Closed Bug 1068525 Opened 5 years ago Closed 5 years ago
[Text selection] Keep the size of Accessible
Carets during zooming
+++ This bug was initially created as a clone of Bug #1021527 +++ The size of touch caret and selection carets will be enlarged after zooming-in, which make it look blurry. The correct behavior is to keep the size still and does not enlarge or shrink when zooming in or zooming out.
Assignee: nobody → tlin
Summary: [Text selection] Keep the size of touch caret and selection carets during zooming → [Text selection] Keep the size of AccessibleCarets during zooming
We want AccessibleCaret be of the same size regardless of the zoom level. We simply divide the caret's width, height, margin-left, and the text selection bar's margin-left by current zoom level. The margin-left of the caret is adjusted from -23px to -23.5px for better looking.
Attachment #8605720 - Flags: feedback?(mtseng)
Attachment #8605720 - Flags: feedback?(mtseng) → feedback+
Attachment #8576575 - Attachment is obsolete: true
Attachment #8605720 - Flags: review?(roc)
Comment on attachment 8605720 [details] [diff] [review] Ignore zoom level for AccessibleCaret. (v1) Review of attachment 8605720 [details] [diff] [review]: ----------------------------------------------------------------- This looks fine, but what actually calls SetCaretElementPosition during/after a zoom?
Attachment #8605720 - Flags: review?(roc) → review+
Re roc comment 6: > This looks fine, but what actually calls SetCaretElementPosition > during/after a zoom? If no selection change or scroll events happens, the last resort for updating carets would be the reflow callback. We'll only update carets when they are visually visible. The call sequence would be AccessibleCaretEventHub::Reflow() -> AccessibleCaretManager::OnReflow() -> AccessibleCaretManager::UpdateCarets() -> ... -> AccessibleCaret::SetCaretElementPosition() BTW, I would like to to rename SetCaretElementPosition to SetCaretElementStyle since it now does more than setting the position.
Rename SetCaretElementPosition -> SetCaretElementStyle. Rename SetSelectionBarElementPosition -> SetSelectionBarElementStyle.
This fix is for AccesibleCaret, not for TouchCaret and SelectionCarets. Thus we will still see the caret size changed when zooming in/out until we enable "layout.accessiblecaret.enabled" on master.
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