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import frameCommon = require("ui/frame/frame-common");
import definition = require("ui/frame");
import pages = require("ui/page");
import trace = require("trace");
import observable = require("data/observable");
import utils = require("utils/utils");
import view = require("ui/core/view");
import application = require("application");
declare var exports;
require("utils/module-merge").merge(frameCommon, exports);
var TAG = "_fragmentTag";
var OWNER = "_owner";
var HIDDEN = "_hidden";
var INTENT_EXTRA = "com.tns.activity";
var navDepth = 0;
class PageFragmentBody extends android.app.Fragment {
public frame: Frame;
public entry: definition.BackstackEntry;
constructor(frame: Frame, entry: definition.BackstackEntry) {
super();
this.frame = frame;
this.entry = entry;
return global.__native(this);
}
onAttach(activity: android.app.Activity) {
super.onAttach(activity);
trace.write(this.getTag() + ".onAttach();", trace.categories.NativeLifecycle);
}
onCreate(savedInstanceState: android.os.Bundle) {
super.onCreate(savedInstanceState);
trace.write(this.getTag() + ".onCreate(); savedInstanceState: " + savedInstanceState, trace.categories.NativeLifecycle);
}
onCreateView(inflater: android.view.LayoutInflater, container: android.view.ViewGroup, savedInstanceState: android.os.Bundle): android.view.View {
trace.write(this.getTag() + ".onCreateView(); container: " + container + "; savedInstanceState: " + savedInstanceState, trace.categories.NativeLifecycle);
var entry: definition.BackstackEntry = this.entry;
var page: pages.Page = entry.resolvedPage;
if (savedInstanceState && savedInstanceState.getBoolean(HIDDEN, false)) {
// Manually hide the fragment if it was hidden before as Android will not do this every time.
super.getFragmentManager().beginTransaction().hide(this).commit();
// As the page will not be added to the frame it won't be attached
// We should attach it manually so that it creates its nativeView
page._onAttached(this.getActivity());
}
else {
onFragmentShown(this);
}
trace.write(this.getTag() + ".onCreateView(); nativeView: " + page._nativeView, trace.categories.NativeLifecycle);
return page._nativeView;
}
onHiddenChanged(hidden: boolean) {
super.onHiddenChanged(hidden);
trace.write(this.getTag() + ".onHiddenChanged(); hidden: " + hidden, trace.categories.NativeLifecycle);
if (hidden) {
onFragmentHidden(this);
}
else {
onFragmentShown(this);
}
}
onActivityCreated(savedInstanceState: android.os.Bundle) {
super.onActivityCreated(savedInstanceState);
trace.write(this.getTag() + ".onActivityCreated(); savedInstanceState: " + savedInstanceState, trace.categories.NativeLifecycle);
}
onSaveInstanceState(outState: android.os.Bundle) {
super.onSaveInstanceState(outState);
trace.write(this.getTag() + ".onSaveInstanceState();", trace.categories.NativeLifecycle);
if (this.isHidden()) {
outState.putBoolean(HIDDEN, true);
}
}
onViewStateRestored(savedInstanceState: android.os.Bundle) {
super.onViewStateRestored(savedInstanceState);
trace.write(this.getTag() + ".onViewStateRestored(); savedInstanceState: " + savedInstanceState, trace.categories.NativeLifecycle);
}
onStart() {
super.onStart();
trace.write(this.getTag() + ".onStart();", trace.categories.NativeLifecycle);
}
onResume() {
super.onResume();
trace.write(this.getTag() + ".onResume();", trace.categories.NativeLifecycle);
}
onPause() {
super.onPause();
trace.write(this.getTag() + ".onPause();", trace.categories.NativeLifecycle);
}
onStop() {
super.onStop();
trace.write(this.getTag() + ".onStop();", trace.categories.NativeLifecycle);
}
onDestroyView() {
super.onDestroyView();
trace.write(this.getTag() + ".onDestroyView();", trace.categories.NativeLifecycle);
onFragmentHidden(this);
}
onDestroy() {
super.onDestroy();
trace.write(this.getTag() + ".onDestroy();", trace.categories.NativeLifecycle);
// Explicitly free resources to allow Java Garbage collector to release resources associated with JavaScript implementations - e.g. large image files.
// Although we hint the V8 with the externally allocated memory, synchronization between the two GCs is not deterministic without an explicit call.
// TODO: Revisit this explicit Garbage Collector call when possible.
utils.GC();
}
onDetach() {
super.onDetach();
trace.write(this.getTag() + ".onDetach();", trace.categories.NativeLifecycle);
}
}
function onFragmentShown(fragment: PageFragmentBody) {
// TODO: consider putting entry and page in queue so we can safely extract them here. Pass the index of current navigation and extract it from here.
