520 lines
16 KiB
JavaScript
520 lines
16 KiB
JavaScript
// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
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/* exported ControlsManager */
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const { Clutter, GObject, Meta, St } = imports.gi;
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const Dash = imports.ui.dash;
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const Main = imports.ui.main;
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const Params = imports.misc.params;
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const ViewSelector = imports.ui.viewSelector;
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const WorkspaceThumbnail = imports.ui.workspaceThumbnail;
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const Overview = imports.ui.overview;
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var SIDE_CONTROLS_ANIMATION_TIME = Overview.ANIMATION_TIME;
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function getRtlSlideDirection(direction, actor) {
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let rtl = actor.text_direction == Clutter.TextDirection.RTL;
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if (rtl) {
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direction = direction == SlideDirection.LEFT
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? SlideDirection.RIGHT : SlideDirection.LEFT;
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}
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return direction;
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}
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var SlideDirection = {
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LEFT: 0,
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RIGHT: 1,
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};
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var SlideLayout = GObject.registerClass({
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Properties: {
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'slide-x': GObject.ParamSpec.double(
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'slide-x', 'slide-x', 'slide-x',
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GObject.ParamFlags.READWRITE,
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0, 1, 1),
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},
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}, class SlideLayout extends Clutter.FixedLayout {
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_init(params) {
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this._slideX = 1;
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this._direction = SlideDirection.LEFT;
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super._init(params);
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}
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vfunc_get_preferred_width(container, forHeight) {
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let child = container.get_first_child();
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let [minWidth, natWidth] = child.get_preferred_width(forHeight);
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minWidth *= this._slideX;
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natWidth *= this._slideX;
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return [minWidth, natWidth];
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}
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vfunc_allocate(container, box) {
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let child = container.get_first_child();
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let availWidth = Math.round(box.x2 - box.x1);
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let availHeight = Math.round(box.y2 - box.y1);
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let [, natWidth] = child.get_preferred_width(availHeight);
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// Align the actor inside the clipped box, as the actor's alignment
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// flags only determine what to do if the allocated box is bigger
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// than the actor's box.
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let realDirection = getRtlSlideDirection(this._direction, child);
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let alignX = realDirection == SlideDirection.LEFT
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? availWidth - natWidth
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: availWidth - natWidth * this._slideX;
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let actorBox = new Clutter.ActorBox();
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actorBox.x1 = box.x1 + alignX;
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actorBox.x2 = actorBox.x1 + (child.x_expand ? availWidth : natWidth);
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actorBox.y1 = box.y1;
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actorBox.y2 = actorBox.y1 + availHeight;
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child.allocate(actorBox);
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}
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// eslint-disable-next-line camelcase
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set slide_x(value) {
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if (this._slideX == value)
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return;
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this._slideX = value;
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this.notify('slide-x');
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this.layout_changed();
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}
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// eslint-disable-next-line camelcase
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get slide_x() {
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return this._slideX;
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}
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set slideDirection(direction) {
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this._direction = direction;
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this.layout_changed();
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}
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get slideDirection() {
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return this._direction;
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}
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});
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var SlidingControl = GObject.registerClass(
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class SlidingControl extends St.Widget {
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_init(params) {
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params = Params.parse(params, { slideDirection: SlideDirection.LEFT });
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this.layout = new SlideLayout();
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this.layout.slideDirection = params.slideDirection;
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super._init({
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layout_manager: this.layout,
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style_class: 'overview-controls',
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clip_to_allocation: true,
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});
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this._visible = true;
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this._inDrag = false;
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Main.overview.connect('hiding', this._onOverviewHiding.bind(this));
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Main.overview.connect('item-drag-begin', this._onDragBegin.bind(this));
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Main.overview.connect('item-drag-end', this._onDragEnd.bind(this));
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Main.overview.connect('item-drag-cancelled', this._onDragEnd.bind(this));
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Main.overview.connect('window-drag-begin', this._onWindowDragBegin.bind(this));
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Main.overview.connect('window-drag-cancelled', this._onWindowDragEnd.bind(this));
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Main.overview.connect('window-drag-end', this._onWindowDragEnd.bind(this));
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}
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_getSlide() {
