Implement stack splitting and task movement.

Split stacks and move tasks between them. Layout the windows
according to the new stack split.

After layout content rectangles are known split the available area
between all stack boxes. Then use those values for future layout.

Provide stack contents to ActivityManager.

Change-Id: I9746e6185445633810d506be514d0b7b540a7f99

1 files changed, 86 insertions, 8 deletions

diff --git a/cmds/am/src/com/android/commands/am/Am.java b/cmds/am/src/com/android/commands/am/Am.java
index ccb9e1f..5f5c337 100644
--- a/cmds/am/src/com/android/commands/am/Am.java
+++ b/cmds/am/src/com/android/commands/am/Am.java
@@ -74,6 +74,7 @@ public class Am extends BaseCommand {
         (new Am()).run(args);
     }
 
+    @Override
     public void onShowUsage(PrintStream out) {
         out.println(
                 "usage: am [subcommand] [options]\n" +
@@ -99,6 +100,9 @@ public class Am extends BaseCommand {
                 "       am to-intent-uri [INTENT]\n" +
                 "       am switch-user <USER_ID>\n" +
                 "       am stop-user <USER_ID>\n" +
+                "       am stack create <RELATIVE_STACK_ID> <POSITION> <WEIGHT>\n" +
+                "       am stack movetask <STACK_ID> <TASK_ID> [true|false]\n" +
+                "       am stack dump\n" +
                 "\n" +
                 "am start: start an Activity.  Options are:\n" +
                 "    -D: enable debugging\n" +
@@ -181,6 +185,16 @@ public class Am extends BaseCommand {
                 "am stop-user: stop execution of USER_ID, not allowing it to run any\n" +
                 "  code until a later explicit switch to it.\n" +
                 "\n" +
+                "am stack create: create a new stack relative to an existing one.\n" +
+                "   <RELATIVE_STACK_ID>: existing stack's id.\n" +
+                "   <POSITION>: 0: to left of, 1: to right of, 2: above, 3: below\n" +
+                "   <WEIGHT>: float between 0.2 and 0.8 inclusive.\n" +
+                "\n" +
+                "am stack movetask: move <TASK_ID> from its current stack to the top (true) or" +
+                "   bottom (false) of <STACK_ID>.\n" +
+                "\n" +
+                "am stack dump: list the hierarchy of stacks.\n" +
+                "\n" +
                 "<INTENT> specifications include these flags and arguments:\n" +
                 "    [-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>]\n" +
                 "    [-c <CATEGORY> [-c <CATEGORY>] ...]\n" +
@@ -213,6 +227,7 @@ public class Am extends BaseCommand {
                 );
     }
 
+    @Override
     public void onRun() throws Exception {
 
         mAm = ActivityManagerNative.getDefault();
@@ -259,6 +274,8 @@ public class Am extends BaseCommand {
             runSwitchUser();
         } else if (op.equals("stop-user")) {
             runStopUser();
+        } else if (op.equals("stack")) {
+            runStack();
         } else {
             showError("Error: unknown command '" + op + "'");
         }
@@ -1029,7 +1046,7 @@ public class Am extends BaseCommand {
         }
 
         @Override
-        public boolean activityResuming(String pkg) throws RemoteException {
+        public boolean activityResuming(String pkg) {
             synchronized (this) {
                 System.out.println("** Activity resuming: " + pkg);
             }
@@ -1037,7 +1054,7 @@ public class Am extends BaseCommand {
         }
 
         @Override
-        public boolean activityStarting(Intent intent, String pkg) throws RemoteException {
+        public boolean activityStarting(Intent intent, String pkg) {
             synchronized (this) {
                 System.out.println("** Activity starting: " + pkg);
             }
@@ -1046,7 +1063,7 @@ public class Am extends BaseCommand {
 
         @Override
         public boolean appCrashed(String processName, int pid, String shortMsg, String longMsg,
-                long timeMillis, String stackTrace) throws RemoteException {
+                long timeMillis, String stackTrace) {
             synchronized (this) {
                 System.out.println("** ERROR: PROCESS CRASHED");
                 System.out.println("processName: " + processName);
@@ -1063,8 +1080,7 @@ public class Am extends BaseCommand {
         }
 
