RoboSwag-components/src/main/java/ru/touchin/roboswag/components/navigation/ViewController.java

428 lines
15 KiB
Java

/*
* Copyright (c) 2015 RoboSwag (Gavriil Sitnikov, Vsevolod Ivanov)
*
* This file is part of RoboSwag library.
*
* 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 ru.touchin.roboswag.components.navigation;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.CallSuper;
import android.support.annotation.ColorInt;
import android.support.annotation.ColorRes;
import android.support.annotation.DrawableRes;
import android.support.annotation.IdRes;
import android.support.annotation.LayoutRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.annotation.StringRes;
import android.support.v4.app.Fragment;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import ru.touchin.roboswag.components.navigation.activities.ViewControllerActivity;
import ru.touchin.roboswag.components.navigation.fragments.ViewControllerFragment;
import ru.touchin.roboswag.components.utils.BaseLifecycleBindable;
import ru.touchin.roboswag.components.utils.LifecycleBindable;
import ru.touchin.roboswag.components.utils.UiUtils;
import ru.touchin.roboswag.core.log.Lc;
import ru.touchin.roboswag.core.utils.ShouldNotHappenException;
import rx.Observable;
import rx.Subscription;
import rx.functions.Action0;
import rx.functions.Action1;
/**
* Created by Gavriil Sitnikov on 21/10/2015.
* Class to control view of specific fragment, activity and application by logic bridge.
*
* @param <TActivity> Type of activity where such {@link ViewController} could be;
* @param <TFragment> Type of fragment where such {@link ViewController} could be;
*/
@SuppressWarnings("PMD.TooManyMethods")
public class ViewController<TActivity extends ViewControllerActivity<?>,
TFragment extends ViewControllerFragment<?, TActivity>>
implements LifecycleBindable {
@NonNull
private final TActivity activity;
@NonNull
private final TFragment fragment;
@NonNull
private final ViewGroup container;
@NonNull
private final BaseLifecycleBindable baseLifecycleBindable = new BaseLifecycleBindable();
private boolean destroyed;
@SuppressWarnings({"unchecked", "PMD.UnusedFormalParameter"})
//UnusedFormalParameter: savedInstanceState could be used by children
public ViewController(@NonNull final CreationContext creationContext, @Nullable final Bundle savedInstanceState) {
this.activity = (TActivity) creationContext.activity;
this.fragment = (TFragment) creationContext.fragment;
this.container = creationContext.container;
}
/**
* Returns activity where {@link ViewController} could be.
*
* @return Returns activity.
*/
@NonNull
public final TActivity getActivity() {
return activity;
}
/**
* Returns fragment where {@link ViewController} could be.
*
* @return Returns fragment.
*/
@NonNull
public final TFragment getFragment() {
return fragment;
}
/**
* Returns view instantiated in {@link #getFragment()} fragment attached to {@link #getActivity()} activity.
* Use it to inflate your views into at construction of this {@link ViewController}.
*
* @return Returns view.
*/
@NonNull
public final ViewGroup getContainer() {
return container;
}
/**
* Returns if {@link ViewController} destroyed or not.
*
* @return True if it is destroyed.
*/
public final boolean isDestroyed() {
return destroyed;
}
/**
* Return a localized string from the application's package's default string table.
*
* @param resId Resource id for the string
*/
@NonNull
public final String getString(@StringRes final int resId) {
return getActivity().getString(resId);
}
/**
* Return a localized formatted string from the application's package's default string table, substituting the format arguments as defined in
* {@link java.util.Formatter} and {@link java.lang.String#format}.
*
* @param resId Resource id for the format string
* @param formatArgs The format arguments that will be used for substitution.
*/
@NonNull
public final String getString(@StringRes final int resId, @NonNull final Object... formatArgs) {
return getActivity().getString(resId, formatArgs);
}
/**
* Set the view controller content from a layout resource.
* This layout is placed directly into the container's ({@link #getContainer()}) view hierarchy.
*
* @param layoutResId Resource ID to be inflated.
*/
public void setContentView(@LayoutRes final int layoutResId) {
if (getContainer().getChildCount() > 0) {
getContainer().removeAllViews();
}
UiUtils.inflateAndAdd(layoutResId, getContainer());
}
/**
* Set the view controller content to an explicit view.
