/**
* Enable the keyguard if the settings are appropriate. Return true if all work that will happen
* is done; returns false if the caller can wait for the keyguard to be shown.
*/
private void doKeyguardLocked() {
boolean bEnableKeyguard = SystemProperties.getBoolean("keyguard.enable", true);
if (!bEnableKeyguard) return;
// if another app is disabling us, don't show
if (!mExternallyEnabled) {
if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled");
// note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes
// for an occasional ugly flicker in this situation:
// 1) receive a call with the screen on (no keyguard) or make a call
// 2) screen times out
// 3) user hits key to turn screen back on
// instead, we reenable the keyguard when we know the screen is off and the call
// ends (see the broadcast receiver below)
// TODO: clean this up when we have better support at the window manager level
// for apps that wish to be on top of the keyguard
return;
}
// if the keyguard is already showing, don't bother
if (mKeyguardViewManager.isShowing()) {
if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing");
return;
}
// if the setup wizard hasn't run yet, don't show
final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", false);
final boolean provisioned = mUpdateMonitor.isDeviceProvisioned();
final IccCard.State state = mUpdateMonitor.getSimState();
final boolean lockedOrMissing =
state.isPinLocked()
|| ((state == IccCard.State.ABSENT || state == IccCard.State.PERM_DISABLED)
&& requireSim);
if (!lockedOrMissing && !provisioned) {
if (DEBUG)
Log.d(
TAG,
"doKeyguard: not showing because device isn't provisioned"
+ " and the sim is not locked or missing");
return;
}
if (mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) {
if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off");
return;
}
if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen");
showLocked();
}
/**
* Returns true if the change is resulting in the keyguard beign dismissed, meaning the screen can
* turn on immediately. Otherwise returns false.
*/
public boolean doLidChangeTq(boolean isLidOpen) {
mKeyboardOpen = isLidOpen;
if (mUpdateMonitor.isKeyguardBypassEnabled()
&& mKeyboardOpen
&& !mKeyguardViewProperties.isSecure()
&& mKeyguardViewManager.isShowing()) {
if (DEBUG)
Log.d(TAG, "bypassing keyguard on sliding open of keyboard with non-secure keyguard");
mHandler.sendEmptyMessage(KEYGUARD_DONE_AUTHENTICATING);
return true;
}
return false;
}