feat: improve embedded chatbot styles (#18692)

web/app/components/base/chat/embedded-chatbot/header/index.tsx

@@ -1,6 +1,6 @@
 import type { FC } from 'react'
-import React from 'react'
-import { RiResetLeftLine } from '@remixicon/react'
+import React, { useCallback, useEffect, useState } from 'react'
+import { RiCollapseDiagonal2Line, RiExpandDiagonal2Line, RiResetLeftLine } from '@remixicon/react'
 import { useTranslation } from 'react-i18next'
 import type { Theme } from '../theme/theme-context'
 import { CssTransform } from '../theme/utils'
@@ -36,6 +36,44 @@ const Header: FC<IHeaderProps> = ({
     currentConversationId,
     inputsForms,
   } = useEmbeddedChatbotContext()
+
+  const isClient = typeof window !== 'undefined'
+  const isIframe = isClient ? window.self !== window.top : false
+  const [parentOrigin, setParentOrigin] = useState('')
+  const [showToggleExpandButton, setShowToggleExpandButton] = useState(false)
+  const [expanded, setExpanded] = useState(false)
+
+  const handleMessageReceived = useCallback((event: MessageEvent) => {
+    let currentParentOrigin = parentOrigin
+    if (!currentParentOrigin && event.data.type === 'dify-chatbot-config') {
+      currentParentOrigin = event.origin
+      setParentOrigin(event.origin)
+    }
+    if (event.origin !== currentParentOrigin)
+      return
+    if (event.data.type === 'dify-chatbot-config')
+      setShowToggleExpandButton(event.data.payload.isToggledByButton && !event.data.payload.isDraggable)
+  }, [parentOrigin])
+
+  useEffect(() => {
+    if (!isIframe) return
+
+    const listener = (event: MessageEvent) => handleMessageReceived(event)
+    window.addEventListener('message', listener)
+
+    window.parent.postMessage({ type: 'dify-chatbot-iframe-ready' }, '*')
+
+    return () => window.removeEventListener('message', listener)
+  }, [isIframe, handleMessageReceived])
+
+  const handleToggleExpand = useCallback(() => {
+    if (!isIframe || !showToggleExpandButton) return
+    setExpanded(!expanded)
+    window.parent.postMessage({
+      type: 'dify-chatbot-expand-change',
+    }, parentOrigin)
+  }, [isIframe, parentOrigin, showToggleExpandButton, expanded])
+
   if (!isMobile) {
     return (
       <div className='flex h-14 shrink-0 items-center justify-end p-3'>
@@ -59,6 +97,21 @@ const Header: FC<IHeaderProps> = ({
           {currentConversationId && (
             <Divider type='vertical' className='h-3.5' />
           )}
+          {
+            showToggleExpandButton && (
+              <Tooltip
+                popupContent={expanded ? t('share.chat.collapse') : t('share.chat.expand')}
+              >
+                <ActionButton size='l' onClick={handleToggleExpand}>
+                  {
+                    expanded
+                      ? <RiCollapseDiagonal2Line className='h-[18px] w-[18px]' />
+                      : <RiExpandDiagonal2Line className='h-[18px] w-[18px]' />
+                  }
+                </ActionButton>
+              </Tooltip>
+            )
+          }
           {currentConversationId && allowResetChat && (
             <Tooltip
               popupContent={t('share.chat.resetChat')}
@@ -91,6 +144,21 @@ const Header: FC<IHeaderProps> = ({
         </div>
       </div>
       <div className='flex items-center gap-1'>
+        {
+          showToggleExpandButton && (
+            <Tooltip
+              popupContent={expanded ? t('share.chat.collapse') : t('share.chat.expand')}
+            >
+              <ActionButton size='l' onClick={handleToggleExpand}>
+                {
+                  expanded
+                    ? <RiCollapseDiagonal2Line className={cn('h-[18px] w-[18px]', theme?.colorPathOnHeader)} />
+                    : <RiExpandDiagonal2Line className={cn('h-[18px] w-[18px]', theme?.colorPathOnHeader)} />
+                }
+              </ActionButton>
+            </Tooltip>
+          )
+        }
         {currentConversationId && allowResetChat && (
           <Tooltip
             popupContent={t('share.chat.resetChat')}

web/i18n/de-DE/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'Versuchen zu lösen',
     temporarySystemIssue: 'Entschuldigung, vorübergehendes Systemproblem.',
+    expand: 'Erweitern',
+    collapse: 'Reduzieren',
   },
   generation: {
     tabs: {