// After extracting navigation info - remove this index from navigation stack.
var frame = fragment.frame;
var entry: definition.BackstackEntry = fragment.entry;
var page: pages.Page = entry.resolvedPage;
frame._currentEntry = entry;
// notify the page
frame._addView(page);
page.onNavigatedTo(entry.entry.context);
frame._processNavigationQueue(page);
}
function onFragmentHidden(fragment: PageFragmentBody) {
var entry: definition.BackstackEntry = fragment.entry;
var page: pages.Page = entry.resolvedPage;
// This might be a second call if the fragment is hidden and then destroyed.
if (page && page.frame) {
var frame = page.frame;
frame._removeView(page);
}
}
export class Frame extends frameCommon.Frame {
private _android: AndroidFrame;
private _delayedNavigationEntry: definition.BackstackEntry;
private _isFirstNavigation = false;
private _containerViewId: number;
constructor() {
super();
this._containerViewId = android.view.View.generateViewId();
this._android = new AndroidFrame(this);
}
public static get defaultAnimatedNavigation(): boolean {
return frameCommon.Frame.defaultAnimatedNavigation;
}
public static set defaultAnimatedNavigation(value: boolean) {
frameCommon.Frame.defaultAnimatedNavigation = value;
}
get containerViewId(): number {
return this._containerViewId;
}
get android(): definition.AndroidFrame {
return this._android;
}
get _nativeView(): any {
return this._android.rootViewGroup;
}
public _navigateCore(backstackEntry: definition.BackstackEntry) {
var activity = this._android.activity;
if (!activity) {
// We do not have an Activity yet associated. In this case we have two execution paths:
// 1. This is the main frame for the application
// 2. This is an inner frame which requires a new Activity
var currentActivity = this._android.currentActivity;
if (currentActivity) {
startActivity(currentActivity, backstackEntry.entry);
}
this._delayedNavigationEntry = backstackEntry;
return;
}
var manager = activity.getFragmentManager();
var fragmentTransaction = manager.beginTransaction();
var newFragmentTag = "fragment" + this.backStack.length;
var newFragment = new PageFragmentBody(this, backstackEntry);
// remember the fragment tag at page level so that we can retrieve the fragment associated with a Page instance
backstackEntry.resolvedPage[TAG] = newFragmentTag;
navDepth++;
trace.write("Frame<" + this._domId + ">.fragmentTransaction PUSH depth = " + navDepth, trace.categories.Navigation);
if (this._isFirstNavigation) {
fragmentTransaction.add(this.containerViewId, newFragment, newFragmentTag);
trace.write("fragmentTransaction.add(" + this.containerViewId + ", " + newFragment + ", " + newFragmentTag + ");", trace.categories.NativeLifecycle);
}
else {
if (this.android.cachePagesOnNavigate) {
var currentFragmentTag = this.currentPage[TAG];
var currentFragment = manager.findFragmentByTag(currentFragmentTag);
if (currentFragment) {
fragmentTransaction.hide(currentFragment);
trace.write("fragmentTransaction.hide(" + currentFragment + ");", trace.categories.NativeLifecycle);
}
else {
trace.write("Could not find " + currentFragmentTag + " to hide", trace.categories.NativeLifecycle);
}
fragmentTransaction.add(this.containerViewId, newFragment, newFragmentTag);
trace.write("fragmentTransaction.add(" + this.containerViewId + ", " + newFragment + ", " + newFragmentTag + ");", trace.categories.NativeLifecycle);
}
else {
fragmentTransaction.replace(this.containerViewId, newFragment, newFragmentTag);
trace.write("fragmentTransaction.replace(" + this.containerViewId + ", " + newFragment + ", " + newFragmentTag + ");", trace.categories.NativeLifecycle);
}
if (this.backStack.length > 0) {
fragmentTransaction.addToBackStack(newFragmentTag);
trace.write("fragmentTransaction.addToBackStack(" + newFragmentTag + ");", trace.categories.NativeLifecycle);
}
}
if (!this._isFirstNavigation) {
var animated = this._getIsAnimatedNavigation(backstackEntry.entry);
if (this.android.cachePagesOnNavigate) {
// Apparently, there is an Android bug with when hiding fragments with animation.
