Java ChromePreferenceManager.getContextualSearchTapCount方法代码示例

import org.chromium.chrome.browser.preferences.ChromePreferenceManager; //导入方法依赖的package包/类
/**
 * Handles Tap suppression by making a callback to either the handler's #handleSuppressedTap()
 * or #handleNonSuppressedTap() after a possible delay.
 * This should be called when the context is fully built (by gathering surrounding text
 * if needed, etc) but before showing any UX.
 */
void handleShouldSuppressTap() {
    int x = (int) mX;
    int y = (int) mY;

    // TODO(donnd): add a policy method to get adjusted tap count.
    ChromePreferenceManager prefs = ChromePreferenceManager.getInstance();
    int adjustedTapsSinceOpen = prefs.getContextualSearchTapCount()
            - prefs.getContextualSearchTapQuickAnswerCount();
    TapSuppressionHeuristics tapHeuristics =
            new TapSuppressionHeuristics(this, mLastTapState, x, y, adjustedTapsSinceOpen);
    // TODO(donnd): Move to be called when the panel closes to work with states that change.
    tapHeuristics.logConditionState();
    // Tell the manager what it needs in order to log metrics on whether the tap would have
    // been suppressed if each of the heuristics were satisfied.
    mHandler.handleMetricsForWouldSuppressTap(tapHeuristics);

    boolean shouldSuppressTap = tapHeuristics.shouldSuppressTap();
    if (mTapTimeNanoseconds != 0) {
        // Remember the tap state for subsequent tap evaluation.
        mLastTapState =
                new ContextualSearchTapState(x, y, mTapTimeNanoseconds, shouldSuppressTap);
    } else {
        mLastTapState = null;
    }

    if (shouldSuppressTap) {
        mHandler.handleSuppressedTap();
    } else {
        mHandler.handleNonSuppressedTap();
    }
}
 

import org.chromium.chrome.browser.preferences.ChromePreferenceManager; //导入方法依赖的package包/类
/**
 * Handles an unhandled tap gesture.
 */
void handleShowUnhandledTapUIIfNeeded(int x, int y) {
    mWasTapGestureDetected = false;
    // TODO(donnd): shouldn't we check == TAP here instead of LONG_PRESS?
    // TODO(donnd): refactor to avoid needing a new handler API method as suggested by Pedro.
    if (mSelectionType != SelectionType.LONG_PRESS) {
        mWasTapGestureDetected = true;
        long tapTimeNanoseconds = System.nanoTime();
        // TODO(donnd): add a policy method to get adjusted tap count.
        ChromePreferenceManager prefs = ChromePreferenceManager.getInstance(mActivity);
        int adjustedTapsSinceOpen = prefs.getContextualSearchTapCount()
                - prefs.getContextualSearchTapQuickAnswerCount();
        // Explicitly destroy the old heuristics so native code can dispose data.
        if (mTapHeuristics != null) mTapHeuristics.destroy();
        mTapHeuristics =
                new TapSuppressionHeuristics(this, mLastTapState, x, y, adjustedTapsSinceOpen);
        // TODO(donnd): Move to be called when the panel closes to work with states that change.
        mTapHeuristics.logConditionState();
        // Tell the manager what it needs in order to log metrics on whether the tap would have
        // been suppressed if each of the heuristics were satisfied.
        mHandler.handleMetricsForWouldSuppressTap(mTapHeuristics);
        mX = x;
        mY = y;
        boolean shouldSuppressTap = mTapHeuristics.shouldSuppressTap();
        if (shouldSuppressTap) {
            mHandler.handleSuppressedTap();
        } else {
            // TODO(donnd): Find a better way to determine that a navigation will be triggered
            // by the tap, or merge with other time-consuming actions like gathering surrounding
            // text or detecting page mutations.
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    mHandler.handleValidTap();
                }
            }, TAP_NAVIGATION_DETECTION_DELAY);
        }
        // Remember the tap state for subsequent tap evaluation.
        mLastTapState =
                new ContextualSearchTapState(x, y, tapTimeNanoseconds, shouldSuppressTap);
    } else {
        // Long press; reset last tap state.
        mLastTapState = null;
        mHandler.handleInvalidTap();
    }
}