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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 package org.chromium.ui; | |
| 6 | |
| 7 import android.content.Context; | |
| 8 import android.graphics.Color; | |
| 9 import android.graphics.drawable.GradientDrawable; | |
| 10 import android.graphics.drawable.LayerDrawable; | |
| 11 import android.text.TextUtils; | |
| 12 import android.view.View; | |
| 13 import android.view.ViewGroup; | |
| 14 import android.widget.AbsListView; | |
| 15 import android.widget.BaseAdapter; | |
| 16 import android.widget.LinearLayout; | |
| 17 | |
| 18 import org.chromium.base.ApiCompatibilityUtils; | |
| 19 | |
| 20 /** | |
| 21 * The adapter used to populate ColorPickerSimple. | |
| 22 */ | |
| 23 public class ColorSuggestionListAdapter extends BaseAdapter implements View.OnCl
ickListener { | |
| 24 private Context mContext; | |
| 25 private ColorSuggestion[] mSuggestions; | |
| 26 private OnColorSuggestionClickListener mListener; | |
| 27 | |
| 28 /** | |
| 29 * The callback used to indicate the user has clicked on a suggestion. | |
| 30 */ | |
| 31 public interface OnColorSuggestionClickListener { | |
| 32 | |
| 33 /** | |
| 34 * Called upon a click on a suggestion. | |
| 35 * | |
| 36 * @param suggestion The suggestion that was clicked. | |
| 37 */ | |
| 38 void onColorSuggestionClick(ColorSuggestion suggestion); | |
| 39 } | |
| 40 | |
| 41 private static final int COLORS_PER_ROW = 4; | |
| 42 | |
| 43 ColorSuggestionListAdapter(Context context, ColorSuggestion[] suggestions) { | |
| 44 mContext = context; | |
| 45 mSuggestions = suggestions; | |
| 46 } | |
| 47 | |
| 48 /** | |
| 49 * Sets the listener that will be notified upon a click on a suggestion. | |
| 50 */ | |
| 51 public void setOnColorSuggestionClickListener(OnColorSuggestionClickListener
listener) { | |
| 52 mListener = listener; | |
| 53 } | |
| 54 | |
| 55 /** | |
| 56 * Sets up the color button to represent a color suggestion. | |
| 57 * | |
| 58 * @param button The button view to set up. | |
| 59 * @param index The index of the suggestion in mSuggestions. | |
| 60 */ | |
| 61 private void setUpColorButton(View button, int index) { | |
| 62 if (index >= mSuggestions.length) { | |
| 63 button.setTag(null); | |
| 64 button.setContentDescription(null); | |
| 65 button.setVisibility(View.INVISIBLE); | |
| 66 return; | |
| 67 } | |
| 68 button.setTag(mSuggestions[index]); | |
| 69 button.setVisibility(View.VISIBLE); | |
| 70 ColorSuggestion suggestion = mSuggestions[index]; | |
| 71 LayerDrawable layers = (LayerDrawable) button.getBackground(); | |
| 72 GradientDrawable swatch = | |
| 73 (GradientDrawable) layers.findDrawableByLayerId(R.id.color_butto
n_swatch); | |
| 74 swatch.setColor(suggestion.mColor); | |
| 75 String description = suggestion.mLabel; | |
| 76 if (TextUtils.isEmpty(description)) { | |
| 77 description = String.format("#%06X", (0xFFFFFF & suggestion.mColor))
; | |
| 78 } | |
| 79 button.setContentDescription(description); | |
| 80 button.setOnClickListener(this); | |
| 81 } | |
| 82 | |
| 83 @Override | |
| 84 public void onClick(View v) { | |
| 85 if (mListener == null) { | |
| 86 return; | |
| 87 } | |
| 88 ColorSuggestion suggestion = (ColorSuggestion) v.getTag(); | |
| 89 if (suggestion == null) { | |
| 90 return; | |
| 91 } | |
| 92 mListener.onColorSuggestionClick(suggestion); | |
| 93 } | |
| 94 | |
| 95 @Override | |
| 96 public View getView(int position, View convertView, ViewGroup parent) { | |
| 97 LinearLayout layout; | |
| 98 if (convertView instanceof LinearLayout) { | |
| 99 layout = (LinearLayout) convertView; | |
| 100 } else { | |
| 101 layout = new LinearLayout(mContext); | |
| 102 layout.setLayoutParams(new AbsListView.LayoutParams( | |
| 103 AbsListView.LayoutParams.MATCH_PARENT, | |
| 104 AbsListView.LayoutParams.WRAP_CONTENT)); | |
| 105 layout.setOrientation(LinearLayout.HORIZONTAL); | |
| 106 layout.setBackgroundColor(Color.WHITE); | |
| 107 int buttonHeight = | |
| 108 mContext.getResources().getDimensionPixelOffset(R.dimen.colo
r_button_height); | |
| 109 for (int i = 0; i < COLORS_PER_ROW; ++i) { | |
| 110 View button = new View(mContext); | |
| 111 LinearLayout.LayoutParams layoutParams = | |
| 112 new LinearLayout.LayoutParams(0, buttonHeight, 1f); | |
| 113 ApiCompatibilityUtils.setMarginStart(layoutParams, -1); | |
| 114 if (i == COLORS_PER_ROW - 1) { | |
| 115 ApiCompatibilityUtils.setMarginEnd(layoutParams, -1); | |
| 116 } | |
| 117 button.setLayoutParams(layoutParams); | |
| 118 button.setBackgroundResource(R.drawable.color_button_background)
; | |
| 119 layout.addView(button); | |
| 120 } | |
| 121 } | |
| 122 for (int i = 0; i < COLORS_PER_ROW; ++i) { | |
| 123 setUpColorButton(layout.getChildAt(i), position * COLORS_PER_ROW + i
); | |
| 124 } | |
| 125 return layout; | |
| 126 } | |
| 127 | |
| 128 @Override | |
| 129 public long getItemId(int position) { | |
| 130 return position; | |
| 131 } | |
| 132 | |
| 133 @Override | |
| 134 public Object getItem(int position) { | |
| 135 return null; | |
| 136 } | |
| 137 | |
| 138 @Override | |
| 139 public int getCount() { | |
| 140 return (mSuggestions.length + COLORS_PER_ROW - 1) / COLORS_PER_ROW; | |
| 141 } | |
| 142 } | |
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Chromium Code Reviews
Issue 2398543003:
Move Android view based ColorPicker from ui/ to components/ (Closed)
