124 lines
3.7 KiB
JavaScript
124 lines
3.7 KiB
JavaScript
/*
|
|
Copyright 2020 Bruno Windels <bruno@windels.cloud>
|
|
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 {MessageTile} from "./MessageTile.js";
|
|
|
|
const MAX_HEIGHT = 300;
|
|
const MAX_WIDTH = 400;
|
|
|
|
export class ImageTile extends MessageTile {
|
|
constructor(options) {
|
|
super(options);
|
|
this._decryptedThumbail = null;
|
|
this._decryptedImage = null;
|
|
this._error = null;
|
|
this.load();
|
|
this._lightboxUrl = this.urlCreator.urlForSegments([
|
|
// ensure the right room is active if in grid view
|
|
this.navigation.segment("room", this._room.id),
|
|
this.navigation.segment("lightbox", this._entry.id)
|
|
]);
|
|
}
|
|
|
|
async _loadEncryptedFile(file) {
|
|
const blob = await this._mediaRepository.downloadEncryptedFile(file, true);
|
|
if (this.isDisposed) {
|
|
blob.dispose();
|
|
return;
|
|
}
|
|
return this.track(blob);
|
|
}
|
|
|
|
async load() {
|
|
try {
|
|
const thumbnailFile = this._getContent().info?.thumbnail_file;
|
|
const file = this._getContent().file;
|
|
if (thumbnailFile) {
|
|
this._decryptedThumbail = await this._loadEncryptedFile(thumbnailFile);
|
|
this.emitChange("thumbnailUrl");
|
|
} else if (file) {
|
|
this._decryptedImage = await this._loadEncryptedFile(file);
|
|
this.emitChange("thumbnailUrl");
|
|
}
|
|
} catch (err) {
|
|
this._error = err;
|
|
this.emitChange("error");
|
|
}
|
|
}
|
|
|
|
get lightboxUrl() {
|
|
return this._lightboxUrl;
|
|
}
|
|
|
|
get thumbnailUrl() {
|
|
if (this._decryptedThumbail) {
|
|
return this._decryptedThumbail.url;
|
|
} else if (this._decryptedImage) {
|
|
return this._decryptedImage.url;
|
|
}
|
|
const mxcUrl = this._getContent()?.url;
|
|
if (typeof mxcUrl === "string") {
|
|
return this._mediaRepository.mxcUrlThumbnail(mxcUrl, this.thumbnailWidth, this.thumbnailHeight, "scale");
|
|
}
|
|
return "";
|
|
}
|
|
|
|
async loadImageUrl() {
|
|
if (!this._decryptedImage) {
|
|
const file = this._getContent().file;
|
|
if (file) {
|
|
this._decryptedImage = await this._loadEncryptedFile(file);
|
|
}
|
|
}
|
|
return this._decryptedImage?.url || "";
|
|
}
|
|
|
|
_scaleFactor() {
|
|
const info = this._getContent()?.info;
|
|
const scaleHeightFactor = MAX_HEIGHT / info?.h;
|
|
const scaleWidthFactor = MAX_WIDTH / info?.w;
|
|
// take the smallest scale factor, to respect all constraints
|
|
// we should not upscale images, so limit scale factor to 1 upwards
|
|
return Math.min(scaleWidthFactor, scaleHeightFactor, 1);
|
|
}
|
|
|
|
get thumbnailWidth() {
|
|
const info = this._getContent()?.info;
|
|
return Math.round(info?.w * this._scaleFactor());
|
|
}
|
|
|
|
get thumbnailHeight() {
|
|
const info = this._getContent()?.info;
|
|
return Math.round(info?.h * this._scaleFactor());
|
|
}
|
|
|
|
get label() {
|
|
return this._getContent().body;
|
|
}
|
|
|
|
get error() {
|
|
if (this._error) {
|
|
return `Could not decrypt image: ${this._error.message}`;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
get shape() {
|
|
return "image";
|
|
}
|
|
}
|