Не понимаю как это работает (или как должно работать)
the-teacher opened this issue · comments
- Имею область 300х300, заполненую шариками
- 15й шарик в 15 ряду помечен как шар для отслеживания (.detected)
#base_viewport{
height: 300px;
width: 300px;
overflow: scroll;
background: lightgray;
p{
word-spacing: 0;
white-space: nowrap;
}
span{
height: 30px;
width: 30px;
line-height: 10px;
border-radius: 30px;
display: inline-block;
text-align: center;
background: yellow;
margin-right: 10px;
padding: 10px;
font-size: 13px;
&.detected{
background: red;
}
}
}
<div id="base_viewport">
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
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</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
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</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
<p><span>1</span><span>2</span><span>3</span><span>4</span><span>5</span><span>6</span><span>7</span><span>8</span><span>9</span><span>10</span><span>11</span><span>12</span><span>13</span><span>14</span><span>15</span><span>16</span><span>17</span><span>18</span><span>19</span><span>20</span><span>21</span><span>22</span><span>23</span><span>24</span><span>25</span><span>26</span><span>27</span><span>28</span><span>29</span><span>30</span>
</p>
</div>
$('.detected').viewportTrack({
forceViewport: '#base_viewport',
tracker: function(state) {
console.clear();
console.log($('.detected:in-viewport'));
console.log($('.detected:above-the-viewport'));
console.log($('.detected:below-the-viewport'));
console.log($('.detected:left-of-viewport'));
console.log($('.detected:right-of-viewport'));
console.log($('.detected:partly-above-the-viewport'));
console.log($('.detected:partly-below-the-viewport'));
console.log($('.detected:partly-left-of-viewport'));
console.log($('.detected:partly-right-of-viewport'));
}
});
Событие исполняется много раз, но значения выводимые в консоль ниразу не меняются.
true дает только 3 и 5 селекторы. Всегда.
С нодой опыт работы 2й день - собрал только что бы сделать рабочий пример.
Если будет желание попробуй запустить - вероятно если следовать ридми - ты увидишь оригинал тесткейса
https://github.com/the-forks/jquery.viewport/tree/dev_examples/dev_dir
нюанс, селекторы, пока, не умеют жестко определять вьюпорт, эта функция доступна только для трекера, посему используй лучше
console.log( state );
В следующей версии добавлю этот конфиг и для селекторов, будет что-то а-ля
console.log( $('.detected:above-the-viewport( 0, #base_viewport )') );
Но state тоже не давал мне никакой ценной информации.
В общем я соберу статичный тест-кейс в ближ время и пришлю тебе на рассмотрение.
Это будет лучше всего, я щас просто в отъезде, не хочу ноду на планшете подымать
а у меня задача вообще отложена на месяц. Так что я тоже не тороплюсь, но другой работы по горло.
Как освобожусь - набросаю.