Image Generation: Add swipes for generated images

Supersedes #2648

public/index.html

@@ -5801,6 +5801,11 @@
                         <div title="Caption" class="right_menu_button fa-lg fa-solid fa-envelope-open-text mes_img_caption" data-i18n="[title]Caption"></div>
                         <div title="Delete" class="right_menu_button fa-lg fa-solid fa-trash-can mes_img_delete" data-i18n="[title]Delete"></div>
                     </div>
+                    <div class="mes_img_swipes">
+                        <div title="Swipe left" class="right_menu_button fa-lg fa-solid fa-chevron-left mes_img_swipe_left" data-i18n="[title]Swipe left"></div>
+                        <div class="mes_img_swipe_counter">1/1</div>
+                        <div title="Swipe right" class="right_menu_button fa-lg fa-solid fa-chevron-right mes_img_swipe_right" data-i18n="[title]Swipe right"></div>
+                    </div>
                     <img class="mes_img" src="" />
                 </div>
                 <div class="mes_bias"></div>

public/script.js

@@ -459,6 +459,7 @@ export const event_types = {
     LLM_FUNCTION_TOOL_REGISTER: 'llm_function_tool_register',
     LLM_FUNCTION_TOOL_CALL: 'llm_function_tool_call',
     ONLINE_STATUS_CHANGED: 'online_status_changed',
+    IMAGE_SWIPED: 'image_swiped',
 };
 
 export const eventSource = new EventEmitter();
@@ -2112,6 +2113,7 @@ export function updateMessageBlock(messageId, message) {
 export function appendMediaToMessage(mes, messageElement, adjustScroll = true) {
     // Add image to message
     if (mes.extra?.image) {
+        const container = messageElement.find('.mes_img_container');
         const chatHeight = $('#chat').prop('scrollHeight');
         const image = messageElement.find('.mes_img');
         const text = messageElement.find('.mes_text');
@@ -2127,9 +2129,27 @@ export function appendMediaToMessage(mes, messageElement, adjustScroll = true) {
         });
         image.attr('src', mes.extra?.image);
         image.attr('title', mes.extra?.title || mes.title || '');
-        messageElement.find('.mes_img_container').addClass('img_extra');
+        container.addClass('img_extra');
         image.toggleClass('img_inline', isInline);
         text.toggleClass('displayNone', !isInline);
+
+        const imageSwipes = mes.extra.image_swipes;
+        if (Array.isArray(imageSwipes) && imageSwipes.length > 0) {
+            container.addClass('img_swipes');
+            const counter = container.find('.mes_img_swipe_counter');
+            const currentImage = imageSwipes.indexOf(mes.extra.image) + 1;
+            counter.text(`${currentImage}/${imageSwipes.length}`);
+
+            const swipeLeft = container.find('.mes_img_swipe_left');
+            swipeLeft.off('click').on('click', function () {
+                eventSource.emit(event_types.IMAGE_SWIPED, { message: mes, element: messageElement, direction: 'left' });
+            });
+
+            const swipeRight = container.find('.mes_img_swipe_right');
+            swipeRight.off('click').on('click', function () {
+                eventSource.emit(event_types.IMAGE_SWIPED, { message: mes, element: messageElement, direction: 'right' });
+            });
+        }
     }
 
     // Add file to message

public/scripts/extensions/stable-diffusion/index.js

@@ -59,6 +59,7 @@ const initiators = {
     action: 'action',
     interactive: 'interactive',
     wand: 'wand',
+    swipe: 'swipe',
 };
 
 const generationMode = {
@@ -3429,6 +3430,7 @@ async function sendMessage(prompt, image, generationType, additionalNegativePref
             generationType: generationType,
             negative: additionalNegativePrefix,
             inline_image: false,
+            image_swipes: [image],
         },
     };
     context.chat.push(message);
@@ -3657,6 +3659,99 @@ async function writePromptFields(characterId) {
     await writeExtensionField(characterId, 'sd_character_prompt', promptObject);
 }
 
