| /* |
| * Copyright (C) 2015 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 android.databinding.tool.expr; |
| |
| import android.databinding.tool.BindingTarget; |
| import android.databinding.tool.reflection.ModelAnalyzer; |
| import android.databinding.tool.reflection.ModelClass; |
| import android.databinding.tool.writer.KCode; |
| import android.databinding.tool.writer.LayoutBinderWriterKt; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class ResourceExpr extends Expr { |
| |
| private final static Map<String, String> RESOURCE_TYPE_TO_R_OBJECT; |
| static { |
| RESOURCE_TYPE_TO_R_OBJECT = new HashMap<String, String>(); |
| RESOURCE_TYPE_TO_R_OBJECT.put("colorStateList", "color "); |
| RESOURCE_TYPE_TO_R_OBJECT.put("dimenOffset", "dimen "); |
| RESOURCE_TYPE_TO_R_OBJECT.put("dimenSize", "dimen "); |
| RESOURCE_TYPE_TO_R_OBJECT.put("intArray", "array "); |
| RESOURCE_TYPE_TO_R_OBJECT.put("stateListAnimator", "animator "); |
| RESOURCE_TYPE_TO_R_OBJECT.put("stringArray", "array "); |
| RESOURCE_TYPE_TO_R_OBJECT.put("typedArray", "array"); |
| } |
| // lazily initialized |
| private Map<String, ModelClass> mResourceToTypeMapping; |
| |
| protected final String mPackage; |
| |
| protected final String mResourceType; |
| |
| protected final String mResourceId; |
| |
| protected final BindingTarget mTarget; |
| |
| public ResourceExpr(BindingTarget target, String packageName, String resourceType, |
| String resourceName, List<Expr> args) { |
| super(args); |
| mTarget = target; |
| if ("android".equals(packageName)) { |
| mPackage = "android."; |
| } else { |
| mPackage = ""; |
| } |
| mResourceType = resourceType; |
| mResourceId = resourceName; |
| } |
| |
| private Map<String, ModelClass> getResourceToTypeMapping(ModelAnalyzer modelAnalyzer) { |
| if (mResourceToTypeMapping == null) { |
| final Map<String, String> imports = getModel().getImports(); |
| mResourceToTypeMapping = new HashMap<String, ModelClass>(); |
| mResourceToTypeMapping.put("anim", modelAnalyzer.findClass("android.view.animation.Animation", |
| imports)); |
| mResourceToTypeMapping.put("animator", modelAnalyzer.findClass("android.animation.Animator", |
| imports)); |
| mResourceToTypeMapping.put("colorStateList", |
| modelAnalyzer.findClass("android.content.res.ColorStateList", |
| imports)); |
| mResourceToTypeMapping.put("drawable", modelAnalyzer.findClass("android.graphics.drawable.Drawable", |
| imports)); |
| mResourceToTypeMapping.put("stateListAnimator", |
| modelAnalyzer.findClass("android.animation.StateListAnimator", |
| imports)); |
| mResourceToTypeMapping.put("transition", modelAnalyzer.findClass("android.transition.Transition", |
| imports)); |
| mResourceToTypeMapping.put("typedArray", modelAnalyzer.findClass("android.content.res.TypedArray", |
| imports)); |
| mResourceToTypeMapping.put("interpolator", |
| modelAnalyzer.findClass("android.view.animation.Interpolator", imports)); |
| mResourceToTypeMapping.put("bool", modelAnalyzer.findClass(boolean.class)); |
| mResourceToTypeMapping.put("color", modelAnalyzer.findClass(int.class)); |
| mResourceToTypeMapping.put("dimenOffset", modelAnalyzer.findClass(int.class)); |
| mResourceToTypeMapping.put("dimenSize", modelAnalyzer.findClass(int.class)); |
| mResourceToTypeMapping.put("id", modelAnalyzer.findClass(int.class)); |
| mResourceToTypeMapping.put("integer", modelAnalyzer.findClass(int.class)); |
| mResourceToTypeMapping.put("layout", modelAnalyzer.findClass(int.class)); |
| mResourceToTypeMapping.put("dimen", modelAnalyzer.findClass(float.class)); |
| mResourceToTypeMapping.put("fraction", modelAnalyzer.findClass(float.class)); |
| mResourceToTypeMapping.put("intArray", modelAnalyzer.findClass(int[].class)); |
| mResourceToTypeMapping.put("string", modelAnalyzer.findClass(String.class)); |
| mResourceToTypeMapping.put("stringArray", modelAnalyzer.findClass(String[].class)); |
| } |
| return mResourceToTypeMapping; |
| } |
| |
| @Override |
| protected ModelClass resolveType(ModelAnalyzer modelAnalyzer) { |
| final Map<String, ModelClass> mapping = getResourceToTypeMapping( |
| modelAnalyzer); |
| final ModelClass modelClass = mapping.get(mResourceType); |
| if (modelClass != null) { |
| return modelClass; |
| } |
| if ("plurals".equals(mResourceType)) { |
| if (getChildren().isEmpty()) { |
| return modelAnalyzer.findClass(int.class); |
| } else { |
| return modelAnalyzer.findClass(String.class); |
| } |
| } |
| return modelAnalyzer.findClass(mResourceType, getModel().getImports()); |
| } |
| |
| @Override |
| protected List<Dependency> constructDependencies() { |
| return constructDynamicChildrenDependencies(); |
| } |
| |
| @Override |
| protected String computeUniqueKey() { |
| String base = toString(); |
| String view = ""; |
| if (requiresView()) { |
| view = LayoutBinderWriterKt.getFieldName(mTarget); |
| } |
| return join(base, view, computeChildrenKey()); |
| } |
| |
| @Override |
| protected KCode generateCode() { |
| return new KCode(toJava()); |
| } |
| |
| @Override |
| public Expr cloneToModel(ExprModel model) { |
