18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2005 Apple Computer, Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "DeleteSelectionCommand.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Document.h" 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "DocumentFragment.h" 314576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang#include "EditingBoundary.h" 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Editor.h" 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "EditorClient.h" 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Element.h" 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Frame.h" 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "htmlediting.h" 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "HTMLInputElement.h" 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "HTMLNames.h" 39635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#include "RenderTableCell.h" 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "Text.h" 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "visible_units.h" 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace HTMLNames; 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic bool isTableRow(const Node* node) 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return node && node->hasTagName(trTag); 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic bool isTableCellEmpty(Node* cell) 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(isTableCell(cell)); 552bde8e466a4451c7319e3a072d118917957d6554Steve Block return VisiblePosition(firstPositionInNode(cell)) == VisiblePosition(lastPositionInNode(cell)); 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic bool isTableRowEmpty(Node* row) 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!isTableRow(row)) 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project for (Node* child = row->firstChild(); child; child = child->nextSibling()) 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTableCell(child) && !isTableCellEmpty(child)) 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectDeleteSelectionCommand::DeleteSelectionCommand(Document *document, bool smartDelete, bool mergeBlocksAfterDelete, bool replace, bool expandForSpecialElements) 718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project : CompositeEditCommand(document), 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_hasSelectionToDelete(false), 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_smartDelete(smartDelete), 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_mergeBlocksAfterDelete(mergeBlocksAfterDelete), 752bde8e466a4451c7319e3a072d118917957d6554Steve Block m_needPlaceholder(false), 768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_replace(replace), 778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_expandForSpecialElements(expandForSpecialElements), 78635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project m_pruneStartBlockIfNecessary(false), 795f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_startsAtEmptyLine(false), 808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_startBlock(0), 818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endBlock(0), 828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_typingStyle(0), 838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_deleteIntoBlockquoteStyle(0) 848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 878f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianDeleteSelectionCommand::DeleteSelectionCommand(const VisibleSelection& selection, bool smartDelete, bool mergeBlocksAfterDelete, bool replace, bool expandForSpecialElements) 8881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch : CompositeEditCommand(selection.start().anchorNode()->document()), 898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_hasSelectionToDelete(true), 908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_smartDelete(smartDelete), 918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_mergeBlocksAfterDelete(mergeBlocksAfterDelete), 922bde8e466a4451c7319e3a072d118917957d6554Steve Block m_needPlaceholder(false), 938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_replace(replace), 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_expandForSpecialElements(expandForSpecialElements), 95635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project m_pruneStartBlockIfNecessary(false), 965f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_startsAtEmptyLine(false), 978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_selectionToDelete(selection), 988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_startBlock(0), 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endBlock(0), 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_typingStyle(0), 1018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_deleteIntoBlockquoteStyle(0) 1028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::initializeStartEnd(Position& start, Position& end) 1068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Node* startSpecialContainer = 0; 1088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Node* endSpecialContainer = 0; 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project start = m_selectionToDelete.start(); 1118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project end = m_selectionToDelete.end(); 1128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // For HRs, we'll get a position at (HR,1) when hitting delete from the beginning of the previous line, or (HR,0) when forward deleting, 1148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // but in these cases, we want to delete it, so manually expand the selection 11581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (start.deprecatedNode()->hasTagName(hrTag)) 11681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch start = positionBeforeNode(start.deprecatedNode()); 11781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch else if (end.deprecatedNode()->hasTagName(hrTag)) 11881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch end = positionAfterNode(end.deprecatedNode()); 1198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 120d0825bca7fe65beaee391d30da42e937db621564Steve Block // FIXME: This is only used so that moveParagraphs can avoid the bugs in special element expansion. 1218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_expandForSpecialElements) 1228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 1238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (1) { 1258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project startSpecialContainer = 0; 1268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project endSpecialContainer = 0; 1278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Position s = positionBeforeContainingSpecialElement(start, &startSpecialContainer); 1298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Position e = positionAfterContainingSpecialElement(end, &endSpecialContainer); 1308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!startSpecialContainer && !endSpecialContainer) 1328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 1338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (VisiblePosition(start) != m_selectionToDelete.visibleStart() || VisiblePosition(end) != m_selectionToDelete.visibleEnd()) 1358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 1365f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 137231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block // If we're going to expand to include the startSpecialContainer, it must be fully selected. 138231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (startSpecialContainer && !endSpecialContainer && comparePositions(positionInParentAfterNode(startSpecialContainer), end) > -1) 1398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 1408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1415f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // If we're going to expand to include the endSpecialContainer, it must be fully selected. 142231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block if (endSpecialContainer && !startSpecialContainer && comparePositions(start, positionInParentBeforeNode(endSpecialContainer)) > -1) 1438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project break; 144231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 1458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (startSpecialContainer && startSpecialContainer->isDescendantOf(endSpecialContainer)) 1468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't adjust the end yet, it is the end of a special element that contains the start 1478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // special element (which may or may not be fully selected). 