-
Notifications
You must be signed in to change notification settings - Fork 2
/
Copy pathada_gui-gnoga-client_storage.adb
180 lines (153 loc) · 6.69 KB
/
ada_gui-gnoga-client_storage.adb
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
-- Ada_GUI implementation based on Gnoga. Adapted 2021
-- --
-- GNOGA - The GNU Omnificent GUI for Ada --
-- --
-- G N O G A . C L I E N T . S T O R A G E --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 2014 David Botton --
-- --
-- This library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 3, or (at your option) any --
-- later version. This library is distributed in the hope that it will be --
-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are --
-- granted additional permissions described in the GCC Runtime Library --
-- Exception, version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- For more information please go to http://www.gnoga.com --
------------------------------------------------------------------------------
with Ada_GUI.Gnoga.Server.Connection;
package body Ada_GUI.Gnoga.Client_Storage is
-- One local and one session storage is available across an entire
-- scheme://domain:port. Give that there is no point in supporting access
-- to non-Gnoga iFrames or Popups since if they are not form the same
-- scheme://domain:port the browser security would not allow access
-- anyways.
procedure Execute (Storage : in out Storage_Type'Class; Method : in String);
function Execute (Storage : Storage_Type'Class; Method : String)
return String;
-- Execute access to Storage on its Connection_ID
-------------
-- Execute --
-------------
procedure Execute (Storage : in out Storage_Type'Class; Method : in String)
is
Message_Script : constant String :=
Storage.Script_Accessor & "." & Method;
begin
if Storage.Connection_ID = Gnoga.No_Connection then
raise Program_Error with "Use of Storage without Connection";
end if;
Gnoga.Server.Connection.Execute_Script
(ID => Storage.Connection_ID,
Script => Message_Script);
end Execute;
function Execute (Storage : Storage_Type'Class; Method : String)
return String
is
Message_Script : constant String :=
Storage.Script_Accessor & "." & Method;
begin
if Storage.Connection_ID = Gnoga.No_Connection then
raise Program_Error with "Use of Storage without Connection";
end if;
return Gnoga.Server.Connection.Execute_Script
(ID => Storage.Connection_ID,
Script => Message_Script);
end Execute;
------------
-- Length --
------------
function Length (Storage : Storage_Type) return Natural is
begin
return Natural'Value (Execute (Storage, "length"));
end Length;
---------
-- Key --
---------
function Key (Storage : Storage_Type; Value : Positive) return String is
JS_Value : constant Natural := Value - 1;
begin
return Execute (Storage, "key(" & JS_Value'Img & ")");
end Key;
---------
-- Set --
---------
procedure Set (Storage : in out Storage_Type; Name, Value : String) is
begin
Execute (Storage, "setItem ('" & Escape_Quotes (Name) & "','" &
Escape_Quotes (Value) & "')");
end Set;
---------
-- Get --
---------
function Get (Storage : Storage_Type; Name : String) return String is
begin
return Execute (Storage, "getItem('" & Escape_Quotes (Name) & "')");
end Get;
---------------------
-- Script_Accessor --
---------------------
function Script_Accessor (Storage : Storage_Type) return String is
begin
raise Program_Error
with "Use Session_Storage_Type or Local_Storage_Type";
return "";
end Script_Accessor;
-------------------
-- Local_Storage --
-------------------
function Local_Storage
(Object : Gnoga.Gui.Base_Type'Class)
return Local_Storage_Type
is
begin
return Local_Storage_Type'(Connection_ID => Object.Connection_ID);
end Local_Storage;
---------------------
-- Script_Accessor --
---------------------
overriding
function Script_Accessor (Storage : Local_Storage_Type) return String is
pragma Unreferenced (Storage);
begin
return "localStorage";
end Script_Accessor;
---------------------
-- Session_Storage --
---------------------
function Session_Storage
(Object : Gnoga.Gui.Base_Type'Class)
return Session_Storage_Type
is
begin
return Session_Storage_Type'(Connection_ID => Object.Connection_ID);
end Session_Storage;
---------------------
-- Script_Accessor --
---------------------
overriding
function Script_Accessor (Storage : Session_Storage_Type) return String is
pragma Unreferenced (Storage);
begin
return "sessionStorage";
end Script_Accessor;
end Ada_GUI.Gnoga.Client_Storage;