+/**
+ * Switches an image to the next or previous one in the swipe list.
+ * @param {object} args Event arguments
+ * @param {any} args.message Message object
+ * @param {JQuery<HTMLElement>} args.element Message element
+ * @param {string} args.direction Swipe direction
+ * @returns {Promise<void>}
+ */
+async function onImageSwiped({ message, element, direction }) {
+    const context = getContext();
+    const animationClass = 'fa-fade';
+    const messageImg = element.find('.mes_img');
+
+    // Current image is already animating
+    if (messageImg.hasClass(animationClass)) {
+        return;
+    }
+
+    const swipes = message?.extra?.image_swipes;
+
+    if (!Array.isArray(swipes)) {
+        console.warn('No image swipes found in the message');
+        return;
+    }
+
+    const currentIndex = swipes.indexOf(message.extra.image);
+
+    if (currentIndex === -1) {
+        console.warn('Current image not found in the swipes');
+        return;
+    }
+
+    // Switch to previous image or wrap around if at the beginning
+    if (direction === 'left') {
+        const newIndex = currentIndex === 0 ? swipes.length - 1 : currentIndex - 1;
+        message.extra.image = swipes[newIndex];
+
+        // Update the image in the message
+        appendMediaToMessage(message, element, false);
+    }
+
+    // Switch to next image or generate a new one if at the end
+    if (direction === 'right') {
+        const newIndex = currentIndex === swipes.length - 1 ? swipes.length : currentIndex + 1;
+
+        if (newIndex === swipes.length) {
+            const abortController = new AbortController();
+            const swipeControls = element.find('.mes_img_swipes');
+            const stopButton = document.getElementById('sd_stop_gen');
+            const stopListener = () => abortController.abort('Aborted by user');
+            const generationType = message?.extra?.generationType ?? generationMode.FREE;
+            const dimensions = setTypeSpecificDimensions(generationType);
+            const originalSeed = extension_settings.sd.seed;
+            extension_settings.sd.seed = Math.round(Math.random() * Number.MAX_SAFE_INTEGER);
+            let imagePath = '';
+
+            try {
+                $(stopButton).show();
+                eventSource.once(CUSTOM_STOP_EVENT, stopListener);
+                const callback = () => { };
+                const hasNegative = message.extra.negative;
+                const prompt = await refinePrompt(message.extra.title, false, false);
+                const negativePromptPrefix = hasNegative ? await refinePrompt(message.extra.negative, false, true) : '';
+                const characterName = context.characterId
+                    ? context.characters[context.characterId].name
+                    : context.groups[Object.keys(context.groups).filter(x => context.groups[x].id === context.groupId)[0]]?.id?.toString();
+
+                messageImg.addClass(animationClass);
+                swipeControls.hide();
+                imagePath = await sendGenerationRequest(generationType, prompt, negativePromptPrefix, characterName, callback, initiators.swipe, abortController.signal);
+            } finally {
+                $(stopButton).hide();
+                messageImg.removeClass(animationClass);
+                swipeControls.show();
+                eventSource.removeListener(CUSTOM_STOP_EVENT, stopListener);
+                restoreOriginalDimensions(dimensions);
+                extension_settings.sd.seed = originalSeed;
+            }
+
+            if (!imagePath) {
+                return;
+            }
+
+            swipes.push(imagePath);
+        }
+
+        message.extra.image = swipes[newIndex];
+        appendMediaToMessage(message, element, false);
+    }
+
+    await context.saveChat();
+}
+
 jQuery(async () => {
     await addSDGenButtons();
 
@@ -3795,6 +3890,8 @@ jQuery(async () => {
         }
     });
 
+    eventSource.on(event_types.IMAGE_SWIPED, onImageSwiped);
+
     eventSource.on(event_types.CHAT_CHANGED, onChatChanged);
 
     await loadSettings();

public/style.css

@@ -4569,6 +4569,7 @@ a {
     image-rendering: -webkit-optimize-contrast;
 }
 
+.mes_img_swipes,
 .mes_img_controls {
     position: absolute;
     top: 0.1em;
@@ -4578,9 +4579,16 @@ a {
     opacity: 0;
     flex-direction: row;
     justify-content: space-between;
+    align-items: center;
     padding: 1em;
 }
 
+.mes_img_swipes {
+    top: unset;
+    bottom: 0.1rem;
+}
+
+.mes_img_swipes .right_menu_button,
 .mes_img_controls .right_menu_button {
     filter: brightness(90%);
     text-shadow: 1px 1px var(--SmartThemeShadowColor) !important;
@@ -4589,16 +4597,20 @@ a {
     width: 1.25em;
 }
 
+.mes_img_swipes .right_menu_button::before,
 .mes_img_controls .right_menu_button::before {
     /* Fix weird alignment with this font-awesome icons on focus */
     position: relative;
     top: 0.6125em;
 }
 
+.mes_img_swipes .right_menu_button:hover,
 .mes_img_controls .right_menu_button:hover {
     filter: brightness(150%);
 }
 
+.mes_img_container:hover .mes_img_swipes,
+.mes_img_container:focus-within .mes_img_swipes,
 .mes_img_container:hover .mes_img_controls,
 .mes_img_container:focus-within .mes_img_controls {
     opacity: 1;
@@ -4612,6 +4624,17 @@ body:not(.caption) .mes_img_caption {
     display: none;
 }
 
+.mes_img_container:not(.img_swipes) .mes_img_swipes,
+body:not(.sd) .mes_img_swipes {
+    display: none;
+}
+
+.mes_img_swipe_counter {
+    font-weight: 600;
+    filter: drop-shadow(2px 4px 6px black);
+    cursor: default;
+}
+
 .img_enlarged_holder {
     /* Scaling via flex-grow and object-fit only works if we have some kind of base-height set */
     min-height: 120px;