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feat(form-field): implement hover state #9215

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feat(form-field): implement hover state #9215

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21 changes: 14 additions & 7 deletions src/lib/form-field/_form-field-theme.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@

// Underline colors.
$underline-color: mat-color($foreground, divider, if($is-dark-theme, 0.7, 0.42));
$underline-color-base: mat-color($foreground, divider, if($is-dark-theme, 1, 0.87));
$underline-color-accent: mat-color($accent);
$underline-color-warn: mat-color($warn);
$underline-focused-color: mat-color($primary);
Expand Down Expand Up @@ -56,21 +57,27 @@
}

.mat-form-field-ripple {
background-color: $underline-focused-color;
background-color: $underline-color-base;
}

&.mat-accent {
background-color: $underline-color-accent;
}
.mat-form-field.mat-focused {
.mat-form-field-ripple {
background-color: $underline-focused-color;

&.mat-warn {
background-color: $underline-color-warn;
&.mat-accent {
background-color: $underline-color-accent;
}

&.mat-warn {
background-color: $underline-color-warn;
}
}
}

// Styling for the error state of the form field. Note that while the same can be
// achieved with the ng-* classes, we use this approach in order to ensure that the same
// logic is used to style the error state and to show the error messages.
.mat-form-field-invalid {
.mat-form-field.mat-form-field-invalid {
.mat-form-field-label {
color: $underline-color-warn;

Expand Down
15 changes: 11 additions & 4 deletions src/lib/form-field/form-field.scss
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Expand Up @@ -179,10 +179,6 @@ $mat-form-field-default-infix-width: 180px !default;
opacity: 0;
transition: background-color $swift-ease-in-duration $swift-ease-in-timing-function;

.mat-form-field-invalid:not(.mat-focused) & {
height: $mat-form-field-underline-height;
}

.mat-focused &,
.mat-form-field-invalid & {
visibility: visible;
Expand All @@ -195,6 +191,17 @@ $mat-form-field-default-infix-width: 180px !default;
}
}

// Note that we need this specific of a selector because we don't want
// the hover effect to show when the user hovers over the hints.
.mat-form-field:not(.mat-form-field-disabled) .mat-input-flex:hover ~ .mat-input-underline {
.mat-form-field-ripple {
visibility: visible;
opacity: 1;
transform: none;
transition: opacity 600ms $swift-ease-out-timing-function;
}
}

// Wrapper for the hints and error messages.
.mat-form-field-subscript-wrapper {
position: absolute;
Expand Down