/*
* Copyright 2016 Flipkart Internet Pvt. Ltd.
*
* 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.flipkart.android.proteus.parser;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.animation.Animation;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import com.flipkart.android.proteus.EventType;
import com.flipkart.android.proteus.builder.LayoutBuilder;
import com.flipkart.android.proteus.processor.DimensionAttributeProcessor;
import com.flipkart.android.proteus.processor.DrawableResourceProcessor;
import com.flipkart.android.proteus.processor.EventProcessor;
import com.flipkart.android.proteus.processor.JsonDataProcessor;
import com.flipkart.android.proteus.processor.StringAttributeProcessor;
import com.flipkart.android.proteus.processor.TweenAnimationResourceProcessor;
import com.flipkart.android.proteus.toolbox.ProteusConstants;
import com.flipkart.android.proteus.toolbox.Styles;
import com.flipkart.android.proteus.toolbox.Utils;
import com.flipkart.android.proteus.view.ProteusAndroidView;
import com.flipkart.android.proteus.view.ProteusView;
import com.flipkart.android.proteus.view.manager.ProteusViewManager;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import java.util.HashMap;
import java.util.Map;
/**
* @author kiran.kumar
*/
public class ViewParser<V extends View> extends Parser<V> {
private static final String TAG = "ViewParser";
private static final String ID_STRING_START_PATTERN = "@+id/";
private static final String ID_STRING_START_PATTERN1 = "@id/";
private static final String ID_STRING_NORMALIZED_PATTERN = ":id/";
@Override
public ProteusView createView(ViewGroup parent, JsonObject layout, JsonObject data, Styles styles, int index) {
return new ProteusAndroidView(parent.getContext());
}
protected void prepareHandlers() {
addHandler(Attributes.View.OnClick, new EventProcessor<V>() {
@Override
public void setOnEventListener(final V view, final JsonElement attributeValue) {
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
fireEvent((ProteusView) view, EventType.OnClick, attributeValue);
}
});
}
});
addHandler(Attributes.View.Background, new DrawableResourceProcessor<V>() {
@Override
public void setDrawable(V view, Drawable drawable) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
//noinspection deprecation
view.setBackgroundDrawable(drawable);
} else {
view.setBackground(drawable);
}
}
});
addHandler(Attributes.View.Height, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
if (layoutParams != null) {
layoutParams.height = (int) dimension;
view.setLayoutParams(layoutParams);
}
}
});
addHandler(Attributes.View.Width, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
if (layoutParams != null) {
layoutParams.width = (int) dimension;
view.setLayoutParams(layoutParams);
}
}
});
addHandler(Attributes.View.Weight, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
LinearLayout.LayoutParams layoutParams;
if (view.getLayoutParams() instanceof LinearLayout.LayoutParams) {
layoutParams = (LinearLayout.LayoutParams) view.getLayoutParams();
layoutParams.weight = ParseHelper.parseFloat(attributeValue);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, attributeKey + " is only supported for LinearLayouts");
}
}
}
});
addHandler(Attributes.View.LayoutGravity, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
if (layoutParams instanceof LinearLayout.LayoutParams) {
LinearLayout.LayoutParams linearLayoutParams = (LinearLayout.LayoutParams) layoutParams;
//noinspection ResourceType
linearLayoutParams.gravity = ParseHelper.parseGravity(attributeValue);
view.setLayoutParams(layoutParams);
} else if (layoutParams instanceof FrameLayout.LayoutParams) {
FrameLayout.LayoutParams linearLayoutParams = (FrameLayout.LayoutParams) layoutParams;
linearLayoutParams.gravity = ParseHelper.parseGravity(attributeValue);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, attributeKey + " is only supported for LinearLayout and FrameLayout");
}
}
}
});
addHandler(Attributes.View.Padding, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setPadding((int) dimension, (int) dimension, (int) dimension, (int) dimension);
}
});
addHandler(Attributes.View.PaddingLeft, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setPadding((int) dimension, view.getPaddingTop(), view.getPaddingRight(), view.getPaddingBottom());
}
});
addHandler(Attributes.View.PaddingTop, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setPadding(view.getPaddingLeft(), (int) dimension, view.getPaddingRight(), view.getPaddingBottom());
}
});
