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import { TemplateResult, html, css, PropertyValues, nothing } from 'lit';
import { FieldElement } from './FieldElement';
import { property } from 'lit/decorators.js';
import { Attachment, CustomEventType, Language, Shortcut } from '../interfaces';
import { Icon } from '../Icons';
import { DEFAULT_MEDIA_ENDPOINT } from '../utils';
import { Select } from './select/Select';
import { MessageEditor } from './MessageEditor';
import { ShortcutList } from '../list/ShortcutList';
import { setCaretOffset } from '../excellent/caret-utils';
export interface ComposeValue {
text: string;
attachments: { uuid: string }[];
quick_replies: string[];
optin: string;
template: string;
variables: string[];
}
export class Compose extends FieldElement {
static get styles() {
return css`
${super.styles}
:host {
border-top-right-radius: var(--curvature);
border-top-left-radius: var(--curvature);
}
.container {
display: flex;
flex-direction: column;
justify-content: space-between;
position: relative;
border-radius: var(--compose-curvature, var(--curvature-widget));
background: var(--color-widget-bg);
border: var(--compose-border, 1px solid var(--color-widget-border));
transition: all ease-in-out var(--transition-speed);
box-shadow: var(--compose-shadow, var(--widget-box-shadow));
caret-color: var(--input-caret);
}
.container:focus-within {
border-color: var(--color-focus);
box-shadow: var(
--widget-box-shadow-focused,
0 0 0 3px rgba(0, 123, 255, 0.25)
);
}
.editor-wrapper {
--color-widget-border: none;
--widget-box-shadow: none;
--widget-box-shadow-focused: none;
--temba-textinput-padding: 1em 1em;
flex-grow: 1;
display: flex;
flex-direction: column;
overflow: hidden;
}
.editor-wrapper temba-message-editor {
flex-grow: 1;
--color-widget-border: transparent;
--widget-box-shadow: none;
--widget-box-shadow-focused: none;
--color-focus: transparent;
}
.language {
margin-bottom: 0.6em;
display: block;
}
.send-error {
color: rgba(250, 0, 0, 0.75);
font-size: var(--help-text-size);
padding: 0.5em;
}
.quick-replies {
margin: 0.2em;
}
.optins {
margin: 0.2em;
}
.templates {
margin: 0.2em;
}
temba-accordion {
margin-top: 0.5em;
}
.shortcut-overlay {
position: fixed;
margin-bottom: 4px;
display: flex;
flex-direction: row;
align-items: stretch;
--options-block-shadow: none;
--curvature-widget: 0px;
--color-options-bg: #fff;
border: 1px solid var(--color-widget-border);
border-radius: 6px;
background: var(--color-widget-bg, #fff);
box-shadow: var(--options-shadow);
z-index: 1000003;
overflow: hidden;
}
temba-shortcuts {
flex-grow: 1;
}
.shortcut-icon {
color: #888;
background: rgba(0, 0, 0, 0.04);
border-radius: 8px;
transition:
background-color 0.2s ease-in-out,
color 0.2s ease-in-out;
}
.shortcut-icon:hover {
color: var(--color-text-dark);
background: rgba(0, 0, 0, 0.08);
}
`;
}
@property({ type: Number })
index = 1;
@property({ type: Number })
maxAttachments = 3;
@property({ type: Number })
maxLength = 640;
@property({ type: Number })
maxQuickReplies = 10;
@property({ type: Boolean })
completion: boolean;
@property({ type: Boolean })
attachments: boolean;
@property({ type: Boolean })
quickReplies: boolean;
@property({ type: Boolean })
optIns: boolean;
@property({ type: Boolean })
templates: boolean;
@property({ type: Boolean, attribute: 'template-session' })
templateSession = false;
@property({ type: String, attribute: 'template-warning' })
templateWarning: string;
@property({ type: Boolean })
counter: boolean;
@property({ type: Boolean })
autogrow: boolean;
@property({ type: Number, attribute: 'min-height' })
minHeight = 150;
@property({ type: Boolean })
shortcuts: boolean;
@property({ type: String })
currentText = '';
@property({ type: String })
initialText = '';
@property({ type: String })
accept = ''; //e.g. ".xls,.xlsx"
@property({ type: String, attribute: false })
endpoint = DEFAULT_MEDIA_ENDPOINT;
@property({ type: Boolean, attribute: false })
uploading: boolean;
@property({ type: Array })
