问跨浏览器多行文本溢出，在固定的宽度和高度内附加省略号

EN

var processTexts = function processTexts($dom) {
    var canvas = processTexts .canvas || (processTexts .canvas = document.createElement("canvas"));

    $dom.find('.block-with-ellipsis').each(function (idx, ctrl) {
        var currentLineAdded = false;
        var $this = $(ctrl);

        var font = $this.css('font-family').split(",")[0]; //This worked for me so far, but it is not always so easy.
        var fontWeight = $(this).css('font-weight');
        var fontSize = $(this).css('font-size');
        var fullFont = fontWeight + " " + fontSize + " " + font;
        // re-use canvas object for better performance
        var context = canvas.getContext("2d");
        context.font = fullFont;

        var widthOfContainer = $this.width();
        var text = $.trim(ctrl.innerHTML);
        var words = text.split(" ");
        var lines = [];
        //Number of lines to span over, this could be calculated/obtained some other way.
        var lineCount = $this.data('line-count');

        var currentLine = words[0];
        var processing = "";

        var isProcessing = true;
        var metrics = context.measureText(text);
        var processingWidth = metrics.width;
        if (processingWidth > widthOfContainer) {
            for (var i = 1; i < words.length && isProcessing; i++) {
                currentLineAdded = false;
                processing = currentLine + " " + words[i];
                metrics = context.measureText(processing);
                processingWidth = metrics.width;
                if (processingWidth <= widthOfContainer) {
                    currentLine = processing;
                } else {
                    if (lines.length < lineCount - 1) {
                        lines.push(currentLine);
                        currentLine = words[i];
                        currentLineAdded = true;
                    } else {
                        processing = currentLine + "...";
                        metrics = context.measureText(processing);
                        processingWidth = metrics.width;
                        if (processingWidth <= widthOfContainer) {
                            currentLine = processing;
                        } else {
                            currentLine = currentLine.slice(0, -3) + "...";
                        }
                        lines.push(currentLine);
                        isProcessing = false;
                        currentLineAdded = true;
                    }
                }
            }
            if (!currentLineAdded)
                lines.push(currentLine);
            ctrl.innerHTML = lines.join(" ");
        }
    });
};

(function () {
    $(document).ready(function () {
        processTexts($(document));
    });
})();

<div class="block-with-ellipsis" data-line-count="2">
    VERY LONG TEXT THAT I WANT TO BREAK IN LINES. VERY LONG TEXT THAT I WANT TO BREAK IN LINES.
</div>