* This view is placed directly into the container's ({@link #getContainer()}) view hierarchy.
*
* @param view The desired content to display.
*/
public void setContentView(@NonNull final View view) {
setContentView(view, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
}
/**
* Set the view controller content to an explicit view with specific layout parameters.
* This view is placed directly into the container's ({@link #getContainer()}) view hierarchy.
*
* @param view The desired content to display;
* @param layoutParams Layout parameters for the view.
*/
public void setContentView(@NonNull final View view, @NonNull final ViewGroup.LayoutParams layoutParams) {
if (getContainer().getChildCount() > 0) {
getContainer().removeAllViews();
}
getContainer().addView(view, layoutParams);
}
/**
* Look for a child view with the given id. If this view has the given id, return this view.
*
* @param id The id to search for;
* @return The view that has the given id in the hierarchy.
*/
@NonNull
@SuppressWarnings("unchecked")
public <T extends View> T findViewById(@IdRes final int id) {
final T viewById = (T) getContainer().findViewById(id);
if (viewById == null) {
throw new ShouldNotHappenException("No view for id=" + getActivity().getResources().getResourceName(id));
}
return viewById;
}
/**
* Return the color value associated with a particular resource ID.
* Starting in {@link android.os.Build.VERSION_CODES#M}, the returned
* color will be styled for the specified Context's theme.
*
* @param resId The resource id to search for data;
* @return int A single color value in the form 0xAARRGGBB.
*/
@ColorInt
public int getColor(@ColorRes final int resId) {
return getActivity().getColorCompat(resId);
}
/**
* Returns a drawable object associated with a particular resource ID.
* Starting in {@link android.os.Build.VERSION_CODES#LOLLIPOP}, the
* returned drawable will be styled for the specified Context's theme.
*
* @param resId The resource id to search for data;
* @return Drawable An object that can be used to draw this resource.
*/
@NonNull
public Drawable getDrawable(@DrawableRes final int resId) {
return getActivity().getDrawableCompat(resId);
}
/**
* Calls when activity configuring ActionBar, Toolbar, Sidebar etc.
* If it will be called or not depends on {@link Fragment#hasOptionsMenu()} and {@link Fragment#isMenuVisible()}.
*
* @param menu The options menu in which you place your items;
* @param inflater Helper to inflate menu items.
*/
public void onConfigureNavigation(@NonNull final Menu menu, @NonNull final MenuInflater inflater) {
// do nothing
}
/**
* Calls right after construction of {@link ViewController}.
* Happens at {@link ViewControllerFragment#onActivityCreated(View, ViewControllerActivity, Bundle)}.
*/
@CallSuper
public void onCreate() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
baseLifecycleBindable.onCreate();
}
/**
* Calls when {@link ViewController} have started.
* Happens at {@link ViewControllerFragment#onStart(View, ViewControllerActivity)}.
*/
@CallSuper
public void onStart() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
baseLifecycleBindable.onStart();
}
/**
* Called when fragment is moved in started state and it's {@link #getFragment().isMenuVisible()} sets to true.
* Usually it is indicating that user can't see fragment on screen and useful to track analytics events.
*/
public void onAppear() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
}
/**
* Calls when {@link ViewController} have resumed.
* Happens at {@link ViewControllerFragment#onResume(View, ViewControllerActivity)}.
*/
@CallSuper
public void onResume() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
}
/**
* Calls when {@link ViewController} have goes near out of memory state.
* Happens at {@link ViewControllerFragment#onLowMemory()}.
*/
@CallSuper
public void onLowMemory() {
//do nothing
}
/**
* Calls when {@link ViewController} have paused.
* Happens at {@link ViewControllerFragment#onPause(View, ViewControllerActivity)}.
*/
@CallSuper
public void onPause() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
}
/**
* Calls when {@link ViewController} should save it's state.
* Happens at {@link ViewControllerFragment#onSaveInstanceState(Bundle)}.
* Try not to use such method for saving state but use {@link ViewControllerFragment#getState()} from {@link #getFragment()}.
