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-rw-r--r--WebCore/loader/ProgressTracker.cpp253
1 files changed, 0 insertions, 253 deletions
diff --git a/WebCore/loader/ProgressTracker.cpp b/WebCore/loader/ProgressTracker.cpp
deleted file mode 100644
index 56aa976..0000000
--- a/WebCore/loader/ProgressTracker.cpp
+++ /dev/null
@@ -1,253 +0,0 @@
-/*
- * Copyright (C) 2007 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "ProgressTracker.h"
-
-#include "Frame.h"
-#include "FrameLoader.h"
-#include "FrameLoaderClient.h"
-#include "ResourceResponse.h"
-#include "SystemTime.h"
-
-using std::min;
-
-namespace WebCore {
-
-// Always start progress at initialProgressValue. This helps provide feedback as
-// soon as a load starts.
-static const double initialProgressValue = 0.1;
-
-// Similarly, always leave space at the end. This helps show the user that we're not done
-// until we're done.
-static const double finalProgressValue = 0.9; // 1.0 - initialProgressValue
-
-static const int progressItemDefaultEstimatedLength = 1024 * 16;
-
-struct ProgressItem {
- ProgressItem(long long length)
- : bytesReceived(0)
- , estimatedLength(length) { }
-
- long long bytesReceived;
- long long estimatedLength;
-};
-
-ProgressTracker::ProgressTracker()
- : m_uniqueIdentifier(0)
- , m_totalPageAndResourceBytesToLoad(0)
- , m_totalBytesReceived(0)
- , m_lastNotifiedProgressValue(0)
- , m_lastNotifiedProgressTime(0)
- , m_progressNotificationInterval(0.02)
- , m_progressNotificationTimeInterval(0.1)
- , m_finalProgressChangedSent(false)
- , m_progressValue(0)
- , m_numProgressTrackedFrames(0)
-{
-}
-
-ProgressTracker::~ProgressTracker()
-{
- deleteAllValues(m_progressItems);
-}
-
-double ProgressTracker::estimatedProgress() const
-{
- return m_progressValue;
-}
-
-void ProgressTracker::reset()
-{
- deleteAllValues(m_progressItems);
- m_progressItems.clear();
-
- m_totalPageAndResourceBytesToLoad = 0;
- m_totalBytesReceived = 0;
- m_progressValue = 0;
- m_lastNotifiedProgressValue = 0;
- m_lastNotifiedProgressTime = 0;
- m_finalProgressChangedSent = false;
- m_numProgressTrackedFrames = 0;
- m_originatingProgressFrame = 0;
-}
-
-void ProgressTracker::progressStarted(Frame* frame)
-{
- // LOG (Progress, "frame %p(%@), _private->numProgressTrackedFrames %d, _private->originatingProgressFrame %p", frame, [frame name], _private->numProgressTrackedFrames, _private->originatingProgressFrame);
-
- frame->loader()->client()->willChangeEstimatedProgress();
-
- if (m_numProgressTrackedFrames == 0 || m_originatingProgressFrame == frame) {
- reset();
- m_progressValue = initialProgressValue;
- m_originatingProgressFrame = frame;
-
- m_originatingProgressFrame->loader()->client()->postProgressStartedNotification();
- }
- m_numProgressTrackedFrames++;
-
- frame->loader()->client()->didChangeEstimatedProgress();
-}
-
-void ProgressTracker::progressCompleted(Frame* frame)
-{
- // LOG (Progress, "frame %p(%@), _private->numProgressTrackedFrames %d, _private->originatingProgressFrame %p", frame, [frame name], _private->numProgressTrackedFrames, _private->originatingProgressFrame);
-
- if (m_numProgressTrackedFrames <= 0)
- return;
-
- frame->loader()->client()->willChangeEstimatedProgress();
-
- m_numProgressTrackedFrames--;
- if (m_numProgressTrackedFrames == 0 ||
- (frame == m_originatingProgressFrame && m_numProgressTrackedFrames != 0))
- finalProgressComplete();
-
- frame->loader()->client()->didChangeEstimatedProgress();
-}
-
-void ProgressTracker::finalProgressComplete()
-{
- // LOG (Progress, "");
-
- RefPtr<Frame> frame = m_originatingProgressFrame.release();
-
- // Before resetting progress value be sure to send client a least one notification
- // with final progress value.
