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Fix sluggish UI during long page loads from local file or cache on WIN32 by setting plevent performance hint when there is user interaction r=rods sr=kin a=asa @173956

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kmcclusk%netscape.com 2002-10-16 02:13:48 +00:00
parent 98ccfebec8
commit 316ef47cb0
1 changed files with 25 additions and 6 deletions
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31
content/html/document/src/nsHTMLContentSink.cpp
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@ -153,6 +153,7 @@
#include "nsIFrameManager.h"
#include "nsILayoutHistoryState.h"
#include "nsIDocShellTreeItem.h"
#include "plevent.h"
#include "nsEscape.h"
@ -2860,6 +2861,12 @@ HTMLContentSink::DidBuildModel(PRInt32 aQualityLevel)
// reference.
NS_IF_RELEASE(mParser);
if (mFlags & NS_SINK_FLAG_DYNAMIC_LOWER_VALUE) {
// Reset the performance hint which was set to FALSE
// when NS_SINK_FLAG_DYNAMIC_LOWER_VALUE was set.
PL_FavorPerformanceHint(TRUE , 0);
}
if (mFlags & NS_SINK_FLAG_CAN_INTERRUPT_PARSER) {
// Note: Don't return value from RemoveDummyParserRequest,
// If RemoveDummyParserRequests fails it should not affect
@ -4114,15 +4121,27 @@ HTMLContentSink::DidProcessAToken(void)
if ((currentTime - mBeginLoadTime) > delayBeforeLoweringThreshold) {
if ((currentTime - eventTime) <
NS_STATIC_CAST(PRUint32, mDynamicIntervalSwitchThreshold)) {
// lower the dynamic values to favor application
// responsiveness over page load time.
if (! (mFlags & NS_SINK_FLAG_DYNAMIC_LOWER_VALUE)) {
// lower the dynamic values to favor application
// responsiveness over page load time.
mFlags |= NS_SINK_FLAG_DYNAMIC_LOWER_VALUE;
// Set the performance hint to prevent event starvation when
// dispatching PLEvents. This improves application responsiveness
// during page loads.
PL_FavorPerformanceHint(FALSE, 0);
}
mFlags |= NS_SINK_FLAG_DYNAMIC_LOWER_VALUE;
} else {
// raise the content notification and MaxTokenProcessing time
// to favor overall page load speed over responsiveness
if (mFlags & NS_SINK_FLAG_DYNAMIC_LOWER_VALUE) {
// raise the content notification and MaxTokenProcessing time
// to favor overall page load speed over responsiveness.
mFlags &= ~NS_SINK_FLAG_DYNAMIC_LOWER_VALUE;
// Reset the hint that to favoring performance for PLEvent dispatch.
PL_FavorPerformanceHint(TRUE, 0);
}
mFlags &= ~NS_SINK_FLAG_DYNAMIC_LOWER_VALUE;
}
}