Binding AllApps synchronously. (Bug 6855061)

- Also ensuring that we restore to the settling page index if it is in motion

Change-Id: I9c6760383113f7614f6cb962ab6562b0e7eb7138
diff --git a/src/com/android/launcher2/AppsCustomizePagedView.java b/src/com/android/launcher2/AppsCustomizePagedView.java
index a508361..8cb169e 100644
--- a/src/com/android/launcher2/AppsCustomizePagedView.java
+++ b/src/com/android/launcher2/AppsCustomizePagedView.java
@@ -528,18 +528,22 @@
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     }
 
-    public void onPackagesUpdated() {
-        // TODO: this isn't ideal, but we actually need to delay here. This call is triggered
-        // by a broadcast receiver, and in order for it to work correctly, we need to know that
-        // the AppWidgetService has already received and processed the same broadcast. Since there
-        // is no guarantee about ordering of broadcast receipt, we just delay here. This is a
-        // workaround until we add a callback from AppWidgetService to AppWidgetHost when widget
-        // packages are added, updated or removed.
-        postDelayed(new Runnable() {
-           public void run() {
-               updatePackages();
-           }
-        }, 1500);
+    public void onPackagesUpdated(boolean immediate) {
+        if (immediate) {
+            updatePackages();
+        } else {
+            // TODO: this isn't ideal, but we actually need to delay here. This call is triggered
+            // by a broadcast receiver, and in order for it to work correctly, we need to know that
+            // the AppWidgetService has already received and processed the same broadcast. Since there
+            // is no guarantee about ordering of broadcast receipt, we just delay here. This is a
+            // workaround until we add a callback from AppWidgetService to AppWidgetHost when widget
+            // packages are added, updated or removed.
+            postDelayed(new Runnable() {
+               public void run() {
+                   updatePackages();
+               }
+            }, 1500);
+        }
     }
 
     public void updatePackages() {
@@ -578,7 +582,7 @@
     @Override
     public void onClick(View v) {
         // When we have exited all apps or are in transition, disregard clicks
-        if (!mLauncher.isAllAppsCustomizeOpen() ||
+        if (!mLauncher.isAllAppsVisible() ||
                 mLauncher.getWorkspace().isSwitchingState()) return;
 
         if (v instanceof PagedViewIcon) {
diff --git a/src/com/android/launcher2/AppsCustomizeTabHost.java b/src/com/android/launcher2/AppsCustomizeTabHost.java
index 9fa2f32..c88b5a2 100644
--- a/src/com/android/launcher2/AppsCustomizeTabHost.java
+++ b/src/com/android/launcher2/AppsCustomizeTabHost.java
@@ -81,7 +81,7 @@
      * reflects the new content (but doesn't do the animation and logic associated with changing
      * tabs manually).
      */
-    private void setContentTypeImmediate(AppsCustomizePagedView.ContentType type) {
+    void setContentTypeImmediate(AppsCustomizePagedView.ContentType type) {
         onTabChangedStart();
         onTabChangedEnd(type);
     }
@@ -158,10 +158,11 @@
             if (contentWidth > 0 && mTabs.getLayoutParams().width != contentWidth) {
                 // Set the width and show the tab bar
                 mTabs.getLayoutParams().width = contentWidth;
-                post(mRelayoutAndMakeVisible);
+                mRelayoutAndMakeVisible.run();
             }
+
+            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         }
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
     }
 
      public boolean onInterceptTouchEvent(MotionEvent ev) {
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index ae2ca3b..38085e0 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -371,7 +371,7 @@
 
         // Update customization drawer _after_ restoring the states
         if (mAppsCustomizeContent != null) {
-            mAppsCustomizeContent.onPackagesUpdated();
+            mAppsCustomizeContent.onPackagesUpdated(true);
         }
 
         if (PROFILE_STARTUP) {
@@ -890,10 +890,8 @@
         if (mAppsCustomizeTabHost != null) {
             String curTab = savedState.getString("apps_customize_currentTab");
             if (curTab != null) {
-                // We set this directly so that there is no delay before the tab is set
-                mAppsCustomizeContent.setContentType(
+                mAppsCustomizeTabHost.setContentTypeImmediate(
                         mAppsCustomizeTabHost.getContentTypeForTabTag(curTab));
-                mAppsCustomizeTabHost.setCurrentTabByTag(curTab);
                 mAppsCustomizeContent.loadAssociatedPages(
                         mAppsCustomizeContent.getCurrentPage());
             }
@@ -1424,7 +1422,7 @@
 
