From fafb7dc17d45d24ef5e84d3f61696ae9a4ea28fd Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijn@haverbeke.nl>
Date: Tue, 16 Aug 2016 14:37:06 +0200
Subject: [PATCH] Improve paste handling on IE in contentEditable mode
Issue #4091
---
lib/codemirror.js | 39 ++++++++++++++++++++++-----------------
1 file changed, 22 insertions(+), 17 deletions(-)
diff --git a/lib/codemirror.js b/lib/codemirror.js
index 1702dbe9b..0d3b7ba59 100644
--- a/lib/codemirror.js
+++ b/lib/codemirror.js
@@ -1153,7 +1153,7 @@
}
function handlePaste(e, cm) {
- var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
+ var pasted = e.clipboardData && e.clipboardData.getData("Text");
if (pasted) {
e.preventDefault();
if (!cm.isReadOnly() && !cm.options.disableInput)
@@ -1581,7 +1581,9 @@
disableBrowserMagic(div, cm.options.spellcheck);
on(div, "paste", function(e) {
- if (!signalDOMEvent(cm, e)) handlePaste(e, cm);
+ if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
+ // IE doesn't fire input events, so we schedule a read for the pasted content in this way
+ if (ie_version <= 11) setTimeout(operation(cm, function() {regChange(cm);}), 20)
})
on(div, "compositionstart", function(e) {
@@ -1641,23 +1643,26 @@
});
}
}
- // iOS exposes the clipboard API, but seems to discard content inserted into it
- if (e.clipboardData && !ios) {
- e.preventDefault();
+ if (e.clipboardData) {
e.clipboardData.clearData();
- e.clipboardData.setData("text/plain", lastCopied.text.join("\n"));
- } else {
- // Old-fashioned briefly-focus-a-textarea hack
- var kludge = hiddenTextarea(), te = kludge.firstChild;
- cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
- te.value = lastCopied.text.join("\n");
- var hadFocus = document.activeElement;
- selectInput(te);
- setTimeout(function() {
- cm.display.lineSpace.removeChild(kludge);
- hadFocus.focus();
- }, 50);
+ var content = lastCopied.text.join("\n")
+ // iOS exposes the clipboard API, but seems to discard content inserted into it
+ e.clipboardData.setData("Text", content);
+ if (e.clipboardData.getData("Text") == content) {
+ e.preventDefault();
+ return
+ }
}
+ // Old-fashioned briefly-focus-a-textarea hack
+ var kludge = hiddenTextarea(), te = kludge.firstChild;
+ cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+ te.value = lastCopied.text.join("\n");
+ var hadFocus = document.activeElement;
+ selectInput(te);
+ setTimeout(function() {
+ cm.display.lineSpace.removeChild(kludge);
+ hadFocus.focus();
+ }, 50);
}
on(div, "copy", onCopyCut);
on(div, "cut", onCopyCut);
--
GitLab