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windowPreview.js
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/*
* This file is part of the Dash-To-Panel extension for Gnome 3
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
const Clutter = imports.gi.Clutter;
const Config = imports.misc.config;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;
const Main = imports.ui.main;
const Mainloop = imports.mainloop;
const Meta = imports.gi.Meta;
const PopupMenu = imports.ui.popupMenu;
const Signals = imports.signals;
const St = imports.gi.St;
const WindowManager = imports.ui.windowManager;
const Workspace = imports.ui.workspace;
const Me = imports.misc.extensionUtils.getCurrentExtension();
const Panel = Me.imports.panel;
const Taskbar = Me.imports.taskbar;
const Utils = Me.imports.utils;
//timeout intervals
const ENSURE_VISIBLE_MS = 200;
//timeout names
const T1 = 'openMenuTimeout';
const T2 = 'closeMenuTimeout';
const T3 = 'peekTimeout';
const T4 = 'ensureVisibleTimeout';
const MAX_TRANSLATION = 40;
const HEADER_HEIGHT = 38;
const MAX_CLOSE_BUTTON_SIZE = 30;
const MIN_DIMENSION = 100;
const FOCUSED_COLOR_OFFSET = 24;
const HEADER_COLOR_OFFSET = -12;
const FADE_SIZE = 36;
const PEEK_INDEX_PROP = '_dtpPeekInitialIndex';
let headerHeight = 0;
let alphaBg = 0;
let isLeftButtons = false;
let isTopHeader = true;
let isManualStyling = false;
let scaleFactor = 1;
let animationTime = 0;
let aspectRatio = {};
var PreviewMenu = Utils.defineClass({
Name: 'DashToPanel-PreviewMenu',
Extends: St.Widget,
Signals: { 'open-state-changed': {} },
_init: function(panel) {
this.callParent('_init', { layout_manager: new Clutter.BinLayout() });
let geom = panel.geom;
this.panel = panel;
this.currentAppIcon = null;
this._focusedPreview = null;
this._peekedWindow = null;
this.peekInitialWorkspaceIndex = -1;
this.opened = false;
this.isVertical = geom.position == St.Side.LEFT || geom.position == St.Side.RIGHT;
this._translationProp = 'translation_' + (this.isVertical ? 'x' : 'y');
this._translationDirection = (geom.position == St.Side.TOP || geom.position == St.Side.LEFT ? -1 : 1);
this._translationOffset = Math.min(panel.dtpSize, MAX_TRANSLATION) * this._translationDirection;
this.menu = new St.Widget({
name: 'preview-menu',
layout_manager: new Clutter.BinLayout(),
reactive: true,
track_hover: true,
x_expand: true,
y_expand: true,
x_align: Clutter.ActorAlign[geom.position != St.Side.RIGHT ? 'START' : 'END'],
y_align: Clutter.ActorAlign[geom.position != St.Side.BOTTOM ? 'START' : 'END']
});
this._box = new St.BoxLayout({ vertical: this.isVertical });
this._scrollView = new St.ScrollView({
name: 'dashtopanelPreviewScrollview',
hscrollbar_policy: Gtk.PolicyType.NEVER,
vscrollbar_policy: Gtk.PolicyType.NEVER,
enable_mouse_scrolling: true,
y_expand: !this.isVertical
});
this._scrollView.add_actor(this._box);
this.menu.add_child(this._scrollView);
this.add_child(this.menu);
},
enable: function() {
this._timeoutsHandler = new Utils.TimeoutsHandler();
this._signalsHandler = new Utils.GlobalSignalsHandler();
Main.layoutManager.addChrome(this, { affectsInputRegion: false });
Main.layoutManager.trackChrome(this.menu, { affectsInputRegion: true });
this._resetHiddenState();
this._refreshGlobals();
this._updateClip();
this.menu.set_position(1, 1);
this._signalsHandler.add(
[
this.menu,
'notify::hover',
() => this._onHoverChanged()
],
[
this._scrollView,
'scroll-event',
this._onScrollEvent.bind(this)
],
[
this.panel.panelBox,
'style-changed',