1488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project start = s; 1498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else if (endSpecialContainer && endSpecialContainer->isDescendantOf(startSpecialContainer)) 1508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't adjust the start yet, it is the start of a special element that contains the end 1518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // special element (which may or may not be fully selected). 1528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project end = e; 1538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 1548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project start = s; 1558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project end = e; 1568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 160dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Blockvoid DeleteSelectionCommand::setStartingSelectionOnSmartDelete(const Position& start, const Position& end) 161dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block{ 162dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block VisiblePosition newBase; 163dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block VisiblePosition newExtent; 164dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block if (startingSelection().isBaseFirst()) { 165dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block newBase = start; 166dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block newExtent = end; 167dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } else { 168dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block newBase = end; 169dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block newExtent = start; 170dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block } 171dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block setStartingSelection(VisibleSelection(newBase, newExtent)); 172dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block} 173dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 1748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::initializePositionData() 1758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Position start, end; 1778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project initializeStartEnd(start, end); 1788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_upstreamStart = start.upstream(); 1808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_downstreamStart = start.downstream(); 1818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_upstreamEnd = end.upstream(); 1828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_downstreamEnd = end.downstream(); 1838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_startRoot = editableRootForPosition(start); 1858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endRoot = editableRootForPosition(end); 1868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_startTableRow = enclosingNodeOfType(start, &isTableRow); 1888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endTableRow = enclosingNodeOfType(end, &isTableRow); 1898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't move content out of a table cell. 1918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the cell is non-editable, enclosingNodeOfType won't return it by default, so 1928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // tell that function that we don't care if it returns non-editable nodes. 1932bde8e466a4451c7319e3a072d118917957d6554Steve Block Node* startCell = enclosingNodeOfType(m_upstreamStart, &isTableCell, CanCrossEditingBoundary); 1942bde8e466a4451c7319e3a072d118917957d6554Steve Block Node* endCell = enclosingNodeOfType(m_downstreamEnd, &isTableCell, CanCrossEditingBoundary); 1958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: This isn't right. A borderless table with two rows and a single column would appear as two paragraphs. 1968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (endCell && endCell != startCell) 1978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_mergeBlocksAfterDelete = false; 1988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Usually the start and the end of the selection to delete are pulled together as a result of the deletion. 2008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Sometimes they aren't (like when no merge is requested), so we must choose one position to hold the caret 2018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and receive the placeholder after deletion. 2028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project VisiblePosition visibleEnd(m_downstreamEnd); 2038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_mergeBlocksAfterDelete && !isEndOfParagraph(visibleEnd)) 2048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition = m_downstreamEnd; 2058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else 2068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition = m_downstreamStart; 207635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 208635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // We don't want to merge into a block if it will mean changing the quote level of content after deleting 209635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // selections that contain a whole number paragraphs plus a line break, since it is unclear to most users 210635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // that such a selection actually ends at the start of the next paragraph. This matches TextEdit behavior 211635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // for indented paragraphs. 2125f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Only apply this rule if the endingSelection is a range selection. If it is a caret, then other operations have created 2135f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // the selection we're deleting (like the process of creating a selection to delete during a backspace), and the user isn't in the situation described above. 2145f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (numEnclosingMailBlockquotes(start) != numEnclosingMailBlockquotes(end) 2155f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian && isStartOfParagraph(visibleEnd) && isStartOfParagraph(VisiblePosition(start)) 2165f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian && endingSelection().isRange()) { 217635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project m_mergeBlocksAfterDelete = false; 218635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project m_pruneStartBlockIfNecessary = true; 219635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 2208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Handle leading and trailing whitespace, as well as smart delete adjustments to the selection 2228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_leadingWhitespace = m_upstreamStart.leadingWhitespacePosition(m_selectionToDelete.affinity()); 2238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_trailingWhitespace = m_downstreamEnd.trailingWhitespacePosition(VP_DEFAULT_AFFINITY); 2248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_smartDelete) { 2268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // skip smart delete if the selection to delete already starts or ends with whitespace 2288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Position pos = VisiblePosition(m_upstreamStart, m_selectionToDelete.affinity()).deepEquivalent(); 2298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool skipSmartDelete = pos.trailingWhitespacePosition(VP_DEFAULT_AFFINITY, true).isNotNull(); 2308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!skipSmartDelete) 2318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project skipSmartDelete = m_downstreamEnd.leadingWhitespacePosition(VP_DEFAULT_AFFINITY, true).isNotNull(); 2328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // extend selection upstream if there is whitespace there 2348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool hasLeadingWhitespaceBeforeAdjustment = m_upstreamStart.leadingWhitespacePosition(m_selectionToDelete.affinity(), true).isNotNull(); 2358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!skipSmartDelete && hasLeadingWhitespaceBeforeAdjustment) { 2368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project VisiblePosition visiblePos = VisiblePosition(m_upstreamStart, VP_DEFAULT_AFFINITY).previous(); 2378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project pos = visiblePos.deepEquivalent(); 2388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Expand out one character upstream for smart delete and recalculate 2398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // positions based on this change. 2408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_upstreamStart = pos.upstream(); 2418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_downstreamStart = pos.downstream(); 2428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_leadingWhitespace = m_upstreamStart.leadingWhitespacePosition(visiblePos.affinity()); 243dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 244dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block setStartingSelectionOnSmartDelete(m_upstreamStart, m_upstreamEnd); 2458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // trailing whitespace is only considered for smart delete if there is no leading 2488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // whitespace, as in the case where you double-click the first word of a paragraph. 