addHandler(Attributes.View.PaddingRight, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), (int) dimension, view.getPaddingBottom());
}
});
addHandler(Attributes.View.PaddingBottom, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setPadding(view.getPaddingLeft(), view.getPaddingTop(), view.getPaddingRight(), (int) dimension);
}
});
addHandler(Attributes.View.Margin, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
if (view.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
ViewGroup.MarginLayoutParams layoutParams;
layoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
layoutParams.setMargins((int) dimension, (int) dimension, (int) dimension, (int) dimension);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, "margins can only be applied to views with parent ViewGroup");
}
}
}
});
addHandler(Attributes.View.MarginLeft, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
if (view.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
ViewGroup.MarginLayoutParams layoutParams;
layoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
layoutParams.setMargins((int) dimension, layoutParams.topMargin, layoutParams.rightMargin, layoutParams.bottomMargin);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, "margins can only be applied to views with parent ViewGroup");
}
}
}
});
addHandler(Attributes.View.MarginTop, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
if (view.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
ViewGroup.MarginLayoutParams layoutParams;
layoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
layoutParams.setMargins(layoutParams.leftMargin, (int) dimension, layoutParams.rightMargin, layoutParams.bottomMargin);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, "margins can only be applied to views with parent ViewGroup");
}
}
}
});
addHandler(Attributes.View.MarginRight, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
if (view.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
ViewGroup.MarginLayoutParams layoutParams;
layoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
layoutParams.setMargins(layoutParams.leftMargin, layoutParams.topMargin, (int) dimension, layoutParams.bottomMargin);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, "margins can only be applied to views with parent ViewGroup");
}
}
}
});
addHandler(Attributes.View.MarginBottom, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
if (view.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
ViewGroup.MarginLayoutParams layoutParams;
layoutParams = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
layoutParams.setMargins(layoutParams.leftMargin, layoutParams.topMargin, layoutParams.rightMargin, (int) dimension);
view.setLayoutParams(layoutParams);
} else {
if (ProteusConstants.isLoggingEnabled()) {
Log.e(TAG, "margins can only be applied to views with parent ViewGroup");
}
}
}
});
addHandler(Attributes.View.MinHeight, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setMinimumHeight((int) dimension);
}
});
addHandler(Attributes.View.MinWidth, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
view.setMinimumWidth((int) dimension);
}
});
addHandler(Attributes.View.Elevation, new DimensionAttributeProcessor<V>() {
@Override
public void setDimension(float dimension, V view, String key, JsonElement value) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
view.setElevation(dimension);
}
}
});
addHandler(Attributes.View.Alpha, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
view.setAlpha(ParseHelper.parseFloat(attributeValue));
}
});
addHandler(Attributes.View.Visibility, new JsonDataProcessor<V>() {
@Override
public void handle(String key, JsonElement value, V view) {
// noinspection ResourceType
view.setVisibility(ParseHelper.parseVisibility(value));
}
});
addHandler(Attributes.View.Invisibility, new JsonDataProcessor<V>() {
@Override
public void handle(String key, JsonElement value, V view) {
// noinspection ResourceType
view.setVisibility(ParseHelper.parseInvisibility(value));
}
});
addHandler(Attributes.View.Id, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, final V view) {
if (view instanceof ProteusView) {
view.setId(((ProteusView) view).getViewManager().getUniqueViewId(attributeValue));
}
// set view id resource name
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
final String resourceName = attributeValue;
view.setAccessibilityDelegate(new View.AccessibilityDelegate() {
@Override
public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(host, info);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
String normalizedResourceName;
if (!TextUtils.isEmpty(resourceName)) {
String id;
