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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* Nautilus
*
* Copyright (C) 2000 Eazel, Inc.
*
* Nautilus is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* Nautilus 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. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; see the file COPYING. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Maciej Stachowiak <mjs@eazel.com>
*/
/* nautilus-adapter-load-strategy.h
*/
#include <config.h>
#include "nautilus-adapter-load-strategy.h"
#include "nautilus-adapter-stream-load-strategy.h"
#include "nautilus-adapter-file-load-strategy.h"
#include "nautilus-adapter-progressive-load-strategy.h"
#include <gtk/gtkobject.h>
#include <eel/eel-gtk-macros.h>
#include <eel/eel-gtk-extensions.h>
enum {
REPORT_LOAD_UNDERWAY,
REPORT_LOAD_PROGRESS,
REPORT_LOAD_COMPLETE,
REPORT_LOAD_FAILED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
static void nautilus_adapter_load_strategy_class_init (NautilusAdapterLoadStrategyClass *klass);
static void nautilus_adapter_load_strategy_init (NautilusAdapterLoadStrategy *strategy);
static void nautilus_adapter_load_strategy_destroy (GtkObject *object);
EEL_DEFINE_CLASS_BOILERPLATE (NautilusAdapterLoadStrategy, nautilus_adapter_load_strategy, GTK_TYPE_OBJECT)
EEL_IMPLEMENT_MUST_OVERRIDE_SIGNAL (nautilus_adapter_load_strategy, load_location)
EEL_IMPLEMENT_MUST_OVERRIDE_SIGNAL (nautilus_adapter_load_strategy, stop_loading)
static void
nautilus_adapter_load_strategy_class_init (NautilusAdapterLoadStrategyClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) klass;
object_class->destroy = nautilus_adapter_load_strategy_destroy;
EEL_ASSIGN_MUST_OVERRIDE_SIGNAL (klass, nautilus_adapter_load_strategy, load_location);
EEL_ASSIGN_MUST_OVERRIDE_SIGNAL (klass, nautilus_adapter_load_strategy, stop_loading);
signals[REPORT_LOAD_UNDERWAY] =
g_signal_new ("report_load_underway",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (NautilusAdapterLoadStrategyClass, report_load_underway),
NULL, NULL,
gtk_marshal_NONE__NONE,
G_TYPE_NONE, 0);
signals[REPORT_LOAD_PROGRESS] =
g_signal_new ("report_load_progress",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (NautilusAdapterLoadStrategyClass, report_load_progress),
NULL, NULL,
eel_gtk_marshal_NONE__DOUBLE,
G_TYPE_NONE, 1, GTK_TYPE_DOUBLE);
signals[REPORT_LOAD_COMPLETE] =
g_signal_new ("report_load_complete",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (NautilusAdapterLoadStrategyClass, report_load_complete),
NULL, NULL,
gtk_marshal_NONE__NONE,
G_TYPE_NONE, 0);
signals[REPORT_LOAD_FAILED] =
g_signal_new ("report_load_failed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (NautilusAdapterLoadStrategyClass, report_load_failed),
NULL, NULL,
gtk_marshal_NONE__NONE,
G_TYPE_NONE, 0);
}
static void
nautilus_adapter_load_strategy_init (NautilusAdapterLoadStrategy *strategy)
{
}
static void
nautilus_adapter_load_strategy_destroy (GtkObject *object)
{
NautilusAdapterLoadStrategy *strategy;
strategy = NAUTILUS_ADAPTER_LOAD_STRATEGY (object);
EEL_CALL_PARENT (GTK_OBJECT_CLASS, destroy, (object));
}
NautilusAdapterLoadStrategy *
nautilus_adapter_load_strategy_get (Bonobo_Unknown component)
{
Bonobo_PersistStream persist_stream;
Bonobo_PersistFile persist_file;
Bonobo_ProgressiveDataSink progressive_data_sink;
CORBA_Environment ev;
CORBA_exception_init (&ev);
progressive_data_sink = Bonobo_Unknown_queryInterface (component,
"IDL:Bonobo/ProgressiveDataSink:1.0", &ev);
if (ev._major == CORBA_NO_EXCEPTION && !CORBA_Object_is_nil (progressive_data_sink, &ev)) {
CORBA_exception_free (&ev);
return nautilus_adapter_progressive_load_strategy_new (progressive_data_sink);
}
persist_stream = Bonobo_Unknown_queryInterface (component,
"IDL:Bonobo/PersistStream:1.0", &ev);
if (ev._major == CORBA_NO_EXCEPTION && !CORBA_Object_is_nil (persist_stream, &ev)) {
CORBA_exception_free (&ev);
return nautilus_adapter_stream_load_strategy_new (persist_stream);
}
persist_file = Bonobo_Unknown_queryInterface (component,
"IDL:Bonobo/PersistFile:1.0", &ev);
if (ev._major == CORBA_NO_EXCEPTION && !CORBA_Object_is_nil (persist_file, &ev)) {
CORBA_exception_free (&ev);
return nautilus_adapter_file_load_strategy_new (persist_file);
}
CORBA_exception_free (&ev);
return NULL;
}
void
nautilus_adapter_load_strategy_load_location (NautilusAdapterLoadStrategy *strategy,
const char *uri)
{
g_return_if_fail (NAUTILUS_IS_ADAPTER_LOAD_STRATEGY (strategy));
EEL_CALL_METHOD (NAUTILUS_ADAPTER_LOAD_STRATEGY_CLASS, strategy,
load_location, (strategy, uri));
}
void
nautilus_adapter_load_strategy_stop_loading (NautilusAdapterLoadStrategy *strategy)
{
g_return_if_fail (NAUTILUS_IS_ADAPTER_LOAD_STRATEGY (strategy));
EEL_CALL_METHOD (NAUTILUS_ADAPTER_LOAD_STRATEGY_CLASS, strategy,
stop_loading, (strategy));
}
/* "protected" calls, should only be called by subclasses */
void
nautilus_adapter_load_strategy_report_load_underway (NautilusAdapterLoadStrategy *strategy)
{
gtk_signal_emit (GTK_OBJECT (strategy),
signals[REPORT_LOAD_UNDERWAY]);
}
void
nautilus_adapter_load_strategy_report_load_progress (NautilusAdapterLoadStrategy *strategy,
double fraction_done)
{
gtk_signal_emit (GTK_OBJECT (strategy),
signals[REPORT_LOAD_PROGRESS],
fraction_done);
}
void
nautilus_adapter_load_strategy_report_load_complete (NautilusAdapterLoadStrategy *strategy)
{
gtk_signal_emit (GTK_OBJECT (strategy),
signals[REPORT_LOAD_COMPLETE]);
}
void
nautilus_adapter_load_strategy_report_load_failed (NautilusAdapterLoadStrategy *strategy)
{
gtk_signal_emit (GTK_OBJECT (strategy),
signals[REPORT_LOAD_FAILED]);
}
|