File size: 5,108 Bytes
68b7092
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
// based on https://github.com/AUTOMATIC1111/stable-diffusion-webui/blob/v1.6.0/script.js
function gradioApp() {
    const elems = document.getElementsByTagName('gradio-app');
    const elem = elems.length == 0 ? document : elems[0];

    if (elem !== document) {
        elem.getElementById = function(id) {
            return document.getElementById(id);
        };
    }
    return elem.shadowRoot ? elem.shadowRoot : elem;
}

/**
 * Get the currently selected top-level UI tab button (e.g. the button that says "Extras").
 */
function get_uiCurrentTab() {
    return gradioApp().querySelector('#tabs > .tab-nav > button.selected');
}

/**
 * Get the first currently visible top-level UI tab content (e.g. the div hosting the "txt2img" UI).
 */
function get_uiCurrentTabContent() {
    return gradioApp().querySelector('#tabs > .tabitem[id^=tab_]:not([style*="display: none"])');
}

var uiUpdateCallbacks = [];
var uiAfterUpdateCallbacks = [];
var uiLoadedCallbacks = [];
var uiTabChangeCallbacks = [];
var optionsChangedCallbacks = [];
var uiAfterUpdateTimeout = null;
var uiCurrentTab = null;

/**
 * Register callback to be called at each UI update.
 * The callback receives an array of MutationRecords as an argument.
 */
function onUiUpdate(callback) {
    uiUpdateCallbacks.push(callback);
}

/**
 * Register callback to be called soon after UI updates.
 * The callback receives no arguments.
 *
 * This is preferred over `onUiUpdate` if you don't need
 * access to the MutationRecords, as your function will
 * not be called quite as often.
 */
function onAfterUiUpdate(callback) {
    uiAfterUpdateCallbacks.push(callback);
}

/**
 * Register callback to be called when the UI is loaded.
 * The callback receives no arguments.
 */
function onUiLoaded(callback) {
    uiLoadedCallbacks.push(callback);
}

/**
 * Register callback to be called when the UI tab is changed.
 * The callback receives no arguments.
 */
function onUiTabChange(callback) {
    uiTabChangeCallbacks.push(callback);
}

/**
 * Register callback to be called when the options are changed.
 * The callback receives no arguments.
 * @param callback
 */
function onOptionsChanged(callback) {
    optionsChangedCallbacks.push(callback);
}

function executeCallbacks(queue, arg) {
    for (const callback of queue) {
        try {
            callback(arg);
        } catch (e) {
            console.error("error running callback", callback, ":", e);
        }
    }
}

/**
 * Schedule the execution of the callbacks registered with onAfterUiUpdate.
 * The callbacks are executed after a short while, unless another call to this function
 * is made before that time. IOW, the callbacks are executed only once, even
 * when there are multiple mutations observed.
 */
function scheduleAfterUiUpdateCallbacks() {
    clearTimeout(uiAfterUpdateTimeout);
    uiAfterUpdateTimeout = setTimeout(function() {
        executeCallbacks(uiAfterUpdateCallbacks);
    }, 200);
}

var executedOnLoaded = false;

document.addEventListener("DOMContentLoaded", function() {
    var mutationObserver = new MutationObserver(function(m) {
        if (!executedOnLoaded && gradioApp().querySelector('#generate_button')) {
            executedOnLoaded = true;
            executeCallbacks(uiLoadedCallbacks);
        }

        executeCallbacks(uiUpdateCallbacks, m);
        scheduleAfterUiUpdateCallbacks();
        const newTab = get_uiCurrentTab();
        if (newTab && (newTab !== uiCurrentTab)) {
            uiCurrentTab = newTab;
            executeCallbacks(uiTabChangeCallbacks);
        }
    });
    mutationObserver.observe(gradioApp(), {childList: true, subtree: true});
});

/**
 * Add a ctrl+enter as a shortcut to start a generation
 */
document.addEventListener('keydown', function(e) {
    var handled = false;
    if (e.key !== undefined) {
        if ((e.key == "Enter" && (e.metaKey || e.ctrlKey || e.altKey))) handled = true;
    } else if (e.keyCode !== undefined) {
        if ((e.keyCode == 13 && (e.metaKey || e.ctrlKey || e.altKey))) handled = true;
    }
    if (handled) {
        var button = gradioApp().querySelector('button[id=generate_button]');
        if (button) {
            button.click();
        }
        e.preventDefault();
    }
});

/**
 * checks that a UI element is not in another hidden element or tab content
 */
function uiElementIsVisible(el) {
    if (el === document) {
        return true;
    }

    const computedStyle = getComputedStyle(el);
    const isVisible = computedStyle.display !== 'none';

    if (!isVisible) return false;
    return uiElementIsVisible(el.parentNode);
}

function uiElementInSight(el) {
    const clRect = el.getBoundingClientRect();
    const windowHeight = window.innerHeight;
    const isOnScreen = clRect.bottom > 0 && clRect.top < windowHeight;

    return isOnScreen;
}

function playNotification() {
    gradioApp().querySelector('#audio_notification audio')?.play();
}

function set_theme(theme) {
    var gradioURL = window.location.href;
    if (!gradioURL.includes('?__theme=')) {
        window.location.replace(gradioURL + '?__theme=' + theme);
    }
}