     @Override
     protected void onSaveInstanceState(Bundle outState) {
-        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentPage());
+        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getNextPage());
         super.onSaveInstanceState(outState);
 
         outState.putInt(RUNTIME_STATE, mState.ordinal());
@@ -1808,7 +1806,7 @@
 
     @Override
     public void onBackPressed() {
-        if (mState == State.APPS_CUSTOMIZE) {
+        if (isAllAppsVisible()) {
             showWorkspace(true);
         } else if (mWorkspace.getOpenFolder() != null) {
             Folder openFolder = mWorkspace.getOpenFolder();
@@ -1881,7 +1879,7 @@
                 handleFolderClick(fi);
             }
         } else if (v == mAllAppsButton) {
-            if (mState == State.APPS_CUSTOMIZE) {
+            if (isAllAppsVisible()) {
                 showWorkspace(true);
             } else {
                 onClickAllAppsButton(v);
@@ -2285,7 +2283,7 @@
 
     // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
     public boolean isAllAppsVisible() {
-        return (mState == State.APPS_CUSTOMIZE);
+        return (mState == State.APPS_CUSTOMIZE) || (mOnResumeState == State.APPS_CUSTOMIZE);
     }
 
     public boolean isAllAppsButtonRank(int rank) {
@@ -2312,7 +2310,7 @@
 
     void disableWallpaperIfInAllApps() {
         // Only disable it if we are in all apps
-        if (mState == State.APPS_CUSTOMIZE) {
+        if (isAllAppsVisible()) {
             if (mAppsCustomizeTabHost != null &&
                     !mAppsCustomizeTabHost.isTransitioning()) {
                 updateWallpaperVisibility(false);
@@ -2753,7 +2751,7 @@
     }
 
     void enterSpringLoadedDragMode() {
-        if (mState == State.APPS_CUSTOMIZE) {
+        if (isAllAppsVisible()) {
             hideAppsCustomizeHelper(State.APPS_CUSTOMIZE_SPRING_LOADED, true, true, null);
             hideDockDivider();
             mState = State.APPS_CUSTOMIZE_SPRING_LOADED;
@@ -2827,10 +2825,6 @@
         // TODO
     }
 
-    public boolean isAllAppsCustomizeOpen() {
-        return mState == State.APPS_CUSTOMIZE;
-    }
-
     /**
      * Shows the hotseat area.
      */
@@ -3460,23 +3454,30 @@
      * Implementation of the method from LauncherModel.Callbacks.
      */
     public void bindAllApplications(final ArrayList<ApplicationInfo> apps) {
+        Runnable setAllAppsRunnable = new Runnable() {
+            public void run() {
+                if (mAppsCustomizeContent != null) {
+                    mAppsCustomizeContent.setApps(apps);
+                }
+            }
+        };
+
         // Remove the progress bar entirely; we could also make it GONE
         // but better to remove it since we know it's not going to be used
         View progressBar = mAppsCustomizeTabHost.
             findViewById(R.id.apps_customize_progress_bar);
         if (progressBar != null) {
             ((ViewGroup)progressBar.getParent()).removeView(progressBar);
+
+            // We just post the call to setApps so the user sees the progress bar
+            // disappear-- otherwise, it just looks like the progress bar froze
+            // which doesn't look great
+            mAppsCustomizeTabHost.post(setAllAppsRunnable);
+        } else {
+            // If we did not initialize the spinner in onCreate, then we can directly set the
+            // list of applications without waiting for any progress bars views to be hidden.
+            setAllAppsRunnable.run();
         }
-        // We just post the call to setApps so the user sees the progress bar
-        // disappear-- otherwise, it just looks like the progress bar froze
-        // which doesn't look great
-        mAppsCustomizeTabHost.post(new Runnable() {
-            public void run() {
-                if (mAppsCustomizeContent != null) {
-                    mAppsCustomizeContent.setApps(apps);
-                }
-            }
-        });
     }
 
