Question

我正在使用此代码在点击中显示文本的翻译作为点击工具提示：

$(document).ready(function () {
    $('.word').tooltipster({
        trigger: 'click',
        touchDevices: true,
        content: 'Loading...',
        functionBefore: function (origin, continueTooltip) {

        continueTooltip();

        if (origin.data('ajax') !== 'cached') {
            $.ajax({
            type: 'GET',
            url: 'translate.php?word=' + $(this).text(),
            success: function (data) {
                origin.tooltipster('content', data).data('ajax', 'cached');
            }
            });
        }
        }
    });
    });

我还希望在选择文本时显示（触发）工具提示，并将所选文本作为url参数发送，如下所示：translate.php?word={selected text}。这需要工作，即使文本是单独的跨度，跨度的部分文本，而不是跨度等;基本上是页面上选择的任何文字。

我找到了下面的代码（jsfiddle），但我无法弄清楚如何将其整合到我已有的代码中：

$('div').mouseup(function() {
    alert(getSelectedText());
});

function getSelectedText() {
    if (window.getSelection) {
        return window.getSelection().toString();
    } else if (document.selection) {
        return document.selection.createRange().text;
    }
    return '';
}

以下是我的html的样子：

    <div class="container">
15, 16. (<span class="word">a</span>) 
<span class="word">Paano</span> 
<span class="word">napaibig</span> 
<span class="word">ni</span> 
<span class="word">Esther</span> 
<span class="word">ang</span> 
<span class="word">hari</span>? (
<span class="word">b</span>) 
<span class="word">Bakit</span> 
<span class="word">maaaring</span> 
<span class="word">naging</span> 
<span class="word">hamon</span> 
<span class="word">kay</span> 
<span class="word">Esther</span> 
<span class="word">ang</span> 
<span class="word">mga</span> 
<span class="word">pagbabago</span> 
<span class="word">sa</span> 
<span class="word">buhay</span> 
<span class="word">niya</span>?<br>
15 
<span class="word">Nang</span> 
<span class="word">panahon</span> 
<span class="word">na</span> 
<span class="word">para</span> 
<span class="word">iharap</span> 
<span class="word">si</span> 
<span class="word">Esther</span> 
<span class="word">sa</span> 
<span class="word">hari</span>
...

Answer 1

在我看来，使用如此庞大的图书馆来获取你想要做的事情并不是一个好主意，而你可以轻松地在没有插件的情况下做到这一点，而你正在尝试做的事情似乎也是不可能通过插件导致您的操作既不是插件支持的click也不是hover。

这是一个没有插件 DEMO

的演示

var cache = []; //defining the cache

$('.word').mouseup(function(e) {
    var selectedText = getSelectedText();
    if (selectedText.length > 0) { //if any text was selected

        //position and show the tooltip
        $('.tooltip').css({
            left: e.pageX,
            top: e.pageY
        }).addClass('show').text('loading...');

        if (checkCache(cache, selectedText) === '') { //check the cache for the translation

            //for the sake of the demo we'll simulate the ajax call, remove this part in your actual code
            setTimeout(function() {
                cache.push({
                    value: selectedText,
                    translation: 'translation of ' + selectedText
                });
                $('.tooltip').text('translation of ' + selectedText);
            }, Math.floor(Math.random() * (2000 - 300 + 1) + 300));
            return;
            //end of the simulation

            //if didn't find the translation call the ajax
            $.ajax({
                type: 'GET',
                url: 'translate.php?word=' + selectedText,
                success: function(data) {

                    //cache the translated text
                    cache.push({
                        value: selectedText,
                        translation: data
                    });

                    $('.tooltip').text(data); //show the translation
                }
            });
        } else {

            //if it was cached, load from the cache
            $('.tooltip').text(checkCache(cache, selectedText));
        }
    }
});

//close the tooltip if clicked somewhere on the page other than the text or the tooltip
$(document).on('click', function(e) {
    if ($('.word,.tooltip').is(e.target) || $('.word,.tooltip').has(e.target).length > 0) return false;
    $('.tooltip').removeClass('show');
});

//get the selected text
function getSelectedText() {
    if (window.getSelection) {
        return window.getSelection().toString();
    } else if (document.selection) {
        return document.selection.createRange().text;
    }
    return '';
}

//check the cache for translation
function checkCache(cache, value) {
    var translation = '';
    $.each(cache, function(i, obj) {
        if (obj.value == value) {
            translation = obj.translation;
            return false;
        }
    });
    return translation;
}

Answer 2

尝试从ajax调用中调用getSelectedText()。但是在mouseup上做。这将检查是否从您的函数返回任何选定的文本，然后进行ajax调用（如果有）。

$('div').mouseup(function() {
    var selectedText = getSelectedText();
    if(selectedText) {
        $.ajax({
            type: 'GET',
            url: 'translate.php?word=' + encodeURI(selectedText),
            success: function (data) {
                origin.tooltipster('content', data).data('ajax', 'cached');
            }
        });
    }
});

function getSelectedText() {
    if (window.getSelection) {
        return window.getSelection().toString();
    } else if (document.selection) {
        return document.selection.createRange().text;
    }
    return '';
}

如何让工具提示器在mouseup上触发并在ajax函数中使用所选文本？

2 个答案: