| /** |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "RenderTextControl.h" |
| |
| #include "CharacterNames.h" |
| #include "Document.h" |
| #include "Editor.h" |
| #include "EditorClient.h" |
| #include "Event.h" |
| #include "EventNames.h" |
| #include "Frame.h" |
| #include "HTMLBRElement.h" |
| #include "HTMLInputElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLTextAreaElement.h" |
| #include "HTMLTextFieldInnerElement.h" |
| #include "HitTestResult.h" |
| #include "LocalizedStrings.h" |
| #include "MouseEvent.h" |
| #include "PlatformScrollBar.h" |
| #include "RenderTheme.h" |
| #include "SearchPopupMenu.h" |
| #include "SelectionController.h" |
| #include "Settings.h" |
| #include "Text.h" |
| #include "TextIterator.h" |
| #include "TextStyle.h" |
| #include "htmlediting.h" |
| #include "visible_units.h" |
| #include <math.h> |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| using namespace EventNames; |
| using namespace HTMLNames; |
| |
| class RenderTextControlInnerBlock : public RenderBlock { |
| public: |
| RenderTextControlInnerBlock(Node* node) : RenderBlock(node) { } |
| |
| virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction); |
| }; |
| |
| bool RenderTextControlInnerBlock::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) |
| { |
| RenderTextControl* renderer = static_cast<RenderTextControl*>(node()->shadowAncestorNode()->renderer()); |
| |
| return RenderBlock::nodeAtPoint(request, result, x, y, tx, ty, renderer->placeholderIsVisible() ? HitTestBlockBackground : hitTestAction); |
| } |
| |
| RenderTextControl::RenderTextControl(Node* node, bool multiLine) |
| : RenderBlock(node) |
| , m_dirty(false) |
| , m_multiLine(multiLine) |
| , m_placeholderVisible(false) |
| , m_userEdited(false) |
| , m_searchPopup(0) |
| , m_searchPopupIsVisible(false) |
| , m_searchEventTimer(this, &RenderTextControl::searchEventTimerFired) |
| { |
| } |
| |
| RenderTextControl::~RenderTextControl() |
| { |
| if (m_searchPopup) { |
| m_searchPopup->disconnectClient(); |
| m_searchPopup = 0; |
| } |
| if (m_multiLine && node()) |
| static_cast<HTMLTextAreaElement*>(node())->rendererWillBeDestroyed(); |
| // The children renderers have already been destroyed by destroyLeftoverChildren |
| if (m_innerBlock) |
| m_innerBlock->detach(); |
| else if (m_innerText) |
| m_innerText->detach(); |
| } |
| |
| void RenderTextControl::setStyle(RenderStyle* style) |
| { |
| RenderBlock::setStyle(style); |
| if (m_innerBlock) { |
| // We may have set the width and the height in the old style in layout(). Reset them now to avoid |
| // getting a spurious layout hint. |
| m_innerBlock->renderer()->style()->setHeight(Length()); |
| m_innerBlock->renderer()->style()->setWidth(Length()); |
| m_innerBlock->renderer()->setStyle(createInnerBlockStyle(style)); |
| } |
| |
| if (m_innerText) { |
| RenderBlock* textBlockRenderer = static_cast<RenderBlock*>(m_innerText->renderer()); |
| RenderStyle* textBlockStyle = createInnerTextStyle(style); |
| // We may have set the width and the height in the old style in layout(). Reset them now to avoid |
| // getting a spurious layout hint. |
| textBlockRenderer->style()->setHeight(Length()); |
| textBlockRenderer->style()->setWidth(Length()); |
| textBlockRenderer->setStyle(textBlockStyle); |
| for (Node* n = m_innerText->firstChild(); n; n = n->traverseNextNode(m_innerText.get())) { |
| if (n->renderer()) |
| n->renderer()->setStyle(textBlockStyle); |
| } |
| } |
| if (m_resultsButton) |
| m_resultsButton->renderer()->setStyle(createResultsButtonStyle(style)); |
| |
| if (m_cancelButton) |
| m_cancelButton->renderer()->setStyle(createCancelButtonStyle(style)); |
| |
| setHasOverflowClip(false); |
| setReplaced(isInline()); |
| } |
| |
| static Color disabledTextColor(const Color& textColor, const Color& backgroundColor) |
| { |
| // The explcit check for black is an optimization for the 99% case (black on white). |
| // This also means that black on black will turn into grey on black when disabled. |
| if (textColor.rgb() == Color::black || differenceSquared(textColor, Color::white) > differenceSquared(backgroundColor, Color::white)) |
| return textColor.light(); |
| return textColor.dark(); |
| } |
| |
| RenderStyle* RenderTextControl::createInnerBlockStyle(RenderStyle* startStyle) |
| { |
| RenderStyle* innerBlockStyle = new (renderArena()) RenderStyle(); |
| |
| innerBlockStyle->inheritFrom(startStyle); |
| innerBlockStyle->setDisplay(BLOCK); |
| innerBlockStyle->setDirection(LTR); |
| // We don't want the shadow dom to be editable, so we set this block to read-only in case the input itself is editable. |
| innerBlockStyle->setUserModify(READ_ONLY); |
| |
| return innerBlockStyle; |
| } |
| |
| RenderStyle* RenderTextControl::createInnerTextStyle(RenderStyle* startStyle) |
| { |
| RenderStyle* textBlockStyle = new (renderArena()) RenderStyle(); |
| HTMLGenericFormElement* element = static_cast<HTMLGenericFormElement*>(node()); |
| |
| textBlockStyle->inheritFrom(startStyle); |
| // The inner block, if present, always has its direction set to LTR, |
| // so we need to inherit the direction from the element. |
| textBlockStyle->setDirection(style()->direction()); |
| textBlockStyle->setUserModify(element->isReadOnlyControl() || element->disabled() ? READ_ONLY : READ_WRITE_PLAINTEXT_ONLY); |
