Setting tab bar widths automatically

- will make launcher adapt better to different screen sizes
- also, moved customization tray tab setup code from Launcher to CustomizeTrayTabHost

Change-Id: I27a1acdacd231150bf191548d155c0e94d855796

1 files changed, 108 insertions, 4 deletions

diff --git a/src/com/android/launcher2/CustomizeTrayTabHost.java b/src/com/android/launcher2/CustomizeTrayTabHost.java
index 76cfc84e8..3e0402509 100644
--- a/src/com/android/launcher2/CustomizeTrayTabHost.java
+++ b/src/com/android/launcher2/CustomizeTrayTabHost.java
@@ -16,20 +16,111 @@
 
 package com.android.launcher2;
 
+import com.android.launcher.R;
+import com.android.launcher2.CustomizePagedView.CustomizationType;
+
 import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
 import android.content.Context;
+import android.content.res.Resources;
 import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
 import android.widget.TabHost;
+import android.widget.TabWidget;
+import android.widget.TextView;
+
+public class CustomizeTrayTabHost extends TabHost implements LauncherTransitionable  {
+    // tags for the customization tabs
+    private static final String WIDGETS_TAG = "widgets";
+    private static final String APPLICATIONS_TAG = "applications";
+    private static final String SHORTCUTS_TAG = "shortcuts";
+    private static final String WALLPAPERS_TAG = "wallpapers";
 
-public class CustomizeTrayTabHost extends TabHost implements LauncherTransitionable {
     private boolean mFirstLayout = true;
 
-    public CustomizeTrayTabHost(Context context) {
-        super(context);
-    }
+    private final LayoutInflater mInflater;
+    private Context mContext;
 
     public CustomizeTrayTabHost(Context context, AttributeSet attrs) {
         super(context, attrs);
+        mContext = context;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        setup();
+
+        final CustomizePagedView customizePagedView =
+            (CustomizePagedView) findViewById(R.id.customization_drawer_tab_contents);
+
+        // Configure tabs
+        TabContentFactory contentFactory = new TabContentFactory() {
+            public View createTabContent(String tag) {
+                return customizePagedView;
+            }
+        };
+
+        TextView tabView;
+        TabWidget tabWidget = (TabWidget) findViewById(com.android.internal.R.id.tabs);
+
+        tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
+        tabView.setText(mContext.getString(R.string.widgets_tab_label));
+        addTab(newTabSpec(WIDGETS_TAG).setIndicator(tabView).setContent(contentFactory));
+        tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
+        tabView.setText(mContext.getString(R.string.applications_tab_label));
+        addTab(newTabSpec(APPLICATIONS_TAG)
+                .setIndicator(tabView).setContent(contentFactory));
+        tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
+        tabView.setText(mContext.getString(R.string.wallpapers_tab_label));
+        addTab(newTabSpec(WALLPAPERS_TAG)
+                .setIndicator(tabView).setContent(contentFactory));
+        tabView = (TextView) mInflater.inflate(R.layout.tab_widget_indicator, tabWidget, false);
+        tabView.setText(mContext.getString(R.string.shortcuts_tab_label));
+        addTab(newTabSpec(SHORTCUTS_TAG)
+                .setIndicator(tabView).setContent(contentFactory));
+        setOnTabChangedListener(new OnTabChangeListener() {
+            public void onTabChanged(String tabId) {
+                final CustomizePagedView.CustomizationType newType =
+                    getCustomizeFilterForTabTag(tabId);
+                if (newType != customizePagedView.getCustomizationFilter()) {
+                    // animate the changing of the tab content by fading pages in and out
+                    final Resources res = getResources();
+                    final int duration = res.getInteger(R.integer.config_tabTransitionTime);
+                    final float alpha = customizePagedView.getAlpha();
+                    ValueAnimator alphaAnim = ObjectAnimator.ofFloat(customizePagedView,
+                            "alpha", alpha, 0.0f);
+                    alphaAnim.setDuration(duration);
+                    alphaAnim.addListener(new AnimatorListenerAdapter() {
+                        @Override
+                        public void onAnimationEnd(Animator animation) {
+                            customizePagedView.setCustomizationFilter(newType);
+
+                            final float alpha = customizePagedView.getAlpha();
+                            ValueAnimator alphaAnim = ObjectAnimator.ofFloat(
+                                    customizePagedView, "alpha", alpha, 1.0f);
+                            alphaAnim.setDuration(duration);
+                            alphaAnim.start();
+                        }
+                    });
+                    alphaAnim.start();
+                }
+            }
+        });
+
+        // Set the width of the tab bar properly
+        int pageWidth = customizePagedView.getPageContentWidth();
+        TabWidget customizeTabBar = (TabWidget) findViewById(com.android.internal.R.id.tabs);
+        if (customizeTabBar == null) throw new Resources.NotFoundException();
+        int tabWidgetPadding = 0;
+        final int childCount = tabWidget.getChildCount();
+        if (childCount > 0) {
+            tabWidgetPadding += tabWidget.getChildAt(0).getPaddingLeft() * 2;
+        }
+        customizeTabBar.getLayoutParams().width = pageWidth + tabWidgetPadding;
     }
 
     @Override
@@ -57,4 +148,17 @@ public class CustomizeTrayTabHost extends TabHost implements LauncherTransitiona
         mFirstLayout = false;
         super.onLayout(changed, l, t, r, b);
     }
+
+    CustomizationType getCustomizeFilterForTabTag(String tag) {
+        if (tag.equals(WIDGETS_TAG)) {
+            return CustomizationType.WidgetCustomization;
+        } else if (tag.equals(APPLICATIONS_TAG)) {
+            return CustomizationType.ApplicationCustomization;
+        } else if (tag.equals(WALLPAPERS_TAG)) {
+            return CustomizePagedView.CustomizationType.WallpaperCustomization;
+        } else if (tag.equals(SHORTCUTS_TAG)) {
+            return CustomizePagedView.CustomizationType.ShortcutCustomization;
+        }
+        return CustomizationType.WidgetCustomization;
+    }
 }