Add a simple edit dialog for communities

src/components/views/dialogs/EditCommunityPrototypeDialog.tsx

@@ -0,0 +1,166 @@
+/*
+Copyright 2020 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, { ChangeEvent } from 'react';
+import BaseDialog from "./BaseDialog";
+import { _t } from "../../../languageHandler";
+import { IDialogProps } from "./IDialogProps";
+import Field from "../elements/Field";
+import AccessibleButton from "../elements/AccessibleButton";
+import { MatrixClientPeg } from "../../../MatrixClientPeg";
+import { CommunityPrototypeStore } from "../../../stores/CommunityPrototypeStore";
+import FlairStore from "../../../stores/FlairStore";
+
+interface IProps extends IDialogProps {
+    communityId: string;
+}
+
+interface IState {
+    name: string;
+    error: string;
+    busy: boolean;
+    currentAvatarUrl: string;
+    avatarFile: File;
+    avatarPreview: string;
+}
+
+// XXX: This is a lot of duplication from the create dialog, just in a different shape
+export default class EditCommunityPrototypeDialog extends React.PureComponent<IProps, IState> {
+    private avatarUploadRef: React.RefObject<HTMLInputElement> = React.createRef();
+
+    constructor(props: IProps) {
+        super(props);
+
+        const profile = CommunityPrototypeStore.instance.getCommunityProfile(props.communityId);
+
+        this.state = {
+            name: profile?.name || "",
+            error: null,
+            busy: false,
+            avatarFile: null,
+            avatarPreview: null,
+            currentAvatarUrl: profile?.avatarUrl,
+        };
+    }
+
+    private onNameChange = (ev: ChangeEvent<HTMLInputElement>) => {
+        this.setState({name: ev.target.value});
+    };
+
+    private onSubmit = async (ev) => {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        if (this.state.busy) return;
+
+        // We'll create the community now to see if it's taken, leaving it active in
+        // the background for the user to look at while they invite people.
+        this.setState({busy: true});
+        try {
+            let avatarUrl = this.state.currentAvatarUrl || ""; // must be a string for synapse to accept it
+            if (this.state.avatarFile) {
+                avatarUrl = await MatrixClientPeg.get().uploadContent(this.state.avatarFile);
+            }
+
+            await MatrixClientPeg.get().setGroupProfile(this.props.communityId, {
+                name: this.state.name,
+                avatar_url: avatarUrl,
+            });
+
+            // ask the flair store to update the profile too
+            await FlairStore.refreshGroupProfile(MatrixClientPeg.get(), this.props.communityId);
+
+            // we did it, so close the dialog
+            this.props.onFinished(true);
+        } catch (e) {
+            console.error(e);
+            this.setState({
+                busy: false,
+                error: _t("There was an error updating your community. The server is unable to process your request."),
+            });
+        }
+    };
+
+    private onAvatarChanged = (e: ChangeEvent<HTMLInputElement>) => {
+        if (!e.target.files || !e.target.files.length) {
+            this.setState({avatarFile: null});
+        } else {
+            this.setState({busy: true});
+            const file = e.target.files[0];
+            const reader = new FileReader();
+            reader.onload = (ev: ProgressEvent<FileReader>) => {
+                this.setState({avatarFile: file, busy: false, avatarPreview: ev.target.result as string});
+            };
+            reader.readAsDataURL(file);
+        }
+    };
+
+    private onChangeAvatar = () => {
+        if (this.avatarUploadRef.current) this.avatarUploadRef.current.click();
+    };
+
+    public render() {
+        let preview = <img src={this.state.avatarPreview} className="mx_EditCommunityPrototypeDialog_avatar" />;
+        if (!this.state.avatarPreview) {
+            if (this.state.currentAvatarUrl) {
+                const url = MatrixClientPeg.get().mxcUrlToHttp(this.state.currentAvatarUrl);
+                preview = <img src={url} className="mx_EditCommunityPrototypeDialog_avatar" />;
+            } else {
+                preview = <div className="mx_EditCommunityPrototypeDialog_placeholderAvatar" />
+            }
+        }
+
+        return (
+            <BaseDialog
+                className="mx_EditCommunityPrototypeDialog"
+                onFinished={this.props.onFinished}
+                title={_t("Update community")}
+            >
+                <form onSubmit={this.onSubmit}>
+                    <div className="mx_Dialog_content">
+                        <div className="mx_EditCommunityPrototypeDialog_rowName">
+                            <Field
+                                value={this.state.name}
+                                onChange={this.onNameChange}
+                                placeholder={_t("Enter name")}
+                                label={_t("Enter name")}
+                            />
+                        </div>
+                        <div className="mx_EditCommunityPrototypeDialog_rowAvatar">
+                            <input
+                                type="file" style={{display: "none"}}
+                                ref={this.avatarUploadRef} accept="image/*"
+                                onChange={this.onAvatarChanged}
+                            />
+                            <AccessibleButton onClick={this.onChangeAvatar} className="mx_EditCommunityPrototypeDialog_avatarContainer">
+                                {preview}
+                            </AccessibleButton>
+                            <div className="mx_EditCommunityPrototypeDialog_tip">
+                                <b>{_t("Add image (optional)")}</b>
+                                <span>
+                                    {_t("An image will help people identify your community.")}
+                                </span>
+                            </div>
+                        </div>
+                        <AccessibleButton kind="primary" onClick={this.onSubmit} disabled={this.state.busy}>
+                            {_t("Save")}
+                        </AccessibleButton>
+                    </div>
+                </form>
+            </BaseDialog>
+        );
+    }
+}