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Add a11y setting for Automatically click after pointer stops

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Adds new preference screen for the feature, where the feature can be
enabled/disabled, and delay before click can be specified (implemented
as seek bar preference, enabled iff the feature is enabled).

Preference is added to Accessibility setting. The preference summary is
set to string describing the delay after pointer stops moving before
click is scheduled (the string also contains numerical value of the
delay).

BUG=20049245

Change-Id: Ib7b2f5c24efbd08e3200143c069bcdbc9b5a327a
This commit is contained in:
Toni Barzic
2015-08-18 10:30:08 -07:00
parent 38ee17a4ae
commit 76be5e352a
7 changed files with 315 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/com/android/settings/accessibility/AccessibilitySettings.java
View File

@@ -96,6 +96,8 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
"captioning_preference_screen";
private static final String DISPLAY_MAGNIFICATION_PREFERENCE_SCREEN =
"screen_magnification_preference_screen";
private static final String AUTOCLICK_PREFERENCE_SCREEN =
"autoclick_preference_screen";
private static final String DISPLAY_DALTONIZER_PREFERENCE_SCREEN =
"daltonizer_preference_screen";
@@ -190,6 +192,7 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
private Preference mNoServicesMessagePreference;
private PreferenceScreen mCaptioningPreferenceScreen;
private PreferenceScreen mDisplayMagnificationPreferenceScreen;
private PreferenceScreen mAutoclickPreferenceScreen;
private PreferenceScreen mGlobalGesturePreferenceScreen;
private PreferenceScreen mDisplayDaltonizerPreferenceScreen;
private SwitchPreference mToggleInversionPreference;
@@ -410,6 +413,10 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
mDisplayMagnificationPreferenceScreen = (PreferenceScreen) findPreference(
DISPLAY_MAGNIFICATION_PREFERENCE_SCREEN);
// Autoclick after pointer stops.
mAutoclickPreferenceScreen = (PreferenceScreen) findPreference(
AUTOCLICK_PREFERENCE_SCREEN);
// Display color adjustments.
mDisplayDaltonizerPreferenceScreen = (PreferenceScreen) findPreference(
DISPLAY_DALTONIZER_PREFERENCE_SCREEN);
@@ -582,6 +589,8 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
updateFeatureSummary(Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
mDisplayDaltonizerPreferenceScreen);
updateAutoclickSummary(mAutoclickPreferenceScreen);
// Global gesture
final boolean globalGestureEnabled = Settings.Global.getInt(getContentResolver(),
Settings.Global.ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED, 0) == 1;
@@ -600,6 +609,20 @@ public class AccessibilitySettings extends SettingsPreferenceFragment implements
: R.string.accessibility_feature_state_off);
}
private void updateAutoclickSummary(Preference pref) {
final boolean enabled = Settings.Secure.getInt(
getContentResolver(), Settings.Secure.ACCESSIBILITY_AUTOCLICK_ENABLED, 0) == 1;
if (!enabled) {
pref.setSummary(R.string.accessibility_feature_state_off);
return;
}
int delay = Settings.Secure.getInt(
getContentResolver(), Settings.Secure.ACCESSIBILITY_AUTOCLICK_DELAY,
AccessibilityManager.AUTOCLICK_DELAY_DEFAULT);
pref.setSummary(ToggleAutoclickPreferenceFragment.getAutoclickPreferenceSummary(
getResources(), delay));
}
private void updateLockScreenRotationCheckbox() {
Context context = getActivity();
if (context != null) {

179
src/com/android/settings/accessibility/ToggleAutoclickPreferenceFragment.java Normal file
View File

