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   http://www.apache.org/licenses/LICENSE-2.0

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<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <script src="lib/esl.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <script src="lib/testHelper.js"></script>
        <!-- <script src="ut/lib/canteen.js"></script> -->
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <style>
        </style>


        <div id="during-case-continue"></div>
        <div id="during-case-get-curr"></div>
        <div id="during-case-partial-change"></div>
        <div id="during-first-frame-correct"></div>
        <div id="during-ensure-once-in-each-frame"></div>


        <script>
        require(['echarts'], function (echarts) {

            function renderItem(params, api) {
                return {
                    type: 'circle',
                    shape: {
                        cx: api.value(0),
                        cy: api.value(1),
                        r: 40,
                        transition: 'cx'
                    },
                    style: {
                        fill: 'green',
                    },
                };
            }

            var baseX = 60;
            var baseY = 80

            var option = {
                series: [{
                    id: 'a',
                    type: 'custom',
                    coordinateSystem: 'none',
                    renderItem: renderItem,
                    animationDuration: 3000,
                    animationDurationUpdate: 3000,
                    data: [[baseX, baseY]]
                }]
            };


            var chart = testHelper.create(echarts, 'during-case-continue', {
                title: [
                    'Click "move" several times **before animation finished**',
                    'The cirle should keep move to right **without jump**'
                ],
                height: 200,
                option: option,
                buttons: [{
                    text: 'move',
                    onclick: function () {
                        chart.setOption({
                            series: {
                                id: 'a',
                                data: [[baseX += 60, baseY]]
                            }
                        });
                    }
                }]
            });
        });
        </script>


        <script>
        require(['echarts'], function (echarts) {

            function renderItem(params, api) {
                var renderNumberStart;
                return {
                    type: 'circle',
                    shape: {
                        cx: api.value(0),
                        cy: api.value(1),
                        r: 40
                    },
                    extra: {
                        renderNumber: ++renderNumber,
                        transition: 'renderNumber'
                    },
                    style: {
                        fill: 'green'
                    },
                    during: function (apiDuring) {
                        var currNum = apiDuring.getExtra('renderNumber');
                        !renderNumberStart && (renderNumberStart = currNum);
                        var opacity = (currNum - renderNumberStart) / (renderNumber - renderNumberStart);
                        isNaN(opacity) && (opacity = 1);
                        apiDuring.setStyle('opacity', opacity);
                    }
                };
            }

            var renderNumber = 1;
            var baseX = 60;
            var baseY = 100;

            var option = {
                series: [{
                    id: 'a',
                    type: 'custom',
                    coordinateSystem: 'none',
                    renderItem: renderItem,
                    animationDuration: 3000,
                    animationDurationUpdate: 1000,
                    data: [[baseX, baseY]]
                }]
            };

            var chart = testHelper.create(echarts, 'during-case-get-curr', {
                title: [
                    'Click next several times **before animation finished**',
                    'Each click, the circle **disappear immediately** and **fade in** at right a bit',
                    'MUST **not blink**'
                ],
                height: 200,
                option: option,
                buttons: [{
                    text: 'next',
                    onclick: function () {
                        chart.setOption({
                            series: {
                                id: 'a',
                                data: [[baseX += 40, baseY]]
                            }
                        });
                    }
                }]
            });
        });
        </script>


        <script>
        require(['echarts'], function (echarts) {

            var baseX = 100;
            var baseY = 100;

            function renderItem(params, api) {
                var textOpt = {
                    type: 'text',
                    extra: { },
                    transition: [], // disable the default transition of x y.
                    style: { x: 20, y: 20, fontSize: 20, stroke: 'green' },
                    during: function (apiDuring) {
                        var x = apiDuring.getExtra('x');
                        var y = apiDuring.getExtra('y');
                        apiDuring.setStyle('text', makeText(x, y));
                    }
                };
                var movingCircleOpt = {
                    type: 'circle',
                    shape: { cx: 0, cy: 0, r: 10 },
                    extra: { },
                    style: { fill: 'red' },
                    transition: [], // disable the default transition of x y.
                    during: function (apiDuring) {
                        var x = apiDuring.getExtra('x');
                        var y = apiDuring.getExtra('y');
                        apiDuring.setTransform('x', x).setTransform('y', y);
                    }
                };

