summaryrefslogtreecommitdiffstats
path: root/js/ui/searchController.js
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--js/ui/searchController.js325
1 files changed, 325 insertions, 0 deletions
diff --git a/js/ui/searchController.js b/js/ui/searchController.js
new file mode 100644
index 0000000..ba743a9
--- /dev/null
+++ b/js/ui/searchController.js
@@ -0,0 +1,325 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+/* exported SearchController */
+
+const { Clutter, GObject, St } = imports.gi;
+
+const Main = imports.ui.main;
+const Search = imports.ui.search;
+const ShellEntry = imports.ui.shellEntry;
+
+var FocusTrap = GObject.registerClass(
+class FocusTrap extends St.Widget {
+ vfunc_navigate_focus(from, direction) {
+ if (direction === St.DirectionType.TAB_FORWARD ||
+ direction === St.DirectionType.TAB_BACKWARD)
+ return super.vfunc_navigate_focus(from, direction);
+ return false;
+ }
+});
+
+function getTermsForSearchString(searchString) {
+ searchString = searchString.replace(/^\s+/g, '').replace(/\s+$/g, '');
+ if (searchString === '')
+ return [];
+ return searchString.split(/\s+/);
+}
+
+var SearchController = GObject.registerClass({
+ Properties: {
+ 'search-active': GObject.ParamSpec.boolean(
+ 'search-active', 'search-active', 'search-active',
+ GObject.ParamFlags.READABLE,
+ false),
+ },
+}, class SearchController extends St.Widget {
+ _init(searchEntry, showAppsButton) {
+ super._init({
+ name: 'searchController',
+ layout_manager: new Clutter.BinLayout(),
+ x_expand: true,
+ y_expand: true,
+ visible: false,
+ });
+
+ this._showAppsButton = showAppsButton;
+ this._showAppsButton.connect('notify::checked', this._onShowAppsButtonToggled.bind(this));
+
+ this._activePage = null;
+
+ this._searchActive = false;
+
+ this._entry = searchEntry;
+ ShellEntry.addContextMenu(this._entry);
+
+ this._text = this._entry.clutter_text;
+ this._text.connect('text-changed', this._onTextChanged.bind(this));
+ this._text.connect('key-press-event', this._onKeyPress.bind(this));
+ this._text.connect('key-focus-in', () => {
+ this._searchResults.highlightDefault(true);
+ });
+ this._text.connect('key-focus-out', () => {
+ this._searchResults.highlightDefault(false);
+ });
+ this._entry.connect('popup-menu', () => {
+ if (!this._searchActive)
+ return;
+
+ this._entry.menu.close();
+ this._searchResults.popupMenuDefault();
+ });
+ this._entry.connect('notify::mapped', this._onMapped.bind(this));
+ global.stage.connect('notify::key-focus', this._onStageKeyFocusChanged.bind(this));
+
+ this._entry.set_primary_icon(new St.Icon({
+ style_class: 'search-entry-icon',
+ icon_name: 'edit-find-symbolic',
+ }));
+ this._clearIcon = new St.Icon({
+ style_class: 'search-entry-icon',
+ icon_name: 'edit-clear-symbolic',
+ });
+
+ this._iconClickedId = 0;
+ this._capturedEventId = 0;
+
+ this._searchResults = new Search.SearchResultsView();
+ this.add_child(this._searchResults);
+ Main.ctrlAltTabManager.addGroup(this._entry, _('Search'), 'edit-find-symbolic');
+
+ // Since the entry isn't inside the results container we install this
+ // dummy widget as the last results container child so that we can
+ // include the entry in the keynav tab path
+ this._focusTrap = new FocusTrap({ can_focus: true });
+ this._focusTrap.connect('key-focus-in', () => {
+ this._entry.grab_key_focus();
+ });
+ this._searchResults.add_actor(this._focusTrap);
+
+ global.focus_manager.add_group(this._searchResults);
+
+ this._stageKeyPressId = 0;
+ Main.overview.connect('showing', () => {
+ this._stageKeyPressId =
+ global.stage.connect('key-press-event', this._onStageKeyPress.bind(this));
+ });
+ Main.overview.connect('hiding', () => {
+ if (this._stageKeyPressId !== 0) {
+ global.stage.disconnect(this._stageKeyPressId);
+ this._stageKeyPressId = 0;
+ }
+ });
+ }
+
+ prepareToEnterOverview() {
+ this.reset();
+ this._setSearchActive(false);
+ }
+
+ vfunc_unmap() {
+ this.reset();
+
+ super.vfunc_unmap();
+ }
+
+ _setSearchActive(searchActive) {
+ if (this._searchActive === searchActive)
+ return;
+
+ this._searchActive = searchActive;
+ this.notify('search-active');
+ }
+
+ _onShowAppsButtonToggled() {
+ this._setSearchActive(false);
+ }
+
+ _onStageKeyPress(actor, event) {
+ // Ignore events while anything but the overview has
+ // pushed a modal (system modals, looking glass, ...)
+ if (Main.modalCount > 1)
+ return Clutter.EVENT_PROPAGATE;
+
+ let symbol = event.get_key_symbol();
+
+ if (symbol === Clutter.KEY_Escape) {
+ if (this._searchActive)
+ this.reset();
+ else if (this._showAppsButton.checked)
+ this._showAppsButton.checked = false;
+ else
+ Main.overview.hide();
+ return Clutter.EVENT_STOP;
+ } else if (this._shouldTriggerSearch(symbol)) {
+ this.startSearch(event);
+ }
+ return Clutter.EVENT_PROPAGATE;
+ }
+
+ _searchCancelled() {
+ this._setSearchActive(false);
+
+ // Leave the entry focused when it doesn't have any text;
+ // when replacing a selected search term, Clutter emits
+ // two 'text-changed' signals, one for deleting the previous
+ // text and one for the new one - the second one is handled
+ // incorrectly when we remove focus
+ // (https://bugzilla.gnome.org/show_bug.cgi?id=636341) */
+ if (this._text.text !== '')
+ this.reset();
+ }
+
+ reset() {
+ // Don't drop the key focus on Clutter's side if anything but the
+ // overview has pushed a modal (e.g. system modals when activated using
+ // the overview).
