Initial checkin of AOSP Messaging app.
b/23110861 Change-Id: I11db999bd10656801e618f78ab2b2ef74136fff1
This commit is contained in:
Mike Dodd
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.messaging.ui.mediapicker;
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import android.app.FragmentManager;
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import android.content.Context;
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import android.support.v7.app.ActionBar;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.ImageButton;
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import com.android.messaging.R;
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import com.android.messaging.datamodel.binding.ImmutableBindingRef;
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import com.android.messaging.datamodel.data.MediaPickerData;
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import com.android.messaging.datamodel.data.DraftMessageData.DraftMessageSubscriptionDataProvider;
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import com.android.messaging.ui.BasePagerViewHolder;
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import com.android.messaging.util.Assert;
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import com.android.messaging.util.OsUtil;
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abstract class MediaChooser extends BasePagerViewHolder
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implements DraftMessageSubscriptionDataProvider {
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/** The media picker that the chooser is hosted in */
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protected final MediaPicker mMediaPicker;
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/** Referencing the main media picker binding to perform data loading */
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protected final ImmutableBindingRef<MediaPickerData> mBindingRef;
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/** True if this is the selected chooser */
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protected boolean mSelected;
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/** True if this chooser is open */
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protected boolean mOpen;
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/** The button to show in the tab strip */
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private ImageButton mTabButton;
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/** Used by subclasses to indicate that no loader is required from the data model in order for
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* this chooser to function.
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*/
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public static final int NO_LOADER_REQUIRED = -1;
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/**
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* Initializes a new instance of the Chooser class
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* @param mediaPicker The media picker that the chooser is hosted in
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*/
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MediaChooser(final MediaPicker mediaPicker) {
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Assert.notNull(mediaPicker);
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mMediaPicker = mediaPicker;
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mBindingRef = mediaPicker.getMediaPickerDataBinding();
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mSelected = false;
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}
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protected void setSelected(final boolean selected) {
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mSelected = selected;
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if (selected) {
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// If we're selected, it must be open
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mOpen = true;
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}
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if (mTabButton != null) {
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mTabButton.setSelected(selected);
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mTabButton.setAlpha(selected ? 1 : 0.5f);
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}
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}
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ImageButton getTabButton() {
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return mTabButton;
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}
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void onCreateTabButton(final LayoutInflater inflater, final ViewGroup parent) {
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mTabButton = (ImageButton) inflater.inflate(
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R.layout.mediapicker_tab_button,
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parent,
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false /* addToParent */);
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mTabButton.setImageResource(getIconResource());
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mTabButton.setContentDescription(
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inflater.getContext().getResources().getString(getIconDescriptionResource()));
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setSelected(mSelected);
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mTabButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(final View view) {
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mMediaPicker.selectChooser(MediaChooser.this);
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}
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});
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}
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protected Context getContext() {
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return mMediaPicker.getActivity();
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}
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protected FragmentManager getFragmentManager() {
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return OsUtil.isAtLeastJB_MR1() ? mMediaPicker.getChildFragmentManager() :
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mMediaPicker.getFragmentManager();
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}
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protected LayoutInflater getLayoutInflater() {
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return LayoutInflater.from(getContext());
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}
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/** Allows the chooser to handle full screen change */
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void onFullScreenChanged(final boolean fullScreen) {}
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/** Allows the chooser to handle the chooser being opened or closed */
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void onOpenedChanged(final boolean open) {
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mOpen = open;
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}
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/** @return The bit field of media types that this chooser can pick */
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public abstract int getSupportedMediaTypes();
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/** @return The resource id of the icon for the chooser */
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abstract int getIconResource();
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/** @return The resource id of the string to use for the accessibility text of the icon */
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abstract int getIconDescriptionResource();
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/**
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* Sets up the action bar to show the current state of the full-screen chooser
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* @param actionBar The action bar to populate
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*/
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void updateActionBar(final ActionBar actionBar) {
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final int actionBarTitleResId = getActionBarTitleResId();
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if (actionBarTitleResId == 0) {
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actionBar.hide();
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} else {
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actionBar.setCustomView(null);
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actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_TITLE);
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actionBar.setDisplayHomeAsUpEnabled(true);
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actionBar.show();
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// Use X instead of <- in the action bar
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actionBar.setHomeAsUpIndicator(R.drawable.ic_remove_small_light);
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actionBar.setTitle(actionBarTitleResId);
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}
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}
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/**
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* Returns the resource Id used for the action bar title.
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*/
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abstract int getActionBarTitleResId();
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/**
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* Throws an exception if the media chooser object doesn't require data support.
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*/
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public void onDataUpdated(final Object data, final int loaderId) {
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throw new IllegalStateException();
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}
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/**
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* Called by the MediaPicker to determine whether this panel can be swiped down further. If
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* not, then a swipe down gestured will be captured by the MediaPickerPanel to shrink the
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* entire panel.
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*/
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public boolean canSwipeDown() {
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return false;
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}
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/**
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* Typically the media picker is closed when the IME is opened, but this allows the chooser to
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* specify that showing the IME is okay while the chooser is up
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*/
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public boolean canShowIme() {
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return false;
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}
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public boolean onBackPressed() {
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return false;
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}
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public void onCreateOptionsMenu(final MenuInflater inflater, final Menu menu) {
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}
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public boolean onOptionsItemSelected(final MenuItem item) {
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return false;
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}
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public void setThemeColor(final int color) {
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}
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/**
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* Returns true if the chooser is owning any incoming touch events, so that the media picker
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* panel won't process it and slide the panel.
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*/
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public boolean isHandlingTouch() {
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return false;
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}
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public void stopTouchHandling() {
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}
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@Override
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public int getConversationSelfSubId() {
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return mMediaPicker.getConversationSelfSubId();
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}
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/** Optional activity life-cycle methods to be overridden by subclasses */
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public void onPause() { }
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public void onResume() { }
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protected void onRequestPermissionsResult(
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final int requestCode, final String permissions[], final int[] grantResults) { }
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}
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