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/*
* Copyright (C) 2014 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.dialer.widget;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.content.Context;
import android.util.AttributeSet;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.view.KeyEvent;
import android.view.View;
import android.widget.EditText;
import android.widget.FrameLayout;
import com.android.dialer.R;
import com.android.dialer.util.DialerUtils;
import com.android.phone.common.animation.AnimUtils;
public class SearchEditTextLayout extends FrameLayout {
private static final float EXPAND_MARGIN_FRACTION_START = 0.8f;
private static final int ANIMATION_DURATION = 200;
private OnKeyListener mPreImeKeyListener;
private int mTopMargin;
private int mBottomMargin;
private int mLeftMargin;
private int mRightMargin;
private float mCollapsedElevation;
/* Subclass-visible for testing */
protected boolean mIsExpanded = false;
protected boolean mIsFadedOut = false;
private View mCollapsed;
private View mExpanded;
private EditText mSearchView;
private View mSearchIcon;
private View mCollapsedSearchBox;
private View mVoiceSearchButtonView;
private View mOverflowButtonView;
private View mBackButtonView;
private View mExpandedSearchBox;
private View mClearButtonView;
private ValueAnimator mAnimator;
private OnBackButtonClickedListener mOnBackButtonClickedListener;
/**
* Listener for the back button next to the search view being pressed
*/
public interface OnBackButtonClickedListener {
public void onBackButtonClicked();
}
public SearchEditTextLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void setPreImeKeyListener(OnKeyListener listener) {
mPreImeKeyListener = listener;
}
public void setOnBackButtonClickedListener(OnBackButtonClickedListener listener) {
mOnBackButtonClickedListener = listener;
}
@Override
protected void onFinishInflate() {
MarginLayoutParams params = (MarginLayoutParams) getLayoutParams();
mTopMargin = params.topMargin;
mBottomMargin = params.bottomMargin;
mLeftMargin = params.leftMargin;
mRightMargin = params.rightMargin;
mCollapsedElevation = getElevation();
mCollapsed = findViewById(R.id.search_box_collapsed);
mExpanded = findViewById(R.id.search_box_expanded);
mSearchView = (EditText) mExpanded.findViewById(R.id.search_view);
mSearchIcon = findViewById(R.id.search_magnifying_glass);
mCollapsedSearchBox = findViewById(R.id.search_box_start_search);
mVoiceSearchButtonView = findViewById(R.id.voice_search_button);
mOverflowButtonView = findViewById(R.id.dialtacts_options_menu_button);
mBackButtonView = findViewById(R.id.search_back_button);
mExpandedSearchBox = findViewById(R.id.search_box_expanded);
mClearButtonView = findViewById(R.id.search_close_button);
// Convert a long click into a click to expand the search box, and then long click on the
// search view. This accelerates the long-press scenario for copy/paste.
mCollapsedSearchBox.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View view) {
mCollapsedSearchBox.performClick();
mSearchView.performLongClick();
return false;
}
});
mSearchView.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
DialerUtils.showInputMethod(v);
} else {
DialerUtils.hideInputMethod(v);
}
}
});
mSearchView.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
mClearButtonView.setVisibility(TextUtils.isEmpty(s) ? View.GONE : View.VISIBLE);
}
@Override
public void afterTextChanged(Editable s) {
}
});
findViewById(R.id.search_close_button).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
mSearchView.setText(null);
}
});
findViewById(R.id.search_back_button).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mOnBackButtonClickedListener != null) {
mOnBackButtonClickedListener.onBackButtonClicked();
}
}
});
super.onFinishInflate();
}
@Override
public boolean dispatchKeyEventPreIme(KeyEvent event) {
if (mPreImeKeyListener != null) {
if (mPreImeKeyListener.onKey(this, event.getKeyCode(), event)) {
return true;
}
}
return super.dispatchKeyEventPreIme(event);
}
public void fadeOut() {
fadeOut(null);
}
public void fadeOut(AnimUtils.AnimationCallback callback) {
AnimUtils.fadeOut(this, ANIMATION_DURATION, callback);
mIsFadedOut = true;
}
public void fadeIn() {
AnimUtils.fadeIn(this, ANIMATION_DURATION);
mIsFadedOut = false;
}
public void setVisible(boolean visible) {
if (visible) {
setAlpha(1);
setVisibility(View.VISIBLE);
mIsFadedOut = false;
} else {
setAlpha(0);
setVisibility(View.GONE);
mIsFadedOut = true;
}
}
public void expand(boolean animate, boolean requestFocus) {
updateVisibility(true /* isExpand */);
if (animate) {
AnimUtils.crossFadeViews(mExpanded, mCollapsed, ANIMATION_DURATION);
mAnimator = ValueAnimator.ofFloat(EXPAND_MARGIN_FRACTION_START, 0f);
setMargins(EXPAND_MARGIN_FRACTION_START);
prepareAnimator(true);
} else {
mExpanded.setVisibility(View.VISIBLE);
mExpanded.setAlpha(1);
setMargins(0f);
mCollapsed.setVisibility(View.GONE);
}
// Set 9-patch background. This owns the padding, so we need to restore the original values.
