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702@import "./textarea.vars";
// Textarea
// --------------------------------------------------
:host {
/**
* @prop --background: Background of the textarea
*
* @prop --border-radius: Border radius of the textarea
* @prop --border-color: Color of the border below the textarea when using helper text, error text, or counter
* @prop --border-radius: Radius of the textarea border. A large radius may display unevenly when using fill="outline"; if needed, use shape="round" instead or increase --padding-start.
* @prop --border-style: Style of the border below the textarea when using helper text, error text, or counter
* @prop --border-width: Width of the border below the textarea when using helper text, error text, or counter
*
* @prop --color: Color of the text
*
* @prop --placeholder-color: Color of the placeholder text
* @prop --placeholder-font-style: Style of the placeholder text
* @prop --placeholder-font-weight: Weight of the placeholder text
* @prop --placeholder-opacity: Opacity of the placeholder text
*
* @prop --highlight-height: The height of the highlight on the textarea. Only applies to md mode.
* @prop --highlight-color-focused: The color of the highlight on the textarea when focused
* @prop --highlight-color-valid: The color of the highlight on the textarea when valid
* @prop --highlight-color-invalid: The color of the highlight on the textarea when invalid
*
* @prop --padding-top: Top padding of the textarea
* @prop --padding-end: Right padding if direction is left-to-right, and left padding if direction is right-to-left of the textarea
* @prop --padding-bottom: Bottom padding of the textarea
* @prop --padding-start: Left padding if direction is left-to-right, and right padding if direction is right-to-left of the textarea
*/
--background: initial;
--color: initial;
--placeholder-color: initial;
--placeholder-font-style: initial;
--placeholder-font-weight: initial;
--placeholder-opacity: #{$placeholder-opacity};
--padding-top: 0;
--padding-end: 0;
--padding-bottom: #{$textarea-padding-bottom};
--padding-start: 0;
--border-radius: 0;
--border-style: solid;
--highlight-color-focused: #{ion-color(primary, base)};
--highlight-color-valid: #{ion-color(success, base)};
--highlight-color-invalid: #{ion-color(danger, base)};
/**
* This is a private API that is used to switch
* out the highlight color based on the state
* of the component without having to write
* different selectors for different fill variants.
*/
--highlight-color: var(--highlight-color-focused);
display: block;
position: relative;
width: 100%;
min-height: 44px;
color: var(--color);
font-family: $font-family-base;
z-index: $z-index-item-input;
box-sizing: border-box;
}
// Textarea Wrapper
// ----------------------------------------------------------------
/**
* Since the label sits on top of the element,
* the component needs to be taller otherwise the
* label will appear too close to the textarea text.
* Also, floating and stacked labels should not
* push the label down since it it
* sits on top of the textarea.
*/
:host(.textarea-label-placement-floating),
:host(.textarea-label-placement-stacked) {
--padding-top: 0px;
min-height: 56px;
}
/**
* When the cols property is set we should
* respect that width instead of defaulting
* to taking up the entire line.
* Requires both the cols and autoGrow
* properties to be reflected as attributes
* on the host.
*
* cols does not work with autoGrow because
* autoGrow would prevent line breaks from naturally
* occurring until the textarea takes up the entire line width.
*/
:host([cols]:not([auto-grow])) {
width: fit-content;
}
:host(.ion-color) {
--highlight-color-focused: #{current-color(base)};
background: initial;
}
// Textarea Within An Item
// --------------------------------------------------
:host-context(ion-item) {
align-self: baseline;
}
:host-context(ion-item)[slot="start"],
:host-context(ion-item)[slot="end"] {
width: auto;
}
// Native Textarea
// --------------------------------------------------
.native-textarea {
// Browsers may add a default margin to the textarea
@include margin(0);
@include padding(0, 0, 0, 0);
display: block;
position: relative;
flex: 1;
width: 100%;
max-width: 100%;
max-height: 100%;
border: 0;
outline: none;
background: transparent;
white-space: pre-wrap;
/**
* This ensures the textarea
* remains on top of any decoration
* that we render (particularly the
* outline border when fill="outline").
* If we did not do this then Axe would
* be unable to determine the color
* contrast of the textarea.
