Java Code Examples for org.chromium.base.ThreadUtils#postOnUiThreadDelayed()

/**
 * Handle all necessary tasks that can be delayed until initialization completes.
 * @param activityCreationTimeMs The time of creation for the activity this toolbar belongs to.
 * @param activityName Simple class name for the activity this toolbar belongs to.
 */
public void onDeferredStartup(final long activityCreationTimeMs,
        final String activityName) {
    // Record startup performance statistics
    long elapsedTime = SystemClock.elapsedRealtime() - activityCreationTimeMs;
    if (elapsedTime < RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS) {
        ThreadUtils.postOnUiThreadDelayed(new Runnable() {
            @Override
            public void run() {
                onDeferredStartup(activityCreationTimeMs, activityName);
            }
        }, RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS - elapsedTime);
    }
    RecordHistogram.recordTimesHistogram("MobileStartup.ToolbarFirstDrawTime." + activityName,
            mToolbar.getFirstDrawTime() - activityCreationTimeMs, TimeUnit.MILLISECONDS);

    long firstFocusTime = mToolbar.getLocationBar().getFirstUrlBarFocusTime();
    if (firstFocusTime != 0) {
        RecordHistogram.recordCustomTimesHistogram(
                "MobileStartup.ToolbarFirstFocusTime." + activityName,
                firstFocusTime - activityCreationTimeMs, MIN_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS,
                MAX_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS, TimeUnit.MILLISECONDS, 50);
    }
}
 

@Override
public void startAccurateListening() {
    ++mAccurateCount;

    if (mAccurateCount > 1) return;

    // Start polling if we went from 0 to 1. The polling will
    // automatically stop when mAccurateCount reaches 0.
    final DisplayListenerAPI16 self = this;
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            self.onConfigurationChanged(null);

            if (self.mAccurateCount < 1) return;

            ThreadUtils.postOnUiThreadDelayed(this,
                    DisplayListenerAPI16.POLLING_DELAY);
        }
    }, POLLING_DELAY);
}
 

/**
 * Handle all necessary tasks that can be delayed until initialization completes.
 * @param activityCreationTimeMs The time of creation for the activity this toolbar belongs to.
 * @param activityName Simple class name for the activity this toolbar belongs to.
 */
public void onDeferredStartup(final long activityCreationTimeMs,
        final String activityName) {
    // Record startup performance statistics
    long elapsedTime = SystemClock.elapsedRealtime() - activityCreationTimeMs;
    if (elapsedTime < RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS) {
        ThreadUtils.postOnUiThreadDelayed(new Runnable() {
            @Override
            public void run() {
                onDeferredStartup(activityCreationTimeMs, activityName);
            }
        }, RECORD_UMA_PERFORMANCE_METRICS_DELAY_MS - elapsedTime);
    }
    RecordHistogram.recordTimesHistogram("MobileStartup.ToolbarFirstDrawTime." + activityName,
            mToolbar.getFirstDrawTime() - activityCreationTimeMs, TimeUnit.MILLISECONDS);

    long firstFocusTime = mToolbar.getLocationBar().getFirstUrlBarFocusTime();
    if (firstFocusTime != 0) {
        RecordHistogram.recordCustomTimesHistogram(
                "MobileStartup.ToolbarFirstFocusTime." + activityName,
                firstFocusTime - activityCreationTimeMs, MIN_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS,
                MAX_FOCUS_TIME_FOR_UMA_HISTOGRAM_MS, TimeUnit.MILLISECONDS, 50);
    }
}
 

@Override
public void setTitleToPageTitle() {
    Tab currentTab = getToolbarDataProvider().getTab();
    if (currentTab == null || TextUtils.isEmpty(currentTab.getTitle())) {
        mTitleBar.setText("");
        return;
    }
    String title = currentTab.getTitle();