languages: Language[] = [];
@property({ type: Array })
currentAttachments: Attachment[] = [];
@property({ type: Array })
currentQuickReplies: { name: string; value: string }[] = [];
@property({ type: Array })
currentOptin: { name: string; uuid: string }[] = [];
@property({ type: Array })
variables: string[] = [];
@property({ type: String })
template: string;
@property({ type: Object })
currentTemplate: { name: string; uuid: string };
// locale for the template
@property({ type: String })
locale: string;
@property({ type: String })
optinEndpoint = '/api/v2/optins.json';
@property({ type: String })
templateEndpoint = '/api/internal/templates.json';
@property({ type: Boolean, attribute: false })
empty = true;
@property({ type: Boolean, attribute: 'widget_only' })
widgetOnly: boolean;
@property({ type: Array })
errors: string[];
@property({ type: Object })
langValues: {
[lang: string]: {
text: string;
attachments: Attachment[];
quick_replies: string[];
optin?: { name: string; uuid: string };
template?: string;
variables?: string[];
locale?: string;
};
} = {};
@property({ type: String })
currentLanguage = 'und';
@property({ type: Boolean })
hasPendingText = false;
@property({ type: Object })
activeShortcut: Shortcut;
@property({ type: Boolean, attribute: false })
showShortcuts = false;
private shortcutFilter: string = null;
private shortcutViaIcon = false;
private lastCaretPosition: number = 0;
public constructor() {
super();
}
private isBaseLanguage(): boolean {
return (
this.currentLanguage == 'und' ||
this.currentLanguage == this.languages[0].iso
);
}
private hasTranslation(iso: string): boolean {
const entry = this.langValues?.[iso];
if (!entry) return false;
return !!(
(entry.text && entry.text.trim().length > 0) ||
(entry.attachments && entry.attachments.length > 0) ||
(entry.quick_replies && entry.quick_replies.length > 0)
);
}
private getSortedLanguages(): Language[] {
if (this.languages.length === 0) return [];
const [base, ...rest] = this.languages;
const sorted = [...rest].sort((a, b) => {
const aTranslated = this.hasTranslation(a.iso);
const bTranslated = this.hasTranslation(b.iso);
if (aTranslated !== bTranslated) {
return aTranslated ? -1 : 1;
}
return 0;
});
return [base, ...sorted];
}
private renderLanguageOption = (option: Language): TemplateResult => {
const isBase =
this.languages.length > 0 && option.iso === this.languages[0].iso;
const badgeBase =
'display:inline-flex; align-items:center; border-radius:999px; font-size:10px; font-weight:700; line-height:1;';
let badge: TemplateResult;
if (isBase) {
badge = html`<span
style="${badgeBase} background:rgba(47, 63, 82, 0.12); color:#2f3f52; padding:3px 7px;"
>Original</span
>`;
} else if (this.hasTranslation(option.iso)) {
badge = html`<span
style="${badgeBase} background:rgba(26, 127, 55, 0.15); color:#1a7f37; padding:3px 7px;"
>Translated</span
>`;
} else {
badge = html`<span
style="${badgeBase} background:transparent; color:#8a94a1; border:1px solid #c2c8d0; padding:2px 6px;"
>Missing</span
>`;
}
return html`
<div
style="display:flex; align-items:center; justify-content:space-between; gap:8px; flex:1; padding:2px 8px;"
>
<span>${option.name}</span>
${badge}
</div>
`;
};
public willUpdate(changed: PropertyValues): void {
super.willUpdate(changed);
if (changed.has('languages') && this.languages.length > 0) {
this.currentLanguage = this.languages[0].iso;
}
if (changed.has('value')) {
this.langValues = this.getDeserializedValue() || {};
this.variables = this.langValues[this.currentLanguage]?.variables || [];
this.template = this.langValues[this.currentLanguage]?.template || null;
}
if (changed.has('currentLanguage') && this.langValues) {
let langValue = {
text: '',
attachments: [],
quick_replies: []
};
if (this.currentLanguage in this.langValues) {
langValue = this.langValues[this.currentLanguage];
}
this.currentText = langValue.text || '';
this.initialText = langValue.text || '';
this.currentAttachments = langValue.attachments || [];
