summaryrefslogtreecommitdiff
path: root/riscos/theme_install.c
blob: 574a380d40c3cfef8f087ac7154cd0246ddc7d99 (plain)
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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
/*
 * Copyright 2005 James Bursa <bursa@users.sourceforge.net>
 *
 * This file is part of NetSurf, http://www.netsurf-browser.org/
 *
 * NetSurf 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; version 2 of the License.
 *
 * NetSurf 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.  If not, see <http://www.gnu.org/licenses/>.
 */

/** \file
 * Theme auto-installing.
 */

#include <assert.h>
#include <stdbool.h>
#include "oslib/osfile.h"
#include "content/content.h"
#include "content/hlcache.h"
#include "desktop/browser.h"
#include "riscos/dialog.h"
#include "riscos/gui.h"
#include "riscos/options.h"
#include "riscos/theme.h"
#include "riscos/wimp.h"
#include "riscos/wimp_event.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/url.h"
#include "utils/utils.h"


static hlcache_handle *theme_install_content = NULL;
static struct theme_descriptor theme_install_descriptor;
wimp_w dialog_theme_install;


static void theme_install_close(wimp_w w);
static nserror theme_install_callback(hlcache_handle *handle,
		const hlcache_event *event, void *pw);
static bool theme_install_read(const char *source_data, 
		unsigned long source_size);


/**
 * Handle a CONTENT_THEME that has started loading.
 */

void theme_install_start(hlcache_handle *c)
{
	assert(c != NULL);
	assert(content_get_type(c) == CONTENT_THEME);

	if (ro_gui_dialog_open_top(dialog_theme_install, NULL, 0, 0)) {
		warn_user("ThemeInstActive", 0);
		return;
	}

	/* stop theme sitting in memory cache */
	content_invalidate_reuse_data(c);

	hlcache_handle_replace_callback(c, theme_install_callback, NULL);

	ro_gui_set_icon_string(dialog_theme_install, ICON_THEME_INSTALL_MESSAGE,
			messages_get("ThemeInstDown"), true);
	ro_gui_set_icon_shaded_state(dialog_theme_install,
			ICON_THEME_INSTALL_INSTALL, true);
	ro_gui_wimp_event_register_close_window(dialog_theme_install,
			theme_install_close);
}


/**
 * Callback for fetchcache() for theme install fetches.
 */

nserror theme_install_callback(hlcache_handle *handle,
		const hlcache_event *event, void *pw)
{
	char buffer[256];
	int author_indent = 0;

	switch (event->type) {
	case CONTENT_MSG_READY:
		break;

	case CONTENT_MSG_DONE:
	{
		const char *source_data;
		unsigned long source_size;

		theme_install_content = handle;

		source_data = content_get_source_data(handle, &source_size);

		if (!theme_install_read(source_data, source_size)) {
			warn_user("ThemeInvalid", 0);
			theme_install_close(dialog_theme_install);
			break;
		}

		/* remove '� ' from the start of the data */
		if (theme_install_descriptor.author[0] == '�')
			author_indent++;
		while (theme_install_descriptor.author[author_indent] == ' ')
			author_indent++;
		snprintf(buffer, sizeof buffer, messages_get("ThemeInstall"),
				theme_install_descriptor.name,
				&theme_install_descriptor.author[author_indent]);
		buffer[sizeof buffer - 1] = '\0';
		ro_gui_set_icon_string(dialog_theme_install,
				ICON_THEME_INSTALL_MESSAGE,
				buffer, true);
		ro_gui_set_icon_shaded_state(dialog_theme_install,
				ICON_THEME_INSTALL_INSTALL, false);
	}
		break;

	case CONTENT_MSG_ERROR:
		theme_install_close(dialog_theme_install);
		warn_user(event->data.error, 0);
		break;

	case CONTENT_MSG_STATUS:
		break;

	default:
		assert(0);
		break;
	}

	return NSERROR_OK;
}


/**
 * Fill in theme_install_descriptor from received theme data.
 *
 * \param  source_data  received data
 * \param  source_size  size of data
 * \return  true if data is a correct theme, false on error
 *
 * If the data is a correct theme, theme_install_descriptor is filled in.
 */

bool theme_install_read(const char *source_data, unsigned long source_size)
{
	const void *data = source_data;

	if (source_size < sizeof(struct theme_file_header))
		return false;
	if (!ro_gui_theme_read_file_header(&theme_install_descriptor,
			(struct theme_file_header *) data))
		return false;
	if (source_size - sizeof(struct theme_file_header) !=
			theme_install_descriptor.compressed_size)
		return false;
	return true;
}


/**
 * Install the downloaded theme.
 *
 * \param  w	the theme install window handle
 */

bool ro_gui_theme_install_apply(wimp_w w)
{
	char theme_save[256];
	char *theme_file;
	struct theme_descriptor *theme_install;
	os_error *error;
	char *fix;
	const char *source_data;
	unsigned long source_size;

	assert(theme_install_content);

	/* convert spaces to hard spaces */
	theme_file = strdup(theme_install_descriptor.name);
	if (!theme_file) {
	  	LOG(("malloc failed"));
	  	warn_user("NoMemory", 0);
		return false;
	}
	for (fix = theme_file; *fix != '\0'; fix++)
		if (*fix == ' ')
			*fix = 160;	/* hard space */

	/* simply overwrite previous theme versions */
	snprintf(theme_save, sizeof theme_save, "%s.%s",
			option_theme_save, theme_file);

	theme_save[sizeof theme_save - 1] = '\0';

	source_data = content_get_source_data(theme_install_content, 
			&source_size);

	error = xosfile_save_stamped(theme_save, 0xffd,
			(byte *) source_data,
			(byte *) source_data + source_size);
	if (error) {
		LOG(("xosfile_save_stamped: 0x%x: %s",
				error->errnum, error->errmess));
		warn_user("ThemeInstallErr", 0);
		free(theme_file);
		return false;
	}

	/* apply the new theme */
	ro_gui_theme_get_available();
	theme_install = ro_gui_theme_find(theme_file);
	if (!theme_install || !ro_gui_theme_apply(theme_install)) {
		warn_user("ThemeApplyErr", 0);
	} else {
		free(option_theme);
		option_theme = strdup(theme_install->leafname);
	}
	free(theme_file);
	ro_gui_save_options();
	return true;
}


/**
 * Close the theme installer and free resources.
 */

void theme_install_close(wimp_w w)
{
	if (theme_install_content)
		hlcache_handle_release(theme_install_content);

	theme_install_content = NULL;
}