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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef LayoutPagedFlowThread_h | 5 #ifndef LayoutPagedFlowThread_h |
6 #define LayoutPagedFlowThread_h | 6 #define LayoutPagedFlowThread_h |
7 | 7 |
8 #include "core/layout/LayoutMultiColumnFlowThread.h" | 8 #include "core/layout/LayoutMultiColumnFlowThread.h" |
9 | 9 |
10 namespace blink { | 10 namespace blink { |
11 | 11 |
12 // A flow thread for paged overflow. FIXME: The current implementation relies on
the multicol | 12 // A flow thread for paged overflow. FIXME: The current implementation relies on
the multicol |
13 // implementation, but it in the long run it would be better to have what's comm
on between | 13 // implementation, but it in the long run it would be better to have what's comm
on between |
14 // LayoutMultiColumnFlowThread and LayoutPagedFlowThread in LayoutFlowThread, an
d have both of them | 14 // LayoutMultiColumnFlowThread and LayoutPagedFlowThread in LayoutFlowThread, an
d have both of them |
15 // inherit from that one. | 15 // inherit from that one. |
16 class LayoutPagedFlowThread : public LayoutMultiColumnFlowThread { | 16 class LayoutPagedFlowThread : public LayoutMultiColumnFlowThread { |
17 public: | 17 public: |
18 static LayoutPagedFlowThread* createAnonymous(Document&, const ComputedStyle
& parentStyle); | 18 static LayoutPagedFlowThread* createAnonymous(Document&, const ComputedStyle
& parentStyle); |
19 | 19 |
20 LayoutBlockFlow* pagedBlockFlow() const { return toLayoutBlockFlow(parent())
; } | 20 LayoutBlockFlow* pagedBlockFlow() const { return toLayoutBlockFlow(parent())
; } |
21 | 21 |
22 // Return the number of pages. Will never be less than 1. | 22 // Return the number of pages. Will never be less than 1. |
23 int pageCount(); | 23 int pageCount(); |
24 | 24 |
25 virtual bool isLayoutPagedFlowThread() const override { return true; } | 25 bool isLayoutPagedFlowThread() const override { return true; } |
26 virtual const char* name() const override { return "LayoutPagedFlowThread";
} | 26 const char* name() const override { return "LayoutPagedFlowThread"; } |
27 virtual bool needsNewWidth() const override; | 27 bool needsNewWidth() const override; |
28 virtual void updateLogicalWidth() override; | 28 void updateLogicalWidth() override; |
29 virtual void layout(); | 29 virtual void layout(); |
30 | 30 |
31 private: | 31 private: |
32 virtual bool descendantIsValidColumnSpanner(LayoutObject* /*descendant*/) co
nst override { return false; } | 32 bool descendantIsValidColumnSpanner(LayoutObject* /*descendant*/) const over
ride { return false; } |
33 }; | 33 }; |
34 | 34 |
35 } // namespace blink | 35 } // namespace blink |
36 | 36 |
37 #endif // LayoutPagedFlowThread_h | 37 #endif // LayoutPagedFlowThread_h |
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