# all files / src/js/base/module/ VideoDialog.js

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     import $ from 'jquery';
    import env from '../core/env';
    import key from '../core/key';

    export default class VideoDialog {
      constructor(context) {
        this.context = context;

        this.ui = $.summernote.ui;
        this.$body = $(document.body);
        this.$editor = context.layoutInfo.editor;
        this.options = context.options;
        this.lang = this.options.langInfo;
      }

      initialize() {
        const $container = this.options.dialogsInBody ? this.$body : this.$editor;

        const body = [
          '<div class="form-group note-form-group row-fluid">',
          `<label class="note-form-label">${this.lang.video.url} <small class="text-muted">${this.lang.video.providers}</small></label>`,
          '<input class="note-video-url form-control note-form-control note-input" type="text" />',
          '</div>'
        ].join('');
        const buttonClass = 'btn btn-primary note-btn note-btn-primary note-video-btn';
        const footer = `<input type="button" href="#" class="${buttonClass}" value="${this.lang.video.insert}" disabled>`;

        this.$dialog = this.ui.dialog({
          title: this.lang.video.insert,
          fade: this.options.dialogsFade,
          body: body,
          footer: footer
        }).render().appendTo($container);
      }

      destroy() {
        this.ui.hideDialog(this.$dialog);
        this.$dialog.remove();
      }

      bindEnterKey($input, $btn) {
        $input.on('keypress', (event) => {
          if (event.keyCode === key.code.ENTER) {
            event.preventDefault();
            $btn.trigger('click');
          }
        });
      }

      createVideoNode(url) {
        // video url patterns(youtube, instagram, vimeo, dailymotion, youku, mp4, ogg, webm)
        const ytRegExp = /\/\/(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))([\w|-]{11})(?:(?:[\?&]t=)(\S+))?$/;
        const ytRegExpForStart = /^(?:(\d+)h)?(?:(\d+)m)?(?:(\d+)s)?$/;
        const ytMatch = url.match(ytRegExp);

        const igRegExp = /(?:www\.|\/\/)instagram\.com\/p\/(.[a-zA-Z0-9_-]*)/;
        const igMatch = url.match(igRegExp);

        const vRegExp = /\/\/vine\.co\/v\/([a-zA-Z0-9]+)/;
        const vMatch = url.match(vRegExp);

        const vimRegExp = /\/\/(player\.)?vimeo\.com\/([a-z]*\/)*(\d+)[?]?.*/;
        const vimMatch = url.match(vimRegExp);

        const dmRegExp = /.+dailymotion.com\/(video|hub)\/([^_]+)[^#]*(#video=([^_&]+))?/;
        const dmMatch = url.match(dmRegExp);

        const youkuRegExp = /\/\/v\.youku\.com\/v_show\/id_(\w+)=*\.html/;
        const youkuMatch = url.match(youkuRegExp);

        const qqRegExp = /\/\/v\.qq\.com.*?vid=(.+)/;
        const qqMatch = url.match(qqRegExp);

        const qqRegExp2 = /\/\/v\.qq\.com\/x?\/?(page|cover).*?\/([^\/]+)\.html\??.*/;
        const qqMatch2 = url.match(qqRegExp2);

        const mp4RegExp = /^.+.(mp4|m4v)$/;
        const mp4Match = url.match(mp4RegExp);

        const oggRegExp = /^.+.(ogg|ogv)$/;
        const oggMatch = url.match(oggRegExp);

        const webmRegExp = /^.+.(webm)$/;
        const webmMatch = url.match(webmRegExp);