2498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!skipSmartDelete && !hasLeadingWhitespaceBeforeAdjustment && m_downstreamEnd.trailingWhitespacePosition(VP_DEFAULT_AFFINITY, true).isNotNull()) { 2508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Expand out one character downstream for smart delete and recalculate 2518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // positions based on this change. 2528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project pos = VisiblePosition(m_downstreamEnd, VP_DEFAULT_AFFINITY).next().deepEquivalent(); 2538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_upstreamEnd = pos.upstream(); 2548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_downstreamEnd = pos.downstream(); 2558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_trailingWhitespace = m_downstreamEnd.trailingWhitespacePosition(VP_DEFAULT_AFFINITY); 256dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block 257dcc8cf2e65d1aa555cce12431a16547e66b469eeSteve Block setStartingSelectionOnSmartDelete(m_downstreamStart, m_downstreamEnd); 2588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 2608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 261ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch // We must pass call parentAnchoredEquivalent on the positions since some editing positions 2628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // that appear inside their nodes aren't really inside them. [hr, 0] is one example. 263ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch // FIXME: parentAnchoredEquivalent should eventually be moved into enclosing element getters 2648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // like the one below, since editing functions should obviously accept editing positions. 2658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Passing false to enclosingNodeOfType tells it that it's OK to return a non-editable 2668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // node. This was done to match existing behavior, but it seems wrong. 2672bde8e466a4451c7319e3a072d118917957d6554Steve Block m_startBlock = enclosingNodeOfType(m_downstreamStart.parentAnchoredEquivalent(), &isBlock, CanCrossEditingBoundary); 2682bde8e466a4451c7319e3a072d118917957d6554Steve Block m_endBlock = enclosingNodeOfType(m_upstreamEnd.parentAnchoredEquivalent(), &isBlock, CanCrossEditingBoundary); 2698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::saveTypingStyleState() 2728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // A common case is deleting characters that are all from the same text node. In 2748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // that case, the style at the start of the selection before deletion will be the 2758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // same as the style at the start of the selection after deletion (since those 2768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // two positions will be identical). Therefore there is no need to save the 2778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // typing style at the start of the selection, nor is there a reason to 2788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // compute the style at the start of the selection after deletion (see the 2798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // early return in calculateTypingStyleAfterDelete). 28081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_upstreamStart.deprecatedNode() == m_downstreamEnd.deprecatedNode() && m_upstreamStart.deprecatedNode()->isTextNode()) 2818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 2820bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 2838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Figure out the typing style in effect before the delete is done. 2842daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch m_typingStyle = EditingStyle::create(m_selectionToDelete.start()); 28528040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu m_typingStyle->removeStyleAddedByNode(enclosingAnchorElement(m_selectionToDelete.start())); 2860bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 2878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we're deleting into a Mail blockquote, save the style at end() instead of start() 2888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We'll use this later in computeTypingStyleAfterDelete if we end up outside of a Mail blockquote 2892bde8e466a4451c7319e3a072d118917957d6554Steve Block if (enclosingNodeOfType(m_selectionToDelete.start(), isMailBlockquote)) 29028040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu m_deleteIntoBlockquoteStyle = EditingStyle::create(m_selectionToDelete.end()); 2910bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch else 2928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_deleteIntoBlockquoteStyle = 0; 2938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool DeleteSelectionCommand::handleSpecialCaseBRDelete() 2968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Check for special-case where the selection contains only a BR on a line by itself after another BR. 29881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool upstreamStartIsBR = m_upstreamStart.deprecatedNode()->hasTagName(brTag); 29981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool downstreamStartIsBR = m_downstreamStart.deprecatedNode()->hasTagName(brTag); 30081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool isBROnLineByItself = upstreamStartIsBR && downstreamStartIsBR && m_downstreamStart.deprecatedNode() == m_upstreamEnd.deprecatedNode(); 3018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isBROnLineByItself) { 30281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch removeNode(m_downstreamStart.deprecatedNode()); 3038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return true; 3048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Not a special-case delete per se, but we can detect that the merging of content between blocks 3078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // should not be done. 3088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (upstreamStartIsBR && downstreamStartIsBR) { 3095f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_startsAtEmptyLine = true; 3108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition = m_downstreamEnd; 3118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return false; 3148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 3158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic void updatePositionForNodeRemoval(Node* node, Position& position) 3178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (position.isNull()) 3198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 320ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch switch (position.anchorType()) { 321ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch case Position::PositionIsOffsetInAnchor: 322ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch if (position.containerNode() == node->parentNode() && static_cast<unsigned>(position.offsetInContainerNode()) > node->nodeIndex()) 323ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch position.moveToOffset(position.offsetInContainerNode() - 1); 324ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch else if (node->contains(position.containerNode())) 325ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch position = positionInParentBeforeNode(node); 326ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch break; 327ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch case Position::PositionIsAfterAnchor: 328ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch if (node->contains(position.anchorNode())) 329ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch position = positionInParentAfterNode(node); 330ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch break; 331ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch case Position::PositionIsBeforeAnchor: 332ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch if (node->contains(position.anchorNode())) 333ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch position = positionInParentBeforeNode(node); 334ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch break; 335ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch } 3368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 3378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3382daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdochstatic Position firstEditablePositionInNode(Node* node) 3392daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch{ 3402daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch ASSERT(node); 3412daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch Node* next = node; 3422daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch while (next && !next->rendererIsEditable()) 3432daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch next = next->traverseNextNode(node); 3442daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch return next ? firstPositionInOrBeforeNode(next) : Position(); 3452daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch} 3462daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch 347635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid DeleteSelectionCommand::removeNode(PassRefPtr<Node> node) 3488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 3498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!node) 3508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 3518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_startRoot != m_endRoot && !