Convert DialogButtons to TS

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/components/views/elements/DialogButtons.tsx

@@ -0,0 +1,115 @@
+/*
+Copyright 2017 Aidan Gauland
+Copyright 2018 New Vector Ltd.
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from "react";
+import { _t } from '../../../languageHandler';
+import { replaceableComponent } from "../../../utils/replaceableComponent";
+
+interface IProps {
+    // The primary button which is styled differently and has default focus.
+    primaryButton: React.ReactNode;
+
+    // A node to insert into the cancel button instead of default "Cancel"
+    cancelButton?: React.ReactNode;
+
+    // If true, make the primary button a form submit button (input type="submit")
+    primaryIsSubmit?: boolean;
+
+    // onClick handler for the primary button.
+    onPrimaryButtonClick?: (ev: React.MouseEvent) => void;
+
+    // should there be a cancel button? default: true
+    hasCancel?: boolean;
+
+    // The class of the cancel button, only used if a cancel button is
+    // enabled
+    cancelButtonClass?: string;
+
+    // onClick handler for the cancel button.
+    onCancel?: (...args: any[]) => void;
+
+    focus?: boolean;
+
+    // disables the primary and cancel buttons
+    disabled?: boolean;
+
+    // disables only the primary button
+    primaryDisabled?: boolean;
+
+    // something to stick next to the buttons, optionally
+    additive?: React.ReactNode;
+
+    primaryButtonClass?: string;
+}
+
+/**
+ * Basic container for buttons in modal dialogs.
+ */
+@replaceableComponent("views.elements.DialogButtons")
+export default class DialogButtons extends React.Component<IProps> {
+    public static defaultProps: Partial<IProps> = {
+        hasCancel: true,
+        disabled: false,
+    };
+
+    private onCancelClick = (event: React.MouseEvent): void => {
+        this.props.onCancel(event);
+    };
+
+    public render(): JSX.Element {
+        let primaryButtonClassName = "mx_Dialog_primary";
+        if (this.props.primaryButtonClass) {
+            primaryButtonClassName += " " + this.props.primaryButtonClass;
+        }
+        let cancelButton;
+
+        if (this.props.cancelButton || this.props.hasCancel) {
+            cancelButton = <button
+                // important: the default type is 'submit' and this button comes before the
+                // primary in the DOM so will get form submissions unless we make it not a submit.
+                type="button"
+                onClick={this.onCancelClick}
+                className={this.props.cancelButtonClass}
+                disabled={this.props.disabled}
+            >
+                { this.props.cancelButton || _t("Cancel") }
+            </button>;
+        }
+
+        let additive = null;
+        if (this.props.additive) {
+            additive = <div className="mx_Dialog_buttons_additive">{ this.props.additive }</div>;
+        }
+
+        return (
+            <div className="mx_Dialog_buttons">
+                { additive }
+                { cancelButton }
+                { this.props.children }
+                <button type={this.props.primaryIsSubmit ? 'submit' : 'button'}
+                    className={primaryButtonClassName}
+                    onClick={this.props.onPrimaryButtonClick}
+                    autoFocus={this.props.focus}
+                    disabled={this.props.disabled || this.props.primaryDisabled}
+                >
+                    { this.props.primaryButton }
+                </button>
+            </div>
+        );
+    }
+}