// https://code.google.com/p/android/issues/detail?id=32405
// When bug is fixed use animated variable.
fragmentTransaction.setTransition(android.app.FragmentTransaction.TRANSIT_NONE);
}
else {
var transition = animated ? android.app.FragmentTransaction.TRANSIT_FRAGMENT_OPEN : android.app.FragmentTransaction.TRANSIT_NONE;
fragmentTransaction.setTransition(transition);
}
}
fragmentTransaction.commit();
trace.write("fragmentTransaction.commit();", trace.categories.NativeLifecycle);
}
public _goBackCore(entry: definition.NavigationEntry) {
navDepth--;
trace.write("Frame<" + this._domId + ">.fragmentTransaction POP depth = " + navDepth, trace.categories.Navigation);
var manager = this._android.activity.getFragmentManager();
if (manager.getBackStackEntryCount() > 0) {
manager.popBackStack();
}
}
public _createUI() {
// TODO: Implement for nested frames
// this._android.layout = new android.widget.FrameLayout(this._context);
// this._android.layout.setId(android.view.View.generateViewId());
}
public _onActivityCreated(isRestart: boolean) {
this._onAttached(this._android.activity);
var backstackEntry = this.currentEntry || this._delayedNavigationEntry;
if (isRestart) {
this._onNavigatingTo(backstackEntry);
this._onNavigatedTo(backstackEntry, false);
}
else {
this._isFirstNavigation = true;
this._navigateCore(backstackEntry);
this._isFirstNavigation = false;
}
this._delayedNavigationEntry = undefined;
}
public _popFromFrameStack() {
if (!this._isInFrameStack) {
return;
}
super._popFromFrameStack();
if (this._android.hasOwnActivity) {
this._android.activity.finish();
}
}
public _clearAndroidReference() {
// we should keep the reference to underlying native object, since frame can contain many pages.
}
}
declare module com {
module tns {
class NativeScriptActivity extends android.app.Activity {
protected onCreate(savedInstanceState: android.os.Bundle);
protected onStart();
protected onStop();
protected onDestroy();
protected onActivityResult(requestCode: number, resultCode: number, data: android.content.Intent)
}
}
}
class NativeActivity extends com.tns.NativeScriptActivity {
private androidFrame: AndroidFrame;
private get frame(): Frame {
if (this.androidFrame) {
return this.androidFrame.owner;
}
return null;
}
onCreate(savedInstanceState: android.os.Bundle) {
trace.write("NativeScriptActivity.onCreate(); savedInstanceState: " + savedInstanceState, trace.categories.NativeLifecycle);
// Find the frame for this activity.
var frameId = this.getIntent().getExtras().getInt(INTENT_EXTRA);
for (var i = 0; i < framesCache.length; i++) {
var aliveFrame = framesCache[i].get();
if (aliveFrame && aliveFrame.frameId === frameId) {
this.androidFrame = aliveFrame;
break;
}
}
if (!this.androidFrame) {
throw new Error("Could not find AndroidFrame for Activity");
}
// If there is savedInstanceState this call will recreate all fragments that were previously in the navigation.
// We take care of associating them with a Page from our backstack in the onAttachFragment callback.
super.onCreate(savedInstanceState);
this.androidFrame.setActivity(this);
// Create and set content container.
var root = new view.NativeViewGroup(this);
root[OWNER] = this.frame;
this.androidFrame.rootViewGroup = root;
this.androidFrame.rootViewGroup.setId(this.frame.containerViewId);
this.setContentView(this.androidFrame.rootViewGroup);
// If there is no instance state - we call navigateCore from here since Activity is created AFTER the navigate call and navigateCore will fail.
var isRestart = !!savedInstanceState;
this.frame._onActivityCreated(isRestart);
}
onActivityResult(requestCode: number, resultCode: number, data: android.content.Intent) {
super.onActivityResult(requestCode, resultCode, data);
trace.write("NativeScriptActivity.onActivityResult();", trace.categories.NativeLifecycle);
var result = application.android.onActivityResult;
if (result) {
result(requestCode, resultCode, data);
}
}
onAttachFragment(fragment: android.app.Fragment) {
trace.write("NativeScriptActivity.onAttachFragment() : " + fragment.getTag(), trace.categories.NativeLifecycle);
super.onAttachFragment(fragment);
if (!(<PageFragmentBody>fragment).entry) {
// There is no entry set to the fragment, so this must be destroyed fragment that was recreated by Android.
// We should find its corresponding page in our backstack and set it manually.
findPageForFragment(fragment, this.frame);
}
}
onStart() {
super.onStart();
trace.write("NativeScriptActivity.onStart();", trace.categories.NativeLifecycle);
this.frame.onLoaded();
}
onStop() {
super.onStop();
trace.write("NativeScriptActivity.onStop();", trace.categories.NativeLifecycle);
this.frame.onUnloaded();
}
onDestroy() {
// TODO: Implement uninitialized(detached) routine
var frame = this.frame;
frame._onDetached(true);
// There might be cached pages in the backstack - force detach them too.
