androidx/slice/builders/impl/ListBuilder.java

/*
 * Copyright 2018 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 androidx.slice.builders.impl;

import static androidx.annotation.RestrictTo.Scope.LIBRARY;

import android.app.PendingIntent;
import android.net.Uri;

import androidx.annotation.ColorInt;
import androidx.annotation.NonNull;
import androidx.annotation.RestrictTo;
import androidx.core.graphics.drawable.IconCompat;
import androidx.slice.builders.SliceAction;

import java.util.List;

/**
 * @hide
 */
@RestrictTo(LIBRARY)
public interface ListBuilder {

    /**
     * Add a row to list builder.
     */
    void addRow(TemplateBuilderImpl impl);
    /**
     * Add a grid row to the list builder.
     */
    void addGridRow(TemplateBuilderImpl impl);

    /**
     * Adds a header to this template.
     * <p>
     * The header should contain a title that is representative of the content in this slice along
     * with an intent that links to the app activity associated with this content.
     */
    void setHeader(TemplateBuilderImpl impl);

    /**
     * Adds an action to this template. Actions added with this method are grouped together and
     * may be shown on the template in large or small formats.
     */
    void addAction(SliceAction action);

    /**
     * Add an input range row to the list builder.
     */
    void addInputRange(TemplateBuilderImpl builder);

    /**
     * Add a range row to the list builder.
     */
    void addRange(TemplateBuilderImpl builder);

    /**
     * If all content in a slice cannot be shown, the row added here will be displayed where the
     * content is cut off. This row should have an affordance to take the user to an activity to
     * see all of the content.
     * <p>
     * Only one see more affordance can be added, this throws {@link IllegalStateException} if
     * a row or action has been previously added.
     * </p>
     */
    void setSeeMoreRow(TemplateBuilderImpl builder);
    /**
     * If all content in a slice cannot be shown, a "see more" affordance will be displayed where
     * the content is cut off. The action added here should take the user to an activity to see
     * all of the content, and will be invoked when the "see more" affordance is tapped.
     * <p>
     * Only one see more affordance can be added, this throws {@link IllegalStateException} if
     * a row or action has been previously added.
     * </p>
     */
    void setSeeMoreAction(PendingIntent intent);

    /**
     * Sets the color to tint items displayed by this template (e.g. icons).
     */
    void setColor(@ColorInt int color);

    /**
     * Sets keywords to associate with this slice.
     */
    void setKeywords(List<String> keywords);

    /**
     * Sets the time-to-live for this slice, i.e. how long the data contained in the slice
     * can remain fresh.
     *
     * @param ttl the length in milliseconds that this content can live for.
     */
    void setTtl(long ttl);

    /**
     * Create a builder that implements {@link RowBuilder}.
     */
    TemplateBuilderImpl createRowBuilder();
    /**
     * Create a builder that implements {@link RowBuilder}.
     */
    TemplateBuilderImpl createRowBuilder(Uri uri);
    /**
     * Create a builder that implements {@link GridRowBuilder}.
     */
    TemplateBuilderImpl createGridBuilder();
    /**
     * Create a builder that implements {@link HeaderBuilder}.
     */
    TemplateBuilderImpl createHeaderBuilder();
    /**
     * Create a builder that implements {@link HeaderBuilder}.
     */
    TemplateBuilderImpl createHeaderBuilder(Uri uri);
    /**
     * Create a builder that implements {@link InputRangeBuilder}.
     */
    TemplateBuilderImpl createInputRangeBuilder();
    /**
     * Create a builder that implements {@link RangeBuilder}.
     */
    TemplateBuilderImpl createRangeBuilder();

    /**
     * Builder to construct a range.
     */
    interface RangeBuilder {
        /**
         * Set the lower limit.
         */
        void setMin(int min);

        /**
         * Set the upper limit.
         */
        void setMax(int max);

        /**
         * Set the current value.
         */
        void setValue(int value);

        /**
         * Set the title.
         */
        void setTitle(@NonNull CharSequence title);

        /**
         * Set the subtitle.
         */
        void setSubtitle(@NonNull CharSequence title);

        /**
         * Set the primary action.
         */
        void setPrimaryAction(@NonNull SliceAction action);

        /**
         * Sets the content description.
         */
        void setContentDescription(CharSequence description);
    }

    /**
     * Builder to construct an input range.
     */
    interface InputRangeBuilder extends RangeBuilder {
        /**
         * Set the {@link PendingIntent} to send when the value changes.
         */
        void setInputAction(@NonNull PendingIntent action);

        /**
         * Set the {@link IconCompat} to be displayed as the thumb on the input range.
         */
        void setThumb(@NonNull IconCompat thumb);
    }

