diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java | 254 |
1 files changed, 180 insertions, 74 deletions
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java index 47a7ec0..d0a1c46 100644 --- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java +++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/Bridge.java @@ -55,6 +55,8 @@ import android.view.View.AttachInfo; import android.view.View.MeasureSpec; import android.view.WindowManager.LayoutParams; import android.widget.FrameLayout; +import android.widget.TabHost; +import android.widget.TabWidget; import java.lang.ref.SoftReference; import java.lang.reflect.Field; @@ -69,10 +71,10 @@ import java.util.Map; * {@link #computeLayout(IXmlPullParser, Object, int, int, String, boolean, Map, Map, IProjectCallback, ILayoutLog)}. */ public final class Bridge implements ILayoutBridge { - + private static final int DEFAULT_TITLE_BAR_HEIGHT = 25; private static final int DEFAULT_STATUS_BAR_HEIGHT = 25; - + public static class StaticMethodNotImplementedException extends RuntimeException { private static final long serialVersionUID = 1L; @@ -82,19 +84,20 @@ public final class Bridge implements ILayoutBridge { } /** - * Maps from id to resource name/type. + * Maps from id to resource name/type. This is for android.R only. */ private final static Map<Integer, String[]> sRMap = new HashMap<Integer, String[]>(); /** - * Same as sRMap except for int[] instead of int resources. + * Same as sRMap except for int[] instead of int resources. This is for android.R only. */ private final static Map<int[], String> sRArrayMap = new HashMap<int[], String>(); /** - * Reverse map compared to sRMap, resource type -> (resource name -> id) + * Reverse map compared to sRMap, resource type -> (resource name -> id). + * This is for android.R only. */ private final static Map<String, Map<String, Integer>> sRFullMap = new HashMap<String, Map<String,Integer>>(); - + private final static Map<Object, Map<String, SoftReference<Bitmap>>> sProjectBitmapCache = new HashMap<Object, Map<String, SoftReference<Bitmap>>>(); private final static Map<Object, Map<String, SoftReference<NinePatch>>> sProject9PatchCache = @@ -104,7 +107,7 @@ public final class Bridge implements ILayoutBridge { new HashMap<String, SoftReference<Bitmap>>(); private final static Map<String, SoftReference<NinePatch>> sFramework9PatchCache = new HashMap<String, SoftReference<NinePatch>>(); - + private static Map<String, Map<String, Integer>> sEnumValueMap; /** @@ -156,14 +159,14 @@ public final class Bridge implements ILayoutBridge { return sinit(fontOsLocation, enumValueMap); } - + private static synchronized boolean sinit(String fontOsLocation, Map<String, Map<String, Integer>> enumValueMap) { // When DEBUG_LAYOUT is set and is not 0 or false, setup a default listener // on static (native) methods which prints the signature on the console and // throws an exception. - // This is useful when testing the rendering in ADT to identify static native + // This is useful when testing the rendering in ADT to identify static native // methods that are ignored -- layoutlib_create makes them returns 0/false/null // which is generally OK yet might be a problem, so this is how you'd find out. // @@ -214,7 +217,7 @@ public final class Bridge implements ILayoutBridge { } else { return false; } - + sEnumValueMap = enumValueMap; // now parse com.android.internal.R (and only this one as android.R is a subset of @@ -226,13 +229,13 @@ public final class Bridge implements ILayoutBridge { // int[] does not implement equals/hashCode, and if the parsing used a different class // loader for the R class, this would NOT work. Class<?> r = com.android.internal.R.class; - + for (Class<?