/* * Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "third_party/blink/renderer/core/editing/commands/composite_edit_command.h" #include <algorithm> #include "third_party/blink/renderer/core/accessibility/blink_ax_event_intent.h" #include "third_party/blink/renderer/core/accessibility/scoped_blink_ax_event_intent.h" #include "third_party/blink/renderer/core/dom/document.h" #include "third_party/blink/renderer/core/dom/document_fragment.h" #include "third_party/blink/renderer/core/dom/element_traversal.h" #include "third_party/blink/renderer/core/dom/events/scoped_event_queue.h" #include "third_party/blink/renderer/core/dom/node_traversal.h" #include "third_party/blink/renderer/core/dom/range.h" #include "third_party/blink/renderer/core/dom/text.h" #include "third_party/blink/renderer/core/editing/commands/append_node_command.h" #include "third_party/blink/renderer/core/editing/commands/apply_style_command.h" #include "third_party/blink/renderer/core/editing/commands/delete_from_text_node_command.h" #include "third_party/blink/renderer/core/editing/commands/delete_selection_command.h" #include "third_party/blink/renderer/core/editing/commands/editing_commands_utilities.h" #include "third_party/blink/renderer/core/editing/commands/insert_into_text_node_command.h" #include "third_party/blink/renderer/core/editing/commands/insert_line_break_command.h" #include "third_party/blink/renderer/core/editing/commands/insert_node_before_command.h" #include "third_party/blink/renderer/core/editing/commands/insert_paragraph_separator_command.h" #include "third_party/blink/renderer/core/editing/commands/merge_identical_elements_command.h" #include "third_party/blink/renderer/core/editing/commands/remove_css_property_command.h" #include "third_party/blink/renderer/core/editing/commands/remove_node_command.h" #include "third_party/blink/renderer/core/editing/commands/remove_node_preserving_children_command.h" #include "third_party/blink/renderer/core/editing/commands/replace_node_with_span_command.h" #include "third_party/blink/renderer/core/editing/commands/replace_selection_command.h" #include "third_party/blink/renderer/core/editing/commands/set_character_data_command.h" #include "third_party/blink/renderer/core/editing/commands/set_node_attribute_command.h" #include "third_party/blink/renderer/core/editing/commands/split_element_command.h" #include "third_party/blink/renderer/core/editing/commands/split_text_node_command.h" #include "third_party/blink/renderer/core/editing/commands/split_text_node_containing_element_command.h" #include "third_party/blink/renderer/core/editing/commands/undo_stack.h" #include "third_party/blink/renderer/core/editing/commands/wrap_contents_in_dummy_span_command.h" #include "third_party/blink/renderer/core/editing/editing_utilities.h" #include "third_party/blink/renderer/core/editing/editor.h" #include "third_party/blink/renderer/core/editing/ephemeral_range.h" #include "third_party/blink/renderer/core/editing/frame_selection.h" #include "third_party/blink/renderer/core/editing/iterators/text_iterator.h" #include "third_party/blink/renderer/core/editing/markers/document_marker_controller.h" #include "third_party/blink/renderer/core/editing/plain_text_range.h" #include "third_party/blink/renderer/core/editing/relocatable_position.h" #include "third_party/blink/renderer/core/editing/selection_template.h" #include "third_party/blink/renderer/core/editing/serializers/serialization.h" #include "third_party/blink/renderer/core/editing/visible_position.h" #include "third_party/blink/renderer/core/editing/visible_selection.h" #include "third_party/blink/renderer/core/editing/visible_units.h" #include "third_party/blink/renderer/core/frame/local_frame.h" #include "third_party/blink/renderer/core/html/forms/html_input_element.h" #include "third_party/blink/renderer/core/html/html_br_element.h" #include "third_party/blink/renderer/core/html/html_div_element.h" #include "third_party/blink/renderer/core/html/html_element.h" #include "third_party/blink/renderer/core/html/html_li_element.h" #include "third_party/blink/renderer/core/html/html_object_element.h" #include "third_party/blink/renderer/core/html/html_olist_element.h" #include "third_party/blink/renderer/core/html/html_quote_element.h" #include "third_party/blink/renderer/core/html/html_span_element.h" #include "third_party/blink/renderer/core/html/html_ulist_element.h" #include "third_party/blink/renderer/core/html_names.h" #include "third_party/blink/renderer/core/layout/layout_block_flow.h" #include "third_party/blink/renderer/core/layout/layout_text.h" #include "third_party/blink/renderer/core/page/chrome_client.h" #include "third_party/blink/renderer/core/page/page.h" #include "third_party/blink/renderer/platform/bindings/exception_state.h" #include "third_party/blink/renderer/platform/heap/collection_support/clear_collection_scope.h" #include "third_party/blink/renderer/platform/heap/garbage_collected.h" #include "third_party/blink/renderer/platform/instrumentation/resource_coordinator/document_resource_coordinator.h" namespace blink { namespace { bool IsWhitespaceForRebalance(const Text& text_node, UChar character) { … } } // namespace CompositeEditCommand::CompositeEditCommand(Document& document) : … { … } CompositeEditCommand::~CompositeEditCommand() { … } VisibleSelection CompositeEditCommand::EndingVisibleSelection() const { … } bool CompositeEditCommand::Apply() { … } UndoStep* CompositeEditCommand::EnsureUndoStep() { … } bool CompositeEditCommand::PreservesTypingStyle() const { … } bool CompositeEditCommand::IsTypingCommand() const { … } bool CompositeEditCommand::IsCommandGroupWrapper() const { … } bool CompositeEditCommand::IsDragAndDropCommand() const { … } bool CompositeEditCommand::IsReplaceSelectionCommand() const { … } // // sugary-sweet convenience functions to help create and apply edit commands in // composite commands // void CompositeEditCommand::ApplyCommandToComposite( EditCommand* command, EditingState* editing_state) { … } void CompositeEditCommand::AppendCommandToUndoStep( CompositeEditCommand* command) { … } void CompositeEditCommand::ApplyStyle(const EditingStyle* style, EditingState* editing_state) { … } void CompositeEditCommand::ApplyStyle(const EditingStyle* style, const Position& start, const Position& end, EditingState* editing_state) { … } void CompositeEditCommand::ApplyStyledElement(Element* element, EditingState* editing_state) { … } void CompositeEditCommand::RemoveStyledElement(Element* element, EditingState* editing_state) { … } void CompositeEditCommand::InsertParagraphSeparator( EditingState* editing_state, bool use_default_paragraph_element, bool paste_blockqutoe_into_unquoted_area) { … } bool CompositeEditCommand::IsRemovableBlock(const Node* node) { … } void CompositeEditCommand::InsertNodeBefore( Node* insert_child, Node* ref_child, EditingState* editing_state, ShouldAssumeContentIsAlwaysEditable should_assume_content_is_always_editable) { … } void CompositeEditCommand::InsertNodeAfter(Node* insert_child, Node* ref_child, EditingState* editing_state) { … } void CompositeEditCommand::InsertNodeAt(Node* insert_child, const Position& editing_position, EditingState* editing_state) { … } void CompositeEditCommand::AppendNode(Node* node, ContainerNode* parent, EditingState* editing_state) { … } void CompositeEditCommand::RemoveAllChildrenIfPossible( ContainerNode* container, EditingState* editing_state, ShouldAssumeContentIsAlwaysEditable should_assume_content_is_always_editable) { … } void CompositeEditCommand::RemoveChildrenInRange(Node* node, unsigned from, unsigned to, EditingState* editing_state) { … } void CompositeEditCommand::RemoveNode( Node* node, EditingState* editing_state, ShouldAssumeContentIsAlwaysEditable should_assume_content_is_always_editable) { … } void CompositeEditCommand::RemoveNodePreservingChildren( Node* node, EditingState* editing_state, ShouldAssumeContentIsAlwaysEditable should_assume_content_is_always_editable) { … } void CompositeEditCommand::RemoveNodeAndPruneAncestors( Node* node, EditingState* editing_state, Node* exclude_node) { … } void