Exposed doc's internal insert/remove: Doc:raw_insert|remove
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rxi
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ef53453246
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@ -225,11 +225,43 @@ function Doc:get_char(line, col)
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end
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local push_undo
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local function push_undo(undo_stack, time, type, ...)
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undo_stack[undo_stack.idx] = { type = type, time = time, ... }
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undo_stack[undo_stack.idx - config.max_undos] = nil
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undo_stack.idx = undo_stack.idx + 1
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end
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local function insert(self, undo_stack, time, line, col, text)
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line, col = self:sanitize_position(line, col)
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local function pop_undo(self, undo_stack, redo_stack)
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-- pop command
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local cmd = undo_stack[undo_stack.idx - 1]
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if not cmd then return end
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undo_stack.idx = undo_stack.idx - 1
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-- handle command
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if cmd.type == "insert" then
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local line, col, text = table.unpack(cmd)
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self:raw_insert(line, col, text, redo_stack, cmd.time)
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elseif cmd.type == "remove" then
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local line1, col1, line2, col2 = table.unpack(cmd)
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self:raw_remove(line1, col1, line2, col2, redo_stack, cmd.time)
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elseif cmd.type == "selection" then
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self.selection.a.line, self.selection.a.col = cmd[1], cmd[2]
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self.selection.b.line, self.selection.b.col = cmd[3], cmd[4]
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end
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-- if next undo command is within the merge timeout then treat as a single
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-- command and continue to execute it
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local next = undo_stack[undo_stack.idx - 1]
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if next and math.abs(cmd.time - next.time) < config.undo_merge_timeout then
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return pop_undo(self, undo_stack, redo_stack)
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end
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end
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function Doc:raw_insert(line, col, text, undo_stack, time)
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-- split text into lines and merge with line at insertion point
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local lines = split_lines(text)
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local before = self.lines[line]:sub(1, col - 1)
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@ -245,23 +277,20 @@ local function insert(self, undo_stack, time, line, col, text)
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-- push undo
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local line2, col2 = self:position_offset(line, col, #text)
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push_undo(self, undo_stack, time, "selection", self:get_selection())
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push_undo(self, undo_stack, time, "remove", line, col, line2, col2)
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push_undo(undo_stack, time, "selection", self:get_selection())
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push_undo(undo_stack, time, "remove", line, col, line2, col2)
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-- update highlighter
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-- update highlighter and assure selection is in bounds
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self.highlighter:invalidate(line)
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self:sanitize_selection()
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end
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local function remove(self, undo_stack, time, line1, col1, line2, col2)
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line1, col1 = self:sanitize_position(line1, col1)
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line2, col2 = self:sanitize_position(line2, col2)
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line1, col1, line2, col2 = sort_positions(line1, col1, line2, col2)
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function Doc:raw_remove(line1, col1, line2, col2, undo_stack, time)
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-- push undo
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local text = self:get_text(line1, col1, line2, col2)
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push_undo(self, undo_stack, time, "selection", self:get_selection())
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push_undo(self, undo_stack, time, "insert", line1, col1, text)
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push_undo(undo_stack, time, "selection", self:get_selection())
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push_undo(undo_stack, time, "insert", line1, col1, text)
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-- get line content before/after removed text
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local before = self.lines[line1]:sub(1, col1 - 1)
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@ -270,56 +299,25 @@ local function remove(self, undo_stack, time, line1, col1, line2, col2)
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-- splice line into line array
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splice(self.lines, line1, line2 - line1 + 1, { before .. after })
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-- update highlighter
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-- update highlighter and assure selection is in bounds
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self.highlighter:invalidate(line1)
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end
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function Doc:insert(...)
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insert(self, self.undo_stack, system.get_time(), ...)
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self:sanitize_selection()
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end
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function Doc:insert(line, col, text)
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self.redo_stack = { idx = 1 }
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line, col = self:sanitize_position(line, col)
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self:raw_insert(line, col, text, self.undo_stack, system.get_time())
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end
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function Doc:remove(...)
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remove(self, self.undo_stack, system.get_time(), ...)
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self:sanitize_selection()
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function Doc:remove(line1, col1, line2, col2)
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self.redo_stack = { idx = 1 }
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end
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function push_undo(self, undo_stack, time, type, ...)
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undo_stack[undo_stack.idx] = { type = type, time = time, ... }
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undo_stack[undo_stack.idx - config.max_undos] = nil
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undo_stack.idx = undo_stack.idx + 1
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end
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local function pop_undo(self, undo_stack, redo_stack)
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-- pop command
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local cmd = undo_stack[undo_stack.idx - 1]
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if not cmd then return end
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undo_stack.idx = undo_stack.idx - 1
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-- handle command
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if cmd.type == "insert" then
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insert(self, redo_stack, cmd.time, table.unpack(cmd))
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elseif cmd.type == "remove" then
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remove(self, redo_stack, cmd.time, table.unpack(cmd))
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elseif cmd.type == "selection" then
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self.selection.a.line, self.selection.a.col = cmd[1], cmd[2]
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self.selection.b.line, self.selection.b.col = cmd[3], cmd[4]
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end
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-- if next undo command is within the merge timeout then treat as a single
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-- command and continue to execute it
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local next = undo_stack[undo_stack.idx - 1]
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if next and math.abs(cmd.time - next.time) < config.undo_merge_timeout then
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return pop_undo(self, undo_stack, redo_stack)
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end
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line1, col1 = self:sanitize_position(line1, col1)
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line2, col2 = self:sanitize_position(line2, col2)
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line1, col1, line2, col2 = sort_positions(line1, col1, line2, col2)
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self:raw_remove(line1, col1, line2, col2, self.undo_stack, system.get_time())
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end
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