(node->isDescendantOf(m_startRoot.get()) && node->isDescendantOf(m_endRoot.get()))) { 3538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If a node is not in both the start and end editable roots, remove it only if its inside an editable region. 3542bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!node->parentNode()->rendererIsEditable()) { 3558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't remove non-editable atomic nodes. 3568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!node->firstChild()) 3578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 3588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Search this non-editable region for editable regions to empty. 3598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> child = node->firstChild(); 3608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (child) { 3618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> nextChild = child->nextSibling(); 3628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removeNode(child.get()); 3638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Bail if nextChild is no longer node's child. 3648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (nextChild && nextChild->parentNode() != node) 3658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 3668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = nextChild; 3678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't remove editable regions that are inside non-editable ones, just clear them. 3708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 3718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 374635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (isTableStructureNode(node.get()) || node == node->rootEditableElement()) { 3758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Do not remove an element of table structure; remove its contents. 3768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Likewise for the root editable element. 377635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project Node* child = node->firstChild(); 3788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (child) { 379635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project Node* remove = child; 3808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project child = child->nextSibling(); 3818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removeNode(remove); 3828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3842daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch // Make sure empty cell has some height, if a placeholder can be inserted. 3858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project updateLayout(); 3868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RenderObject *r = node->renderer(); 3872daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (r && r->isTableCell() && toRenderTableCell(r)->contentHeight() <= 0) { 3882daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch Position firstEditablePosition = firstEditablePositionInNode(node.get()); 3892daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch if (firstEditablePosition.isNotNull()) 3902daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch insertBlockPlaceholder(firstEditablePosition); 3912daae5fd11344eaa88a0d92b0f6d65f8d2255c00Ben Murdoch } 3928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 3938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 3948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 3952bde8e466a4451c7319e3a072d118917957d6554Steve Block if (node == m_startBlock && !isEndOfBlock(VisiblePosition(firstPositionInNode(m_startBlock.get())).previous())) 3968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_needPlaceholder = true; 3972bde8e466a4451c7319e3a072d118917957d6554Steve Block else if (node == m_endBlock && !isStartOfBlock(VisiblePosition(lastPositionInNode(m_startBlock.get())).next())) 3988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_needPlaceholder = true; 3998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Update the endpoints of the range being deleted. 401635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project updatePositionForNodeRemoval(node.get(), m_endingPosition); 402635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project updatePositionForNodeRemoval(node.get(), m_leadingWhitespace); 403635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project updatePositionForNodeRemoval(node.get(), m_trailingWhitespace); 4048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CompositeEditCommand::removeNode(node); 4068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 4078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 408635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectstatic void updatePositionForTextRemoval(Node* node, int offset, int count, Position& position) 4098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 410ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch if (position.anchorType() != Position::PositionIsOffsetInAnchor || position.containerNode() != node) 411ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch return; 412ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch 413ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch if (position.offsetInContainerNode() > offset + count) 414ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch position.moveToOffset(position.offsetInContainerNode() - count); 415ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch else if (position.offsetInContainerNode() > offset) 416ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch position.moveToOffset(offset); 4178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 4188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 419635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Projectvoid DeleteSelectionCommand::deleteTextFromNode(PassRefPtr<Text> node, unsigned offset, unsigned count) 4208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 4218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Update the endpoints of the range being deleted. 422635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project updatePositionForTextRemoval(node.get(), offset, count, m_endingPosition); 423635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project updatePositionForTextRemoval(node.get(), offset, count, m_leadingWhitespace); 424635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project updatePositionForTextRemoval(node.get(), offset, count, m_trailingWhitespace); 4255f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian updatePositionForTextRemoval(node.get(), offset, count, m_downstreamEnd); 4268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CompositeEditCommand::deleteTextFromNode(node, offset, count); 4288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 4298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::handleGeneralDelete() 4318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 4325f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian int startOffset = m_upstreamStart.deprecatedEditingOffset(); 43381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Node* startNode = m_upstreamStart.deprecatedNode(); 4348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Never remove the start block unless it's a table, in which case we won't merge content in. 4368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (startNode == m_startBlock && startOffset == 0 && canHaveChildrenForEditing(startNode) && !startNode->hasTagName(tableTag)) { 4378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project startOffset = 0; 4388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project startNode = startNode->traverseNextNode(); 4398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (startOffset >= caretMaxOffset(startNode) && startNode->isTextNode()) { 4428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Text *text = static_cast<Text *>(startNode); 4438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (text->length() > (unsigned)caretMaxOffset(startNode)) 