Prep modals for adding torrents by file

Abstract modals into different components
Adjust modal format

client/source/scripts/components/modals/ModalActions.js

@@ -0,0 +1,52 @@
+import classnames from 'classnames';
+import React from 'react';
+
+import UIActions from '../../actions/UIActions';
+
+export default class ModalActions extends React.Component {
+  getModalButtons(actions) {
+    let buttons = actions.map((action, index) => {
+      let classes = classnames('button', {
+        [action.supplementalClassName]: action.supplementalClassName,
+        'button--deemphasize': action.type === 'secondary',
+        'button--primary': action.type === 'primary'
+      });
+
+      return (
+        <button className={classes} onClick={this.getClickHandler(action)} key={index}>
+          {action.content}
+        </button>
+      );
+    });
+
+    return (
+      <div className="modal__button-group form__row">
+        {buttons}
+      </div>
+    );
+  }
+
+  getClickHandler(action) {
+    return () => {
+      if (action.clickHandler) {
+        action.clickHandler();
+      }
+
+      if (action.triggerDismiss) {
+        UIActions.dismissModal();
+      }
+    }
+  }
+
+  render() {
+    return (
+      <div className="modal__actions">
+        {this.getModalButtons(this.props.actions)}
+      </div>
+    );
+  }
+}
+
+ModalActions.defaultProps = {
+  alignment: 'left'
+};