gecko/browser/base/content/newtab/undo.js

117 lines
2.9 KiB
JavaScript
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#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
/**
* Dialog allowing to undo the removal of single site or to completely restore
* the grid's original state.
*/
let gUndoDialog = {
/**
* The undo dialog's timeout in miliseconds.
*/
HIDE_TIMEOUT_MS: 15000,
/**
* Contains undo information.
*/
_undoData: null,
/**
* Initializes the undo dialog.
*/
init: function UndoDialog_init() {
this._undoContainer = document.getElementById("newtab-undo-container");
this._undoContainer.addEventListener("click", this, false);
this._undoButton = document.getElementById("newtab-undo-button");
this._undoCloseButton = document.getElementById("newtab-undo-close-button");
this._undoRestoreButton = document.getElementById("newtab-undo-restore-button");
},
/**
* Shows the undo dialog.
* @param aSite The site that just got removed.
*/
show: function UndoDialog_show(aSite) {
if (this._undoData)
clearTimeout(this._undoData.timeout);
this._undoData = {
index: aSite.cell.index,
wasPinned: aSite.isPinned(),
blockedLink: aSite.link,
timeout: setTimeout(this.hide.bind(this), this.HIDE_TIMEOUT_MS)
};
this._undoContainer.removeAttribute("undo-disabled");
this._undoButton.removeAttribute("tabindex");
this._undoCloseButton.removeAttribute("tabindex");
this._undoRestoreButton.removeAttribute("tabindex");
},
/**
* Hides the undo dialog.
*/
hide: function UndoDialog_hide() {
if (!this._undoData)
return;
clearTimeout(this._undoData.timeout);
this._undoData = null;
this._undoContainer.setAttribute("undo-disabled", "true");
this._undoButton.setAttribute("tabindex", "-1");
this._undoCloseButton.setAttribute("tabindex", "-1");
this._undoRestoreButton.setAttribute("tabindex", "-1");
},
/**
* The undo dialog event handler.
* @param aEvent The event to handle.
*/
handleEvent: function UndoDialog_handleEvent(aEvent) {
switch (aEvent.target.id) {
case "newtab-undo-button":
this._undo();
break;
case "newtab-undo-restore-button":
this._undoAll();
break;
case "newtab-undo-close-button":
this.hide();
break;
}
},
/**
* Undo the last blocked site.
*/
_undo: function UndoDialog_undo() {
if (!this._undoData)
return;
let {index, wasPinned, blockedLink} = this._undoData;
gBlockedLinks.unblock(blockedLink);
if (wasPinned) {
gPinnedLinks.pin(blockedLink, index);
}
gUpdater.updateGrid();
this.hide();
},
/**
* Undo all blocked sites.
*/
_undoAll: function UndoDialog_undoAll() {
NewTabUtils.undoAll(function() {
gUpdater.updateGrid();
this.hide();
}.bind(this));
}
};
gUndoDialog.init();