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| 1 /* | |
| 2 * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved. | |
| 3 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 #include "platform/FrameViewBase.h" | |
| 28 | |
| 29 #include "platform/wtf/Assertions.h" | |
| 30 | |
| 31 namespace blink { | |
| 32 | |
| 33 FrameViewBase::FrameViewBase() | |
| 34 : parent_(nullptr), self_visible_(false), parent_visible_(false) {} | |
| 35 | |
| 36 FrameViewBase::~FrameViewBase() {} | |
| 37 | |
| 38 DEFINE_TRACE(FrameViewBase) { | |
| 39 visitor->Trace(parent_); | |
| 40 } | |
| 41 | |
| 42 void FrameViewBase::SetParent(FrameViewBase* frame_view_base) { | |
| 43 DCHECK(!frame_view_base || !parent_); | |
| 44 if (!frame_view_base || !frame_view_base->IsVisible()) | |
| 45 SetParentVisible(false); | |
| 46 parent_ = frame_view_base; | |
| 47 if (frame_view_base && frame_view_base->IsVisible()) | |
| 48 SetParentVisible(true); | |
| 49 } | |
| 50 | |
| 51 FrameViewBase* FrameViewBase::Root() const { | |
| 52 const FrameViewBase* top = this; | |
| 53 while (top->Parent()) | |
| 54 top = top->Parent(); | |
| 55 if (top->IsFrameView()) | |
| 56 return const_cast<FrameViewBase*>(static_cast<const FrameViewBase*>(top)); | |
| 57 return 0; | |
| 58 } | |
| 59 | |
| 60 IntRect FrameViewBase::ConvertFromRootFrame( | |
| 61 const IntRect& rect_in_root_frame) const { | |
| 62 if (const FrameViewBase* parent_frame_view_base = Parent()) { | |
| 63 IntRect parent_rect = | |
| 64 parent_frame_view_base->ConvertFromRootFrame(rect_in_root_frame); | |
| 65 return ConvertFromContainingFrameViewBase(parent_rect); | |
| 66 } | |
| 67 return rect_in_root_frame; | |
| 68 } | |
| 69 | |
| 70 IntPoint FrameViewBase::ConvertFromRootFrame( | |
| 71 const IntPoint& point_in_root_frame) const { | |
| 72 if (const FrameViewBase* parent_frame_view_base = Parent()) { | |
| 73 IntPoint parent_point = | |
| 74 parent_frame_view_base->ConvertFromRootFrame(point_in_root_frame); | |
| 75 return ConvertFromContainingFrameViewBase(parent_point); | |
| 76 } | |
| 77 return point_in_root_frame; | |
| 78 } | |
| 79 | |
| 80 FloatPoint FrameViewBase::ConvertFromRootFrame( | |
| 81 const FloatPoint& point_in_root_frame) const { | |
| 82 // FrameViewBase / windows are required to be IntPoint aligned, but we may | |
| 83 // need to convert FloatPoint values within them (eg. for event co-ordinates). | |
| 84 IntPoint floored_point = FlooredIntPoint(point_in_root_frame); | |
| 85 FloatPoint parent_point = ConvertFromRootFrame(floored_point); | |
| 86 FloatSize window_fraction = point_in_root_frame - floored_point; | |
| 87 // Use linear interpolation handle any fractional value (eg. for iframes | |
| 88 // subject to a transform beyond just a simple translation). | |
| 89 // FIXME: Add FloatPoint variants of all co-ordinate space conversion APIs. | |
| 90 if (!window_fraction.IsEmpty()) { | |
| 91 const int kFactor = 1000; | |
| 92 IntPoint parent_line_end = ConvertFromRootFrame( | |
| 93 floored_point + RoundedIntSize(window_fraction.ScaledBy(kFactor))); | |
| 94 FloatSize parent_fraction = | |
| 95 (parent_line_end - parent_point).ScaledBy(1.0f / kFactor); | |
| 96 parent_point.Move(parent_fraction); | |
| 97 } | |
| 98 return parent_point; | |
| 99 } | |
| 100 | |
| 101 } // namespace blink | |
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Chromium Code Reviews
Issue 2843693003:
Move methods from FrameViewBase to FrameView. (Closed)