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throw new GObject.NotImplementedError('_getSlide in %s'.format(this.constructor.name));
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}
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_updateSlide() {
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this.ease_property('@layout.slide-x', this._getSlide(), {
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mode: Clutter.AnimationMode.EASE_OUT_QUAD,
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duration: SIDE_CONTROLS_ANIMATION_TIME,
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});
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}
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getVisibleWidth() {
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let child = this.get_first_child();
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let [, , natWidth] = child.get_preferred_size();
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return natWidth;
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}
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_getTranslation() {
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let child = this.get_first_child();
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let direction = getRtlSlideDirection(this.layout.slideDirection, child);
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let visibleWidth = this.getVisibleWidth();
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if (direction == SlideDirection.LEFT)
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return -visibleWidth;
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else
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return visibleWidth;
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}
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_updateTranslation() {
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let translationStart = 0;
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let translationEnd = 0;
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let translation = this._getTranslation();
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let shouldShow = this._getSlide() > 0;
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if (shouldShow)
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translationStart = translation;
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else
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translationEnd = translation;
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if (this.translation_x === translationEnd)
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return;
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this.translation_x = translationStart;
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this.ease({
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translation_x: translationEnd,
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mode: Clutter.AnimationMode.EASE_OUT_QUAD,
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duration: SIDE_CONTROLS_ANIMATION_TIME,
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});
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}
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_onOverviewHiding() {
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// We need to explicitly slideOut since showing pages
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// doesn't imply sliding out, instead, hiding the overview does.
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this.slideOut();
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}
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_onWindowDragBegin() {
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this._onDragBegin();
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}
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_onWindowDragEnd() {
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this._onDragEnd();
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}
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_onDragBegin() {
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this._inDrag = true;
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this._updateTranslation();
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this._updateSlide();
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}
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_onDragEnd() {
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this._inDrag = false;
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this._updateSlide();
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}
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fadeIn() {
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this.ease({
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opacity: 255,
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duration: SIDE_CONTROLS_ANIMATION_TIME / 2,
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mode: Clutter.AnimationMode.EASE_IN_QUAD,
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});
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}
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fadeHalf() {
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this.ease({
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opacity: 128,
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duration: SIDE_CONTROLS_ANIMATION_TIME / 2,
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mode: Clutter.AnimationMode.EASE_OUT_QUAD,
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});
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}
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slideIn() {
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this._visible = true;
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// we will update slide_x and the translation from pageEmpty
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}
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slideOut() {
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this._visible = false;
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this._updateTranslation();
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// we will update slide_x from pageEmpty
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}
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pageEmpty() {
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// When pageEmpty is received, there's no visible view in the
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// selector; this means we can now safely set the full slide for
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// the next page, since slideIn or slideOut might have been called,
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// changing the visiblity
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this.remove_transition('@layout.slide-x');
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this.layout.slide_x = this._getSlide();
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this._updateTranslation();
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}
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});
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var ThumbnailsSlider = GObject.registerClass(
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class ThumbnailsSlider extends SlidingControl {
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_init(thumbnailsBox) {
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super._init({ slideDirection: SlideDirection.RIGHT });
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this._thumbnailsBox = thumbnailsBox;
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this.request_mode = Clutter.RequestMode.WIDTH_FOR_HEIGHT;
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this.reactive = true;
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this.track_hover = true;
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this.add_actor(this._thumbnailsBox);
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Main.layoutManager.connect('monitors-changed', this._updateSlide.bind(this));
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global.workspace_manager.connect('active-workspace-changed',
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this._updateSlide.bind(this));
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global.workspace_manager.connect('notify::n-workspaces',
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this._updateSlide.bind(this));
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this.connect('notify::hover', this._updateSlide.bind(this));
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this._thumbnailsBox.bind_property('visible', this, 'visible', GObject.BindingFlags.SYNC_CREATE);
