diff options
Diffstat (limited to 'mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java')
-rw-r--r-- | mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java b/mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java new file mode 100644 index 000000000..fbdaab1c3 --- /dev/null +++ b/mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2013 Square, Inc. + * + * 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.squareup.picasso; + +import android.view.ViewTreeObserver; +import android.widget.ImageView; +import java.lang.ref.WeakReference; + +class DeferredRequestCreator implements ViewTreeObserver.OnPreDrawListener { + + final RequestCreator creator; + final WeakReference<ImageView> target; + Callback callback; + + DeferredRequestCreator(RequestCreator creator, ImageView target, Callback callback) { + this.creator = creator; + this.target = new WeakReference<ImageView>(target); + this.callback = callback; + target.getViewTreeObserver().addOnPreDrawListener(this); + } + + @Override public boolean onPreDraw() { + ImageView target = this.target.get(); + if (target == null) { + return true; + } + ViewTreeObserver vto = target.getViewTreeObserver(); + if (!vto.isAlive()) { + return true; + } + + int width = target.getMeasuredWidth(); + int height = target.getMeasuredHeight(); + + if (width <= 0 || height <= 0) { + return true; + } + + vto.removeOnPreDrawListener(this); + + this.creator.unfit().resize(width, height).into(target, callback); + return true; + } + + void cancel() { + callback = null; + ImageView target = this.target.get(); + if (target == null) { + return; + } + ViewTreeObserver vto = target.getViewTreeObserver(); + if (!vto.isAlive()) { + return; + } + vto.removeOnPreDrawListener(this); + } +} |