() => this._updateClip()
],
[
Utils.DisplayWrapper.getScreen(),
'in-fullscreen-changed',
() => {
if (global.display.focus_window && global.display.focus_window.is_fullscreen()) {
this.close(true);
}
}
],
[
Me.settings,
[
'changed::panel-sizes',
'changed::window-preview-size',
'changed::window-preview-padding',
'changed::window-preview-show-title'
],
() => {
this._refreshGlobals();
this._updateClip();
}
]
);
},
disable: function() {
this._timeoutsHandler.destroy();
this._signalsHandler.destroy();
this.close(true);
Main.layoutManager.untrackChrome(this.menu);
Main.layoutManager.removeChrome(this);
},
requestOpen: function(appIcon) {
let timeout = Me.settings.get_int('show-window-previews-timeout');
if (this.opened) {
timeout = Math.min(100, timeout);
}
this._endOpenCloseTimeouts();
this._timeoutsHandler.add([T1, timeout, () => this.open(appIcon)]);
},
requestClose: function() {
this._endOpenCloseTimeouts();
this._addCloseTimeout();
},
open: function(appIcon) {
if (this.currentAppIcon != appIcon) {
this.currentAppIcon = appIcon;
if (!this.opened) {
this._refreshGlobals();
this.set_height(this.clipHeight);
this.menu.show();
setStyle(this.menu, 'background: ' + Utils.getrgbaColor(this.panel.dynamicTransparency.backgroundColorRgb, alphaBg));
}
this._mergeWindows(appIcon);
this._updatePosition();
this._animateOpenOrClose(true);
this._setReactive(true);
this._setOpenedState(true);
}
},
close: function(immediate) {
this._endOpenCloseTimeouts();
this._removeFocus();
this._endPeek();
if (immediate) {
Utils.stopAnimations(this.menu);
this._resetHiddenState();
} else {
this._animateOpenOrClose(false, () => this._resetHiddenState());
}
this._setReactive(false);
this.currentAppIcon = null;
},
update: function(appIcon, windows) {
if (this.currentAppIcon == appIcon) {
if (windows && !windows.length) {
this.close();
} else {
this._addAndRemoveWindows(windows);
this._updatePosition();
}
}
},
updatePosition: function() {
this._updatePosition();
},
focusNext: function() {
let previews = this._box.get_children();
let currentIndex = this._focusedPreview ? previews.indexOf(this._focusedPreview) : -1;
let nextIndex = currentIndex + 1;
nextIndex = previews[nextIndex] ? nextIndex : 0;
if (previews[nextIndex]) {
this._removeFocus();
previews[nextIndex].setFocus(true);
this._focusedPreview = previews[nextIndex];
}
return nextIndex;
},
activateFocused: function() {
if (this.opened && this._focusedPreview) {
this._focusedPreview.activate();
}
},
requestPeek: function(window) {
this._timeoutsHandler.remove(T3);
if (Me.settings.get_boolean('peek-mode')) {
if (this.peekInitialWorkspaceIndex < 0) {
this._timeoutsHandler.add([T3, Me.settings.get_int('enter-peek-mode-timeout'), () => this._peek(window)]);
} else {
this._peek(window);
}
}
},
endPeekHere: function() {
this._endPeek(true);
},
ensureVisible: function(preview) {
let [ , upper, pageSize] = this._getScrollAdjustmentValues();
if (upper > pageSize) {
this._timeoutsHandler.add([
T4,
ENSURE_VISIBLE_MS,
() => Utils.ensureActorVisibleInScrollView(this._scrollView, preview, MIN_DIMENSION, () => this._updateScrollFade())
]);
}
},
getCurrentAppIcon: function() {
return this.currentAppIcon;
},
_setReactive: function(reactive) {
this._box.get_children().forEach(c => c.reactive = reactive);
this.menu.reactive = reactive;
},
_setOpenedState: function(opened) {
this.opened = opened;
this.emit('open-state-changed');
},
_resetHiddenState: function() {
this.menu.hide();
this.set_height(0);
this._setOpenedState(false);