int paddingTop = this.getPaddingTop();
int paddingStart = this.getPaddingStart();
int paddingBottom = this.getPaddingBottom();
int paddingEnd = this.getPaddingEnd();
setBackgroundResource(R.drawable.search_shadow);
setElevation(0);
setPaddingRelative(paddingStart, paddingTop, paddingEnd, paddingBottom);
setElevation(0);
if (requestFocus) {
mSearchView.requestFocus();
}
mIsExpanded = true;
}
public void collapse(boolean animate) {
updateVisibility(false /* isExpand */);
if (animate) {
AnimUtils.crossFadeViews(mCollapsed, mExpanded, ANIMATION_DURATION);
mAnimator = ValueAnimator.ofFloat(0f, 1f);
prepareAnimator(false);
} else {
mCollapsed.setVisibility(View.VISIBLE);
mCollapsed.setAlpha(1);
setMargins(1f);
mExpanded.setVisibility(View.GONE);
}
mIsExpanded = false;
setElevation(mCollapsedElevation);
setBackgroundResource(R.drawable.rounded_corner);
}
/**
* Updates the visibility of views depending on whether we will show the expanded or collapsed
* search view. This helps prevent some jank with the crossfading if we are animating.
*
* @param isExpand Whether we are about to show the expanded search box.
*/
private void updateVisibility(boolean isExpand) {
int collapsedViewVisibility = isExpand ? View.GONE : View.VISIBLE;
int expandedViewVisibility = isExpand ? View.VISIBLE : View.GONE;
mSearchIcon.setVisibility(collapsedViewVisibility);
mCollapsedSearchBox.setVisibility(collapsedViewVisibility);
mVoiceSearchButtonView.setVisibility(collapsedViewVisibility);
mOverflowButtonView.setVisibility(collapsedViewVisibility);
mBackButtonView.setVisibility(expandedViewVisibility);
// TODO: Prevents keyboard from jumping up in landscape mode after exiting the
// SearchFragment when the query string is empty. More elegant fix?
//mExpandedSearchBox.setVisibility(expandedViewVisibility);
if (TextUtils.isEmpty(mSearchView.getText())) {
mClearButtonView.setVisibility(View.GONE);
} else {
mClearButtonView.setVisibility(expandedViewVisibility);
}
}
private void prepareAnimator(final boolean expand) {
if (mAnimator != null) {
mAnimator.cancel();
}
mAnimator.addUpdateListener(new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
final Float fraction = (Float) animation.getAnimatedValue();
setMargins(fraction);
}
});
mAnimator.setDuration(ANIMATION_DURATION);
mAnimator.start();
}
public boolean isExpanded() {
return mIsExpanded;
}
public boolean isFadedOut() {
return mIsFadedOut;
}
/**
* Assigns margins to the search box as a fraction of its maximum margin size
*
* @param fraction How large the margins should be as a fraction of their full size
*/
private void setMargins(float fraction) {
MarginLayoutParams params = (MarginLayoutParams) getLayoutParams();
params.topMargin = (int) (mTopMargin * fraction);
params.bottomMargin = (int) (mBottomMargin * fraction);
params.leftMargin = (int) (mLeftMargin * fraction);
params.rightMargin = (int) (mRightMargin * fraction);
requestLayout();
}
}
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