> inner : r.getDeclaredClasses()) { String resType = inner.getSimpleName(); Map<String, Integer> fullMap = new HashMap<String, Integer>(); sRFullMap.put(resType, fullMap); - + for (Field f : inner.getDeclaredFields()) { // only process static final fields. Since the final attribute may have // been altered by layoutlib_create, we only check static @@ -243,7 +246,7 @@ public final class Bridge implements ILayoutBridge { // if the object is an int[] we put it in sRArrayMap sRArrayMap.put((int[]) f.get(null), f.getName()); } else if (type == int.class) { - Integer value = (Integer) f.get(null); + Integer value = (Integer) f.get(null); sRMap.put(value, new String[] { f.getName(), resType }); fullMap.put(f.getName(), value); } else { @@ -281,7 +284,7 @@ public final class Bridge implements ILayoutBridge { themeName = themeName.substring(1); isProjectTheme = true; } - + return computeLayout(layoutDescription, projectKey, screenWidth, screenHeight, DisplayMetrics.DEFAULT_DENSITY, DisplayMetrics.DEFAULT_DENSITY, DisplayMetrics.DEFAULT_DENSITY, @@ -294,6 +297,7 @@ public final class Bridge implements ILayoutBridge { * (non-Javadoc) * @see com.android.layoutlib.api.ILayoutBridge#computeLayout(com.android.layoutlib.api.IXmlPullParser, java.lang.Object, int, int, java.lang.String, boolean, java.util.Map, java.util.Map, com.android.layoutlib.api.IProjectCallback, com.android.layoutlib.api.ILayoutLog) */ + @Deprecated public ILayoutResult computeLayout(IXmlPullParser layoutDescription, Object projectKey, int screenWidth, int screenHeight, String themeName, boolean isProjectTheme, Map<String, Map<String, IResourceValue>> projectResources, @@ -319,7 +323,7 @@ public final class Bridge implements ILayoutBridge { if (logger == null) { logger = sDefaultLogger; } - + synchronized (sDefaultLogger) { sLogger = logger; } @@ -327,12 +331,12 @@ public final class Bridge implements ILayoutBridge { // find the current theme and compute the style inheritance map Map<IStyleResourceValue, IStyleResourceValue> styleParentMap = new HashMap<IStyleResourceValue, IStyleResourceValue>(); - + IStyleResourceValue currentTheme = computeStyleMaps(themeName, isProjectTheme, projectResources.get(BridgeConstants.RES_STYLE), frameworkResources.get(BridgeConstants.RES_STYLE), styleParentMap); - - BridgeContext context = null; + + BridgeContext context = null; try { // setup the display Metrics. DisplayMetrics metrics = new DisplayMetrics(); @@ -347,29 +351,32 @@ public final class Bridge implements ILayoutBridge { frameworkResources, styleParentMap, customViewLoader, logger); BridgeInflater inflater = new BridgeInflater(context, customViewLoader); context.setBridgeInflater(inflater); - + IResourceValue windowBackground = null; int screenOffset = 0; if (currentTheme != null) { windowBackground = context.findItemInStyle(currentTheme, "windowBackground"); windowBackground = context.resolveResValue(windowBackground); - + screenOffset = getScreenOffset(currentTheme, context); } - + // we need to make sure the Looper has been initialized for this thread. // this is required for View that creates Handler objects. if (Looper.myLooper() == null) { Looper.prepare(); } - + BridgeXmlBlockParser parser = new BridgeXmlBlockParser(layoutDescription, context, false /* platformResourceFlag */); - + ViewGroup root = new FrameLayout(context); - + View view = inflater.inflate(parser, root); - + + // post-inflate process. For now this supports TabHost/TabWidget + postInflateProcess(view, customViewLoader); + // set the AttachInfo on the root view. AttachInfo info = new AttachInfo(new WindowSession(), new Window(), new Handler(), null); @@ -392,16 +399,19 @@ public final class Bridge implements ILayoutBridge { // measure the views view.measure(w_spec, h_spec); view.layout(0, screenOffset, screenWidth, screenHeight); - + // draw them BridgeCanvas canvas = new BridgeCanvas(screenWidth, screenHeight - screenOffset, logger); - + root.draw(canvas); canvas.dispose(); - + return new LayoutResult(visit(((ViewGroup)view).getChildAt(0), context), canvas.getImage()); + } catch (PostInflateException e) { + return new LayoutResult(ILayoutResult.ERROR, "Error during post inflation process:\n" + + e.getMessage()); } catch (Throwable e) { // get the real cause of the exception. Throwable t = e; @@ -419,7 +429,7 @@ public final class Bridge implements ILayoutBridge { // Make sure to remove static references, otherwise we could not unload the lib BridgeResources.clearSystem(); BridgeAssetManager.clearSystem(); - + // Remove the global logger synchronized (sDefaultLogger) { sLogger = sDefaultLogger; @@ -437,18 +447,18 @@ public final class Bridge implements ILayoutBridge { sProject9PatchCache.remove(projectKey); } } - + /** * Returns