this.menu.opacity = 0;
this.menu[this._translationProp] = this._translationOffset;
this._box.get_children().forEach(c => c.destroy());
},
_removeFocus: function() {
if (this._focusedPreview) {
this._focusedPreview.setFocus(false);
this._focusedPreview = null;
}
},
_mergeWindows: function(appIcon, windows) {
windows = windows || (appIcon.window ? [appIcon.window] : appIcon.getAppIconInterestingWindows());
windows.sort(Taskbar.sortWindowsCompareFunction);
let currentPreviews = this._box.get_children();
let l = Math.max(windows.length, currentPreviews.length);
for (let i = 0; i < l; ++i) {
if (currentPreviews[i] && windows[i]) {
currentPreviews[i].assignWindow(windows[i], this.opened);
} else if (!currentPreviews[i]) {
this._addNewPreview(windows[i]);
} else if (!windows[i]) {
currentPreviews[i][!this.opened ? 'destroy' : 'animateOut']();
}
}
},
_addAndRemoveWindows: function(windows) {
let currentPreviews = this._box.get_children();
windows.sort(Taskbar.sortWindowsCompareFunction);
for (let i = 0, l = windows.length; i < l; ++i) {
let currentIndex = Utils.findIndex(currentPreviews, c => c.window == windows[i]);
if (currentIndex < 0) {
this._addNewPreview(windows[i]);
} else {
currentPreviews[currentIndex].assignWindow(windows[i]);
currentPreviews.splice(currentIndex, 1);
if (this._peekedWindow && this._peekedWindow == windows[i]) {
this.requestPeek(windows[i]);
}
}
}
currentPreviews.forEach(c => c.animateOut());
},
_addNewPreview: function(window) {
let preview = new Preview(this);
this._box.add_child(preview);
preview.adjustOnStage();
preview.assignWindow(window, this.opened);
},
_addCloseTimeout: function() {
this._timeoutsHandler.add([T2, Me.settings.get_int('leave-timeout'), () => this.close()]);
},
_onHoverChanged: function() {
this._endOpenCloseTimeouts();
if (this.currentAppIcon && !this.menu.hover) {
this._addCloseTimeout();
this._endPeek();
}
},
_onScrollEvent: function(actor, event) {
if (!event.is_pointer_emulated()) {
let vOrh = this.isVertical ? 'v' : 'h';
let adjustment = this._scrollView['get_' + vOrh + 'scroll_bar']().get_adjustment();
let increment = adjustment.step_increment;
let delta = increment;
switch (event.get_scroll_direction()) {
case Clutter.ScrollDirection.UP:
delta = -increment;
break;
case Clutter.ScrollDirection.SMOOTH:
let [dx, dy] = event.get_scroll_delta();
delta = dy * increment;
delta += dx * increment;
break;
}
adjustment.set_value(adjustment.get_value() + delta);
this._updateScrollFade();
}
return Clutter.EVENT_STOP;
},
_endOpenCloseTimeouts: function() {
this._timeoutsHandler.remove(T1);
this._timeoutsHandler.remove(T2);
this._timeoutsHandler.remove(T4);
},
_refreshGlobals: function() {
isLeftButtons = Meta.prefs_get_button_layout().left_buttons.indexOf(Meta.ButtonFunction.CLOSE) >= 0;
isTopHeader = Me.settings.get_string('window-preview-title-position') == 'TOP';
isManualStyling = Me.settings.get_boolean('window-preview-manual-styling');
scaleFactor = Utils.getScaleFactor();
headerHeight = Me.settings.get_boolean('window-preview-show-title') ? HEADER_HEIGHT * scaleFactor : 0;
animationTime = Me.settings.get_int('window-preview-animation-time') * .001;
aspectRatio.x = {
size: Me.settings.get_int('window-preview-aspect-ratio-x'),
fixed: Me.settings.get_boolean('window-preview-fixed-x')
};
aspectRatio.y = {
size: Me.settings.get_int('window-preview-aspect-ratio-y'),
fixed: Me.settings.get_boolean('window-preview-fixed-y')
};
alphaBg = Me.settings.get_boolean('preview-use-custom-opacity') ?
