// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.components.autofill;
import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.text.TextUtils;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView.LayoutParams;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.Nullable;
import androidx.core.view.MarginLayoutParamsCompat;
import androidx.core.view.ViewCompat;
import org.chromium.ui.DropdownDividerDrawable;
import org.chromium.ui.DropdownItem;
import java.util.List;
import java.util.Set;
/** Dropdown item adapter for the AutofillPopup. */
public class AutofillDropdownAdapter extends ArrayAdapter<DropdownItem> {
private final Context mContext;
private final Set<Integer> mSeparators;
private final boolean mAreAllItemsEnabled;
private final int mLabelMargin;
/**
* Creates an {@code ArrayAdapter} with specified parameters.
* @param context Application context.
* @param items List of labels and icons to display.
* @param separators Set of positions that separate {@code items}.
*/
public AutofillDropdownAdapter(
Context context, List<? extends DropdownItem> items, Set<Integer> separators) {
super(context, R.layout.autofill_dropdown_item);
mContext = context;
addAll(items);
mSeparators = separators;
mAreAllItemsEnabled = checkAreAllItemsEnabled();
mLabelMargin =
context.getResources()
.getDimensionPixelSize(R.dimen.autofill_dropdown_item_label_margin);
}
private boolean checkAreAllItemsEnabled() {
for (int i = 0; i < getCount(); i++) {
DropdownItem item = getItem(i);
if (item.isEnabled() && !item.isGroupHeader()) {
return false;
}
}
return true;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View layout = convertView;
if (convertView == null) {
LayoutInflater inflater = LayoutInflater.from(mContext);
layout = inflater.inflate(R.layout.autofill_dropdown_item, null);
layout.setBackground(new DropdownDividerDrawable(/* backgroundColor= */ null));
}
DropdownItem item = getItem(position);
int height =
mContext.getResources()
.getDimensionPixelSize(R.dimen.autofill_dropdown_item_height);
DropdownDividerDrawable divider = (DropdownDividerDrawable) layout.getBackground();
if (position == 0) {
divider.setDividerColor(Color.TRANSPARENT);
} else {
int dividerHeight =
mContext.getResources()
.getDimensionPixelSize(R.dimen.autofill_dropdown_item_divider_height);
height += dividerHeight;
divider.setHeight(dividerHeight);
int dividerColor;
if (mSeparators != null && mSeparators.contains(position)) {
dividerColor = mContext.getColor(R.color.dropdown_dark_divider_color);
} else {
dividerColor = mContext.getColor(R.color.dropdown_divider_color);
}
divider.setDividerColor(dividerColor);
}
// Layout of the item tag view, which has a smaller font and sits below the sub
// label.
TextView itemTagView =
populateLabelView(layout, R.id.dropdown_item_tag, item.getItemTag(), false);
if (itemTagView != null) {
itemTagView.setTextSize(
TypedValue.COMPLEX_UNIT_PX,
mContext.getResources().getDimension(item.getSublabelFontSizeResId()));
itemTagView.setTextColor(mContext.getColor(item.getSublabelFontColorResId()));
height +=
mContext.getResources()
.getDimensionPixelSize(R.dimen.autofill_dropdown_item_tag_height);
}
// Note: trying to set the height of the root LinearLayout breaks accessibility,
// so we have to adjust the height of this LinearLayout that wraps the TextViews
// instead. If you need to modify this layout, don't forget to test it with TalkBack and
// make sure it doesn't regress. http://crbug.com/429364
LinearLayout wrapper = (LinearLayout) layout.findViewById(R.id.dropdown_label_wrapper);
if (item.isMultilineLabel()) height = LayoutParams.WRAP_CONTENT;
wrapper.setOrientation(LinearLayout.VERTICAL);
wrapper.setLayoutParams(new LinearLayout.LayoutParams(0, height, 1));
// Layout of the main label view.
TextView labelView =
populateLabelView(layout, R.id.dropdown_label, item.getLabel(), item.isEnabled());
TextView secondaryLabelView =
populateLabelView(
layout,
R.id.dropdown_secondary_label,
item.getSecondaryLabel(),
item.isEnabled());
labelView.setSingleLine(!item.isMultilineLabel());
if (item.isMultilineLabel()) {
// If there is a multiline label, we add extra padding at the top and bottom because
// WRAP_CONTENT, defined above for multiline labels, leaves none.
int existingStart = ViewCompat.getPaddingStart(labelView);
int existingEnd = ViewCompat.getPaddingEnd(labelView);
labelView.setPaddingRelative(existingStart, mLabelMargin, existingEnd, mLabelMargin);
}
if (item.isGroupHeader() || item.isBoldLabel()) {
labelView.setTypeface(null, Typeface.BOLD);
if (secondaryLabelView != null) {
secondaryLabelView.setTypeface(null, Typeface.BOLD);
}
} else {
labelView.setTypeface(null, Typeface.NORMAL);
if (secondaryLabelView != null) {
secondaryLabelView.setTypeface(null, Typeface.NORMAL);
}
}
labelView.setTextSize(
TypedValue.COMPLEX_UNIT_PX,
mContext.getResources().getDimension(item.getLabelFontSizeResId()));
labelView.setTextColor(mContext.getColor(item.getLabelFontColorResId()));
if (secondaryLabelView != null) {
secondaryLabelView.setTextSize(
TypedValue.COMPLEX_UNIT_PX,
mContext.getResources().getDimension(item.getLabelFontSizeResId()));
secondaryLabelView.setTextColor(mContext.getColor(item.getLabelFontColorResId()));
}
// Layout of the sublabel view, which has a smaller font and usually sits below the main
// label.
