MemeMaster / javascript /bboxHint.js
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/*
Part of the implementation is borrowed and modified from multidiffusion-upscaler-for-automatic1111,
publicly available at https://github.com/pkuliyi2015/multidiffusion-upscaler-for-automatic1111
*/
const BBOX_MAX_NUM = 16;
const BBOX_WARNING_SIZE = 1280;
const DEFAULT_X = 0.4;
const DEFAULT_Y = 0.4;
const DEFAULT_H = 0.2;
const DEFAULT_W = 0.2;
// ref: https://html-color.codes/
const COLOR_MAP = [
['#ff0000', 'rgba(255, 0, 0, 0.3)'], // red
['#ff9900', 'rgba(255, 153, 0, 0.3)'], // orange
['#ffff00', 'rgba(255, 255, 0, 0.3)'], // yellow
['#33cc33', 'rgba(51, 204, 51, 0.3)'], // green
['#33cccc', 'rgba(51, 204, 204, 0.3)'], // indigo
['#0066ff', 'rgba(0, 102, 255, 0.3)'], // blue
['#6600ff', 'rgba(102, 0, 255, 0.3)'], // purple
['#cc00cc', 'rgba(204, 0, 204, 0.3)'], // dark pink
['#ff6666', 'rgba(255, 102, 102, 0.3)'], // light red
['#ffcc66', 'rgba(255, 204, 102, 0.3)'], // light orange
['#99cc00', 'rgba(153, 204, 0, 0.3)'], // lime green
['#00cc99', 'rgba(0, 204, 153, 0.3)'], // teal
['#0099cc', 'rgba(0, 153, 204, 0.3)'], // steel blue
['#9933cc', 'rgba(153, 51, 204, 0.3)'], // lavender
['#ff3399', 'rgba(255, 51, 153, 0.3)'], // hot pink
['#996633', 'rgba(153, 102, 51, 0.3)'], // brown
];
const RESIZE_BORDER = 5;
const MOVE_BORDER = 5;
const t2i_bboxes = new Array(BBOX_MAX_NUM).fill(null);
const i2i_bboxes = new Array(BBOX_MAX_NUM).fill(null);
function gradioApp() {
const elems = document.getElementsByTagName('gradio-app')
const gradioShadowRoot = elems.length == 0 ? null : elems[0].shadowRoot
return !!gradioShadowRoot ? gradioShadowRoot : document;
}
// ↓↓↓ called from gradio ↓↓↓
function onCreateT2IRefClick(overwrite) {
let width, height;
if (overwrite) {
const overwriteInputs = gradioApp().querySelectorAll('#MD-overwrite-width-t2i input, #MD-overwrite-height-t2i input');
width = parseInt(overwriteInputs[0].value);
height = parseInt(overwriteInputs[2].value);
} else {
const sizeInputs = gradioApp().querySelectorAll('#txt2img_width input, #txt2img_height input');
width = parseInt(sizeInputs[0].value);
height = parseInt(sizeInputs[2].value);
}
if (isNaN(width)) width = 512;
if (isNaN(height)) height = 512;
// Concat it to string to bypass the gradio bug
// ε‘ι»‘ζΆεŠΏεŠ›δ½Žε€΄
return width.toString() + 'x' + height.toString();
}
function onCreateI2IRefClick() {
const canvas = gradioApp().querySelector('#img2img_image img');
return canvas.src;
}
function onBoxEnableClick(is_t2i, idx, enable) {
let canvas = null;
let bboxes = null;
let locator = null;
if (is_t2i) {
// locator = () => gradioApp().querySelector('#MD-bbox-ref-t2i');
locator = () => gradioApp().querySelector('#MD-bbox-rect-t2i');
bboxes = t2i_bboxes;
} else {
locator = () => gradioApp().querySelector('#MD-bbox-ref-i2i');
bboxes = i2i_bboxes;
}
ref_div = locator();
canvas = ref_div.querySelector('img');
if (!canvas) { return false; }
if (enable) {
// Check if the bounding box already exists
if (!bboxes[idx]) {
// Initialize bounding box
const bbox = [DEFAULT_X, DEFAULT_Y, DEFAULT_W, DEFAULT_H];
const colorMap = COLOR_MAP[idx % COLOR_MAP.length];
const div = document.createElement('div');
div.id = 'MD-bbox-' + (is_t2i ? 't2i-' : 'i2i-') + idx;
div.style.left = '0px';
div.style.top = '0px';
div.style.width = '0px';
div.style.height = '0px';
div.style.position = 'absolute';
div.style.border = '2px solid ' + colorMap[0];
div.style.background = colorMap[1];
div.style.zIndex = '900';
