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remove old IE support from WMD, part I: uaSniffed

This commit is contained in:
Jeff Atwood 2014-10-12 00:22:14 -07:00
parent 08bdf26e70
commit aa29fc3b4a
1 changed files with 7 additions and 58 deletions
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65
app/assets/javascripts/discourse/lib/Markdown.Editor.js
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@ -40,11 +40,6 @@
nav = window.navigator, nav = window.navigator,
SETTINGS = { lineLength: 72 }, SETTINGS = { lineLength: 72 },
// Used to work around some browser bugs where we can't use feature testing.
uaSniffed = {
isIE: /msie/.test(nav.userAgent.toLowerCase()),
isIE_5or6: /msie 6/.test(nav.userAgent.toLowerCase()) || /msie 5/.test(nav.userAgent.toLowerCase())
};
var defaultsStrings = { var defaultsStrings = {
bold: "Strong <strong> Ctrl+B", bold: "Strong <strong> Ctrl+B",
@ -496,7 +491,7 @@
} }
} }
if (!uaSniffed.isIE || mode != "moving") { if (mode != "moving") {
timer = setTimeout(refreshState, 1); timer = setTimeout(refreshState, 1);
} }
else { else {
@ -681,7 +676,7 @@
}); });
var handlePaste = function () { var handlePaste = function () {
if (uaSniffed.isIE || (inputStateObj && inputStateObj.text != panels.input.value)) { if (inputStateObj && inputStateObj.text != panels.input.value) {
if (timer == undefined) { if (timer == undefined) {
mode = "paste"; mode = "paste";
saveState(); saveState();
@ -1097,14 +1092,8 @@
var fullTop = position.getTop(panels.input) - getDocScrollTop(); var fullTop = position.getTop(panels.input) - getDocScrollTop();
if (uaSniffed.isIE) { window.scrollBy(0, fullTop - emptyTop);
setTimeout(function () {
window.scrollBy(0, fullTop - emptyTop);
}, 0);
}
else {
window.scrollBy(0, fullTop - emptyTop);
}
}; };
var init = function () { var init = function () {
@ -1132,27 +1121,14 @@
style.position = "absolute"; style.position = "absolute";
style.top = "0"; style.top = "0";
style.zIndex = "2000"; style.zIndex = "2000";
style.opacity = "0.5";
if (uaSniffed.isIE) {
style.filter = "alpha(opacity=50)";
}
else {
style.opacity = "0.5";
}
var pageSize = position.getPageSize(); var pageSize = position.getPageSize();
style.height = pageSize[1] + "px"; style.height = pageSize[1] + "px";
if (uaSniffed.isIE) { style.left = "0";
style.left = doc.documentElement.scrollLeft; style.width = "100%";
style.width = doc.documentElement.clientWidth;
}
else {
style.left = "0";
style.width = "100%";
}
doc.body.appendChild(background); doc.body.appendChild(background);
return background; return background;
@ -1279,11 +1255,6 @@
dialog.style.top = "50%"; dialog.style.top = "50%";
dialog.style.left = "50%"; dialog.style.left = "50%";
dialog.style.display = "block"; dialog.style.display = "block";
if (uaSniffed.isIE_5or6) {
dialog.style.position = "absolute";
dialog.style.top = doc.documentElement.scrollTop + 200 + "px";
dialog.style.left = "50%";
}
doc.body.appendChild(dialog); doc.body.appendChild(dialog);
// This has to be done AFTER adding the dialog to the form if you // This has to be done AFTER adding the dialog to the form if you
@ -1388,15 +1359,6 @@
} }
}); });
// special handler because IE clears the context of the textbox on ESC
if (uaSniffed.isIE) {
util.addEvent(inputBox, "keydown", function (key) {
var code = key.keyCode;
if (code === 27) {
return false;
}
});
}
// Perform the button's action. // Perform the button's action.
@ -1465,19 +1427,6 @@
if (isEnabled) { if (isEnabled) {
button.disabled = false button.disabled = false
// IE tries to select the background image "button" text (it's
// implemented in a list item) so we have to cache the selection
// on mousedown.
if (uaSniffed.isIE) {
button.onmousedown = function () {
if (doc.activeElement && doc.activeElement !== panels.input) { // we're not even in the input box, so there's no selection
return;
}
panels.ieCachedRange = document.selection.createRange();
panels.ieCachedScrollTop = panels.input.scrollTop;
};
}
if (!button.isHelp) { if (!button.isHelp) {
button.onclick = function () { button.onclick = function () {
if (this.onmouseout) { if (this.onmouseout) {