details of a framework resource from its integer value. * @param value the integer value * @return an array of 2 strings containing the resource name and type, or null if the id - * does not match any resource. + * does not match any resource. */ public static String[] resolveResourceValue(int value) { return sRMap.get(value); - + } - + /** * Returns the name of a framework resource whose value is an int array. * @param array @@ -456,7 +466,7 @@ public final class Bridge implements ILayoutBridge { public static String resolveResourceValue(int[] array) { return sRArrayMap.get(array); } - + /** * Returns the integer id of a framework resource, from a given resource type and resource name. * @param type the type of the resource @@ -468,15 +478,15 @@ public final class Bridge implements ILayoutBridge { if (map != null) { return map.get(name); } - + return null; } - + static Map<String, Integer> getEnumValues(String attributeName) { if (sEnumValueMap != null) { return sEnumValueMap.get(attributeName); } - + return null; } @@ -507,13 +517,13 @@ public final class Bridge implements ILayoutBridge { return result; } - + /** * Compute style information from the given list of style for the project and framework. * @param themeName the name of the current theme. In order to differentiate project and * platform themes sharing the same name, all project themes must be prepended with * a '*' character. - * @param isProjectTheme Is this a project theme + * @param isProjectTheme Is this a project theme * @param inProjectStyleMap the project style map * @param inFrameworkStyleMap the framework style map * @param outInheritanceMap the map of style inheritance. This is filled by the method @@ -523,23 +533,23 @@ public final class Bridge implements ILayoutBridge { String themeName, boolean isProjectTheme, Map<String, IResourceValue> inProjectStyleMap, Map<String, IResourceValue> inFrameworkStyleMap, Map<IStyleResourceValue, IStyleResourceValue> outInheritanceMap) { - + if (inProjectStyleMap != null && inFrameworkStyleMap != null) { // first, get the theme IResourceValue theme = null; - + // project theme names have been prepended with a * if (isProjectTheme) { theme = inProjectStyleMap.get(themeName); } else { theme = inFrameworkStyleMap.get(themeName); } - + if (theme instanceof IStyleResourceValue) { // compute the inheritance map for both the project and framework styles computeStyleInheritance(inProjectStyleMap.values(), inProjectStyleMap, inFrameworkStyleMap, outInheritanceMap); - + // Compute the style inheritance for the framework styles/themes. // Since, for those, the style parent values do not contain 'android:' // we want to force looking in the framework style only to avoid using @@ -547,11 +557,11 @@ public final class Bridge implements ILayoutBridge { // To do this, we pass null in lieu of the project style map. computeStyleInheritance(inFrameworkStyleMap.values(), null /*inProjectStyleMap */, inFrameworkStyleMap, outInheritanceMap); - + return (IStyleResourceValue)theme; } } - + return null; } @@ -573,7 +583,7 @@ public final class Bridge implements ILayoutBridge { // first look for a specified parent. String parentName = style.getParentStyle(); - + // no specified parent? try to infer it from the name of the style. if (parentName == null) { parentName = getParentName(value.getName()); @@ -581,7 +591,7 @@ public final class Bridge implements ILayoutBridge { if (parentName != null) { parentStyle = getStyle(parentName, inProjectStyleMap, inFrameworkStyleMap); - + if (parentStyle != null) { outInheritanceMap.put(style, parentStyle); } @@ -589,7 +599,7 @@ public final class Bridge implements ILayoutBridge { } } } - + /** * Searches for and returns the {@link IStyleResourceValue} from a given name. * <p/>The format of the name can be: @@ -607,27 +617,27 @@ public final class Bridge implements ILayoutBridge { Map<String, IResourceValue> inProjectStyleMap, Map<String, IResourceValue> inFrameworkStyleMap) { boolean frameworkOnly = false; - + String name = parentName; - + // remove the useless @ if it's there if (name.startsWith(BridgeConstants.PREFIX_RESOURCE_REF)) { name = name.substring(BridgeConstants.PREFIX_RESOURCE_REF.length()); } - + // check