web/i18n/en-US/share-app.ts

@@ -34,6 +34,8 @@ const translation = {
     },
     tryToSolve: 'Try to solve',
     temporarySystemIssue: 'Sorry, temporary system issue.',
+    expand: 'Expand',
+    collapse: 'Collapse',
   },
   generation: {
     tabs: {

web/i18n/es-ES/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'Intentar resolver',
     temporarySystemIssue: 'Lo sentimos, hay un problema temporal del sistema.',
+    expand: 'Ampliar',
+    collapse: 'Contraer',
   },
   generation: {
     tabs: {

web/i18n/fa-IR/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: 'سعی کنید حل کنید',
     temporarySystemIssue: 'ببخشید، مشکل موقت سیستمی.',
+    expand: 'باز کردن',
+    collapse: 'بستن',
   },
   generation: {
     tabs: {

web/i18n/fr-FR/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'Essayez de résoudre',
     temporarySystemIssue: 'Désolé, problème temporaire du système.',
+    expand: 'Développer',
+    collapse: 'Réduire',
   },
   generation: {
     tabs: {

web/i18n/hi-IN/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'समाधान करने का प्रयास करें',
     temporarySystemIssue: 'अभी सिस्टम में समस्या है, कृपया पुनः प्रयास करें।',
+    expand: 'विस्तार करें',
+    collapse: 'संकुचित करें',
   },
   generation: {
     tabs: {

web/i18n/it-IT/share-app.ts

@@ -28,6 +28,8 @@ const translation = {
     },
     tryToSolve: 'Prova a risolvere',
     temporarySystemIssue: 'Spiacente, problema temporaneo del sistema.',
+    expand: 'Espandi',
+    collapse: 'Riduci',
   },
   generation: {
     tabs: {

web/i18n/ja-JP/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: '問題を解決する',
     temporarySystemIssue: 'システムに一時的な問題が発生しています',
+    expand: '拡大',
+    collapse: '縮小',
   },
   generation: {
     tabs: {

web/i18n/ko-KR/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: '해결하려고 합니다',
     temporarySystemIssue: '죄송합니다. 일시적인 시스템 문제가 발생했습니다.',
+    expand: '확장',
+    collapse: '축소',
   },
   generation: {
     tabs: {

web/i18n/pl-PL/share-app.ts

@@ -27,6 +27,8 @@ const translation = {
     },
     tryToSolve: 'Spróbuj rozwiązać',
     temporarySystemIssue: 'Przepraszamy, tymczasowy problem systemowy.',
+    expand: 'Rozwiń',
+    collapse: 'Zwiń',
   },
   generation: {
     tabs: {

web/i18n/pt-BR/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'Tente resolver',
     temporarySystemIssue: 'Desculpe, problema temporário do sistema.',
+    expand: 'Expandir',
+    collapse: 'Contrair',
   },
   generation: {
     tabs: {

web/i18n/ro-RO/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'Încercați să rezolvați',
     temporarySystemIssue: 'Ne pare rău, problemă temporară a sistemului.',
+    expand: 'Extinde',
+    collapse: 'Restrânge',
   },
   generation: {
     tabs: {

web/i18n/ru-RU/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: 'Попробуйте решить',
     temporarySystemIssue: 'Извините, временная проблема с системой.',
+    expand: 'Развернуть',
+    collapse: 'Свернуть',
   },
   generation: {
     tabs: {

web/i18n/sl-SI/share-app.ts

@@ -27,6 +27,8 @@ const translation = {
     },
     tryToSolve: 'Poskusite rešiti',
     temporarySystemIssue: 'Oprostite, začasna težava s sistemom.',
+    expand: 'Razširi',
+    collapse: 'Skrči',
   },
   generation: {
     tabs: {

web/i18n/th-TH/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: 'พยายามแก้',
     temporarySystemIssue: 'ขออภัย ปัญหาระบบชั่วคราว',
+    expand: 'ขยาย',
+    collapse: 'ย่อ',
   },
   generation: {
     tabs: {

web/i18n/tr-TR/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: 'Çözmeyi Dene',
     temporarySystemIssue: 'Üzgünüz, geçici sistem sorunu.',
+    expand: 'Genişlet',
+    collapse: 'Kısıtla',
   },
   generation: {
     tabs: {

