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Diffstat (limited to 'mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java')
-rw-r--r--mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java70
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
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+++ b/mobile/android/thirdparty/com/squareup/picasso/DeferredRequestCreator.java
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+/*
+ * 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);
+ }
+}