summaryrefslogtreecommitdiff
path: root/framework/source/xml/acceleratorconfigurationreader.cxx
blob: 6bfe69a8c7eccacb3290e58c7e924de971bd0401 (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
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <xml/acceleratorconfigurationreader.hxx>

#include <acceleratorconst.h>

#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
#include <com/sun/star/awt/KeyModifier.hpp>
#include <com/sun/star/awt/KeyEvent.hpp>
#include <com/sun/star/awt/Key.hpp>
#include <com/sun/star/container/ElementExistException.hpp>

#include <vcl/svapp.hxx>
#include <rtl/ustrbuf.hxx>

namespace framework{

/* Throws a SaxException in case a wrong formated XML
   structure was detected.

   This macro combined the given comment with a generic
   way to find out the XML line (where the error occurred)
   to format a suitable message.

   @param   COMMENT
            an ascii string, which describe the problem.
 */
#define THROW_PARSEEXCEPTION(COMMENT)                                   \
    {                                                                   \
        OUStringBuffer sMessage(256);                            \
        sMessage.append     (implts_getErrorLineString());              \
        sMessage.appendAscii(COMMENT                    );              \
                                                                        \
        throw css::xml::sax::SAXException(                              \
                sMessage.makeStringAndClear(),                          \
                static_cast< css::xml::sax::XDocumentHandler* >(this),  \
                css::uno::Any());                                       \
    }

AcceleratorConfigurationReader::AcceleratorConfigurationReader(AcceleratorCache& rContainer)
    : m_rContainer            (rContainer                   )
    , m_bInsideAcceleratorList(false                    )
    , m_bInsideAcceleratorItem(false                    )
{
}

AcceleratorConfigurationReader::~AcceleratorConfigurationReader()
{
}

void SAL_CALL AcceleratorConfigurationReader::startDocument()
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
}

void SAL_CALL AcceleratorConfigurationReader::endDocument()
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
    // The xml file seems to be corrupted.
    // Because we found no end-tags ... at least for
    // one list or item.
    if (
        (m_bInsideAcceleratorList) ||
        (m_bInsideAcceleratorItem)
       )
    {
        THROW_PARSEEXCEPTION("No matching start or end element 'acceleratorlist' found!")
    }
}

void SAL_CALL AcceleratorConfigurationReader::startElement(const OUString&                                      sElement      ,
                                                           const css::uno::Reference< css::xml::sax::XAttributeList >& xAttributeList)
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
    EXMLElement eElement = AcceleratorConfigurationReader::implst_classifyElement(sElement);

    // Note: We handle "accel:item" before "accel:acceleratorlist" to perform this operation.
    // Because an item occurs very often ... a list should occur one times only!
    if (eElement == E_ELEMENT_ITEM)
    {
        if (!m_bInsideAcceleratorList)
            THROW_PARSEEXCEPTION("An element \"accel:item\" must be embeded into 'accel:acceleratorlist'.")
        if (m_bInsideAcceleratorItem)
            THROW_PARSEEXCEPTION("An element \"accel:item\" is not a container.")
        m_bInsideAcceleratorItem = true;

        OUString    sCommand;
        css::awt::KeyEvent aEvent;

        sal_Int16 c = xAttributeList->getLength();
        sal_Int16 i = 0;
        for (i=0; i<c; ++i)
        {
            OUString sAttribute = xAttributeList->getNameByIndex(i);
            OUString sValue     = xAttributeList->getValueByIndex(i);
            EXMLAttribute   eAttribute = AcceleratorConfigurationReader::implst_classifyAttribute(sAttribute);
            switch(eAttribute)
            {
                case E_ATTRIBUTE_URL :
                    sCommand = sValue.intern();
                    break;

                case E_ATTRIBUTE_KEYCODE :
                    aEvent.KeyCode = m_rKeyMapping->mapIdentifierToCode(sValue);
                    break;

                case E_ATTRIBUTE_MOD_SHIFT :
                    aEvent.Modifiers |= css::awt::KeyModifier::SHIFT;
                    break;

                case E_ATTRIBUTE_MOD_MOD1  :
                    aEvent.Modifiers |= css::awt::KeyModifier::MOD1;
                    break;

                case E_ATTRIBUTE_MOD_MOD2  :
                    aEvent.Modifiers |= css::awt::KeyModifier::MOD2;
                    break;

                case E_ATTRIBUTE_MOD_MOD3  :
                    aEvent.Modifiers |= css::awt::KeyModifier::MOD3;
            }
        }

        // validate command and key event.
        if (
            sCommand.isEmpty() ||
            (aEvent.KeyCode == 0  )
           )
        {
            THROW_PARSEEXCEPTION("XML element does not describe a valid accelerator nor a valid command.")
        }

