Method resolve

www/js/_hyperscript.js:8866–8946

(context, { from, to, using, over })

      return new _TransitionCommand(propExprs, from, to, usingExpr, over);
    }
    resolve(context, { from, to, using, over }) {
      var cmd = this;
      var runtime2 = context.meta.runtime;
      var target;
      if (this.propExprs[0].root) {
        target = this.propExprs[0].root.evaluate(context);
        runtime2.nullCheck(target, this.propExprs[0].root);
      } else {
        target = context.me;
      }
      var promises = [];
      runtime2.implicitLoop(target, function(target2) {
        promises.push(new Promise(function(resolve) {
          var initialTransition = target2.style.transition;
          if (over) {
            target2.style.transition = "all " + over + "ms ease-in";
          } else if (using) {
            target2.style.transition = using;
          } else {
            target2.style.transition = config.defaultTransition;
          }
          var internalData = runtime2.getInternalData(target2);
          if (!internalData.transitionInitials) internalData.transitionInitials = {};
          var initialValues = internalData.transitionInitials;
          for (var j = 0; j < cmd.propExprs.length; j++) {
            if (!(j in initialValues)) {
              initialValues[j] = cmd.propExprs[j].evaluate(context);
            }
          }
          for (var j = 0; j < cmd.propExprs.length; j++) {
            if (from[j] != null) {
              var lhs = {};
              for (var key in cmd.propExprs[j].lhs) {
                var e = cmd.propExprs[j].lhs[key];
                lhs[key] = e && e.evaluate ? e.evaluate(context) : e;
              }
              cmd.propExprs[j].set(context, lhs, from[j]);
            }
          }
          var transitionStarted = false;
          var resolved = false;
          target2.addEventListener("transitionend", function() {
            if (!resolved) {
              target2.style.transition = initialTransition;
              resolved = true;
              resolve();
            }
          }, { once: true });
          target2.addEventListener("transitionstart", function() {
            transitionStarted = true;
          }, { once: true });
          setTimeout(function() {
            if (!resolved && !transitionStarted) {
              target2.style.transition = initialTransition;
              resolved = true;
              resolve();
            }
          }, 100);