Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import { RapidElement } from '../RapidElement';
import { splitSMS } from './sms';
import { property } from 'lit/decorators.js';
import { messageParser } from '../excellent/helpers';
export const MAX_GSM_SINGLE = 160;
export const MAX_GSM_MULTI = 153;
export const MAX_UNICODE_SINGLE = 70;
export const MAX_UNICODE_MULTI = 67;
export const COMPLETION_HELP = 'Tab to complete, enter to select';
export const GSM: { [key: string]: number } = {
// char: charCode
0: 48,
1: 49,
2: 50,
3: 51,
4: 52,
5: 53,
6: 54,
7: 55,
8: 56,
9: 57,
'\n': 10,
'\f': 12,
'\r': 13,
' ': 32,
'!': 33,
'"': 34,
'#': 35,
$: 36,
'%': 37,
'&': 38,
"'": 39,
'(': 40,
')': 41,
'*': 42,
'+': 43,
',': 44,
'-': 45,
'.': 46,
'/': 47,
':': 58,
';': 59,
'<': 60,
'=': 61,
'>': 62,
'?': 63,
'@': 64,
A: 65,
B: 66,
C: 67,
D: 68,
E: 69,
F: 70,
G: 71,
H: 72,
I: 73,
J: 74,
K: 75,
L: 76,
M: 77,
N: 78,
O: 79,
P: 80,
Q: 81,
R: 82,
S: 83,
T: 84,
U: 85,
V: 86,
W: 87,
X: 88,
Y: 89,
Z: 90,
'[': 91,
'\\': 92,
']': 93,
'^': 94,
_: 95,
a: 97,
b: 98,
c: 99,
d: 100,
e: 101,
f: 102,
g: 103,
h: 104,
i: 105,
j: 106,
k: 107,
l: 108,
m: 109,
n: 110,
o: 111,
p: 112,
q: 113,
r: 114,
s: 115,
t: 116,
u: 117,
v: 118,
w: 119,
x: 120,
y: 121,
z: 122,
'{': 123,
'|': 124,
'}': 125,
'~': 126,
'¡': 161,
'£': 163,
'¤': 164,
'¥': 165,
'§': 167,
'¿': 191,
Ä: 196,
Å: 197,
Æ: 198,
Ç: 199,
É: 201,
Ñ: 209,
Ö: 214,
Ø: 216,
Ü: 220,
ß: 223,
à: 224,
ä: 228,
å: 229,
æ: 230,
è: 232,
é: 233,
ì: 236,
ñ: 241,
ò: 242,
ö: 246,
ø: 248,
ù: 249,
ü: 252,
Γ: 915,
Δ: 916,
Θ: 920,
Λ: 923,
Ξ: 926,
Π: 928,
Σ: 931,
Φ: 934,
Ψ: 936,
Ω: 937,
'€': 8364
};
export const isGSM = (char: string): boolean => {
// eslint-disable-next-line no-prototype-builtins
return GSM.hasOwnProperty(char);
};
export const getExtendedCharacters = (text: string): string[] => {
const extended: { [ch: string]: boolean } = {};
for (const ch of text) {
if (!isGSM(ch)) {
extended[ch] = true;
}
}
return Object.keys(extended);
};
export class CharCount extends RapidElement {
static get styles() {
return css`
:host {
overflow: visible;
}
:host::after {
content: '';
clear: both;
display: table;
}
.counter {
float: right;
text-align: right;
position: relative;
}
.extended {
font-size: 14px;
display: flex;
margin-top: 4px;
}
.extended-char {
border: 1px solid #e6e6e6;
border-radius: var(--curvature-widget);
padding: 4px;
text-align: center;
line-height: 20px;
margin-right: 4px;
}
.summary {
width: 180px;
padding: 8px 12px;
font-size: 12px;
background: white;
border-radius: var(--curvature-widget);
overflow: hidden;
opacity: 0.3;
transform: scale(0.7);
box-shadow: var(--dropdown-shadow);
transition: transform cubic-bezier(0.71, 0.18, 0.61, 1.33)
var(--transition-speed);
visibility: hidden;
text-align: left;
position: fixed;
z-index: 1000003;
}
.fine-print {
margin-top: 8px;
margin-left: -12px;
margin-right: -12px;
margin-bottom: -8px;
padding: 8px 12px;
color: #999;
background: #f5f5f5;
font-size: 10px;
}
.extended-warning {
margin-top: 8px;
}
.note {
font-weight: 600;
display: inline-block;
margin-right: 2px;
}
.counts {
cursor: pointer;
transition: all cubic-bezier(0.71, 0.18, 0.61, 1.33) 200ms;
transform: scale(0.9);
display: inline-block;
padding: 2px 6px;
border-radius: var(--curvature);
margin-top: var(--temba-charcount-counts-margin-top);
background: var(--temba-charcount-background, transparent);
color: var(--temba-charcount-color, inherit);
}
.segments {
font-size: 85%;