     /**
@@ -3531,7 +3532,7 @@
      */
     public void bindPackagesUpdated() {
         if (mAppsCustomizeContent != null) {
-            mAppsCustomizeContent.onPackagesUpdated();
+            mAppsCustomizeContent.onPackagesUpdated(false);
         }
     }
 
diff --git a/src/com/android/launcher2/LauncherModel.java b/src/com/android/launcher2/LauncherModel.java
index 40a9e21..92be7e4 100644
--- a/src/com/android/launcher2/LauncherModel.java
+++ b/src/com/android/launcher2/LauncherModel.java
@@ -1686,7 +1686,7 @@
             @SuppressWarnings("unchecked")
             final ArrayList<ApplicationInfo> list
                     = (ArrayList<ApplicationInfo>) mAllAppsList.data.clone();
-            mHandler.post(new Runnable() {
+            Runnable r = new Runnable() {
                 public void run() {
                     final long t = SystemClock.uptimeMillis();
                     final Callbacks callbacks = tryGetCallbacks(oldCallbacks);
@@ -1698,7 +1698,13 @@
                                 + (SystemClock.uptimeMillis()-t) + "ms");
                     }
                 }
-            });
+            };
+            boolean isRunningOnMainThread = !(sWorkerThread.getThreadId() == Process.myTid());
+            if (oldCallbacks.isAllAppsVisible() && isRunningOnMainThread) {
+                r.run();
+            } else {
+                mHandler.post(r);
+            }
         }
 
         private void loadAllAppsByBatch() {
diff --git a/src/com/android/launcher2/PagedViewWidget.java b/src/com/android/launcher2/PagedViewWidget.java
index 66b7080..b804ab0 100644
--- a/src/com/android/launcher2/PagedViewWidget.java
+++ b/src/com/android/launcher2/PagedViewWidget.java
@@ -21,6 +21,7 @@
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
+import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
@@ -44,6 +45,7 @@
     boolean mShortPressTriggered = false;
     static PagedViewWidget sShortpressTarget = null;
     boolean mIsAppWidget;
+    private final Rect mOriginalImagePadding = new Rect();
 
     public PagedViewWidget(Context context) {
         this(context, null);
@@ -63,6 +65,17 @@
         setClipToPadding(false);
     }
 
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        final ImageView image = (ImageView) findViewById(R.id.widget_preview);
+        mOriginalImagePadding.left = image.getPaddingLeft();
+        mOriginalImagePadding.top = image.getPaddingTop();
+        mOriginalImagePadding.right = image.getPaddingRight();
+        mOriginalImagePadding.bottom = image.getPaddingBottom();
+    }
+
     public static void setDeletePreviewsWhenDetachedFromWindow(boolean value) {
         sDeletePreviewsWhenDetachedFromWindow = value;
     }
@@ -79,7 +92,7 @@
                     preview.getBitmap().recycle();
                 }
                 image.setImageDrawable(null);
-                }
+            }
         }
     }
 
@@ -117,8 +130,8 @@
     public int[] getPreviewSize() {
         final ImageView i = (ImageView) findViewById(R.id.widget_preview);
         int[] maxSize = new int[2];
-        maxSize[0] = i.getWidth() - i.getPaddingLeft() - i.getPaddingRight();
-        maxSize[1] = i.getHeight() - i.getPaddingTop();
+        maxSize[0] = i.getWidth() - mOriginalImagePadding.left - mOriginalImagePadding.right;
+        maxSize[1] = i.getHeight() - mOriginalImagePadding.top;
         return maxSize;
     }
 
@@ -132,10 +145,10 @@
                 // center horizontally
                 int[] imageSize = getPreviewSize();
                 int centerAmount = (imageSize[0] - preview.getIntrinsicWidth()) / 2;
-                image.setPadding(image.getPaddingLeft() + centerAmount,
-                        image.getPaddingTop(),
-                        image.getPaddingRight(),
-                        image.getPaddingBottom());
+                image.setPadding(mOriginalImagePadding.left + centerAmount,
+                        mOriginalImagePadding.top,
+                        mOriginalImagePadding.right,
+                        mOriginalImagePadding.bottom);
             }
             image.setAlpha(1f);
             image.mAllowRequestLayout = true;
diff --git a/src/com/android/launcher2/PagedViewWithDraggableItems.java b/src/com/android/launcher2/PagedViewWithDraggableItems.java
index 22fd82b..9cdd74f 100644
--- a/src/com/android/launcher2/PagedViewWithDraggableItems.java
+++ b/src/com/android/launcher2/PagedViewWithDraggableItems.java
@@ -105,7 +105,7 @@
         // Return early if we are still animating the pages
         if (mNextPage != INVALID_PAGE) return false;
         // When we have exited all apps or are in transition, disregard long clicks
-        if (!mLauncher.isAllAppsCustomizeOpen() ||
+        if (!mLauncher.isAllAppsVisible() ||
                 mLauncher.getWorkspace().isSwitchingState()) return false;
         // Return if global dragging is not enabled
         if (!mLauncher.isDraggingEnabled()) return false;