openOutpaint-webUI-extension/javascript/openoutpaint-ext.js

108 lines
2.6 KiB
JavaScript

// Txt2Img Send to Resource
const openoutpaint = {
frame: null,
key: null,
};
async function openoutpaint_get_image_from_gallery() {
return new Promise(function (resolve, reject) {
var buttons = gradioApp().querySelectorAll(
'[style="display: block;"].tabitem div[id$=_gallery] .gallery-item'
);
var button = gradioApp().querySelector(
'[style="display: block;"].tabitem div[id$=_gallery] .gallery-item.\\!ring-2'
);
if (!button) button = buttons[0];
if (!button)
reject(new Error("[openoutpaint] No image selected in the gallery"));
const canvas = document.createElement("canvas");
const image = document.createElement("img");
image.onload = () => {
canvas.width = image.width;
canvas.height = image.height;
canvas.getContext("2d").drawImage(image, 0, 0);
resolve(canvas.toDataURL());
};
image.src = button.querySelector("img").src;
});
}
function openoutpaint_send_gallery() {
openoutpaint_get_image_from_gallery()
.then((dataURL) => {
// Send to openOutpaint
openoutpaint.frame.contentWindow.postMessage({
key: openoutpaint.key,
type: "openoutpaint/add-resource",
image: {
dataURL,
resourceName: "Embed Resource",
},
});
})
.catch((error) => {
console.warn("[openoutpaint] No image selected to send to openOutpaint");
});
// Change Tab
Array.from(
gradioApp().querySelectorAll("#tabs > div:first-child button")
).forEach((button) => {
if (button.textContent.trim() === "openOutpaint") {
button.click();
}
});
}
const openoutpaintjs = async () => {
const frame = gradioApp().getElementById("openoutpaint-iframe");
const key = gradioApp().getElementById("openoutpaint-key").value;
openoutpaint.frame = frame;
openoutpaint.key = key;
// Listens for messages from the frame
console.info("[embed] Add message listener");
window.addEventListener("message", ({data, origin, source}) => {
if (source === frame.contentWindow) {
switch (data.type) {
case "ack":
if (data.message.type === "openoutpaint/init") {
console.info("[embed] Received init ack");
clearTimeout(initLoop);
initLoop = null;
}
break;
}
}
});
// Initializes communication channel
let initLoop = null;
const sendInit = () => {
console.info("[embed] Sending init message");
frame.contentWindow.postMessage({
type: "openoutpaint/init",
key,
});
initLoop = setTimeout(sendInit, 1000);
};
sendInit();
};
document.addEventListener("DOMContentLoaded", () => {
const onload = () => {
if (gradioApp().getElementById("openoutpaint-iframe")) {
openoutpaintjs();
} else {
setTimeout(onload, 10);
}
};
onload();
});