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Bug 1004516 - Add some default-disabled file logging to ActiveElementManager. r=botond

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This commit is contained in:
Kartikaya Gupta 2014-05-02 08:21:57 -04:00
parent 19bb9f870e
commit 3ac891d9ab
1 changed files with 21 additions and 1 deletions
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22
gfx/layers/apz/util/ActiveElementManager.cpp
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@ -14,6 +14,9 @@
#include "base/message_loop.h"
#include "base/task.h"
#define AEM_LOG(...)
// #define AEM_LOG(...) printf_stderr("AEM: " __VA_ARGS__)
namespace mozilla {
namespace layers {
@ -41,6 +44,7 @@ ActiveElementManager::SetTargetElement(nsIDOMEventTarget* aTarget)
{
if (mTarget) {
// Multiple fingers on screen (since HandleTouchEnd clears mTarget).
AEM_LOG("Multiple fingers on-screen, clearing target element\n");
CancelTask();
ResetActive();
ResetTouchBlockState();
@ -48,14 +52,17 @@ ActiveElementManager::SetTargetElement(nsIDOMEventTarget* aTarget)
}
mTarget = do_QueryInterface(aTarget);
AEM_LOG("Setting target element to %p\n", mTarget.get());
TriggerElementActivation();
}
void
ActiveElementManager::HandleTouchStart(bool aCanBePan)
{
AEM_LOG("Touch start, aCanBePan: %d\n", aCanBePan);
if (mCanBePanSet) {
// Multiple fingers on screen (since HandleTouchEnd clears mCanBePanSet).
AEM_LOG("Multiple fingers on-screen, clearing touch block state\n");
CancelTask();
ResetActive();
ResetTouchBlockState();
@ -87,12 +94,15 @@ ActiveElementManager::TriggerElementActivation()
this, &ActiveElementManager::SetActiveTask, mTarget);
MessageLoop::current()->PostDelayedTask(
FROM_HERE, mSetActiveTask, sActivationDelayMs);
AEM_LOG("Scheduling mSetActiveTask %p\n", mSetActiveTask);
}
}
void
ActiveElementManager::HandlePanStart()
{
AEM_LOG("Handle pan start\n");
// The user started to pan, so we don't want mTarget to be :active.
// Make it not :active, and clear any pending task to make it :active.
CancelTask();
@ -102,6 +112,8 @@ ActiveElementManager::HandlePanStart()
void
ActiveElementManager::HandleTouchEnd(bool aWasClick)
{
AEM_LOG("Touch end, aWasClick: %d\n", aWasClick);
// If the touch was a click, make mTarget :active right away.
// nsEventStateManager will reset the active element when processing
// the mouse-down event generated by the click.
@ -116,14 +128,17 @@ ActiveElementManager::HandleTouchEnd(bool aWasClick)
void
ActiveElementManager::SetActive(nsIDOMElement* aTarget)
{
AEM_LOG("Setting active %p\n", aTarget);
if (mDomUtils) {
mDomUtils->SetContentState(aTarget, NS_EVENT_STATE_ACTIVE.GetInternalValue());;
mDomUtils->SetContentState(aTarget, NS_EVENT_STATE_ACTIVE.GetInternalValue());
}
}
void
ActiveElementManager::ResetActive()
{
AEM_LOG("Resetting active from %p\n", mTarget.get());
// Clear the :active flag from mTarget by setting it on the document root.
if (mTarget) {
nsCOMPtr<nsIDOMDocument> doc;
@ -132,6 +147,7 @@ ActiveElementManager::ResetActive()
nsCOMPtr<nsIDOMElement> root;
doc->GetDocumentElement(getter_AddRefs(root));
if (root) {
AEM_LOG("Found root %p, making active\n", root.get());
SetActive(root);
}
}
@ -148,6 +164,8 @@ ActiveElementManager::ResetTouchBlockState()
void
ActiveElementManager::SetActiveTask(nsIDOMElement* aTarget)
{
AEM_LOG("mSetActiveTask %p running\n", mSetActiveTask);
// This gets called from mSetActiveTask's Run() method. The message loop
// deletes the task right after running it, so we need to null out
// mSetActiveTask to make sure we're not left with a dangling pointer.
@ -158,6 +176,8 @@ ActiveElementManager::SetActiveTask(nsIDOMElement* aTarget)
void
ActiveElementManager::CancelTask()
{
AEM_LOG("Cancelling task %p\n", mSetActiveTask);
if (mSetActiveTask) {
mSetActiveTask->Cancel();
mSetActiveTask = nullptr;