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Improved viewport processing

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M66B
2020-09-18 12:40:30 +02:00
parent 56e91abde1
commit c4faadc934
1 changed files with 13 additions and 6 deletions
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19
app/src/main/java/eu/faircode/email/HtmlHelper.java
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@@ -1530,16 +1530,23 @@ public class HtmlHelper {
static void setViewport(Document document, boolean overview) {
// https://developer.mozilla.org/en-US/docs/Mozilla/Mobile/Viewport_meta_tag
Elements meta = document.head().select("meta").select("[name=viewport]");
Elements meta = document.select("meta").select("[name=viewport]");
// Note that the browser will recognize meta elements in the body too
if (overview) // fit width
meta.remove();
else {
if (meta.size() == 1) {
String content = meta.attr("content")
.toLowerCase()
.replace(" ", "")
.replace("user-scalable=no", "user-scalable=yes");
meta.attr("content", content);
String content = meta.attr("content");
String[] param = content.split("[;,]");
for (int i = 0; i < param.length; i++) {
String[] kv = param[i].split("=");
if (kv.length == 2 &&
"user-scalable".equals(kv[0].replace(" ", ""))) {
kv[1] = "yes";
param[i] = TextUtils.join("=", kv);
}
}
meta.attr("content", TextUtils.join(", ", param));
} else {
meta.remove();
document.head().prependElement("meta")