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Diffstat (limited to 'browser/base/content/sanitizeDialog.js')
| -rw-r--r-- | browser/base/content/sanitizeDialog.js | 886 |
1 files changed, 886 insertions, 0 deletions
diff --git a/browser/base/content/sanitizeDialog.js b/browser/base/content/sanitizeDialog.js new file mode 100644 index 000000000..900b81324 --- /dev/null +++ b/browser/base/content/sanitizeDialog.js @@ -0,0 +1,886 @@ +/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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/. */ + +var Cc = Components.classes; +var Ci = Components.interfaces; + +var gSanitizePromptDialog = { + + get bundleBrowser() { + if (!this._bundleBrowser) { + this._bundleBrowser = document.getElementById("bundleBrowser"); + } + return this._bundleBrowser; + }, + + get selectedTimespan() { + var durList = document.getElementById("sanitizeDurationChoice"); + return parseInt(durList.value); + }, + + get sanitizePreferences() { + if (!this._sanitizePreferences) { + this._sanitizePreferences = document.getElementById("sanitizePreferences"); + } + return this._sanitizePreferences; + }, + + get warningBox() { + return document.getElementById("sanitizeEverythingWarningBox"); + }, + + init: function() { + // This is used by selectByTimespan() to determine if the window has loaded. + this._inited = true; + + var s = new Sanitizer(); + s.prefDomain = "privacy.cpd."; + + let sanitizeItemList = document.querySelectorAll("#itemList > [preference]"); + for (let i = 0; i < sanitizeItemList.length; i++) { + let prefItem = sanitizeItemList[i]; + let name = s.getNameFromPreference(prefItem.getAttribute("preference")); + s.canClearItem(name, function canClearCallback(aItem, aCanClear, aPrefItem) { + if (!aCanClear) { + aPrefItem.preference = null; + aPrefItem.checked = false; + aPrefItem.disabled = true; + } + }, prefItem); + } + + document.documentElement.getButton("accept").label = + this.bundleBrowser.getString("sanitizeButtonOK"); + + if (this.selectedTimespan === Sanitizer.TIMESPAN_EVERYTHING) { + this.prepareWarning(); + this.warningBox.hidden = false; + document.title = this.bundleBrowser.getString("sanitizeDialog2.everything.title"); + } else { + this.warningBox.hidden = true; + } + }, + + selectByTimespan: function() { + // This method is the onselect handler for the duration dropdown. As a + // result it's called a couple of times before onload calls init(). + if (!this._inited) { + return; + } + + var warningBox = this.warningBox; + + // If clearing everything + if (this.selectedTimespan === Sanitizer.TIMESPAN_EVERYTHING) { + this.prepareWarning(); + if (warningBox.hidden) { + warningBox.hidden = false; + window.resizeBy(0, warningBox.boxObject.height); + } + window.document.title = this.bundleBrowser.getString("sanitizeDialog2.everything.title"); + return; + } + + // If clearing a specific time range + if (!warningBox.hidden) { + window.resizeBy(0, -warningBox.boxObject.height); + warningBox.hidden = true; + } + window.document.title = window.document.documentElement.getAttribute("noneverythingtitle"); + }, + + sanitize: function() { + // Update pref values before handing off to the sanitizer (bug 453440) + this.updatePrefs(); + var s = new Sanitizer(); + s.prefDomain = "privacy.cpd."; + + s.range = Sanitizer.getClearRange(this.selectedTimespan); + s.ignoreTimespan = !s.range; + + // As the sanitize is async, we disable the buttons, update the label on + // the 'accept' button to indicate things are happening and return false - + // once the async operation completes (either with or without errors) + // we close the window. + let docElt = document.documentElement; + let acceptButton = docElt.getButton("accept"); + acceptButton.disabled = true; + acceptButton.setAttribute("label", this.bundleBrowser.getString("sanitizeButtonClearing")); + docElt.getButton("cancel").disabled = true; + try { + s.sanitize().then(window.close, window.close); + } catch(er) { + Components.utils.reportError("Exception during sanitize: " + er); + return true; // We *do* want to close immediately on error. + } + return false; + }, + + /** + * If the panel that displays a warning when the duration is "Everything" is + * not set up, sets it up. Otherwise does nothing. + * + * @param aDontShowItemList Whether only the warning message should be updated. + * True means the item list visibility status should not + * be changed. + */ + prepareWarning: function(aDontShowItemList) { + // If the date and time-aware locale warning string is ever used again, + // initialize it here. Currently we use the no-visits warning string, + // which does not include date and time. See bug 480169 comment 48. + + var warningStringID; + if (this.hasNonSelectedItems()) { + warningStringID = "sanitizeSelectedWarning"; + if (!aDontShowItemList) { + this.showItemList(); + } + } else { + warningStringID = "sanitizeEverythingWarning2"; + } + + var warningDesc = document.getElementById("sanitizeEverythingWarning"); + warningDesc.textContent = this.bundleBrowser.getString(warningStringID); + }, + + /** + * Called when the value of a preference element is synced from the actual + * pref. Enables or disables the OK button appropriately. + */ + onReadGeneric: function() { + var found = false; + + // Find any other pref that's checked and enabled. + var i = 0; + while (!found && i < this.sanitizePreferences.childNodes.length) { + var preference = this.sanitizePreferences.childNodes[i]; + + found = !!preference.value && + !preference.disabled; + i++; + } + + try { + document.documentElement.getButton("accept").disabled = !found; + } catch(e) {} + + // Update the warning prompt if needed + this.prepareWarning(true); + + return undefined; + }, + + /** + * Sanitizer.prototype.sanitize() requires the prefs to be up-to-date. + * Because the type of this prefwindow is "child" -- and that's needed because + * without it the dialog has no OK and Cancel buttons -- the prefs are not + * updated on dialogaccept on platforms that don't support instant-apply + * (i.e., Windows). We must therefore manually set the prefs from their + * corresponding preference elements. + */ + updatePrefs : function() + { + var tsPref = document.getElementById("privacy.sanitize.timeSpan"); + Sanitizer.prefs.setIntPref("timeSpan", this.selectedTimespan); + + // Keep the pref for the download history in sync with the history pref. + document.getElementById("privacy.cpd.downloads").value = + document.getElementById("privacy.cpd.history").value; + + // Now manually set the prefs from their corresponding preference + // elements. + var prefs = this.sanitizePreferences.rootBranch; + for (let i = 0; i < this.sanitizePreferences.childNodes.length; ++i) { + var p = this.sanitizePreferences.childNodes[i]; + prefs.setBoolPref(p.name, p.value); + } + }, + + /** + * Check if all of the history items have been selected like the default status. + */ + hasNonSelectedItems: function() { + let checkboxes = document.querySelectorAll("#itemList > [preference]"); + for (let i = 0; i < checkboxes.length; ++i) { + let pref = document.getElementById(checkboxes[i].getAttribute("preference")); + if (!pref.value) { + return true; + } + } + return false; + }, + + /** + * Show the history items list. + */ + showItemList: function() { + var itemList = document.getElementById("itemList"); + var expanderButton = document.getElementById("detailsExpander"); + + if (itemList.collapsed) { + expanderButton.className = "expander-up"; + itemList.setAttribute("collapsed", "false"); + if (document.documentElement.boxObject.height) { + window.resizeBy(0, itemList.boxObject.height); + } + } + }, + + /** + * Hide the history items list. + */ + hideItemList: function() { + var itemList = document.getElementById("itemList"); + var expanderButton = document.getElementById("detailsExpander"); + + if (!itemList.collapsed) { + expanderButton.className = "expander-down"; + window.resizeBy(0, -itemList.boxObject.height); + itemList.setAttribute("collapsed", "true"); + } + }, + + /** + * Called by the item list expander button to toggle the list's