web/i18n/uk-UA/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: 'Спробувати вирішити',
     temporarySystemIssue: 'Вибачте, тимчасова системна проблема.',
+    expand: 'Розгорнути',
+    collapse: 'Згорнути',
   },
   generation: {
     tabs: {

web/i18n/vi-VN/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: 'Thử giải quyết',
     temporarySystemIssue: 'Xin lỗi, hệ thống đang gặp sự cố tạm thời.',
+    expand: 'Mở rộng',
+    collapse: 'Thu gọn',
   },
   generation: {
     tabs: {

web/i18n/zh-Hans/share-app.ts

@@ -30,6 +30,8 @@ const translation = {
     },
     tryToSolve: '尝试解决',
     temporarySystemIssue: '抱歉，临时系统问题。',
+    expand: '展开',
+    collapse: '折叠',
   },
   generation: {
     tabs: {

web/i18n/zh-Hant/share-app.ts

@@ -26,6 +26,8 @@ const translation = {
     },
     tryToSolve: '嘗試解決',
     temporarySystemIssue: '抱歉，臨時系統問題。',
+    expand: '展開',
+    collapse: '摺疊',
   },
   generation: {
     tabs: {

web/public/embed.js

@@ -12,6 +12,7 @@
   const buttonId = "dify-chatbot-bubble-button";
   const iframeId = "dify-chatbot-bubble-window";
   const config = window[configKey];
+  let isExpanded = false;
 
   // SVG icons for open and close states
   const svgIcons = `<svg id="openIcon" width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
@@ -22,6 +23,53 @@
     </svg>
     `;
 
+  
+  const originalIframeStyleText = `
+    position: absolute;
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+    top: unset;
+    right: var(--${buttonId}-right, 1rem); /* Align with dify-chatbot-bubble-button. */
+    bottom: var(--${buttonId}-bottom, 1rem); /* Align with dify-chatbot-bubble-button. */
+    left: unset;
+    width: 24rem;
+    max-width: calc(100vw - 2rem);
+    height: 43.75rem;
+    max-height: calc(100vh - 6rem);
+    border: none;
+    z-index: 2147483640;
+    overflow: hidden;
+    user-select: none;
+    transition-property: width, height;
+    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+    transition-duration: 150ms;
+  `
+
+  const expandedIframeStyleText = `
+    position: absolute;
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+    top: unset;
+    right: var(--${buttonId}-right, 1rem); /* Align with dify-chatbot-bubble-button. */
+    bottom: var(--${buttonId}-bottom, 1rem); /* Align with dify-chatbot-bubble-button. */
+    left: unset;
+    min-width: 24rem;
+    width: 48%;
+    max-width: calc(100vw - 2rem);
+    min-height: 43.75rem;
+    height: 88%;
+    max-height: calc(100vh - 6rem);
+    border: none;
+    z-index: 2147483640;
+    overflow: hidden;
+    user-select: none;
+    transition-property: width, height;
+    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+    transition-duration: 150ms;
+  `
+
   // Main function to embed the chatbot
   async function embedChatbot() {
     let isDragging = false
@@ -71,6 +119,7 @@
 
     const baseUrl =
       config.baseUrl || `https://${config.isDev ? "dev." : ""}udify.app`;
+    const targetOrigin = new URL(baseUrl).origin;
 
     // pre-check the length of the URL
     const iframeUrl = `${baseUrl}/chatbot/${config.token}?${params}`;
@@ -92,23 +141,7 @@
       iframe.title = "dify chatbot bubble window";
       iframe.id = iframeId;
       iframe.src = iframeUrl;
-      iframe.style.cssText = `
-        position: absolute;
-        display: flex;
-        flex-direction: column;
-        justify-content: space-between;
-        left: unset;
-        right: 0;
-        bottom: 0;
-        width: 24rem;
-        max-width: calc(100vw - 2rem);
-        height: 43.75rem;
-        max-height: calc(100vh - 6rem);
-        border: none;
-        z-index: 2147483640;
-        overflow: hidden;
-        user-select: none;
-      `;
+      iframe.style.cssText = originalIframeStyleText;
 
       return iframe;
     }
@@ -121,29 +154,70 @@
       const targetButton = document.getElementById(buttonId);
       if (targetIframe && targetButton) {
         const buttonRect = targetButton.getBoundingClientRect();
+        // We don't necessarily need iframeRect anymore with the center logic
 
-        const buttonInBottom = buttonRect.top - 5 > targetIframe.clientHeight;
+        const viewportCenterY = window.innerHeight / 2;
+        const buttonCenterY = buttonRect.top + buttonRect.height / 2;
 