| if (m_innerBlock) |
| textBlockStyle->setDisplay(INLINE_BLOCK); |
| else |
| textBlockStyle->setDisplay(BLOCK); |
| |
| if (m_multiLine) { |
| // Forward overflow properties. |
| textBlockStyle->setOverflowX(startStyle->overflowX() == OVISIBLE ? OAUTO : startStyle->overflowX()); |
| textBlockStyle->setOverflowY(startStyle->overflowY() == OVISIBLE ? OAUTO : startStyle->overflowY()); |
| |
| // Set word wrap property based on wrap attribute |
| if (static_cast<HTMLTextAreaElement*>(element)->wrap() == HTMLTextAreaElement::ta_NoWrap) { |
| textBlockStyle->setWhiteSpace(PRE); |
| textBlockStyle->setWordWrap(NormalWordWrap); |
| } else { |
| textBlockStyle->setWhiteSpace(PRE_WRAP); |
| textBlockStyle->setWordWrap(BreakWordWrap); |
| } |
| } else { |
| textBlockStyle->setWhiteSpace(PRE); |
| textBlockStyle->setWordWrap(NormalWordWrap); |
| textBlockStyle->setOverflowX(OHIDDEN); |
| textBlockStyle->setOverflowY(OHIDDEN); |
| |
| // Do not allow line-height to be smaller than our default. |
| if (textBlockStyle->font().lineSpacing() > lineHeight(true, true)) |
| textBlockStyle->setLineHeight(Length(-100.0f, Percent)); |
| } |
| |
| if (!m_multiLine) { |
| // We're adding one extra pixel of padding to match WinIE. |
| textBlockStyle->setPaddingLeft(Length(1, Fixed)); |
| textBlockStyle->setPaddingRight(Length(1, Fixed)); |
| } else { |
| // We're adding three extra pixels of padding to line textareas up with text fields. |
| textBlockStyle->setPaddingLeft(Length(3, Fixed)); |
| textBlockStyle->setPaddingRight(Length(3, Fixed)); |
| } |
| |
| if (!element->isEnabled()) |
| textBlockStyle->setColor(disabledTextColor(startStyle->color(), startStyle->backgroundColor())); |
| |
| return textBlockStyle; |
| } |
| |
| RenderStyle* RenderTextControl::createResultsButtonStyle(RenderStyle* startStyle) |
| { |
| ASSERT(!m_multiLine); |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(node()); |
| RenderStyle* resultsBlockStyle; |
| if (input->maxResults() < 0) |
| resultsBlockStyle = getPseudoStyle(RenderStyle::SEARCH_DECORATION); |
| else if (!input->maxResults()) |
| resultsBlockStyle = getPseudoStyle(RenderStyle::SEARCH_RESULTS_DECORATION); |
| else |
| resultsBlockStyle = getPseudoStyle(RenderStyle::SEARCH_RESULTS_BUTTON); |
| |
| if (!resultsBlockStyle) |
| resultsBlockStyle = new (renderArena()) RenderStyle(); |
| |
| if (startStyle) |
| resultsBlockStyle->inheritFrom(startStyle); |
| |
| resultsBlockStyle->setDisplay(INLINE_BLOCK); |
| |
| return resultsBlockStyle; |
| } |
| |
| RenderStyle* RenderTextControl::createCancelButtonStyle(RenderStyle* startStyle) |
| { |
| RenderStyle* cancelBlockStyle; |
| |
| if (RenderStyle* pseudoStyle = getPseudoStyle(RenderStyle::SEARCH_CANCEL_BUTTON)) |
| // We may be sharing style with another search field, but we must not share the cancel button style. |
| cancelBlockStyle = new (renderArena()) RenderStyle(*pseudoStyle); |
| else |
| cancelBlockStyle = new (renderArena()) RenderStyle(); |
| |
| if (startStyle) |
| cancelBlockStyle->inheritFrom(startStyle); |
| |
| cancelBlockStyle->setDisplay(INLINE_BLOCK); |
| |
| updateCancelButtonVisibility(cancelBlockStyle); |
| |
| return cancelBlockStyle; |
| } |
| |
| void RenderTextControl::updatePlaceholder() |
| { |
| bool oldPlaceholderVisible = m_placeholderVisible; |
| |
| String placeholder; |
| if (!m_multiLine) { |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(node()); |
| if (input->value().isEmpty() && document()->focusedNode() != node()) |
| placeholder = input->getAttribute(placeholderAttr); |
| } |
| |
| if (!placeholder.isEmpty() || m_placeholderVisible) { |
| ExceptionCode ec = 0; |
| m_innerText->setInnerText(placeholder, ec); |
| m_placeholderVisible = !placeholder.isEmpty(); |
| } |
| |
| Color color; |
| if (!placeholder.isEmpty()) |
| color = Color::darkGray; |
| else if (node()->isEnabled()) |
| color = style()->color(); |
| else |
| color = disabledTextColor(style()->color(), style()->backgroundColor()); |
| |
| RenderObject* renderer = m_innerText->renderer(); |
| RenderStyle* innerStyle = renderer->style(); |
| if (innerStyle->color() != color) { |
| innerStyle->setColor(color); |
| renderer->repaint(); |
| } |
| |
| // temporary disable textSecurity if placeholder is visible |
| if (style()->textSecurity() != TSNONE && oldPlaceholderVisible != m_placeholderVisible) { |
| RenderStyle* newInnerStyle = new (renderArena()) RenderStyle(*innerStyle); |
| newInnerStyle->setTextSecurity(m_placeholderVisible ? TSNONE : style()->textSecurity()); |
| renderer->setStyle(newInnerStyle); |
| for (Node* n = m_innerText->firstChild(); n; n = n->traverseNextNode(m_innerText.get())) { |
| if (n->renderer()) |
| n->renderer()->setStyle(newInnerStyle); |
| } |
| } |
| } |
| |
| void RenderTextControl::createSubtreeIfNeeded() |
| { |
| // When adding these elements, create the renderer & style first before adding to the DOM. |
| // Otherwise, the render tree will create some anonymous blocks that will mess up our layout. |
| bool isSearchField = !m_multiLine && static_cast<HTMLInputElement*>(node())->isSearchField(); |
| if (isSearchField && !m_innerBlock) { |
| // Create the inner block element and give it a parent, renderer, and style |
