/**
* Sets the {@link ImageView} the resource will be loaded into, cancels any existing loads into
* the view, and frees any resources Glide may have previously loaded into the view so they may be
* reused.
*
* @see RequestManager#clear(Target)
* @param view The view to cancel previous loads for and load the new resource into.
* @return The {@link com.bumptech.glide.request.target.Target} used to wrap the given {@link
* ImageView}.
*/
public Target<TranscodeType> into(ImageView view) {
Util.assertMainThread();
if (view == null) {
throw new IllegalArgumentException("You must pass in a non null View");
}
if (!requestOptions.isTransformationSet() && view.getScaleType() != null) {
if (requestOptions.isLocked()) {
requestOptions = requestOptions.clone();
}
switch (view.getScaleType()) {
case CENTER_CROP:
requestOptions.optionalCenterCrop(context);
break;
case FIT_CENTER:
case FIT_START:
case FIT_END:
requestOptions.optionalFitCenter(context);
break;
// $CASES-OMITTED$
default:
// Do nothing.
}
}
return into(context.buildImageViewTarget(view, transcodeClass));
}
private Request buildRequest(Target<TranscodeType> target) {
return buildRequestRecursive(
target,
null,
transitionOptions,
requestOptions.getPriority(),
requestOptions.getOverrideWidth(),
requestOptions.getOverrideHeight());
}
public RequestBuilder<TranscodeType> apply(BaseRequestOptions requestOptions) {
Preconditions.checkNotNull(requestOptions);
this.requestOptions =
DEFAULT_REQUEST_OPTIONS.equals(this.requestOptions)
? requestOptions
: this.requestOptions.apply(requestOptions);
return this;
}
private Priority getThumbnailPriority(Priority current) {
switch (current) {
case LOW:
return Priority.NORMAL;
case NORMAL:
return Priority.HIGH;
case HIGH:
case IMMEDIATE:
return Priority.IMMEDIATE;
default:
throw new IllegalArgumentException("unknown priority: " + requestOptions.getPriority());
}
}
/**
* Set the target the resource will be loaded into.
*
* @param target The target to load the resource into.
* @return The given target.
* @see RequestManager#clear(Target)
*/
public <Y extends Target<TranscodeType>> Y into(Y target) {
Util.assertMainThread();
if (target == null) {
throw new IllegalArgumentException("You must pass in a non null Target");
}
if (!isModelSet) {
throw new IllegalArgumentException("You must call #load() before calling #into()");
}
Request previous = target.getRequest();
if (previous != null) {
requestManager.clear(target);
}
requestOptions.lock();
Request request = buildRequest(target);
target.setRequest(request);
requestManager.track(target, request);
return target;
}
private Request obtainRequest(
Target<TranscodeType> target,
BaseRequestOptions<?> requestOptions,
RequestCoordinator requestCoordinator,
TransitionOptions<?, ? super TranscodeType> transitionOptions,
Priority priority,
int overrideWidth,
int overrideHeight) {
requestOptions.lock();
return SingleRequest.obtain(
context,
model,
transcodeClass,
requestOptions,
overrideWidth,
overrideHeight,
priority,
target,
requestListener,
requestCoordinator,
context.getEngine(),
transitionOptions.getTransitionFactory());
}
private Request buildRequestRecursive(
Target<TranscodeType> target,
@Nullable ThumbnailRequestCoordinator parentCoordinator,
TransitionOptions<?, ? super TranscodeType> transitionOptions,
Priority priority,
int overrideWidth,
int overrideHeight) {
if (thumbnailBuilder != null) {
// Recursive case: contains a potentially recursive thumbnail request builder.
if (isThumbnailBuilt) {
throw new IllegalStateException(
"You cannot use a request as both the main request and a "
+ "thumbnail, consider using clone() on the request(s) passed to thumbnail()");
}
TransitionOptions<?, ? super TranscodeType> thumbTransitionOptions =
thumbnailBuilder.transitionOptions;
if (DEFAULT_ANIMATION_OPTIONS.equals(thumbTransitionOptions)) {
thumbTransitionOptions = transitionOptions;
}
Priority thumbPriority =
thumbnailBuilder.requestOptions.isPrioritySet()
? thumbnailBuilder.requestOptions.getPriority()
: getThumbnailPriority(priority);
int thumbOverrideWidth = thumbnailBuilder.requestOptions.getOverrideWidth();
int thumbOverrideHeight = thumbnailBuilder.requestOptions.getOverrideHeight();
if (Util.isValidDimensions(overrideWidth, overrideHeight)
&& !thumbnailBuilder.requestOptions.isValidOverride()) {
thumbOverrideWidth = requestOptions.getOverrideWidth();
thumbOverrideHeight = requestOptions.getOverrideHeight();
}
ThumbnailRequestCoordinator coordinator = new ThumbnailRequestCoordinator(parentCoordinator);
Request fullRequest =
obtainRequest(
target,
requestOptions,
coordinator,
transitionOptions,
priority,
overrideWidth,
overrideHeight);
isThumbnailBuilt = true;
// Recursively generate thumbnail requests.
Request thumbRequest =
thumbnailBuilder.buildRequestRecursive(
target,
coordinator,
thumbTransitionOptions,
thumbPriority,
thumbOverrideWidth,
thumbOverrideHeight);
isThumbnailBuilt = false;
coordinator.setRequests(fullRequest, thumbRequest);
return coordinator;
} else if (thumbSizeMultiplier != null) {
// Base case: thumbnail multiplier generates a thumbnail request, but cannot recurse.
ThumbnailRequestCoordinator coordinator = new ThumbnailRequestCoordinator(parentCoordinator);
Request fullRequest =
obtainRequest(
target,
requestOptions,
coordinator,
transitionOptions,
priority,
overrideWidth,
overrideHeight);
BaseRequestOptions<?> thumbnailOptions =
requestOptions.clone().sizeMultiplier(thumbSizeMultiplier);
Request thumbnailRequest =
obtainRequest(
target,
thumbnailOptions,
coordinator,
transitionOptions,
getThumbnailPriority(priority),
overrideWidth,
overrideHeight);
coordinator.setRequests(fullRequest, thumbnailRequest);
return coordinator;
} else {
// Base case: no thumbnail.
return obtainRequest(
target,
requestOptions,
parentCoordinator,
transitionOptions,
priority,
overrideWidth,
overrideHeight);
}
}