         @Override
-        public int appEarlyNotResponding(String processName, int pid, String annotation)
-                throws RemoteException {
+        public int appEarlyNotResponding(String processName, int pid, String annotation) {
             synchronized (this) {
                 System.out.println("** ERROR: EARLY PROCESS NOT RESPONDING");
                 System.out.println("processName: " + processName);
@@ -1077,8 +1093,7 @@ public class Am extends BaseCommand {
         }
 
         @Override
-        public int appNotResponding(String processName, int pid, String processStats)
-                throws RemoteException {
+        public int appNotResponding(String processName, int pid, String processStats) {
             synchronized (this) {
                 System.out.println("** ERROR: PROCESS NOT RESPONDING");
                 System.out.println("processName: " + processName);
@@ -1326,7 +1341,7 @@ public class Am extends BaseCommand {
 
         @Override
         public void performReceive(Intent intent, int resultCode, String data, Bundle extras,
-                boolean ordered, boolean sticky, int sendingUser) throws RemoteException {
+                boolean ordered, boolean sticky, int sendingUser) {
             String line = "Broadcast completed: result=" + resultCode;
             if (data != null) line = line + ", data=\"" + data + "\"";
             if (extras != null) line = line + ", extras: " + extras;
@@ -1359,6 +1374,7 @@ public class Am extends BaseCommand {
             mRawMode = rawMode;
         }
 
+        @Override
         public void instrumentationStatus(ComponentName name, int resultCode, Bundle results) {
             synchronized (this) {
                 // pretty printer mode?
@@ -1381,6 +1397,7 @@ public class Am extends BaseCommand {
             }
         }
 
+        @Override
         public void instrumentationFinished(ComponentName name, int resultCode,
                 Bundle results) {
             synchronized (this) {
@@ -1421,4 +1438,65 @@ public class Am extends BaseCommand {
             return true;
         }
     }
+
+    private void runStack() throws Exception {
+        String op = nextArgRequired();
+        if (op.equals("create")) {
+            runStackCreate();
+        } else if (op.equals("movetask")) {
+            runStackMoveTask();
+        } else if (op.equals("dump")) {
+            runStackDump();
+        } else {
+            showError("Error: unknown command '" + op + "'");
+            return;
+        }
+    }
+
+    private void runStackCreate() throws Exception {
+        String relativeToStr = nextArgRequired();
+        int relativeTo = Integer.valueOf(relativeToStr);
+        String positionStr = nextArgRequired();
+        int position = Integer.valueOf(positionStr);
+        String weightStr = nextArgRequired();
+        float weight = Float.valueOf(weightStr);
+
+        try {
+            int stackId = mAm.createStack(relativeTo, position, weight);
+            System.out.println("createStack returned " + stackId + "\n\n");
+        } catch (RemoteException e) {
+        }
+    }
+
+    private void runStackMoveTask() throws Exception {
+        String taskIdStr = nextArgRequired();
+        int taskId = Integer.valueOf(taskIdStr);
+        String stackIdStr = nextArgRequired();
+        int stackId = Integer.valueOf(stackIdStr);
+        String toTopStr = nextArgRequired();
+        final boolean toTop;
+        if ("true".equals(toTopStr)) {
+            toTop = true;
+        } else if ("false".equals(toTopStr)) {
+            toTop = false;
+        } else {
+            System.err.println("Error: bad toTop arg: " + toTopStr);
+            return;
+        }
+
+        try {
+            mAm.moveTaskToStack(taskId, stackId, toTop);
+        } catch (RemoteException e) {
+        }
+    }
+
+    private void runStackDump() throws Exception {
+        try {
+            List<ActivityManager.StackInfo> stacks = mAm.getStacks();
+            for (ActivityManager.StackInfo stack : stacks) {
+                System.out.println(stack);
+            }
+        } catch (RemoteException e) {
+        }
+    }
 }