Merge branch 'master' into cas

1 files changed, 38 insertions, 0 deletions

diff --git a/scroll/scripts/maximize_when_only.lua b/scroll/scripts/maximize_when_only.lua
new file mode 100644
index 0000000..a047180
--- /dev/null
+++ b/scroll/scripts/maximize_when_only.lua
@@ -0,0 +1,38 @@
+local args, state = ...
+
+local maximized_containers = scroll.state_get_value(state, "maximized_containers") or {}
+
+local debug_notify = function(msg)
+	scroll.command(nil, "exec notify-send " .. msg)
+end
+
+local maximize_container = function(container, workspace)
+	local wf = scroll.container_get_width_fraction(container)
+	local hf = scroll.container_get_height_fraction(container)
+	maximized_containers[workspace] = { container = container, wf = wf, hf = hf, workspace = workspace }
+	scroll.state_set_value(state, "maximized_containers", maximized_containers)
+	scroll.command(container, "set_size h 1.0")
+	scroll.command(container, "set_size v 1.0")
+end
+
+local maximize_when_only = function()
+	local focused_workspace = scroll.focused_workspace()
+	local containers = scroll.workspace_get_tiling(focused_workspace)
+	local focused_container = scroll.focused_container()
+	local maximized_container = maximized_containers[focused_workspace]
+	if #containers == 1 then
+		if not maximized_container or (maximized_container and maximized_container.container ~= focused_container) then
+			-- debug_notify("Maximizing")
+			maximize_container(focused_container, focused_workspace)
+		end
+	elseif #containers > 1 and maximized_container then
+		-- debug_notify("Shrinking")
+		scroll.command(maximized_container.container, "set_size h " .. maximized_container.wf)
+		scroll.command(maximized_container.container, "set_size v " .. maximized_container.hf)
+		maximized_containers[focused_workspace] = nil
+		scroll.state_set_value(state, "maximized_containers", maximized_containers)
+	end
+	scroll.command(focused_container, "nop")
+end
+
+scroll.add_callback("view_focus", maximize_when_only, nil)