| OLD | NEW |
|---|
| (Empty) |
| 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 | |
| 6 * are met: | |
| 7 * | |
| 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 | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * 3. Neither the name of Google Inc. nor the names of its contributors | |
| 15 * may be used to endorse or promote products derived from this | |
| 16 * 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 #include "config.h" | |
| 32 #include "core/dom/CustomElementCallbackDispatcher.h" | |
| 33 | |
| 34 #include "core/dom/CustomElementCallbackQueue.h" | |
| 35 #include "core/dom/CustomElementCallbackScheduler.h" | |
| 36 #include "wtf/MainThread.h" | |
| 37 | |
| 38 namespace WebCore { | |
| 39 | |
| 40 size_t CustomElementCallbackDispatcher::s_elementQueueStart = 0; | |
| 41 | |
| 42 // The base of the stack has a null sentinel value. | |
| 43 size_t CustomElementCallbackDispatcher::s_elementQueueEnd = kNumSentinels; | |
| 44 | |
| 45 CustomElementCallbackDispatcher& CustomElementCallbackDispatcher::instance() | |
| 46 { | |
| 47 DEFINE_STATIC_LOCAL(CustomElementCallbackDispatcher, instance, ()); | |
| 48 return instance; | |
| 49 } | |
| 50 | |
| 51 // Dispatches callbacks at microtask checkpoint. | |
| 52 bool CustomElementCallbackDispatcher::dispatch() | |
| 53 { | |
| 54 ASSERT(isMainThread()); | |
| 55 if (inCallbackDeliveryScope()) | |
| 56 return false; | |
| 57 | |
| 58 size_t start = kNumSentinels; // skip null sentinel | |
| 59 size_t end = s_elementQueueEnd; | |
| 60 ElementQueue thisQueue = currentElementQueue(); | |
| 61 | |
| 62 for (size_t i = start; i < end; i++) { | |
| 63 { | |
| 64 // The created callback may schedule entered document | |
| 65 // callbacks. | |
| 66 CallbackDeliveryScope deliveryScope; | |
| 67 m_flattenedProcessingStack[i]->processInElementQueue(thisQueue); | |
| 68 } | |
| 69 | |
| 70 ASSERT(!s_elementQueueStart); | |
| 71 ASSERT(s_elementQueueEnd == end); | |
| 72 } | |
| 73 | |
| 74 s_elementQueueEnd = kNumSentinels; | |
| 75 m_flattenedProcessingStack.resize(s_elementQueueEnd); | |
| 76 | |
| 77 CustomElementCallbackScheduler::clearElementCallbackQueueMap(); | |
| 78 | |
| 79 bool didWork = start < end; | |
| 80 return didWork; | |
| 81 } | |
| 82 | |
| 83 // Dispatches callbacks when popping the processing stack. | |
| 84 void CustomElementCallbackDispatcher::processElementQueueAndPop() | |
| 85 { | |
| 86 instance().processElementQueueAndPop(s_elementQueueStart, s_elementQueueEnd)
; | |
| 87 } | |
| 88 | |
| 89 void CustomElementCallbackDispatcher::processElementQueueAndPop(size_t start, si
ze_t end) | |
| 90 { | |
| 91 ASSERT(isMainThread()); | |
| 92 ElementQueue thisQueue = currentElementQueue(); | |
| 93 | |
| 94 for (size_t i = start; i < end; i++) { | |
| 95 { | |
| 96 // The created callback may schedule entered document | |
| 97 // callbacks. | |
| 98 CallbackDeliveryScope deliveryScope; | |
| 99 m_flattenedProcessingStack[i]->processInElementQueue(thisQueue); | |
| 100 } | |
| 101 | |
| 102 ASSERT(start == s_elementQueueStart); | |
| 103 ASSERT(end == s_elementQueueEnd); | |
| 104 } | |
| 105 | |
| 106 // Pop the element queue from the processing stack | |
| 107 m_flattenedProcessingStack.resize(start); | |
| 108 s_elementQueueEnd = start; | |
| 109 | |
| 110 if (start == kNumSentinels) | |
| 111 CustomElementCallbackScheduler::clearElementCallbackQueueMap(); | |
| 112 } | |
| 113 | |
| 114 void CustomElementCallbackDispatcher::enqueue(CustomElementCallbackQueue* callba
ckQueue) | |
| 115 { | |
| 116 if (callbackQueue->owner() == currentElementQueue()) | |
| 117 return; | |
| 118 | |
| 119 callbackQueue->setOwner(currentElementQueue()); | |
| 120 m_flattenedProcessingStack.append(callbackQueue); | |
| 121 ++s_elementQueueEnd; | |
| 122 } | |
| 123 | |
| 124 } // namespace WebCore | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 25777002:
Move custom element code to core/dom/custom/ (Closed)
Base URL: svn://svn.chromium.org/blink/trunk