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Improve key navigation for search results

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Select an item by default when the search results are displayed.

Enable moving from one section of search results to another with key navigation.

Reset the selection when the search is updated or a new page is displayed
or the transition between viewing multiple sections and viewing just one is made.
This commit is contained in:
Marina Zhurakhinskaya
2009-09-01 16:24:47 -04:00
parent 687814b6c6
commit 90381ceea2
2 changed files with 47 additions and 24 deletions
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25
js/ui/genericDisplay.js
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@ -426,7 +426,11 @@ GenericDisplay.prototype = {
// Returns true if the display has any displayed items.
hasItems: function() {
return this._list.displayedCount > 0;
// TODO: figure out why this._list.displayedCount is returning a
// positive number when this._mathedItems.length is 0
// This can be triggered if a search string is entered for which there are no matches.
// log("this._mathedItems.length: " + this._matchedItems.length + " this._list.displayedCount " + this._list.displayedCount);
return this._matchedItems.length > 0;
},
getMatchedItemsCount: function() {
@ -457,6 +461,10 @@ GenericDisplay.prototype = {
// Displays the page specified by the pageNumber argument.
displayPage: function(pageNumber) {
// Cleanup from the previous selection, but don't unset this._selectedIndex
if (this.hasSelected()) {
this._findDisplayedByIndex(this._selectedIndex).markSelected(false);
}
this._list.page = pageNumber;
},
@ -698,7 +706,6 @@ GenericDisplay.prototype = {
*/
_updateDisplayControl: function(resetDisplayControl) {
if (resetDisplayControl) {
this._selectedIndex = -1;
this.displayControl.remove_all();
let nPages = this._list.n_pages;
let pageNumber = this._list.page;
@ -730,6 +737,9 @@ GenericDisplay.prototype = {
}
}
}
if (this.hasSelected()) {
this.selectFirstItem();
}
},
// Returns a display item based on its index in the ordering of the
@ -754,17 +764,8 @@ GenericDisplay.prototype = {
// Selects (e.g. highlights) a display item at the provided index,
// updates this.selectedItemDetails actor, and emits 'selected' signal.
_selectIndex: function(index) {
if (index >= this._list.displayedCount)
return
// If the item is already selected, all we do is toggling the details pane.
if (this._selectedIndex == index && index >= 0) {
this.emit('details', index);
return;
}
// Cleanup from the previous item
if (this._selectedIndex >= 0) {
if (this.hasSelected()) {
this._findDisplayedByIndex(this._selectedIndex).markSelected(false);
}