Me.settings.get_int('preview-custom-opacity') * .01 :
this.panel.dynamicTransparency.alpha;
},
_updateClip: function() {
let x, y, w;
let geom = this.panel.getGeometry();
let panelBoxTheme = this.panel.panelBox.get_theme_node();
let previewSize = (Me.settings.get_int('window-preview-size') +
Me.settings.get_int('window-preview-padding') * 2) * scaleFactor;
if (this.isVertical) {
w = previewSize;
this.clipHeight = this.panel.monitor.height;
y = this.panel.monitor.y;
} else {
w = this.panel.monitor.width;
this.clipHeight = (previewSize + headerHeight);
x = this.panel.monitor.x;
}
if (geom.position == St.Side.LEFT) {
x = this.panel.monitor.x + this.panel.dtpSize + panelBoxTheme.get_padding(St.Side.LEFT);
} else if (geom.position == St.Side.RIGHT) {
x = this.panel.monitor.x + this.panel.monitor.width - (this.panel.dtpSize + previewSize) - panelBoxTheme.get_padding(St.Side.RIGHT);
} else if (geom.position == St.Side.TOP) {
y = this.panel.monitor.y + this.panel.dtpSize + panelBoxTheme.get_padding(St.Side.TOP);
} else { //St.Side.BOTTOM
y = this.panel.monitor.y + this.panel.monitor.height - (this.panel.dtpSize + panelBoxTheme.get_padding(St.Side.BOTTOM) + previewSize + headerHeight);
}
Utils.setClip(this, x, y, w, this.clipHeight);
},
_updatePosition: function() {
let sourceNode = this.currentAppIcon.actor.get_theme_node();
let sourceContentBox = sourceNode.get_content_box(this.currentAppIcon.actor.get_allocation_box());
let sourceAllocation = Utils.getTransformedAllocation(this.currentAppIcon.actor);
let [previewsWidth, previewsHeight] = this._getPreviewsSize();
let appIconMargin = Me.settings.get_int('appicon-margin') / scaleFactor;
let x = 0, y = 0;
previewsWidth = Math.min(previewsWidth, this.panel.monitor.width);
previewsHeight = Math.min(previewsHeight, this.panel.monitor.height);
this._updateScrollFade(previewsWidth < this.panel.monitor.width && previewsHeight < this.panel.monitor.height);
if (this.isVertical) {
y = sourceAllocation.y1 + appIconMargin - this.panel.monitor.y + (sourceContentBox.y2 - sourceContentBox.y1 - previewsHeight) * .5;
y = Math.max(y, 0);
y = Math.min(y, this.panel.monitor.height - previewsHeight);
} else {
x = sourceAllocation.x1 + appIconMargin - this.panel.monitor.x + (sourceContentBox.x2 - sourceContentBox.x1 - previewsWidth) * .5;
x = Math.max(x, 0);
x = Math.min(x, this.panel.monitor.width - previewsWidth);
}
if (!this.opened) {
this.menu.set_position(x, y);
this.menu.set_size(previewsWidth, previewsHeight);
} else {
Utils.animate(this.menu, getTweenOpts({ x: x, y: y, width: previewsWidth, height: previewsHeight }));
}
},
_updateScrollFade: function(remove) {
let [value, upper, pageSize] = this._getScrollAdjustmentValues();
let needsFade = Math.round(upper) > Math.round(pageSize);
let fadeWidgets = this.menu.get_children().filter(c => c != this._scrollView);
if (!remove && needsFade) {
if (!fadeWidgets.length) {
fadeWidgets.push(this._getFadeWidget());
fadeWidgets.push(this._getFadeWidget(true));
this.menu.add_child(fadeWidgets[0]);
this.menu.add_child(fadeWidgets[1]);
}
fadeWidgets[0].visible = value > 0;
fadeWidgets[1].visible = value + pageSize < upper;
} else if (remove || (!needsFade && fadeWidgets.length)) {
fadeWidgets.forEach(fw => fw.destroy());
}
},
_getScrollAdjustmentValues: function() {
let [value , , upper, , , pageSize] = this._scrollView[(this.isVertical ? 'v' : 'h') + 'scroll'].adjustment.get_values();
return [value, upper, pageSize];
},
_getFadeWidget: function(end) {
let x = 0, y = 0;