*/
@CallSuper
public void onSaveInstanceState(@NonNull final Bundle savedInstanceState) {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
}
/**
* Called when fragment is moved in stopped state or it's {@link #getFragment().isMenuVisible()} sets to false.
* Usually it is indicating that user can't see fragment on screen and useful to track analytics events.
*/
public void onDisappear() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
}
/**
* Calls when {@link ViewController} have stopped.
* Happens at {@link ViewControllerFragment#onStop(View, ViewControllerActivity)}.
*/
@CallSuper
public void onStop() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
baseLifecycleBindable.onStop();
}
/**
* Calls when {@link ViewController} have destroyed.
* Happens usually at {@link ViewControllerFragment#onDestroyView(View)}. In some cases at {@link ViewControllerFragment#onDestroy()}.
*/
@CallSuper
public void onDestroy() {
UiUtils.UI_LIFECYCLE_LC_GROUP.i(Lc.getCodePoint(this));
baseLifecycleBindable.onDestroy();
destroyed = true;
}
/**
* Similar to {@link ViewControllerFragment#onOptionsItemSelected(MenuItem)}.
*
* @param item Selected menu item;
* @return True if selection processed.
*/
public boolean onOptionsItemSelected(@NonNull final MenuItem item) {
return false;
}
@SuppressWarnings("CPD-START")
//CPD: it is same as in other implementation based on BaseLifecycleBindable
@NonNull
@Override
public <T> Subscription bind(@NonNull final Observable<T> observable, @NonNull final Action1<T> onNextAction) {
return baseLifecycleBindable.bind(observable, onNextAction);
}
@NonNull
@Override
public <T> Subscription untilStop(@NonNull final Observable<T> observable) {
return baseLifecycleBindable.untilStop(observable);
}
@NonNull
@Override
public <T> Subscription untilStop(@NonNull final Observable<T> observable, @NonNull final Action1<T> onNextAction) {
return baseLifecycleBindable.untilStop(observable, onNextAction);
}
@NonNull
@Override
public <T> Subscription untilStop(@NonNull final Observable<T> observable,
@NonNull final Action1<T> onNextAction,
@NonNull final Action1<Throwable> onErrorAction) {
return baseLifecycleBindable.untilStop(observable, onNextAction, onErrorAction);
}
@NonNull
@Override
public <T> Subscription untilStop(@NonNull final Observable<T> observable,
@NonNull final Action1<T> onNextAction,
@NonNull final Action1<Throwable> onErrorAction,
@NonNull final Action0 onCompletedAction) {
return baseLifecycleBindable.untilStop(observable, onNextAction, onErrorAction, onCompletedAction);
}
@NonNull
@Override
public <T> Subscription untilDestroy(@NonNull final Observable<T> observable) {
return baseLifecycleBindable.untilDestroy(observable);
}
@NonNull
@Override
public <T> Subscription untilDestroy(@NonNull final Observable<T> observable, @NonNull final Action1<T> onNextAction) {
return baseLifecycleBindable.untilDestroy(observable, onNextAction);
}
@NonNull
@Override
public <T> Subscription untilDestroy(@NonNull final Observable<T> observable,
@NonNull final Action1<T> onNextAction,
@NonNull final Action1<Throwable> onErrorAction) {
return baseLifecycleBindable.untilDestroy(observable, onNextAction, onErrorAction);
}
@NonNull
@Override
public <T> Subscription untilDestroy(@NonNull final Observable<T> observable,
@NonNull final Action1<T> onNextAction,
@NonNull final Action1<Throwable> onErrorAction,
@NonNull final Action0 onCompletedAction) {
return baseLifecycleBindable.untilDestroy(observable, onNextAction, onErrorAction, onCompletedAction);
}
@SuppressWarnings("CPD-END")
//CPD: it is same as in other implementation based on BaseLifecycleBindable
/**
* Helper class to simplify constructor override.
*/
public static class CreationContext {
@NonNull
private final ViewControllerActivity activity;
@NonNull
private final ViewControllerFragment fragment;
@NonNull
private final ViewGroup container;
public CreationContext(@NonNull final ViewControllerActivity activity,
@NonNull final ViewControllerFragment fragment,
@NonNull final ViewGroup container) {
this.activity = activity;
this.fragment = fragment;
this.container = container;
}
}
}