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}
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_getAlwaysZoomOut() {
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// Always show the pager on hover, during a drag, or if workspaces are
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// actually used, e.g. there are windows on any non-active workspace
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let workspaceManager = global.workspace_manager;
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let alwaysZoomOut = this.hover ||
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this._inDrag ||
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!Meta.prefs_get_dynamic_workspaces() ||
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workspaceManager.n_workspaces > 2 ||
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workspaceManager.get_active_workspace_index() != 0;
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if (!alwaysZoomOut) {
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let monitors = Main.layoutManager.monitors;
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let primary = Main.layoutManager.primaryMonitor;
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/* Look for any monitor to the right of the primary, if there is
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* one, we always keep zoom out, otherwise its hard to reach
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* the thumbnail area without passing into the next monitor. */
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for (let i = 0; i < monitors.length; i++) {
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if (monitors[i].x >= primary.x + primary.width) {
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alwaysZoomOut = true;
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break;
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}
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}
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}
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return alwaysZoomOut;
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}
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getNonExpandedWidth() {
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let child = this.get_first_child();
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return child.get_theme_node().get_length('visible-width');
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}
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_onDragEnd() {
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this.sync_hover();
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super._onDragEnd();
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}
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_getSlide() {
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if (!this._visible)
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return 0;
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let alwaysZoomOut = this._getAlwaysZoomOut();
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if (alwaysZoomOut)
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return 1;
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let child = this.get_first_child();
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let preferredHeight = child.get_preferred_height(-1)[1];
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let expandedWidth = child.get_preferred_width(preferredHeight)[1];
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return this.getNonExpandedWidth() / expandedWidth;
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}
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getVisibleWidth() {
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let alwaysZoomOut = this._getAlwaysZoomOut();
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if (alwaysZoomOut)
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return super.getVisibleWidth();
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else
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return this.getNonExpandedWidth();
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}
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});
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var DashSlider = GObject.registerClass(
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class DashSlider extends SlidingControl {
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_init(dash) {
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super._init({ slideDirection: SlideDirection.LEFT });
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this._dash = dash;
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// SlideLayout reads the actor's expand flags to decide
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// whether to allocate the natural size to its child, or the whole
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// available allocation
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this._dash.x_expand = true;
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this.x_expand = true;
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this.x_align = Clutter.ActorAlign.START;
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this.y_expand = true;
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this.add_actor(this._dash);
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this._dash.connect('icon-size-changed', this._updateSlide.bind(this));
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}
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_getSlide() {
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if (this._visible || this._inDrag)
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return 1;
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else
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return 0;
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}
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_onWindowDragBegin() {
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this.fadeHalf();
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}
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_onWindowDragEnd() {
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this.fadeIn();
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}
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});
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var DashSpacer = GObject.registerClass(
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class DashSpacer extends St.Widget {
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_init(params) {
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super._init(params);
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this._bindConstraint = null;
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}
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setDashActor(dashActor) {
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if (this._bindConstraint) {
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this.remove_constraint(this._bindConstraint);
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this._bindConstraint = null;
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}
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if (dashActor) {
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this._bindConstraint = new Clutter.BindConstraint({ source: dashActor,
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coordinate: Clutter.BindCoordinate.SIZE });
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this.add_constraint(this._bindConstraint);
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}
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}
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vfunc_get_preferred_width(forHeight) {
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if (this._bindConstraint)
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return this._bindConstraint.source.get_preferred_width(forHeight);
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return super.vfunc_get_preferred_width(forHeight);
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}
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vfunc_get_preferred_height(forWidth) {
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if (this._bindConstraint)
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return this._bindConstraint.source.get_preferred_height(forWidth);
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return super.vfunc_get_preferred_height(forWidth);
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}
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});