4448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteTextFromNode(text, caretMaxOffset(startNode), text->length() - caretMaxOffset(startNode)); 4458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (startOffset >= lastOffsetForEditing(startNode)) { 4488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project startNode = startNode->traverseNextSibling(); 4498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project startOffset = 0; 4508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Done adjusting the start. See if we're all done. 4538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!startNode) 4548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 4558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 45681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (startNode == m_downstreamEnd.deprecatedNode()) { 457bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (m_downstreamEnd.deprecatedEditingOffset() - startOffset > 0) { 4588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (startNode->isTextNode()) { 4598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // in a text node that needs to be trimmed 4608f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian Text* text = static_cast<Text*>(startNode); 4615f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian deleteTextFromNode(text, startOffset, m_downstreamEnd.deprecatedEditingOffset() - startOffset); 4628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 4635f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian removeChildrenInRange(startNode, startOffset, m_downstreamEnd.deprecatedEditingOffset()); 4648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition = m_upstreamStart; 4658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 467bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen 468bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen // The selection to delete is all in one node. 469bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen if (!startNode->renderer() || (!startOffset && m_downstreamEnd.atLastEditingPositionForNode())) 470bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen removeNode(startNode); 4718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project else { 47381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch bool startNodeWasDescendantOfEndNode = m_upstreamStart.deprecatedNode()->isDescendantOf(m_downstreamEnd.deprecatedNode()); 4748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The selection to delete spans more than one node. 4758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> node(startNode); 4768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (startOffset > 0) { 4788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (startNode->isTextNode()) { 4798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // in a text node that needs to be trimmed 4808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Text *text = static_cast<Text *>(node.get()); 4818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteTextFromNode(text, startOffset, text->length() - startOffset); 4828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project node = node->traverseNextNode(); 4838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 4848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project node = startNode->childNode(startOffset); 4858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 48681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } else if (startNode == m_upstreamEnd.deprecatedNode() && startNode->isTextNode()) { 48781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Text* text = static_cast<Text*>(m_upstreamEnd.deprecatedNode()); 488bec39347bb3bb5bf1187ccaf471d26247f28b585Kristian Monsen deleteTextFromNode(text, 0, m_upstreamEnd.deprecatedEditingOffset()); 4898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 4908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 4918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // handle deleting all nodes that are completely selected 49281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (node && node != m_downstreamEnd.deprecatedNode()) { 493ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch if (comparePositions(firstPositionInOrBeforeNode(node.get()), m_downstreamEnd) >= 0) { 4948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // traverseNextSibling just blew past the end position, so stop deleting 4958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project node = 0; 49681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } else if (!m_downstreamEnd.deprecatedNode()->isDescendantOf(node.get())) { 4978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> nextNode = node->traverseNextSibling(); 4988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // if we just removed a node from the end container, update end position so the 4998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // check above will work 50081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (node->parentNode() == m_downstreamEnd.deprecatedNode()) { 501ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch ASSERT(m_downstreamEnd.deprecatedEditingOffset()); 5025f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian ASSERT(node->nodeIndex() < (unsigned)m_downstreamEnd.deprecatedEditingOffset()); 503ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch m_downstreamEnd.moveToOffset(m_downstreamEnd.deprecatedEditingOffset() - 1); 5048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removeNode(node.get()); 5068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project node = nextNode.get(); 5078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 5088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Node* n = node->lastDescendant(); 50981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_downstreamEnd.deprecatedNode() == n && m_downstreamEnd.deprecatedEditingOffset() >= caretMaxOffset(n)) { 5108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removeNode(node.get()); 5118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project node = 0; 5128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else 5138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project node = node->traverseNextNode(); 5148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 51781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_downstreamEnd.deprecatedNode() != startNode && !m_upstreamStart.deprecatedNode()->isDescendantOf(m_downstreamEnd.deprecatedNode()) && m_downstreamEnd.anchorNode()->inDocument() && m_downstreamEnd.deprecatedEditingOffset() >= caretMinOffset(m_downstreamEnd.deprecatedNode())) { 51881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_downstreamEnd.atLastEditingPositionForNode() && !canHaveChildrenForEditing(m_downstreamEnd.deprecatedNode())) { 5198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The node itself is fully selected, not just its contents. Delete it. 52081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch removeNode(m_downstreamEnd.deprecatedNode()); 5218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } else { 52281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_downstreamEnd.deprecatedNode()->isTextNode()) { 5238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // in a text node that needs to be trimmed 52481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Text* text = static_cast<Text*>(m_downstreamEnd.deprecatedNode()); 5255f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (m_downstreamEnd.deprecatedEditingOffset() > 0) { 5265f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian deleteTextFromNode(text, 0, m_downstreamEnd.deprecatedEditingOffset()); 5278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 52881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Remove children of m_downstreamEnd.deprecatedNode() that come after m_upstreamStart. 52981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch // Don't try to remove children if m_upstreamStart was inside m_downstreamEnd.deprecatedNode() 5308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and m_upstreamStart has been removed from the document, because then we don't 5318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // know how many children to remove. 5328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Make m_upstreamStart a position we update as we remove content, then we can 5338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // always know which children to remove. 53481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch } else if (!