1/*
2 * Copyright (C) 2007 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2010 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "RemoveFormatCommand.h"
29
30#include "ApplyStyleCommand.h"
31#include "CSSValueKeywords.h"
32#include "EditingStyle.h"
33#include "Element.h"
34#include "Frame.h"
35#include "FrameSelection.h"
36#include "HTMLNames.h"
37#include "StylePropertySet.h"
38
39namespace WebCore {
40
41using namespace HTMLNames;
42
43RemoveFormatCommand::RemoveFormatCommand(Document* document)
44    : CompositeEditCommand(document)
45{
46}
47
48static bool isElementForRemoveFormatCommand(const Element* element)
49{
50    DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, elements, ());
51    if (elements.isEmpty()) {
52        elements.add(acronymTag);
53        elements.add(bTag);
54        elements.add(bdoTag);
55        elements.add(bigTag);
56        elements.add(citeTag);
57        elements.add(codeTag);
58        elements.add(dfnTag);
59        elements.add(emTag);
60        elements.add(fontTag);
61        elements.add(iTag);
62        elements.add(insTag);
63        elements.add(kbdTag);
64        elements.add(nobrTag);
65        elements.add(qTag);
66        elements.add(sTag);
67        elements.add(sampTag);
68        elements.add(smallTag);
69        elements.add(strikeTag);
70        elements.add(strongTag);
71        elements.add(subTag);
72        elements.add(supTag);
73        elements.add(ttTag);
74        elements.add(uTag);
75        elements.add(varTag);
76    }
77    return elements.contains(element->tagQName());
78}
79
80void RemoveFormatCommand::doApply()
81{
82    Frame* frame = document()->frame();
83
84    if (!frame->selection()->selection().isNonOrphanedCaretOrRange())
85        return;
86
87    // Get the default style for this editable root, it's the style that we'll give the
88    // content that we're operating on.
89    Node* root = frame->selection()->rootEditableElement();
90    RefPtr<EditingStyle> defaultStyle = EditingStyle::create(root);
91
92    // We want to remove everything but transparent background.
93    // FIXME: We shouldn't access style().
94    defaultStyle->style()->setProperty(CSSPropertyBackgroundColor, CSSValueTransparent);
95
96    applyCommandToComposite(ApplyStyleCommand::create(document(), defaultStyle.get(), isElementForRemoveFormatCommand, editingAction()));
97}
98
99}
100