    // It takes some time to parse the title of the webcontent, and before that Tab#getTitle
    // always return the url. We postpone the title animation until the title is authentic.
    if ((mState == STATE_DOMAIN_AND_TITLE || mState == STATE_TITLE_ONLY)
            && !title.equals(currentTab.getUrl())
            && !title.equals(ContentUrlConstants.ABOUT_BLANK_DISPLAY_URL)) {
        // Delay the title animation until security icon animation finishes.
        ThreadUtils.postOnUiThreadDelayed(mTitleAnimationStarter, TITLE_ANIM_DELAY_MS);
    }

    mTitleBar.setText(title);
}
 

/**
 * Finishes the activity and removes the reference from the Android recents.
 *
 * @param reparenting true iff the activity finishes due to tab reparenting.
 */
public final void finishAndClose(boolean reparenting) {
    if (mIsClosing) return;
    mIsClosing = true;
    if (!reparenting) {
        // Closing the activity destroys the renderer as well. Re-create a spare renderer some
        // time after, so that we have one ready for the next tab open. This does not increase
        // memory consumption, as the current renderer goes away. We create a renderer as a lot
        // of users open several Custom Tabs in a row. The delay is there to avoid jank in the
        // transition animation when closing the tab.
        ThreadUtils.postOnUiThreadDelayed(new Runnable() {
            @Override
            public void run() {
                WarmupManager.getInstance().createSpareWebContents();
            }
        }, 500);
    }

    handleFinishAndClose();
}
 

private void captureNavigationInfo(final Tab tab) {
    if (mCustomTabsConnection == null) return;
    if (!mCustomTabsConnection.shouldSendNavigationInfoForSession(mSession)) return;

    final ContentBitmapCallback callback = new ContentBitmapCallback() {
        @Override
        public void onFinishGetBitmap(Bitmap bitmap, int response) {
            if (TextUtils.isEmpty(tab.getTitle()) && bitmap == null) return;
            mCustomTabsConnection.sendNavigationInfo(
                    mSession, tab.getUrl(), tab.getTitle(), bitmap);
        }
    };
    // Delay screenshot capture since the page might be doing post load tasks. And this also
    // gives time to get rid of any redirects and avoid capturing screenshots for those.
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            if (!tab.isHidden() && mCurrentState != STATE_RESET) return;
            if (tab.getWebContents() == null) return;
            tab.getWebContents().getContentBitmapAsync(
                    mContentBitmapWidth, mContentBitmapHeight, callback);
            mScreenshotTakenForCurrentNavigation = true;
        }
    }, 1000);
}
 

@Override
public void setTitleToPageTitle() {
    Tab currentTab = getToolbarDataProvider().getTab();
    if (currentTab == null || TextUtils.isEmpty(currentTab.getTitle())) {
        mTitleBar.setText("");
        return;
    }
    String title = currentTab.getTitle();

    // It takes some time to parse the title of the webcontent, and before that Tab#getTitle
    // always return the url. We postpone the title animation until the title is authentic.
    if ((mState == STATE_DOMAIN_AND_TITLE || mState == STATE_TITLE_ONLY)
            && !title.equals(currentTab.getUrl())
            && !title.equals(UrlConstants.ABOUT_BLANK)) {
        // Delay the title animation until security icon animation finishes.
        ThreadUtils.postOnUiThreadDelayed(mTitleAnimationStarter, TITLE_ANIM_DELAY_MS);
    }

    mTitleBar.setText(title);
}
 

/**
 * Finishes the activity and removes the reference from the Android recents.
 *
 * @param reparenting true iff the activity finishes due to tab reparenting.
 */
public final void finishAndClose(boolean reparenting) {
    mIsClosing = true;
    if (!reparenting) {
        // Closing the activity destroys the renderer as well. Re-create a spare renderer some
        // time after, so that we have one ready for the next tab open. This does not increase
        // memory consumption, as the current renderer goes away. We create a renderer as a lot
        // of users open several Custom Tabs in a row. The delay is there to avoid jank in the
        // transition animation when closing the tab.
        ThreadUtils.postOnUiThreadDelayed(new Runnable() {
            @Override
            public void run() {
                WarmupManager.getInstance().createSpareWebContents();
            }
        }, 500);
    }

    handleFinishAndClose();
}
 

private void captureNavigationInfo(final Tab tab) {
    if (mCustomTabsConnection == null) return;
    if (!mCustomTabsConnection.shouldSendNavigationInfoForSession(mSession)) return;

