The Tor Browser: mobile/android/base/widget/FlowLayout.java@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,

     3  * You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 package org.mozilla.gecko.widget;

     7 import org.mozilla.gecko.R;

     9 import android.content.Context;

    10 import android.content.res.TypedArray;

    11 import android.util.AttributeSet;

    12 import android.view.View;

    13 import android.view.ViewGroup;

    15 public class FlowLayout extends ViewGroup {

    16     private int mSpacing;

    18     public FlowLayout(Context context) {

    19         super(context);

    20     }

    22     public FlowLayout(Context context, AttributeSet attrs) {

    23         super(context, attrs);

    24         TypedArray a = context.obtainStyledAttributes(attrs, org.mozilla.gecko.R.styleable.FlowLayout);

    25         mSpacing = a.getDimensionPixelSize(R.styleable.FlowLayout_spacing, (int) context.getResources().getDimension(R.dimen.flow_layout_spacing));

    26         a.recycle();

    27     }

    29     @Override

    30     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

    31         final int parentWidth = MeasureSpec.getSize(widthMeasureSpec);

    32         final int childCount = getChildCount();

    33         int rowWidth = 0;

    34         int totalWidth = 0;

    35         int totalHeight = 0;

    36         boolean firstChild = true;

    38         for (int i = 0; i < childCount; i++) {

    39             final View child = getChildAt(i);

    40             if (child.getVisibility() == GONE)

    41                 continue;

    43             measureChild(child, widthMeasureSpec, heightMeasureSpec);

    45             final int childWidth = child.getMeasuredWidth();

    46             final int childHeight = child.getMeasuredHeight();

    48             if (firstChild || (rowWidth + childWidth > parentWidth)) {

    49                 rowWidth = 0;

    50                 totalHeight += childHeight;

    51                 if (!firstChild)

    52                     totalHeight += mSpacing;

    53                 firstChild = false;

    54             }

    56             rowWidth += childWidth;

    58             if (rowWidth > totalWidth)

    59                 totalWidth = rowWidth;

    61             rowWidth += mSpacing;

    62         }

    64         setMeasuredDimension(totalWidth, totalHeight);

    65     }

    67     @Override

    68     protected void onLayout(boolean changed, int l, int t, int r, int b) {

    69         final int childCount = getChildCount();

    70         final int totalWidth = r - l;

    71         int x = 0;

    72         int y = 0;

    73         int prevChildHeight = 0;

    75         for (int i = 0; i < childCount; i++) {

    76             final View child = getChildAt(i);

    77             if (child.getVisibility() == GONE)

    78                 continue;

    80             final int childWidth = child.getMeasuredWidth();

    81             final int childHeight = child.getMeasuredHeight();

    82             if (x + childWidth > totalWidth) {

    83                 x = 0;

    84                 y += prevChildHeight + mSpacing;

    85             }

    86             prevChildHeight = childHeight;

    87             child.layout(x, y, x + childWidth, y + childHeight);

    88             x += childWidth + mSpacing;

    89         }

    90     }

    91 }

The Tor Browser / file revision

mobile/android/base/widget/FlowLayout.java@6474c204b198

mobile/android/base/widget/FlowLayout.java