TextView sublabelView =
populateLabelView(layout, R.id.dropdown_sublabel, item.getSublabel(), false);
if (sublabelView != null) {
sublabelView.setTextSize(
TypedValue.COMPLEX_UNIT_PX,
mContext.getResources().getDimension(item.getSublabelFontSizeResId()));
sublabelView.setTextColor(mContext.getColor(item.getSublabelFontColorResId()));
}
TextView secondarySublabelView =
populateLabelView(
layout,
R.id.dropdown_secondary_sublabel,
item.getSecondarySublabel(),
false);
if (secondarySublabelView != null) {
secondarySublabelView.setTextSize(
TypedValue.COMPLEX_UNIT_PX,
mContext.getResources().getDimension(item.getSublabelFontSizeResId()));
secondarySublabelView.setTextColor(mContext.getColor(item.getSublabelFontColorResId()));
}
ImageView iconViewStart = (ImageView) layout.findViewById(R.id.start_dropdown_icon);
ImageView iconViewEnd = (ImageView) layout.findViewById(R.id.end_dropdown_icon);
if (item.isIconAtStart()) {
iconViewEnd.setVisibility(View.GONE);
iconViewStart.setVisibility(View.VISIBLE);
} else {
iconViewStart.setVisibility(View.GONE);
iconViewEnd.setVisibility(View.VISIBLE);
}
ImageView iconView =
populateIconView(item.isIconAtStart() ? iconViewStart : iconViewEnd, item);
if (iconView != null) {
iconView.setLayoutParams(getSizeAndMarginParamsForIconView(iconView, item));
}
return layout;
}
@Override
public boolean areAllItemsEnabled() {
return mAreAllItemsEnabled;
}
@Override
public boolean isEnabled(int position) {
if (position < 0 || position >= getCount()) return false;
DropdownItem item = getItem(position);
return item.isEnabled() && !item.isGroupHeader();
}
/**
* Sets the text and the enabled state for the dropdown labels.
* @param item the DropdownItem for this row.
* @param layout the View in which the label can be found.
* @param viewId the ID for the label's view.
* @param label the text to be displayed as the label.
* @param isEnabled the android:enabled state of the label.
* @return the View.
*/
private TextView populateLabelView(
View layout, int viewId, CharSequence label, boolean isEnabled) {
TextView labelView = layout.findViewById(viewId);
if (TextUtils.isEmpty(label)) {
labelView.setVisibility(View.GONE);
return null;
}
labelView.setText(label);
labelView.setEnabled(isEnabled);
labelView.setVisibility(View.VISIBLE);
return labelView;
}
/**
* Sets the drawable in the given ImageView to the resource identified in the item, or sets
* iconView to visibility GONE if no icon is given.
* @param iconView the ImageView which should be modified.
* @param item the DropdownItem for this row.
* @return |iconView| if it has been set to be visible; null otherwise.
*/
@Nullable
private ImageView populateIconView(ImageView iconView, DropdownItem item) {
// If there is no icon, remove the icon view.
if (item.getIconDrawable() == null) {
iconView.setVisibility(View.GONE);
return null;
}
iconView.setImageDrawable(item.getIconDrawable());
iconView.setVisibility(View.VISIBLE);
// TODO(crbug.com/40589327): Add accessible text for this icon.
return iconView;
}
/**
* @param iconView the ImageView for which params are being generated.
* @param item the DropdownItem for this row.
* @return a MarginLayoutParams object with values suitable for sizing iconView.
*/
private ViewGroup.MarginLayoutParams getSizeParamsForIconView(
ImageView iconView, DropdownItem item) {
ViewGroup.MarginLayoutParams iconLayoutParams =
(ViewGroup.MarginLayoutParams) iconView.getLayoutParams();
int iconSizeResId = item.getIconSizeResId();
int iconSize =
iconSizeResId == 0
? LayoutParams.WRAP_CONTENT
: mContext.getResources().getDimensionPixelSize(iconSizeResId);
iconLayoutParams.width = iconSize;
iconLayoutParams.height = iconSize;
return iconLayoutParams;
}
/**
* @param iconView the ImageView for which params are being generated.
* @param item the DropdownItem for this row.
* @return the same as |getSizeParamsForIconView|, but with additional margin-related params
* set.
*/
private ViewGroup.MarginLayoutParams getSizeAndMarginParamsForIconView(
ImageView iconView, DropdownItem item) {
ViewGroup.MarginLayoutParams params = getSizeParamsForIconView(iconView, item);
int iconMargin = mContext.getResources().getDimensionPixelSize(item.getIconMarginResId());
MarginLayoutParamsCompat.setMarginStart(params, iconMargin);
MarginLayoutParamsCompat.setMarginEnd(params, iconMargin);
return params;
}
}
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