    final ContentBitmapCallback callback = new ContentBitmapCallback() {
        @Override
        public void onFinishGetBitmap(Bitmap bitmap, int response) {
            if (TextUtils.isEmpty(tab.getTitle()) && bitmap == null) return;
            mCustomTabsConnection.sendNavigationInfo(
                    mSession, tab.getUrl(), tab.getTitle(), bitmap);
        }
    };
    // Delay screenshot capture since the page might be doing post load tasks. And this also
    // gives time to get rid of any redirects and avoid capturing screenshots for those.
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            if (!tab.isHidden() && mCurrentState != STATE_RESET) return;
            if (tab.getWebContents() == null) return;
            tab.getWebContents().getContentBitmapAsync(
                    Bitmap.Config.ARGB_8888, mScaleForNavigationInfo, new Rect(), callback);
            mScreenshotTakenForCurrentNavigation = true;
        }
    }, 1000);
}
 

@Override
public void onActivityStateChange(Activity activity, int newState) {
    if (newState == ActivityState.STOPPED) {
        // Exit fullscreen in onStop to ensure the system UI flags are set correctly when
        // showing again (on JB MR2+ builds, the omnibox would be covered by the
        // notification bar when this was done in onStart()).
        setPersistentFullscreenMode(false);
    } else if (newState == ActivityState.STARTED) {
        ThreadUtils.postOnUiThreadDelayed(new Runnable() {
            @Override
            public void run() {
                mBrowserVisibilityDelegate.showControlsTransient();
            }
        }, ACTIVITY_RETURN_SHOW_REQUEST_DELAY_MS);
    } else if (newState == ActivityState.DESTROYED) {
        ApplicationStatus.unregisterActivityStateListener(this);
        ((BaseChromiumApplication) mWindow.getContext().getApplicationContext())
                .unregisterWindowFocusChangedListener(this);

        mTabModelObserver.destroy();
    }
}
 

/**
 * Remove the initial binding of the child process. Child processes are bound with initial
 * binding to protect them from getting killed before they are put to use. This method
 * allows to remove the binding once it is no longer needed. The binding is removed after a
 * fixed delay period so that the renderer will not be killed immediately after the call.
 */
void removeInitialBinding(final int pid) {
    final ChildProcessConnection connection = sServiceMap.get(pid);
    if (connection == null) {
        LogPidWarning(pid, "Tried to remove a binding for a non-existent connection");
        return;
    }
    if (!connection.isInitialBindingBound()) return;
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            synchronized (mCountLock) {
                if (connection.isInitialBindingBound()) {
                    decrementOomCount(pid);
                    connection.removeInitialBinding();
                }
            }
        }
    }, REMOVE_INITIAL_BINDING_DELAY_MILLIS);
}
 

/**
 * Remove the initial binding of the child process. Child processes are bound with initial
 * binding to protect them from getting killed before they are put to use. This method
 * allows to remove the binding once it is no longer needed. The binding is removed after a
 * fixed delay period so that the renderer will not be killed immediately after the call.
 */
void removeInitialBinding(final int pid) {
    final ChildProcessConnection connection = sServiceMap.get(pid);
    if (connection == null) {
        LogPidWarning(pid, "Tried to remove a binding for a non-existent connection");
        return;
    }
    if (!connection.isInitialBindingBound()) return;
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            synchronized (mCountLock) {
                if (connection.isInitialBindingBound()) {
                    decrementOomCount(pid);
                    connection.removeInitialBinding();
                }
            }
        }
    }, REMOVE_INITIAL_BINDING_DELAY_MILLIS);
}
 

/**
 * Sets a callback that will be executed when the initialization is done.
 *
 * @param callback  This is called when the initialization is done.
 * @param timeoutMs If initializing takes more than this time since this function is called,
 *                  force run |callback| early. The unit is ms.
 */
public static void setOnInitializeAsyncFinished(final Runnable callback, long timeoutMs) {
    sInitializeAsyncCallbacks.add(callback);

    ThreadUtils.postOnUiThreadDelayed(
            new Runnable() {
                @Override
                public void run() {
                    if (sInitializeAsyncCallbacks.remove(callback)) callback.run();
                }
            },
            sIsInitialized ? 0 : timeoutMs);
}
 