| m_innerBlock = new HTMLTextFieldInnerElement(document(), node()); |
| RenderBlock* innerBlockRenderer = new (renderArena()) RenderBlock(m_innerBlock.get()); |
| m_innerBlock->setRenderer(innerBlockRenderer); |
| m_innerBlock->setAttached(); |
| m_innerBlock->setInDocument(true); |
| innerBlockRenderer->setStyle(createInnerBlockStyle(style())); |
| |
| // Add inner block renderer to Render tree |
| RenderBlock::addChild(innerBlockRenderer); |
| } |
| if (isSearchField && !m_resultsButton) { |
| // Create the results block element and give it a parent, renderer, and style |
| m_resultsButton = new HTMLSearchFieldResultsButtonElement(document()); |
| RenderBlock* resultsBlockRenderer = new (renderArena()) RenderBlock(m_resultsButton.get()); |
| m_resultsButton->setRenderer(resultsBlockRenderer); |
| m_resultsButton->setAttached(); |
| m_resultsButton->setInDocument(true); |
| |
| RenderStyle* resultsBlockStyle = createResultsButtonStyle(m_innerBlock->renderer()->style()); |
| resultsBlockRenderer->setStyle(resultsBlockStyle); |
| |
| // Add results renderer to DOM & Render tree |
| m_innerBlock->renderer()->addChild(resultsBlockRenderer); |
| ExceptionCode ec = 0; |
| m_innerBlock->appendChild(m_resultsButton, ec); |
| } |
| if (!m_innerText) { |
| // Create the text block element and give it a parent, renderer, and style |
| // For non-search fields, there is no intermediate m_innerBlock as the shadow node. |
| // m_innerText will be the shadow node in that case. |
| m_innerText = new HTMLTextFieldInnerTextElement(document(), m_innerBlock ? 0 : node()); |
| RenderTextControlInnerBlock* textBlockRenderer = new (renderArena()) RenderTextControlInnerBlock(m_innerText.get()); |
| m_innerText->setRenderer(textBlockRenderer); |
| m_innerText->setAttached(); |
| m_innerText->setInDocument(true); |
| |
| RenderStyle* parentStyle = style(); |
| if (m_innerBlock) |
| parentStyle = m_innerBlock->renderer()->style(); |
| RenderStyle* textBlockStyle = createInnerTextStyle(parentStyle); |
| textBlockRenderer->setStyle(textBlockStyle); |
| |
| // Add text block renderer to Render tree |
| if (m_innerBlock) { |
| m_innerBlock->renderer()->addChild(textBlockRenderer); |
| ExceptionCode ec = 0; |
| // Add text block to the DOM |
| m_innerBlock->appendChild(m_innerText, ec); |
| } else |
| RenderBlock::addChild(textBlockRenderer); |
| } |
| if (isSearchField && !m_cancelButton) { |
| // Create the close block element and give it a parent, renderer, and style |
| m_cancelButton = new HTMLSearchFieldCancelButtonElement(document()); |
| RenderBlock* closeBlockRenderer = new (renderArena()) RenderBlock(m_cancelButton.get()); |
| m_cancelButton->setRenderer(closeBlockRenderer); |
| m_cancelButton->setAttached(); |
| m_cancelButton->setInDocument(true); |
| |
| RenderStyle* closeBlockStyle = createCancelButtonStyle(m_innerBlock->renderer()->style()); |
| closeBlockRenderer->setStyle(closeBlockStyle); |
| |
| // Add close block renderer to DOM & Render tree |
| m_innerBlock->renderer()->addChild(closeBlockRenderer); |
| ExceptionCode ec = 0; |
| m_innerBlock->appendChild(m_cancelButton, ec); |
| } |
| } |
| |
| void RenderTextControl::updateFromElement() |
| { |
| HTMLGenericFormElement* element = static_cast<HTMLGenericFormElement*>(node()); |
| |
| createSubtreeIfNeeded(); |
| |
| if (m_cancelButton) |
| updateCancelButtonVisibility(m_cancelButton->renderer()->style()); |
| |
| updatePlaceholder(); |
| |
| m_innerText->renderer()->style()->setUserModify(element->isReadOnlyControl() || element->disabled() ? READ_ONLY : READ_WRITE_PLAINTEXT_ONLY); |
| |
| if ((!element->valueMatchesRenderer() || m_multiLine) && !m_placeholderVisible) { |
| String value; |
| if (m_multiLine) |
| value = static_cast<HTMLTextAreaElement*>(element)->value(); |
| else |
| value = static_cast<HTMLInputElement*>(element)->value(); |
| if (value.isNull()) |
| value = ""; |
| else |
| value = value.replace('\\', backslashAsCurrencySymbol()); |
| if (value != text() || !m_innerText->hasChildNodes()) { |
| ExceptionCode ec = 0; |
| m_innerText->setInnerText(value, ec); |
| if (value.endsWith("\n") || value.endsWith("\r")) |
| m_innerText->appendChild(new HTMLBRElement(document()), ec); |
| if (Frame* frame = document()->frame()) |
| frame->editor()->clearUndoRedoOperations(); |
| m_dirty = false; |
| m_userEdited = false; |
| } |
| element->setValueMatchesRenderer(); |
| } |
| |
| if (m_searchPopupIsVisible) |
| m_searchPopup->updateFromElement(); |
| } |
| |
| int RenderTextControl::selectionStart() |
| { |
| Frame* frame = document()->frame(); |
| if (!frame) |
| return 0; |
| return indexForVisiblePosition(frame->selectionController()->start()); |
| } |
| |
| int RenderTextControl::selectionEnd() |
| { |
| Frame* frame = document()->frame(); |
| if (!frame) |
| return 0; |
| return indexForVisiblePosition(frame->selectionController()->end()); |
| } |
| |
| void RenderTextControl::setSelectionStart(int start) |
| { |
| setSelectionRange(start, max(start, selectionEnd())); |
| } |
| |
| void RenderTextControl::setSelectionEnd(int end) |
| { |
| setSelectionRange(min(end, selectionStart()), end); |
| } |
| |
| void RenderTextControl::select() |
| { |
| setSelectionRange(0, text().length()); |
| } |
| |
| void RenderTextControl::setSelectionRange(int start, int end) |
