auto next = pos + 1;
+                auto frag = view{ utf8.data() + next, cur - next };
+                if constexpr (Plain) proc(frag);
+                else            if (!proc(frag)) return;
+                cur = pos;
             }
             auto end = view{ utf8.data(), cur };
             proc(end);