this.currentQuickReplies = (langValue.quick_replies || []).map(
(value) => {
return { name: value, value };
}
);
this.currentOptin = langValue['optin'] ? [langValue['optin']] : [];
}
if (
this.langValues &&
(changed.has('currentText') ||
changed.has('currentAttachments') ||
changed.has('currentQuickReplies') ||
changed.has('currentOptin') ||
changed.has('currentTemplate') ||
changed.has('variables'))
) {
this.checkIfEmpty();
const trimmed = this.currentText ? this.currentText.trim() : '';
if (
trimmed ||
(this.currentAttachments || []).length > 0 ||
this.currentQuickReplies.length > 0 ||
this.currentOptin.length > 0 ||
this.variables.length > 0
) {
this.langValues[this.currentLanguage] = {
text: trimmed,
attachments: this.currentAttachments,
quick_replies: this.currentQuickReplies.map((option) => option.value),
optin: this.currentOptin.length > 0 ? this.currentOptin[0] : null,
template: this.currentTemplate ? this.currentTemplate.uuid : null,
variables: this.variables,
locale: this.locale
};
} else {
delete this.langValues[this.currentLanguage];
}
this.setValue(this.langValues);
}
}
connectedCallback() {
super.connectedCallback();
// Make the compose host focusable so clicks on it set activeElement
if (!this.hasAttribute('tabindex')) {
this.setAttribute('tabindex', '-1');
}
this.addEventListener('keydown', this.handleHostKeyDown as EventListener);
}
disconnectedCallback() {
super.disconnectedCallback();
this.removeEventListener(
'keydown',
this.handleHostKeyDown as EventListener
);
}
private handleShortcutIconClick() {
if (this.showShortcuts) {
this.showShortcuts = false;
return;
}
this.shortcutFilter = '';
this.shortcutViaIcon = true;
this.showShortcuts = true;
this.updateComplete.then(() => {
const shortcuts = this.shadowRoot.querySelector(
'temba-shortcuts'
) as ShortcutList;
if (shortcuts) {
shortcuts.filter = '';
shortcuts.showSearch = true;
shortcuts.updateComplete.then(() => {
shortcuts.focusSearch();
});
}
});
}
private handleHostKeyDown = (evt: KeyboardEvent) => {
if (evt.key === 'Escape' && this.showShortcuts) {
evt.preventDefault();
evt.stopPropagation();
this.showShortcuts = false;
return;
}
if (evt.key === 'Enter' && !evt.shiftKey) {
if (this.showShortcuts) {
return;
}
const editor = this.getMessageEditor();
if (editor) {
const richEdit = editor.getRichEditor();
if (richEdit && richEdit.hasVisibleOptions()) {
return;
}
}
evt.preventDefault();
evt.stopPropagation();
this.triggerSend();
}
};
public firstUpdated(changes: PropertyValues): void {
super.firstUpdated(changes);
this.setFocusOnEditor();
}
public updated(changes: Map<string, any>): void {
super.updated(changes);
if (changes.has('currentLanguage') && this.langValues) {
this.setFocusOnEditor();
const editor = this.getMessageEditor();
if (editor) {
const richEdit = editor.getRichEditor();
if (richEdit) {
const targetText = this.initialText;
const targetLanguage = this.currentLanguage;
richEdit.value = targetText;
const editable = richEdit.inputElement;
if (editable) {
window.setTimeout(() => {
if (this.currentLanguage === targetLanguage) {
setCaretOffset(editable, targetText.length);
}
}, 0);
}
}
}
}
if (
(this.langValues &&
(changes.has('currentText') ||
changes.has('currentAttachments') ||
changes.has('currentQuickReplies'))) ||
changes.has('currentOptin') ||
changes.has('currentTemplate') ||
changes.has('variables')
) {
this.fireCustomEvent(CustomEventType.ContentChanged, this.langValues);
}
}
private handleLoading(event: CustomEvent) {
this.uploading = event.detail.loading;
}
private handleAttachmentsChanged(event: CustomEvent) {
if (event.detail && event.detail.attachments) {
this.currentAttachments = event.detail.attachments;
}
this.requestUpdate();
}
private setFocusOnEditor(): void {
const editor = this.getMessageEditor();
if (editor) {
window.setTimeout(() => {
editor.focus();
}, 0);
}
}
public reset(): void {
const editor = this.getMessageEditor();
if (editor) {
const richEdit = editor.getRichEditor();
if (richEdit) {