| { |
| end = max(end, 0); |
| start = min(max(start, 0), end); |
| |
| document()->updateLayout(); |
| |
| if (style()->visibility() == HIDDEN || !m_innerText || !m_innerText->renderer() || !m_innerText->renderer()->height()) { |
| if (m_multiLine) |
| static_cast<HTMLTextAreaElement*>(node())->cacheSelection(start, end); |
| else |
| static_cast<HTMLInputElement*>(node())->cacheSelection(start, end); |
| return; |
| } |
| VisiblePosition startPosition = visiblePositionForIndex(start); |
| VisiblePosition endPosition; |
| if (start == end) |
| endPosition = startPosition; |
| else |
| endPosition = visiblePositionForIndex(end); |
| |
| ASSERT(startPosition.isNotNull() && endPosition.isNotNull()); |
| ASSERT(startPosition.deepEquivalent().node()->shadowAncestorNode() == node() && endPosition.deepEquivalent().node()->shadowAncestorNode() == node()); |
| |
| Selection newSelection = Selection(startPosition, endPosition); |
| |
| if (Frame* frame = document()->frame()) |
| frame->selectionController()->setSelection(newSelection); |
| |
| // FIXME: Granularity is stored separately on the frame, but also in the selection controller. |
| // The granularity in the selection controller should be used, and then this line of code would not be needed. |
| if (Frame* frame = document()->frame()) |
| frame->setSelectionGranularity(CharacterGranularity); |
| } |
| |
| Selection RenderTextControl::selection(int start, int end) const |
| { |
| return Selection(VisiblePosition(m_innerText.get(), start, VP_DEFAULT_AFFINITY), |
| VisiblePosition(m_innerText.get(), end, VP_DEFAULT_AFFINITY)); |
| } |
| |
| VisiblePosition RenderTextControl::visiblePositionForIndex(int index) |
| { |
| if (index <= 0) |
| return VisiblePosition(m_innerText.get(), 0, DOWNSTREAM); |
| ExceptionCode ec = 0; |
| RefPtr<Range> range = new Range(document()); |
| range->selectNodeContents(m_innerText.get(), ec); |
| CharacterIterator it(range.get()); |
| it.advance(index - 1); |
| return VisiblePosition(it.range()->endContainer(ec), it.range()->endOffset(ec), UPSTREAM); |
| } |
| |
| int RenderTextControl::indexForVisiblePosition(const VisiblePosition& pos) |
| { |
| Position indexPosition = pos.deepEquivalent(); |
| if (!indexPosition.node() || indexPosition.node()->rootEditableElement() != m_innerText) |
| return 0; |
| ExceptionCode ec = 0; |
| RefPtr<Range> range = new Range(document()); |
| range->setStart(m_innerText.get(), 0, ec); |
| range->setEnd(indexPosition.node(), indexPosition.offset(), ec); |
| return TextIterator::rangeLength(range.get()); |
| } |
| |
| void RenderTextControl::updateCancelButtonVisibility(RenderStyle* style) |
| { |
| ASSERT(!m_multiLine); |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(node()); |
| if (input->value().isEmpty()) |
| style->setVisibility(HIDDEN); |
| else |
| style->setVisibility(VISIBLE); |
| } |
| |
| void RenderTextControl::subtreeHasChanged() |
| { |
| bool wasDirty = m_dirty; |
| m_dirty = true; |
| m_userEdited = true; |
| HTMLGenericFormElement* element = static_cast<HTMLGenericFormElement*>(node()); |
| if (m_multiLine) { |
| element->setValueMatchesRenderer(false); |
| if (element->focused()) |
| if (Frame* frame = document()->frame()) |
| frame->textDidChangeInTextArea(element); |
| } else { |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(element); |
| input->setValueFromRenderer(input->constrainValue(text())); |
| if (m_cancelButton) |
| updateCancelButtonVisibility(m_cancelButton->renderer()->style()); |
| |
| // If the incremental attribute is set, then dispatch the search event |
| if (!input->getAttribute(incrementalAttr).isNull()) |
| startSearchEventTimer(); |
| |
| if (!wasDirty) { |
| if (input->focused()) |
| if (Frame* frame = document()->frame()) |
| frame->textFieldDidBeginEditing(input); |
| } |
| if (input->focused()) |
| if (Frame* frame = document()->frame()) |
| frame->textDidChangeInTextField(input); |
| } |
| } |
| |
| String RenderTextControl::finishText(Vector<UChar>& result) const |
| { |
| UChar symbol = backslashAsCurrencySymbol(); |
| if (symbol != '\\') { |
| size_t size = result.size(); |
| for (size_t i = 0; i < size; ++i) |
| if (result[i] == '\\') |
| result[i] = symbol; |
| } |
| |
| return String::adopt(result); |
| } |
| |
| String RenderTextControl::text() |
| { |
| if (!m_innerText) |
| return ""; |
| |
| Frame* frame = document()->frame(); |
| Text* compositionNode = frame ? frame->editor()->compositionNode() : 0; |
| |
| Vector<UChar> result; |
| |
| for (Node* n = m_innerText.get(); n; n = n->traverseNextNode(m_innerText.get())) { |
| if (n->isTextNode()) { |
| Text* text = static_cast<Text*>(n); |
| String data = text->data(); |
| unsigned length = data.length(); |
| if (text != compositionNode) |
| result.append(data.characters(), length); |
| else { |
| unsigned compositionStart = min(frame->editor()->compositionStart(), length); |
| unsigned compositionEnd = min(max(compositionStart, frame->editor()->compositionEnd()), length); |
| result.append(data.characters(), compositionStart); |
| result.append(data.characters() + compositionEnd, length - compositionEnd); |
| } |
| } |
| } |
| |
| return finishText(result); |
| } |
| |
| static void getNextSoftBreak(RootInlineBox*& line, Node*& breakNode, unsigned& breakOffset) |
