OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights | 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights |
4 * reserved. | 4 * reserved. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
(...skipping 14 matching lines...) Expand all Loading... |
25 #include "core/editing/EditingUtilities.h" | 25 #include "core/editing/EditingUtilities.h" |
26 #include "core/editing/FrameSelection.h" | 26 #include "core/editing/FrameSelection.h" |
27 #include "core/editing/VisiblePosition.h" | 27 #include "core/editing/VisiblePosition.h" |
28 #include "core/editing/VisibleUnits.h" | 28 #include "core/editing/VisibleUnits.h" |
29 #include "core/html/TextControlElement.h" | 29 #include "core/html/TextControlElement.h" |
30 #include "core/layout/LayoutView.h" | 30 #include "core/layout/LayoutView.h" |
31 | 31 |
32 namespace blink { | 32 namespace blink { |
33 | 33 |
34 LayoutSelection::LayoutSelection(FrameSelection& frame_selection) | 34 LayoutSelection::LayoutSelection(FrameSelection& frame_selection) |
35 : frame_selection_(&frame_selection), has_pending_selection_(false) {} | 35 : frame_selection_(&frame_selection), |
| 36 has_pending_selection_(false), |
| 37 selection_start_(nullptr), |
| 38 selection_end_(nullptr), |
| 39 selection_start_pos_(-1), |
| 40 selection_end_pos_(-1) {} |
36 | 41 |
37 const VisibleSelection& LayoutSelection::GetVisibleSelection() const { | 42 const VisibleSelection& LayoutSelection::GetVisibleSelection() const { |
38 return frame_selection_->ComputeVisibleSelectionInDOMTree(); | 43 return frame_selection_->ComputeVisibleSelectionInDOMTree(); |
39 } | 44 } |
40 | 45 |
41 static bool IsSelectionInDocument( | 46 static bool IsSelectionInDocument( |
42 const VisibleSelectionInFlatTree& visible_selection, | 47 const VisibleSelectionInFlatTree& visible_selection, |
43 const Document& document) { | 48 const Document& document) { |
44 const PositionInFlatTree& start = visible_selection.Start(); | 49 const PositionInFlatTree& start = visible_selection.Start(); |
45 if (start.IsNotNull() && | 50 if (start.IsNotNull() && |
(...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
120 return; | 125 return; |
121 | 126 |
122 // Construct a new VisibleSolution, since visibleSelection() is not | 127 // Construct a new VisibleSolution, since visibleSelection() is not |
123 // necessarily valid, and the following steps assume a valid selection. See | 128 // necessarily valid, and the following steps assume a valid selection. See |
124 // <https://bugs.webkit.org/show_bug.cgi?id=69563> and | 129 // <https://bugs.webkit.org/show_bug.cgi?id=69563> and |
125 // <rdar://problem/10232866>. | 130 // <rdar://problem/10232866>. |
126 const VisibleSelectionInFlatTree& selection = | 131 const VisibleSelectionInFlatTree& selection = |
127 CreateVisibleSelection(CalcVisibleSelection(original_selection)); | 132 CreateVisibleSelection(CalcVisibleSelection(original_selection)); |
128 | 133 |
129 if (!selection.IsRange()) { | 134 if (!selection.IsRange()) { |
130 layout_view.ClearSelection(); | 135 ClearSelection(); |
131 return; | 136 return; |
132 } | 137 } |
133 | 138 |
134 // Use the rightmost candidate for the start of the selection, and the | 139 // Use the rightmost candidate for the start of the selection, and the |
135 // leftmost candidate for the end of the selection. Example: foo <a>bar</a>. | 140 // leftmost candidate for the end of the selection. Example: foo <a>bar</a>. |
136 // Imagine that a line wrap occurs after 'foo', and that 'bar' is selected. | 141 // Imagine that a line wrap occurs after 'foo', and that 'bar' is selected. |
137 // If we pass [foo, 3] as the start of the selection, the selection painting | 142 // If we pass [foo, 3] as the start of the selection, the selection painting |
138 // code will think that content on the line containing 'foo' is selected | 143 // code will think that content on the line containing 'foo' is selected |
139 // and will fill the gap before 'bar'. | 144 // and will fill the gap before 'bar'. |
140 PositionInFlatTree start_pos = selection.Start(); | 145 PositionInFlatTree start_pos = selection.Start(); |
(...skipping 11 matching lines...) Expand all Loading... |
152 if (start_pos.IsNull() || end_pos.IsNull() || | 157 if (start_pos.IsNull() || end_pos.IsNull() || |
153 selection.VisibleStart().DeepEquivalent() == | 158 selection.VisibleStart().DeepEquivalent() == |
154 selection.VisibleEnd().DeepEquivalent()) | 159 selection.VisibleEnd().DeepEquivalent()) |
155 return; | 160 return; |
156 LayoutObject* start_layout_object = start_pos.AnchorNode()->GetLayoutObject(); | 161 LayoutObject* start_layout_object = start_pos.AnchorNode()->GetLayoutObject(); |
157 LayoutObject* end_layout_object = end_pos.AnchorNode()->GetLayoutObject(); | 162 LayoutObject* end_layout_object = end_pos.AnchorNode()->GetLayoutObject(); |
158 if (!start_layout_object || !end_layout_object) | 163 if (!start_layout_object || !end_layout_object) |
159 return; | 164 return; |
160 DCHECK(layout_view == start_layout_object->View()); | 165 DCHECK(layout_view == start_layout_object->View()); |
161 DCHECK(layout_view == end_layout_object->View()); | 166 DCHECK(layout_view == end_layout_object->View()); |
162 layout_view.SetSelection(start_layout_object, | 167 SetSelection(start_layout_object, start_pos.ComputeEditingOffset(), |
163 start_pos.ComputeEditingOffset(), end_layout_object, | 168 end_layout_object, end_pos.ComputeEditingOffset()); |
164 end_pos.ComputeEditingOffset()); | 169 } |
| 170 |
| 171 void LayoutSelection::OnDocumentShutdown() { |
| 172 has_pending_selection_ = false; |
| 173 selection_start_ = nullptr; |
| 174 selection_end_ = nullptr; |
| 175 selection_start_pos_ = -1; |
| 176 selection_end_pos_ = -1; |
165 } | 177 } |
166 | 178 |
167 DEFINE_TRACE(LayoutSelection) { | 179 DEFINE_TRACE(LayoutSelection) { |
168 visitor->Trace(frame_selection_); | 180 visitor->Trace(frame_selection_); |
169 } | 181 } |
170 | 182 |
171 } // namespace blink | 183 } // namespace blink |
OLD | NEW |