/**
 * Sets a callback that will be executed when the initialization is done.
 *
 * @param callback  This is called when the initialization is done.
 * @param timeoutMs If initializing takes more than this time since this function is called,
 *                  force run |callback| early. The unit is ms.
 */
public static void setOnInitializeAsyncFinished(final Runnable callback, long timeoutMs) {
    sInitializeAsyncCallbacks.add(callback);

    ThreadUtils.postOnUiThreadDelayed(
            new Runnable() {
                @Override
                public void run() {
                    if (sInitializeAsyncCallbacks.remove(callback)) callback.run();
                }
            },
            sIsInitialized ? 0 : timeoutMs);
}
 

private void postTimeoutTask() {
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            maybePostResult();
        }
    }, TIMEOUT_MS);
}
 

/**
 * Unbind a high priority process which was previous bound with bindAsHighPriority.
 * @param pid The process handle of the service.
 */
void unbindAsHighPriority(final int pid) {
    final ChildProcessConnection connection = sServiceMap.get(pid);
    if (connection == null) {
        LogPidWarning(pid, "Tried to unbind non-existent connection");
        return;
    }
    if (!connection.isStrongBindingBound()) return;

    // This runnable performs the actual unbinding. It will be executed synchronously when
    // on low-end devices and posted with a delay otherwise.
    Runnable doUnbind = new Runnable() {
        @Override
        public void run() {
            synchronized (mCountLock) {
                if (connection.isStrongBindingBound()) {
                    decrementOomCount(pid);
                    connection.detachAsActive();
                }
            }
        }
    };

    if (SysUtils.isLowEndDevice()) {
        doUnbind.run();
    } else {
        ThreadUtils.postOnUiThreadDelayed(doUnbind, DETACH_AS_ACTIVE_HIGH_END_DELAY_MILLIS);
    }
}
 

private void postTimeoutTask() {
    ThreadUtils.postOnUiThreadDelayed(new Runnable() {
        @Override
        public void run() {
            maybePostResult();
        }
    }, TIMEOUT_MS);
}
 

/**
 * Sets a callback that will be executed when the initialization is done.
 *
 * @param callback  This is called when the initialization is done.
 * @param timeoutMs If initializing takes more than this time since this function is called,
 *                  force run |callback| early. The unit is ms.
 */
public static void setOnInitializeAsyncFinished(final Runnable callback, long timeoutMs) {
    sInitializeAsyncCallbacks.add(callback);

    ThreadUtils.postOnUiThreadDelayed(
            new Runnable() {
                @Override
                public void run() {
                    if (sInitializeAsyncCallbacks.remove(callback)) callback.run();
                }
            },
            sIsInitialized ? 0 : timeoutMs);
}
 

/**
 * Unbind a high priority process which was previous bound with bindAsHighPriority.
 * @param pid The process handle of the service.
 */
void unbindAsHighPriority(final int pid) {
    final ChildProcessConnection connection = sServiceMap.get(pid);
    if (connection == null) {
        LogPidWarning(pid, "Tried to unbind non-existent connection");
        return;
    }
    if (!connection.isStrongBindingBound()) return;

    // This runnable performs the actual unbinding. It will be executed synchronously when
    // on low-end devices and posted with a delay otherwise.
    Runnable doUnbind = new Runnable() {
        @Override
        public void run() {
            synchronized (mCountLock) {
                if (connection.isStrongBindingBound()) {
                    decrementOomCount(pid);
                    connection.detachAsActive();
                }
            }
        }
    };

    if (SysUtils.isLowEndDevice()) {
        doUnbind.run();
    } else {
        ThreadUtils.postOnUiThreadDelayed(doUnbind, DETACH_AS_ACTIVE_HIGH_END_DELAY_MILLIS);
    }
}
 

/**
 * Runs a Runnable task after a given delay.
 *
 * Protected and non-static for testing.
 *
 * @param r The Runnable that will be executed.
 * @param delayMillis The delay (in ms) until the Runnable will be executed.
 * @return True if the Runnable was successfully placed into the message queue.
 */
protected void delayThenRun(Runnable r, long delayMillis) {
    ThreadUtils.postOnUiThreadDelayed(r, delayMillis);
}