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var ControlsLayout = GObject.registerClass({
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Signals: { 'allocation-changed': {} },
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}, class ControlsLayout extends Clutter.BinLayout {
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vfunc_allocate(container, box) {
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super.vfunc_allocate(container, box);
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this.emit('allocation-changed');
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}
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});
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var ControlsManager = GObject.registerClass(
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class ControlsManager extends St.Widget {
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_init(searchEntry) {
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let layout = new ControlsLayout();
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super._init({
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layout_manager: layout,
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x_expand: true,
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y_expand: true,
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clip_to_allocation: true,
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});
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this.dash = new Dash.Dash();
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this._dashSlider = new DashSlider(this.dash);
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this._dashSpacer = new DashSpacer();
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this._dashSpacer.setDashActor(this._dashSlider);
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let workspaceManager = global.workspace_manager;
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let activeWorkspaceIndex = workspaceManager.get_active_workspace_index();
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this._workspaceAdjustment = new St.Adjustment({
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actor: this,
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value: activeWorkspaceIndex,
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lower: 0,
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page_increment: 1,
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page_size: 1,
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step_increment: 0,
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upper: workspaceManager.n_workspaces,
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});
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this._nWorkspacesNotifyId =
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workspaceManager.connect('notify::n-workspaces',
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this._updateAdjustment.bind(this));
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this._thumbnailsBox =
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new WorkspaceThumbnail.ThumbnailsBox(this._workspaceAdjustment);
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this._thumbnailsSlider = new ThumbnailsSlider(this._thumbnailsBox);
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this.viewSelector = new ViewSelector.ViewSelector(searchEntry,
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this._workspaceAdjustment, this.dash.showAppsButton);
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this.viewSelector.connect('page-changed', this._setVisibility.bind(this));
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this.viewSelector.connect('page-empty', this._onPageEmpty.bind(this));
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this._group = new St.BoxLayout({ name: 'overview-group',
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x_expand: true, y_expand: true });
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this.add_actor(this._group);
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this.add_actor(this._dashSlider);
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this._group.add_actor(this._dashSpacer);
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this._group.add_child(this.viewSelector);
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this._group.add_actor(this._thumbnailsSlider);
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Main.overview.connect('showing', this._updateSpacerVisibility.bind(this));
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this.connect('destroy', this._onDestroy.bind(this));
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}
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_onDestroy() {
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global.workspace_manager.disconnect(this._nWorkspacesNotifyId);
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}
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_updateAdjustment() {
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let workspaceManager = global.workspace_manager;
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let newNumWorkspaces = workspaceManager.n_workspaces;
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let activeIndex = workspaceManager.get_active_workspace_index();
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this._workspaceAdjustment.upper = newNumWorkspaces;
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// A workspace might have been inserted or removed before the active
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// one, causing the adjustment to go out of sync, so update the value
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this._workspaceAdjustment.remove_transition('value');
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this._workspaceAdjustment.value = activeIndex;
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}
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_setVisibility() {
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// Ignore the case when we're leaving the overview, since
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// actors will be made visible again when entering the overview
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// next time, and animating them while doing so is just
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// unnecessary noise
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if (!Main.overview.visible ||
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(Main.overview.animationInProgress && !Main.overview.visibleTarget))
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return;
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let activePage = this.viewSelector.getActivePage();
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let dashVisible = activePage == ViewSelector.ViewPage.WINDOWS ||
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activePage == ViewSelector.ViewPage.APPS;
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let thumbnailsVisible = activePage == ViewSelector.ViewPage.WINDOWS;
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if (dashVisible)
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this._dashSlider.slideIn();
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else
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this._dashSlider.slideOut();
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if (thumbnailsVisible)
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this._thumbnailsSlider.slideIn();
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else
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this._thumbnailsSlider.slideOut();
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}
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_updateSpacerVisibility() {
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if (Main.overview.animationInProgress && !Main.overview.visibleTarget)
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return;
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let activePage = this.viewSelector.getActivePage();
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this._dashSpacer.visible = activePage == ViewSelector.ViewPage.WINDOWS;
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}
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_onPageEmpty() {
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this._dashSlider.pageEmpty();
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this._thumbnailsSlider.pageEmpty();
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this._updateSpacerVisibility();
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}
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});
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