| { |
| RootInlineBox* next; |
| for (; line; line = next) { |
| next = line->nextRootBox(); |
| if (next && !line->endsWithBreak()) { |
| ASSERT(line->lineBreakObj()); |
| breakNode = line->lineBreakObj()->node(); |
| breakOffset = line->lineBreakPos(); |
| line = next; |
| return; |
| } |
| } |
| breakNode = 0; |
| } |
| |
| String RenderTextControl::textWithHardLineBreaks() |
| { |
| if (!m_innerText) |
| return ""; |
| Node* firstChild = m_innerText->firstChild(); |
| if (!firstChild) |
| return ""; |
| |
| document()->updateLayout(); |
| |
| RenderObject* renderer = firstChild->renderer(); |
| if (!renderer) |
| return ""; |
| |
| InlineBox* box = renderer->inlineBox(0, DOWNSTREAM); |
| if (!box) |
| return ""; |
| |
| Frame* frame = document()->frame(); |
| Text* compositionNode = frame ? frame->editor()->compositionNode() : 0; |
| |
| Node* breakNode; |
| unsigned breakOffset; |
| RootInlineBox* line = box->root(); |
| getNextSoftBreak(line, breakNode, breakOffset); |
| |
| Vector<UChar> result; |
| |
| for (Node* n = firstChild; n; n = n->traverseNextNode(m_innerText.get())) { |
| if (n->hasTagName(brTag)) |
| result.append(&newlineCharacter, 1); |
| else if (n->isTextNode()) { |
| Text* text = static_cast<Text*>(n); |
| String data = text->data(); |
| unsigned length = data.length(); |
| unsigned compositionStart = (text == compositionNode) |
| ? min(frame->editor()->compositionStart(), length) : 0; |
| unsigned compositionEnd = (text == compositionNode) |
| ? min(max(compositionStart, frame->editor()->compositionEnd()), length) : 0; |
| unsigned position = 0; |
| while (breakNode == n && breakOffset < compositionStart) { |
| result.append(data.characters() + position, breakOffset - position); |
| position = breakOffset; |
| result.append(&newlineCharacter, 1); |
| getNextSoftBreak(line, breakNode, breakOffset); |
| } |
| result.append(data.characters() + position, compositionStart - position); |
| position = compositionEnd; |
| while (breakNode == n && breakOffset <= length) { |
| if (breakOffset > position) { |
| result.append(data.characters() + position, breakOffset - position); |
| position = breakOffset; |
| result.append(&newlineCharacter, 1); |
| } |
| getNextSoftBreak(line, breakNode, breakOffset); |
| } |
| result.append(data.characters() + position, length - position); |
| } |
| while (breakNode == n) |
| getNextSoftBreak(line, breakNode, breakOffset); |
| } |
| |
| return finishText(result); |
| } |
| |
| void RenderTextControl::calcHeight() |
| { |
| int rows = 1; |
| if (m_multiLine) |
| rows = static_cast<HTMLTextAreaElement*>(node())->rows(); |
| |
| int line = m_innerText->renderer()->lineHeight(true, true); |
| int toAdd = paddingTop() + paddingBottom() + borderTop() + borderBottom(); |
| |
| int innerToAdd = m_innerText->renderer()->borderTop() + m_innerText->renderer()->borderBottom() + |
| m_innerText->renderer()->paddingTop() + m_innerText->renderer()->paddingBottom() + |
| m_innerText->renderer()->marginTop() + m_innerText->renderer()->marginBottom(); |
| |
| if (m_resultsButton) { |
| static_cast<RenderBlock*>(m_resultsButton->renderer())->calcHeight(); |
| innerToAdd = max(innerToAdd, |
| m_resultsButton->renderer()->borderTop() + m_resultsButton->renderer()->borderBottom() + |
| m_resultsButton->renderer()->paddingTop() + m_resultsButton->renderer()->paddingBottom() + |
| m_resultsButton->renderer()->marginTop() + m_resultsButton->renderer()->marginBottom()); |
| line = max(line, m_resultsButton->renderer()->height()); |
| } |
| if (m_cancelButton) { |
| static_cast<RenderBlock*>(m_cancelButton->renderer())->calcHeight(); |
| innerToAdd = max(innerToAdd, |
| m_cancelButton->renderer()->borderTop() + m_cancelButton->renderer()->borderBottom() + |
| m_cancelButton->renderer()->paddingTop() + m_cancelButton->renderer()->paddingBottom() + |
| m_cancelButton->renderer()->marginTop() + m_cancelButton->renderer()->marginBottom()); |
| line = max(line, m_cancelButton->renderer()->height()); |
| } |
| toAdd += innerToAdd; |
| |
| // FIXME: We should get the size of the scrollbar from the RenderTheme instead. |
| int scrollbarSize = 0; |
| // We are able to have a horizontal scrollbar if the overflow style is scroll, or if its auto and there's no word wrap. |
| if (m_innerText->renderer()->style()->overflowX() == OSCROLL || (m_innerText->renderer()->style()->overflowX() == OAUTO && m_innerText->renderer()->style()->wordWrap() == NormalWordWrap)) |
| scrollbarSize = PlatformScrollbar::horizontalScrollbarHeight(); |
| |
| m_height = line * rows + toAdd + scrollbarSize; |
| |
| RenderBlock::calcHeight(); |
| } |
| |
| short RenderTextControl::baselinePosition(bool b, bool isRootLineBox) const |
| { |
| if (m_multiLine) |
| return height() + marginTop() + marginBottom(); |
| return RenderBlock::baselinePosition(b, isRootLineBox); |
| } |
| |
| bool RenderTextControl::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, int x, int y, int tx, int ty, HitTestAction hitTestAction) |
| { |
| // If we're within the text control, we want to act as if we've hit the inner text block element, in case the point |
| // was on the control but not on the inner element (see Radar 4617841). |
| |
| // In a search field, we want to act as if we've hit the results block if we're to the left of the inner text block, |