const textInput = richEdit.getTextInput();
textInput.updateValue('');
richEdit.fireEvent('change');
}
this.initialText = '';
this.currentText = '';
this.currentQuickReplies = [];
this.currentAttachments = [];
this.showShortcuts = false;
}
}
private handleQuickReplyChange() {
this.requestUpdate('currentQuickReplies');
}
private handleOptInChange(event: InputEvent) {
this.currentOptin = (event.target as any).values;
this.requestUpdate('currentOptin');
}
private handleEditorChange(evt: Event) {
const richEdit = (evt.target as MessageEditor).getRichEditor();
if (!richEdit) return;
this.currentText = richEdit.value || '';
this.hasPendingText = this.currentText.length > 0;
// Track caret for shortcut icon click
this.lastCaretPosition = richEdit.getCaretPosition();
// Detect / at beginning of line for shortcuts
if (this.shortcuts) {
const text = this.currentText;
const cursor = richEdit.getCaretPosition();
const lineStart = text.lastIndexOf('\n', cursor - 1) + 1;
const line = text.substring(lineStart, cursor);
if (line.startsWith('/')) {
if (!this.showShortcuts) {
this.shortcutViaIcon = false;
}
this.shortcutFilter = line.substring(1);
this.showShortcuts = true;
this.updateComplete.then(() => {
const shortcuts = this.shadowRoot.querySelector(
'temba-shortcuts'
) as ShortcutList;
if (shortcuts) {
shortcuts.showSearch = false;
shortcuts.filter = this.shortcutFilter;
}
});
} else {
this.showShortcuts = false;
}
}
}
public checkIfEmpty() {
const chatboxEmpty = this.currentText.trim().length === 0;
const attachmentsEmpty = this.currentAttachments.length === 0;
if (this.attachments) {
this.empty = chatboxEmpty && attachmentsEmpty;
} else {
this.empty = chatboxEmpty;
}
}
private handleKeyDown(evt: KeyboardEvent) {
if (evt.key === 'Backspace' && this.shortcuts && this.showShortcuts) {
// Check if we're deleting the / trigger
const editor = this.getMessageEditor();
if (editor) {
const richEdit = editor.getRichEditor();
if (richEdit) {
const text = richEdit.getText();
const cursor = richEdit.getCaretPosition();
const lineStart = text.lastIndexOf('\n', cursor - 1) + 1;
const line = text.substring(lineStart, cursor);
if (line === '/') {
this.showShortcuts = false;
}
}
}
}
}
public triggerSend() {
this.checkIfEmpty();
if (!this.empty) {
this.fireCustomEvent(CustomEventType.Submitted, {
langValues: this.langValues
});
}
}
private handleLanguageChange(evt: Event) {
const select = evt.target as Select<any>;
this.currentLanguage = select.values[0].iso;
}
private getShortcutOverlayStyle(): string {
const container = this.shadowRoot?.querySelector('.container');
if (!container) return '';
const rect = container.getBoundingClientRect();
const margin = 16;
const bottom = window.innerHeight - rect.top;
const maxHeight = rect.top - margin;
return `left: ${rect.left}px; bottom: ${bottom}px; width: ${rect.width}px; max-height: ${maxHeight}px;`;
}
private getMessageEditor(): MessageEditor {
return this.shadowRoot.querySelector(
'temba-message-editor'
) as MessageEditor;
}
public handleShortcutSelection(event: CustomEvent) {
this.activeShortcut = event.detail.selected;
const editor = this.getMessageEditor();
if (!editor) return;
const richEdit = editor.getRichEditor();
if (!richEdit) return;
const text = richEdit.getText();
const cursor = richEdit.getCaretPosition() || this.lastCaretPosition;
// Find current line
const lineStart = text.lastIndexOf('\n', cursor - 1) + 1;
let lineEnd = text.indexOf('\n', lineStart);
if (lineEnd === -1) lineEnd = text.length;
const line = text.substring(lineStart, lineEnd);
// Build the new text with shortcut replacing the /command line
let newText: string;
let newCursor: number;
if (line.startsWith('/')) {
const before = text.substring(0, lineStart);
const after = text.substring(lineEnd);
newText = before + this.activeShortcut.text + after;
newCursor = lineStart + this.activeShortcut.text.length;
} else {
newText =
text.substring(0, cursor) +
this.activeShortcut.text +
text.substring(cursor);