| String pkg = mPackage.isEmpty() ? "" : "android"; |
| return model.resourceExpr(mTarget, pkg, mResourceType, mResourceId, |
| cloneToModel(model, getChildren())); |
| } |
| |
| public String getResourceId() { |
| return mPackage + "R." + getResourceObject() + "." + mResourceId; |
| } |
| |
| @Override |
| public String getInvertibleError() { |
| return "Resources may not be the target of a two-way binding expression: " + |
| computeUniqueKey(); |
| } |
| |
| private boolean requiresView() { |
| return !mTarget.isBinder() && !("anim".equals(mResourceType) || |
| "animator".equals(mResourceType) || |
| "id".equals(mResourceType) || |
| "interpolator".equals(mResourceType) || |
| "layout".equals(mResourceType) || |
| "stateListAnimator".equals(mResourceType) || |
| "transition".equals(mResourceType)); |
| } |
| |
| public String toJava() { |
| final String context = "getRoot().getContext()"; |
| final String viewName = requiresView() ? LayoutBinderWriterKt.getFieldName(mTarget) : |
| "getRoot()"; |
| final String resources = viewName + ".getResources()"; |
| final String resourceName = mPackage + "R." + getResourceObject() + "." + mResourceId; |
| if ("anim".equals(mResourceType)) return "android.view.animation.AnimationUtils.loadAnimation(" + context + ", " + resourceName + ")"; |
| if ("animator".equals(mResourceType)) return "android.animation.AnimatorInflater.loadAnimator(" + context + ", " + resourceName + ")"; |
| if ("bool".equals(mResourceType)) return resources + ".getBoolean(" + resourceName + ")"; |
| if ("color".equals(mResourceType)) return "android.databinding.DynamicUtil.getColorFromResource(" + viewName + ", " + resourceName + ")"; |
| if ("colorStateList".equals(mResourceType)) return "android.databinding.DynamicUtil.getColorStateListFromResource(" + viewName + ", " + resourceName + ")"; |
| if ("dimen".equals(mResourceType)) return resources + ".getDimension(" + resourceName + ")"; |
| if ("dimenOffset".equals(mResourceType)) return resources + ".getDimensionPixelOffset(" + resourceName + ")"; |
| if ("dimenSize".equals(mResourceType)) return resources + ".getDimensionPixelSize(" + resourceName + ")"; |
| if ("drawable".equals(mResourceType)) return "android.databinding.DynamicUtil.getDrawableFromResource(" + viewName + ", " + resourceName + ")"; |
| if ("fraction".equals(mResourceType)) { |
| String base = getChildCode(0, "1"); |
| String pbase = getChildCode(1, "1"); |
| return resources + ".getFraction(" + resourceName + ", " + base + ", " + pbase + |
| ")"; |
| } |
| if ("id".equals(mResourceType)) return resourceName; |
| if ("intArray".equals(mResourceType)) return resources + ".getIntArray(" + resourceName + ")"; |
| if ("integer".equals(mResourceType)) return resources + ".getInteger(" + resourceName + ")"; |
| if ("interpolator".equals(mResourceType)) return "android.view.animation.AnimationUtils.loadInterpolator(" + context + ", " + resourceName + ")"; |
| if ("layout".equals(mResourceType)) return resourceName; |
| if ("plurals".equals(mResourceType)) { |
| if (getChildren().isEmpty()) { |
| return resourceName; |
| } else { |
| return makeParameterCall(resources, resourceName, "getQuantityString"); |
| } |
| } |
| if ("stateListAnimator".equals(mResourceType)) return "android.animation.AnimatorInflater.loadStateListAnimator(" + context + ", " + resourceName + ")"; |
| if ("string".equals(mResourceType)) return makeParameterCall(resources, resourceName, "getString"); |
| if ("stringArray".equals(mResourceType)) return resources + ".getStringArray(" + resourceName + ")"; |
| if ("transition".equals(mResourceType)) return "android.transition.TransitionInflater.from(" + context + ").inflateTransition(" + resourceName + ")"; |
| if ("typedArray".equals(mResourceType)) return resources + ".obtainTypedArray(" + resourceName + ")"; |
| final String property = Character.toUpperCase(mResourceType.charAt(0)) + |
| mResourceType.substring(1); |
| return resources + ".get" + property + "(" + resourceName + ")"; |
| |
| } |
| |
| private String getChildCode(int childIndex, String defaultValue) { |
| if (getChildren().size() <= childIndex) { |
| return defaultValue; |
| } else { |
| return getChildren().get(childIndex).toCode().generate(); |
| } |
| } |
| |
| private String makeParameterCall(String resources, String resourceName, String methodCall) { |
| StringBuilder sb = new StringBuilder(resources); |
| sb.append('.').append(methodCall).append("(").append(resourceName); |
| for (Expr expr : getChildren()) { |
| sb.append(", ").append(expr.toCode().generate()); |
| } |
| sb.append(")"); |
| return sb.toString(); |
| } |
| |
| private String getResourceObject() { |
| String rFileObject = RESOURCE_TYPE_TO_R_OBJECT.get(mResourceType); |
| if (rFileObject == null) { |
| rFileObject = mResourceType; |
| } |
| return rFileObject; |
| } |
| |
| @Override |
| public String toString() { |
| if (mPackage == null) { |
| return "@" + mResourceType + "/" + mResourceId; |
| } else { |
| return "@" + "android:" + mResourceType + "/" + mResourceId; |
| } |
| } |
| } |
