import PageModule = require("ui/page");

import TKUnit = require("../../TKUnit");

import LabelModule = require("ui/label");

import PageTestCommon = require("./page-tests-common");

import helper = require("../helper");

import frame = require("ui/frame");

import types = require("utils/types");

global.moduleMerge(PageTestCommon, exports);

export function test_NavigateToNewPage_WithAndroidCache() {

// Clear history if any.

helper.navigate(() => {

let launchPage = new PageModule.Page();

launchPage.id = "launchPage_test_NavigateToNewPage_WithAndroidCache";

return launchPage;

});

TKUnit.assertEqual(frame.topmost().backStack.length, 0, "The backstack should be empty before this test can be run.");

var testPage: PageModule.Page;

var label: LabelModule.Label;

var pageFactory = function (): PageModule.Page {

testPage = new PageModule.Page();

testPage.id = "testPage_test_NavigateToNewPage_WithAndroidCache";

label = new LabelModule.Label();

label.text = "The quick brown fox jumps over the lazy dog.";

testPage.content = label;

return testPage;

};

var androidFrame = frame.topmost().android;

var cachingBefore = androidFrame.cachePagesOnNavigate;

try {

androidFrame.cachePagesOnNavigate = true;

helper.navigateWithHistory(pageFactory);

helper.goBack();

}

finally {

androidFrame.cachePagesOnNavigate = cachingBefore;

}

TKUnit.assert(testPage.parent === undefined, "Page.parent should become undefined after navigating back");

TKUnit.assert(testPage.isLoaded === false, "Page.isLoaded should become false after navigating back");

TKUnit.assert(testPage.frame === undefined, "Page.frame should become undefined after navigating back");

TKUnit.assert(testPage._isAddedToNativeVisualTree === false, "Page._isAddedToNativeVisualTree should become false after navigating back");

TKUnit.assert(label._context === undefined, "InnerControl._context should not be set after navigate back.");

TKUnit.assert(label.android === undefined, "InnerControl.android should not be set after navigate back.");

TKUnit.assert(label._nativeView === undefined, "InnerControl._nativeView hould not be set after navigate back.");

TKUnit.assert(label.isLoaded === false, "InnerControl.isLoaded should become false after navigating back");

TKUnit.assert(label._isAddedToNativeVisualTree === false, "InnerControl._isAddedToNativeVisualTree should not be true after navigating back");

}

export var test_NavigateToNewPage_InnerControl = function () {

var testPage: PageModule.Page;

var pageFactory = function () {

testPage = new PageModule.Page();

testPage.id = "testPage_test_NavigateToNewPage_InnerControl";

PageTestCommon.addLabelToPage(testPage);

return testPage;

};

helper.navigateWithHistory(pageFactory);

helper.goBack();

var label = <LabelModule.Label>testPage.content;

TKUnit.assert(label._context === undefined, "InnerControl._context should be undefined after navigate back.");

TKUnit.assert(label.android === undefined, "InnerControl.android should be undefined after navigate back.");

TKUnit.assert(label._nativeView === undefined, "InnerControl._nativeView should be undefined after navigate back.");

TKUnit.assert(label.isLoaded === false, "InnerControl.isLoaded should become false after navigating back");

TKUnit.assert(label._isAddedToNativeVisualTree === false, "InnerControl._isAddedToNativeVisualTree should become false after navigating back");

}

export var test_ChangePageCaching_AfterNavigated_Throws = function () {

var testPage: PageModule.Page;

var pageFactory = function () {

var testPage = new PageModule.Page();

testPage.id = "testPage_test_ChangePageCaching_AfterNavigated_Throws";

testPage.content = new LabelModule.Label();

return testPage;

};

var androidFrame = frame.topmost().android;

var cachingBefore = androidFrame.cachePagesOnNavigate;

helper.navigateWithHistory(pageFactory);

try {

TKUnit.assertThrows(() => {

// Set caching to different value.

androidFrame.cachePagesOnNavigate = !cachingBefore;

},

"Changing cachePagesOnNavigate value after navigations should throw error.",

"Cannot set cachePagesOnNavigate if there are items in the back stack."

);

}

finally {

androidFrame.cachePagesOnNavigate = cachingBefore;

}

}

export var test_SetPageCaching_ToTheSameValue_AfterNavigated_DoesNotThrow = function () {

var testPage: PageModule.Page;

var pageFactory = function () {

var testPage = new PageModule.Page();

testPage.id = "testPage_test_SetPageCaching_ToTheSameValue_AfterNavigated_DoesNotThrow";

testPage.content = new LabelModule.Label();

return testPage;

};

var androidFrame = frame.topmost().android;

var cachingBefore = androidFrame.cachePagesOnNavigate;

helper.navigate(pageFactory);

try {

// Set caching to same value.

androidFrame.cachePagesOnNavigate = cachingBefore;

}

finally {

androidFrame.cachePagesOnNavigate = cachingBefore;

}

}

export var test_ChangePageCaching_BeforeNavigated_DoesNotThrow = function () {

var androidFrame = frame.topmost().android;

var cachingBefore = androidFrame.cachePagesOnNavigate;

try {

androidFrame.cachePagesOnNavigate = !cachingBefore;

}

catch (e) {

TKUnit.assert(false, "Changing cachePagesOnNavigate before navigation should not throw.");

}

finally {

androidFrame.cachePagesOnNavigate = cachingBefore;

}

}

export var test_Resolve_Fragment_ForPage = function () {

var testPage: PageModule.Page;

var navigatedTo = false;

var pageFactory = function () {

testPage = new PageModule.Page();

testPage.content = new LabelModule.Label();

// use navigatedTo to ensure the fragment is already created

testPage.on("navigatedTo", function(args) {

navigatedTo = true;

});

return testPage;

};

helper.navigate(pageFactory);

TKUnit.waitUntilReady(() => navigatedTo === true);

var fragment = frame.topmost().android.fragmentForPage(testPage);

TKUnit.assertFalse(types.isNullOrUndefined(fragment), "Failed to resolve native fragment for page");

}