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author | Winson Chung <winsonc@google.com> | 2015-05-08 13:06:44 -0700 |
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committer | Winson Chung <winsonc@google.com> | 2015-05-08 21:41:40 +0000 |
commit | 9480415d9baf00ecfaac8ab3f608b16a1faa6518 (patch) | |
tree | d5c35dea3f60d64eaa926d48eb8094cd66deb115 /src/com/android/launcher3/BaseContainerView.java | |
parent | 4e267f4cdca3ec52aa55982560551ea766adf9be (diff) | |
download | android_packages_apps_Trebuchet-9480415d9baf00ecfaac8ab3f608b16a1faa6518.tar.gz android_packages_apps_Trebuchet-9480415d9baf00ecfaac8ab3f608b16a1faa6518.tar.bz2 android_packages_apps_Trebuchet-9480415d9baf00ecfaac8ab3f608b16a1faa6518.zip |
Make common base class to update container bounds and to handle scroll logic.
Bug: 20763871
Change-Id: I8c2f45cfb10964e4be7e9c07c89dd336585c9989
Diffstat (limited to 'src/com/android/launcher3/BaseContainerView.java')
-rw-r--r-- | src/com/android/launcher3/BaseContainerView.java | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/com/android/launcher3/BaseContainerView.java b/src/com/android/launcher3/BaseContainerView.java new file mode 100644 index 000000000..2a8443221 --- /dev/null +++ b/src/com/android/launcher3/BaseContainerView.java @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2015 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.content.Context; +import android.graphics.Rect; +import android.util.AttributeSet; +import android.widget.FrameLayout; + +/** + * A base container view, which supports resizing. + */ +public class BaseContainerView extends FrameLayout implements Insettable { + + protected Rect mInsets = new Rect(); + protected Rect mFixedBounds = new Rect(); + protected int mFixedBoundsContainerInset; + + public BaseContainerView(Context context) { + this(context, null); + } + + public BaseContainerView(Context context, AttributeSet attrs) { + this(context, attrs, 0); + } + + public BaseContainerView(Context context, AttributeSet attrs, int defStyleAttr) { + super(context, attrs, defStyleAttr); + mFixedBoundsContainerInset = context.getResources().getDimensionPixelSize( + R.dimen.container_fixed_bounds_inset); + } + + @Override + final public void setInsets(Rect insets) { + mInsets.set(insets); + onUpdateBackgrounds(); + onUpdatePaddings(); + } + + /** + * Sets the fixed bounds for this container view. + */ + final public void setFixedBounds(Rect fixedBounds) { + if (!fixedBounds.isEmpty() && !fixedBounds.equals(mFixedBounds)) { + mFixedBounds.set(fixedBounds); + if (Launcher.DISABLE_ALL_APPS_SEARCH_INTEGRATION) { + mFixedBounds.top = mInsets.top; + mFixedBounds.bottom = getMeasuredHeight(); + } + // To ensure that the child RecyclerView has the full width to handle touches right to + // the edge of the screen, we only apply the top and bottom padding to the bounds + mFixedBounds.inset(0, mFixedBoundsContainerInset); + onFixedBoundsUpdated(); + } + // Post the updates since they can trigger a relayout, and this call can be triggered from + // a layout pass itself. + post(new Runnable() { + @Override + public void run() { + onUpdateBackgrounds(); + onUpdatePaddings(); + } + }); + } + + /** + * Update the UI in response to a change in the fixed bounds. + */ + protected void onFixedBoundsUpdated() { + // Do nothing + } + + /** + * Update the paddings in response to a change in the bounds or insets. + */ + protected void onUpdatePaddings() { + // Do nothing + } + + /** + * Update the backgrounds in response to a change in the bounds or insets. + */ + protected void onUpdateBackgrounds() { + // Do nothing + } +}
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