let startBg = Utils.getrgbaColor(this.panel.dynamicTransparency.backgroundColorRgb, Math.min(alphaBg + .1, 1));
let endBg = Utils.getrgbaColor(this.panel.dynamicTransparency.backgroundColorRgb, 0)
let fadeStyle = 'background-gradient-start:' + startBg +
'background-gradient-end:' + endBg +
'background-gradient-direction:' + this.panel.getOrientation();
if (this.isVertical) {
y = end ? this.panel.monitor.height - FADE_SIZE : 0;
} else {
x = end ? this.panel.monitor.width - FADE_SIZE : 0;
}
let fadeWidget = new St.Widget({
reactive: false,
pivot_point: Utils.getPoint({ x: .5, y: .5 }),
rotation_angle_z: end ? 180 : 0,
style: fadeStyle,
x: x, y: y,
width: this.isVertical ? this.width : FADE_SIZE,
height: this.isVertical ? FADE_SIZE : this.height
});
return fadeWidget;
},
_getPreviewsSize: function() {
let previewsWidth = 0;
let previewsHeight = 0;
this._box.get_children().forEach(c => {
if (!c.animatingOut) {
let [width, height] = c.getSize();
if (this.isVertical) {
previewsWidth = Math.max(width, previewsWidth);
previewsHeight += height;
} else {
previewsWidth += width;
previewsHeight = Math.max(height, previewsHeight);
}
}
});
return [previewsWidth, previewsHeight];
},
_animateOpenOrClose: function(show, onComplete) {
let isTranslationAnimation = this.menu[this._translationProp] != 0;
let tweenOpts = {
opacity: show ? 255 : 0,
transition: show ? 'easeInOutQuad' : 'easeInCubic',
onComplete: () => {
if (isTranslationAnimation) {
Main.layoutManager._queueUpdateRegions();
}
(onComplete || (() => {}))();
}
};
tweenOpts[this._translationProp] = show ? this._translationDirection : this._translationOffset;
Utils.animate(this.menu, getTweenOpts(tweenOpts));
},
_peek: function(window) {
let currentWorkspace = Utils.getCurrentWorkspace();
let windowWorkspace = window.get_workspace();
let focusWindow = () => this._focusMetaWindow(Me.settings.get_int('peek-mode-opacity'), window);
this._restorePeekedWindowStack();
this._peekedWindow = window;
if (currentWorkspace != windowWorkspace) {
this._switchToWorkspaceImmediate(windowWorkspace.index());
this._timeoutsHandler.add([T3, 100, focusWindow]);
} else {
focusWindow();
}
if (this.peekInitialWorkspaceIndex < 0) {
this.peekInitialWorkspaceIndex = currentWorkspace.index();
}
},
_endPeek: function(stayHere) {
this._timeoutsHandler.remove(T3);
if (this._peekedWindow) {
let immediate = !stayHere && this.peekInitialWorkspaceIndex != Utils.getCurrentWorkspace().index();
this._restorePeekedWindowStack();
this._focusMetaWindow(255, this._peekedWindow, immediate, true);
this._peekedWindow = null;
if (!stayHere) {
this._switchToWorkspaceImmediate(this.peekInitialWorkspaceIndex);
}
this.peekInitialWorkspaceIndex = -1;
}
},
_switchToWorkspaceImmediate: function(workspaceIndex) {
let workspace = Utils.getWorkspaceByIndex(workspaceIndex);
let shouldAnimate = Main.wm._shouldAnimate;
if (!workspace || (!workspace.list_windows().length &&
workspaceIndex < Utils.getWorkspaceCount() - 1)) {
workspace = Utils.getCurrentWorkspace();
}
Main.wm._shouldAnimate = () => false;
workspace.activate(global.display.get_current_time_roundtrip());
Main.wm._shouldAnimate = shouldAnimate;
},
_focusMetaWindow: function(dimOpacity, window, immediate, ignoreFocus) {
window.get_workspace().list_windows().forEach(mw => {
let wa = mw.get_compositor_private();
let isFocused = !ignoreFocus && mw == window;
if (wa) {
if (isFocused) {
mw[PEEK_INDEX_PROP] = wa.get_parent().get_children().indexOf(wa);
wa.get_parent().set_child_above_sibling(wa, null);
