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website: floor iframe at the welcome-page height

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shum
2026-09-10 18:34:50 +00:00
parent 22fa5f4d2f
commit f405b1107c
1 changed files with 5 additions and 7 deletions
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website/src/badges.html
+5 -7
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@@ -141,7 +141,6 @@ templateEngineOverride: njk
// from it, so neither channel can be driven by another frame.
var APP = "https://badges.simplex.chat";
var frame = document.getElementById("badges-frame");
var minHeight = 0; // the initial screen's height, kept as the frame's floor once known
// Load the frame at the route we persisted (a wizard step's hash; empty for the landing or
// an order the frame resumes from its own store). This is what a standalone reload does, so
// the step appears in place instead of scrolling in from the landing.
@@ -194,13 +193,12 @@ templateEngineOverride: njk
if (e.data.type === "simplex-nav" && typeof e.data.hash === "string") {
try { history.replaceState(null, "", location.pathname + location.search + e.data.hash); } catch (ex) {}
}
// The frame reports its content height; size it so the site's page scrolls, not the frame.
// The frame reports its content height; size it so the site's page scrolls, not the
// frame. Its `min` is the welcome-page height — floor the iframe there so a shorter
// screen (an empty codes list, a compact step) never collapses it below that.
if (e.data.type === "simplex-height" && typeof e.data.height === "number") {
var h = Math.max(0, e.data.height);
// The first height is the initial screen; keep it as a floor so a shorter later
// screen never collapses the frame below where the buyer started.
if (minHeight === 0) { minHeight = h; frame.style.minHeight = h + "px"; }
frame.style.height = h + "px";
if (typeof e.data.min === "number" && e.data.min > 0) frame.style.minHeight = e.data.min + "px";
frame.style.height = Math.max(0, e.data.height) + "px";
reveal();
}
});