*/
z-index: 1;
box-sizing: border-box;
resize: none;
appearance: none;
&::placeholder {
@include padding(0);
color: var(--placeholder-color);
font-family: inherit;
font-style: var(--placeholder-font-style);
font-weight: var(--placeholder-font-weight);
opacity: var(--placeholder-opacity);
}
}
.native-textarea {
color: inherit;
font-family: inherit;
font-size: inherit;
font-style: inherit;
font-weight: inherit;
letter-spacing: inherit;
text-align: inherit;
text-decoration: inherit;
text-indent: inherit;
text-overflow: inherit;
text-transform: inherit;
grid-area: 1 / 1 / 2 / 2;
word-break: break-word;
}
// Input Cover: Unfocused
// --------------------------------------------------
// The input cover is the div that actually receives the
// tap/click event when scroll assist is configured to true.
// This make it so the native input element is not clickable.
// This will only show when the scroll assist is configured
// otherwise the .input-cover will not be rendered at all
// The input cover is not clickable when the input is disabled
.cloned-input {
position: absolute;
top: 0;
bottom: 0;
// Reset height since absolute positioning with top/bottom handles sizing
height: auto;
max-height: none;
pointer-events: none;
}
/**
* The cloned input needs to be disabled on
* Android otherwise the viewport will still
* shift when running scroll assist.
*/
.cloned-input:disabled {
opacity: 1;
}
:host([auto-grow]) .cloned-input {
// Workaround for webkit rendering issue with scroll assist.
// When cloning the textarea and scrolling into view,
// a white box is rendered from the difference in height
// from the auto grow container.
// This change forces the cloned input to match the true
// height of the textarea container.
height: 100%;
}
:host([auto-grow]) .native-textarea {
overflow: hidden;
}
// Textarea Wrapper
// ----------------------------------------------------------------
.textarea-wrapper {
@include padding(0px, var(--padding-end), 0px, var(--padding-start));
@include border-radius(var(--border-radius));
display: flex;
position: relative;
flex-grow: 1;
align-items: flex-start;
height: inherit;
min-height: inherit;
transition: background-color 15ms linear;
background: var(--background);
line-height: normal;
}
// Textarea Native Wrapper
// ----------------------------------------------------------------
.native-wrapper {
position: relative;
width: 100%;
height: 100%;
}
// Textarea Native
// ----------------------------------------------------------------
:host(.has-focus) textarea {
caret-color: var(--highlight-color);
}
.native-wrapper textarea {
@include padding(var(--padding-top), 0px, var(--padding-bottom), 0px);
}
.native-wrapper {
display: grid;
min-width: inherit;
max-width: inherit;
min-height: inherit;
max-height: inherit;
/**
* This avoids a WebKit bug where
* the height of the inner textarea
* is incorrect and flows outside the
* parent container: https://bugs.webkit.org/show_bug.cgi?id=256781
* TODO FW-4734
*/
grid-auto-rows: 100%;
&::after {
// This technique is used for an auto-resizing textarea.
// The text contents are reflected as a pseudo-element that is visually hidden.
// This causes the textarea container to grow as needed to fit the contents.
white-space: pre-wrap;
content: attr(data-replicated-value) " ";
visibility: hidden;
}
}
.native-wrapper::after {
@include padding(var(--padding-top), 0, var(--padding-bottom), 0);
@include margin(0, 0, 0, 0);
@include border-radius(var(--border-radius));
/**
* Note: Do not use @include text-inherit()
* as that sets white-space: inherit
* Instead, we use white-space: pre-wrap above.
*/
color: inherit;
font-family: inherit;
font-size: inherit;
font-style: inherit;
font-weight: inherit;
letter-spacing: inherit;
text-align: inherit;
text-decoration: inherit;
text-indent: inherit;
text-overflow: inherit;
text-transform: inherit;
grid-area: 1 / 1 / 2 / 2;
word-break: break-word;
}
.textarea-wrapper-inner {
display: flex;
width: 100%;
min-height: inherit;
}
// Textarea Highlight
// ----------------------------------------------------------------
:host(.ion-touched.ion-invalid) {
--highlight-color: var(--highlight-color-invalid);
}
/**
* The component highlight is only shown
* on focus, so we can safely set the valid
* color state when touched/valid. If we
* set it when .has-focus is present then
* the highlight color would change
* from the valid color to the component's
* color during the transition after the
* component loses focus.
