michael@0: /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.widget;
michael@0: 
michael@0: import org.mozilla.gecko.R;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.content.res.TypedArray;
michael@0: import android.util.AttributeSet;
michael@0: import android.widget.TextView;
michael@0: 
michael@0: /**
michael@0:  * Text view that correctly handles maxLines and ellipsizing for Android < 2.3.
michael@0:  */
michael@0: public class EllipsisTextView extends TextView {
michael@0:     private final String ellipsis;
michael@0: 
michael@0:     private int maxLines;
michael@0:     private CharSequence originalText;
michael@0: 
michael@0:     public EllipsisTextView(Context context) {
michael@0:         this(context, null);
michael@0:     }
michael@0: 
michael@0:     public EllipsisTextView(Context context, AttributeSet attrs) {
michael@0:         this(context, attrs, android.R.attr.textViewStyle);
michael@0:     }
michael@0: 
michael@0:     public EllipsisTextView(Context context, AttributeSet attrs, int defStyle) {
michael@0:         super(context, attrs, defStyle);
michael@0: 
michael@0:         ellipsis = getResources().getString(R.string.ellipsis);
michael@0: 
michael@0:         TypedArray a = context.getTheme()
michael@0:             .obtainStyledAttributes(attrs, R.styleable.EllipsisTextView, 0, 0);
michael@0:         maxLines = a.getInteger(R.styleable.EllipsisTextView_ellipsizeAtLine, 1);
michael@0:         a.recycle();
michael@0:     }
michael@0: 
michael@0:     public void setOriginalText(CharSequence text) {
michael@0:         originalText = text;
michael@0:         setText(text);
michael@0:     }
michael@0: 
michael@0:     @Override
michael@0:     public void onLayout(boolean changed, int left, int top, int right, int bottom) {
michael@0:         super.onLayout(changed, left, top, right, bottom);
michael@0: 
michael@0:         // There is extra space, start over with the original text
michael@0:         if (getLineCount() < maxLines) {
michael@0:             setText(originalText);
michael@0:         }
michael@0: 
michael@0:         // If we are over the max line attribute, ellipsize
michael@0:         if (getLineCount() > maxLines) {
michael@0:             final int endIndex = getLayout().getLineEnd(maxLines - 1) - 1 - ellipsis.length();
michael@0:             final String text = getText().subSequence(0, endIndex) + ellipsis;
michael@0:             // Make sure that we don't change originalText
michael@0:             setText(text);
michael@0:         }
michael@0:     }
michael@0: }