| // and act as if we've hit the close block if we're to the right of the inner text block. |
| |
| if (RenderBlock::nodeAtPoint(request, result, x, y, tx, ty, hitTestAction) && |
| (result.innerNode() == element() || result.innerNode() == m_innerBlock)) { |
| IntPoint localPoint = IntPoint(x - tx - m_x, y - ty - m_y); |
| if (m_innerBlock) { |
| int textLeft = tx + m_x + m_innerBlock->renderer()->xPos() + m_innerText->renderer()->xPos(); |
| int textRight = textLeft + m_innerText->renderer()->width(); |
| if (m_resultsButton && x < textLeft) { |
| result.setInnerNode(m_resultsButton.get()); |
| result.setLocalPoint(IntPoint(localPoint.x() - m_innerText->renderer()->xPos() - m_innerBlock->renderer()->xPos() - m_resultsButton->renderer()->xPos(), |
| localPoint.y() - m_innerText->renderer()->yPos() - m_innerBlock->renderer()->yPos() - m_resultsButton->renderer()->yPos())); |
| return true; |
| } |
| if (m_cancelButton && x > textRight) { |
| result.setInnerNode(m_cancelButton.get()); |
| result.setLocalPoint(IntPoint(localPoint.x() - m_innerText->renderer()->xPos() - m_innerBlock->renderer()->xPos() - m_cancelButton->renderer()->xPos(), |
| localPoint.y() - m_innerText->renderer()->yPos() - m_innerBlock->renderer()->yPos() - m_cancelButton->renderer()->yPos())); |
| return true; |
| } |
| } |
| |
| // Hit the inner text block. |
| result.setInnerNode(m_innerText.get()); |
| result.setLocalPoint(IntPoint(localPoint.x() - m_innerText->renderer()->xPos() - (m_innerBlock.get() ? m_innerBlock->renderer()->xPos() : 0), |
| localPoint.y() - m_innerText->renderer()->yPos() - (m_innerBlock.get() ? m_innerBlock->renderer()->yPos() : 0))); |
| |
| return true; |
| } |
| |
| return false; |
| } |
| |
| IntRect RenderTextControl::controlClipRect(int tx, int ty) const |
| { |
| IntRect clipRect = contentBox(); |
| clipRect.move(tx, ty); |
| return clipRect; |
| } |
| |
| void RenderTextControl::layout() |
| { |
| int oldHeight = m_height; |
| calcHeight(); |
| bool relayoutChildren = oldHeight != m_height; |
| |
| // Set the text block's height |
| int textBlockHeight = m_height - paddingTop() - paddingBottom() - borderTop() - borderBottom(); |
| int currentTextBlockHeight = m_innerText->renderer()->height(); |
| if (m_multiLine || m_innerBlock || currentTextBlockHeight > m_height) { |
| if (textBlockHeight != currentTextBlockHeight) |
| relayoutChildren = true; |
| m_innerText->renderer()->style()->setHeight(Length(textBlockHeight, Fixed)); |
| } |
| if (m_innerBlock) { |
| if (textBlockHeight != m_innerBlock->renderer()->height()) |
| relayoutChildren = true; |
| m_innerBlock->renderer()->style()->setHeight(Length(textBlockHeight, Fixed)); |
| } |
| |
| int oldWidth = m_width; |
| calcWidth(); |
| if (oldWidth != m_width) |
| relayoutChildren = true; |
| |
| int searchExtrasWidth = 0; |
| if (m_resultsButton) { |
| m_resultsButton->renderer()->calcWidth(); |
| searchExtrasWidth += m_resultsButton->renderer()->width(); |
| } |
| if (m_cancelButton) { |
| m_cancelButton->renderer()->calcWidth(); |
| searchExtrasWidth += m_cancelButton->renderer()->width(); |
| } |
| |
| // Set the text block's width |
| int textBlockWidth = m_width - paddingLeft() - paddingRight() - borderLeft() - borderRight() - |
| m_innerText->renderer()->paddingLeft() - m_innerText->renderer()->paddingRight() - searchExtrasWidth; |
| if (textBlockWidth != m_innerText->renderer()->width()) |
| relayoutChildren = true; |
| m_innerText->renderer()->style()->setWidth(Length(textBlockWidth, Fixed)); |
| if (m_innerBlock) { |
| int innerBlockWidth = m_width - paddingLeft() - paddingRight() - borderLeft() - borderRight(); |
| if (innerBlockWidth != m_innerBlock->renderer()->width()) |
| relayoutChildren = true; |
| m_innerBlock->renderer()->style()->setWidth(Length(innerBlockWidth, Fixed)); |
| } |
| |
| RenderBlock::layoutBlock(relayoutChildren); |
| |
| // For text fields, center the inner text vertically |
| // Don't do this for search fields, since we don't honor height for them |
| if (!m_multiLine) { |
| currentTextBlockHeight = m_innerText->renderer()->height(); |
| if (!m_innerBlock && currentTextBlockHeight < m_height) |
| m_innerText->renderer()->setPos(m_innerText->renderer()->xPos(), (m_height - currentTextBlockHeight) / 2); |
| } |
| } |
| |
| void RenderTextControl::calcPrefWidths() |
| { |
| ASSERT(prefWidthsDirty()); |
| |
| m_minPrefWidth = 0; |
| m_maxPrefWidth = 0; |
| |
| if (style()->width().isFixed() && style()->width().value() > 0) |
| m_minPrefWidth = m_maxPrefWidth = calcContentBoxWidth(style()->width().value()); |
| else { |
| // Figure out how big a text control needs to be for a given number of characters |
| // (using "0" as the nominal character). |
| const UChar ch = '0'; |
| float charWidth = style()->font().floatWidth(TextRun(&ch, 1), TextStyle(0, 0, 0, false, false, false)); |
| int factor; |
| int scrollbarSize = 0; |
| if (m_multiLine) { |
| factor = static_cast<HTMLTextAreaElement*>(node())->cols(); |
| // FIXME: We should get the size of the scrollbar from the RenderTheme instead. |
| if (m_innerText->renderer()->style()->overflowY() != OHIDDEN) |
| scrollbarSize = PlatformScrollbar::verticalScrollbarWidth(); |
| } else { |
