1 files changed, 70 insertions, 0 deletions
diff --git a/lua/nvim-lsp-installer/ui/init.lua b/lua/nvim-lsp-installer/ui/init.lua
new file mode 100644
index 00000000..3b8d830a
--- /dev/null
+++ b/lua/nvim-lsp-installer/ui/init.lua
@@ -0,0 +1,70 @@
+local Data = require "nvim-lsp-installer.data"
+local M = {}
+
+M.NodeType = Data.enum {
+    "NODE",
+    "STYLE_BLOCK",
+    "VIRTUAL_TEXT",
+    "HL_TEXT",
+}
+
+function M.Node(children)
+    return {
+        type = M.NodeType.NODE,
+        children = children,
+    }
+end
+
+function M.HlTextNode(lines_with_span_tuples)
+    if type(lines_with_span_tuples[1]) == "string" then
+        -- this enables a convenience API for just rendering a single line (with just a single span)
+        lines_with_span_tuples = { { lines_with_span_tuples } }
+    end
+    return {
+        type = M.NodeType.HL_TEXT,
+        lines = lines_with_span_tuples,
+    }
+end
+
+function M.Text(lines)
+    return M.HlTextNode(Data.list_map(function(line)
+        return { { line, "Normal" } }
+    end, lines))
+end
+
+M.CascadingStyle = Data.enum {
+    "INDENT",
+    "CENTERED",
+}
+
+function M.CascadingStyleNode(styles, children)
+    return {
+        type = M.NodeType.STYLE_BLOCK,
+        styles = styles,
+        children = children,
+    }
+end
+
+function M.VirtualTextNode(virt_text)
+    return {
+        type = M.NodeType.VIRTUAL_TEXT,
+        virt_text = virt_text,
+    }
+end
+
+function M.When(condition, a)
+    if condition then
+        if type(a) == "function" then
+            return a()
+        else
+            return a
+        end
+    end
+    return M.Node {}
+end
+
+function M.EmptyLine()
+    return M.Text { "" }
+end
+
+return M