div.style.display = 'none';
// A text tip to warn the user if bbox is too large
const tip = document.createElement('span');
tip.id = 'MD-tip-' + (is_t2i ? 't2i-' : 'i2i-') + idx;
tip.style.left = '50%';
tip.style.top = '50%';
tip.style.position = 'absolute';
tip.style.transform = 'translate(-50%, -50%)';
tip.style.fontSize = '12px';
tip.style.fontWeight = 'bold';
tip.style.textAlign = 'center';
tip.style.color = colorMap[0];
tip.style.zIndex = '901';
tip.style.display = 'none';
tip.innerHTML = 'Warning: Region very large!<br>Take care of VRAM usage!';
div.appendChild(tip);
div.addEventListener('mousedown', function (e) {
if (e.button === 0) { onBoxMouseDown(e, is_t2i, idx); }
});
div.addEventListener('mousemove', function (e) {
updateCursorStyle(e, is_t2i, idx);
});
const shower = function() { // insert to DOM if necessary
if (!gradioApp().querySelector('#' + div.id)) {
locator().appendChild(div);
}
}
bboxes[idx] = [div, bbox, shower];
}
// Show the bounding box
displayBox(canvas, is_t2i, bboxes[idx]);
return true;
} else {
if (!bboxes[idx]) { return false; }
const [div, bbox, shower] = bboxes[idx];
div.style.display = 'none';
}
return false;
}
function onBoxChange(is_t2i, idx, what, v) {
// This function handles all the changes of the bounding box
// Including the rendering and python slider update
let bboxes = null;
let canvas = null;
if (is_t2i) {
bboxes = t2i_bboxes;
canvas = gradioApp().querySelector('#MD-bbox-rect-t2i img');
} else {
bboxes = i2i_bboxes;
canvas = gradioApp().querySelector('#MD-bbox-ref-i2i img');
}
if (!bboxes[idx] || !canvas) {
switch (what) {
case 'x': return DEFAULT_X;
case 'y': return DEFAULT_Y;
case 'w': return DEFAULT_W;
case 'h': return DEFAULT_H;
}
}
const [div, bbox, shower] = bboxes[idx];
if (div.style.display === 'none') { return v; }
// parse trigger
switch (what) {
case 'x': bbox[0] = v; break;
case 'y': bbox[1] = v; break;
case 'w': bbox[2] = v; break;
case 'h': bbox[3] = v; break;
}
displayBox(canvas, is_t2i, bboxes[idx]);
return v;
}
// ↓↓↓ called from js ↓↓↓
function getSeedInfo(is_t2i, id, current_seed) {
const info_id = is_t2i ? '#html_info_txt2img' : '#html_info_img2img';
const info_div = gradioApp().querySelector(info_id);
try{
current_seed = parseInt(current_seed);
} catch(e) {
current_seed = -1;
}
if (!info_div) return current_seed;
let info = info_div.innerHTML;
if (!info) return current_seed;
// remove all html tags
info = info.replace(/<[^>]*>/g, '');
// Find a json string 'region control:' in the info
// get its index
idx = info.indexOf('Region control');
if (idx == -1) return current_seed;
// get the json string (detect the bracket)
// find the first '{'
let start_idx = info.indexOf('{', idx);
let bracket = 1;
let end_idx = start_idx + 1;
while (bracket > 0 && end_idx < info.length) {
if (info[end_idx] == '{') bracket++;
if (info[end_idx] == '}') bracket--;
end_idx++;
}
if (bracket > 0) {
return current_seed;
}
// get the json string
let json_str = info.substring(start_idx, end_idx);
// replace the single quote to double quote
json_str = json_str.replace(/'/g, '"');
// replace python True to javascript true, False to false
json_str = json_str.replace(/True/g, 'true');
// parse the json string
let json = JSON.parse(json_str);
// get the seed if the region id is in the json
const region_id = 'Region ' + id.toString();
if (!(region_id in json)) return current_seed;
const region = json[region_id];
if (!('seed' in region)) return current_seed;
let seed = region['seed'];
try{
seed = parseInt(seed);
} catch(e) {
