| /* |
| * Copyright (C) 2013 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 android.content; |
| |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| |
| /** |
| * Applications can expose restrictions for a restricted user on a |
| * multiuser device. The administrator can configure these restrictions that will then be |
| * applied to the restricted user. Each RestrictionsEntry is one configurable restriction. |
| * <p/> |
| * Any application that chooses to expose such restrictions does so by implementing a |
| * receiver that handles the {@link Intent#ACTION_GET_RESTRICTION_ENTRIES} action. |
| * The receiver then returns a result bundle that contains an entry called "restrictions", whose |
| * value is an ArrayList<RestrictionsEntry>. |
| */ |
| public class RestrictionEntry implements Parcelable { |
| |
| /** |
| * A type of restriction. Use this type for information that needs to be transferred across |
| * but shouldn't be presented to the user in the UI. Stores a single String value. |
| */ |
| public static final int TYPE_NULL = 0; |
| |
| /** |
| * A type of restriction. Use this for storing a boolean value, typically presented as |
| * a checkbox in the UI. |
| */ |
| public static final int TYPE_BOOLEAN = 1; |
| |
| /** |
| * A type of restriction. Use this for storing a string value, typically presented as |
| * a single-select list. Call {@link #setChoiceEntries(String[])} and |
| * {@link #setChoiceValues(String[])} to set the localized list entries to present to the user |
| * and the corresponding values, respectively. |
| */ |
| public static final int TYPE_CHOICE = 2; |
| |
| /** |
| * A type of restriction. Use this for storing a string value, typically presented as |
| * a single-select list. Call {@link #setChoiceEntries(String[])} and |
| * {@link #setChoiceValues(String[])} to set the localized list entries to present to the user |
| * and the corresponding values, respectively. |
| * The presentation could imply that values in lower array indices are included when a |
| * particular value is chosen. |
| * @hide |
| */ |
| public static final int TYPE_CHOICE_LEVEL = 3; |
| |
| /** |
| * A type of restriction. Use this for presenting a multi-select list where more than one |
| * entry can be selected, such as for choosing specific titles to white-list. |
| * Call {@link #setChoiceEntries(String[])} and |
| * {@link #setChoiceValues(String[])} to set the localized list entries to present to the user |
| * and the corresponding values, respectively. |
| * Use {@link #getAllSelectedStrings()} and {@link #setAllSelectedStrings(String[])} to |
| * manipulate the selections. |
| */ |
| public static final int TYPE_MULTI_SELECT = 4; |
| |
| /** The type of restriction. */ |
| private int type; |
| |
| /** The unique key that identifies the restriction. */ |
| private String key; |
| |
| /** The user-visible title of the restriction. */ |
| private String title; |
| |
| /** The user-visible secondary description of the restriction. */ |
| private String description; |
| |
| /** The user-visible set of choices used for single-select and multi-select lists. */ |
| private String [] choices; |
| |
| /** The values corresponding to the user-visible choices. The value(s) of this entry will |
| * one or more of these, returned by {@link #getAllSelectedStrings()} and |
| * {@link #getSelectedString()}. |
| */ |
| private String [] values; |
| |
| /* The chosen value, whose content depends on the type of the restriction. */ |
| private String currentValue; |
| |
| /* List of selected choices in the multi-select case. */ |
| private String[] currentValues; |
| |
| /** |
| * Constructor for {@link #TYPE_CHOICE} type. |
| * @param key the unique key for this restriction |
| * @param selectedString the current value |
| */ |
| public RestrictionEntry(String key, String selectedString) { |
| this.key = key; |
| this.type = TYPE_CHOICE; |
| this.currentValue = selectedString; |
| } |
| |
| /** |
| * Constructor for {@link #TYPE_BOOLEAN} type. |
| * @param key the unique key for this restriction |
| * @param selectedState whether this restriction is selected or not |
| */ |
| public RestrictionEntry(String key, boolean selectedState) { |
| this.key = key; |
| this.type = TYPE_BOOLEAN; |
| setSelectedState(selectedState); |
| } |
| |
| /** |
| * Constructor for {@link #TYPE_MULTI_SELECT} type. |
| * @param key the unique key for this restriction |
| * @param selectedStrings the list of values that are currently selected |
| */ |
| public RestrictionEntry(String key, String[] selectedStrings) { |