                var cmd = api.value(0);
                if (cmd === 'init') {
                    textOpt.extra.x = baseX;
                    textOpt.extra.y = baseY;
                    textOpt.extra.transition = ['x', 'y'];
                    textOpt.style.text = makeText(baseX, baseY);
                    movingCircleOpt.x = baseX;
                    movingCircleOpt.y = baseY;
                    movingCircleOpt.extra.x = baseX;
                    movingCircleOpt.extra.y = baseY;
                    movingCircleOpt.extra.transition = ['x', 'y'];
                }
                else if (cmd === 'x') {
                    baseX += 100;
                    textOpt.extra.x = baseX;
                    textOpt.extra.transition = ['x'];
                    // textOpt.style.text = makeText(baseX, baseY);
                    movingCircleOpt.extra.x = baseX;
                    movingCircleOpt.extra.transition = ['x'];
                }
                else if (cmd === 'y') {
                    baseY += 100;
                    textOpt.extra.y = baseY;
                    textOpt.extra.transition = ['y'];
                    // textOpt.style.text = makeText(baseX, baseY);
                    movingCircleOpt.extra.y = baseY;
                    movingCircleOpt.extra.transition = ['y'];
                }

                return {
                    type: 'group',
                    children: [
                        textOpt,
                        movingCircleOpt,
                        {
                            // Standard circle: used to check the result of moving circle.
                            type: 'circle',
                            x: baseX,
                            y: baseY,
                            transition: [], // disable the default transition of x y.
                            shape: {cx: 0, cy: 0, r: 15},
                            style: {fill: '#aaa'},
                            z2: -1
                        }
                    ]
                };
            }

            function makeText(x, y) {
                return ['x: ' + x.toFixed(2), 'y: ' + y.toFixed(2)].join('\n');
            }

            var option = {
                series: [{
                    id: 'a',
                    type: 'custom',
                    coordinateSystem: 'none',
                    renderItem: renderItem,
                    animationDuration: 3000,
                    animationDurationUpdate: 5000,
                    data: [['init']]
                }]
            };


            var chart = testHelper.create(echarts, 'during-case-partial-change', {
                title: [
                    'Partial change props test:',
                    'Click "add x" and "add y" before animation finished.',
                    'The red circle animation should be smooth **without jump**.',
                    'The red circle should be finally **reach at the grey circle**.',
                    'The **text should be correct**.',
                ],
                height: 500,
                option: option,
                buttons: [{
                    text: 'add x 100',
                    onclick: function () {
                        chart.setOption({
                            series: {
                                id: 'a',
                                data: [['x']]
                            }
                        });
                    }
                }, {
                    text: 'add y 100',
                    onclick: function () {
                        chart.setOption({
                            series: {
                                id: 'a',
                                data: [['y']]
                            }
                        });
                    }
                }]
            });
        });
        </script>


        <script>
        require(['echarts'], function (echarts) {
            var resultPrinted = false;

            function renderItem(params, api) {
                return {
                    type: 'text',
                    extra: {
                        renderNumber: renderNumber,
                        transition: 'renderNumber'
                    },
                    style: {
                        x: 100,
                        y: 50,
                        fontSize: 30,
                        enterFrom: {
                            x: 10
                        }
                    },
                    during: function (apiDuring) {
                        var currNum = apiDuring.getExtra('renderNumber');
                        if (resultPrinted || currNum <= 2) {
                            return;
                        }
                        resultPrinted = true;
                        if (currNum === 3) {
                            apiDuring.setStyle('text', 'TEST FAIL');
                            apiDuring.setStyle('fill', 'red');
                        }
                        else {
                            apiDuring.setStyle('text', 'TEST PASS');
                            apiDuring.setStyle('fill', 'green');
                        }
                    }
                };
            }