for framework identifier. if (name.startsWith(BridgeConstants.PREFIX_ANDROID)) { frameworkOnly = true; name = name.substring(BridgeConstants.PREFIX_ANDROID.length()); } - + // at this point we could have the format style/<name>. we want only the name if (name.startsWith(BridgeConstants.REFERENCE_STYLE)) { name = name.substring(BridgeConstants.REFERENCE_STYLE.length()); } IResourceValue parent = null; - + // if allowed, search in the project resources. if (frameworkOnly == false && inProjectStyleMap != null) { parent = inProjectStyleMap.get(name); @@ -637,17 +647,17 @@ public final class Bridge implements ILayoutBridge { if (parent == null) { parent = inFrameworkStyleMap.get(name); } - + // make sure the result is the proper class type and return it. if (parent instanceof IStyleResourceValue) { return (IStyleResourceValue)parent; } - + sLogger.error(String.format("Unable to resolve parent style name: ", parentName)); - + return null; } - + /** * Computes the name of the parent style, or <code>null</code> if the style is a root style. */ @@ -656,10 +666,10 @@ public final class Bridge implements ILayoutBridge { if (index != -1) { return styleName.substring(0, index); } - + return null; } - + /** * Returns the top screen offset. This depends on whether the current theme defines the user * of the title and status bars. @@ -670,7 +680,7 @@ public final class Bridge implements ILayoutBridge { // get the title bar flag from the current theme. IResourceValue value = context.findItemInStyle(currentTheme, "windowNoTitle"); - + // because it may reference something else, we resolve it. value = context.resolveResValue(value); @@ -679,10 +689,10 @@ public final class Bridge implements ILayoutBridge { XmlUtils.convertValueToBoolean(value.getValue(), false /* defValue */) == false) { // get value from the theme. value = context.findItemInStyle(currentTheme, "windowTitleSize"); - + // resolve it value = context.resolveResValue(value); - + // default value offset = DEFAULT_TITLE_BAR_HEIGHT; @@ -690,17 +700,17 @@ public final class Bridge implements ILayoutBridge { if (value != null) { TypedValue typedValue = ResourceHelper.getValue(value.getValue()); if (typedValue != null) { - offset = (int)typedValue.getDimension(context.getResources().mMetrics); + offset = (int)typedValue.getDimension(context.getResources().mMetrics); } } } - + // get the fullscreen flag from the current theme. value = context.findItemInStyle(currentTheme, "windowFullscreen"); - + // because it may reference something else, we resolve it. value = context.resolveResValue(value); - + if (value == null || value.getValue() == null || XmlUtils.convertValueToBoolean(value.getValue(), false /* defValue */) == false) { // FIXME: Right now this is hard-coded in the platform, but once there's a constant, we'll need to use it. @@ -711,6 +721,94 @@ public final class Bridge implements ILayoutBridge { } /** + * Post process on a view hierachy that was just inflated. + * <p/>At the moment this only support TabHost: If {@link TabHost} is detected, look for the + * {@link TabWidget}, and the corresponding {@link FrameLayout} and make new tabs automatically + * based on the content of the {@link FrameLayout}. + * @param view the root view to process. + * @param projectCallback callback to the project. + */ + private void postInflateProcess(View view, IProjectCallback projectCallback) + throws PostInflateException { + if (view instanceof TabHost) { + setupTabHost((TabHost)view, projectCallback); + } else if (view instanceof ViewGroup) { + ViewGroup group = (ViewGroup)view; + final int count = group.getChildCount(); + for (int c = 0 ; c < count ; c++) { + View child = group.getChildAt(c); + postInflateProcess(child, projectCallback); + } + } + } + + /** + * Sets up a {@link TabHost} object. + * @param tabHost the TabHost to setup. + * @param projectCallback The project callback object to access the project R class. + * @throws PostInflateException + */ + private void setupTabHost(TabHost tabHost, IProjectCallback projectCallback) + throws PostInflateException { + // look for the TabWidget, and the FrameLayout. They have their own specific names + View v = tabHost.findViewById(android.R.id.tabs); + + if (v == null) { + throw new PostInflateException( + "TabHost requires a TabWidget with id \"android:id/tabs\".