mobile/android/base/widget/EllipsisTextView.java

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/mobile/android/base/widget/EllipsisTextView.java	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,65 @@
     1.4 +/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +package org.mozilla.gecko.widget;
    1.10 +
    1.11 +import org.mozilla.gecko.R;
    1.12 +
    1.13 +import android.content.Context;
    1.14 +import android.content.res.TypedArray;
    1.15 +import android.util.AttributeSet;
    1.16 +import android.widget.TextView;
    1.17 +
    1.18 +/**
    1.19 + * Text view that correctly handles maxLines and ellipsizing for Android < 2.3.
    1.20 + */
    1.21 +public class EllipsisTextView extends TextView {
    1.22 +    private final String ellipsis;
    1.23 +
    1.24 +    private int maxLines;
    1.25 +    private CharSequence originalText;
    1.26 +
    1.27 +    public EllipsisTextView(Context context) {
    1.28 +        this(context, null);
    1.29 +    }
    1.30 +
    1.31 +    public EllipsisTextView(Context context, AttributeSet attrs) {
    1.32 +        this(context, attrs, android.R.attr.textViewStyle);
    1.33 +    }
    1.34 +
    1.35 +    public EllipsisTextView(Context context, AttributeSet attrs, int defStyle) {
    1.36 +        super(context, attrs, defStyle);
    1.37 +
    1.38 +        ellipsis = getResources().getString(R.string.ellipsis);
    1.39 +
    1.40 +        TypedArray a = context.getTheme()
    1.41 +            .obtainStyledAttributes(attrs, R.styleable.EllipsisTextView, 0, 0);
    1.42 +        maxLines = a.getInteger(R.styleable.EllipsisTextView_ellipsizeAtLine, 1);
    1.43 +        a.recycle();
    1.44 +    }
    1.45 +
    1.46 +    public void setOriginalText(CharSequence text) {
    1.47 +        originalText = text;
    1.48 +        setText(text);
    1.49 +    }
    1.50 +
    1.51 +    @Override
    1.52 +    public void onLayout(boolean changed, int left, int top, int right, int bottom) {
    1.53 +        super.onLayout(changed, left, top, right, bottom);
    1.54 +
    1.55 +        // There is extra space, start over with the original text
    1.56 +        if (getLineCount() < maxLines) {
    1.57 +            setText(originalText);
    1.58 +        }
    1.59 +
    1.60 +        // If we are over the max line attribute, ellipsize
    1.61 +        if (getLineCount() > maxLines) {
    1.62 +            final int endIndex = getLayout().getLineEnd(maxLines - 1) - 1 - ellipsis.length();
    1.63 +            final String text = getText().subSequence(0, endIndex) + ellipsis;
    1.64 +            // Make sure that we don't change originalText
    1.65 +            setText(text);
    1.66 +        }
    1.67 +    }
    1.68 +}

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