-        if (buttonInBottom) {
-          targetIframe.style.bottom = "0px";
-          targetIframe.style.top = "unset";
+        if (buttonCenterY < viewportCenterY) {
+          targetIframe.style.top = `var(--${buttonId}-bottom, 1rem)`;
+          targetIframe.style.bottom = 'unset';
         } else {
-          targetIframe.style.bottom = "unset";
-          targetIframe.style.top = "0px";
+          targetIframe.style.bottom = `var(--${buttonId}-bottom, 1rem)`;
+          targetIframe.style.top = 'unset';
         }
 
-        const buttonInRight = buttonRect.right > targetIframe.clientWidth;
+        const viewportCenterX = window.innerWidth / 2;
+        const buttonCenterX = buttonRect.left + buttonRect.width / 2;
 
-        if (buttonInRight) {
-          targetIframe.style.right = "0";
-          targetIframe.style.left = "unset";
+        if (buttonCenterX < viewportCenterX) {
+          targetIframe.style.left = `var(--${buttonId}-right, 1rem)`;
+          targetIframe.style.right = 'unset';
         } else {
-          targetIframe.style.right = "unset";
-          targetIframe.style.left = 0;
+          targetIframe.style.right = `var(--${buttonId}-right, 1rem)`;
+          targetIframe.style.left = 'unset';
         }
       }
     }
 
+    function toggleExpand() {
+      isExpanded = !isExpanded;
+
+      const targetIframe = document.getElementById(iframeId);
+      if (!targetIframe) return;
+
+      if (isExpanded) {
+        targetIframe.style.cssText = expandedIframeStyleText;
+      } else {
+        targetIframe.style.cssText = originalIframeStyleText;
+      }
+      resetIframePosition();
+    }
+
+    window.addEventListener('message', (event) => {
+      if (event.origin !== targetOrigin) return;
+
+      const targetIframe = document.getElementById(iframeId);
+      if (!targetIframe || event.source !== targetIframe.contentWindow) return;
+
+      if (event.data.type === 'dify-chatbot-iframe-ready') {
+        targetIframe.contentWindow?.postMessage(
+          {
+            type: 'dify-chatbot-config',
+            payload: {
+              isToggledByButton: true,
+              isDraggable: !!config.draggable,
+            },
+          },
+          targetOrigin
+        );
+      }
+
+      if (event.data.type === 'dify-chatbot-expand-change') {
+        toggleExpand();
+      }
+    });
+
     // Function to create the chat button
     function createButton() {
       const containerDiv = document.createElement("div");

