New Launcher feature: "hotseat" icons.

The hotseats are permanent slots on either side of the
AllApps button. Their functions are:

  LEFT/BOTTOM: Phone
    Launched via the hardcoded class name
    com.android.contacts/.ContactsLaunchActivity.

  RIGHT/TOP: Browser
    Launched by querying to see which application is the
    default for URLs, then starting that activity directly.

In the future, it would be ideal to allow an application
with permission to access LauncherProvider to customize
these (icons, contentDescriptions, and Intents).

Bug: 2559083
Change-Id: I56f6e745f8574aa17e28feaa9d2118fb4a715cd4

2 files changed, 79 insertions, 20 deletions

diff --git a/src/com/android/launcher2/DeleteZone.java b/src/com/android/launcher2/DeleteZone.java
index 9065de494..3a6c63d8b 100644
--- a/src/com/android/launcher2/DeleteZone.java
+++ b/src/com/android/launcher2/DeleteZone.java
@@ -183,15 +183,7 @@ public class DeleteZone extends ImageView implements DropTarget, DragController.
             animationSet.setDuration(ANIMATION_DURATION);
         }
         if (mHandleInAnimation == null) {
-            if (mOrientation == ORIENTATION_HORIZONTAL) {
-                mHandleInAnimation = new TranslateAnimation(Animation.ABSOLUTE, 0.0f,
-                        Animation.ABSOLUTE, 0.0f, Animation.RELATIVE_TO_SELF, 1.0f,
-                        Animation.RELATIVE_TO_SELF, 0.0f);
-            } else {
-                mHandleInAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF,
-                        1.0f, Animation.RELATIVE_TO_SELF, 0.0f, Animation.ABSOLUTE, 0.0f,
-                        Animation.ABSOLUTE, 0.0f);
-            }
+            mHandleInAnimation = new AlphaAnimation(0.0f, 1.0f);
             mHandleInAnimation.setDuration(ANIMATION_DURATION);
         }
         if (mOutAnimation == null) {
@@ -211,15 +203,7 @@ public class DeleteZone extends ImageView implements DropTarget, DragController.
             animationSet.setDuration(ANIMATION_DURATION);
         }
         if (mHandleOutAnimation == null) {
-            if (mOrientation == ORIENTATION_HORIZONTAL) {
-                mHandleOutAnimation = new FastTranslateAnimation(Animation.ABSOLUTE, 0.0f,
-                        Animation.ABSOLUTE, 0.0f, Animation.RELATIVE_TO_SELF, 0.0f,
-                        Animation.RELATIVE_TO_SELF, 1.0f);
-            } else {
-                mHandleOutAnimation = new FastTranslateAnimation(Animation.RELATIVE_TO_SELF,
-                        0.0f, Animation.RELATIVE_TO_SELF, 1.0f, Animation.ABSOLUTE, 0.0f,
-                        Animation.ABSOLUTE, 0.0f);
-            }
+            mHandleOutAnimation = new AlphaAnimation(1.0f, 0.0f);
             mHandleOutAnimation.setFillAfter(true);
             mHandleOutAnimation.setDuration(ANIMATION_DURATION);
         }
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 868a9d17f..5a2a7d37e 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -26,12 +26,14 @@ import android.app.StatusBarManager;
 import android.app.WallpaperManager;
 import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
+import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.Intent.ShortcutIconResource;
 import android.content.IntentFilter;
+import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -41,6 +43,7 @@ import android.graphics.Rect;
 import android.graphics.Canvas;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.ColorDrawable;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Parcelable;
@@ -197,6 +200,17 @@ public final class Launcher extends Activity
     private ImageView mPreviousView;
     private ImageView mNextView;
 
+    // Hotseats (quick-launch icons next to AllApps)
+    // TODO: move these intial intents out to Uris in an XML resource
+    private static final int NUM_HOTSEATS = 2;
+    private Intent[] mHotseats = new Intent[] {
+        new Intent(Intent.ACTION_MAIN)
+            .setComponent(ComponentName.unflattenFromString(
+                "com.android.contacts/.ContactsLaunchActivity")),
+        new Intent(Intent.ACTION_WEB_SEARCH, Uri.EMPTY),
+    };
+    private CharSequence[] mHotseatLabels = new CharSequence[2];
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -215,6 +229,7 @@ public final class Launcher extends Activity
             android.os.Debug.startMethodTracing("/sdcard/launcher");
         }
 
