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b584f990fc
We need to hide <xul:panel>s by default for performance reasons. The RefreshDriver calls gtk/nsWindow::GetClientOffset() in a hot loop and causes a lot of communication between us and the XServer. We and up poll()ing and waiting for XServer responses in RefreshDriver::Tick() which regresses performance on Linux by 50-100%.
76 lines
2 KiB
JavaScript
76 lines
2 KiB
JavaScript
#ifdef 0
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#endif
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let gCustomize = {
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_nodeIDSuffixes: [
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"blank",
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"button",
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"classic",
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"enhanced",
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"panel",
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],
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_nodes: {},
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init: function() {
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for (let idSuffix of this._nodeIDSuffixes) {
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this._nodes[idSuffix] = document.getElementById("newtab-customize-" + idSuffix);
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}
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this._nodes.button.addEventListener("click", e => this.showPanel());
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this._nodes.blank.addEventListener("click", e => {
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gAllPages.enabled = false;
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});
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this._nodes.classic.addEventListener("click", e => {
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gAllPages.enabled = true;
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gAllPages.enhanced = false;
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});
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this._nodes.enhanced.addEventListener("click", e => {
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gAllPages.enabled = true;
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gAllPages.enhanced = true;
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});
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this.updateSelected();
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},
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showPanel: function() {
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let nodes = this._nodes;
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let {button, panel} = nodes;
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if (button.hasAttribute("active")) {
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return Promise.resolve(nodes);
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}
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panel.hidden = false;
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panel.openPopup(button);
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button.setAttribute("active", true);
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panel.addEventListener("popuphidden", function onHidden() {
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panel.removeEventListener("popuphidden", onHidden);
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panel.hidden = true;
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button.removeAttribute("active");
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});
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return new Promise(resolve => {
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panel.addEventListener("popupshown", function onShown() {
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panel.removeEventListener("popupshown", onShown);
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resolve(nodes);
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});
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});
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},
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updateSelected: function() {
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let {enabled, enhanced} = gAllPages;
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let selected = enabled ? enhanced ? "enhanced" : "classic" : "blank";
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["enhanced", "classic", "blank"].forEach(id => {
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let node = this._nodes[id];
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if (id == selected) {
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node.setAttribute("selected", true);
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}
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else {
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node.removeAttribute("selected");
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}
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});
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},
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};
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