}
if (isFocused && mw.minimized) {
wa.show();
}
if (!mw.minimized) {
let tweenOpts = getTweenOpts({ opacity: isFocused ? 255 : dimOpacity });
if (immediate && !mw.is_on_all_workspaces()) {
tweenOpts.time = 0;
}
Utils.animateWindowOpacity(wa, tweenOpts);
}
}
});
},
_restorePeekedWindowStack: function() {
let windowActor = this._peekedWindow ? this._peekedWindow.get_compositor_private() : null;
if (windowActor) {
if (this._peekedWindow.hasOwnProperty(PEEK_INDEX_PROP)) {
windowActor.get_parent().set_child_at_index(windowActor, this._peekedWindow[PEEK_INDEX_PROP]);
delete this._peekedWindow[PEEK_INDEX_PROP];
}
if (this._peekedWindow.minimized) {
windowActor.hide();
}
}
},
});
var Preview = Utils.defineClass({
Name: 'DashToPanel-Preview',
Extends: St.Widget,
_init: function(previewMenu) {
this.callParent('_init', {
style_class: 'preview-container',
reactive: true,
track_hover: true,
layout_manager: new Clutter.BinLayout()
});
this.window = null;
this._waitWindowId = 0;
this._needsCloseButton = true;
this.cloneWidth = this.cloneHeight = 0;
this._previewMenu = previewMenu;
this._padding = Me.settings.get_int('window-preview-padding') * scaleFactor;
this._previewDimensions = this._getPreviewDimensions();
this.animatingOut = false;
let box = new St.Widget({ layout_manager: new Clutter.BoxLayout({ orientation: Clutter.Orientation.VERTICAL }), y_expand: true });
let [previewBinWidth, previewBinHeight] = this._getBinSize();
let closeButton = new St.Button({ style_class: 'window-close', accessible_name: 'Close window' });
if (Config.PACKAGE_VERSION >= '3.31.9') {
closeButton.add_actor(new St.Icon({ icon_name: 'window-close-symbolic' }));
}
this._closeButtonBin = new St.Widget({
style_class: 'preview-close-btn-container',
layout_manager: new Clutter.BinLayout(),
opacity: 0,
x_expand: true, y_expand: true,
x_align: Clutter.ActorAlign[isLeftButtons ? 'START' : 'END'],
y_align: Clutter.ActorAlign[isTopHeader ? 'START' : 'END']
});
this._closeButtonBin.add_child(closeButton);
this._previewBin = new St.Widget({
layout_manager: new Clutter.BinLayout(),
x_expand: true, y_expand: true,
style: 'padding: ' + this._padding / scaleFactor + 'px;'
});
this._previewBin.set_size(previewBinWidth, previewBinHeight);
box.add_child(this._previewBin);
if (headerHeight) {
let headerBox = new St.Widget({
style_class: 'preview-header-box',
layout_manager: new Clutter.BoxLayout(),
x_expand: true,
y_align: Clutter.ActorAlign[isTopHeader ? 'START' : 'END']
});
setStyle(headerBox, this._getBackgroundColor(HEADER_COLOR_OFFSET, 1));
this._workspaceIndicator = new St.Label({ y_align: Clutter.ActorAlign.CENTER });
this._windowTitle = new St.Label({ y_align: Clutter.ActorAlign.CENTER, x_expand: true });
this._iconBin = new St.Widget({ layout_manager: new Clutter.BinLayout() });
this._iconBin.set_size(headerHeight, headerHeight);
headerBox.add_child(this._iconBin);
headerBox.insert_child_at_index(this._workspaceIndicator, isLeftButtons ? 0 : 1);
headerBox.insert_child_at_index(this._windowTitle, isLeftButtons ? 1 : 2);
box.insert_child_at_index(headerBox, isTopHeader ? 0 : 1);
}
this.add_child(box);
this.add_child(this._closeButtonBin);
closeButton.connect('clicked', () => this._onCloseBtnClick());
this.connect('notify::hover', () => this._onHoverChanged());
this.connect('button-release-event', (actor, e) => this._onButtonReleaseEvent(e));
this.connect('destroy', () => this._onDestroy());
},
adjustOnStage: function() {
let closeButton = this._closeButtonBin.get_first_child();
let closeButtonHeight = closeButton.height;
let maxCloseButtonSize = MAX_CLOSE_BUTTON_SIZE * scaleFactor;
let closeButtonBorderRadius = '';
if (closeButtonHeight > maxCloseButtonSize) {
closeButtonHeight = maxCloseButtonSize;
closeButton.set_size(closeButtonHeight, closeButtonHeight);
}
if (!headerHeight) {
closeButtonBorderRadius = 'border-radius: ';
if (isTopHeader) {
closeButtonBorderRadius += (isLeftButtons ? '0 0 4px 0;' : '0 0 0 4px;');
} else {
closeButtonBorderRadius += (isLeftButtons ? '0 4px 0 0;' : '4px 0 0 0;');
}
}
setStyle(
this._closeButtonBin,
'padding: ' + (headerHeight ? Math.round((headerHeight - closeButtonHeight) * .5 / scaleFactor) : 4) + 'px;' +
this._getBackgroundColor(HEADER_COLOR_OFFSET, headerHeight ? 1 : .6) +
closeButtonBorderRadius
);
},
assignWindow: function(window, animateSize) {
if (this.window != window) {
let _assignWindowClone = () => {
if (window.get_compositor_private()) {
let cloneBin = this._getWindowCloneBin(window);
this._resizeClone(cloneBin, window);
this._addClone(cloneBin, animateSize);
this._previewMenu.updatePosition();
} else if (!this._waitWindowId) {
this._waitWindowId = Mainloop.idle_add(() => {
this._waitWindowId = 0;
if (this._previewMenu.opened) {
_assignWindowClone();
}
});
}
};
_assignWindowClone();
}
this._cancelAnimateOut();
this._removeWindowSignals();
this.window = window;
this._needsCloseButton = window.can_close() && !Utils.checkIfWindowHasTransient(window);
this._updateHeader();
},
animateOut: function() {
if (!this.animatingOut) {
let tweenOpts = getTweenOpts({ opacity: 0, width: 0, height: 0, onComplete: () => this.destroy() });
this.animatingOut = true;
Utils.stopAnimations(this);
Utils.animate(this, tweenOpts);
}
},
getSize: function() {
let [binWidth, binHeight] = this._getBinSize();
binWidth = Math.max(binWidth, this.cloneWidth + this._padding * 2);
binHeight = Math.max(binHeight, this.cloneHeight + this._padding * 2) + headerHeight;
return [binWidth, binHeight];
},
setFocus: function(focused) {
this._hideOrShowCloseButton(!focused);
setStyle(this, this._getBackgroundColor(FOCUSED_COLOR_OFFSET, focused ? '-' : 0));
if (focused) {
this._previewMenu.ensureVisible(this);
this._previewMenu.requestPeek(this.window);
}
},
activate: function() {
this._previewMenu.endPeekHere();
this._previewMenu.close();
Main.activateWindow(this.window);
},
_onDestroy: function() {
if (this._waitWindowId) {
GLib.source_remove(this._waitWindowId);
this._waitWindowId = 0;
}
this._removeWindowSignals();
},
_onHoverChanged: function() {
this.setFocus(this.hover);
},
_onCloseBtnClick: function() {
this._hideOrShowCloseButton(true);
this.reactive = false;
if (!Me.settings.get_boolean('group-apps')) {
this._previewMenu.close();
} else {
this._previewMenu.endPeekHere();
}
this.window.delete(global.get_current_time());
},
_onButtonReleaseEvent: function(e) {
switch (e.get_button()) {
case 1: // Left click
this.activate();
break;
case 2: // Middle click
if (Me.settings.get_boolean('preview-middle-click-close')) {
this._onCloseBtnClick();
}
break;
case 3: // Right click
this._showContextMenu(e);
break;
}
return Clutter.EVENT_STOP;
},
_cancelAnimateOut: function() {
if (this.animatingOut) {
this.animatingOut = false;
Utils.stopAnimations(this);
Utils.animate(this, getTweenOpts({ opacity: 255, width: this.cloneWidth, height: this.cloneHeight }));
}
},
_showContextMenu: function(e) {
let coords = e.get_coords();
let currentWorkspace = this._previewMenu.peekInitialWorkspaceIndex < 0 ?