| factor = static_cast<HTMLInputElement*>(node())->size(); |
| if (factor <= 0) |
| factor = 20; |
| } |
| m_maxPrefWidth = static_cast<int>(ceilf(charWidth * factor)) + scrollbarSize + |
| m_innerText->renderer()->paddingLeft() + m_innerText->renderer()->paddingRight(); |
| |
| if (m_resultsButton) |
| m_maxPrefWidth += m_resultsButton->renderer()->borderLeft() + m_resultsButton->renderer()->borderRight() + |
| m_resultsButton->renderer()->paddingLeft() + m_resultsButton->renderer()->paddingRight(); |
| if (m_cancelButton) |
| m_maxPrefWidth += m_cancelButton->renderer()->borderLeft() + m_cancelButton->renderer()->borderRight() + |
| m_cancelButton->renderer()->paddingLeft() + m_cancelButton->renderer()->paddingRight(); |
| } |
| |
| if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) { |
| m_maxPrefWidth = max(m_maxPrefWidth, calcContentBoxWidth(style()->minWidth().value())); |
| m_minPrefWidth = max(m_minPrefWidth, calcContentBoxWidth(style()->minWidth().value())); |
| } else if (style()->width().isPercent() || (style()->width().isAuto() && style()->height().isPercent())) |
| m_minPrefWidth = 0; |
| else |
| m_minPrefWidth = m_maxPrefWidth; |
| |
| if (style()->maxWidth().isFixed() && style()->maxWidth().value() != undefinedLength) { |
| m_maxPrefWidth = min(m_maxPrefWidth, calcContentBoxWidth(style()->maxWidth().value())); |
| m_minPrefWidth = min(m_minPrefWidth, calcContentBoxWidth(style()->maxWidth().value())); |
| } |
| |
| int toAdd = paddingLeft() + paddingRight() + borderLeft() + borderRight(); |
| |
| m_minPrefWidth += toAdd; |
| m_maxPrefWidth += toAdd; |
| |
| setPrefWidthsDirty(false); |
| } |
| |
| void RenderTextControl::forwardEvent(Event* evt) |
| { |
| if (evt->type() == blurEvent) { |
| RenderObject* innerRenderer = m_innerText->renderer(); |
| if (innerRenderer) { |
| RenderLayer* innerLayer = innerRenderer->layer(); |
| if (innerLayer && !m_multiLine) |
| innerLayer->scrollToOffset(style()->direction() == RTL ? innerLayer->scrollWidth() : 0, 0); |
| } |
| updatePlaceholder(); |
| } else if (evt->type() == focusEvent) |
| updatePlaceholder(); |
| else { |
| if (evt->isMouseEvent() && m_resultsButton && static_cast<MouseEvent*>(evt)->x() < m_innerText->renderer()->absoluteBoundingBoxRect().x()) |
| m_resultsButton->defaultEventHandler(evt); |
| else if (evt->isMouseEvent() && m_cancelButton && static_cast<MouseEvent*>(evt)->x() > m_innerText->renderer()->absoluteBoundingBoxRect().right()) |
| m_cancelButton->defaultEventHandler(evt); |
| else |
| m_innerText->defaultEventHandler(evt); |
| } |
| } |
| |
| void RenderTextControl::selectionChanged(bool userTriggered) |
| { |
| HTMLGenericFormElement* element = static_cast<HTMLGenericFormElement*>(node()); |
| if (m_multiLine) |
| static_cast<HTMLTextAreaElement*>(element)->cacheSelection(selectionStart(), selectionEnd()); |
| else |
| static_cast<HTMLInputElement*>(element)->cacheSelection(selectionStart(), selectionEnd()); |
| if (Frame* frame = document()->frame()) |
| if (frame->selectionController()->isRange() && userTriggered) |
| element->dispatchHTMLEvent(selectEvent, true, false); |
| } |
| |
| void RenderTextControl::autoscroll() |
| { |
| RenderLayer* layer = m_innerText->renderer()->layer(); |
| if (layer) |
| layer->autoscroll(); |
| } |
| |
| int RenderTextControl::scrollWidth() const |
| { |
| if (m_innerText) |
| return m_innerText->scrollWidth(); |
| return RenderBlock::scrollWidth(); |
| } |
| |
| int RenderTextControl::scrollHeight() const |
| { |
| if (m_innerText) |
| return m_innerText->scrollHeight(); |
| return RenderBlock::scrollHeight(); |
| } |
| |
| int RenderTextControl::scrollLeft() const |
| { |
| if (m_innerText) |
| return m_innerText->scrollLeft(); |
| return RenderBlock::scrollLeft(); |
| } |
| |
| int RenderTextControl::scrollTop() const |
| { |
| if (m_innerText) |
| return m_innerText->scrollTop(); |
| return RenderBlock::scrollTop(); |
| } |
| |
| void RenderTextControl::setScrollLeft(int newLeft) |
| { |
| if (m_innerText) |
| m_innerText->setScrollLeft(newLeft); |
| } |
| |
| void RenderTextControl::setScrollTop(int newTop) |
| { |
| if (m_innerText) |
| m_innerText->setScrollTop(newTop); |
| } |
| |
| const AtomicString& RenderTextControl::autosaveName() const |
| { |
| return static_cast<Element*>(node())->getAttribute(autosaveAttr); |
| } |
| |
| void RenderTextControl::addSearchResult() |
| { |
| ASSERT(!m_multiLine); |
| |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(node()); |
| if (input->maxResults() <= 0) |
| return; |
| |
| String value = input->value(); |
| if (value.isEmpty()) |
| return; |
| |
| Settings* settings = document()->settings(); |
| if (!settings || settings->privateBrowsingEnabled()) |
| return; |
| |
| int size = static_cast<int>(m_recentSearches.size()); |
| for (int i = size - 1; i >= 0; --i) |
| if (m_recentSearches[i] == value) |
| m_recentSearches.remove(i); |
| |
| m_recentSearches.insert(0, value); |
| while (static_cast<int>(m_recentSearches.size()) > input->maxResults()) |
| m_recentSearches.removeLast(); |
| |
| const AtomicString& name = autosaveName(); |
| if (!m_searchPopup) |
| m_searchPopup = SearchPopupMenu::create(this); |
| m_searchPopup->saveRecentSearches(name, m_recentSearches); |
| } |
| |
| void RenderTextControl::showPopup() |
| { |