        let $video;
        if (ytMatch && ytMatch[1].length === 11) {
          const youtubeId = ytMatch[1];
          var start = 0;
          if (typeof ytMatch[2] !== 'undefined') {
            const ytMatchForStart = ytMatch[2].match(ytRegExpForStart);
            Eif (ytMatchForStart) {
              for (var n = [3600, 60, 1], i = 0, r = n.length; i < r; i++) {
                start += (typeof ytMatchForStart[i + 1] !== 'undefined' ? n[i] * parseInt(ytMatchForStart[i + 1], 10) : 0);
              }
            }
          }
          $video = $('<iframe>')
            .attr('frameborder', 0)
            .attr('src', '//www.youtube.com/embed/' + youtubeId + (start > 0 ? '?start=' + start : ''))
            .attr('width', '640').attr('height', '360');
        } else if (igMatch && igMatch[0].length) {
          $video = $('<iframe>')
            .attr('frameborder', 0)
            .attr('src', 'https://instagram.com/p/' + igMatch[1] + '/embed/')
            .attr('width', '612').attr('height', '710')
            .attr('scrolling', 'no')
            .attr('allowtransparency', 'true');
        } else Iif (vMatch && vMatch[0].length) {
          $video = $('<iframe>')
            .attr('frameborder', 0)
            .attr('src', vMatch[0] + '/embed/simple')
            .attr('width', '600').attr('height', '600')
            .attr('class', 'vine-embed');
        } else Iif (vimMatch && vimMatch[3].length) {
          $video = $('<iframe webkitallowfullscreen mozallowfullscreen allowfullscreen>')
            .attr('frameborder', 0)
            .attr('src', '//player.vimeo.com/video/' + vimMatch[3])
            .attr('width', '640').attr('height', '360');
        } else Iif (dmMatch && dmMatch[2].length) {
          $video = $('<iframe>')
            .attr('frameborder', 0)
            .attr('src', '//www.dailymotion.com/embed/video/' + dmMatch[2])
            .attr('width', '640').attr('height', '360');
        } else Iif (youkuMatch && youkuMatch[1].length) {
          $video = $('<iframe webkitallowfullscreen mozallowfullscreen allowfullscreen>')
            .attr('frameborder', 0)
            .attr('height', '498')
            .attr('width', '510')
            .attr('src', '//player.youku.com/embed/' + youkuMatch[1]);
        } else if ((qqMatch && qqMatch[1].length) || (qqMatch2 && qqMatch2[2].length)) {
          const vid = ((qqMatch && qqMatch[1].length) ? qqMatch[1] : qqMatch2[2]);
          $video = $('<iframe webkitallowfullscreen mozallowfullscreen allowfullscreen>')
            .attr('frameborder', 0)
            .attr('height', '310')
            .attr('width', '500')
            .attr('src', 'http://v.qq.com/iframe/player.html?vid=' + vid + '&amp;auto=0');
        } else Iif (mp4Match || oggMatch || webmMatch) {
          $video = $('<video controls>')
            .attr('src', url)
            .attr('width', '640').attr('height', '360');
        } else {
          // this is not a known video link. Now what, Cat? Now what?
          return false;
        }

        $video.addClass('note-video-clip');

        return $video[0];
      }

      show() {
        const text = this.context.invoke('editor.getSelectedText');
        this.context.invoke('editor.saveRange');
        this.showVideoDialog(text).then((url) => {
          // [workaround] hide dialog before restore range for IE range focus
          this.ui.hideDialog(this.$dialog);
          this.context.invoke('editor.restoreRange');

          // build node
          const $node = this.createVideoNode(url);

          if ($node) {
            // insert video node
            this.context.invoke('editor.insertNode', $node);
          }
        }).fail(() => {
          this.context.invoke('editor.restoreRange');
        });
      }

      /**
       * show image dialog
       *
       * @param {jQuery} $dialog
       * @return {Promise}
       */
      showVideoDialog(text) {
        return $.Deferred((deferred) => {
          const $videoUrl = this.$dialog.find('.note-video-url');
          const $videoBtn = this.$dialog.find('.note-video-btn');

          this.ui.onDialogShown(this.$dialog, () => {
            this.context.triggerEvent('dialog.shown');

            $videoUrl.val(text).on('input', () => {
              this.ui.toggleBtn($videoBtn, $videoUrl.val());
            });

            if (!env.isSupportTouch) {
              $videoUrl.trigger('focus');
            }

            $videoBtn.click((event) => {
              event.preventDefault();

              deferred.resolve($videoUrl.val());
            });

            this.bindEnterKey($videoUrl, $videoBtn);
          });

          this.ui.onDialogHidden(this.$dialog, () => {
            $videoUrl.off('input');
            $videoBtn.off('click');

            if (deferred.state() === 'pending') {
              deferred.reject();
            }
          });

          this.ui.showDialog(this.$dialog);
        });
      }
    }