return current_seed;
}
return seed;
}
function displayBox(canvas, is_t2i, bbox_info) {
// check null input
const [div, bbox, shower] = bbox_info;
const [x, y, w, h] = bbox;
if (!canvas || !div || x == null || y == null || w == null || h == null) { return; }
// client: canvas widget display size
// natural: content image real size
let vpScale = Math.min(canvas.clientWidth / canvas.naturalWidth, canvas.clientHeight / canvas.naturalHeight);
let canvasCenterX = canvas.clientWidth / 2;
let canvasCenterY = canvas.clientHeight / 2;
let scaledX = canvas.naturalWidth * vpScale;
let scaledY = canvas.naturalHeight * vpScale;
let viewRectLeft = canvasCenterX - scaledX / 2;
let viewRectRight = canvasCenterX + scaledX / 2;
let viewRectTop = canvasCenterY - scaledY / 2;
let viewRectDown = canvasCenterY + scaledY / 2;
let xDiv = viewRectLeft + scaledX * x;
let yDiv = viewRectTop + scaledY * y;
let wDiv = Math.min(scaledX * w, viewRectRight - xDiv);
let hDiv = Math.min(scaledY * h, viewRectDown - yDiv);
// Calculate warning bbox size
let upscalerFactor = 1.0;
if (!is_t2i) {
const upscalerInput = parseFloat(gradioApp().querySelector('#MD-i2i-upscaler-factor input').value);
if (!isNaN(upscalerInput)) upscalerFactor = upscalerInput;
}
let maxSize = BBOX_WARNING_SIZE / upscalerFactor * vpScale;
let maxW = maxSize / scaledX;
let maxH = maxSize / scaledY;
if (w > maxW || h > maxH) {
div.querySelector('span').style.display = 'block';
} else {
div.querySelector('span').style.display = 'none';
}
// update <div> when not equal
div.style.left = xDiv + 'px';
div.style.top = yDiv + 'px';
div.style.width = wDiv + 'px';
div.style.height = hDiv + 'px';
div.style.display = 'block';
// insert it to DOM if not appear
shower();
}
function onBoxMouseDown(e, is_t2i, idx) {
let bboxes = null;
let canvas = null;
if (is_t2i) {
bboxes = t2i_bboxes;
canvas = gradioApp().querySelector('#MD-bbox-rect-t2i img');
} else {
bboxes = i2i_bboxes;
canvas = gradioApp().querySelector('#MD-bbox-ref-i2i img');
}
// Get the bounding box
if (!canvas || !bboxes[idx]) { return; }
const [div, bbox, shower] = bboxes[idx];
// Check if the click is inside the bounding box
const boxRect = div.getBoundingClientRect();
let mouseX = e.clientX;
let mouseY = e.clientY;
const resizeLeft = mouseX >= boxRect.left && mouseX <= boxRect.left + RESIZE_BORDER;
const resizeRight = mouseX >= boxRect.right - RESIZE_BORDER && mouseX <= boxRect.right;
const resizeTop = mouseY >= boxRect.top && mouseY <= boxRect.top + RESIZE_BORDER;
const resizeBottom = mouseY >= boxRect.bottom - RESIZE_BORDER && mouseY <= boxRect.bottom;
const moveHorizontal = mouseX >= boxRect.left + MOVE_BORDER && mouseX <= boxRect.right - MOVE_BORDER;
const moveVertical = mouseY >= boxRect.top + MOVE_BORDER && mouseY <= boxRect.bottom - MOVE_BORDER;
if (!resizeLeft && !resizeRight && !resizeTop && !resizeBottom && !moveHorizontal && !moveVertical) { return; }
const horizontalPivot = resizeLeft ? bbox[0] + bbox[2] : bbox[0];
const verticalPivot = resizeTop ? bbox[1] + bbox[3] : bbox[1];
// Canvas can be regarded as invariant during the drag operation
// Calculate in advance to reduce overhead
// Calculate viewport scale based on the current canvas size and the natural image size
let vpScale = Math.min(canvas.clientWidth / canvas.naturalWidth, canvas.clientHeight / canvas.naturalHeight);
let vpOffset = canvas.getBoundingClientRect();
// Calculate scaled dimensions of the canvas
let scaledX = canvas.naturalWidth * vpScale;
let scaledY = canvas.naturalHeight * vpScale;