if (resourceName.startsWith(ID_STRING_START_PATTERN)) {
id = resourceName.substring(ID_STRING_START_PATTERN.length());
} else if (resourceName.startsWith(ID_STRING_START_PATTERN1)) {
id = resourceName.substring(ID_STRING_START_PATTERN1.length());
} else {
id = resourceName;
}
normalizedResourceName = view.getContext().getPackageName() + ID_STRING_NORMALIZED_PATTERN + id;
} else {
normalizedResourceName = "";
}
info.setViewIdResourceName(normalizedResourceName);
}
}
});
}
}
});
addHandler(Attributes.View.ContentDescription, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
view.setContentDescription(attributeValue);
}
});
addHandler(Attributes.View.Clickable, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
boolean clickable = ParseHelper.parseBoolean(attributeValue);
view.setClickable(clickable);
}
});
addHandler(Attributes.View.Tag, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
view.setTag(attributeValue);
}
});
addHandler(Attributes.View.Border, new JsonDataProcessor<V>() {
@Override
public void handle(String key, JsonElement value, V view) {
Drawable border = Utils.getBorderDrawable(value, view.getContext());
if (border == null) {
return;
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
//noinspection deprecation
view.setBackgroundDrawable(border);
} else {
view.setBackground(border);
}
}
});
addHandler(Attributes.View.Enabled, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
boolean enabled = ParseHelper.parseBoolean(attributeValue);
view.setEnabled(enabled);
}
});
addHandler(Attributes.View.Style, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
ProteusViewManager viewManager = ((ProteusView) view).getViewManager();
Styles styles = viewManager.getStyles();
LayoutHandler handler = viewManager.getLayoutBuilder().getHandler(Utils.getPropertyAsString(viewManager.getLayout(), ProteusConstants.TYPE));
if (styles == null) {
return;
}
String[] styleSet = attributeValue.split(ProteusConstants.STYLE_DELIMITER);
for (String styleName : styleSet) {
if (styles.contains(styleName)) {
process(styles.getStyle(styleName), viewManager.getLayout(), (ProteusView) view, (handler != null ? handler : ViewParser.this), viewManager.getLayoutBuilder());
}
}
}
private void process(Map<String, JsonElement> style, JsonObject layout, ProteusView proteusView, LayoutHandler handler, LayoutBuilder builder) {
for (Map.Entry<String, JsonElement> attribute : style.entrySet()) {
if (layout.has(attribute.getKey())) {
continue;
}
builder.handleAttribute(handler, proteusView, attribute.getKey(), attribute.getValue());
}
}
});
addHandler(Attributes.View.TransitionName, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
view.setTransitionName(attributeValue);
}
}
});
addHandler(Attributes.View.RequiresFadingEdge, new StringAttributeProcessor<V>() {
private final String NONE = "none";
private final String BOTH = "both";
private final String VERTICAL = "vertical";
private final String HORIZONTAL = "horizontal";
@Override
public void handle(String attributeKey, String attributeValue,
V view) {
switch (attributeValue) {
case NONE:
view.setVerticalFadingEdgeEnabled(false);
view.setHorizontalFadingEdgeEnabled(false);
break;
case BOTH:
view.setVerticalFadingEdgeEnabled(true);
view.setHorizontalFadingEdgeEnabled(true);
break;
case VERTICAL:
view.setVerticalFadingEdgeEnabled(true);
view.setHorizontalFadingEdgeEnabled(false);
break;
case HORIZONTAL:
view.setVerticalFadingEdgeEnabled(false);
view.setHorizontalFadingEdgeEnabled(true);
break;
default:
view.setVerticalFadingEdgeEnabled(false);
view.setHorizontalFadingEdgeEnabled(false);
break;
}
}
});
addHandler(Attributes.View.FadingEdgeLength, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue,
V view) {
view.setFadingEdgeLength(ParseHelper.parseInt(attributeValue));
}
});
final HashMap<String, Integer> relativeLayoutParams = new HashMap<>();
relativeLayoutParams.put(Attributes.View.Above.getName(), RelativeLayout.ABOVE);
relativeLayoutParams.put(Attributes.View.AlignBaseline.getName(), RelativeLayout.ALIGN_BASELINE);
relativeLayoutParams.put(Attributes.View.AlignBottom.getName(), RelativeLayout.ALIGN_BOTTOM);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
relativeLayoutParams.put(Attributes.View.AlignEnd.getName(), RelativeLayout.ALIGN_END);
}
relativeLayoutParams.put(Attributes.View.AlignLeft.getName(), RelativeLayout.ALIGN_LEFT);
relativeLayoutParams.put(Attributes.View.AlignParentBottom.getName(), RelativeLayout.ALIGN_PARENT_BOTTOM);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
relativeLayoutParams.put(Attributes.View.AlignParentEnd.getName(), RelativeLayout.ALIGN_PARENT_END);