| this.key = key; |
| this.type = TYPE_MULTI_SELECT; |
| this.currentValues = selectedStrings; |
| } |
| |
| /** |
| * Sets the type for this restriction. |
| * @param type the type for this restriction. |
| */ |
| public void setType(int type) { |
| this.type = type; |
| } |
| |
| /** |
| * Returns the type for this restriction. |
| * @return the type for this restriction |
| */ |
| public int getType() { |
| return type; |
| } |
| |
| /** |
| * Returns the currently selected string value. |
| * @return the currently selected value, which can be null for types that aren't for holding |
| * single string values. |
| */ |
| public String getSelectedString() { |
| return currentValue; |
| } |
| |
| /** |
| * Returns the list of currently selected values. |
| * @return the list of current selections, if type is {@link #TYPE_MULTI_SELECT}, |
| * null otherwise. |
| */ |
| public String[] getAllSelectedStrings() { |
| return currentValues; |
| } |
| |
| /** |
| * Returns the current selected state for an entry of type {@link #TYPE_BOOLEAN}. |
| * @return the current selected state of the entry. |
| */ |
| public boolean getSelectedState() { |
| return Boolean.parseBoolean(currentValue); |
| } |
| |
| /** |
| * Sets the string value to use as the selected value for this restriction. This value will |
| * be persisted by the system for later use by the application. |
| * @param selectedString the string value to select. |
| */ |
| public void setSelectedString(String selectedString) { |
| currentValue = selectedString; |
| } |
| |
| /** |
| * Sets the current selected state for an entry of type {@link #TYPE_BOOLEAN}. This value will |
| * be persisted by the system for later use by the application. |
| * @param state the current selected state |
| */ |
| public void setSelectedState(boolean state) { |
| currentValue = Boolean.toString(state); |
| } |
| |
| /** |
| * Sets the current list of selected values for an entry of type {@link #TYPE_MULTI_SELECT}. |
| * These values will be persisted by the system for later use by the application. |
| * @param allSelectedStrings the current list of selected values. |
| */ |
| public void setAllSelectedStrings(String[] allSelectedStrings) { |
| currentValues = allSelectedStrings; |
| } |
| |
| /** |
| * Sets a list of string values that can be selected by the user. If no user-visible entries |
| * are set by a call to {@link #setChoiceEntries(String[])}, these values will be the ones |
| * shown to the user. Values will be chosen from this list as the user's selection and the |
| * selected values can be retrieved by a call to {@link #getAllSelectedStrings()}, or |
| * {@link #getSelectedString()}, depending on whether it is a multi-select type or choice type. |
| * This method is not relevant for types other than |
| * {@link #TYPE_CHOICE}, and {@link #TYPE_MULTI_SELECT}. |
| * @param choiceValues an array of Strings which will be the selected values for the user's |
| * selections. |
| * @see #getChoiceValues() |
| * @see #getAllSelectedStrings() |
| */ |
| public void setChoiceValues(String[] choiceValues) { |
| values = choiceValues; |
| } |
| |
| /** |
| * Sets a list of string values that can be selected by the user, similar to |
| * {@link #setChoiceValues(String[])}. |
| * @param context the application context for retrieving the resources. |
| * @param stringArrayResId the resource id for a string array containing the possible values. |
| * @see #setChoiceValues(String[]) |
| */ |
| public void setChoiceValues(Context context, int stringArrayResId) { |
| values = context.getResources().getStringArray(stringArrayResId); |
| } |
| |
| /** |
| * Returns the list of possible string values set earlier. |
| * @return the list of possible values. |
| */ |
| public String[] getChoiceValues() { |
| return values; |
| } |
| |
| /** |
| * Sets a list of strings that will be presented as choices to the user. When the |
| * user selects one or more of these choices, the corresponding value from the possible values |
| * are stored as the selected strings. The size of this array must match the size of the array |
| * set in {@link #setChoiceValues(String[])}. This method is not relevant for types other |
| * than {@link #TYPE_CHOICE}, and {@link #TYPE_MULTI_SELECT}. |
| * @param choiceEntries the list of user-visible choices. |
| * @see #setChoiceValues(String[]) |
| */ |
| public void setChoiceEntries(String[] choiceEntries) { |
| choices = choiceEntries; |
| } |
| |
| /** Sets a list of strings that will be presented as choices to the user. This is similar to |
