import { Chain, Cursors, Guard, NamedChain } from '@ephox/agar';
import { UnitTest } from '@ephox/bedrock-client';
import { Optional, Result } from '@ephox/katamari';
import { Css, DomEvent, SelectorFind, SugarElement, WindowSelection } from '@ephox/sugar';
import * as Boxes from 'ephox/alloy/alien/Boxes';
import * as GuiFactory from 'ephox/alloy/api/component/GuiFactory';
import * as GuiSetup from 'ephox/alloy/api/testhelpers/GuiSetup';
import { Container } from 'ephox/alloy/api/ui/Container';
import * as ChainUtils from 'ephox/alloy/test/ChainUtils';
import * as PositionTestUtils from 'ephox/alloy/test/PositionTestUtils';
import * as Sinks from 'ephox/alloy/test/Sinks';
import * as Frames from '../../../../demo/ts/ephox/alloy/demo/frames/Frames';
UnitTest.asynctest('SelectionInFramePositionTest', (success, failure) => {
    const frame = SugarElement.fromTag('iframe');
    GuiSetup.setup((_store, _doc, _body) => {
        let content = '';
        for (let i = 0; i < 20; i++) {
            content += '<p id=p' + i + '>paragraph ' + i + '</p>';
        }
        const onload = DomEvent.bind(frame, 'load', () => {
            onload.unbind();
            Frames.write(frame, '<html><body contenteditable="true">' + content + '</body></html>');
        });
        const classicEditor = GuiFactory.build(GuiFactory.external({
            uid: 'classic-editor',
            element: frame
        }));
        Css.set(classicEditor.element, 'margin-top', '300px');
        return GuiFactory.build(Container.sketch({
            components: [
                GuiFactory.premade(Sinks.fixedSink()),
                GuiFactory.premade(Sinks.relativeSink()),
                GuiFactory.premade(Sinks.popup()),
                GuiFactory.premade(classicEditor)
            ]
        }));
    }, (_doc, _body, gui, _component, _store) => {
        const cSetupAnchor = Chain.mapper((data) => {
            const node = data.classic.element.dom.contentWindow.document.querySelector('#p3');
            return {
                type: 'node',
                root: SugarElement.fromDom(data.classic.element.dom.contentWindow.document.body),
                node: Optional.some(SugarElement.fromDom(node))
            };
        });
        const cGetWin = Chain.mapper((frame) => frame.element.dom.contentWindow);
        const cSetPath = (rawPath) => {
            const path = Cursors.path(rawPath);
            return Chain.binder((win) => {
                const body = SugarElement.fromDom(win.document.body);
                const range = Cursors.calculate(body, path);
                WindowSelection.setExact(win, range.start, range.soffset, range.finish, range.foffset);
                return WindowSelection.getExact(win).fold(() => Result.error('Could not retrieve the set selection'), Result.value);
            });
        };
        return [
            Chain.asStep({}, [
                NamedChain.asChain([
                    ChainUtils.cFindUids(gui, {
                        fixed: 'fixed-sink',
                        relative: 'relative-sink',
                        popup: 'popup',
                        classic: 'classic-editor'
                    }),
                    NamedChain.direct('classic', cGetWin, 'iWin'),
                    // Wait until the content has loaded
                    ChainUtils.cLogging('Waiting for iframe to load content.', [
                        Chain.control(Chain.binder((data) => {
                            const root = SugarElement.fromDom(data.classic.element.dom.contentWindow.document.body);
                            return SelectorFind.descendant(root, 'p').fold(() => Result.error('Could not find paragraph yet'), (_p) => Result.value(data));
                        }), Guard.tryUntil('Waiting for content to load in iframe', 10, 10000))
                    ]),
                    ChainUtils.cLogging('Selecting 3rd paragraph', [
                        NamedChain.direct('iWin', cSetPath({
                            startPath: [2, 0],
                            soffset: 0,
                            finishPath: [3, 0],
                            foffset: 0
                        }), 'range'),
                        NamedChain.write('anchor', cSetupAnchor)
                    ]),
                    PositionTestUtils.cTestSinkWithinBounds('Relative, Selected: 3rd paragraph, no page scroll, no editor scroll, positioned within frame', 'relative', () => Boxes.box(frame)),
                    PositionTestUtils.cTestSinkWithinBounds('Fixed, Selected: 3rd paragraph, no page scroll, no editor scroll, positioned within frame', 'fixed', () => Boxes.box(frame)),
                    PositionTestUtils.cScrollDown('classic', '2000px'),
                    PositionTestUtils.cTestSinkWithinBounds('Relative, Selected: 3rd paragraph, 2000px scroll, no editor scroll, positioned within frame', 'relative', () => Boxes.box(frame)),
                    PositionTestUtils.cTestSinkWithinBounds('Fixed, Selected: 3rd paragraph, 2000px scroll, no editor scroll, positioned within frame', 'fixed', () => Boxes.box(frame))
                ])
            ])
        ];
    }, success, failure);
});
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