visibility. + */ + toggleItemList: function() { + var itemList = document.getElementById("itemList"); + + if (itemList.collapsed) { + this.showItemList(); + } else { + this.hideItemList(); + } + } + +#ifdef CRH_DIALOG_TREE_VIEW + // A duration value; used in the same context as Sanitizer.TIMESPAN_HOUR, + // Sanitizer.TIMESPAN_2HOURS, et al. This should match the value attribute + // of the sanitizeDurationCustom menuitem. + get TIMESPAN_CUSTOM() { + return -1; + }, + + get placesTree() { + if (!this._placesTree) { + this._placesTree = document.getElementById("placesTree"); + } + return this._placesTree; + }, + + init: function() { + // This is used by selectByTimespan() to determine if the window has loaded. + this._inited = true; + + var s = new Sanitizer(); + s.prefDomain = "privacy.cpd."; + + let sanitizeItemList = document.querySelectorAll("#itemList > [preference]"); + for (let i = 0; i < sanitizeItemList.length; i++) { + let prefItem = sanitizeItemList[i]; + let name = s.getNameFromPreference(prefItem.getAttribute("preference")); + s.canClearItem(name, function canClearCallback(aCanClear) { + if (!aCanClear) { + prefItem.preference = null; + prefItem.checked = false; + prefItem.disabled = true; + } + }); + } + + document.documentElement.getButton("accept").label = + this.bundleBrowser.getString("sanitizeButtonOK"); + + this.selectByTimespan(); + }, + + /** + * Sets up the hashes this.durationValsToRows, which maps duration values + * to rows in the tree, this.durationRowsToVals, which maps rows in + * the tree to duration values, and this.durationStartTimes, which maps + * duration values to their corresponding start times. + */ + initDurationDropdown: function() { + // First, calculate the start times for each duration. + this.durationStartTimes = {}; + var durVals = []; + var durPopup = document.getElementById("sanitizeDurationPopup"); + var durMenuitems = durPopup.childNodes; + for (let i = 0; i < durMenuitems.length; i++) { + let durMenuitem = durMenuitems[i]; + let durVal = parseInt(durMenuitem.value); + if (durMenuitem.localName === "menuitem" && + durVal !== Sanitizer.TIMESPAN_EVERYTHING && + durVal !== this.TIMESPAN_CUSTOM) { + durVals.push(durVal); + let durTimes = Sanitizer.getClearRange(durVal); + this.durationStartTimes[durVal] = durTimes[0]; + } + } + + // Sort the duration values ascending. Because one tree index can map to + // more than one duration, this ensures that this.durationRowsToVals maps + // a row index to the largest duration possible in the code below. + durVals.sort(); + + // Now calculate the rows in the tree of the durations' start times. For + // each duration, we are looking for the node in the tree whose time is the + // smallest time greater than or equal to the duration's start time. + this.durationRowsToVals = {}; + this.durationValsToRows = {}; + var view = this.placesTree.view; + // For all rows in the tree except the grippy row... + for (let i = 0; i < view.rowCount - 1; i++) { + let unfoundDurVals = []; + let nodeTime = view.QueryInterface(Ci.nsINavHistoryResultTreeViewer) + .nodeForTreeIndex(i).time; + // For all durations whose rows have not yet been found in the tree, see + // if index i is their index. An index may map to more than one duration, + // in which case the final duration (the largest) wins. + for (let j = 0; j < durVals.length; j++) { + let durVal = durVals[j]; + let durStartTime = this.durationStartTimes[durVal]; + if (nodeTime < durStartTime) { + this.durationValsToRows[durVal] = i - 1; + this.durationRowsToVals[i - 1] = durVal; + } else { + unfoundDurVals.push(durVal); + } + } + durVals = unfoundDurVals; + } + + // If any durations were not found above, then every node in the tree has a + // time greater than or equal to the duration. In other words, those + // durations include the entire tree (except the grippy row). + for (let i = 0; i < durVals.length; i++) { + let durVal = durVals[i]; + this.durationValsToRows[durVal] = view.rowCount - 2; + this.durationRowsToVals[view.rowCount - 2] = durVal; + } + }, + + /** + * If