for (var i = 0; i < frame.backStack.length; i++) {
frame.backStack[i].resolvedPage._onDetached(true);
}
this.androidFrame.reset();
super.onDestroy();
trace.write("NativeScriptActivity.onDestroy();", trace.categories.NativeLifecycle);
}
onOptionsItemSelected(menuItem) {
if (!this.androidFrame.hasListeners(frameCommon.knownEvents.android.optionSelected)) {
return false;
}
var data: definition.AndroidOptionEventData = {
handled: false,
eventName: frameCommon.knownEvents.android.optionSelected,
item: menuItem,
object: this.androidFrame
}
this.androidFrame.notify(data);
return data.handled;
}
onBackPressed() {
trace.write("NativeScriptActivity.onBackPressed;", trace.categories.NativeLifecycle);
if (!frameCommon.goBack()) {
super.onBackPressed();
}
}
onLowMemory() {
gc();
java.lang.System.gc();
super.onLowMemory();
}
onTrimMemory(level) {
gc();
java.lang.System.gc();
super.onTrimMemory(level);
}
}
var framesCounter = 0;
var framesCache: Array<WeakRef<AndroidFrame>> = new Array<WeakRef<AndroidFrame>>();
class AndroidFrame extends observable.Observable implements definition.AndroidFrame {
public rootViewGroup: android.view.ViewGroup;
public hasOwnActivity = false;
public showActionBar = false;
public frameId;
private _activity: android.app.Activity;
private _owner: Frame;
private _cachePagesOnNavigate: boolean;
constructor(owner: Frame) {
super();
this._owner = owner;
this.frameId = framesCounter++;
framesCache.push(new WeakRef(this));
}
public get activity(): android.app.Activity {
if (this._activity) {
return this._activity;
}
// traverse the parent chain for an ancestor Frame
var currView = this._owner.parent;
while (currView) {
if (currView instanceof Frame) {
return (<Frame>currView).android.activity;
}
currView = currView.parent;
}
return undefined;
}
public get actionBar(): android.app.ActionBar {
var activity = this.currentActivity;
if (!activity) {
return undefined;
}
var bar = activity.getActionBar();
if (!bar) {
return undefined;
}
return bar;
}
public get currentActivity(): android.app.Activity {
var activity = this.activity;
if (activity) {
return activity;
}
var stack = frameCommon.stack(),
length = stack.length,
i = length - 1,
frame: definition.Frame;
for (i; i >= 0; i--) {
frame = stack[i];
activity = frame.android.activity;
if (activity) {
return activity;
}
}
return undefined;
}
public get owner(): Frame {
return this._owner;
}
public get cachePagesOnNavigate(): boolean {
return this._cachePagesOnNavigate;
}
public set cachePagesOnNavigate(value: boolean) {
if (this._cachePagesOnNavigate !== value) {
if (this._owner.backStack.length > 0) {
throw new Error("Cannot set cachePagesOnNavigate if there are items in the back stack.");
}
this._cachePagesOnNavigate = value;
}
}
public onActivityRequested(intent: android.content.Intent): Object {
if (this.activity) {
throw new Error("Frame already attached to an Activity");
}
intent.putExtra(INTENT_EXTRA, this.frameId);
this.hasOwnActivity = true;
return this.createActivity(intent);
}
public canGoBack() {
if (!this._activity) {
return false;
}
// can go back only if it is not the main one.
return this._activity.getIntent().Action !== android.content.Intent.ACTION_MAIN;
}
public reset() {
// TODO: Cleanup, do we need more?
delete this.rootViewGroup[OWNER];
this._activity = undefined;
this.rootViewGroup = undefined;
}
public setActivity(value: android.app.Activity) {
this._activity = value;
}
private createActivity(intent: android.content.Intent) {
// TODO: check intent
return NativeActivity;
}
}
function findPageForFragment(fragment: android.app.Fragment, frame: Frame) {
var fragmentTag = fragment.getTag();
var page: pages.Page;
var entry: definition.BackstackEntry;
trace.write("Attached fragment with no page: " + fragmentTag, trace.categories.NativeLifecycle);
if (frame.currentPage && frame.currentPage[TAG] === fragmentTag) {
page = frame.currentPage;
entry = frame.currentEntry;
trace.write("Current page matches fragment: " + fragmentTag, trace.categories.NativeLifecycle);
}
else {
for (var i = 0; i < frame.backStack.length; i++) {
entry = frame.backStack[i];
if (frame.backStack[i].resolvedPage[TAG] === fragmentTag) {
entry = frame.backStack[i];
break;
}
}
if (entry) {
trace.write("Found entry:" + entry + " for fragment: " + fragmentTag, trace.categories.NativeLifecycle);
page = entry.resolvedPage;
}
}
if (page) {
(<PageFragmentBody>fragment).frame = frame;
(<PageFragmentBody>fragment).entry = entry;
page[TAG] = fragmentTag;
}
else {
//throw new Error("Could not find Page for Fragment.");
}
}
function startActivity(activity: android.app.Activity, entry: definition.NavigationEntry) {
var intent = new android.content.Intent(activity, (<any>com).tns.NativeScriptActivity.class);
intent.Action = android.content.Intent.ACTION_DEFAULT;
// TODO: Put the navigation context (if any) in the intent
activity.startActivity(intent);
}