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egui_web: constrain the IME text agent to the canvas (#830)

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limit the position of the text agent to the height of the client area
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sumibi-yakitori 2021-11-03 03:46:42 +09:00 committed by GitHub
parent eda1d91654
commit b1716be745
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1 changed files with 4 additions and 1 deletions
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5
egui_web/src/lib.rs
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@ -1242,7 +1242,10 @@ fn move_text_cursor(cursor: &Option<egui::Pos2>, canvas_id: &str) -> Option<()>
if is_mobile() == Some(false) { if is_mobile() == Some(false) {
cursor.as_ref().and_then(|&egui::Pos2 { x, y }| { cursor.as_ref().and_then(|&egui::Pos2 { x, y }| {
let canvas = canvas_element(canvas_id)?; let canvas = canvas_element(canvas_id)?;
let y = y + (canvas.scroll_top() + canvas.offset_top()) as f32; let y = (y + (canvas.scroll_top() + canvas.offset_top()) as f32).min(
canvas.client_height() as f32
- text_agent().get_bounding_client_rect().height() as f32,
);
let x = x + (canvas.scroll_left() + canvas.offset_left()) as f32; let x = x + (canvas.scroll_left() + canvas.offset_left()) as f32;
// Canvas is translated 50% horizontally in html. // Canvas is translated 50% horizontally in html.
let x = x - canvas.offset_width() as f32 / 2.0; let x = x - canvas.offset_width() as f32 / 2.0;