| if (m_searchPopupIsVisible) |
| return; |
| |
| if (!m_searchPopup) |
| m_searchPopup = SearchPopupMenu::create(this); |
| |
| if (!m_searchPopup->enabled()) |
| return; |
| |
| m_searchPopupIsVisible = true; |
| |
| const AtomicString& name = autosaveName(); |
| m_searchPopup->loadRecentSearches(name, m_recentSearches); |
| |
| // Trim the recent searches list if the maximum size has changed since we last saved. |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(node()); |
| if (static_cast<int>(m_recentSearches.size()) > input->maxResults()) { |
| do |
| m_recentSearches.removeLast(); |
| while (static_cast<int>(m_recentSearches.size()) > input->maxResults()); |
| m_searchPopup->saveRecentSearches(name, m_recentSearches); |
| } |
| |
| m_searchPopup->show(absoluteBoundingBoxRect(), document()->view(), -1); |
| } |
| |
| void RenderTextControl::hidePopup() |
| { |
| if (m_searchPopup) |
| m_searchPopup->hide(); |
| m_searchPopupIsVisible = false; |
| } |
| |
| void RenderTextControl::valueChanged(unsigned listIndex, bool fireEvents) |
| { |
| ASSERT(static_cast<int>(listIndex) < listSize()); |
| HTMLInputElement* input = static_cast<HTMLInputElement*>(node()); |
| if (static_cast<int>(listIndex) == (listSize() - 1)) { |
| if (fireEvents) { |
| m_recentSearches.clear(); |
| const AtomicString& name = autosaveName(); |
| if (!name.isEmpty()) { |
| if (!m_searchPopup) |
| m_searchPopup = SearchPopupMenu::create(this); |
| m_searchPopup->saveRecentSearches(name, m_recentSearches); |
| } |
| } |
| } else { |
| input->setValue(itemText(listIndex)); |
| if (fireEvents) |
| input->onSearch(); |
| input->select(); |
| } |
| } |
| |
| String RenderTextControl::itemText(unsigned listIndex) const |
| { |
| int size = listSize(); |
| if (size == 1) { |
| ASSERT(!listIndex); |
| return searchMenuNoRecentSearchesText(); |
| } |
| if (!listIndex) |
| return searchMenuRecentSearchesText(); |
| if (itemIsSeparator(listIndex)) |
| return String(); |
| if (static_cast<int>(listIndex) == (size - 1)) |
| return searchMenuClearRecentSearchesText(); |
| return m_recentSearches[listIndex - 1]; |
| } |
| |
| bool RenderTextControl::itemIsEnabled(unsigned listIndex) const |
| { |
| if (!listIndex || itemIsSeparator(listIndex)) |
| return false; |
| return true; |
| } |
| |
| RenderStyle* RenderTextControl::itemStyle(unsigned listIndex) const |
| { |
| return style(); |
| } |
| |
| Color RenderTextControl::itemBackgroundColor(unsigned listIndex) const |
| { |
| return style()->backgroundColor(); |
| } |
| |
| RenderStyle* RenderTextControl::clientStyle() const |
| { |
| return style(); |
| } |
| |
| Document* RenderTextControl::clientDocument() const |
| { |
| return document(); |
| } |
| |
| int RenderTextControl::clientPaddingLeft() const |
| { |
| return paddingLeft() + m_resultsButton->renderer()->width(); |
| } |
| |
| int RenderTextControl::clientPaddingRight() const |
| { |
| return paddingRight() + m_cancelButton->renderer()->width(); |
| } |
| |
| int RenderTextControl::listSize() const |
| { |
| // If there are no recent searches, then our menu will have 1 "No recent searches" item. |
| if (!m_recentSearches.size()) |
| return 1; |
| // Otherwise, leave room in the menu for a header, a separator, and the "Clear recent searches" item. |
| return m_recentSearches.size() + 3; |
| } |
| |
| int RenderTextControl::selectedIndex() const |
| { |
| return -1; |
| } |
| |
| bool RenderTextControl::itemIsSeparator(unsigned listIndex) const |
| { |
| // The separator will be the second to last item in our list. |
| return static_cast<int>(listIndex) == (listSize() - 2); |
| } |
| |
| bool RenderTextControl::itemIsLabel(unsigned listIndex) const |
| { |
| return listIndex == 0; |
| } |
| |
| bool RenderTextControl::itemIsSelected(unsigned listIndex) const |
| { |
| return false; |
| } |
| |
| void RenderTextControl::setTextFromItem(unsigned listIndex) |
| { |
| static_cast<HTMLInputElement*>(node())->setValue(itemText(listIndex)); |
| } |
| |
| bool RenderTextControl::scroll(ScrollDirection direction, ScrollGranularity granularity, float multiplier) |
| { |
| RenderLayer* layer = m_innerText->renderer()->layer(); |
| if (layer && layer->scroll(direction, granularity, multiplier)) |
| return true; |
| return RenderObject::scroll(direction, granularity, multiplier); |
| } |
| |
| void RenderTextControl::searchEventTimerFired(Timer<RenderTextControl>*) |
| { |
| static_cast<HTMLInputElement*>(node())->onSearch(); |
| } |
| |
| void RenderTextControl::stopSearchEventTimer() |
| { |
| m_searchEventTimer.stop(); |
| } |
| |
| void RenderTextControl::startSearchEventTimer() |
| { |
| unsigned length = text().length(); |
| |
| // If there's no text, fire the event right away. |
| if (!length) { |
| m_searchEventTimer.stop(); |
| static_cast<HTMLInputElement*>(node())->onSearch(); |
| return; |
| } |
| |
| // After typing the first key, we wait 0.5 seconds. |
| // After the second key, 0.4 seconds, then 0.3, then 0.2 from then on. |
| m_searchEventTimer.startOneShot(max(0.2, 0.6 - 0.1 * length)); |
| } |
| |
| bool RenderTextControl::isScrollable() const |
| { |
| if (m_innerText && m_innerText->renderer()->isScrollable()) |
| return true; |
| return RenderObject::isScrollable(); |
| } |
| |
| } // namespace WebCore |
