NativeScript/tests/app/ui/styling/value-source-tests.ts

import color = require("color");
import button = require("ui/button");
import stack = require("ui/layouts/stack-layout");
import helper = require("../helper");
import TKUnit = require("../../TKUnit");

export var test_value_Inherited_stronger_than_Default = function () {
    let page = helper.getCurrentPage();
    let btn = new button.Button();
    let testStack = new stack.StackLayout();
    page.content = testStack;
    testStack.addChild(btn);
    page.css = "stackLayout { color: red; }";
    helper.assertViewColor(btn, "#FF0000");
    page.css = "";
}

export var test_value_Css_stronger_than_Inherited = function () {
    let page = helper.getCurrentPage();
    let testStack = new stack.StackLayout();
    page.content = testStack;

    let btn = new button.Button();
    testStack.addChild(btn);
    page.css = "stackLayout { color: red; } button { color: blue; }";

    helper.assertViewColor(btn, "#0000FF");
}

export function test_value_Local_stronger_than_Css() {
    let testPage = helper.getCurrentPage();
    let testStack = new stack.StackLayout();
    testPage.content = testStack;

    let btn = new button.Button();
    testStack.addChild(btn);
    testPage.css = "button { color: red; }";

    helper.assertViewColor(btn, "#FF0000");
    btn.style.color = new color.Color("#0000FF");
    helper.assertViewColor(btn, "#0000FF");
    btn.style.color = undefined;
    TKUnit.assertEqual(btn.style.color, undefined, "style.color should be undefined when set locally.");
}

export var test_value_VisualState_stronger_than_Local = function () {
    let testPage = helper.getCurrentPage();

    let testStack = new stack.StackLayout();
    testPage.content = testStack;

    let btn = new button.Button();
    btn.style.color = new color.Color("#FF0000");
    testStack.addChild(btn);
    testPage.css = "button:pressed { color: #0000FF; }";

    helper.assertViewColor(btn, "#FF0000");
    btn._goToVisualState("pressed");
    helper.assertViewColor(btn, "#0000FF");
    btn._goToVisualState("normal");
    helper.assertViewColor(btn, "#FF0000");
}