| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
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| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
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| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| |
| package org.mozc.android.inputmethod.japanese; |
| |
| import org.mozc.android.inputmethod.japanese.CandidateView.ConversionCandidateWordView; |
| import org.mozc.android.inputmethod.japanese.resources.R; |
| import org.mozc.android.inputmethod.japanese.ui.ConversionCandidateLayouter; |
| import com.google.common.base.Preconditions; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.ViewGroup; |
| import android.widget.ToggleButton; |
| |
| /** |
| * A container (ViewGroup) of candidate word view and input frame fold button. |
| * |
| * The fold button should be laid out based on candidate word view's internal state |
| * (candidate layouter), which is determined at layout flow. |
| * The initial implementation sets the button's layout parameter from onLayout method |
| * but setting layout parameter on layout flow (e.g. in onLayout() and onSizeChanged()) |
| * causes unexpected behavior (e.g. infinite loop). |
| * This class is introduced to solve this issue. |
| * |
| * This class is a simple ViewGroup. The layout algorithm is fixed (layout .xml file doesn't affect |
| * anything) so {@link #onMeasure(int, int)} is omitted. |
| * First, candidate word view fills all the view. |
| * Second, input frame fold button is laid out based on ConversionCandidateLayouter's state |
| * (which cannot be accessed from standard view layouters. This is the reason why this class is |
| * introduced). |
| * The layout flow descibed above doesn't depend on {@link android.view.ViewGroup.LayoutParams} |
| * we can avoid from unexpected behavior. |
| */ |
| public class ConversionCandidateWordContainerView extends ViewGroup { |
| |
| private float foldingIconSize; |
| |
| public ConversionCandidateWordContainerView( |
| Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| public ConversionCandidateWordContainerView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public ConversionCandidateWordContainerView(Context context) { |
| super(context); |
| } |
| |
| void setCandidateTextDimension(float candidateTextSize) { |
| Preconditions.checkArgument(candidateTextSize > 0); |
| |
| foldingIconSize = getResources().getDimension(R.dimen.candidate_fold_icon_width); |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| // Note: Don't use getMeasuredHeight/Width for this and children because #onMeasure |
| // is omitted so they return invalid value. |
| ConversionCandidateWordView candidateWordView = |
| ConversionCandidateWordView.class.cast(findViewById(R.id.candidate_word_view)); |
| candidateWordView.layout(left, top, right, bottom); |
| ToggleButton inputFrameFoldButton = |
| ToggleButton.class.cast(findViewById(R.id.input_frame_fold_button)); |
| if (inputFrameFoldButton.getVisibility() != VISIBLE) { |
| return; |
| } |
| |
| ConversionCandidateLayouter layouter = candidateWordView.getCandidateLayouter(); |
| float topMargin = (layouter.getRowHeight() - foldingIconSize) / 2; |
| float rightMargin = (layouter.getChunkWidth() - foldingIconSize) / 2; |
| inputFrameFoldButton.layout((int) (right - rightMargin - foldingIconSize), |
| (int) (top + topMargin), |
| (int) (right - rightMargin), |
| (int) (top + topMargin + foldingIconSize)); |
| } |
| } |