*/
:host(.ion-valid) {
--highlight-color: var(--highlight-color-valid);
}
// Textarea Bottom Content
// ----------------------------------------------------------------
.textarea-bottom {
/**
* The bottom content should take on the start and end
* padding so it is always aligned with either the label
* or the start of the textarea.
*/
@include padding(5px, var(--padding-end), 0, var(--padding-start));
display: flex;
justify-content: space-between;
border-top: var(--border-width) var(--border-style) var(--border-color);
font-size: dynamic-font(12px);
white-space: normal;
}
/**
* If the textarea has a validity state, the
* border and label should reflect that as a color.
*/
:host(.has-focus.ion-valid),
:host(.ion-touched.ion-invalid) {
--border-color: var(--highlight-color);
}
// Textarea Hint Text
// ----------------------------------------------------------------
/**
* Error text should only be shown when .ion-invalid is
* present on the textarea. Otherwise the helper text should
* be shown.
*/
.textarea-bottom .error-text {
display: none;
color: var(--highlight-color-invalid);
}
.textarea-bottom .helper-text {
display: block;
color: $text-color-step-300;
}
:host(.ion-touched.ion-invalid) .textarea-bottom .error-text {
display: block;
}
:host(.ion-touched.ion-invalid) .textarea-bottom .helper-text {
display: none;
}
// Textarea Max Length Counter
// ----------------------------------------------------------------
.textarea-bottom .counter {
/**
* Counter should always be at
* the end of the container even
* when no helper/error texts are used.
*/
@include margin-horizontal(auto, null);
color: $text-color-step-300;
white-space: nowrap;
padding-inline-start: 16px;
}
// Textarea Label
// ----------------------------------------------------------------
.label-text-wrapper {
@include padding(var(--padding-top), 0px, var(--padding-bottom), 0px);
/**
* Label text should not extend
* beyond the bounds of the textarea.
* However, we do not set the max
* width to 100% because then
* only the label would show and users
* would not be able to see what they are typing.
*/
max-width: 200px;
transition: color 150ms cubic-bezier(0.4, 0, 0.2, 1), transform 150ms cubic-bezier(0.4, 0, 0.2, 1);
/**
* This ensures that double tapping this text
* clicks the <label> and focuses the textarea
* when a screen reader is enabled.
*/
pointer-events: none;
}
/**
* We need to use two elements instead of
* one. The .label-text-wrapper is responsible
* for centering the label text vertically regardless
* of the textarea height using flexbox.
*
* The .label-text element is responsible for controlling
* overflow when label-placement="fixed".
* We want the ellipses to show up when the
* fixed label overflows, but text-overflow: ellipsis only
* works on block-level elements. A flex item is
* considered blockified (https://www.w3.org/TR/css-display-3/#blockify).
*/
.label-text,
::slotted([slot="label"]) {
text-overflow: ellipsis;
white-space: nowrap;
overflow: hidden;
}
/**
* If no label text is placed into the slot
* then the element should be hidden otherwise
* there will be additional margins added.
*/
.label-text-wrapper-hidden,
.textarea-outline-notch-hidden {
display: none;
}
.textarea-wrapper textarea {
/**
* When the floating label appears on top of the
* textarea, we need to fade the textarea out so that the
* label does not overlap with the placeholder.
*/
transition: opacity 150ms cubic-bezier(0.4, 0, 0.2, 1);
}
// Textarea Label Placement - Start
// ----------------------------------------------------------------
/**
* Label is on the left of the textarea in LTR and
* on the right in RTL.
*/
:host(.textarea-label-placement-start) .textarea-wrapper {
flex-direction: row;
}
:host(.textarea-label-placement-start) .label-text-wrapper {
/**
* The margin between the label and
* the textarea should be on the end
* when the label sits at the start.
*/
@include margin(0, $form-control-label-margin, 0, 0);
}
// Textarea Label Placement - End
// ----------------------------------------------------------------
/**
* Label is on the right of the textarea in LTR and
* on the left in RTL.