+        loadHotseats();
         checkForLocaleChange();
         setWallpaperDimension();
 
@@ -273,6 +288,8 @@ public final class Launcher extends Activity
 
             writeConfiguration(this, localeConfiguration);
             mIconCache.flush();
+
+            loadHotseats();
         }
     }
 
@@ -351,6 +368,44 @@ public final class Launcher extends Activity
         wpm.suggestDesiredDimensions(width * WALLPAPER_SCREENS_SPAN, height);
     }
 
+    private void loadHotseats() {
+        PackageManager pm = getPackageManager();
+        for (int i=0; i<mHotseats.length; i++) {
+            Intent intent = mHotseats[i];
+
+            if (LOGD) {
+                Log.d(TAG, "loadHotseats: hotseat " + i 
+                    + " initial intent=[" + intent.toUri(Intent.URI_INTENT_SCHEME)
+                    + "]");
+            }
+
+            // fix up the default intents
+            if (intent.getAction().equals(Intent.ACTION_WEB_SEARCH)
+                    && intent.getData().equals(Uri.EMPTY)) {
+                // use this to represent "default web browser"
+                intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com/"));
+            }
+            ComponentName com = intent.resolveActivity(pm);
+            mHotseats[i] = new Intent(Intent.ACTION_MAIN).setComponent(com);
+
+            // load the labels for accessibility
+            try {
+                ActivityInfo ai = pm.getActivityInfo(com, 0);
+                mHotseatLabels[i] = ai.loadLabel(pm);
+            } catch (PackageManager.NameNotFoundException ex) {
+                mHotseatLabels[i] = "";
+            }
+
+            if (LOGD) {
+                Log.d(TAG, "loadHotseats: hotseat " + i 
+                    + " intent=[" + mHotseats[i].toUri(Intent.URI_INTENT_SCHEME)
+                    + "] label=[" + mHotseatLabels[i]
+                    + "]"
+                    );
+            }
+        }
+    }
+
     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         mWaitingForResult = false;
@@ -567,6 +622,9 @@ public final class Launcher extends Activity
         mHandleView.setOnClickListener(this);
         mHandleView.setOnLongClickListener(this);
 
+        findViewById(R.id.hotseat_left).setContentDescription(mHotseatLabels[0]);
+        findViewById(R.id.hotseat_right).setContentDescription(mHotseatLabels[1]);
+
         mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
         mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
 
@@ -585,7 +643,7 @@ public final class Launcher extends Activity
 
         deleteZone.setLauncher(this);
         deleteZone.setDragController(dragController);
-        deleteZone.setHandle(mHandleView);
+        deleteZone.setHandle(findViewById(R.id.all_apps_button_cluster));
 
         dragController.setDragScoller(workspace);
         dragController.setDragListener(deleteZone);
@@ -610,6 +668,23 @@ public final class Launcher extends Activity
             mWorkspace.scrollRight();
         }
     }
+
+    @SuppressWarnings({"UnusedDeclaration"})
+    public void launchHotSeat(View v) {
+        int index = -1;
+        if (v.getId() == R.id.hotseat_left) {
+            index = 0;
+        } else if (v.getId() == R.id.hotseat_right) {
+            index = 1;
+        }
+
+        if (index >= 0 && mHotseats[index] != null) {
+            startActivitySafely(
+                mHotseats[index],
+                "hotseat"
+            );
+        }
+    }
     
     /**
      * Creates a view representing a shortcut.
@@ -1280,7 +1355,7 @@ public final class Launcher extends Activity
             startActivity(intent);
         } catch (ActivityNotFoundException e) {
             Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
-            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent);
+            Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
         } catch (SecurityException e) {
             Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
             Log.e(TAG, "Launcher does not have the permission to launch " + intent +