CompositeEditCommand::MoveRemainingSiblingsToNewParent( Node* node, Node* past_last_node_to_move, Element* new_parent, EditingState* editing_state) { … } void CompositeEditCommand::UpdatePositionForNodeRemovalPreservingChildren( Position& position, Node& node) { … } HTMLSpanElement* CompositeEditCommand::ReplaceElementWithSpanPreservingChildrenAndAttributes( HTMLElement* node) { … } void CompositeEditCommand::Prune(Node* node, EditingState* editing_state, Node* exclude_node) { … } void CompositeEditCommand::SplitTextNode(Text* node, unsigned offset) { … } void CompositeEditCommand::SplitElement(Element* element, Node* at_child) { … } void CompositeEditCommand::MergeIdenticalElements(Element* first, Element* second, EditingState* editing_state) { … } void CompositeEditCommand::WrapContentsInDummySpan(Element* element) { … } void CompositeEditCommand::SplitTextNodeContainingElement(Text* text, unsigned offset) { … } void CompositeEditCommand::InsertTextIntoNode(Text* node, unsigned offset, const String& text) { … } void CompositeEditCommand::DeleteTextFromNode(Text* node, unsigned offset, unsigned count) { … } void CompositeEditCommand::ReplaceTextInNode(Text* node, unsigned offset, unsigned count, const String& replacement_text) { … } Position CompositeEditCommand::ReplaceSelectedTextInNode(const String& text) { … } Position CompositeEditCommand::PositionOutsideTabSpan(const Position& pos) { … } void CompositeEditCommand::InsertNodeAtTabSpanPosition( Node* node, const Position& pos, EditingState* editing_state) { … } bool CompositeEditCommand::DeleteSelection( EditingState* editing_state, const DeleteSelectionOptions& options) { … } void CompositeEditCommand::RemoveCSSProperty(Element* element, CSSPropertyID property) { … } void CompositeEditCommand::RemoveElementAttribute( Element* element, const QualifiedName& attribute) { … } void CompositeEditCommand::SetNodeAttribute(Element* element, const QualifiedName& attribute, const AtomicString& value) { … } bool CompositeEditCommand::CanRebalance(const Position& position) const { … } // FIXME: Doesn't go into text nodes that contribute adjacent text (siblings, // cousins, etc). void CompositeEditCommand::RebalanceWhitespaceAt(const Position& position) { … } void CompositeEditCommand::RebalanceWhitespaceOnTextSubstring(Text* text_node, int start_offset, int end_offset) { … } void CompositeEditCommand::PrepareWhitespaceAtPositionForSplit( Position& position) { … } void CompositeEditCommand:: ReplaceCollapsibleWhitespaceWithNonBreakingSpaceIfNeeded( const VisiblePosition& visible_position) { … } void CompositeEditCommand::RebalanceWhitespace() { … } static bool IsInsignificantText(const LayoutText& layout_text) { … } void CompositeEditCommand::DeleteInsignificantText(Text* text_node, unsigned start, unsigned end) { … } void CompositeEditCommand::DeleteInsignificantText(const Position& start, const Position& end) { … } void CompositeEditCommand::DeleteInsignificantTextDownstream( const Position& pos) { … } HTMLBRElement* CompositeEditCommand::AppendBlockPlaceholder( Element* container, EditingState* editing_state) { … } HTMLBRElement* CompositeEditCommand::InsertBlockPlaceholder( const Position& pos, EditingState* editing_state) { … } static bool IsEmptyListItem(const LayoutBlockFlow& block_flow) { … } HTMLBRElement* CompositeEditCommand::AddBlockPlaceholderIfNeeded( Element* container, EditingState* editing_state) { … } // Assumes that the position is at a placeholder and does the removal without // much checking. void CompositeEditCommand::RemovePlaceholderAt(const Position& p) { … } HTMLElement* CompositeEditCommand::InsertNewDefaultParagraphElementAt( const Position& position, EditingState* editing_state) { … } // If the paragraph is not entirely within it's own block, create one and move // the paragraph into it, and return that block. Otherwise return 0. HTMLElement* CompositeEditCommand::MoveParagraphContentsToNewBlockIfNecessary( const Position& pos, EditingState* editing_state) { … } void