Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Adobe Systems Incorporated. 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 |
| 6 | * are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above |
| 12 | * copyright notice, this list of conditions and the following |
| 13 | * disclaimer in the documentation and/or other materials |
| 14 | * provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY |
| 17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE |
| 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| 21 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 23 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
| 25 | * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF |
| 26 | * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #ifndef NamedFlow_h |
| 31 | #define NamedFlow_h |
| 32 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 33 | #include "bindings/v8/ScriptWrappable.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 34 | #include "core/dom/EventTarget.h" |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 35 | #include "wtf/RefCounted.h" |
| 36 | #include "wtf/RefPtr.h" |
| 37 | #include "wtf/text/AtomicString.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 38 | |
| 39 | namespace WebCore { |
| 40 | |
| 41 | class Document; |
| 42 | class NamedFlowCollection; |
| 43 | class Node; |
| 44 | class NodeList; |
| 45 | class RenderNamedFlowThread; |
| 46 | class ScriptExecutionContext; |
| 47 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 48 | class NamedFlow : public RefCounted<NamedFlow>, public ScriptWrappable, public EventTarget { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 49 | public: |
| 50 | static PassRefPtr<NamedFlow> create(PassRefPtr<NamedFlowCollection> manager, const AtomicString& flowThreadName); |
| 51 | |
| 52 | ~NamedFlow(); |
| 53 | |
| 54 | const AtomicString& name() const; |
| 55 | bool overset() const; |
| 56 | int firstEmptyRegionIndex() const; |
| 57 | PassRefPtr<NodeList> getRegionsByContent(Node*); |
| 58 | PassRefPtr<NodeList> getRegions(); |
| 59 | PassRefPtr<NodeList> getContent(); |
| 60 | |
| 61 | using RefCounted<NamedFlow>::ref; |
| 62 | using RefCounted<NamedFlow>::deref; |
| 63 | |
| 64 | virtual const AtomicString& interfaceName() const; |
| 65 | virtual ScriptExecutionContext* scriptExecutionContext() const; |
| 66 | |
| 67 | // This function is called from the JS binding code to determine if the NamedFlow object is reachable or not. |
| 68 | // If the object has listeners, the object should only be discarded if the parent Document is not reachable. |
| 69 | Node* ownerNode() const; |
| 70 | |
| 71 | void setRenderer(RenderNamedFlowThread* parentFlowThread); |
| 72 | |
| 73 | enum FlowState { |
| 74 | FlowStateCreated, |
| 75 | FlowStateNull |
| 76 | }; |
| 77 | |
| 78 | FlowState flowState() const { return m_parentFlowThread ? FlowStateCreated : FlowStateNull; } |
| 79 | |
| 80 | void dispatchRegionLayoutUpdateEvent(); |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 81 | void dispatchRegionOversetChangeEvent(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 82 | |
| 83 | private: |
| 84 | NamedFlow(PassRefPtr<NamedFlowCollection>, const AtomicString&); |
| 85 | |
| 86 | // EventTarget implementation. |
| 87 | virtual void refEventTarget() { ref(); } |
| 88 | virtual void derefEventTarget() { deref(); } |
| 89 | |
| 90 | virtual EventTargetData* eventTargetData() OVERRIDE; |
| 91 | virtual EventTargetData* ensureEventTargetData() OVERRIDE; |
| 92 | |
| 93 | // The name of the flow thread as specified in CSS. |
| 94 | AtomicString m_flowThreadName; |
| 95 | |
| 96 | RefPtr<NamedFlowCollection> m_flowManager; |
| 97 | RenderNamedFlowThread* m_parentFlowThread; |
| 98 | |
| 99 | EventTargetData m_eventTargetData; |
| 100 | }; |
| 101 | |
| 102 | } |
| 103 | |
| 104 | #endif |