(startNodeWasDescendantOfEndNode && !m_upstreamStart.anchorNode()->inDocument())) { 5358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int offset = 0; 53681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_upstreamStart.deprecatedNode()->isDescendantOf(m_downstreamEnd.deprecatedNode())) { 53781bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Node* n = m_upstreamStart.deprecatedNode(); 53881bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch while (n && n->parentNode() != m_downstreamEnd.deprecatedNode()) 5398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project n = n->parentNode(); 5408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (n) 5418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project offset = n->nodeIndex() + 1; 5428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 54381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch removeChildrenInRange(m_downstreamEnd.deprecatedNode(), offset, m_downstreamEnd.deprecatedEditingOffset()); 544ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch m_downstreamEnd.moveToOffset(offset); 5458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 5508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::fixupWhitespace() 5528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 5538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project updateLayout(); 5548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: isRenderedCharacter should be removed, and we should use VisiblePosition::characterAfter and VisiblePosition::characterBefore 55581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_leadingWhitespace.isNotNull() && !m_leadingWhitespace.isRenderedCharacter() && m_leadingWhitespace.deprecatedNode()->isTextNode()) { 55681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Text* textNode = static_cast<Text*>(m_leadingWhitespace.deprecatedNode()); 5578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!textNode->renderer() || textNode->renderer()->style()->collapseWhiteSpace()); 5585f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian replaceTextInNode(textNode, m_leadingWhitespace.deprecatedEditingOffset(), 1, nonBreakingSpaceString()); 5598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 56081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_trailingWhitespace.isNotNull() && !m_trailingWhitespace.isRenderedCharacter() && m_trailingWhitespace.deprecatedNode()->isTextNode()) { 56181bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Text* textNode = static_cast<Text*>(m_trailingWhitespace.deprecatedNode()); 5628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(!textNode->renderer() ||textNode->renderer()->style()->collapseWhiteSpace()); 5635f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian replaceTextInNode(textNode, m_trailingWhitespace.deprecatedEditingOffset(), 1, nonBreakingSpaceString()); 5648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 5658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 5668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// If a selection starts in one block and ends in another, we have to merge to bring content before the 5688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// start together with content after the end. 5698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::mergeParagraphs() 5708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 571635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (!m_mergeBlocksAfterDelete) { 572635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project if (m_pruneStartBlockIfNecessary) { 573635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // We aren't going to merge into the start block, so remove it if it's empty. 5745f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian prune(m_startBlock); 575635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // Removing the start block during a deletion is usually an indication that we need 576635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // a placeholder, but not in this case. 577635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project m_needPlaceholder = false; 578635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 5798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 580635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project } 581635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project 582635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project // It shouldn't have been asked to both try and merge content into the start block and prune it. 583635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project ASSERT(!m_pruneStartBlockIfNecessary); 5848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Deletion should adjust selection endpoints as it removes nodes so that we never get into this state (4099839). 58681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_downstreamEnd.anchorNode()->inDocument() || !m_upstreamStart.anchorNode()->inDocument()) 5878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 5888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: The deletion algorithm shouldn't let this happen. 5905f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (comparePositions(m_upstreamStart, m_downstreamEnd) > 0) 5918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 5928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5935f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // There's nothing to merge. 5945f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (m_upstreamStart == m_downstreamEnd) 5958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 5968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 5978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project VisiblePosition startOfParagraphToMove(m_downstreamEnd); 5988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project VisiblePosition mergeDestination(m_upstreamStart); 5998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // m_downstreamEnd's block has been emptied out by deletion. There is no content inside of it to 6018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // move, so just remove it. 60281bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Element* endBlock = static_cast<Element*>(enclosingBlock(m_downstreamEnd.deprecatedNode())); 60381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!startOfParagraphToMove.deepEquivalent().deprecatedNode() || !endBlock->contains(startOfParagraphToMove.deepEquivalent().deprecatedNode())) { 60481bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch removeNode(enclosingBlock(m_downstreamEnd.deprecatedNode())); 6058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 6068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We need to merge into m_upstreamStart's block, but it's been emptied out and collapsed by deletion. 6092bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!mergeDestination.deepEquivalent().deprecatedNode() || !mergeDestination.deepEquivalent().deprecatedNode()->isDescendantOf(enclosingBlock(m_upstreamStart.containerNode())) || m_startsAtEmptyLine) { 6108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project insertNodeAt(createBreakElement(document()).get(), m_upstreamStart); 6118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project mergeDestination = VisiblePosition(m_upstreamStart); 6128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (mergeDestination == startOfParagraphToMove) 6158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 6168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project VisiblePosition endOfParagraphToMove = endOfParagraph(startOfParagraphToMove); 6188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (mergeDestination == endOfParagraphToMove) 6208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 6218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The rule for merging into an empty block is: only do so if its farther to the right. 6238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: Consider RTL. 6245f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (!m_startsAtEmptyLine && isStartOfParagraph(mergeDestination) && startOfParagraphToMove.absoluteCaretBounds().x() > mergeDestination.absoluteCaretBounds().x()) { 62581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (mergeDestination.deepEquivalent().downstream().deprecatedNode()->hasTagName(brTag)) { 62681bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch removeNodeAndPruneAncestors(mergeDestination.deepEquivalent().downstream().deprecatedNode()); 627d0825bca7fe65beaee391d30da42e937db621564Steve Block m_endingPosition = startOfParagraphToMove.deepEquivalent(); 628d0825bca7fe65beaee391d30da42e937db621564Steve Block return; 629d0825bca7fe65beaee391d30da42e937db621564Steve Block } 6308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 632643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Block images, tables and horizontal rules cannot be made inline with content at mergeDestination. If there is 633643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // any (!isStartOfParagraph(mergeDestination)), don't merge, just move the caret to just before the selection we deleted. 