| /* |
| * Copyright (C) 2012 Google 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 "public/web/WebSurroundingText.h" |
| |
| #include "core/dom/Element.h" |
| #include "core/dom/Node.h" |
| #include "core/dom/Range.h" |
| #include "core/dom/Text.h" |
| #include "core/editing/FrameSelection.h" |
| #include "core/editing/SurroundingText.h" |
| #include "core/editing/VisiblePosition.h" |
| #include "core/layout/LayoutObject.h" |
| #include "public/platform/WebPoint.h" |
| #include "public/web/WebHitTestResult.h" |
| #include "web/WebLocalFrameImpl.h" |
| |
| namespace blink { |
| |
| WebSurroundingText::WebSurroundingText() {} |
| |
| WebSurroundingText::~WebSurroundingText() {} |
| |
| void WebSurroundingText::initialize(const WebNode& webNode, |
| const WebPoint& nodePoint, |
| size_t maxLength) { |
| const Node* node = webNode.constUnwrap<Node>(); |
| if (!node) |
| return; |
| |
| // VisiblePosition and SurroundingText must be created with clean layout. |
| node->document().updateStyleAndLayoutIgnorePendingStylesheets(); |
| DocumentLifecycle::DisallowTransitionScope disallowTransition( |
| node->document().lifecycle()); |
| |
| if (!node->layoutObject()) |
| return; |
| |
| m_private.reset(new SurroundingText( |
| createVisiblePosition(node->layoutObject()->positionForPoint( |
| static_cast<IntPoint>(nodePoint))) |
| .deepEquivalent() |
| .parentAnchoredEquivalent(), |
| maxLength)); |
| } |
| |
| void WebSurroundingText::initializeFromCurrentSelection(WebLocalFrame* frame, |
| size_t maxLength) { |
| LocalFrame* webFrame = toWebLocalFrameImpl(frame)->frame(); |
| if (Range* range = createRange( |
| webFrame->selection().selection().toNormalizedEphemeralRange())) |
| m_private.reset(new SurroundingText(*range, maxLength)); |
| } |
| |
| WebString WebSurroundingText::textContent() const { |
| return m_private->content(); |
| } |
| |
| size_t WebSurroundingText::hitOffsetInTextContent() const { |
| DCHECK_EQ(m_private->startOffsetInContent(), m_private->endOffsetInContent()); |
| return m_private->startOffsetInContent(); |
| } |
| |
| size_t WebSurroundingText::startOffsetInTextContent() const { |
| return m_private->startOffsetInContent(); |
| } |
| |
| size_t WebSurroundingText::endOffsetInTextContent() const { |
| return m_private->endOffsetInContent(); |
| } |
| |
| bool WebSurroundingText::isNull() const { |
| return !m_private.get(); |
| } |
| |
| } // namespace blink |