File size: 6,149 Bytes
1c72248
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
'use client';
import { useState, useEffect, useMemo } from 'react';
import { createGlobalState } from 'react-global-hooks';
import { Dialog, DialogBackdrop, DialogPanel } from '@headlessui/react';

export interface SampleImageModalState {
  imgPath: string;
  numSamples: number;
  sampleImages: string[];
}

export const sampleImageModalState = createGlobalState<SampleImageModalState | null>(null);

export const openSampleImage = (sampleImageProps: SampleImageModalState) => {
  sampleImageModalState.set(sampleImageProps);
};

export default function SampleImageModal() {
  const [imageModal, setImageModal] = sampleImageModalState.use();
  const [isOpen, setIsOpen] = useState(false);

  useEffect(() => {
    if (imageModal) {
      setIsOpen(true);
    }
  }, [imageModal]);

  useEffect(() => {
    if (!isOpen) {
      // use timeout to allow the dialog to close before resetting the state
      setTimeout(() => {
        setImageModal(null);
      }, 500);
    }
  }, [isOpen]);

  const onCancel = () => {
    setIsOpen(false);
  };

  const imgInfo = useMemo(() => {
    const ii = {
      filename: '',
      step: 0,
      promptIdx: 0,
    };
    if (imageModal?.imgPath) {
      const filename = imageModal.imgPath.split('/').pop();
      if (!filename) return ii;
      // filename is <timestep>__<zero_pad_step>_<prompt_idx>.<ext>
      ii.filename = filename as string;
      const parts = filename
        .split('.')[0]
        .split('_')
        .filter(p => p !== '');
      if (parts.length === 3) {
        ii.step = parseInt(parts[1]);
        ii.promptIdx = parseInt(parts[2]);
      }
    }
    return ii;
  }, [imageModal]);

  const handleArrowUp = () => {
    if (!imageModal) return;
    console.log('Arrow Up pressed');
    // Change image to same sample but up one step
    const currentIdx = imageModal.sampleImages.findIndex(img => img === imageModal.imgPath);
    if (currentIdx === -1) return;
    const nextIdx = currentIdx - imageModal.numSamples;
    if (nextIdx < 0) return;
    openSampleImage({
      imgPath: imageModal.sampleImages[nextIdx],
      numSamples: imageModal.numSamples,
      sampleImages: imageModal.sampleImages,
    });
  };

  const handleArrowDown = () => {
    if (!imageModal) return;
    console.log('Arrow Down pressed');
    // Change image to same sample but down one step
    const currentIdx = imageModal.sampleImages.findIndex(img => img === imageModal.imgPath);
    if (currentIdx === -1) return;
    const nextIdx = currentIdx + imageModal.numSamples;
    if (nextIdx >= imageModal.sampleImages.length) return;
    openSampleImage({
      imgPath: imageModal.sampleImages[nextIdx],
      numSamples: imageModal.numSamples,
      sampleImages: imageModal.sampleImages,
    });
  };

  const handleArrowLeft = () => {
    if (!imageModal) return;
    if (imgInfo.promptIdx === 0) return;
    console.log('Arrow Left pressed');
    // go to previous sample
    const currentIdx = imageModal.sampleImages.findIndex(img => img === imageModal.imgPath);
    if (currentIdx === -1) return;
    const minIdx = currentIdx - imgInfo.promptIdx;
    const nextIdx = currentIdx - 1;
    if (nextIdx < minIdx) return;
    openSampleImage({
      imgPath: imageModal.sampleImages[nextIdx],
      numSamples: imageModal.numSamples,
      sampleImages: imageModal.sampleImages,
    });
  };

  const handleArrowRight = () => {
    if (!imageModal) return;
    console.log('Arrow Right pressed');
    // go to next sample
    const currentIdx = imageModal.sampleImages.findIndex(img => img === imageModal.imgPath);
    if (currentIdx === -1) return;
    const stepMinIdx = currentIdx - imgInfo.promptIdx;
    const maxIdx = stepMinIdx + imageModal.numSamples - 1;
    const nextIdx = currentIdx + 1;
    if (nextIdx > maxIdx) return;
    if (nextIdx >= imageModal.sampleImages.length) return;
    openSampleImage({
      imgPath: imageModal.sampleImages[nextIdx],
      numSamples: imageModal.numSamples,
      sampleImages: imageModal.sampleImages,
    });
  };

  // Handle keyboard events
  useEffect(() => {
    const handleKeyDown = (event: KeyboardEvent) => {
      if (!isOpen) return;

      switch (event.key) {
        case 'Escape':
          onCancel();
          break;
        case 'ArrowUp':
          handleArrowUp();
          break;
        case 'ArrowDown':
          handleArrowDown();
          break;
        case 'ArrowLeft':
          handleArrowLeft();
          break;
        case 'ArrowRight':
          handleArrowRight();
          break;
        default:
          break;
      }
    };

    window.addEventListener('keydown', handleKeyDown);

    return () => {
      window.removeEventListener('keydown', handleKeyDown);
    };
  }, [isOpen, imageModal, imgInfo]);

  return (
    <Dialog open={isOpen} onClose={onCancel} className="relative z-10">
      <DialogBackdrop
        transition
        className="fixed inset-0 bg-gray-900/75 transition-opacity data-closed:opacity-0 data-enter:duration-300 data-enter:ease-out data-leave:duration-200 data-leave:ease-in"
      />

      <div className="fixed inset-0 z-10 w-screen overflow-y-auto">
        <div className="flex min-h-full items-center justify-center p-4 text-center">
          <DialogPanel
            transition
            className="relative transform overflow-hidden rounded-lg bg-gray-800 text-left shadow-xl transition-all data-closed:translate-y-4 data-closed:opacity-0 data-enter:duration-300 data-enter:ease-out data-leave:duration-200 data-leave:ease-in max-w-[95%] max-h-[95vh] data-closed:sm:translate-y-0 data-closed:sm:scale-95"
          >
            <div className="flex justify-center items-center">
              {imageModal?.imgPath && (
                <img
                  src={`/api/img/${encodeURIComponent(imageModal.imgPath)}`}
                  alt="Sample Image"
                  className="max-w-full max-h-[calc(95vh-2rem)] object-contain"
                />
              )}
            </div>
            <div className="bg-gray-950 text-center text-sm p-2">step: {imgInfo.step}</div>
          </DialogPanel>
        </div>
      </div>
    </Dialog>
  );
}