634643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // See https://bugs.webkit.org/show_bug.cgi?id=25439 63581bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (isRenderedAsNonInlineTableImageOrHR(startOfParagraphToMove.deepEquivalent().deprecatedNode()) && !isStartOfParagraph(mergeDestination)) { 636643ca7872b450ea4efacab6188849e5aac2ba161Steve Block m_endingPosition = m_upstreamStart; 637643ca7872b450ea4efacab6188849e5aac2ba161Steve Block return; 638643ca7872b450ea4efacab6188849e5aac2ba161Steve Block } 639643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 640ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch RefPtr<Range> range = Range::create(document(), startOfParagraphToMove.deepEquivalent().parentAnchoredEquivalent(), endOfParagraphToMove.deepEquivalent().parentAnchoredEquivalent()); 641ab9e7a118cf1ea2e3a93dce683b2ded3e7291ddbBen Murdoch RefPtr<Range> rangeToBeReplaced = Range::create(document(), mergeDestination.deepEquivalent().parentAnchoredEquivalent(), mergeDestination.deepEquivalent().parentAnchoredEquivalent()); 6428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!document()->frame()->editor()->client()->shouldMoveRangeAfterDelete(range.get(), rangeToBeReplaced.get())) 6438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 6448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // moveParagraphs will insert placeholders if it removes blocks that would require their use, don't let block 6468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // removals that it does cause the insertion of *another* placeholder. 6478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool needPlaceholder = m_needPlaceholder; 648f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick bool paragraphToMergeIsEmpty = (startOfParagraphToMove == endOfParagraphToMove); 649f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick moveParagraph(startOfParagraphToMove, endOfParagraphToMove, mergeDestination, false, !paragraphToMergeIsEmpty); 6508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_needPlaceholder = needPlaceholder; 6518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // The endingPosition was likely clobbered by the move, so recompute it (moveParagraph selects the moved paragraph). 6528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition = endingSelection().start(); 6538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 6548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::removePreviouslySelectedEmptyTableRows() 6568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 6578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_endTableRow && m_endTableRow->inDocument() && m_endTableRow != m_startTableRow) { 6588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Node* row = m_endTableRow->previousSibling(); 6598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (row && row != m_startTableRow) { 6608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> previousRow = row->previousSibling(); 6618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTableRowEmpty(row)) 6628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Use a raw removeNode, instead of DeleteSelectionCommand's, because 6638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // that won't remove rows, it only empties them in preparation for this function. 6648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CompositeEditCommand::removeNode(row); 6658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project row = previousRow.get(); 6668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Remove empty rows after the start row. 6708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_startTableRow && m_startTableRow->inDocument() && m_startTableRow != m_endTableRow) { 6718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Node* row = m_startTableRow->nextSibling(); 6728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project while (row && row != m_endTableRow) { 6738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> nextRow = row->nextSibling(); 6748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTableRowEmpty(row)) 6758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CompositeEditCommand::removeNode(row); 6768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project row = nextRow.get(); 6778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_endTableRow && m_endTableRow->inDocument() && m_endTableRow != m_startTableRow) 6818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (isTableRowEmpty(m_endTableRow.get())) { 6828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't remove m_endTableRow if it's where we're putting the ending selection. 68381bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (!m_endingPosition.deprecatedNode()->isDescendantOf(m_endTableRow.get())) { 6848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // FIXME: We probably shouldn't remove m_endTableRow unless it's fully selected, even if it is empty. 6858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // We'll need to start adjusting the selection endpoints during deletion to know whether or not m_endTableRow 6868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // was fully selected here. 6878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CompositeEditCommand::removeNode(m_endTableRow.get()); 6888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 6908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 6918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::calculateTypingStyleAfterDelete() 6938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 6948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_typingStyle) 6958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 6968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 6978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Compute the difference between the style before the delete and the style now 6988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // after the delete has been done. Set this style on the frame, so other editing 6998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // commands being composed with this one will work, and also cache it on the command, 7008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // so the Frame::appliedEditing can set it after the whole composite command 7018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // has completed. 7028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If we deleted into a blockquote, but are now no longer in a blockquote, use the alternate typing style 7042bde8e466a4451c7319e3a072d118917957d6554Steve Block if (m_deleteIntoBlockquoteStyle && !enclosingNodeOfType(m_endingPosition, isMailBlockquote, CanCrossEditingBoundary)) 7058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_typingStyle = m_deleteIntoBlockquoteStyle; 7068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_deleteIntoBlockquoteStyle = 0; 7070bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch 70828040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu m_typingStyle->prepareToApplyAt(m_endingPosition); 70928040489d744e0c5d475a88663056c9040ed5320Teng-Hui Zhu if (m_typingStyle->isEmpty()) 7108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_typingStyle = 0; 7118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project VisiblePosition visibleEnd(m_endingPosition); 7128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_typingStyle && 7138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project isStartOfParagraph(visibleEnd) && 7148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project isEndOfParagraph(visibleEnd) && 7155f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian lineBreakExistsAtVisiblePosition(visibleEnd)) { 7168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Apply style to the placeholder that is now holding open the empty paragraph. 7178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This makes sure that the paragraph has the right height, and that the paragraph 7188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // takes on the right style and retains it even if you move the selection away and 7198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // then move it back (which will clear typing style). 7208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project setEndingSelection(visibleEnd); 722f05b935882198ccf7d81675736e3aeb089c5113aBen Murdoch applyStyle(m_typingStyle.get(), EditActionUnspecified); 7238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // applyStyle can destroy the placeholder that was at m_endingPosition if it needs to 7248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // move it, but it will set an endingSelection() at [movedPlaceholder, 0] if it does so. 7258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition = endingSelection().start(); 7268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_typingStyle = 0; 7278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This is where we've deleted all traces of a style but not a whole paragraph (that's handled above). 