LibWeb: Update placeholder visibility when the placeholder value changes

Otherwise, setting a placeholder on an element that previously did not
have a placeholder would have no visible effect.
This commit is contained in:
Timothy Flynn 2024-04-04 12:27:22 -04:00 committed by Andreas Kling
parent 9f3c3925e0
commit 6af7f7e0f5
Notes: sideshowbarker 2024-07-17 07:20:49 +09:00
3 changed files with 31 additions and 5 deletions

View file

@ -1,6 +1,6 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (0,0) content-size 800x42 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x26 children: inline
BlockContainer <html> at (0,0) content-size 800x68 [BFC] children: not-inline
BlockContainer <body> at (8,8) content-size 784x52 children: inline
frag 0 from BlockContainer start: 0, length: 0, rect: [9,9 200x24] baseline: 17
frag 1 from TextNode start: 0, length: 1, rect: [210,8 10x22] baseline: 17
" "
@ -8,6 +8,7 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
frag 3 from TextNode start: 0, length: 1, rect: [422,8 10x22] baseline: 17
" "
frag 4 from BlockContainer start: 0, length: 0, rect: [433,9 200x24] baseline: 17
frag 5 from BlockContainer start: 0, length: 0, rect: [9,35 200x24] baseline: 17
BlockContainer <input> at (9,9) content-size 200x24 inline-block [BFC] children: not-inline
Box <div> at (11,10) content-size 196x22 flex-container(row) [FFC] children: not-inline
BlockContainer <div> at (11,10) content-size 196x22 flex-item [BFC] children: inline
@ -31,10 +32,22 @@ Viewport <#document> at (0,0) content-size 800x600 children: not-inline
"text"
TextNode <#text>
TextNode <#text>
BlockContainer <input#placeholder> at (9,35) content-size 200x24 inline-block [BFC] children: not-inline
Box <div> at (11,36) content-size 196x22 flex-container(row) [FFC] children: not-inline
BlockContainer <div> at (11,36) content-size 196x22 flex-item [BFC] children: inline
frag 0 from TextNode start: 0, length: 16, rect: [11,36 166.75x22] baseline: 17
"This placeholder"
frag 1 from TextNode start: 17, length: 14, rect: [11,58 147.90625x22] baseline: 17
"should also be"
frag 2 from TextNode start: 32, length: 8, rect: [11,80 73.046875x22] baseline: 17
"visisble"
TextNode <#text>
TextNode <#text>
TextNode <#text>
ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x42]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x26]
PaintableWithLines (BlockContainer<HTML>) [0,0 800x68]
PaintableWithLines (BlockContainer<BODY>) [8,8 784x52]
PaintableWithLines (BlockContainer<INPUT>) [8,8 202x26]
PaintableBox (Box<DIV>) [9,9 200x24]
PaintableWithLines (BlockContainer<DIV>) [11,10 196x22]
@ -49,3 +62,7 @@ ViewportPaintable (Viewport<#document>) [0,0 800x600]
PaintableBox (Box<DIV>) [433,9 200x24]
PaintableWithLines (BlockContainer<DIV>) [435,10 196x22]
TextPaintable (TextNode<#text>)
PaintableWithLines (BlockContainer<INPUT>#placeholder) [8,34 202x26] overflow: [9,35 200x67]
PaintableBox (Box<DIV>) [9,35 200x24] overflow: [9,35 200x67]
PaintableWithLines (BlockContainer<DIV>) [11,36 196x22] overflow: [11,36 196x66]
TextPaintable (TextNode<#text>)

View file

@ -8,3 +8,10 @@ input {
</style></head><body><input type="text" value="text" />
<input type="text" placeholder="This placeholder should be visible" />
<input type="text" value="text" placeholder="This placeholder should not be visible" />
<input id="placeholder" type="text" />
<script type="text/javascript">
document.addEventListener("DOMContentLoaded", () => {
let input = document.querySelector("#placeholder");
input.placeholder = "This placeholder should also be visisble";
});
</script>

View file

@ -1085,8 +1085,10 @@ void HTMLInputElement::form_associated_element_attribute_changed(FlyString const
update_shadow_tree();
}
} else if (name == HTML::AttributeNames::placeholder) {
if (m_placeholder_text_node)
if (m_placeholder_text_node) {
m_placeholder_text_node->set_data(placeholder());
update_placeholder_visibility();
}
} else if (name == HTML::AttributeNames::readonly) {
handle_readonly_attribute(value);
} else if (name == HTML::AttributeNames::src) {