// Calculate the canvas center and view rectangle coordinates
let canvasCenterX = (vpOffset.left + window.scrollX) + canvas.clientWidth / 2;
let canvasCenterY = (vpOffset.top + window.scrollY) + canvas.clientHeight / 2;
let viewRectLeft = canvasCenterX - scaledX / 2 - window.scrollX;
let viewRectRight = canvasCenterX + scaledX / 2 - window.scrollX;
let viewRectTop = canvasCenterY - scaledY / 2 - window.scrollY;
let viewRectDown = canvasCenterY + scaledY / 2 - window.scrollY;
mouseX = Math.min(Math.max(mouseX, viewRectLeft), viewRectRight);
mouseY = Math.min(Math.max(mouseY, viewRectTop), viewRectDown);
//const accordion = gradioApp().querySelector(`#MD-accordion-${is_t2i ? 't2i' : 'i2i'}-${idx}`);
const accordion = gradioApp().querySelector('#MD-tab-t2i');
// Move or resize the bounding box on mousemove
function onMouseMove(e) {
// Prevent selecting anything irrelevant
e.preventDefault();
// Get the new mouse position
let newMouseX = e.clientX;
let newMouseY = e.clientY;
// clamp the mouse position to the view rectangle
newMouseX = Math.min(Math.max(newMouseX, viewRectLeft), viewRectRight);
newMouseY = Math.min(Math.max(newMouseY, viewRectTop), viewRectDown);
// Calculate the mouse movement delta
const dx = (newMouseX - mouseX) / scaledX;
const dy = (newMouseY - mouseY) / scaledY;
// Update the mouse position
mouseX = newMouseX;
mouseY = newMouseY;
// if no move just return
if (dx === 0 && dy === 0) { return; }
// Update the mouse position
let [x, y, w, h] = bbox;
if (moveHorizontal && moveVertical) {
// If moving the bounding box
x = Math.min(Math.max(x + dx, 0), 1 - w);
y = Math.min(Math.max(y + dy, 0), 1 - h);
} else {
// If resizing the bounding box
if (resizeLeft || resizeRight) {
if (x < horizontalPivot) {
if (dx <= w) {
// If still within the left side of the pivot
x = x + dx;
w = w - dx;
} else {
// If crossing the pivot
w = dx - w;
x = horizontalPivot;
}
} else {
if (w + dx < 0) {
// If still within the right side of the pivot
x = horizontalPivot + w + dx;
w = - dx - w;
} else {
// If crossing the pivot
x = horizontalPivot;
w = w + dx;
}
}
// Clamp the bounding box to the image
if (x < 0) {
w = w + x;
x = 0;
} else if (x + w > 1) {
w = 1 - x;
}
}
// Same as above, but for the vertical axis
if (resizeTop || resizeBottom) {
if (y < verticalPivot) {
if (dy <= h) {
y = y + dy;
h = h - dy;
} else {
h = dy - h;
y = verticalPivot;
}
} else {
if (h + dy < 0) {
y = verticalPivot + h + dy;
h = - dy - h;
} else {
y = verticalPivot;
h = h + dy;
}
}
if (y < 0) {
h = h + y;
y = 0;
} else if (y + h > 1) {
h = 1 - y;
}
}
}
const [div, old_bbox, _] = bboxes[idx];
// If all the values are the same, just return
if (old_bbox[0] === x && old_bbox[1] === y && old_bbox[2] === w && old_bbox[3] === h) { return; }
// else update the bbox
const event = new Event('input');
const coords = [x, y, w, h];
// <del>The querySelector is not very efficient, so we query it once and reuse it</del>
// caching will result gradio bugs that stucks bbox and cannot move & drag
const sliderIds = ['x', 'y', 'w', 'h'];
// We try to select the input sliders
const sliderSelectors = sliderIds.map(id => `#MD-${is_t2i ? 't2i' : 'i2i'}-${idx}-${id} input`).join(', ');
let sliderInputs = accordion.querySelectorAll(sliderSelectors);
// alert(sliderInputs.length)
if (sliderInputs.length == 0) {
// If we failed, the accordion is probably closed and sliders are removed in the dom, so we open it
accordion.querySelector('.label-wrap').click();
// and try again
