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| 1 /* | |
| 2 * Copyright (C) 2012 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 FindInPageCoordinates_h | |
| 32 #define FindInPageCoordinates_h | |
| 33 | |
| 34 #include "platform/geometry/FloatRect.h" | |
| 35 #include "web/WebExport.h" | |
| 36 | |
| 37 namespace blink { | |
| 38 class Range; | |
| 39 class LayoutObject; | |
| 40 | |
| 41 // Find-in-page coordinate conversion methods. | |
| 42 // | |
| 43 // This coordinate system is designed to give consistent tickmarks in cases | |
| 44 // where find matches are in scrollable areas but might not be visible (e.g. | |
| 45 // child frames, scroll:overflow). In these cases, using absolute positions | |
| 46 // might lead to tickmarks pointing outside the visible area of its container, | |
| 47 // which is counter-intuitive for users. | |
| 48 // | |
| 49 // Find-in-page coordinates are represented as normalized fractions of the main | |
| 50 // frame document with the property that they are built by composing the | |
| 51 // relative position of each layoutObject to the maximum effective layout size | |
| 52 // of its container all the way up the layout tree. The resulting coordinates | |
| 53 // are scroll-independent, representing any contents scaled to the visible area | |
| 54 // of their container. The provided methods support scroll:overflow and are | |
| 55 // CSS position and transform-friendly. | |
| 56 | |
| 57 WEB_EXPORT FloatRect FindInPageRectFromAbsoluteRect(const FloatRect&, | |
| 58 const LayoutObject*); | |
| 59 WEB_EXPORT FloatRect FindInPageRectFromRange(Range*); | |
| 60 | |
| 61 } // namespace blink | |
| 62 | |
| 63 #endif | |
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Chromium Code Reviews
Issue 2828493003:
Move FindInPagesCoordinates.* from web/ -> core/editing/. (Closed)
