1 /*

     2  * Copyright (C) 2007 Apple Computer, Inc.  All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

    24  */

    25 

    26 #include "config.h"

    27 #include "RemoveFormatCommand.h"

    28 

    29 #include "CSSComputedStyleDeclaration.h"

    30 #include "CSSMutableStyleDeclaration.h"

    31 #include "Editor.h"

    32 #include "Frame.h"

    33 #include "HTMLNames.h"

    34 #include "VisibleSelection.h"

    35 #include "SelectionController.h"

    36 #include "TextIterator.h"

    37 #include "TypingCommand.h"

    38 #include "ApplyStyleCommand.h"

    39 

    40 namespace WebCore {

    41 

    42 using namespace HTMLNames;

    43 

    44 RemoveFormatCommand::RemoveFormatCommand(Document* document)

    45     : CompositeEditCommand(document)

    46 {

    47 }

    48 

    49 void RemoveFormatCommand::doApply()

    50 {

    51     Frame* frame = document()->frame();

    52     

    53     // Make a plain text string from the selection to remove formatting like tables and lists.

    54     String string = plainText(frame->selection()->selection().toNormalizedRange().get());

    55 

    56     // Get the default style for this editable root, it's the style that we'll give the

    57     // content that we're operating on.

    58     Node* root = frame->selection()->rootEditableElement();

    59     RefPtr<CSSMutableStyleDeclaration> defaultStyle = ApplyStyleCommand::editingStyleAtPosition(Position(root, 0));

    60 

    61     // Delete the selected content.

    62     // FIXME: We should be able to leave this to insertText, but its delete operation

    63     // doesn't preserve the style we're about to set.

    64     deleteSelection();

    65     

    66     // Delete doesn't remove fully selected lists.

    67     while (breakOutOfEmptyListItem())

    68         ;

    69     

    70     // If the selection was all formatting (like an empty list) the format-less text will 

    71     // be empty. Early return since we don't need to do any of the work that follows and

    72     // to avoid the ASSERT that fires if input(...) is called with an empty String.

    73     if (string.isEmpty())

    74         return;

    75     

    76     // Insert the content with the default style.

    77     // See <rdar://problem/5794382> RemoveFormat doesn't always reset text alignment

    78     frame->setTypingStyle(defaultStyle.get());

    79     

    80     inputText(string, true);

    81 }

    82 

    83 }