7298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // In this case if we start typing, the new characters should have the same style as the just deleted ones, 7308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // but, if we change the selection, come back and start typing that style should be lost. Also see 7318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // preserveTypingStyle() below. 73268513a70bcd92384395513322f1b801e7bf9c729Steve Block document()->frame()->selection()->setTypingStyle(m_typingStyle); 7338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 7348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::clearTransientState() 7368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 7378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian m_selectionToDelete = VisibleSelection(); 7388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_upstreamStart.clear(); 7398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_downstreamStart.clear(); 7408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_upstreamEnd.clear(); 7418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_downstreamEnd.clear(); 7428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_endingPosition.clear(); 7438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_leadingWhitespace.clear(); 7448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_trailingWhitespace.clear(); 7458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 7468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid DeleteSelectionCommand::doApply() 7488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 7498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If selection has not been set to a custom selection when the command was created, 7508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // use the current ending selection. 7518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_hasSelectionToDelete) 7528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_selectionToDelete = endingSelection(); 753e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block 754e8b154fd68f9b33be40a3590e58347f353835f5cSteve Block if (!m_selectionToDelete.isNonOrphanedRange()) 7558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 7568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // If the deletion is occurring in a text field, and we're not deleting to replace the selection, then let the frame call across the bridge to notify the form delegate. 7588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!m_replace) { 75981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch Node* startNode = m_selectionToDelete.start().deprecatedNode(); 7608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Node* ancestorNode = startNode ? startNode->shadowAncestorNode() : 0; 7618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (ancestorNode && ancestorNode->hasTagName(inputTag) 7628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project && static_cast<HTMLInputElement*>(ancestorNode)->isTextField() 7638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project && ancestorNode->focused()) 7645abb8606fa57c3ebfc8b3c3dbc3fa4a25d2ae306Iain Merrick document()->frame()->editor()->textWillBeDeletedInTextField(static_cast<Element*>(ancestorNode)); 7658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // save this to later make the selection with 7688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project EAffinity affinity = m_selectionToDelete.affinity(); 7698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Position downstreamEnd = m_selectionToDelete.end().downstream(); 7714576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang m_needPlaceholder = isStartOfParagraph(m_selectionToDelete.visibleStart(), CanCrossEditingBoundary) 7724576aa36e9a9671459299c7963ac95aa94beaea9Shimeng (Simon) Wang && isEndOfParagraph(m_selectionToDelete.visibleEnd(), CanCrossEditingBoundary) 773e14391e94c850b8bd03680c23b38978db68687a8John Reck && !lineBreakExistsAtVisiblePosition(m_selectionToDelete.visibleEnd()); 7748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_needPlaceholder) { 7758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Don't need a placeholder when deleting a selection that starts just before a table 7768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // and ends inside it (we do need placeholders to hold open empty cells, but that's 7778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // handled elsewhere). 7788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (Node* table = isLastPositionBeforeTable(m_selectionToDelete.visibleStart())) 77981bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch if (m_selectionToDelete.end().deprecatedNode()->isDescendantOf(table)) 7808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_needPlaceholder = false; 7818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 7828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // set up our state 7858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project initializePositionData(); 7868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Delete any text that may hinder our ability to fixup whitespace after the delete 7888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project deleteInsignificantTextDownstream(m_trailingWhitespace); 7898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project saveTypingStyleState(); 7918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 7928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // deleting just a BR is handled specially, at least because we do not 7938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // want to replace it with a placeholder BR! 7948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (handleSpecialCaseBRDelete()) { 7958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project calculateTypingStyleAfterDelete(); 7968f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setEndingSelection(VisibleSelection(m_endingPosition, affinity)); 7978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearTransientState(); 7988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project rebalanceWhitespace(); 7998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 8008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 8018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project handleGeneralDelete(); 8038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project fixupWhitespace(); 8058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project mergeParagraphs(); 8078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project removePreviouslySelectedEmptyTableRows(); 8098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project RefPtr<Node> placeholder = m_needPlaceholder ? createBreakElement(document()).get() : 0; 8118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (placeholder) 8138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project insertNodeAt(placeholder.get(), m_endingPosition); 8148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project rebalanceWhitespaceAt(m_endingPosition); 8168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project calculateTypingStyleAfterDelete(); 8188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8198f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian setEndingSelection(VisibleSelection(m_endingPosition, affinity)); 8208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project clearTransientState(); 8218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 8228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source ProjectEditAction DeleteSelectionCommand::editingAction() const 8248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Note that DeleteSelectionCommand is also used when the user presses the Delete key, 8268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // but in that case there's a TypingCommand that supplies the editingAction(), so 8278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // the Undo menu correctly shows "Undo Typing" 8288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return EditActionCut; 8298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 8308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Normally deletion doesn't preserve the typing style that was present before it. For example, 8328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// type a character, Bold, then delete the character and start typing. The Bold typing style shouldn't 8338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// stick around. Deletion should preserve a typing style that *it* sets, however. 8348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool DeleteSelectionCommand::preservesTypingStyle() const 8358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 8368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return m_typingStyle; 8378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 8388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 8398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WebCore 840