1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
local core = require "core"
local DocView = require "core.docview"
local workspace_filename = ".lite_workspace.lua"
local function serialize(val)
if type(val) == "string" then
return string.format("%q", val)
elseif type(val) == "table" then
local t = {}
for k, v in pairs(val) do
table.insert(t, "[" .. serialize(k) .. "]=" .. serialize(v))
end
return "{" .. table.concat(t, ",") .. "}"
end
return tostring(val)
end
local function has_no_locked_children(node)
if node.locked then return false end
if node.type == "leaf" then return true end
return has_no_locked_children(node.a) and has_no_locked_children(node.b)
end
local function get_unlocked_root(node)
if node.type == "leaf" then
return not node.locked and node
end
if has_no_locked_children(node) then
return node
end
return get_unlocked_root(node.a) or get_unlocked_root(node.b)
end
local function save_view(view)
local mt = getmetatable(view)
if mt == DocView then
return {
type = "doc",
active = (core.active_view == view),
filename = view.doc.filename,
selection = { view.doc:get_selection() },
scroll = { x = view.scroll.to.x, y = view.scroll.to.y },
text = not view.doc.filename and view.doc:get_text(1, 1, math.huge, math.huge)
}
end
for name, mod in pairs(package.loaded) do
if mod == mt then
return {
type = "view",
active = (core.active_view == view),
module = name
}
end
end
end
local function load_view(t)
if t.type == "doc" then
local ok, doc = pcall(core.open_doc, t.filename)
if not ok then
return DocView(core.open_doc())
end
local dv = DocView(doc)
if t.text then doc:insert(1, 1, t.text) end
doc:set_selection(table.unpack(t.selection))
dv.last_line, dv.last_col = doc:get_selection()
dv.scroll.x, dv.scroll.to.x = t.scroll.x, t.scroll.x
dv.scroll.y, dv.scroll.to.y = t.scroll.y, t.scroll.y
return dv
end
return require(t.module)()
end
local function save_node(node)
local res = {}
res.type = node.type
if node.type == "leaf" then
res.views = {}
for _, view in ipairs(node.views) do
local t = save_view(view)
if t then
table.insert(res.views, t)
if node.active_view == view then
res.active_view = #res.views
end
end
end
else
res.divider = node.divider
res.a = save_node(node.a)
res.b = save_node(node.b)
end
return res
end
local function load_node(node, t)
if t.type == "leaf" then
local res
for _, v in ipairs(t.views) do
local view = load_view(v)
if v.active then res = view end
node:add_view(view)
end
if t.active_view then
node:set_active_view(node.views[t.active_view])
end
return res
else
node:split(t.type == "hsplit" and "right" or "down")
node.divider = t.divider
local res1 = load_node(node.a, t.a)
local res2 = load_node(node.b, t.b)
return res1 or res2
end
end
local function save_workspace()
local root = get_unlocked_root(core.root_view.root_node)
local fp = io.open(workspace_filename, "w")
if fp then
fp:write("return ", serialize(save_node(root)), "\n")
fp:close()
end
end
local function load_workspace()
local ok, t = pcall(dofile, workspace_filename)
os.remove(workspace_filename)
if ok then
local root = get_unlocked_root(core.root_view.root_node)
local active_view = load_node(root, t)
if active_view then
core.set_active_view(active_view)
end
end
end
local run = core.run
function core.run(...)
if #core.docs == 0 then
core.try(load_workspace)
local exit = os.exit
function os.exit(...)
save_workspace()
exit(...)
end
end
core.run = run
return core.run(...)
end
|
