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
|
/**
* @file lluilistener.cpp
* @author Nat Goodspeed
* @date 2009-08-18
* @brief Implementation for lluilistener.
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* 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. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
// Precompiled header
#include "llviewerprecompiledheaders.h"
// associated header
#include "lluilistener.h"
// STL headers
// std headers
// external library headers
// other Linden headers
#include "llviewerwindow.h" // to get root view
#include "lluictrl.h"
#include "llerror.h"
LLUIListener::LLUIListener():
LLEventAPI("UI",
"LLUICtrl::CommitCallbackRegistry listener.\n"
"Capable of invoking any function (with parameter) you can specify in XUI.")
{
add("call",
"Invoke the operation named by [\"function\"], passing [\"parameter\"],\n"
"as if from a user gesture on a menu -- or a button click.",
&LLUIListener::call,
LLSD().with("function", LLSD()));
add("getValue",
"For the UI control identified by the path in [\"path\"], return the control's\n"
"current value as [\"value\"] reply.",
&LLUIListener::getValue,
LLSD().with("path", LLSD()));
}
void LLUIListener::call(const LLSD& event) const
{
LLUICtrl::commit_callback_t* func =
LLUICtrl::CommitCallbackRegistry::getValue(event["function"]);
if (! func)
{
// This API is intended for use by a script. It's a fire-and-forget
// API: we provide no reply. Therefore, a typo in the script will
// provide no feedback whatsoever to that script. To rub the coder's
// nose in such an error, crump rather than quietly ignoring it.
LL_ERRS("LLUIListener") << "function '" << event["function"] << "' not found" << LL_ENDL;
}
else
{
// Interestingly, view_listener_t::addMenu() (addCommit(),
// addEnable()) constructs a commit_callback_t callable that accepts
// two parameters but discards the first. Only the second is passed to
// handleEvent(). Therefore we feel completely safe passing NULL for
// the first parameter.
(*func)(NULL, event["parameter"]);
}
}
const LLView* resolve_path(const LLView* context, const std::string path)
{
std::vector<std::string> parts;
const std::string delims("/");
LLStringUtilBase<char>::getTokens(path, parts, delims);
bool recurse = false;
for (std::vector<std::string>::iterator it = parts.begin();
it != parts.end() && context; it++)
{
std::string part = *it;
if (part.length() == 0)
{
// Allow "foo//bar" meaning "descendant named bar"
recurse = true;
}
else
{
const LLView* found = context->findChildView(part, recurse);
if (!found)
{
return NULL;
}
else
{
context = found;
}
recurse = false;
}
}
return NULL;
}
void LLUIListener::getValue(const LLSD&event) const
{
LLSD reply;
const LLView* root = (LLView*)(gViewerWindow->getRootView());
const LLView* view = resolve_path(root, event["path"].asString());
const LLUICtrl* ctrl(dynamic_cast<const LLUICtrl*>(view));
if (ctrl)
{
reply["value"] = ctrl->getValue();
}
else
{
// *TODO: ??? return something indicating failure to resolve
}
sendReply(reply, event, "reply");
}
|
