351 lines
11 KiB
JavaScript
351 lines
11 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
|
|
/* exported SearchController */
|
|
|
|
const Clutter = imports.gi.Clutter;
|
|
const GObject = imports.gi.GObject;
|
|
const St = imports.gi.St;
|
|
|
|
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.connectObject('notify::key-focus',
|
|
this._onStageKeyFocusChanged.bind(this), 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;
|
|
}
|
|
|
|
/**
|
|
* addProvider:
|
|
*
|
|
* Add a search provider to the controller.
|
|
*
|
|
* @param {object} provider - a search provider implementation
|
|
*/
|
|
addProvider(provider) {
|
|
this._searchResults._registerProvider(provider);
|
|
}
|
|
|
|
/**
|
|
* removeProvider:
|
|
*
|
|
* Remove a search provider from the controller.
|
|
*
|
|
* @param {object} provider - a search provider implementation
|
|
*/
|
|
removeProvider(provider) {
|
|
this._searchResults._unregisterProvider(provider);
|
|
}
|
|
|
|
get searchActive() {
|
|
return this._searchActive;
|
|
}
|
|
});
|