-let iFrame = null;
-
-let onInit, onSave;
-
-/**
- * Show the draw.io editor.
- * @param {String} drawioUrl
- * @param {Function} onInitCallback - Must return a promise with the xml to load for the editor.
- * @param {Function} onSaveCallback - Is called with the drawing data on save.
- */
-function show(drawioUrl, onInitCallback, onSaveCallback) {
- onInit = onInitCallback;
- onSave = onSaveCallback;
-
- iFrame = document.createElement('iframe');
- iFrame.setAttribute('frameborder', '0');
- window.addEventListener('message', drawReceive);
- iFrame.setAttribute('src', drawioUrl);
- iFrame.setAttribute('class', 'fullscreen');
- iFrame.style.backgroundColor = '#FFFFFF';
- document.body.appendChild(iFrame);
-}
+// Docs: https://www.diagrams.net/doc/faq/embed-mode
-function close() {
- drawEventClose();
-}
+let iFrame = null;
+let lastApprovedOrigin;
+let onInit; let
+ onSave;
-function drawReceive(event) {
- if (!event.data || event.data.length < 1) return;
- let message = JSON.parse(event.data);
- if (message.event === 'init') {
- drawEventInit();
- } else if (message.event === 'exit') {
- drawEventClose();
- } else if (message.event === 'save') {
- drawEventSave(message);
- } else if (message.event === 'export') {
- drawEventExport(message);
- }
+function drawPostMessage(data) {
+ iFrame.contentWindow.postMessage(JSON.stringify(data), lastApprovedOrigin);
}
function drawEventExport(message) {
}
function drawEventSave(message) {
- drawPostMessage({action: 'export', format: 'xmlpng', xml: message.xml, spin: 'Updating drawing'});
+ drawPostMessage({
+ action: 'export', format: 'xmlpng', xml: message.xml, spin: 'Updating drawing',
+ });
}
function drawEventInit() {
if (!onInit) return;
onInit().then(xml => {
- drawPostMessage({action: 'load', autosave: 1, xml: xml});
+ drawPostMessage({action: 'load', autosave: 1, xml});
});
}
+function drawEventConfigure() {
+ const config = {};
+ window.$events.emitPublic(iFrame, 'editor-drawio::configure', {config});
+ drawPostMessage({action: 'configure', config});
+}
+
function drawEventClose() {
+ // eslint-disable-next-line no-use-before-define
window.removeEventListener('message', drawReceive);
if (iFrame) document.body.removeChild(iFrame);
}
-function drawPostMessage(data) {
- iFrame.contentWindow.postMessage(JSON.stringify(data), '*');
+/**
+ * Receive and handle a message event from the draw.io window.
+ * @param {MessageEvent} event
+ */
+function drawReceive(event) {
+ if (!event.data || event.data.length < 1) return;
+ if (event.origin !== lastApprovedOrigin) return;
+
+ const message = JSON.parse(event.data);
+ if (message.event === 'init') {
+ drawEventInit();
+ } else if (message.event === 'exit') {
+ drawEventClose();
+ } else if (message.event === 'save') {
+ drawEventSave(message);
+ } else if (message.event === 'export') {
+ drawEventExport(message);
+ } else if (message.event === 'configure') {
+ drawEventConfigure();
+ }
+}
+
+/**
+ * Show the draw.io editor.
+ * @param {String} drawioUrl
+ * @param {Function} onInitCallback - Must return a promise with the xml to load for the editor.
+ * @param {Function} onSaveCallback - Is called with the drawing data on save.
+ */
+export function show(drawioUrl, onInitCallback, onSaveCallback) {
+ onInit = onInitCallback;
+ onSave = onSaveCallback;
+
+ iFrame = document.createElement('iframe');
+ iFrame.setAttribute('frameborder', '0');
+ window.addEventListener('message', drawReceive);
+ iFrame.setAttribute('src', drawioUrl);
+ iFrame.setAttribute('class', 'fullscreen');
+ iFrame.style.backgroundColor = '#FFFFFF';
+ document.body.appendChild(iFrame);
+ lastApprovedOrigin = (new URL(drawioUrl)).origin;
}
-async function upload(imageData, pageUploadedToId) {
- let data = {
+export async function upload(imageData, pageUploadedToId) {
+ const data = {
image: imageData,
uploaded_to: pageUploadedToId,
};
- const resp = await window.$http.post(window.baseUrl(`/images/drawio`), data);
+ const resp = await window.$http.post(window.baseUrl('/images/drawio'), data);
return resp.data;
}
+export function close() {
+ drawEventClose();
+}
+
/**
* Load an existing image, by fetching it as Base64 from the system.
* @param drawingId
* @returns {Promise<string>}
*/
-async function load(drawingId) {
- const resp = await window.$http.get(window.baseUrl(`/images/drawio/base64/${drawingId}`));
- return `data:image/png;base64,${resp.data.content}`;
+export async function load(drawingId) {
+ try {
+ const resp = await window.$http.get(window.baseUrl(`/images/drawio/base64/${drawingId}`));
+ return `data:image/png;base64,${resp.data.content}`;
+ } catch (error) {
+ if (error instanceof window.$http.HttpError) {
+ window.$events.showResponseError(error);
+ }
+ close();
+ throw error;
+ }
}
-
-export default {show, close, upload, load};
\ No newline at end of file