\n"); + } + + if ((v instanceof TabWidget) == false) { + throw new PostInflateException(String.format( + "TabHost requires a TabWidget with id \"android:id/tabs\".\n" + + "View found with id 'tabs' is '%s'", v.getClass().getCanonicalName())); + } + + v = tabHost.findViewById(android.R.id.tabcontent); + + if (v == null) { + // TODO: see if we can fake tabs even without the FrameLayout (same below when the framelayout is empty) + throw new PostInflateException( + "TabHost requires a FrameLayout with id \"android:id/tabcontent\"."); + } + + if ((v instanceof FrameLayout) == false) { + throw new PostInflateException(String.format( + "TabHost requires a FrameLayout with id \"android:id/tabcontent\".\n" + + "View found with id 'tabcontent' is '%s'", v.getClass().getCanonicalName())); + } + + FrameLayout content = (FrameLayout)v; + + // now process the content of the framelayout and dynamically create tabs for it. + final int count = content.getChildCount(); + + if (count == 0) { + throw new PostInflateException( + "The FrameLayout for the TabHost has no content. Rendering failed.\n"); + } + + // this must be called before addTab() so that the TabHost searches its TabWidget + // and FrameLayout. + tabHost.setup(); + + // for each child of the framelayout, add a new TabSpec + for (int i = 0 ; i < count ; i++) { + View child = content.getChildAt(i); + String tabSpec = String.format("tab_spec%d", i+1); + int id = child.getId(); + String[] resource = projectCallback.resolveResourceValue(id); + String name; + if (resource != null) { + name = resource[0]; // 0 is resource name, 1 is resource type. + } else { + name = String.format("Tab %d", i+1); // default name if id is unresolved. + } + tabHost.addTab(tabHost.newTabSpec(tabSpec).setIndicator(name).setContent(id)); + } + } + + /** * Returns the bitmap for a specific path, from a specific project cache, or from the * framework cache. * @param value the path of the bitmap @@ -750,7 +848,7 @@ public final class Bridge implements ILayoutBridge { map = new HashMap<String, SoftReference<Bitmap>>(); sProjectBitmapCache.put(projectKey, map); } - + map.put(value, new SoftReference<Bitmap>(bmp)); } else { sFrameworkBitmapCache.put(value, new SoftReference<Bitmap>(bmp)); @@ -767,7 +865,7 @@ public final class Bridge implements ILayoutBridge { static NinePatch getCached9Patch(String value, Object projectKey) { if (projectKey != null) { Map<String, SoftReference<NinePatch>> map = sProject9PatchCache.get(projectKey); - + if (map != null) { SoftReference<NinePatch> ref = map.get(value); if (ref != null) { @@ -780,7 +878,7 @@ public final class Bridge implements ILayoutBridge { return ref.get(); } } - + return null; } @@ -798,13 +896,21 @@ public final class Bridge implements ILayoutBridge { map = new HashMap<String, SoftReference<NinePatch>>(); sProject9PatchCache.put(projectKey, map); } - + map.put(value, new SoftReference<NinePatch>(ninePatch)); } else { sFramework9PatchCache.put(value, new SoftReference<NinePatch>(ninePatch)); } } + private static final class PostInflateException extends Exception { + private static final long serialVersionUID = 1L; + + public PostInflateException(String message) { + super(message); + } + } + /** * Implementation of {@link IWindowSession} so that mSession is not null in * the {@link SurfaceView}. @@ -839,7 +945,7 @@ public final class Bridge implements ILayoutBridge { // pass for now. return false; } - + @SuppressWarnings("unused") public MotionEvent getPendingPointerMove(IWindow arg0) throws RemoteException { // pass for now. @@ -863,7 +969,7 @@ public final class Bridge implements ILayoutBridge { public void getDisplayFrame(IWindow window, Rect outDisplayFrame) { // pass for now. } - + @SuppressWarnings("unused") public void remove(IWindow arg0) throws RemoteException { // pass for now. @@ -883,13 +989,13 @@ public final class Bridge implements ILayoutBridge { Rect visibleInsets) { // pass for now. } - + public IBinder asBinder() { // pass for now. return null; } } - + /** * Implementation of {@link IWindow} to pass to the {@link AttachInfo}. */ |