display: inline-block;
}
.attention .counts {
transform: scale(0.95);
background: rgba(220, 53, 69, 0.1);
color: var(--color-error, #dc3545);
font-weight: 600;
}
.counter:hover .summary {
opacity: 1;
transform: scale(1);
visibility: visible;
}
`;
}
@property({ type: String })
text: string;
@property({ type: Boolean, attribute: 'no-expressions' })
noExpressions = false;
@property({ type: Number })
count: number;
@property({ type: Number, attribute: false })
segments: number;
@property({ type: Object, attribute: false })
extended: string[] = [];
public willUpdate(changed: PropertyValues) {
super.willUpdate(changed);
if (changed.has('text')) {
this.updateSegments();
}
}
/** Replaces all Excellent expressions with a 10-char placeholder estimate. */
private replaceExpressions(text: string): string {
const expressions = messageParser.findExpressions(text);
if (expressions.length === 0) return text;
const placeholder = 'x'.repeat(10);
let result = '';
let lastEnd = 0;
for (const expr of expressions) {
result += text.substring(lastEnd, expr.start) + placeholder;
lastEnd = expr.end;
}
result += text.substring(lastEnd);
return result;
}
private updateSegments() {
const estimated = this.noExpressions
? this.text
: this.replaceExpressions(this.text);
const sms = splitSMS(estimated);
this.count = estimated.length;
this.segments = sms.parts.length;
this.extended = getExtendedCharacters(estimated);
}
private handleCounterMouseEnter(e: MouseEvent) {
const counter = e.currentTarget as HTMLElement;
const summary = counter.querySelector('.summary') as HTMLElement;
if (!summary) return;
// Use margin-based positioning so it works both in normal contexts
// and inside CSS transform ancestors (where fixed acts like absolute)
summary.style.marginLeft = `${counter.offsetWidth - summary.offsetWidth}px`;
summary.style.marginTop = '4px';
}
public render(): TemplateResult {
const hasExpressions =
!this.noExpressions && this.text && this.text.indexOf('@') > -1;
let segments = html`.`;
if (this.segments > 1) {
segments = html`and will use ${hasExpressions ? html`at least` : null}
<b>${this.segments} messages</b> to send over SMS.`;
} else {
segments = html`and will use ${hasExpressions ? html`at least` : null} one
message to send over SMS.`;
}
let extended = null;
if (this.extended.length > 0 && (this.segments > 1 || hasExpressions)) {
extended = this.extended.map(
(ch: string) => html`<div class="extended-char">${ch}</div>`
);
extended = html`
<div class="extended-warning">
Some characters require more space over SMS. To save on fees, consider
replacing them.
<div class="extended">${extended}</div>
</div>
`;
}
const summary =
this.count > 1
? html` <div class="summary">
This message is <b>${this.count} characters</b>
${segments} ${extended}
${hasExpressions
? html`
<div class="fine-print">
<div class="note">NOTE</div>
Expressions are estimated at 10 characters each. Actual
message count may vary when sent over SMS.
</div>
`
: null}
</div>`
: null;
const attention =
this.segments > 2 || (this.segments === 2 && this.extended.length > 0);
return html`<div class="counter${
attention ? ' attention' : ''
}" @mouseenter=${this.handleCounterMouseEnter}><div class="counts">${this.count}${
this.segments > 1 || hasExpressions
? html`<div class="segments">
/ ${this.segments}${hasExpressions ? html`+` : null}
<div></div>
</div>`
: null
}</div> ${summary}</div></div>`;
}
}
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