var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
define(["require", "exports", "react", "../../common/BaseComponent", "../../utilities/autobind", "./DocumentCardTitle.scss"], function (require, exports, React, BaseComponent_1, autobind_1) {
    "use strict";
    var TRUNCATION_SEPARATOR = '&hellip;';
    var TRUNCATION_MINIMUM_LENGTH = 40; // This is the length we know can fit into the min width of DocumentCard.
    var TRUNCATION_MAXIMUM_LENGTH = 90 - TRUNCATION_SEPARATOR.length;
    var TRUNCATION_FIRST_PIECE_LONGER_BY = 10;
    var TRUNCATION_VERTICAL_OVERFLOW_THRESHOLD = 5;
    var DocumentCardTitle = (function (_super) {
        __extends(DocumentCardTitle, _super);
        function DocumentCardTitle(props) {
            var _this = _super.call(this, props) || this;
            _this.state = {
                truncatedTitleFirstPiece: '',
                truncatedTitleSecondPiece: ''
            };
            return _this;
        }
        DocumentCardTitle.prototype.componentDidMount = function () {
            var _a = this.props, title = _a.title, shouldTruncate = _a.shouldTruncate;
            if (shouldTruncate && title && title.length > TRUNCATION_MINIMUM_LENGTH) {
                if (this._doesTitleOverflow()) {
                    this._startTruncation(this.props);
                }
                this._events.on(window, 'resize', this._updateTruncation);
            }
        };
        DocumentCardTitle.prototype.componentWillReceiveProps = function (newProps) {
            this._events.off(window, 'resize');
            this._isTruncated = false;
            if (newProps.shouldTruncate && newProps.title && newProps.title.length > TRUNCATION_MINIMUM_LENGTH) {
                this._startTruncation(newProps);
                this._events.on(window, 'resize', this._updateTruncation);
            }
        };
        DocumentCardTitle.prototype.componentDidUpdate = function () {
            // If we're truncating, make sure the title fits
            if (this.props.shouldTruncate) {
                this._shrinkTitle();
            }
        };
        DocumentCardTitle.prototype.render = function () {
            var _a = this.props, title = _a.title, shouldTruncate = _a.shouldTruncate;
            var _b = this.state, truncatedTitleFirstPiece = _b.truncatedTitleFirstPiece, truncatedTitleSecondPiece = _b.truncatedTitleSecondPiece;
            var documentCardTitle;
            if (shouldTruncate && this._isTruncated) {
                documentCardTitle = (React.createElement("div", { className: 'ms-DocumentCardTitle', ref: this._resolveRef('_titleElement'), title: title },
                    truncatedTitleFirstPiece,
                    "\u2026",
                    truncatedTitleSecondPiece));
            }
            else {
                documentCardTitle = (React.createElement("div", { className: 'ms-DocumentCardTitle', ref: this._resolveRef('_titleElement'), title: title }, title));
            }
            return documentCardTitle;
        };
        DocumentCardTitle.prototype._startTruncation = function (props) {
            var originalTitle = props.title;
            this._isTruncated = false;
            // If the title is really short, there's no need to truncate it
            if (originalTitle && originalTitle.length >= TRUNCATION_MINIMUM_LENGTH) {
                // Break the text into two pieces for assembly later
                if (originalTitle.length > TRUNCATION_MAXIMUM_LENGTH) {
                    // The text is really long, so we can take a chunk out of the middle so the two pieces combine for the maximum length
                    this._isTruncated = true;
                    this.setState({
                        truncatedTitleFirstPiece: originalTitle.slice(0, TRUNCATION_MAXIMUM_LENGTH / 2 + TRUNCATION_FIRST_PIECE_LONGER_BY),
                        truncatedTitleSecondPiece: originalTitle.slice(originalTitle.length - (TRUNCATION_MAXIMUM_LENGTH / 2 - TRUNCATION_FIRST_PIECE_LONGER_BY))
                    });
                }
                else {
                    // The text is not so long, so we'll just break it into two pieces
                    this.setState({
                        truncatedTitleFirstPiece: originalTitle.slice(0, Math.ceil(originalTitle.length / 2) + TRUNCATION_FIRST_PIECE_LONGER_BY),
                        truncatedTitleSecondPiece: originalTitle.slice(originalTitle.length - Math.floor(originalTitle.length / 2) + TRUNCATION_FIRST_PIECE_LONGER_BY)
                    });
                }
            }
            // Save the width we just started truncation at, so that later we will only update truncation if necessary
            this._truncatedTitleAtWidth = this._titleElement.clientWidth;
        };
        DocumentCardTitle.prototype._shrinkTitle = function () {
            if (this._doesTitleOverflow()) {
                var _a = this.state, truncatedTitleFirstPiece = _a.truncatedTitleFirstPiece, truncatedTitleSecondPiece = _a.truncatedTitleSecondPiece;
                this._isTruncated = true;
                if (!truncatedTitleFirstPiece && !truncatedTitleSecondPiece) {
                    this._startTruncation(this.props);
                }
                this.setState({
                    truncatedTitleFirstPiece: truncatedTitleFirstPiece.slice(0, truncatedTitleFirstPiece.length - 1),
                    truncatedTitleSecondPiece: truncatedTitleSecondPiece.slice(1)
                });
            }
        };
        DocumentCardTitle.prototype._doesTitleOverflow = function () {
            var titleElement = this._titleElement;
            return titleElement.scrollHeight > titleElement.clientHeight + TRUNCATION_VERTICAL_OVERFLOW_THRESHOLD || titleElement.scrollWidth > titleElement.clientWidth;
        };
        DocumentCardTitle.prototype._updateTruncation = function () {
            // Only update truncation if the title's size has changed since the last time we truncated
            if (this._titleElement.clientWidth !== this._truncatedTitleAtWidth) {
                // Throttle truncation so that it doesn't happen during a window resize
                clearTimeout(this._scrollTimerId);
                this._scrollTimerId = this._async.setTimeout(this._startTruncation.bind(this, this.props), 250);
            }
        };
        return DocumentCardTitle;
    }(BaseComponent_1.BaseComponent));
    __decorate([
        autobind_1.autobind
    ], DocumentCardTitle.prototype, "_startTruncation", null);
    exports.DocumentCardTitle = DocumentCardTitle;
});

//# sourceMappingURL=DocumentCardTitle.js.map