+ if (Main.modalCount <= 1)
+ global.stage.set_key_focus(null);
+
+ this._entry.text = '';
+
+ this._text.set_cursor_visible(true);
+ this._text.set_selection(0, 0);
+ }
+
+ _onStageKeyFocusChanged() {
+ let focus = global.stage.get_key_focus();
+ let appearFocused = this._entry.contains(focus) ||
+ this._searchResults.contains(focus);
+
+ this._text.set_cursor_visible(appearFocused);
+
+ if (appearFocused)
+ this._entry.add_style_pseudo_class('focus');
+ else
+ this._entry.remove_style_pseudo_class('focus');
+ }
+
+ _onMapped() {
+ if (this._entry.mapped) {
+ // Enable 'find-as-you-type'
+ this._capturedEventId =
+ global.stage.connect('captured-event', this._onCapturedEvent.bind(this));
+ this._text.set_cursor_visible(true);
+ this._text.set_selection(0, 0);
+ } else {
+ // Disable 'find-as-you-type'
+ if (this._capturedEventId > 0)
+ global.stage.disconnect(this._capturedEventId);
+ this._capturedEventId = 0;
+ }
+ }
+
+ _shouldTriggerSearch(symbol) {
+ if (symbol === Clutter.KEY_Multi_key)
+ return true;
+
+ if (symbol === Clutter.KEY_BackSpace && this._searchActive)
+ return true;
+
+ let unicode = Clutter.keysym_to_unicode(symbol);
+ if (unicode === 0)
+ return false;
+
+ if (getTermsForSearchString(String.fromCharCode(unicode)).length > 0)
+ return true;
+
+ return false;
+ }
+
+ startSearch(event) {
+ global.stage.set_key_focus(this._text);
+ this._text.event(event, false);
+ }
+
+ // the entry does not show the hint
+ _isActivated() {
+ return this._text.text === this._entry.get_text();
+ }
+
+ _onTextChanged() {
+ let terms = getTermsForSearchString(this._entry.get_text());
+
+ const searchActive = terms.length > 0;
+ this._searchResults.setTerms(terms);
+
+ if (searchActive) {
+ this._setSearchActive(true);
+
+ this._entry.set_secondary_icon(this._clearIcon);
+
+ if (this._iconClickedId === 0) {
+ this._iconClickedId =
+ this._entry.connect('secondary-icon-clicked', this.reset.bind(this));
+ }
+ } else {
+ if (this._iconClickedId > 0) {
+ this._entry.disconnect(this._iconClickedId);
+ this._iconClickedId = 0;
+ }
+
+ this._entry.set_secondary_icon(null);
+ this._searchCancelled();
+ }
+ }
+
+ _onKeyPress(entry, event) {
+ let symbol = event.get_key_symbol();
+ if (symbol === Clutter.KEY_Escape) {
+ if (this._isActivated()) {
+ this.reset();
+ return Clutter.EVENT_STOP;
+ }
+ } else if (this._searchActive) {
+ let arrowNext, nextDirection;
+ if (entry.get_text_direction() === Clutter.TextDirection.RTL) {
+ arrowNext = Clutter.KEY_Left;
+ nextDirection = St.DirectionType.LEFT;
+ } else {
+ arrowNext = Clutter.KEY_Right;
+ nextDirection = St.DirectionType.RIGHT;
+ }
+
+ if (symbol === Clutter.KEY_Tab) {
+ this._searchResults.navigateFocus(St.DirectionType.TAB_FORWARD);
+ return Clutter.EVENT_STOP;
+ } else if (symbol === Clutter.KEY_ISO_Left_Tab) {
+ this._focusTrap.can_focus = false;
+ this._searchResults.navigateFocus(St.DirectionType.TAB_BACKWARD);
+ this._focusTrap.can_focus = true;
+ return Clutter.EVENT_STOP;
+ } else if (symbol === Clutter.KEY_Down) {
+ this._searchResults.navigateFocus(St.DirectionType.DOWN);
+ return Clutter.EVENT_STOP;
+ } else if (symbol === arrowNext && this._text.position === -1) {
+ this._searchResults.navigateFocus(nextDirection);
+ return Clutter.EVENT_STOP;
+ } else if (symbol === Clutter.KEY_Return || symbol === Clutter.KEY_KP_Enter) {
+ this._searchResults.activateDefault();
+ return Clutter.EVENT_STOP;
+ }
+ }
+ return Clutter.EVENT_PROPAGATE;
+ }
+
+ _onCapturedEvent(actor, event) {
+ if (event.type() === Clutter.EventType.BUTTON_PRESS) {
+ const targetActor = global.stage.get_event_actor(event);
+ if (targetActor !== this._text &&
+ this._text.has_key_focus() &&
+ this._text.text === '' &&
+ !this._text.has_preedit() &&
+ !Main.layoutManager.keyboardBox.contains(targetActor)) {
+ // the user clicked outside after activating the entry, but
+ // with no search term entered and no keyboard button pressed
+ // - cancel the search
+ this.reset();
+ }
+ }
+
+ return Clutter.EVENT_PROPAGATE;
+ }
+
+ get searchActive() {
+ return this._searchActive;
+ }
+});