Utils.getCurrentWorkspace() :
Utils.getWorkspaceByIndex(this._previewMenu.peekInitialWorkspaceIndex);
Main.wm._showWindowMenu(null, this.window, Meta.WindowMenuType.WM, {
x: coords[0],
y: coords[1],
width: 0,
height: 0
});
let ctxMenuData = Main.wm._windowMenuManager._manager._menus[0];
ctxMenuData.menu.connect('open-state-changed', () => this._previewMenu.menu.sync_hover());
if (this.window.get_workspace() != currentWorkspace) {
let menuItem = new PopupMenu.PopupMenuItem(_('Move to current Workspace') + ' [' + (currentWorkspace.index() + 1) + ']');
let menuItems = ctxMenuData.menu.box.get_children();
let insertIndex = Utils.findIndex(menuItems, c => c._delegate instanceof PopupMenu.PopupSeparatorMenuItem);
insertIndex = insertIndex >= 0 ? insertIndex : menuItems.length - 1;
ctxMenuData.menu.addMenuItem(menuItem, insertIndex);
menuItem.connect('activate', () => this.window.change_workspace(currentWorkspace));
}
},
_removeWindowSignals: function() {
if (this._titleWindowChangeId) {
this.window.disconnect(this._titleWindowChangeId);
this._titleWindowChangeId = 0;
}
},
_updateHeader: function() {
if (headerHeight) {
let iconTextureSize = Me.settings.get_boolean('window-preview-use-custom-icon-size') ?
Me.settings.get_int('window-preview-custom-icon-size') :
headerHeight / scaleFactor * .6;
let icon = this._previewMenu.getCurrentAppIcon().app.create_icon_texture(iconTextureSize);
let workspaceIndex = '';
let workspaceStyle = null;
let fontScale = Me.desktopSettings.get_double('text-scaling-factor');
let commonTitleStyles = 'color: ' + Me.settings.get_string('window-preview-title-font-color') + ';' +
'font-size: ' + Me.settings.get_int('window-preview-title-font-size') * fontScale + 'px;' +
'font-weight: ' + Me.settings.get_string('window-preview-title-font-weight') + ';';
this._iconBin.destroy_all_children();
this._iconBin.add_child(icon);
if (!Me.settings.get_boolean('isolate-workspaces')) {
workspaceIndex = (this.window.get_workspace().index() + 1).toString();
workspaceStyle = 'margin: 0 4px 0 ' + (isLeftButtons ? Math.round((headerHeight - icon.width) * .5) + 'px' : '0') + '; padding: 0 4px;' +
'border: 2px solid ' + this._getRgbaColor(FOCUSED_COLOR_OFFSET, .8) + 'border-radius: 2px;' + commonTitleStyles;
}
this._workspaceIndicator.text = workspaceIndex;
setStyle(this._workspaceIndicator, workspaceStyle);
this._titleWindowChangeId = this.window.connect('notify::title', () => this._updateWindowTitle());
setStyle(this._windowTitle, 'max-width: 0px; padding-right: 4px;' + commonTitleStyles);
this._updateWindowTitle();
}
},
_updateWindowTitle: function() {
this._windowTitle.text = this.window.title;
},
_hideOrShowCloseButton: function(hide) {
if (this._needsCloseButton) {
Utils.animate(this._closeButtonBin, getTweenOpts({ opacity: hide ? 0 : 255 }));
}
},
_getBackgroundColor: function(offset, alpha) {
return 'background-color: ' + this._getRgbaColor(offset, alpha) +
'transition-duration:' + this._previewMenu.panel.dynamicTransparency.animationDuration;
},
_getRgbaColor: function(offset, alpha) {
alpha = Math.abs(alpha);
if (isNaN(alpha)) {
alpha = alphaBg;
}
return Utils.getrgbaColor(this._previewMenu.panel.dynamicTransparency.backgroundColorRgb, alpha, offset);