1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_SMART_CLIP_H_ 32 #define THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_SMART_CLIP_H_ 33 34 #include "third_party/blink/renderer/core/core_export.h" 35 #include "third_party/blink/renderer/core/dom/node.h" 36 #include "third_party/blink/renderer/core/frame/local_frame.h" 37 #include "third_party/blink/renderer/platform/heap/handle.h" 38 39 namespace blink { 40 41 class CORE_EXPORT SmartClipData { 42 STACK_ALLOCATED(); 43 44 public: 45 SmartClipData() = default; 46 SmartClipData(const IntRect & rect,const String & string)47 SmartClipData(const IntRect& rect, const String& string) 48 : rect_in_viewport_(rect), string_(string) {} 49 RectInViewport()50 const IntRect& RectInViewport() const { return rect_in_viewport_; } ClipData()51 const String& ClipData() const { return string_; } 52 53 private: 54 IntRect rect_in_viewport_; 55 String string_; 56 }; 57 58 // SmartClip implements support for the copy operation 59 // with an S-Pen on Samsung devices. The behavior of this 60 // class is quirky and poorly tested. It's approximately 61 // trying to do an implementation of columnar selection 62 // followed by a copy operation. 63 class CORE_EXPORT SmartClip { 64 STACK_ALLOCATED(); 65 66 public: 67 explicit SmartClip(LocalFrame*); 68 69 SmartClipData DataForRect(const IntRect&); 70 71 private: 72 float PageScaleFactor(); 73 74 Node* MinNodeContainsNodes(Node* min_node, Node* new_node); 75 Node* FindBestOverlappingNode(Node*, const IntRect& crop_rect_in_viewport); 76 bool ShouldSkipBackgroundImage(Node*); 77 void CollectOverlappingChildNodes( 78 Node* parent_node, 79 const IntRect& crop_rect_in_viewport, 80 HeapVector<Member<Node>>& overlapping_node_info_table); 81 String ExtractTextFromNode(Node*); 82 83 LocalFrame* frame_; 84 }; 85 86 } // namespace blink 87 88 #endif // THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_SMART_CLIP_H_ 89