activate_gnome/activate_gnome@isjerryxiao/extension.js

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/* extension.js
*
* 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
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* the Free Software Foundation, either version 3 of the License, or
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* (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
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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import St from 'gi://St'
import * as Main from 'resource:///org/gnome/shell/ui/main.js'
import { Extension } from 'resource:///org/gnome/shell/extensions/extension.js'
export default class ActivateGnomeExtension extends Extension {
constructor(metadata) {
super(metadata)
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this.labels = []
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this.settings = null
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this.handlers = []
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this.settings_get = (method, key) => this.settings[method](key) || this.settings.get_default_value(key)[method]()
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}
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update() {
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let text1 = this.settings_get('get_string', 'text-l1')
let text2 = this.settings_get('get_string', 'text-l2')
let vl2 = this.settings_get('get_double', 'l2-vertical')
let hl2 = this.settings_get('get_double', 'l2-horizontal')
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let size1 = parseInt(this.settings_get('get_double', 'size-l1'))
let size2 = parseInt(this.settings_get('get_double', 'size-l2'))
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let opacity = this.settings_get('get_double', 'opacity')
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this.cleanup()
for (let monitor of Main.layoutManager.monitors) {
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let label_1 = new St.Label({style_class: 'label-1', text: text1, opacity})
let label_2 = new St.Label({style_class: 'label-2', text: text2, opacity})
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label_1.set_style(`font-size: ${size1}px`)
label_2.set_style(`font-size: ${size2}px`)
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let params = {"trackFullscreen": false, "affectsStruts": false, "affectsInputRegion": true}
Main.layoutManager.addTopChrome(label_2, params)
Main.layoutManager.addTopChrome(label_1, params)
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this.labels.push(label_1)
this.labels.push(label_2)
let h = Math.max(0, Math.floor(monitor.height * vl2 - label_2.height))
let w = Math.max(0, Math.floor(monitor.width * hl2 - label_2.width))
label_2.set_position(monitor.x + w, monitor.y + h)
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label_1.set_position(Math.min(monitor.x + w, monitor.x + monitor.width - label_1.width), monitor.y + h - label_1.height)
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}
}
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cleanup() {
for (let label of this.labels) {
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Main.layoutManager.removeChrome(label)
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label.destroy()
}
this.labels = []
}
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enable() {
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this.settings = this.getSettings()
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this.handlers.push({
owner: this.settings,
id: this.settings.connect('changed', () => this.update())
})
this.handlers.push({
owner: Main.layoutManager,
id: Main.layoutManager.connect('monitors-changed', () => this.update())
})
this.handlers.push({
owner: Main.layoutManager,
id: Main.layoutManager.connect('startup-complete', () => this.update())
})
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if (!Main.layoutManager._startingUp) this.update()
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}
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disable() {
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this.cleanup()
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for (let handler of this.handlers) {
handler.owner.disconnect(handler.id)
}
this.handlers = []
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this.settings = null
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}
}