        // register key event + command inside cache ...
        // Check for already existing items there.
        if (!m_rContainer.hasKey(aEvent))
            m_rContainer.setKeyCommandPair(aEvent, sCommand);
        else
        {
            // Attention: Its not really a reason to throw an exception and kill the office, if the configuration contains
            // multiple registrations for the same key :-) Show a warning ... and ignore the second item.
            // THROW_PARSEEXCEPTION("Command is registered for the same key more then once.")
            SAL_INFO("fwk",
                     "AcceleratorConfigurationReader::startElement(): Double registration detected. Command=\"" <<
                     sCommand <<
                     "\" KeyCode=" <<
                     aEvent.KeyCode <<
                     "Modifiers=" <<
                     aEvent.Modifiers);
        }
    }

    if (eElement == E_ELEMENT_ACCELERATORLIST)
    {
        if (m_bInsideAcceleratorList)
            THROW_PARSEEXCEPTION("An element \"accel:acceleratorlist\" cannot be used recursive.")
        m_bInsideAcceleratorList = true;
        return;
    }
}

void SAL_CALL AcceleratorConfigurationReader::endElement(const OUString& sElement)
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
    EXMLElement eElement = AcceleratorConfigurationReader::implst_classifyElement(sElement);

    // Note: We handle "accel:item" before "accel:acceleratorlist" to perform this operation.
    // Because an item occurs very often ... a list should occur one times only!
    if (eElement == E_ELEMENT_ITEM)
    {
        if (!m_bInsideAcceleratorItem)
            THROW_PARSEEXCEPTION("Found end element 'accel:item', but no start element.")
        m_bInsideAcceleratorItem = false;
    }

    if (eElement == E_ELEMENT_ACCELERATORLIST)
    {
        if (!m_bInsideAcceleratorList)
            THROW_PARSEEXCEPTION("Found end element 'accel:acceleratorlist', but no start element.")
        m_bInsideAcceleratorList = false;
    }
}

void SAL_CALL AcceleratorConfigurationReader::characters(const OUString&)
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
}

void SAL_CALL AcceleratorConfigurationReader::ignorableWhitespace(const OUString&)
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
}

void SAL_CALL AcceleratorConfigurationReader::processingInstruction(const OUString& /*sTarget*/,
                                                                    const OUString& /*sData*/  )
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
}

void SAL_CALL AcceleratorConfigurationReader::setDocumentLocator(const css::uno::Reference< css::xml::sax::XLocator >& xLocator)
    throw(css::xml::sax::SAXException,
          css::uno::RuntimeException, std::exception )
{
    m_xLocator = xLocator;
}

AcceleratorConfigurationReader::EXMLElement AcceleratorConfigurationReader::implst_classifyElement(const OUString& sElement)
{
    AcceleratorConfigurationReader::EXMLElement eElement;

    if (sElement.equals(NS_ELEMENT_ACCELERATORLIST))
        eElement = E_ELEMENT_ACCELERATORLIST;
    else if (sElement.equals(NS_ELEMENT_ITEM))
        eElement = E_ELEMENT_ITEM;
    else
        throw css::uno::RuntimeException(
                "Unknown XML element detected!",
                css::uno::Reference< css::xml::sax::XDocumentHandler >());

    return eElement;
}

AcceleratorConfigurationReader::EXMLAttribute AcceleratorConfigurationReader::implst_classifyAttribute(const OUString& sAttribute)
{
    AcceleratorConfigurationReader::EXMLAttribute eAttribute;

    if (sAttribute.equals(NS_ATTRIBUTE_KEYCODE))
        eAttribute = E_ATTRIBUTE_KEYCODE;
    else if (sAttribute.equals(NS_ATTRIBUTE_MOD_SHIFT))
        eAttribute = E_ATTRIBUTE_MOD_SHIFT;
    else if (sAttribute.equals(NS_ATTRIBUTE_MOD_MOD1))
        eAttribute = E_ATTRIBUTE_MOD_MOD1;
    else if (sAttribute.equals(NS_ATTRIBUTE_MOD_MOD2))
        eAttribute = E_ATTRIBUTE_MOD_MOD2;
    else if (sAttribute.equals(NS_ATTRIBUTE_MOD_MOD3))
        eAttribute = E_ATTRIBUTE_MOD_MOD3;
    else if (sAttribute.equals(NS_ATTRIBUTE_URL))
        eAttribute = E_ATTRIBUTE_URL;
    else
        throw css::uno::RuntimeException(
                "Unknown XML attribute detected!",
                css::uno::Reference< css::xml::sax::XDocumentHandler >());

    return eAttribute;
}

OUString AcceleratorConfigurationReader::implts_getErrorLineString()
{
    if (!m_xLocator.is())
        return OUString("Error during parsing XML. (No further info available ...)");

    OUStringBuffer sMsg(256);
    sMsg.appendAscii("Error during parsing XML in\nline = ");
    sMsg.append     (m_xLocator->getLineNumber()           );
    sMsg.appendAscii("\ncolumn = "                         );
    sMsg.append     (m_xLocator->getColumnNumber()         );
    sMsg.appendAscii("."                                   );
    return sMsg.makeStringAndClear();
}

} // namespace framework

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */