Merge pull request #430 from adamharrison/vsc-multicursor-shortcuts

Added in two new VSC-style multicursor shortcuts.

data/core/commands/findreplace.lua

@@ -96,13 +96,33 @@ local function has_selection()
   return core.active_view:is(DocView) and core.active_view.doc:has_selection()
 end
 
-command.add(has_selection, {
-  ["find-replace:select-next"] = function()
-    local l1, c1, l2, c2 = doc():get_selection(true)
-    local text = doc():get_text(l1, c1, l2, c2)
-    l1, c1, l2, c2 = search.find(doc(), l2, c2, text, { wrap = true })
-    if l2 then doc():set_selection(l2, c2, l1, c1) end
+local function has_unique_selection() 
+  local text = nil
+  for idx, line1, col1, line2, col2 in doc():get_selections(true, true) do
+    if line1 == line2 and col1 == col2 then return false end
+    local selection = doc():get_text(line1, col1, line2, col2)
+    if text ~= nil and text ~= selection then return false end
+    text = selection
   end
+  return text ~= nil
+end
+
+local function select_next(all)
+  local il1, ic1 = doc():get_selection(true)
+  for idx, l1, c1, l2, c2 in doc():get_selections(true, true) do
+    local text = doc():get_text(l1, c1, l2, c2)
+    repeat
+      l1, c1, l2, c2 = search.find(doc(), l2, c2, text, { wrap = true })
+      if l1 == il1 and c1 == ic1 then break end
+      if l2 then doc():add_selection(l2, c2, l1, c1) end
+    until not all or not l2
+    break
+  end
+end
+
+command.add(has_unique_selection, {
+  ["find-replace:select-next"] = function() select_next(false) end,
+  ["find-replace:select-all"] = function() select_next(true) end
 })
 
 command.add("core.docview", {

data/core/doc/init.lua

@@ -322,6 +322,7 @@ end
 function Doc:raw_insert(line, col, text, undo_stack, time)
   -- split text into lines and merge with line at insertion point
   local lines = split_lines(text)
+  local len = #lines[#lines]
   local before = self.lines[line]:sub(1, col - 1)
   local after = self.lines[line]:sub(col)
   for i = 1, #lines - 1 do
@@ -332,6 +333,14 @@ function Doc:raw_insert(line, col, text, undo_stack, time)
 
   -- splice lines into line array
   common.splice(self.lines, line, 1, lines)
+  
+  -- keep cursors where they should be
+  for idx, cline1, ccol1, cline2, ccol2 in self:get_selections(true, true) do
+    if cline1 < line then break end
+    local line_addition = (line < cline1 or col < ccol1) and #lines - 1 or 0
+    local column_addition = line == cline1 and ccol1 > col and len or 0
+    self:set_selections(idx, cline1 + line_addition, ccol1 + column_addition, cline2 + line_addition, ccol2 + column_addition)
+  end
 
   -- push undo
   local line2, col2 = self:position_offset(line, col, #text)
@@ -356,6 +365,14 @@ function Doc:raw_remove(line1, col1, line2, col2, undo_stack, time)
 
   -- splice line into line array
   common.splice(self.lines, line1, line2 - line1 + 1, { before .. after })
+  
+  -- move all cursors back if they share a line with the removed text
+  for idx, cline1, ccol1, cline2, ccol2 in self:get_selections(true, true) do
+    if cline1 < line2 then break end
+    local line_removal = line2 - line1
+    local column_removal = line2 == cline2 and col2 < ccol1 and (line2 == line1 and col2 - col1 or col2) or 0
+    self:set_selections(idx, cline1 - line_removal, ccol1 - column_removal, cline2 - line_removal, ccol2 - column_removal)
+  end
 
   -- update highlighter and assure selection is in bounds
   self.highlighter:invalidate(line1)
@@ -392,7 +409,7 @@ end
 
 
 function Doc:text_input(text, idx)
-  for sidx, line1, col1, line2, col2 in self:get_selections(true, idx) do
+  for sidx, line1, col1, line2, col2 in self:get_selections(true, idx or true) do
     if line1 ~= line2 or col1 ~= col2 then
       self:delete_to_cursor(sidx)
     end

data/core/docview.lua

@@ -367,16 +367,20 @@ function DocView:draw_line_body(idx, x, y)
       local x1 = x + self:get_col_x_offset(idx, col1)
       local x2 = x + self:get_col_x_offset(idx, col2)
       local lh = self:get_line_height()
-      renderer.draw_rect(x1, y, x2 - x1, lh, style.selection)
+      if x1 ~= x2 then
+        renderer.draw_rect(x1, y, x2 - x1, lh, style.selection)
+      end
     end
   end
+  local draw_highlight = nil
   for lidx, line1, col1, line2, col2 in self.doc:get_selections(true) do
     -- draw line highlight if caret is on this line
-    if config.highlight_current_line and (line1 == line2 and col1 == col2)
+    if draw_highlight ~= false and config.highlight_current_line
     and line1 == idx and core.active_view == self then
-      self:draw_line_highlight(x + self.scroll.x, y)
+      draw_highlight = (line1 == line2 and col1 == col2)
     end
   end
+  if draw_highlight then self:draw_line_highlight(x + self.scroll.x, y) end
 
   -- draw line's text
   self:draw_line_text(idx, x, y)

data/core/keymap-macos.lua

@@ -66,6 +66,7 @@ local function keymap_macos(keymap)
     ["cmd+a"] = "doc:select-all",
     ["cmd+d"] = { "find-replace:select-next", "doc:select-word" },
     ["cmd+l"] = "doc:select-lines",
+    ["cmd+shift+l"] = { "find-replace:select-all", "doc:select-word" },
     ["cmd+/"] = "doc:toggle-line-comments",
     ["cmd+up"] = "doc:move-lines-up",
     ["cmd+down"] = "doc:move-lines-down",

data/core/keymap.lua

@@ -170,6 +170,7 @@ keymap.add_direct {
   ["ctrl+a"] = "doc:select-all",
   ["ctrl+d"] = { "find-replace:select-next", "doc:select-word" },
   ["ctrl+l"] = "doc:select-lines",
+  ["ctrl+shift+l"] = { "find-replace:select-all", "doc:select-word" },
   ["ctrl+/"] = "doc:toggle-line-comments",
   ["ctrl+up"] = "doc:move-lines-up",
   ["ctrl+down"] = "doc:move-lines-down",