            var renderNumber = 2;

            var option = {
                series: [{
                    id: 'a',
                    type: 'custom',
                    coordinateSystem: 'none',
                    renderItem: renderItem,
                    animationDuration: 10000,
                    animationDurationUpdate: 10000,
                    data: [[10]]
                }]
            };

            var chart = testHelper.create(echarts, 'during-first-frame-correct', {
                title: [
                    'Test the first during call should not get the target value:',
                    'Should print TEST PASS'
                ],
                option: option,
                height: 200
            });

            chart && setTimeout(function () {
                renderNumber = 3;
                chart.setOption({
                    series: {
                        id: 'a',
                        data: [[10]]
                    }
                });
                // Set option before init finished.
            }, 100);
        });
        </script>


        <script>
        require(['echarts'], function (echarts) {
            var resultPrinted = false;
            var currX = 0;
            var currFontSize = 16;

            function renderItem(params, api) {
                var cmd = api.value(0);

                var opt = {
                    type: 'text',
                    extra: {
                        renderNumber: renderNumber,
                        transition: 'renderNumber'
                    },
                    style: {
                        x: 100,
                        y: 50,
                        fontSize: currFontSize,
                        fill: 'green'
                    }
                };

                if (cmd !== 'noDuring') {
                    opt.during = function (apiDuring) {
                        duringCount++;
                        var currNum = apiDuring.getExtra('renderNumber');
                        apiDuring.setStyle(
                            'text',
                            'during count: ' + duringCount + '\n' + 'rAF count: ' + rAFCount
                        );
                    };
                }
                if (cmd === 'addX') {
                    currX += 50;
                    opt.x = currX;
                    opt.transition = 'x';
                }
                if (cmd === 'addFontSize') {
                    currFontSize += 8;
                    opt.style.fontSize = currFontSize;
                    opt.style.transition = 'fontSize';
                }

                return opt;
            }

            var renderNumber = 2;

            var option = {
                series: [{
                    id: 'a',
                    type: 'custom',
                    coordinateSystem: 'none',
                    renderItem: renderItem,
                    animationDuration: 3000,
                    animationDurationUpdate: 3000,
                    data: [[10]]
                }]
            };

            var chart = testHelper.create(echarts, 'during-ensure-once-in-each-frame', {
                title: [
                    'Test during only called once in each:',
                    'In **init** and after **click the buttons**,',
                    'during count and rAF count',
                    'should **be the same** (may be 1 different)'
                ],
                option: option,
                height: 200,
                button: [{
                    text: 'add x 50',
                    onclick: function () {
                        chart.setOption({ series: { id: 'a', data: [['addX']] } });
                        startCountFrame();
                    }
                }, {
                    text: 'add fontSize 8',
                    onclick: function () {
                        chart.setOption({ series: { id: 'a', data: [['addFontSize']] } });
                        startCountFrame();
                    }
                }]
            });

            var rAFCount = 0;
            var duringCount = 0;
            var rAFId;

            function startCountFrame() {
                stopCountFrame();
                rAFId = requestAnimationFrame(countFrame);

                function countFrame() {
                    rAFCount++;
                    rAFId = requestAnimationFrame(countFrame);
                }
            }

            function stopCountFrame() {
                if (rAFId != null) {
                    cancelAnimationFrame(rAFId);
                    rAFId = null;
                }
            }

            if (chart) {
                chart.on('finished', function () {
                    stopCountFrame();
                });

                startCountFrame();

                setTimeout(function () {
                    renderNumber = 3;
                    chart.setOption({ series: { id: 'a', data: [['init']] } });
                    // Set option before init finished.
                    startCountFrame();
                }, 100);
            }
        });
        </script>


    </body>
</html>