michael@0: #ifdef 0
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #endif
michael@0: 
michael@0: /**
michael@0:  * Dialog allowing to undo the removal of single site or to completely restore
michael@0:  * the grid's original state.
michael@0:  */
michael@0: let gUndoDialog = {
michael@0:   /**
michael@0:    * The undo dialog's timeout in miliseconds.
michael@0:    */
michael@0:   HIDE_TIMEOUT_MS: 15000,
michael@0: 
michael@0:   /**
michael@0:    * Contains undo information.
michael@0:    */
michael@0:   _undoData: null,
michael@0: 
michael@0:   /**
michael@0:    * Initializes the undo dialog.
michael@0:    */
michael@0:   init: function UndoDialog_init() {
michael@0:     this._undoContainer = document.getElementById("newtab-undo-container");
michael@0:     this._undoContainer.addEventListener("click", this, false);
michael@0:     this._undoButton = document.getElementById("newtab-undo-button");
michael@0:     this._undoCloseButton = document.getElementById("newtab-undo-close-button");
michael@0:     this._undoRestoreButton = document.getElementById("newtab-undo-restore-button");
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * Shows the undo dialog.
michael@0:    * @param aSite The site that just got removed.
michael@0:    */
michael@0:   show: function UndoDialog_show(aSite) {
michael@0:     if (this._undoData)
michael@0:       clearTimeout(this._undoData.timeout);
michael@0: 
michael@0:     this._undoData = {
michael@0:       index: aSite.cell.index,
michael@0:       wasPinned: aSite.isPinned(),
michael@0:       blockedLink: aSite.link,
michael@0:       timeout: setTimeout(this.hide.bind(this), this.HIDE_TIMEOUT_MS)
michael@0:     };
michael@0: 
michael@0:     this._undoContainer.removeAttribute("undo-disabled");
michael@0:     this._undoButton.removeAttribute("tabindex");
michael@0:     this._undoCloseButton.removeAttribute("tabindex");
michael@0:     this._undoRestoreButton.removeAttribute("tabindex");
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * Hides the undo dialog.
michael@0:    */
michael@0:   hide: function UndoDialog_hide() {
michael@0:     if (!this._undoData)
michael@0:       return;
michael@0: 
michael@0:     clearTimeout(this._undoData.timeout);
michael@0:     this._undoData = null;
michael@0:     this._undoContainer.setAttribute("undo-disabled", "true");
michael@0:     this._undoButton.setAttribute("tabindex", "-1");
michael@0:     this._undoCloseButton.setAttribute("tabindex", "-1");
michael@0:     this._undoRestoreButton.setAttribute("tabindex", "-1");
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * The undo dialog event handler.
michael@0:    * @param aEvent The event to handle.
michael@0:    */
michael@0:   handleEvent: function UndoDialog_handleEvent(aEvent) {
michael@0:     switch (aEvent.target.id) {
michael@0:       case "newtab-undo-button":
michael@0:         this._undo();
michael@0:         break;
michael@0:       case "newtab-undo-restore-button":
michael@0:         this._undoAll();
michael@0:         break;
michael@0:       case "newtab-undo-close-button":
michael@0:         this.hide();
michael@0:         break;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * Undo the last blocked site.
michael@0:    */
michael@0:   _undo: function UndoDialog_undo() {
michael@0:     if (!this._undoData)
michael@0:       return;
michael@0: 
michael@0:     let {index, wasPinned, blockedLink} = this._undoData;
michael@0:     gBlockedLinks.unblock(blockedLink);
michael@0: 
michael@0:     if (wasPinned) {
michael@0:       gPinnedLinks.pin(blockedLink, index);
michael@0:     }
michael@0: 
michael@0:     gUpdater.updateGrid();
michael@0:     this.hide();
michael@0:   },
michael@0: 
michael@0:   /**
michael@0:    * Undo all blocked sites.
michael@0:    */
michael@0:   _undoAll: function UndoDialog_undoAll() {
michael@0:     NewTabUtils.undoAll(function() {
michael@0:       gUpdater.updateGrid();
michael@0:       this.hide();
michael@0:     }.bind(this));
michael@0:   }
michael@0: };
michael@0: 
michael@0: gUndoDialog.init();