web/public/embed.min.js

@@ -1,20 +1,24 @@
-(()=>{let t="difyChatbotConfig",m="dify-chatbot-bubble-button",h="dify-chatbot-bubble-window",p=window[t];async function e(){let u=!1;if(p&&p.token){var e=new URLSearchParams({...await(async()=>{var e=p?.inputs||{};let n={};return await Promise.all(Object.entries(e).map(async([e,t])=>{n[e]=await o(t)})),n})(),...await(async()=>{var e=p?.systemVariables||{};let n={};return await Promise.all(Object.entries(e).map(async([e,t])=>{n["sys."+e]=await o(t)})),n})()});let t=`${p.baseUrl||`https://${p.isDev?"dev.":""}udify.app`}/chatbot/${p.token}?`+e;e=s();async function o(e){e=(new TextEncoder).encode(e),e=new Response(new Blob([e]).stream().pipeThrough(new CompressionStream("gzip"))).arrayBuffer(),e=new Uint8Array(await e);return btoa(String.fromCharCode(...e))}function s(){var e=document.createElement("iframe");return e.allow="fullscreen;microphone",e.title="dify chatbot bubble window",e.id=h,e.src=t,e.style.cssText=`
-        position: absolute;
-        display: flex;
-        flex-direction: column;
-        justify-content: space-between;
-        left: unset;
-        right: 0;
-        bottom: 0;
-        width: 24rem;
-        max-width: calc(100vw - 2rem);
-        height: 43.75rem;
-        max-height: calc(100vh - 6rem);
-        border: none;
-        z-index: 2147483640;
-        overflow: hidden;
-        user-select: none;
-      `,e}function d(){var e,t;window.innerWidth<=640||(e=document.getElementById(h),t=document.getElementById(m),e&&t&&((t=t.getBoundingClientRect()).top-5>e.clientHeight?(e.style.bottom="0px",e.style.top="unset"):(e.style.bottom="unset",e.style.top="0px"),t.right>e.clientWidth?(e.style.right="0",e.style.left="unset"):(e.style.right="unset",e.style.left=0)))}function n(){let n=document.createElement("div");Object.entries(p.containerProps||{}).forEach(([e,t])=>{"className"===e?n.classList.add(...t.split(" ")):"style"===e?"object"==typeof t?Object.assign(n.style,t):n.style.cssText=t:"function"==typeof t?n.addEventListener(e.replace(/^on/,"").toLowerCase(),t):n[e]=t}),n.id=m;var e=document.createElement("style"),e=(document.head.appendChild(e),e.sheet.insertRule(`
+(()=>{let t="difyChatbotConfig",h="dify-chatbot-bubble-button",m="dify-chatbot-bubble-window",y=window[t],a=!1,l=`
+    position: absolute;
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+    top: unset;
+    right: var(--${h}-right, 1rem); /* Align with dify-chatbot-bubble-button. */
+    bottom: var(--${h}-bottom, 1rem); /* Align with dify-chatbot-bubble-button. */
+    left: unset;
+    width: 24rem;
+    max-width: calc(100vw - 2rem);
+    height: 43.75rem;
+    max-height: calc(100vh - 6rem);
+    border: none;
+    z-index: 2147483640;
+    overflow: hidden;
+    user-select: none;
+    transition-property: width, height;
+    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
+    transition-duration: 150ms;
+  `;async function e(){let u=!1;if(y&&y.token){var e=new URLSearchParams({...await(async()=>{var e=y?.inputs||{};let n={};return await Promise.all(Object.entries(e).map(async([e,t])=>{n[e]=await i(t)})),n})(),...await(async()=>{var e=y?.systemVariables||{};let n={};return await Promise.all(Object.entries(e).map(async([e,t])=>{n["sys."+e]=await i(t)})),n})()}),n=y.baseUrl||`https://${y.isDev?"dev.":""}udify.app`;let o=new URL(n).origin,t=`${n}/chatbot/${y.token}?`+e;n=s();async function i(e){e=(new TextEncoder).encode(e),e=new Response(new Blob([e]).stream().pipeThrough(new CompressionStream("gzip"))).arrayBuffer(),e=new Uint8Array(await e);return btoa(String.fromCharCode(...e))}function s(){var e=document.createElement("iframe");return e.allow="fullscreen;microphone",e.title="dify chatbot bubble window",e.id=m,e.src=t,e.style.cssText=l,e}function d(){var e,t,n;window.innerWidth<=640||(e=document.getElementById(m),t=document.getElementById(h),e&&t&&(t=t.getBoundingClientRect(),n=window.innerHeight/2,t.top+t.height/2<n?(e.style.top=`var(--${h}-bottom, 1rem)`,e.style.bottom="unset"):(e.style.bottom=`var(--${h}-bottom, 1rem)`,e.style.top="unset"),t.left+t.width/2<window.innerWidth/2?(e.style.left=`var(--${h}-right, 1rem)`,e.style.right="unset"):(e.style.right=`var(--${h}-right, 1rem)`,e.style.left="unset")))}function r(){let n=document.createElement("div");Object.entries(y.containerProps||{}).forEach(([e,t])=>{"className"===e?n.classList.add(...t.split(" ")):"style"===e?"object"==typeof t?Object.assign(n.style,t):n.style.cssText=t:"function"==typeof t?n.addEventListener(e.replace(/^on/,"").toLowerCase(),t):n[e]=t}),n.id=h;var e=document.createElement("style"),e=(document.head.appendChild(e),e.sheet.insertRule(`
         #${n.id} {
           position: fixed;
           bottom: var(--${n.id}-bottom, 1rem);
@@ -29,10 +33,10 @@
           cursor: pointer;
           z-index: 2147483647;
         }
-      `),document.createElement("div"));function t(){var e;u||((e=document.getElementById(h))?(e.style.display="none"===e.style.display?"block":"none","none"===e.style.display?y("open"):y("close"),"none"===e.style.display?document.removeEventListener("keydown",l):document.addEventListener("keydown",l),d()):(n.appendChild(s()),d(),this.title="Exit (ESC)",y("close"),document.addEventListener("keydown",l)))}if(e.style.cssText="position: relative; display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; z-index: 2147483647;",e.innerHTML=`<svg id="openIcon" width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
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