49 lines
1.6 KiB
Java
49 lines
1.6 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko.widget;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.text.Layout;
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import android.util.AttributeSet;
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import org.mozilla.gecko.R;
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import org.mozilla.gecko.widget.themed.ThemedTextView;
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/**
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* An implementation of FadedTextView should fade the end of the text
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* by gecko:fadeWidth amount, if the text is too long and requires an ellipsis.
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*/
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public abstract class FadedTextView extends ThemedTextView {
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// Width of the fade effect from end of the view.
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protected final int fadeWidth;
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public FadedTextView(final Context context, final AttributeSet attrs) {
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super(context, attrs);
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setSingleLine(true);
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setEllipsize(null);
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final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FadedTextView);
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fadeWidth = a.getDimensionPixelSize(R.styleable.FadedTextView_fadeWidth, 0);
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a.recycle();
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}
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protected int getAvailableWidth() {
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return getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight();
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}
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protected boolean needsEllipsis() {
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final int width = getAvailableWidth();
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if (width <= 0) {
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return false;
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}
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final Layout layout = getLayout();
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return (layout != null && layout.getLineWidth(0) > width);
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}
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}
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