Merge pull request #15 from adamharrison/master

Added in the restoretabs plugin to restore recently closed tabs.

2 files changed, 56 insertions, 0 deletions

diff --git a/README.md b/README.md
index 9701ed2..c164212 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,7 @@ Plugin | Description
 [`openselected`](plugins/openselected.lua?raw=1) | Opens the selected filename or url
 ~~[`projectmanager`](plugins/projectmanager.lua?raw=1)~~ | Integrated in lite-xl with improvements ~~Save projects and load/reload them quickly~~
 [`rainbowparen`](plugins/rainbowparen.lua?raw=1) | Show nesting of parentheses with rainbow colours
+[`restoretabs`](plugins/restoretabs.lua?raw=1) | Keep a list of recently closed tabs, and restore the tab in order on cntrl+shift+t.
 *[`scale`](plugins/scale.lua?raw=1)* | Provides support for dynamically adjusting the scale of the code font / UI (`ctrl+-`, `ctrl+=`)
 [`scalestatus`](plugins/scalestatus.lua?raw=1) | Displays current scale (zoom) in status view (depends on scale plugin)
 [`selectionhighlight`](plugins/selectionhighlight.lua?raw=1) | Highlights regions of code that match the current selection *([screenshot](https://user-images.githubusercontent.com/3920290/80710883-5f597c80-8ae7-11ea-97f0-76dfacc08439.png))*
diff --git a/plugins/restoretabs.lua b/plugins/restoretabs.lua
new file mode 100644
index 0000000..48bb6ea
--- /dev/null
+++ b/plugins/restoretabs.lua
@@ -0,0 +1,55 @@
+-- lite-xl 1.16
+-- Not perfect, because we can't actually figure out when something closes, but should be good enough, so long as we check the list of open views.
+-- Maybe find a better way to get at "Node"?
+local core = require "core"
+local RootView = require "core.rootview"
+local command = require "core.command"
+local keymap = require "core.keymap"
+
+local update = RootView.update
+local initialized_tab_system = false
+
+local tab_history = { }
+local history_size = 10
+
+RootView.update = function(self)
+  update(self)
+  if not initialized_tab_system then
+    local Node = getmetatable(self.root_node)
+    local old_close = Node.close_view
+    
+    Node.close_view = function(self, root, view)
+      if view.doc and view.doc.abs_filename then
+        local closing_filename = view.doc.abs_filename
+        for i,filename in ipairs(tab_history) do
+          if filename == closing_filename then
+            table.remove(tab_history, i)
+            break
+          end
+        end
+        table.insert(tab_history, closing_filename)
+        if #tab_history > history_size then
+          tab_history.remove(tab_history, 1)
+        end
+      end
+      old_close(self, root, view)
+    end
+
+    initialized_tab_system = true
+  end
+end
+
+
+command.add("core.docview", {
+  ["restore-tabs:restore-tab"] = function()
+    if #tab_history > 0 then
+      local file = tab_history[#tab_history]
+      core.root_view:open_doc(core.open_doc(file))
+      table.remove(tab_history)
+    end
+  end
+})
+
+keymap.add {
+  ["ctrl+shift+t"] = "restore-tabs:restore-tab"
+}