CompositeEditCommand::PushAnchorElementDown(Element* anchor_node, EditingState* editing_state) { … } // Clone the paragraph between start and end under blockElement, // preserving the hierarchy up to outerNode. void CompositeEditCommand::CloneParagraphUnderNewElement( const Position& start, const Position& end, Node* passed_outer_node, Element* block_element, EditingState* editing_state) { … } // There are bugs in deletion when it removes a fully selected table/list. // It expands and removes the entire table/list, but will let content // before and after the table/list collapse onto one line. // Deleting a paragraph will leave a placeholder. Remove it (and prune // empty or unrendered parents). void CompositeEditCommand::CleanupAfterDeletion(EditingState* editing_state) { … } void CompositeEditCommand::CleanupAfterDeletion(EditingState* editing_state, VisiblePosition destination) { … } // This is a version of moveParagraph that preserves style by keeping the // original markup. It is currently used only by IndentOutdentCommand but it is // meant to be used in the future by several other commands such as InsertList // and the align commands. // The blockElement parameter is the element to move the paragraph to, outerNode // is the top element of the paragraph hierarchy. void CompositeEditCommand::MoveParagraphWithClones( const VisiblePosition& start_of_paragraph_to_move, const VisiblePosition& end_of_paragraph_to_move, HTMLElement* block_element, Node* outer_node, EditingState* editing_state) { … } void CompositeEditCommand::MoveParagraph( const VisiblePosition& start_of_paragraph_to_move, const VisiblePosition& end_of_paragraph_to_move, const VisiblePosition& destination, EditingState* editing_state, ShouldPreserveSelection should_preserve_selection, ShouldPreserveStyle should_preserve_style, Node* constraining_ancestor) { … } void CompositeEditCommand::MoveParagraphs( const VisiblePosition& start_of_paragraph_to_move, const VisiblePosition& end_of_paragraph_to_move, const VisiblePosition& destination, EditingState* editing_state, ShouldPreserveSelection should_preserve_selection, ShouldPreserveStyle should_preserve_style, Node* constraining_ancestor) { … } // FIXME: Send an appropriate shouldDeleteRange call. bool CompositeEditCommand::BreakOutOfEmptyListItem( EditingState* editing_state) { … } // If the caret is in an empty quoted paragraph, and either there is nothing // before that paragraph, or what is before is unquoted, and the user presses // delete, unquote that paragraph. bool CompositeEditCommand::BreakOutOfEmptyMailBlockquotedParagraph( EditingState* editing_state) { … } // Operations use this function to avoid inserting content into an anchor when // at the start or the end of that anchor, as in NSTextView. // FIXME: This is only an approximation of NSTextViews insertion behavior, which // varies depending on how the caret was made. Position CompositeEditCommand::PositionAvoidingSpecialElementBoundary( const Position& original, EditingState* editing_state) { … } // Splits the tree parent by parent until we reach the specified ancestor. We // use VisiblePositions to determine if the split is necessary. Returns the last // split node. Node* CompositeEditCommand::SplitTreeToNode(Node* start, Node* end, bool should_split_ancestor) { … } void CompositeEditCommand::SetStartingSelection( const SelectionForUndoStep& selection) { … } void CompositeEditCommand::SetEndingSelection( const SelectionForUndoStep& selection) { … } void CompositeEditCommand::SetParent(CompositeEditCommand* parent) { … } // Determines whether a node is inside a range or visibly starts and ends at the // boundaries of the range. Call this function to determine whether a node is // visibly fit inside selectedRange bool CompositeEditCommand::IsNodeVisiblyContainedWithin( Node& node, const EphemeralRange& selected_range) { … } void CompositeEditCommand::Trace(Visitor* visitor) const { … } void CompositeEditCommand::AppliedEditing() { … } } // namespace blink
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