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Use getBoundingClientRect() to more cheaply see if a messages could be condensed. 

(imported from commit 34d45fbc95a3597d27d167c9c02e73f9325edbee)
This commit is contained in:
Jessica McKellar 2013-07-11 15:17:23 -04:00
parent 5fc6fb5896
commit ea582d4e12
1 changed files with 5 additions and 4 deletions
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9
zephyr/static/js/ui.js
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@ -590,8 +590,8 @@ exports.hide_loading_more_messages_indicator = function () {
}
};
function could_be_condensed(content) {
return content.height() > (viewport.height() * 0.65);
function could_be_condensed(elem) {
return elem.getBoundingClientRect().height > viewport.height() * 0.65;
}
function show_more_link(row) {
@ -1392,7 +1392,8 @@ exports.process_condensing = function (index, elem) {
var content = $(elem).find(".message_content");
var message = current_msg_list.get(rows.id($(elem)));
if (content !== undefined && message !== undefined) {
if (could_be_condensed(content)) {
var long_message = could_be_condensed(elem);
if (long_message) {
// All long messages are flagged as such.
content.addClass("could-be-condensed");
}
@ -1405,7 +1406,7 @@ exports.process_condensing = function (index, elem) {
} else if (message.condensed === false) {
uncondense($(elem));
return;
} else if (could_be_condensed(content)) {
} else if (long_message) {
// By default, condense a long message.
condense($(elem));
}