newCursor = cursor + this.activeShortcut.text.length;
}
// Update the rendered content and fire change so the char counter
// and form value pick up the new text
const textInput = richEdit.getTextInput();
textInput.updateValue(newText);
richEdit.fireEvent('change');
// Restore focus and place cursor at end of inserted text
const editableDiv = richEdit.inputElement;
if (editableDiv) {
editableDiv.focus();
setCaretOffset(editableDiv, newCursor);
}
this.showShortcuts = false;
}
private handleTemplateChanged(evt: CustomEvent) {
this.currentTemplate = evt.detail.template;
this.locale = evt.detail.translation?.locale;
this.requestUpdate();
}
private handleTemplateVariablesChanged(evt: CustomEvent) {
this.variables = [...evt.detail.variables];
}
public render(): TemplateResult {
return this.renderField();
}
protected renderWidget(): TemplateResult {
const showOptins = this.optIns && this.isBaseLanguage();
const showTemplates = this.templates && this.isBaseLanguage();
const hasAccordionSections =
this.quickReplies || showOptins || showTemplates;
return html`
<div>
${this.languages.length > 1
? html`<temba-select
@change=${this.handleLanguageChange}
class="language"
name="language"
.staticOptions=${this.getSortedLanguages()}
.renderOption=${this.renderLanguageOption}
valueKey="iso"
>
</temba-select>`
: null}
<div class="container">
<div class="editor-wrapper">
<temba-message-editor
.value=${this.initialText}
.attachments=${this.currentAttachments}
attachment-format="object"
accept=${this.accept}
max-attachments=${this.maxAttachments}
endpoint=${this.endpoint}
placeholder="Write something here"
gsm
textarea
minHeight=${this.minHeight}
?autogrow=${this.autogrow}
?disableCompletion=${!this.completion}
counter=${this.counter ? 'true' : nothing}
@change=${this.handleEditorChange}
@keydown=${this.handleKeyDown}
@temba-content-changed=${this.handleAttachmentsChanged}
@loading=${this.handleLoading}
>
${this.shortcuts
? html`<temba-icon
slot="icons"
class="shortcut-icon"
name=${Icon.shortcut}
size="1"
@click=${this.handleShortcutIconClick}
></temba-icon>`
: null}
</temba-message-editor>
</div>
${this.shortcuts && this.showShortcuts
? html`<div
class="shortcut-overlay"
style=${this.getShortcutOverlayStyle()}
@mousedown=${(e: MouseEvent) => e.preventDefault()}
>
<temba-shortcuts
@temba-selection=${this.handleShortcutSelection}
></temba-shortcuts>
</div>`
: null}
</div>
${hasAccordionSections
? html`<temba-accordion>
${this.quickReplies
? html`<temba-accordion-section
label="Quick Replies"
.count=${this.currentQuickReplies.length}
>
<temba-select
@change=${this.handleQuickReplyChange}
.values=${this.currentQuickReplies}
maxItems=${this.maxQuickReplies}
maxItemsText="You can only add ${this
.maxQuickReplies} Quick Replies"
class="quick-replies"
tags
multi
searchable
expressions
placeholder="Add Quick Reply"
></temba-select>
</temba-accordion-section>`
: null}
${showTemplates
? html`<temba-accordion-section
label="WhatsApp Template"
?checked=${!!this.currentTemplate}
?hasError=${this.errors &&
!!this.errors.find((error) => error.includes('template'))}
>
<temba-template-editor
class="templates"
?session=${this.templateSession}
@temba-context-changed=${this.handleTemplateChanged}
@temba-content-changed=${this
.handleTemplateVariablesChanged}
template=${this.template}
variables=${JSON.stringify(this.variables)}
url=${this.templateEndpoint}
lang=${this.currentLanguage}
template-warning=${this.templateWarning || nothing}
>
</temba-template-editor>
</temba-accordion-section>`
: null}
${showOptins
? html`<temba-accordion-section
label="Facebook Opt-in"
?checked=${this.currentOptin.length > 0}
>
<temba-select
@change=${this.handleOptInChange}
.values=${this.currentOptin}
endpoint="${this.optinEndpoint}"
valueKey="uuid"
class="optins"
searchable
clearable
placeholder="Select an opt-in to use for Facebook (optional)"
></temba-select>
</temba-accordion-section>`
: null}
</temba-accordion>`
: null}
</div>
`;
}
}
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