- if (!m_finalProgressChangedSent) {
- m_progressValue = 1;
- frame->loader()->client()->postProgressEstimateChangedNotification();
- }
-
- reset();
-
- frame->loader()->client()->setMainFrameDocumentReady(true);
- frame->loader()->client()->postProgressFinishedNotification();
-}
-
-void ProgressTracker::incrementProgress(unsigned long identifier, const ResourceResponse& response)
-{
- // LOG (Progress, "_private->numProgressTrackedFrames %d, _private->originatingProgressFrame %p", _private->numProgressTrackedFrames, _private->originatingProgressFrame);
-
- if (m_numProgressTrackedFrames <= 0)
- return;
-
- long long estimatedLength = response.expectedContentLength();
- if (estimatedLength < 0)
- estimatedLength = progressItemDefaultEstimatedLength;
-
- m_totalPageAndResourceBytesToLoad += estimatedLength;
-
- if (ProgressItem* item = m_progressItems.get(identifier)) {
- item->bytesReceived = 0;
- item->estimatedLength = estimatedLength;
- } else
- m_progressItems.set(identifier, new ProgressItem(estimatedLength));
-}
-
-void ProgressTracker::incrementProgress(unsigned long identifier, const char*, int length)
-{
- ProgressItem* item = m_progressItems.get(identifier);
-
- // FIXME: Can this ever happen?
- if (!item)
- return;
-
- m_originatingProgressFrame->loader()->client()->willChangeEstimatedProgress();
-
- unsigned bytesReceived = length;
- double increment, percentOfRemainingBytes;
- long long remainingBytes, estimatedBytesForPendingRequests;
-
- item->bytesReceived += bytesReceived;
- if (item->bytesReceived > item->estimatedLength) {
- m_totalPageAndResourceBytesToLoad += ((item->bytesReceived * 2) - item->estimatedLength);
- item->estimatedLength = item->bytesReceived * 2;
- }
-
- int numPendingOrLoadingRequests = m_originatingProgressFrame->loader()->numPendingOrLoadingRequests(true);
- estimatedBytesForPendingRequests = progressItemDefaultEstimatedLength * numPendingOrLoadingRequests;
- remainingBytes = ((m_totalPageAndResourceBytesToLoad + estimatedBytesForPendingRequests) - m_totalBytesReceived);
- if (remainingBytes > 0) // Prevent divide by 0.
- percentOfRemainingBytes = (double)bytesReceived / (double)remainingBytes;
- else
- percentOfRemainingBytes = 1.0;
-
- // Treat the first layout as the half-way point.
- double maxProgressValue = m_originatingProgressFrame->loader()->firstLayoutDone() ? finalProgressValue : .5;
- increment = (maxProgressValue - m_progressValue) * percentOfRemainingBytes;
- m_progressValue += increment;
- m_progressValue = min(m_progressValue, maxProgressValue);
- ASSERT(m_progressValue >= initialProgressValue);
-
- m_totalBytesReceived += bytesReceived;
-
- double now = currentTime();
- double notifiedProgressTimeDelta = now - m_lastNotifiedProgressTime;
-
- // LOG (Progress, "_private->progressValue %g, _private->numProgressTrackedFrames %d", _private->progressValue, _private->numProgressTrackedFrames);
- double notificationProgressDelta = m_progressValue - m_lastNotifiedProgressValue;
- if ((notificationProgressDelta >= m_progressNotificationInterval ||
- notifiedProgressTimeDelta >= m_progressNotificationTimeInterval) &&
- m_numProgressTrackedFrames > 0) {
- if (!m_finalProgressChangedSent) {
- if (m_progressValue == 1)
- m_finalProgressChangedSent = true;
-
- m_originatingProgressFrame->loader()->client()->postProgressEstimateChangedNotification();
-
- m_lastNotifiedProgressValue = m_progressValue;
- m_lastNotifiedProgressTime = now;
- }
- }
-
- m_originatingProgressFrame->loader()->client()->didChangeEstimatedProgress();
-}
-
-void ProgressTracker::completeProgress(unsigned long identifier)
-{
- ProgressItem* item = m_progressItems.get(identifier);
-
- // FIXME: Can this happen?
- if (!item)
- return;
-
- // Adjust the total expected bytes to account for any overage/underage.
- long long delta = item->bytesReceived - item->estimatedLength;
- m_totalPageAndResourceBytesToLoad += delta;
- item->estimatedLength = item->bytesReceived;
-
- m_progressItems.remove(identifier);
- delete item;
-}
-
-unsigned long ProgressTracker::createUniqueIdentifier()
-{
- return ++m_uniqueIdentifier;
-}
-
-
-}
generated by cgit v1.1 at 2024-09-04 10:15:38 +0000