sliderInputs = accordion.querySelectorAll(sliderSelectors);
// If we still failed, we just return
if (sliderInputs.length == 0) { return; }
}
for (let i = 0; i < 4; i++) {
if (old_bbox[i] !== coords[i]) {
sliderInputs[2*i].value = coords[i];
sliderInputs[2*i].dispatchEvent(event);
}
}
}
// Remove the mousemove and mouseup event listeners
function onMouseUp() {
document.removeEventListener('mousemove', onMouseMove);
document.removeEventListener('mouseup', onMouseUp);
}
// Add the event listeners
document.addEventListener('mousemove', onMouseMove);
document.addEventListener('mouseup', onMouseUp);
}
function updateCursorStyle(e, is_t2i, idx) {
// This function changes the cursor style when hovering over the bounding box
const bboxes = is_t2i ? t2i_bboxes : i2i_bboxes;
if (!bboxes[idx]) return;
const div = bboxes[idx][0];
const boxRect = div.getBoundingClientRect();
const mouseX = e.clientX;
const mouseY = e.clientY;
const resizeLeft = mouseX >= boxRect.left && mouseX <= boxRect.left + RESIZE_BORDER;
const resizeRight = mouseX >= boxRect.right - RESIZE_BORDER && mouseX <= boxRect.right;
const resizeTop = mouseY >= boxRect.top && mouseY <= boxRect.top + RESIZE_BORDER;
const resizeBottom = mouseY >= boxRect.bottom - RESIZE_BORDER && mouseY <= boxRect.bottom;
if ((resizeLeft && resizeTop) || (resizeRight && resizeBottom)) {
div.style.cursor = 'nwse-resize';
} else if ((resizeLeft && resizeBottom) || (resizeRight && resizeTop)) {
div.style.cursor = 'nesw-resize';
} else if (resizeLeft || resizeRight) {
div.style.cursor = 'ew-resize';
} else if (resizeTop || resizeBottom) {
div.style.cursor = 'ns-resize';
} else {
div.style.cursor = 'move';
}
}
// ↓↓↓ auto called event listeners ↓↓↓
function updateBoxes(is_t2i) {
// This function redraw all bounding boxes
let bboxes = null;
let canvas = null;
if (is_t2i) {
bboxes = t2i_bboxes;
canvas = gradioApp().querySelector('#MD-bbox-rect-t2i img');
} else {
bboxes = i2i_bboxes;
canvas = gradioApp().querySelector('#MD-bbox-ref-i2i img');
}
if (!canvas) return;
for (let idx = 0; idx < bboxes.length; idx++) {
if (!bboxes[idx]) continue;
const [div, bbox, shower] = bboxes[idx];
if (div.style.display === 'none') { return; }
displayBox(canvas, is_t2i, bboxes[idx]);
}
}
window.addEventListener('resize', _ => {
updateBoxes(true);
updateBoxes(false);
});
// ======== Gradio Bug Fix ========
// For Gradio versions > 3.16.0 and < 3.29.0, the accordion DOM will be deleted when it is closed.
// We need to judge the versions and listen to the accordion open event, rerender the bbox at that time.
// This silly bug fix is only for compatibility, we recommend to update the gradio version to 3.29.0 or higher.
try {
const GRADIO_VERSIONS = window.gradio_config["version"].split(".");
const gradio_major_version = parseInt(GRADIO_VERSIONS[0]);
const gradio_minor_version = parseInt(GRADIO_VERSIONS[1]);
if (gradio_major_version == 3 && gradio_minor_version > 16 && gradio_minor_version < 29) {
let listener = e => {
if (!e) { return; }
if (!e.target) { return; }
if (!e.target.classList) { return; }
if (!e.target.classList.contains('label-wrap')) { return; }
for (let tab of ['t2i', 'i2i']) {
const div = gradioApp().querySelector('#MD-bbox-control-' + tab +' div.label-wrap');
if (!div) { continue; }
updateBoxes(tab === 't2i');
}
};
window.addEventListener('DOMNodeInserted', listener);
}
} catch (ignored) {
// If the above code failed, the gradio version shouldn't be in the range of 3.16.0 to 3.29.0, so we just return.
}
// ======== Gradio Bug Fix ========