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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.layoutlib.bridge.bars;
import com.android.ide.common.rendering.api.ILayoutLog;
import com.android.ide.common.rendering.api.RenderResources;
import com.android.ide.common.rendering.api.ResourceValue;
import com.android.ide.common.rendering.api.StyleResourceValue;
import com.android.layoutlib.bridge.Bridge;
import com.android.layoutlib.bridge.android.BridgeContext;
import com.android.layoutlib.bridge.android.BridgeXmlBlockParser;
import com.android.layoutlib.bridge.impl.ResourceHelper;
import com.android.layoutlib.bridge.resources.SysUiResources;
import com.android.resources.Density;
import com.android.resources.ResourceType;
import android.annotation.NonNull;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import static android.os._Original_Build.VERSION_CODES.LOLLIPOP;
/**
* Base "bar" class for the window decor around the edited layout.
* This is basically an horizontal layout that loads a given layout on creation (it is read
* through {@link Class#getResourceAsStream(String)}).
* <p>
* The given layout should be a merge layout so that all the children belong to this class directly.
* <p>
* It also provides a few utility methods to configure the content of the layout.
*/
abstract class CustomBar extends LinearLayout {
private final int mSimulatedPlatformVersion;
protected CustomBar(BridgeContext context, int orientation, String layoutName,
int simulatedPlatformVersion) {
super(context);
mSimulatedPlatformVersion = simulatedPlatformVersion;
setOrientation(orientation);
if (orientation == LinearLayout.HORIZONTAL) {
setGravity(Gravity.CENTER_VERTICAL);
} else {
setGravity(Gravity.CENTER_HORIZONTAL);
}
LayoutInflater inflater = LayoutInflater.from(mContext);
BridgeXmlBlockParser bridgeParser = loadXml(layoutName);
try {
inflater.inflate(bridgeParser, this, true);
} finally {
bridgeParser.ensurePopped();
}
}
protected abstract TextView getStyleableTextView();
protected BridgeXmlBlockParser loadXml(String layoutName) {
return SysUiResources.loadXml((BridgeContext) mContext, mSimulatedPlatformVersion,
layoutName);
}
protected ImageView loadIcon(ImageView imageView, String iconName, Density density, int color) {
return SysUiResources.loadIcon(mContext, mSimulatedPlatformVersion, imageView, iconName,
density, false, color);
}
protected ImageView loadIcon(int index, String iconName, Density density, boolean isRtl) {
View child = getChildAt(index);
if (child instanceof ImageView) {
ImageView imageView = (ImageView) child;
return SysUiResources.loadIcon(mContext, mSimulatedPlatformVersion, imageView, iconName,
density, isRtl, Color.WHITE);
}
return null;
}
protected TextView setText(int index, String string) {
View child = getChildAt(index);
if (child instanceof TextView) {
TextView textView = (TextView) child;
textView.setText(string);
return textView;
}
return null;
}
protected void setStyle(String themeEntryName) {
BridgeContext bridgeContext = getContext();
RenderResources res = bridgeContext.getRenderResources();
ResourceValue value =
res.findItemInTheme(BridgeContext.createFrameworkAttrReference(themeEntryName));
value = res.resolveResValue(value);
if (!(value instanceof StyleResourceValue)) {
return;
}
StyleResourceValue style = (StyleResourceValue) value;
// get the background
ResourceValue backgroundValue = res.findItemInStyle(style,
BridgeContext.createFrameworkAttrReference("background"));
backgroundValue = res.resolveResValue(backgroundValue);
if (backgroundValue != null) {
Drawable d = ResourceHelper.getDrawable(backgroundValue, bridgeContext);
if (d != null) {
setBackground(d);
}
}
TextView textView = getStyleableTextView();
if (textView != null) {
// get the text style
ResourceValue textStyleValue = res.findItemInStyle(style,
BridgeContext.createFrameworkAttrReference("titleTextStyle"));
textStyleValue = res.resolveResValue(textStyleValue);
if (textStyleValue instanceof StyleResourceValue) {
StyleResourceValue textStyle = (StyleResourceValue) textStyleValue;
ResourceValue textSize = res.findItemInStyle(textStyle,
BridgeContext.createFrameworkAttrReference("textSize"));
textSize = res.resolveResValue(textSize);
if (textSize != null) {
TypedValue out = new TypedValue();
if (ResourceHelper.parseFloatAttribute("textSize", textSize.getValue(), out,
true /*requireUnit*/)) {
textView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
out.getDimension(bridgeContext.getResources().getDisplayMetrics()));
}
}
ResourceValue textColor = res.findItemInStyle(textStyle,
BridgeContext.createFrameworkAttrReference("textColor"));
textColor = res.resolveResValue(textColor);
if (textColor != null) {
ColorStateList stateList =
ResourceHelper.getColorStateList(textColor, bridgeContext, null);
if (stateList != null) {
textView.setTextColor(stateList);
}
}
}
}
}
@Override
public BridgeContext getContext() {
return (BridgeContext) mContext;
}
/**
* Find the background color for this bar from the theme attributes. Only relevant to StatusBar
* and NavigationBar.
* <p/>
* Returns 0 if not found.
*
* @param colorAttrName the attribute name for the background color
* @param translucentAttrName the attribute name for the translucency property of the bar.
*
* @throws NumberFormatException if color resolved to an invalid string.
*/
protected int getBarColor(@NonNull String colorAttrName, @NonNull String translucentAttrName) {
if (!Config.isGreaterOrEqual(mSimulatedPlatformVersion, LOLLIPOP)) {
return 0;
}
RenderResources renderResources = getContext().getRenderResources();
// First check if the bar is translucent.
boolean translucent = ResourceHelper.getBooleanThemeFrameworkAttrValue(renderResources,
translucentAttrName, false);
if (translucent) {
// Keep in sync with R.color.system_bar_background_semi_transparent from system ui.
return 0x66000000; // 40% black.
}
boolean transparent = ResourceHelper.getBooleanThemeFrameworkAttrValue(renderResources,
"windowDrawsSystemBarBackgrounds", false);
if (transparent) {
return getColor(renderResources, colorAttrName);
}
return 0;
}
private static int getColor(RenderResources renderResources, String attr) {
// From ?attr/foo to @color/bar. This is most likely an StyleItemResourceValue.
ResourceValue resource =
renderResources.findItemInTheme(BridgeContext.createFrameworkAttrReference(attr));
// Form @color/bar to the #AARRGGBB
resource = renderResources.resolveResValue(resource);
if (resource != null) {
ResourceType type = resource.getResourceType();
if (type == ResourceType.STYLE_ITEM || type == ResourceType.COLOR) {
try {
return ResourceHelper.getColor(resource.getValue());
} catch (NumberFormatException e) {
// Conversion failed.
Bridge.getLog().warning(ILayoutLog.TAG_RESOURCES_FORMAT,
"Theme attribute @android:" + attr +
" does not reference a color, instead is '" +
resource.getValue() + "'.", null, resource);
}
}
}
return 0;
}
}
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