summaryrefslogtreecommitdiffstats
path: root/browser/base/content/newtab/updater.js
diff options
context:
space:
mode:
Diffstat (limited to 'browser/base/content/newtab/updater.js')
-rw-r--r--browser/base/content/newtab/updater.js177
1 files changed, 0 insertions, 177 deletions
diff --git a/browser/base/content/newtab/updater.js b/browser/base/content/newtab/updater.js
deleted file mode 100644
index 2bab74d70..000000000
--- a/browser/base/content/newtab/updater.js
+++ /dev/null
@@ -1,177 +0,0 @@
-#ifdef 0
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-#endif
-
-/**
- * This singleton provides functionality to update the current grid to a new
- * set of pinned and blocked sites. It adds, moves and removes sites.
- */
-var gUpdater = {
- /**
- * Updates the current grid according to its pinned and blocked sites.
- * This removes old, moves existing and creates new sites to fill gaps.
- * @param aCallback The callback to call when finished.
- */
- updateGrid: function Updater_updateGrid(aCallback) {
- let links = gLinks.getLinks().slice(0, gGrid.cells.length);
-
- // Find all sites that remain in the grid.
- let sites = this._findRemainingSites(links);
-
- // Remove sites that are no longer in the grid.
- this._removeLegacySites(sites, () => {
- // Freeze all site positions so that we can move their DOM nodes around
- // without any visual impact.
- this._freezeSitePositions(sites);
-
- // Move the sites' DOM nodes to their new position in the DOM. This will
- // have no visual effect as all the sites have been frozen and will
- // remain in their current position.
- this._moveSiteNodes(sites);
-
- // Now it's time to animate the sites actually moving to their new
- // positions.
- this._rearrangeSites(sites, () => {
- // Try to fill empty cells and finish.
- this._fillEmptyCells(links, aCallback);
-
- // Update other pages that might be open to keep them synced.
- gAllPages.update(gPage);
- });
- });
- },
-
- /**
- * Takes an array of links and tries to correlate them to sites contained in
- * the current grid. If no corresponding site can be found (i.e. the link is
- * new and a site will be created) then just set it to null.
- * @param aLinks The array of links to find sites for.
- * @return Array of sites mapped to the given links (can contain null values).
- */
- _findRemainingSites: function Updater_findRemainingSites(aLinks) {
- let map = {};
-
- // Create a map to easily retrieve the site for a given URL.
- gGrid.sites.forEach(function (aSite) {
- if (aSite)
- map[aSite.url] = aSite;
- });
-
- // Map each link to its corresponding site, if any.
- return aLinks.map(function (aLink) {
- return aLink && (aLink.url in map) && map[aLink.url];
- });
- },
-
- /**
- * Freezes the given sites' positions.
- * @param aSites The array of sites to freeze.
- */
- _freezeSitePositions: function Updater_freezeSitePositions(aSites) {
- aSites.forEach(function (aSite) {
- if (aSite)
- gTransformation.freezeSitePosition(aSite);
- });
- },
-
- /**
- * Moves the given sites' DOM nodes to their new positions.
- * @param aSites The array of sites to move.
- */
- _moveSiteNodes: function Updater_moveSiteNodes(aSites) {
- let cells = gGrid.cells;
-
- // Truncate the given array of sites to not have more sites than cells.
- // This can happen when the user drags a bookmark (or any other new kind
- // of link) onto the grid.
- let sites = aSites.slice(0, cells.length);
-
- sites.forEach(function (aSite, aIndex) {
- let cell = cells[aIndex];
- let cellSite = cell.site;
-
- // The site's position didn't change.
- if (!aSite || cellSite != aSite) {
- let cellNode = cell.node;
-
- // Empty the cell if necessary.
- if (cellSite)
- cellNode.removeChild(cellSite.node);
-
- // Put the new site in place, if any.
- if (aSite)
- cellNode.appendChild(aSite.node);
- }
- }, this);
- },
-
- /**
- * Rearranges the given sites and slides them to their new positions.
- * @param aSites The array of sites to re-arrange.
- * @param aCallback The callback to call when finished.
- */
- _rearrangeSites: function Updater_rearrangeSites(aSites, aCallback) {
- let options = {callback: aCallback, unfreeze: true};
- gTransformation.rearrangeSites(aSites, options);
- },
-
- /**
- * Removes all sites from the grid that are not in the given links array or
- * exceed the grid.
- * @param aSites The array of sites remaining in the grid.
- * @param aCallback The callback to call when finished.
- */
- _removeLegacySites: function Updater_removeLegacySites(aSites, aCallback) {
- let batch = [];
-
- // Delete sites that were removed from the grid.
- gGrid.sites.forEach(function (aSite) {
- // The site must be valid and not in the current grid.
- if (!aSite || aSites.indexOf(aSite) != -1)
- return;
-
- batch.push(new Promise(resolve => {
- // Fade out the to-be-removed site.
- gTransformation.hideSite(aSite, function () {
- let node = aSite.node;
-
- // Remove the site from the DOM.
- node.parentNode.removeChild(node);
- resolve();
- });
- }));
- });
-
- Promise.all(batch).then(aCallback);
- },
-
- /**
- * Tries to fill empty cells with new links if available.
- * @param aLinks The array of links.
- * @param aCallback The callback to call when finished.
- */
- _fillEmptyCells: function Updater_fillEmptyCells(aLinks, aCallback) {
- let {cells, sites} = gGrid;
-
- // Find empty cells and fill them.
- Promise.all(sites.map((aSite, aIndex) => {
- if (aSite || !aLinks[aIndex])
- return null;
-
- return new Promise(resolve => {
- // Create the new site and fade it in.
- let site = gGrid.createSite(aLinks[aIndex], cells[aIndex]);
-
- // Set the site's initial opacity to zero.
- site.node.style.opacity = 0;
-
- // Flush all style changes for the dynamically inserted site to make
- // the fade-in transition work.
- window.getComputedStyle(site.node).opacity;
- gTransformation.showSite(site, resolve);
- });
- })).then(aCallback).catch(console.exception);
- }
-};