    /**
     */
    interface RowBuilder {

        /**
         * Sets the title item to be the provided timestamp. Only one timestamp can be added, if
         * one is already added this will throw {@link IllegalArgumentException}.
         * <p>
         * There can only be one title item, this will replace any other title
         * items that may have been set.
         */
        void setTitleItem(long timeStamp);

        /**
         * Sets the title item to be the provided icon. There can only be one title item, this
         * will replace any other title items that may have been set.
         *  @param icon the image to display.
         * @param imageMode the mode that image should be displayed in.
         */
        void setTitleItem(IconCompat icon, int imageMode);

        /**
         * Sets the title item to be the provided icon. There can only be one title item, this
         * will replace any other title items that may have been set.
         * <p>
         * When set to true, the parameter {@code isLoading} indicates that the app is doing work
         * to load this content in the background, in this case the template displays a placeholder
         * until updated.
         *  @param icon the image to display.
         * @param imageMode the mode that image should be displayed in.
         * @param isLoading whether this content is being loaded in the background.
         */
        void setTitleItem(IconCompat icon, int imageMode, boolean isLoading);

        /**
         * Sets the title item to be a tappable icon. There can only be one title item, this will
         * replace any other title items that may have been set.
         */
        void setTitleItem(SliceAction action);

        /**
         * Sets the title item to be a tappable icon. There can only be one title item, this will
         * replace any other title items that may have been set.
         * <p>
         * When set to true, the parameter {@code isLoading} indicates that the app is doing work
         * to load this content in the background, in this case the template displays a placeholder
         * until updated.
         */
        void setTitleItem(SliceAction action, boolean isLoading);

        /**
         * Sets the action to be invoked if the user taps on the main content of the template.
         */
        void setPrimaryAction(SliceAction action);

        /**
         * Sets the title text.
         */
        void setTitle(CharSequence title);

        /**
         * Sets the title text.
         * <p>
         * When set to true, the parameter {@code isLoading} indicates that the app is doing work
         * to load this content in the background, in this case the template displays a placeholder
         * until updated.
         */
        void setTitle(CharSequence title, boolean isLoading);

        /**
         * Sets the subtitle text.
         */
        void setSubtitle(CharSequence subtitle);

        /**
         * Sets the subtitle text.
         * <p>
         * When set to true, the parameter {@code isLoading} indicates that the app is doing work
         * to load this content in the background, in this case the template displays a placeholder
         * until updated.
         */
        void setSubtitle(CharSequence subtitle, boolean isLoading);

        /**
         * Adds a timestamp to be displayed at the end of the row.
         */
        void addEndItem(long timeStamp);

        /**
         * Adds an icon to be displayed at the end of the row.
         *  @param icon the image to display.
         * @param imageMode the mode that image should be displayed in.
         */
        void addEndItem(IconCompat icon, int imageMode);

        /**
         * Adds an icon to be displayed at the end of the row.
         * <p>
         * When set to true, the parameter {@code isLoading} indicates that the app is doing work
         * to load this content in the background, in this case the template displays a placeholder
         * until updated.
         *  @param icon the image to display.
         * @param imageMode the mode that image should be displayed in.
         * @param isLoading whether this content is being loaded in the background.
         */
        void addEndItem(IconCompat icon, int imageMode, boolean isLoading);

        /**
         * Adds a tappable icon to be displayed at the end of the row.
         */
        void addEndItem(SliceAction action);

        /**
         * Adds a tappable icon to be displayed at the end of the row.
         * <p>
         * When set to true, the parameter {@code isLoading} indicates that the app is doing work
         * to load this content in the background, in this case the template displays a placeholder
         * until updated.
         */
        void addEndItem(SliceAction action, boolean isLoading);

        /**
         * Sets the content description for this row.
         */
        void setContentDescription(CharSequence description);
    }


    /**
     * Builder to construct a header. A header is displayed at the top of a list and can have
     * a title, subtitle, and an action.
     */
    public interface HeaderBuilder {

        /**
         * Sets the title to be shown in this header.
         */
        void setTitle(CharSequence title, boolean isLoading);

        /**
         * Sets the subtitle to be shown in this header.
         */
        void setSubtitle(CharSequence subtitle, boolean isLoading);

        /**
         * Sets the summary subtitle to be shown in this header. If unset, the normal subtitle
         * will be used. The summary is used when the parent template is presented in a
         * small format.
         */
        void setSummary(CharSequence summarySubtitle, boolean isLoading);

        /**
         * Sets the action to invoke when the header is activated.
         */
        void setPrimaryAction(SliceAction action);

        /**
         * Sets the content description for the header.
         */
        void setContentDescription(CharSequence description);
    }
}