SkIDChangeListener::List Class Reference

#include <SkIDChangeListener.h>

Public Member Functions
	List ()
	~List ()
void	add (sk_sp< SkIDChangeListener > listener) SK_EXCLUDES(fMutex)
int	count () const SK_EXCLUDES(fMutex)
void	changed () SK_EXCLUDES(fMutex)
void	reset () SK_EXCLUDES(fMutex)

Detailed Description

Manages a list of SkIDChangeListeners.

Definition at line 43 of file SkIDChangeListener.h.

Constructor & Destructor Documentation

List()

List::List ( )

default

~List()

List::~List

(

)

Definition at line 29 of file SkIDChangeListener.cpp.

            {
    // We don't need the mutex. No other thread should have this list while it's being
    // destroyed.
    for (auto& listener : fListeners) {
        if (!listener->shouldDeregister()) {
            listener->changed();
        }
    }
}

Member Function Documentation

add()

void List::add

(

sk_sp< SkIDChangeListener >

listener

)

Add a new listener to the list. It must not already be deregistered. Also clears out previously deregistered listeners.

Definition at line 39 of file SkIDChangeListener.cpp.

                                                 {
    if (!listener) {
        return;
    }
    SkASSERT(!listener->shouldDeregister());
 
    SkAutoMutexExclusive lock(fMutex);
    // Clean out any stale listeners before we append the new one.
    for (int i = 0; i < fListeners.size(); ++i) {
        if (fListeners[i]->shouldDeregister()) {
            fListeners.removeShuffle(i--);  // No need to preserve the order after i.
        }
    }
    fListeners.push_back(std::move(listener));
}

changed()

void List::changed

(

)

Calls changed() on all listeners that haven't been deregistered and resets the list.

Definition at line 60 of file SkIDChangeListener.cpp.

                   {
    SkAutoMutexExclusive lock(fMutex);
    for (auto& listener : fListeners) {
        if (!listener->shouldDeregister()) {
            listener->changed();
        }
    }
    fListeners.clear();
}

count()

int List::count

(

)

const

The number of registered listeners (including deregisterd listeners that are yet-to-be removed.

Definition at line 55 of file SkIDChangeListener.cpp.

                      {
    SkAutoMutexExclusive lock(fMutex);
    return fListeners.size();
}

reset()

void List::reset

(

)

Resets without calling changed() on the listeners.

Definition at line 70 of file SkIDChangeListener.cpp.

                 {
    SkAutoMutexExclusive lock(fMutex);
    fListeners.clear();
}

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The documentation for this class was generated from the following files:

• third_party/skia/include/private/SkIDChangeListener.h
• third_party/skia/src/core/SkIDChangeListener.cpp