| * {@link #setChoiceEntries(String[])}. |
| * @param context the application context, used for retrieving the resources. |
| * @param stringArrayResId the resource id of a string array containing the possible entries. |
| */ |
| public void setChoiceEntries(Context context, int stringArrayResId) { |
| choices = context.getResources().getStringArray(stringArrayResId); |
| } |
| |
| /** |
| * Returns the list of strings, set earlier, that will be presented as choices to the user. |
| * @return the list of choices presented to the user. |
| */ |
| public String[] getChoiceEntries() { |
| return choices; |
| } |
| |
| /** |
| * Returns the provided user-visible description of the entry, if any. |
| * @return the user-visible description, null if none was set earlier. |
| */ |
| public String getDescription() { |
| return description; |
| } |
| |
| /** |
| * Sets the user-visible description of the entry, as a possible sub-text for the title. |
| * You can use this to describe the entry in more detail or to display the current state of |
| * the restriction. |
| * @param description the user-visible description string. |
| */ |
| public void setDescription(String description) { |
| this.description = description; |
| } |
| |
| /** |
| * This is the unique key for the restriction entry. |
| * @return the key for the restriction. |
| */ |
| public String getKey() { |
| return key; |
| } |
| |
| /** |
| * Returns the user-visible title for the entry, if any. |
| * @return the user-visible title for the entry, null if none was set earlier. |
| */ |
| public String getTitle() { |
| return title; |
| } |
| |
| /** |
| * Sets the user-visible title for the entry. |
| * @param title the user-visible title for the entry. |
| */ |
| public void setTitle(String title) { |
| this.title = title; |
| } |
| |
| private boolean equalArrays(String[] one, String[] other) { |
| if (one.length != other.length) return false; |
| for (int i = 0; i < one.length; i++) { |
| if (!one[i].equals(other[i])) return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o == this) return true; |
| if (!(o instanceof RestrictionEntry)) return false; |
| final RestrictionEntry other = (RestrictionEntry) o; |
| // Make sure that either currentValue matches or currentValues matches. |
| return type == other.type && key.equals(other.key) |
| && |
| ((currentValues == null && other.currentValues == null |
| && currentValue != null && currentValue.equals(other.currentValue)) |
| || |
| (currentValue == null && other.currentValue == null |
| && currentValues != null && equalArrays(currentValues, other.currentValues))); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = 17; |
| result = 31 * result + key.hashCode(); |
| if (currentValue != null) { |
| result = 31 * result + currentValue.hashCode(); |
| } else if (currentValues != null) { |
| for (String value : currentValues) { |
| if (value != null) { |
| result = 31 * result + value.hashCode(); |
| } |
| } |
| } |
| return result; |
| } |
| |
| private String[] readArray(Parcel in) { |
| int count = in.readInt(); |
| String[] values = new String[count]; |
| for (int i = 0; i < count; i++) { |
| values[i] = in.readString(); |
| } |
| return values; |
| } |
| |
| public RestrictionEntry(Parcel in) { |
| type = in.readInt(); |
| key = in.readString(); |
| title = in.readString(); |
| description = in.readString(); |
| choices = readArray(in); |
| values = readArray(in); |
| currentValue = in.readString(); |
| currentValues = readArray(in); |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| private void writeArray(Parcel dest, String[] values) { |
| if (values == null) { |
| dest.writeInt(0); |
| } else { |
| dest.writeInt(values.length); |
| for (int i = 0; i < values.length; i++) { |
| dest.writeString(values[i]); |
| } |
| } |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeInt(type); |
| dest.writeString(key); |
| dest.writeString(title); |
| dest.writeString(description); |
| writeArray(dest, choices); |
| writeArray(dest, values); |
| dest.writeString(currentValue); |
| writeArray(dest, currentValues); |
| } |
| |
| public static final Creator<RestrictionEntry> CREATOR = new Creator<RestrictionEntry>() { |
| public RestrictionEntry createFromParcel(Parcel source) { |
| return new RestrictionEntry(source); |
| } |
| |
| public RestrictionEntry[] newArray(int size) { |
| return new RestrictionEntry[size]; |
| } |
| }; |
| |
| @Override |
| public String toString() { |
| return "RestrictionsEntry {type=" + type + ", key=" + key + ", value=" + currentValue + "}"; |
| } |
| } |