initial commit 2

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diff --git a/addons/website_slides/static/src/js/slides_course_unsubscribe.js b/addons/website_slides/static/src/js/slides_course_unsubscribe.js
new file mode 100644
index 00000000..ec0e1049
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+++ b/addons/website_slides/static/src/js/slides_course_unsubscribe.js
@@ -0,0 +1,168 @@
+odoo.define('website_slides.unsubscribe_modal', function (require) {
+'use strict';
+
+var core = require('web.core');
+var Dialog = require('web.Dialog');
+var publicWidget = require('web.public.widget');
+var utils = require('web.utils');
+
+var QWeb = core.qweb;
+var _t = core._t;
+
+var SlideUnsubscribeDialog = Dialog.extend({
+    template: 'slides.course.unsubscribe.modal',
+    _texts: {
+        titleSubscribe: _t("Subscribe"),
+        titleUnsubscribe: _t("Notifications"),
+        titleLeaveCourse: _t("Leave the course")
+    },
+
+    /**
+     * @override
+     * @param {Object} parent
+     * @param {Object} options
+     */
+    init: function (parent, options) {
+        options = _.defaults(options || {}, {
+            title: options.isFollower === 'True' ? this._texts.titleSubscribe : this._texts.titleUnsubscribe,
+            size: 'medium',
+        });
+        this._super(parent, options);
+
+        this.set('state', '_subscription');
+        this.on('change:state', this, this._onChangeType);
+
+        this.channelID = parseInt(options.channelId, 10);
+        this.isFollower = options.isFollower === 'True';
+        this.enroll = options.enroll;
+    },
+    /**
+     * @override
+     */
+    start: function () {
+        var self = this;
+        return this._super.apply(this, arguments).then(function () {
+            self.$('input#subscribed').prop('checked', self.isFollower);
+            self._resetModal();
+        });
+    },
+
+    getSubscriptionState: function () {
+        return this.$('input#subscribed').prop('checked');
+    },
+
+    //--------------------------------------------------------------------------
+    // Private
+    //--------------------------------------------------------------------------
+    _getModalButtons: function () {
+        var btnList = [];
+        var state = this.get('state');
+        if (state === '_subscription') {
+            btnList.push({text: _t("Save"), classes: "btn-primary", click: this._onClickSubscriptionSubmit.bind(this)});
+            btnList.push({text: _t("Discard"), close: true});
+            btnList.push({text: _t("or Leave the course"), classes: "btn-danger ml-auto", click: this._onClickLeaveCourse.bind(this)});
+        } else if (state === '_leave') {
+            btnList.push({text: _t("Leave the course"), classes: "btn-danger", click: this._onClickLeaveCourseSubmit.bind(this)});
+            btnList.push({text: _t("Discard"), click: this._onClickLeaveCourseCancel.bind(this)});
+        }
+        return btnList;
+    },
+
+    /**
+     * @private
+     */
+    _resetModal: function () {
+        var state = this.get('state');
+        if (state === '_subscription') {
+            this.set_title(this.isFollower ? this._texts.titleUnsubscribe : this._texts.titleSubscribe);
+            this.$('input#subscribed').prop('checked', this.isFollower);
+        }
+        else if (state === '_leave') {
+            this.set_title(this._texts.titleLeaveCourse);
+        }
+        this.set_buttons(this._getModalButtons());
+    },
+
+    //--------------------------------------------------------------------------
+    // Handler
+    //--------------------------------------------------------------------------
+    _onClickLeaveCourse: function () {
+        this.set('state', '_leave');
+    },
+
+    _onClickLeaveCourseCancel: function () {
+        this.set('state', '_subscription');
+    },
+
+    _onClickLeaveCourseSubmit: function () {
+        this._rpc({
+            route: '/slides/channel/leave',
+            params: {channel_id: this.channelID},
+        }).then(function () {
+            window.location.reload();
+        });
+    },
+
+    _onClickSubscriptionSubmit: function () {
+        if (this.isFollower === this.getSubscriptionState()) {
+            this.destroy();
+            return;
+        }
+        this._rpc({
+            route: this.getSubscriptionState() ? '/slides/channel/subscribe' : '/slides/channel/unsubscribe',
+            params: {channel_id: this.channelID},
+        }).then(function () {
+            window.location.reload();
+        });
+    },
+
+    _onChangeType: function () {
+        var currentType = this.get('state');
+        var tmpl;
+        if (currentType === '_subscription') {
+            tmpl = 'slides.course.unsubscribe.modal.subscription';
+        } else if (currentType === '_leave') {
+            tmpl = 'slides.course.unsubscribe.modal.leave';
+        }
+        this.$('.o_w_slide_unsubscribe_modal_container').empty();
+        this.$('.o_w_slide_unsubscribe_modal_container').append(QWeb.render(tmpl, {widget: this}));
+
+        this._resetModal();
+    },
+});
+
+publicWidget.registry.websiteSlidesUnsubscribe = publicWidget.Widget.extend({
+    selector: '.o_wslides_js_channel_unsubscribe',
+    xmlDependencies: ['/website_slides/static/src/xml/website_slides_unsubscribe.xml'],
+    events: {
+        'click': '_onUnsubscribeClick',
+    },
+    //--------------------------------------------------------------------------
+    // Private
+    //--------------------------------------------------------------------------
+
+    _openDialog: function ($element) {
+        var data = $element.data();
+        return new SlideUnsubscribeDialog(this, data).open();
+    },
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * @private
+     * @param {Event} ev
+     */
+    _onUnsubscribeClick: function (ev) {
+        ev.preventDefault();
+        this._openDialog($(ev.currentTarget));
+    },
+});
+
+return {
+    SlideUnsubscribeDialog: SlideUnsubscribeDialog,
+    websiteSlidesUnsubscribe: publicWidget.registry.websiteSlidesUnsubscribe
+};
+
+});