the Places tree is not set up, sets it up. Otherwise does nothing. + */ + ensurePlacesTreeIsInited: function() { + if (this._placesTreeIsInited) { + return; + } + + this._placesTreeIsInited = true; + + // Either "Last Four Hours" or "Today" will have the most history. If + // it's been more than 4 hours since today began, "Today" will. Otherwise + // "Last Four Hours" will. + var times = Sanitizer.getClearRange(Sanitizer.TIMESPAN_TODAY); + + // If it's been less than 4 hours since today began, use the past 4 hours. + if (times[1] - times[0] < 14400000000) { // 4*60*60*1000000 + times = Sanitizer.getClearRange(Sanitizer.TIMESPAN_4HOURS); + } + + var histServ = Cc["@mozilla.org/browser/nav-history-service;1"] + .getService(Ci.nsINavHistoryService); + var query = histServ.getNewQuery(); + query.beginTimeReference = query.TIME_RELATIVE_EPOCH; + query.beginTime = times[0]; + query.endTimeReference = query.TIME_RELATIVE_EPOCH; + query.endTime = times[1]; + var opts = histServ.getNewQueryOptions(); + opts.sortingMode = opts.SORT_BY_DATE_DESCENDING; + opts.queryType = opts.QUERY_TYPE_HISTORY; + var result = histServ.executeQuery(query, opts); + + var view = gContiguousSelectionTreeHelper.setTree(this.placesTree, + new PlacesTreeView()); + result.addObserver(view, false); + this.initDurationDropdown(); + }, + + /** + * Called on select of the duration dropdown and when grippyMoved() sets a + * duration based on the location of the grippy row. Selects all the nodes in + * the tree that are contained in the selected duration. If clearing + * everything, the warning panel is shown instead. + */ + selectByTimespan: function() { + // This method is the onselect handler for the duration dropdown. As a + // result it's called a couple of times before onload calls init(). + if (!this._inited) { + return; + } + + var durDeck = document.getElementById("durationDeck"); + var durList = document.getElementById("sanitizeDurationChoice"); + var durVal = parseInt(durList.value); + var durCustom = document.getElementById("sanitizeDurationCustom"); + + // If grippy row is not at a duration boundary, show the custom menuitem; + // otherwise, hide it. Since the user cannot specify a custom duration by + // using the dropdown, this conditional is true only when this method is + // called onselect from grippyMoved(), so no selection need be made. + if (durVal === this.TIMESPAN_CUSTOM) { + durCustom.hidden = false; + return; + } + durCustom.hidden = true; + + // If clearing everything, show the warning and change the dialog's title. + if (durVal === Sanitizer.TIMESPAN_EVERYTHING) { + this.prepareWarning(); + durDeck.selectedIndex = 1; + window.document.title = this.bundleBrowser.getString("sanitizeDialog2.everything.title"); + document.documentElement.getButton("accept").disabled = false; + return; + } + + // Otherwise -- if clearing a specific time range -- select that time range in the tree. + this.ensurePlacesTreeIsInited(); + durDeck.selectedIndex = 0; + window.document.title = window.document.documentElement.getAttribute("noneverythingtitle"); + var durRow = this.durationValsToRows[durVal]; + gContiguousSelectionTreeHelper.rangedSelect(durRow); + gContiguousSelectionTreeHelper.scrollToGrippy(); + + // If duration is empty (there are no selected rows), disable the dialog's OK button. + document.documentElement.getButton("accept").disabled = durRow < 0; + }, + + sanitize: function() { + // Update pref values before handing off to the sanitizer (bug 453440) + this.updatePrefs(); + var s = new Sanitizer(); + s.prefDomain = "privacy.cpd."; + + var durList = document.getElementById("sanitizeDurationChoice"); + var durValue = parseInt(durList.value); + s.ignoreTimespan = durValue === Sanitizer.TIMESPAN_EVERYTHING; + + // Set the sanitizer's time range if we're not clearing everything. + if (!s.ignoreTimespan) { + // If user selected a custom timespan, use that. + if (durValue === this.TIMESPAN_CUSTOM) { + var view = this.placesTree.view; + var now = Date.now() * 1000; + // We disable the dialog's