@@ -0,0 +1,179 @@
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.accessibility;
import android.content.res.Resources;
import android.os.Bundle;
import android.preference.SeekBarPreference;
import android.preference.Preference;
import android.provider.Settings;
import android.view.View;
import android.view.accessibility.AccessibilityManager;
import android.widget.Switch;
import com.android.settings.widget.SwitchBar;
import com.android.settings.InstrumentedFragment;
import com.android.settings.R;
/**
* Fragment for preference screen for settings related to Automatically click after mouse stops
* feature.
*/
public class ToggleAutoclickPreferenceFragment extends ToggleFeaturePreferenceFragment
implements SwitchBar.OnSwitchChangeListener, Preference.OnPreferenceChangeListener {
/** Min allowed autoclick delay value. */
private static final int MIN_AUTOCLICK_DELAY = 200;
/** Max allowed autoclick delay value. */
private static final int MAX_AUTOCLICK_DELAY = 1000;
/**
* Allowed autoclick delay values are discrete. This is the difference between two allowed
* values.
*/
private static final int AUTOCLICK_DELAY_STEP = 100;
/**
* Resource ids from which autoclick preference summaries should be derived. The strings have
* placeholder for integer delay value.
*/
private static final int[] mAutoclickPreferenceSummaries = {
R.plurals.accessibilty_autoclick_preference_subtitle_extremely_short_delay,
R.plurals.accessibilty_autoclick_preference_subtitle_very_short_delay,
R.plurals.accessibilty_autoclick_preference_subtitle_short_delay,
R.plurals.accessibilty_autoclick_preference_subtitle_long_delay,
R.plurals.accessibilty_autoclick_preference_subtitle_very_long_delay
};
/**
* Seek bar preference for autoclick delay value. The seek bar has values between 0 and
* number of possible discrete autoclick delay values. These will have to be converted to actual
* delay values before saving them in settings.
*/
private SeekBarPreference mDelay;
/**
* Gets string that should be used as a autoclick preference summary for provided autoclick
* delay.
* @param resources Resources from which string should be retrieved.
* @param delay Delay for whose value summary should be retrieved.
*/
static CharSequence getAutoclickPreferenceSummary(Resources resources, int delay) {
int summaryIndex = getAutoclickPreferenceSummaryIndex(delay);
return resources.getQuantityString(
mAutoclickPreferenceSummaries[summaryIndex], delay, delay);
}
/**
* Finds index of the summary that should be used for the provided autoclick delay.
*/
private static int getAutoclickPreferenceSummaryIndex(int delay) {
if (delay <= MIN_AUTOCLICK_DELAY) {
return 0;
}
if (delay >= MAX_AUTOCLICK_DELAY) {
return mAutoclickPreferenceSummaries.length - 1;
}
int rangeSize = (MAX_AUTOCLICK_DELAY - MIN_AUTOCLICK_DELAY) /
(mAutoclickPreferenceSummaries.length - 1);
return (delay - MIN_AUTOCLICK_DELAY) / rangeSize;
}
@Override
protected void onPreferenceToggled(String preferenceKey, boolean enabled) {
Settings.Secure.putInt(getContentResolver(), preferenceKey, enabled ? 1 : 0);
mDelay.setEnabled(enabled);
}
@Override
protected int getMetricsCategory() {
return InstrumentedFragment.ACCESSIBILITY_TOGGLE_AUTOCLICK;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.accessibility_autoclick_settings);
int delay = Settings.Secure.getInt(
getContentResolver(), Settings.Secure.ACCESSIBILITY_AUTOCLICK_DELAY,
AccessibilityManager.AUTOCLICK_DELAY_DEFAULT);
// Initialize seek bar preference. Sets seek bar size to the number of possible delay
// values.
mDelay = (SeekBarPreference) findPreference("autoclick_delay");
mDelay.setMax(delayToSeekBarProgress(MAX_AUTOCLICK_DELAY));
mDelay.setProgress(delayToSeekBarProgress(delay));
mDelay.setOnPreferenceChangeListener(this);
}
@Override
protected void onInstallSwitchBarToggleSwitch() {
super.onInstallSwitchBarToggleSwitch();
int value = Settings.Secure.getInt(getContentResolver(),
Settings.Secure.ACCESSIBILITY_AUTOCLICK_ENABLED, 0);
mSwitchBar.setCheckedInternal(value == 1);
mSwitchBar.addOnSwitchChangeListener(this);
mDelay.setEnabled(value == 1);
}
@Override
protected void onRemoveSwitchBarToggleSwitch() {
super.onRemoveSwitchBarToggleSwitch();
mSwitchBar.removeOnSwitchChangeListener(this);
}
@Override
public void onSwitchChanged(Switch switchView, boolean isChecked) {
onPreferenceToggled(Settings.Secure.ACCESSIBILITY_AUTOCLICK_ENABLED, isChecked);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
setTitle(getString(R.string.accessibility_autoclick_preference_title));
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
if (preference == mDelay && newValue instanceof Integer) {
Settings.Secure.putInt(getContentResolver(),
Settings.Secure.ACCESSIBILITY_AUTOCLICK_DELAY,
seekBarProgressToDelay((int)newValue));
return true;
}
return false;
}
/**
* Converts seek bar preference progress value to autoclick delay associated with it.
*/
private int seekBarProgressToDelay(int progress) {
return progress * AUTOCLICK_DELAY_STEP + MIN_AUTOCLICK_DELAY;
}
/**
* Converts autoclick delay value to seek bar preference progress values that represents said
* delay.
*/
private int delayToSeekBarProgress(int delay) {
return (delay - MIN_AUTOCLICK_DELAY) / AUTOCLICK_DELAY_STEP;
}
}