Source code
package android.support.v7.widget;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Build.VERSION;
import android.support.v7.appcompat.R;
import android.support.v7.internal.text.AllCapsTransformationMethod;
import android.support.v7.internal.widget.TintInfo;
import android.support.v7.internal.widget.TintManager;
import android.util.AttributeSet;
import android.widget.TextView;
class AppCompatTextHelper {
private static final int[] TEXT_APPEARANCE_ATTRS = new int[]{R.attr.textAllCaps};
private static final int[] VIEW_ATTRS = new int[]{16842804, 16843119, 16843117, 16843120, 16843118};
private TintInfo mDrawableBottomTint;
private TintInfo mDrawableLeftTint;
private TintInfo mDrawableRightTint;
private TintInfo mDrawableTopTint;
final TextView mView;
static AppCompatTextHelper create(TextView textView) {
if (VERSION.SDK_INT >= 17) {
return new AppCompatTextHelperV17(textView);
}
return new AppCompatTextHelper(textView);
}
AppCompatTextHelper(TextView view) {
this.mView = view;
}
void loadFromAttributes(AttributeSet attrs, int defStyleAttr) {
Context context = this.mView.getContext();
TintManager tintManager = TintManager.get(context);
TypedArray a = context.obtainStyledAttributes(attrs, VIEW_ATTRS, defStyleAttr, 0);
int ap = a.getResourceId(0, -1);
if (a.hasValue(1)) {
this.mDrawableLeftTint = new TintInfo();
this.mDrawableLeftTint.mHasTintList = true;
this.mDrawableLeftTint.mTintList = tintManager.getTintList(a.getResourceId(1, 0));
}
if (a.hasValue(2)) {
this.mDrawableTopTint = new TintInfo();
this.mDrawableTopTint.mHasTintList = true;
this.mDrawableTopTint.mTintList = tintManager.getTintList(a.getResourceId(2, 0));
}
if (a.hasValue(3)) {
this.mDrawableRightTint = new TintInfo();
this.mDrawableRightTint.mHasTintList = true;
this.mDrawableRightTint.mTintList = tintManager.getTintList(a.getResourceId(3, 0));
}
if (a.hasValue(4)) {
this.mDrawableBottomTint = new TintInfo();
this.mDrawableBottomTint.mHasTintList = true;
this.mDrawableBottomTint.mTintList = tintManager.getTintList(a.getResourceId(4, 0));
}
a.recycle();
if (ap != -1) {
TypedArray appearance = context.obtainStyledAttributes(ap, R.styleable.TextAppearance);
if (appearance.hasValue(R.styleable.TextAppearance_textAllCaps)) {
setAllCaps(appearance.getBoolean(R.styleable.TextAppearance_textAllCaps, false));
}
appearance.recycle();
}
a = context.obtainStyledAttributes(attrs, TEXT_APPEARANCE_ATTRS, defStyleAttr, 0);
if (a.getBoolean(0, false)) {
setAllCaps(true);
}
a.recycle();
}
void onSetTextAppearance(Context context, int resId) {
TypedArray appearance = context.obtainStyledAttributes(resId, TEXT_APPEARANCE_ATTRS);
if (appearance.hasValue(0)) {
setAllCaps(appearance.getBoolean(0, false));
}
appearance.recycle();
}
void setAllCaps(boolean allCaps) {
this.mView.setTransformationMethod(allCaps ? new AllCapsTransformationMethod(this.mView.getContext()) : null);
}
void applyCompoundDrawablesTints() {
if (this.mDrawableLeftTint != null || this.mDrawableTopTint != null || this.mDrawableRightTint != null || this.mDrawableBottomTint != null) {
Drawable[] compoundDrawables = this.mView.getCompoundDrawables();
applyCompoundDrawableTint(compoundDrawables[0], this.mDrawableLeftTint);
applyCompoundDrawableTint(compoundDrawables[1], this.mDrawableTopTint);
applyCompoundDrawableTint(compoundDrawables[2], this.mDrawableRightTint);
applyCompoundDrawableTint(compoundDrawables[3], this.mDrawableBottomTint);
}
}
final void applyCompoundDrawableTint(Drawable drawable, TintInfo info) {
if (drawable != null && info != null) {
TintManager.tintDrawable(drawable, info, this.mView.getDrawableState());
}
}
}