OK button if there's no selection, but we'll + // handle that case just in... case. + if (view.selection.getRangeCount() === 0) { + s.range = [now, now]; + } else { + var startIndexRef = {}; + // Tree sorted by visit date DEscending, so start time time comes last. + view.selection.getRangeAt(0, {}, startIndexRef); + view.QueryInterface(Ci.nsINavHistoryResultTreeViewer); + var startNode = view.nodeForTreeIndex(startIndexRef.value); + s.range = [startNode.time, now]; + } + } else { + // Use the predetermined range. + s.range = [this.durationStartTimes[durValue], Date.now() * 1000]; + } + } + + try { + s.sanitize(); + } catch(er) { + Components.utils.reportError("Exception during sanitize: " + er); + } + return true; + }, + + /** + * In order to mark the custom Places tree view and its nsINavHistoryResult + * for garbage collection, we need to break the reference cycle between the + * two. + */ + unload: function() { + let result = this.placesTree.getResult(); + result.removeObserver(this.placesTree.view); + this.placesTree.view = null; + }, + + /** + * Called when the user moves the grippy by dragging it, clicking in the tree, + * or on keypress. Updates the duration dropdown so that it displays the + * appropriate specific or custom duration. + * + * @param aEventName + * The name of the event whose handler called this method, e.g., + * "ondragstart", "onkeypress", etc. + * @param aEvent + * The event captured in the event handler. + */ + grippyMoved: function(aEventName, aEvent) { + gContiguousSelectionTreeHelper[aEventName](aEvent); + var lastSelRow = gContiguousSelectionTreeHelper.getGrippyRow() - 1; + var durList = document.getElementById("sanitizeDurationChoice"); + var durValue = parseInt(durList.value); + + // Multiple durations can map to the same row. Don't update the dropdown + // if the current duration is valid for lastSelRow. + if ((durValue !== this.TIMESPAN_CUSTOM || + lastSelRow in this.durationRowsToVals) && + (durValue === this.TIMESPAN_CUSTOM || + this.durationValsToRows[durValue] !== lastSelRow)) { + // Setting durList.value causes its onselect handler to fire, which calls + // selectByTimespan(). + if (lastSelRow in this.durationRowsToVals) { + durList.value = this.durationRowsToVals[lastSelRow]; + } else { + durList.value = this.TIMESPAN_CUSTOM; + } + } + + // If there are no selected rows, disable the dialog's OK button. + document.documentElement.getButton("accept").disabled = lastSelRow < 0; + } +#endif + +}; + +#ifdef CRH_DIALOG_TREE_VIEW +/** + * A helper for handling contiguous selection in the tree. + */ +var gContiguousSelectionTreeHelper = { + + /** + * Gets the tree associated with this helper. + */ + get tree() { + return this._tree; + }, + + /** + * Sets the tree that this module handles. The tree is assigned a new view + * that is equipped to handle contiguous selection. You can pass in an + * object that will be used as the prototype of the new view. Otherwise + * the tree's current view is used as the prototype. + * + * @param aTreeElement + * The tree element + * @param aProtoTreeView + * If defined, this will be used as the prototype of the tree's new + * view + * @return The new view + */ + setTree: function(aTreeElement, aProtoTreeView) { + this._tree = aTreeElement; + var newView = this._makeTreeView(aProtoTreeView || aTreeElement.view); + aTreeElement.view = newView; + return newView; + }, + + /** + * The index of the row that the grippy occupies. Note that the index of the + * last selected row is getGrippyRow() - 1. If getGrippyRow() is 0, then + * no selection exists. + * + * @return The row index of the grippy + */ + getGrippyRow: function() { + var sel = this.tree.view.selection; + var rangeCount = sel.getRangeCount(); + if (rangeCount === 0) { + return 0; + } + if (rangeCount !