| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher3; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Color; |
| import android.graphics.Rect; |
| import android.util.AttributeSet; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.accessibility.AccessibilityManager; |
| import android.widget.FrameLayout; |
| import android.widget.LinearLayout; |
| import android.widget.TabHost; |
| import android.widget.TabWidget; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| |
| public class AppsCustomizeTabHost extends FrameLayout implements LauncherTransitionable, Insettable { |
| static final String LOG_TAG = "AppsCustomizeTabHost"; |
| |
| private static final String APPS_TAB_TAG = "APPS"; |
| private static final String WIDGETS_TAB_TAG = "WIDGETS"; |
| |
| private AppsCustomizePagedView mPagedView; |
| private View mContent; |
| private boolean mInTransition = false; |
| |
| private final Rect mInsets = new Rect(); |
| |
| public AppsCustomizeTabHost(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| /** |
| * Convenience methods to select specific tabs. We want to set the content type immediately |
| * in these cases, but we note that we still call setCurrentTabByTag() so that the tab view |
| * reflects the new content (but doesn't do the animation and logic associated with changing |
| * tabs manually). |
| */ |
| void setContentTypeImmediate(AppsCustomizePagedView.ContentType type) { |
| mPagedView.setContentType(type); |
| } |
| |
| public void setCurrentTabFromContent(AppsCustomizePagedView.ContentType type) { |
| setContentTypeImmediate(type); |
| } |
| |
| @Override |
| public void setInsets(Rect insets) { |
| mInsets.set(insets); |
| LayoutParams flp = (LayoutParams) mContent.getLayoutParams(); |
| flp.topMargin = insets.top; |
| flp.bottomMargin = insets.bottom; |
| flp.leftMargin = insets.left; |
| flp.rightMargin = insets.right; |
| mContent.setLayoutParams(flp); |
| } |
| |
| /** |
| * Setup the tab host and create all necessary tabs. |
| */ |
| @Override |
| protected void onFinishInflate() { |
| mPagedView = (AppsCustomizePagedView) findViewById(R.id.apps_customize_pane_content); |
| mContent = findViewById(R.id.content); |
| } |
| |
| public String getContentTag() { |
| return getTabTagForContentType(mPagedView.getContentType()); |
| } |
| |
| /** |
| * Returns the content type for the specified tab tag. |
| */ |
| public AppsCustomizePagedView.ContentType getContentTypeForTabTag(String tag) { |
| if (tag.equals(APPS_TAB_TAG)) { |
| return AppsCustomizePagedView.ContentType.Applications; |
| } else if (tag.equals(WIDGETS_TAB_TAG)) { |
| return AppsCustomizePagedView.ContentType.Widgets; |
| } |
| return AppsCustomizePagedView.ContentType.Applications; |
| } |
| |
| /** |
| * Returns the tab tag for a given content type. |
| */ |
| public String getTabTagForContentType(AppsCustomizePagedView.ContentType type) { |
| if (type == AppsCustomizePagedView.ContentType.Applications) { |
| return APPS_TAB_TAG; |
| } else if (type == AppsCustomizePagedView.ContentType.Widgets) { |
| return WIDGETS_TAB_TAG; |
| } |
| return APPS_TAB_TAG; |
| } |
| |
| /** |
| * Disable focus on anything under this view in the hierarchy if we are not visible. |
| */ |
| @Override |
| public int getDescendantFocusability() { |
| if (getVisibility() != View.VISIBLE) { |
| return ViewGroup.FOCUS_BLOCK_DESCENDANTS; |
| } |
| return super.getDescendantFocusability(); |
| } |
| |
| void reset() { |
| // Reset immediately |
| mPagedView.reset(); |
| } |
| |
| public void onWindowVisible() { |
| if (getVisibility() == VISIBLE) { |
| mContent.setVisibility(VISIBLE); |
| // We unload the widget previews when the UI is hidden, so need to reload pages |
| // Load the current page synchronously, and the neighboring pages asynchronously |
| mPagedView.loadAssociatedPages(mPagedView.getCurrentPage(), true); |
| mPagedView.loadAssociatedPages(mPagedView.getCurrentPage()); |
| } |
| } |
| |
| public void onTrimMemory() { |
| mContent.setVisibility(GONE); |
| // Clear the widget pages of all their subviews - this will trigger the widget previews |
| // to delete their bitmaps |
| mPagedView.clearAllWidgetPages(); |
| } |
| |
| @Override |
| public ViewGroup getContent() { |
| return mPagedView; |
| } |
| |
| public boolean isInTransition() { |
| return mInTransition; |
| } |
| |
| /* LauncherTransitionable overrides */ |
| @Override |
| public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { |
| mPagedView.onLauncherTransitionPrepare(l, animated, toWorkspace); |
| mInTransition = true; |
| |
| if (toWorkspace) { |
| // Going from All Apps -> Workspace |
| setVisibilityOfSiblingsWithLowerZOrder(VISIBLE); |
| } else { |
| // Going from Workspace -> All Apps |
| mContent.setVisibility(VISIBLE); |
| |
| // Make sure the current page is loaded (we start loading the side pages after the |
| // transition to prevent slowing down the animation) |
| // TODO: revisit this |
| mPagedView.loadAssociatedPages(mPagedView.getCurrentPage()); |
| } |
| } |
| |
| @Override |
| public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { |
| mPagedView.onLauncherTransitionStart(l, animated, toWorkspace); |
| } |
| |
| @Override |
| public void onLauncherTransitionStep(Launcher l, float t) { |
| mPagedView.onLauncherTransitionStep(l, t); |
| } |
| |
| @Override |
| public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { |
| mPagedView.onLauncherTransitionEnd(l, animated, toWorkspace); |
| mInTransition = false; |
| |
| if (!toWorkspace) { |
| // Make sure adjacent pages are loaded (we wait until after the transition to |
| // prevent slowing down the animation) |
| mPagedView.loadAssociatedPages(mPagedView.getCurrentPage()); |
| |
| // Opening apps, need to announce what page we are on. |
| AccessibilityManager am = (AccessibilityManager) |
| getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); |
| if (am.isEnabled()) { |
| // Notify the user when the page changes |
| announceForAccessibility(mPagedView.getCurrentPageDescription()); |
| } |
| |
| // Going from Workspace -> All Apps |
| // NOTE: We should do this at the end since we check visibility state in some of the |
| // cling initialization/dismiss code above. |
| setVisibilityOfSiblingsWithLowerZOrder(INVISIBLE); |
| } |
| } |
| |
| private void setVisibilityOfSiblingsWithLowerZOrder(int visibility) { |
| ViewGroup parent = (ViewGroup) getParent(); |
| if (parent == null) return; |
| |
| View overviewPanel = ((Launcher) getContext()).getOverviewPanel(); |
| final int count = parent.getChildCount(); |
| if (!isChildrenDrawingOrderEnabled()) { |
| for (int i = 0; i < count; i++) { |
| final View child = parent.getChildAt(i); |
| if (child == this) { |
| break; |
| } else { |
| if (child.getVisibility() == GONE || child == overviewPanel) { |
| continue; |
| } |
| child.setVisibility(visibility); |
| } |
| } |
| } else { |
| throw new RuntimeException("Failed; can't get z-order of views"); |
| } |
| } |
| } |