}
relativeLayoutParams.put(Attributes.View.AlignParentLeft.getName(), RelativeLayout.ALIGN_PARENT_LEFT);
relativeLayoutParams.put(Attributes.View.AlignParentRight.getName(), RelativeLayout.ALIGN_PARENT_RIGHT);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
relativeLayoutParams.put(Attributes.View.AlignParentStart.getName(), RelativeLayout.ALIGN_PARENT_START);
}
relativeLayoutParams.put(Attributes.View.AlignParentTop.getName(), RelativeLayout.ALIGN_PARENT_TOP);
relativeLayoutParams.put(Attributes.View.AlignRight.getName(), RelativeLayout.ALIGN_RIGHT);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
relativeLayoutParams.put(Attributes.View.AlignStart.getName(), RelativeLayout.ALIGN_START);
}
relativeLayoutParams.put(Attributes.View.AlignTop.getName(), RelativeLayout.ALIGN_TOP);
relativeLayoutParams.put(Attributes.View.Below.getName(), RelativeLayout.BELOW);
relativeLayoutParams.put(Attributes.View.CenterHorizontal.getName(), RelativeLayout.CENTER_HORIZONTAL);
relativeLayoutParams.put(Attributes.View.CenterInParent.getName(), RelativeLayout.CENTER_IN_PARENT);
relativeLayoutParams.put(Attributes.View.CenterVertical.getName(), RelativeLayout.CENTER_VERTICAL);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
relativeLayoutParams.put(Attributes.View.ToEndOf.getName(), RelativeLayout.END_OF);
}
relativeLayoutParams.put(Attributes.View.ToLeftOf.getName(), RelativeLayout.LEFT_OF);
relativeLayoutParams.put(Attributes.View.ToRightOf.getName(), RelativeLayout.RIGHT_OF);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
relativeLayoutParams.put(Attributes.View.ToStartOf.getName(), RelativeLayout.START_OF);
}
StringAttributeProcessor<V> relativeLayoutProcessor = new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
if (view instanceof ProteusView) {
int id = ((ProteusView) view).getViewManager().getUniqueViewId(attributeValue);
Integer rule = relativeLayoutParams.get(attributeKey);
if (rule != null) {
ParseHelper.addRelativeLayoutRule(view, rule, id);
}
}
}
};
StringAttributeProcessor<V> relativeLayoutBooleanProcessor = new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
int trueOrFalse = ParseHelper.parseRelativeLayoutBoolean(attributeValue);
Integer rule = relativeLayoutParams.get(attributeKey);
if (rule != null) {
ParseHelper.addRelativeLayoutRule(view, rule, trueOrFalse);
}
}
};
addHandler(Attributes.View.Above, relativeLayoutProcessor);
addHandler(Attributes.View.AlignBaseline, relativeLayoutProcessor);
addHandler(Attributes.View.AlignBottom, relativeLayoutProcessor);
addHandler(Attributes.View.AlignEnd, relativeLayoutProcessor);
addHandler(Attributes.View.AlignLeft, relativeLayoutProcessor);
addHandler(Attributes.View.AlignRight, relativeLayoutProcessor);
addHandler(Attributes.View.AlignStart, relativeLayoutProcessor);
addHandler(Attributes.View.AlignTop, relativeLayoutProcessor);
addHandler(Attributes.View.Below, relativeLayoutProcessor);
addHandler(Attributes.View.ToEndOf, relativeLayoutProcessor);
addHandler(Attributes.View.ToLeftOf, relativeLayoutProcessor);
addHandler(Attributes.View.ToRightOf, relativeLayoutProcessor);
addHandler(Attributes.View.ToStartOf, relativeLayoutProcessor);
addHandler(Attributes.View.AlignParentBottom, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.AlignParentEnd, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.AlignParentLeft, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.AlignParentRight, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.AlignParentStart, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.AlignParentTop, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.CenterHorizontal, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.CenterInParent, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.CenterVertical, relativeLayoutBooleanProcessor);
addHandler(Attributes.View.Animation, new TweenAnimationResourceProcessor<V>() {
@Override
public void setAnimation(V view, Animation animation) {
view.setAnimation(animation);
}
});
addHandler(Attributes.View.TextAlignment, new StringAttributeProcessor<V>() {
@Override
public void handle(String attributeKey, String attributeValue, V view) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
Integer textAlignment = ParseHelper.parseTextAlignment(attributeValue);
if (null != textAlignment) {
//noinspection ResourceType
view.setTextAlignment(textAlignment);
}
}
}
});
}
@Override
public boolean handleChildren(ProteusView view) {
return false;
}
@Override
public boolean addView(ProteusView parent, ProteusView view) {
return false;
}
}