== 1) { + throw "contiguous selection tree helper: getGrippyRow called with " + + "multiple selection ranges"; + } + var max = {}; + sel.getRangeAt(0, {}, max); + return max.value + 1; + }, + + /** + * Helper function for the dragover event. Your dragover listener should + * call this. It updates the selection in the tree under the mouse. + * + * @param aEvent + * The observed dragover event + */ + ondragover: function(aEvent) { + // Without this when dragging on Windows the mouse cursor is a "no" sign. + // This makes it a drop symbol. + var ds = Cc["@mozilla.org/widget/dragservice;1"] + .getService(Ci.nsIDragService) + .getCurrentSession(); + ds.canDrop = true; + ds.dragAction = 0; + + var tbo = this.tree.treeBoxObject; + aEvent.QueryInterface(Ci.nsIDOMMouseEvent); + var hoverRow = tbo.getRowAt(aEvent.clientX, aEvent.clientY); + + if (hoverRow < 0) { + return; + } + + this.rangedSelect(hoverRow - 1); + }, + + /** + * Helper function for the dragstart event. Your dragstart listener should + * call this. It starts a drag session. + * + * @param aEvent + * The observed dragstart event + */ + ondragstart: function(aEvent) { + var tbo = this.tree.treeBoxObject; + var clickedRow = tbo.getRowAt(aEvent.clientX, aEvent.clientY); + + if (clickedRow !== this.getGrippyRow()) { + return; + } + + // This part is a hack. What we really want is a grab and slide, not + // drag and drop. Start a move drag session with dummy data and a + // dummy region. Set the region's coordinates to (Infinity, Infinity) + // so it's drawn offscreen and its size to (1, 1). + var arr = Cc["@mozilla.org/supports-array;1"] + .createInstance(Ci.nsISupportsArray); + var trans = Cc["@mozilla.org/widget/transferable;1"] + .createInstance(Ci.nsITransferable); + trans.init(null); + trans.setTransferData('dummy-flavor', null, 0); + arr.AppendElement(trans); + var reg = Cc["@mozilla.org/gfx/region;1"] + .createInstance(Ci.nsIScriptableRegion); + reg.setToRect(Infinity, Infinity, 1, 1); + var ds = Cc["@mozilla.org/widget/dragservice;1"] + .getService(Ci.nsIDragService); + ds.invokeDragSession(aEvent.target, arr, reg, ds.DRAGDROP_ACTION_MOVE); + }, + + /** + * Helper function for the keypress event. Your keypress listener should + * call this. Users can use Up, Down, Page Up/Down, Home, and End to move + * the bottom of the selection window. + * + * @param aEvent + * The observed keypress event + */ + onkeypress: function(aEvent) { + var grippyRow = this.getGrippyRow(); + var tbo = this.tree.treeBoxObject; + var rangeEnd; + switch (aEvent.keyCode) { + case aEvent.DOM_VK_HOME: + rangeEnd = 0; + break; + case aEvent.DOM_VK_PAGE_UP: + rangeEnd = grippyRow - tbo.getPageLength(); + break; + case aEvent.DOM_VK_UP: + rangeEnd = grippyRow - 2; + break; + case aEvent.DOM_VK_DOWN: + rangeEnd = grippyRow; + break; + case aEvent.DOM_VK_PAGE_DOWN: + rangeEnd = grippyRow + tbo.getPageLength(); + break; + case aEvent.DOM_VK_END: + rangeEnd = this.tree.view.rowCount - 2; + break; + default: + return; + break; + } + + aEvent.stopPropagation(); + + // First, clip rangeEnd. this.rangedSelect() doesn't clip the range if we + // select past the ends of the tree. + if (rangeEnd < 0) { + rangeEnd = -1; + } else if (this.tree.view.rowCount - 2 < rangeEnd) { + rangeEnd = this.tree.view.rowCount - 2; + } + + // Next, (de)select. + this.rangedSelect(rangeEnd); + + // Finally, scroll the tree. We always want one row above and below the + // grippy row to be visible if possible. + if (rangeEnd < grippyRow) { + // moved up + tbo.ensureRowIsVisible(rangeEnd < 0 ? 0 : rangeEnd); + } else { + // moved down + if (rangeEnd + 2 < this.tree.view.rowCount) { + tbo.ensureRowIsVisible(rangeEnd + 2); + } else if (rangeEnd + 1 < this.tree.view.rowCount) { + tbo.ensureRowIsVisible(rangeEnd + 1); + } + } + }, + + /** + * Helper function for the mousedown event. Your mousedown listener should + * call this. Users can click on individual rows to make the selection + * jump to them immediately. + * + * @param aEvent + * The observed mousedown event + */ + onmousedown: function(aEvent) { + var tbo = this.tree.treeBoxObject; + var clickedRow = tbo.getRowAt(aEvent.clientX, aEvent.clientY); + + if (clickedRow < 0 || clickedRow >= this.tree.view.rowCount) { + return; + } + + if (clickedRow < this.getGrippyRow()) { + this.rangedSelect(clickedRow); + } else if (clickedRow > this.getGrippyRow()) { + this.rangedSelect(clickedRow - 1); + } + }, + + /** + * Selects range [0, aEndRow] in the tree. The grippy row will then be at + * index aEndRow + 1. aEndRow may be -1, in which case the selection is + * cleared and the grippy row will be at index 0. + * + * @param aEndRow + * The range [0, aEndRow] will be selected. + */ + rangedSelect: function(aEndRow) { + var tbo = this.tree.treeBoxObject; + if (aEndRow < 0) { + this.tree.view.selection.clearSelection(); + } else { + this.tree.view.selection.rangedSelect(0, aEndRow, false); + } + tbo.invalidateRange(tbo.getFirstVisibleRow(), tbo.getLastVisibleRow()); + }, + + /** + * Scrolls the tree so that the grippy row is in the center of the view. + */ + scrollToGrippy: function() { + var rowCount = this.tree.view.rowCount; + var tbo = this.tree.treeBoxObject; + var pageLen = tbo.getPageLength() || + parseInt(this.tree.getAttribute("rows")) || + 10; + + if (rowCount <= pageLen) { + // All rows fit on a single page. + return; + } + + var scrollToRow = this.getGrippyRow() - Math.ceil(pageLen / 2.0); + + if (scrollToRow < 0) { + // Grippy row is in first half of first page. + scrollToRow = 0; + } else if (rowCount < scrollToRow + pageLen) { + // Grippy row is in last half of last page. + scrollToRow = rowCount - pageLen; + } + + tbo.scrollToRow(scrollToRow); + }, + + /** + * Creates a new tree view suitable for contiguous selection. If + * aProtoTreeView is specified, it's used as the new view's prototype. + * Otherwise the tree's current view is used as the prototype. + * + * @param aProtoTreeView + * Used as the new view's prototype if specified + */ + _makeTreeView: function(aProtoTreeView) { + var view = aProtoTreeView; + var that = this; + + //XXXadw: When Alex gets the grippy icon done, this may or may not change, + // depending on how we style it. + view.isSeparator = function(aRow) { + return aRow === that.getGrippyRow(); + }; + + // rowCount includes the grippy row. + view.__defineGetter__("_rowCount", view.__lookupGetter__("rowCount")); + view.__defineGetter__("rowCount", function() { + return this._rowCount + 1; + }); + + // This has to do with visual feedback in the view itself, e.g., drawing + // a small line underneath the dropzone. Not what we want. + view.canDrop = function() { + return false; + }; + + // No clicking headers to sort the tree or sort feedback on columns. + view.cycleHeader = function() {}; + view.sortingChanged = function() {}; + + // Override a bunch of methods to account for the grippy row. + + view._getCellProperties = view.getCellProperties; + view.getCellProperties = function (aRow, aCol) { + var grippyRow = that.getGrippyRow(); + if (aRow === grippyRow) { + return "grippyRow"; + } + if (aRow < grippyRow) { + return this._getCellProperties(aRow, aCol); + } + + return this._getCellProperties(aRow - 1, aCol); + }; + + view._getRowProperties = view.getRowProperties; + view.getRowProperties = function (aRow) { + var grippyRow = that.getGrippyRow(); + if (aRow === grippyRow) { + return "grippyRow"; + } + + if (aRow < grippyRow) { + return this._getRowProperties(aRow); + } + + return this._getRowProperties(aRow - 1); + }; + + view._getCellText = view.getCellText; + view.getCellText = function (aRow, aCol) { + var grippyRow = that.getGrippyRow(); + if (aRow === grippyRow) { + return ""; + } + aRow = aRow < grippyRow ? aRow : aRow - 1; + return this._getCellText(aRow, aCol); + }; + + view._getImageSrc = view.getImageSrc; + view.getImageSrc = function(aRow, aCol) { + var grippyRow = that.getGrippyRow(); + if (aRow === grippyRow) { + return ""; + } + aRow = aRow < grippyRow ? aRow : aRow - 1; + return this._getImageSrc(aRow, aCol); + }; + + view.isContainer = function(aRow) { return false; }; + view.getParentIndex = function(aRow) { return -1; }; + view.getLevel = function(aRow) { return 0; }; + view.hasNextSibling = function(aRow, aAfterIndex) { + return aRow < this.rowCount - 1; + }; + + return view; + } +}; +#endif |