*/
:host(.textarea-label-placement-end) .textarea-wrapper {
flex-direction: row-reverse;
}
/**
* The margin between the label and
* the textarea should be on the start
* when the label sits at the end.
*/
:host(.textarea-label-placement-end) .label-text-wrapper {
@include margin(0, 0, 0, $form-control-label-margin);
}
// Textarea Label Placement - Fixed
// ----------------------------------------------------------------
:host(.textarea-label-placement-fixed) .label-text-wrapper {
/**
* The margin between the label and
* the textarea should be on the end
* when the label sits at the start.
*/
@include margin(0, $form-control-label-margin, 0, 0);
}
/**
* Label is on the left of the textarea in LTR and
* on the right in RTL. Label also has a fixed width.
*/
:host(.textarea-label-placement-fixed) .label-text {
flex: 0 0 100px;
width: 100px;
min-width: 100px;
max-width: 200px;
}
// Textarea Label Placement - Stacked and Floating
// ----------------------------------------------------------------
/**
* Stacked: Label sits above the textarea and is scaled down.
* Floating: Label sits over the textarea when the textarea has no
* value and is blurred. Label sits above the textarea and is scaled
* down when the textarea is focused or has a value.
*
*/
:host(.textarea-label-placement-stacked) .textarea-wrapper,
:host(.textarea-label-placement-floating) .textarea-wrapper {
flex-direction: column;
align-items: start;
}
/**
* Ensures that the label animates
* up and to the left in LTR or
* up and to the right in RTL.
*/
:host(.textarea-label-placement-stacked) .label-text-wrapper,
:host(.textarea-label-placement-floating) .label-text-wrapper {
@include transform-origin(start, top);
@include padding(0px);
max-width: 100%;
/**
* The 2 ensures the label
* remains on top of any browser
* autofill background too.
*/
z-index: 2;
}
/**
* Ensures the textarea does not
* overlap the label.
*/
:host(.textarea-label-placement-stacked) textarea,
:host(.textarea-label-placement-floating) textarea,
:host(.textarea-label-placement-stacked[auto-grow]) .native-wrapper::after,
:host(.textarea-label-placement-floating[auto-grow]) .native-wrapper::after {
@include margin(8px, 0px, 0px, 0px);
}
:host(.textarea-label-placement-stacked) ::slotted([slot="start"]),
:host(.textarea-label-placement-stacked) ::slotted([slot="end"]),
:host(.textarea-label-placement-floating) ::slotted([slot="start"]),
:host(.textarea-label-placement-floating) ::slotted([slot="end"]) {
margin-top: 8px;
}
/**
* This makes the label sit over the textarea
* when the textarea is blurred and has no value.
*/
:host(.textarea-label-placement-floating) .label-text-wrapper {
@include transform(translateY(100%), scale(1));
}
/**
* The textarea should be hidden when the label
* is on top of the textarea. This prevents the label
* from overlapping any placeholder value.
*/
:host(.textarea-label-placement-floating) textarea {
opacity: 0;
}
:host(.has-focus.textarea-label-placement-floating) textarea,
:host(.has-value.textarea-label-placement-floating) textarea {
opacity: 1;
}
/**
* This makes the label sit above the textarea.
*/
:host(.label-floating) .label-text-wrapper {
@include transform(translateY(50%), scale(#{$form-control-label-stacked-scale}));
/**
* Label text should not extend
* beyond the bounds of the textarea.
*/
max-width: calc(100% / #{$form-control-label-stacked-scale});
}
// Start/End Slots
// ----------------------------------------------------------------
.start-slot-wrapper, .end-slot-wrapper {
@include padding(var(--padding-top), 0, var(--padding-bottom), 0);
display: flex;
flex-shrink: 0;
align-self: start;
}
::slotted([slot="start"]),
::slotted([slot="end"]) {
margin-top: 0; // ensure slot content is vertically aligned with label
}
::slotted([slot="start"]:last-of-type) {
margin-inline-end: $form-control-label-margin;
margin-inline-start: 0;
}
::slotted([slot="end"]:first-of-type) {
margin-inline-start: $form-control-label-margin;
margin-inline-end: 0;
}